CISCO SYSTEMS INC
S-8, 1999-12-21
COMPUTER COMMUNICATIONS EQUIPMENT
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<PAGE>   1
     As filed with the Securities and Exchange Commission December 21, 1999
                                                      Registration No. 333-_____

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              ---------------------
                                    FORM S-8
                             REGISTRATION STATEMENT

                                      Under
                           The Securities Act of 1933
                              ---------------------
                               CISCO SYSTEMS, INC.
             (Exact name of registrant as specified in its charter)

           CALIFORNIA                                   77-0059951
  (State or other jurisdiction                         (IRS Employer
 of incorporation or organization)                   Identification No.)

             170 WEST TASMAN DRIVE, SAN JOSE, CALIFORNIA 95134-1706
               (Address of principal executive offices) (Zip Code)

                       V-BITS, INC. 1997 STOCK OPTION PLAN

          WEBLINE COMMUNICATIONS CORPORATION 1997 STOCK INCENTIVE PLAN

                              ---------------------
                           (Full titles of the Plans)
                              ---------------------
                                JOHN T. CHAMBERS
                 PRESIDENT, CHIEF EXECUTIVE OFFICER AND DIRECTOR

                               CISCO SYSTEMS, INC.
             170 WEST TASMAN DRIVE, SAN JOSE, CALIFORNIA 95134-1706
                     (Name and address of agent for service)
                                 (408) 526-4000
          (Telephone number, including area code, of agent for service)
                              ---------------------
                         CALCULATION OF REGISTRATION FEE

================================================================================
<TABLE>
<CAPTION>
           <S>                                 <C>               <C>                 <C>             <C>
                                                                    Proposed          Proposed
            Title of                                                Maximum           Maximum
           Securities                              Amount           Offering         Aggregate         Amount of
              to be                                to be             Price            Offering       Registration
           Registered                          Registered(1)     per Share (2)       Price (2)            Fee
           ----------                          -------------     -------------       ---------       ------------
 V-Bits, Inc. 1997 Stock Option Plan           45,140 shares         $15.86         $715,920.40         $189.00
 -------------------------------
 Common Stock (par value $0.01)

 WebLine Communications Corporation             1,395 shares         $ 0.95         $  1,325.25         $  0.35
 1997 Stock Incentive Plan
 Common Stock (par value $0.01)

 Total                                         46,535 shares          N/A           $717,245.65         $189.35
</TABLE>
================================================================================

(1)     This Registration Statement shall also cover any additional shares of
        Registrant's Common Stock that become issuable under the V-Bits, Inc.
        1997 Stock Option Plan and the WebLine Communications Corporation
        1997 Stock Incentive Plan by reason of any stock dividend, stock split,
        recapitalization or other similar transaction effected without the
        Registrant's receipt of consideration that results in an increase in the
        number of the Registrant's outstanding shares of Common Stock.

(2)     Calculated solely for purposes of this offering under Rule 457(h) of the
        Securities Act of 1933, as amended, on the basis of the weighted average
        exercise price of the outstanding options.


<PAGE>   2





                                           PART II

                      INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference

        Cisco Systems, Inc. (the "Registrant") hereby incorporates by reference
into this Registration Statement the following documents previously filed with
the Securities and Exchange Commission (the "Commission"):

        (a)    The Registrant's Annual Report on Form 10-K for the fiscal year
               ended July 31, 1999, filed with the Commission on September 28,
               1999, pursuant to Section 13 of the Securities Exchange Act of
               1934, as amended (the "1934 Act");

        (b)    The Registrant's Quarterly Report on Form 10-Q for the fiscal
               quarter ended October 30, 1999, filed with the Commission on
               December 14, 1999, pursuant to Section 13 of the 1934 Act.

        (c)    The Registrant's Current Reports on Form 8-K filed with the
               Commission on August 13, 1999, as amended on Form 8-K/A filed
               with the Commission on August 13, 1999, August 26, 1999,
               September 27, 1999, October 20, 1999, November 4, 1999,
               November 17, 1999 and December 15, 1999;

        (d)    The Registrant's Registration Statement No. 000-18225 on Form 8-A
               filed with the Commission on January 11, 1990, together with
               Amendment No. 1 on Form 8-A/A filed with the Commission on
               February 15, 1990, and including any other amendments or reports
               filed for the purpose of updating such description, in which
               there is described the terms, rights and provisions applicable to
               the Registrant's Common Stock, and;

        (e)    The Registrant's Registration Statement No. 000-18225 on Form 8-A
               filed with the Commission on June 11, 1998, including any
               amendments or reports filed for the purpose of updating such
               description, in which there is described the terms, rights and
               provisions applicable to the Registrant's Preferred Stock
               Purchase Rights.

               All reports and definitive proxy or information statements filed
pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act after the date of
this Registration Statement and prior to the filing of a post-effective
amendment which indicates that all securities offered hereby have been sold or
which de-registers all securities then remaining unsold shall be deemed to be
incorporated by reference into this Registration Statement and to be a part
hereof from the date of filing of such documents. Any statement contained in a
document incorporated or deemed to be incorporated by reference herein shall be
deemed to be modified or superseded for purposes of this Registration Statement
to the extent that a statement contained herein or in any subsequently filed
document which also is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Registration Statement.

Item 4.  Description of Securities

               Not Applicable.

Item 5.  Interests of Named Experts and Counsel

               Not Applicable.

Item 6.  Indemnification of Directors and Officers

               Section 317 of the California Corporations Code authorizes a
court to award, or a corporation's Board of Directors to grant indemnity to
directors and officers in terms sufficiently broad to permit indemnification
(including reimbursement of expenses incurred) under certain circumstances for
liabilities arising under the Securities Act of 1933, as amended, (the "1933
Act"). The Registrant's Restated Articles of Incorporation, as amended, and
Amended and Restated Bylaws provide for indemnification of its directors,
officers, employees and other agents to the maximum extent permitted by the
California Corporations Code. In addition, the Registrant has entered into
Indemnification Agreements with each of its directors and officers.


                                      II-1
<PAGE>   3


Item 7.  Exemption from Registration Claimed

               Not Applicable.

Item 8.  Exhibits

<TABLE>
<CAPTION>
Exhibit Number        Exhibit
<S>                   <C>
  4                   Instruments Defining the Rights of Stockholders. Reference
                      is made to Registrant's Registration Statements No.
                      000-18225 on Form 8-A, together with the amendments and
                      exhibits thereto, which are incorporated herein by
                      reference pursuant to Items 3(d) and 3(e).

  5.1                 Opinion and consent of Brobeck, Phleger & Harrison LLP.

  23.1                Consent of PricewaterhouseCoopers LLP, Independent
                      Accountants.

  23.2                Consent of Brobeck, Phleger & Harrison LLP is contained in
                      Exhibit 5.1.

  24                  Power of Attorney. Reference is made to page II-3 of this
                      Registration Statement.

  99.1                V-Bits, Inc. 1997 Stock Option Plan.

  99.2                V-Bits, Inc. - Form of Incentive Stock Option Agreement.

  99.3                V-Bits, Inc. - Form of Nonstatutory Stock Option
                      Agreement.

  99.4                Form of Option Assumption Agreement (V-Bits Option Shares).

  99.5                Form of Option Assumption Agreement (V-Bits Option Shares)
                      - Partial Acceleration.

  99.6                Form of Option Assumption Agreement (V-Bits Option Shares)
                      - Full Acceleration.

  99.7*               WebLine Communications Corporation 1997 Stock Incentive
                      Plan.

  99.8*               WebLine Communications Corporation 1997 Stock Incentive
                      Plan - Form of Incentive Stock Option Agreement.

  99.9*               WebLine Communications Corporation 1997 Stock Incentive
                      Plan - Form of Incentive Stock Option Agreement - Partial
                      Acceleration.

  99.10*              WebLine Communications Corporation 1997 Stock Incentive
                      Plan - Form of Nonstatutory Stock Option Agreement.

  99.11*              Form of Option Assumption Agreement (WebLine Option Shares).
</TABLE>

* Exhibits 99.7, 99.8, 99.9, 99.10, and 99.11 are incorporated herein by
  reference to Exhibits 99.1, 99.2, 99.3, 99.4, and 99.5, respectively, of
  Registrant's Registration Statement No. 333-91911 on Form S-8 filed with the
  Commission on December 1, 1999.

Item 9.  Undertakings

               A. The undersigned Registrant hereby undertakes: (1) to file,
during any period in which offers or sales are being made, a post-effective
amendment to this Registration Statement: (i) to include any prospectus required
by Section 10(a)(3) of the 1933 Act, (ii) to reflect in the prospectus any facts
or events arising after the effective date of this Registration Statement (or
the most recent post-effective amendment thereof) which, individually or in the
aggregate, represent a fundamental change in the information set forth in this
Registration Statement and (iii) to include any material information with
respect to the plan of distribution not previously disclosed in this
Registration Statement or any material change to such information in this
Registration Statement; provided, however, that clauses (1)(i) and (1)(ii) shall
not apply if the information required to be included in a post-effective
amendment by those clauses is contained in periodic reports filed by the
Registrant pursuant to Section 13 or Section 15(d) of the 1934 Act that are
incorporated by reference into this Registration Statement; (2) that for the
purpose of determining any liability under the 1933 Act each such post-effective
amendment shall be deemed to be a new registration statement relating to the
securities offered therein and the offering of such securities at that time
shall be deemed to be the initial bona fide offering thereof; and (3) to remove
from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the V-Bits, Inc. 1997
Stock Option Plan and the WebLine Communications Corporation 1997 Stock
Incentive Plan.

               B. The undersigned Registrant hereby undertakes that, for
purposes of determining any liability under the 1933 Act, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
1934 Act that is incorporated by reference into this Registration Statement
shall be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.

               C. Insofar as indemnification for liabilities arising under the
1933 Act may be permitted to directors, officers or controlling persons of the
Registrant pursuant to the indemnification provisions summarized in Item 6 or
otherwise, the Registrant has been advised that, in the opinion of the
Commission, such indemnification is against public policy as expressed in the
1933 Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer, or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the 1933 Act and
will be governed by the final adjudication of such issue.

                                      II-2
<PAGE>   4



                                   SIGNATURES

               Pursuant to the requirements of the Securities Act of 1933, as
amended, the Registrant certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-8, and has duly caused
this Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of San Jose, State of California on this
21st day of December, 1999.

                             CISCO SYSTEMS, INC.


                             By: /s/ John T. Chambers
                                -----------------------------------------------
                                John T. Chambers
                                President, Chief Executive Officer and Director



                                POWER OF ATTORNEY

               KNOW ALL PERSONS BY THESE PRESENTS, that each person whose
signature appears below constitutes and appoints John T. Chambers and Larry R.
Carter, and each of them, as such person's true and lawful attorneys-in-fact and
agents, with full power of substitution and resubstitution, for such person and
in such person's name, place and stead, in any and all capacities, to sign any
and all amendments (including post-effective amendments) to this Registration
Statement, and to file same, with all exhibits thereto, and other documents in
connection therewith, with the Securities and Exchange Commission, granting unto
said attorneys-in-fact and agents, and each of them, full power and authority to
do and perform each and every act and thing requisite and necessary to be done
in connection therewith, as fully to all intents and purposes as such person
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or any of them, or their or his or her
substitutes, may lawfully do or cause to be done by virtue thereof.

               Pursuant to the requirements of the Securities Act of 1933, as
amended, this Registration Statement has been signed below by the following
persons on behalf of the Registrant and in the capacities and on the dates
indicated:

<TABLE>
<CAPTION>
Signature                              Title                                          Date
- ---------                              -----                                          -----
<S>                                    <C>                                      <C>
/s/ John T. Chambers                   President, Chief Executive               December 21, 1999
- ---------------------------------      Officer and Director
John T. Chambers                       (Principal Executive Officer)


/s/ Larry R. Carter                    Senior Vice President, Finance           December 21, 1999
- ---------------------------------      and Administration, Chief Financial
Larry R. Carter                        Officer and Secretary
                                       (Principal Financial and Accounting
                                       Officer)


/s/ John P. Morgridge                  Chairman of the Board and                December 21, 1999
- ---------------------------------      Director
John P. Morgridge
</TABLE>

                                      II-3

<PAGE>   5

<TABLE>
<S>                                                                             <C>
/s/ Donald T. Valentine                Vice Chairman of the Board and           December 21, 1999
- ---------------------------------      Director
Donald T. Valentine

/s/ James F. Gibbons                   Director                                 December 21, 1999
- ---------------------------------
James F. Gibbons

/s/ Steven M. West                     Director                                 December 21, 1999
- ---------------------------------
Steven M. West

/s/ Edward R. Kozel                    Director                                 December 21, 1999
- ---------------------------------
Edward R. Kozel

/s/ Carol A. Bartz                     Director                                 December 21, 1999
- ---------------------------------
Carol A. Bartz

/s/ James C. Morgan                    Director                                 December 21, 1999
- ---------------------------------
James C. Morgan

/s/ Mary Cirillo                       Director                                 December 21, 1999
- ---------------------------------
Mary Cirillo

/s/ Arun Sarin                         Director                                 December 21, 1999
- ---------------------------------
Arun Sarin
</TABLE>

                                      II-4

<PAGE>   6

                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
Exhibit Number        Exhibit
- -------------         -------
<S>                   <C>
4                     Instruments Defining the Rights of Stockholders. Reference
                      is made to Registrant's Registration Statements No.
                      000-18225 on Form 8-A, together with the amendments and
                      exhibits thereto, which are incorporated herein by
                      reference pursuant to Items 3(d) and 3(e).

5.1                   Opinion and consent of Brobeck, Phleger & Harrison LLP.

23.1                  Consent of PricewaterhouseCoopers LLP, Independent Accountants.

23.2                  Consent of Brobeck, Phleger & Harrison LLP is contained in
                      Exhibit 5.1.

24                    Power of Attorney. Reference is made to page II-3 of this
                      Registration Statement.

99.1                  V-Bits, Inc. 1997 Stock Option Plan.

99.2                  V-Bits, Inc. - Form of Incentive Stock Option Agreement.

99.3                  V-Bits, Inc. - Form of Nonstatutory Stock Option
                      Agreement.

99.4                  Form of Option Assumption Agreement (V-Bits Option Shares).

99.5                  Form of Option Assumption Agreement (V-Bits Option Shares)
                      - Partial Acceleration.

99.6                  Form of Option Assumption Agreement (V-Bits Option Shares)
                      - Full Acceleration.

99.7*                 WebLine Communications Corporation 1997 Stock Incentive
                      Plan.

99.8*                 WebLine Communications Corporation 1997 Stock Incentive
                      Plan - Form of Incentive Stock Option Agreement.

99.9*                 WebLine Communications Corporation 1997 Stock Incentive
                      Plan - Form of Incentive Stock Option Agreement - Partial
                      Acceleration.

99.10*                WebLine Communications Corporation 1997 Stock Incentive
                      Plan - Form of Nonstatutory Stock Option Agreement.

99.11*                Form of Option Assumption Agreement (WebLine Option Shares).
</TABLE>

* Exhibits 99.7, 99.8, 99.9, 99.10, and 99.11 are incorporated herein by
  reference to Exhibits 99.1, 99.2, 99.3, 99.4, and 99.5, respectively, of
  Registrant's Registration Statement No. 333-91911 on Form S-8 filed with the
  Commission on December 1, 1999.

<PAGE>   1
                                                                      EXHIBIT 5

             OPINION AND CONSENT OF BROBECK, PHLEGER & HARRISON LLP

                               December 21, 1999

Cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706

               Re:  Cisco Systems, Inc. - Registration Statement for Offering of
                    an Aggregate of 46,535 Shares of Common Stock

Dear Ladies and Gentlemen:

               We have acted as counsel to Cisco Systems, Inc., a California
corporation (the "Company"), in connection with the registration on Form S-8
(the "Registration Statement") under the Securities Act of 1933, as amended, of
an aggregate of 46,535 shares of common stock (the "Shares") and related stock
options under the V-Bits, Inc. 1997 Stock Option Plan (the "V-Bits Plan") and
the WebLine Communications Corporation 1997 Stock Incentive Plan (the "WebLine
Plan"). This opinion is being furnished in accordance with the requirements of
Item 8 of Form S-8 and Item 601(b)(5)(i) of Regulation S-K.

               We have reviewed the Company's charter documents and the
corporate proceedings taken by the Company in connection with the assumption of
the V-Bits Plan and the WebLine Plan and the options outstanding thereunder.
Based on such review, we are of the opinion that if, as and when the Shares are
issued and sold (and the consideration therefor received) pursuant to the
provisions of option agreements duly authorized under the V-Bits Plan and the
WebLine Plan and in accordance with the Registration Statement, such Shares will
be duly authorized, legally issued, fully paid and nonassessable.

               We consent to the filing of this opinion letter as Exhibit 5.1 to
the Registration Statement.

               This opinion letter is rendered as of the date first written
above, and we disclaim any obligation to advise you of facts, circumstances,
events or developments that hereafter may be brought to our attention and that
may alter, affect or modify the opinion expressed herein. Our opinion is
expressly limited to the matters set forth above, and we render no opinion,
whether by implication or otherwise, as to any other matters relating to the
Company, the V-Bits Plan, the WebLine Plan or the Shares.

                                            Very truly yours,

                                            /s/ Brobeck, Phleger & Harrison LLP

                                            BROBECK, PHLEGER & HARRISON LLP



<PAGE>   1

                                                                   EXHIBIT 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our report dated August 10, 1999 relating to the
consolidated financial statements, which appears in the 1999 Annual Report to
Shareholders of Cisco Systems, Inc., which is incorporated by reference in Cisco
Systems, Inc.'s Annual Report on Form 10-K for the year ended July 31, 1999. We
also consent to the incorporation by reference of our report dated August 10,
1999 relating to the financial statement schedule, which appears in such Annual
Report on Form 10-K. We also consent to the incorporation by reference of our
report dated August 10, 1999, except as to the pooling of interests transactions
as described in Note 3b which is as of November 24, 1999, relating to the
supplementary consolidated financial statements of Cisco Systems, Inc. which
appears in the Current Report on Form 8-K dated December 15, 1999.

                                            /s/ PRICEWATERHOUSECOOPERS LLP
                                            ------------------------------
                                            PricewaterhouseCoopers LLP

San Jose, California
December 17, 1999

<PAGE>   1
                                                                    EXHIBIT 99.1

                                  V-BITS, INC.
                             1997 STOCK OPTION PLAN

        1. ESTABLISHMENT, PURPOSE AND TERM OF PLAN.

            1.1 ESTABLISHMENT. The V-Bits, Inc. 1997 Stock Option Plan (the
"Plan") is hereby established effective as of October 31, 1997.

            1.2 PURPOSE The purpose of the Plan is to advance the interests of
the Participating Company Group and its shareholders by providing an incentive
to attract, retain and reward persons performing services for the Participating
Company Group and by motivating such persons to contribute to the growth and
profitability of the Participating Company Group.

            1.3 TERM OF PLAN. The Plan shall continue in effect until the
earlier of its termination by the Board or the date on which all of the shares
of Stock available for issuance under the Plan have been issued and all
restrictions on such shares under the terms of the Plan and the agreements
evidencing Options granted under the Plan have lapsed. However, all Options
shall be granted, if at all, within ten (10) years from the earlier of the date
the Plan is adopted by the Board or the date the Plan is duly approved by the
shareholders of the Company.

        2. DEFINITIONS AND CONSTRUCTION.

            2.1 DEFINITIONS Whenever used herein, the following terms shall have
their respective meanings set forth below:

                (a) "BOARD" means the Board of Directors of the Company. If one
or more Committees have been appointed by the Board to administer the Plan,
"BOARD" also means such Committee(s).

                (b) "CODE" means the Internal Revenue Code of 1986, as amended,
and any. applicable regulations promulgated thereunder.

                (c) "COMMITTEE" means the Compensation Committee or other
committee of the Board duly appointed to administer the Plan and having such
powers as shall be specified by the Board. Unless the powers of the Committee
have been specifically limited, the Committee shall have all of the powers of
the Board granted herein, including, without limitation, the power to amend or
terminate the Plan at any time, subject to the terms of the Plan and any
applicable limitations imposed by law.

                (d) "COMPANY" means V-Bits, a California corporation, or any
successor corporation thereto.

                (e) "CONSULTANT" means any person, including an advisor, engaged
by Participating Company to render services other than as an Employee or a
Director.


<PAGE>   2



                (f) "DIRECTOR" means a member of the Board or of the board of
directors of any other Participating Company.

                (g) "DISABILITY" means the inability of the Optionee, in the
opinion of a qualified physician acceptable to the Company, to perform the major
duties of the Optionee's position with the Participating Company group because
of the sickness or injury of the Optionee.

                (h) "EMPLOYEE" means any person treated as an employee
(including an officer of a Director who is also treated as an employee) in the
records of a Participating Company and, with respect to any Incentive Stock
Option granted to such person, who is an employee for purposes of Section 422 of
the Code; provided, however, that neither service as a Director nor payment of a
director's fee shall be sufficient to constitute employment for purposes of the
Plan.

                (i) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

                (j) "FAIR MARKET VALUE" means, as of any date, the value of a
share of Stock or other property as determined by the Board, in its sole
discretion, or by the Company, in its sole discretion, if such determination is
expressly allocated to the Company herein, subject to the following:

                    (i) If, on such date, there is a public market for the
stock, the Fair Market Value of a share of stock shall be the closing sale price
of a share of Stock (or the mean of the closing bid and asked prices of a share
of Stock is so quoted instead) as quoted on the Nasdaq National Market, the
Nasdaq Small-Cap Market or such other national or regional securities exchange
or market system constituting the primary market for the Stock, as reported in
the Wall Street Journal or such other source as the Company deems reliable. If
the relevant date does not fall on a day on which the Stock has traded on such
securities exchange or market system, the date on which the Fair Market Value
shall be established shall be the last day on which the Stock was so traded
prior to the relevant date, or such other appropriate day as shall be determined
by the Board, in its sole discretion.

                    (ii) If, on such date, there is no public market for the
Stock, the Fair Market Value of a share of Stock shall be as determined by the
Board without regard to any restriction other than a restriction which, by its
terms, will never lapse.

                (k) "INCENTIVE STOCK OPTION" means an Option intended to be (as
set forth in the Option Agreement) and which qualifies as an incentive stock
option within the meaning of Section 422(b) of the Code.

                (l) "INSIDER" means an officer or a Director of the Company or
any other person whose transactions in Stock are subject to Section 16 of the
Exchange Act.

                (m) "NONSTATUTORY STOCK OPTION" means an Option not intended to
be (as set forth in the Option Agreement) or which does not qualify as an
Incentive Stock Option.


                                       2
<PAGE>   3


                (n) "OPTION" means a right to purchase Stock (subject to
adjustment as provided in Section 4.2) pursuant to the terms and conditions of
the Plan. An Option may be either an Incentive Stock Option or a Nonstatutory
Stock Option.

                (o) "OPTION AGREEMENT" means a written agreement between the
Company and an Optionee setting forth the terms, conditions and restrictions of
the Option granted to the Optionee and any shares acquired upon the exercise
thereof.

                (p) "OPTIONEE" means a person who has been granted one or more
Options.

                (q) "PARENT CORPORATION" means any present or future "parent
corporation" of the Company, as defined in Section 424(e) of the Code.

                (r) "PARTICIPATING COMPANY" means the Company or any Parent
Corporation or Subsidiary Corporation.

                (s) "PARTICIPATING COMPANY GROUP" means, at any point in time,
all corporations collectively which are then Participating Companies.

                (t) "RULE 16b-3" means Rule 16b-3 under the Exchange Act, as
amended from time to time, or any successor rule or regulation.

                (u) "SECURITIES ACT" means the Securities Act of 1933, as
amended.

                (v) "SERVICE" means an Optionee's employment or service with the
Participating Company Group, whether in the capacity of an Employee, a Director
or a Consultant. The Optionee's Service shall not be deemed to have terminated
merely because of a change in the capacity in which the Optionee renders Service
to the Participating Company Group or a change in the Participating Company for
which the Optionee renders such Service, provided that there is no interruption
or termination of the Optionee's Service. Furthermore, an Optionee's Service
with the Participating Company Group shall not be deemed to have terminated if
the Optionee takes any military leave, sick leave, or other bona fide leave of
absence approved by the Company; provided, however, that if any such leave
exceeds ninety (90) days, on the ninety-first (91st) day of such leave the
Optionee's Service shall be deemed to have terminated unless the Optionee's
right to return to Service with the Participating Company Group is guaranteed by
statute or contract. Notwithstanding the foregoing, unless otherwise designated
by the Company or required by law, a leave of absence shall not be treated as
Service for purposes of determining vesting under the Optionee's Option
Agreement. The Optionee's Service shall be deemed to have terminated either upon
an actual termination of Service or upon the corporation for which the Optionee
performs Service ceasing to be a Participating Company. Subject to the
foregoing, the Company, in its sole discretion, shall determine whether the
Optionee's Service has terminated the effective date of such termination.

                (w) "STOCK" means the common stock of the Company, as adjusted
from time to time in accordance with Section 4.2.



                                       3
<PAGE>   4



                (x) "SUBSIDIARY CORPORATION" means any present or future
"subsidiary corporation" of the Company, as defined in Section 424(f) of the
Code.

                (y) "TEN PERCENT OWNER OPTIONEE" means an Optionee who, at the
time an Option is granted to the Optionee, owns stock possessing more than ten
percent (10%) of the total combined voting power of all classes of stock of a
Participating Company within the meaning of Section 422(b)(6) of the Code.

            2.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of the Plan. Except when otherwise indicated by the context, the
singular shall include the plural and the plural shall include the singular. Use
of the term "or" is not intended to be exclusive, unless the context clearly
requires otherwise.

        3. ADMINISTRATION.

            3.1 ADMINISTRATION BY THE BOARD. The Plan shall be administered by
the Board. All questions of interpretation of the Plan or of any Option shall be
determined by the Board, and such determinations shall be final and binding upon
all persons having an interest in the Plan or such Option. Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, determination or election which
is the responsibility of or which is allocated to the Company herein, provided
the officer has apparent authority with respect to such matter, right,
obligation, determination or election.

            3.2 ADMINISTRATION WITH RESPECT TO INSIDERS. With respect to
participation by Insiders in the Plan, at any time that any class of equity
security of the Company is registered pursuant to Section 12 of the Exchange
Act, the Plan shall be administered in compliance with the requirements, if any,
of Rule 16b-3.

            3.3 POWERS OF THE BOARD. In addition to any other powers set forth
in the Plan and subject to the provisions of the Plan, the Board shall have the
full and final power and authority, in its sole discretion:

                (a) to determine the persons to whom, and the time or times at
which, Options shall be granted and the number of shares of Stock to be subject
to each Option;

                (b) to designate Options as Incentive Stock Options or
Nonstatutory Stock Options;

                (c) to determine the Fair Market Value of shares of Stock or
other property;

                (d) to determine the terms, conditions and restrictions
applicable to each Option (which need not be identical) and any shares acquired
upon the exercise thereof, including, without limitation, (i) the exercise price
of the Option, (ii) the method of payment for shares purchased upon the exercise
of the Option, (iii) the method for satisfaction of any tax withholding
obligation arising in connection with the Option or such shares, including by
the withholding or delivery of shares of stock, (iv) the timing, terms and
conditions of the


                                       4
<PAGE>   5



exercisability of the Option or the vesting of any shares acquired upon the
exercise thereof, (v) the time of the expiration of the Option, (vi) the effect
of the Optionee's termination of Service with the Participating Company Group on
any of the foregoing, and (vii) all other terms, conditions and restrictions
applicable to the Option or such shares not inconsistent with the terms of the
Plan;

                (e) to approve one or more forms of Option Agreement;

                (f) to amend, modify, extend, cancel, renew, reprice or
otherwise adjust the exercise price of, or grant a new Option in substitution
for, any Option or to waive any restrictions or conditions applicable to any
Option or any shares acquired upon the exercise thereof;

                (g) to accelerate, continue, extend or defer the exercisability
of any Option or the vesting of any shares acquired upon the exercise thereof,
including with respect to the period following an Optionee's termination of
Service with the Participating Company Group;

                (h) to prescribe, amend or rescind rules, guidelines and
policies relating to the Plan, or to adopt supplements to, or alternative
versions of, the Plan, including, without limitation, as the Board deems
necessary or desirable to comply with the laws of, or to accommodate the tax
policy or custom of, foreign jurisdictions whose citizens may be granted
Options; and

                (i) to correct any defect, supply any omission or reconcile any
inconsistency in the Plan or any Option Agreement and to make all other
determinations and take such other actions with respect to the Plan or any
Option as the Board may deem advisable to the extent consistent with the Plan
and applicable law.

        4. SHARES SUBJECT TO PLAN.

            4.1 MAXIMUM NUMBER OF SHARES ISSUABLE. Subject to adjustment as
provided in Section 4.2, the maximum aggregate number of shares of Stock that
may be issued under the Plan shall be Two Million Five Hundred Thousand
(2,500,000) and shall consist of authorized but unissued or reacquired shares of
Stock or any combination thereof If an outstanding Option for any reason expires
or is terminated or canceled or shares of Stock acquired, subject to repurchase,
upon the exercise of an Option are repurchased by the Company, the shares of
Stock allocable to the unexercised portion of such Option, or such repurchased
shares of Stock, shall again be available for issuance under the Plan.
Notwithstanding the foregoing, at any such time as the offer and sale of
securities pursuant to the Plan is subject to compliance with Section 260.140.45
of Title 10 of the California Code of Regulations ("Section 260.140.45 "), the
total number of shares of Stock issuable upon the exercise of all outstanding
Options (together with options outstanding under any other stock option plan of
the Company) and the total number of shares provided for under any stock bonus
or similar plan of the Company shall not exceed thirty percent (30%) (or such
other higher percentage limitation as may be approved by the shareholders of the
Company pursuant to Section 260.140.45) of the


                                       5
<PAGE>   6


then outstanding shares of the Company as calculated in accordance with the
conditions and exclusions of Section 260.140.45.

            4.2 ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE. In the event of
any stock dividend, stock split, reverse stock split, recapitalization,
combination, reclassification or similar change in the capital structure of the
Company, appropriate adjustments shall be made in the number and class of shares
subject to the Plan and to any outstanding Options and in the exercise price per
share of any outstanding Options. If a majority of the shares which are of the
same class as the shares that are subject to outstanding Options are exchanged
for, converted into, or otherwise become (whether or not pursuant to an
Ownership Change Event, as defined in Section 8. 1) shares of another
corporation (the "NEW SHARES"), the Board may unilaterally amend the outstanding
Options to provide that such Options are exercisable for New Shares. In the
event of any such amendment, the number of shares subject to, and the exercise
price per share of, the outstanding Options shall be adjusted in a fair and
equitable manner as determined by the Board, in its sole discretion.
Notwithstanding the foregoing, any fractional share resulting from an adjustment
pursuant to this Section 4.2 shall be rounded up or down to the nearest whole
number, as determined by the Board, and in no event may the exercise price of
any Option be decreased to an amount less than the par value, if any, of the
stock subject to the Option. The adjustments determined by the Board pursuant to
this Section 4.2 shall be final, binding and conclusive.

        5. ELIGIBILITY AND OPTION LIMITATIONS.

            5.1 PERSONS ELIGIBLE FOR OPTION. Options may be granted only to
Employees, Consultants, and Directors. For purposes of the foregoing sentence,
"EMPLOYEES, "CONSULTANTS" AND "DIRECTORS" shall include prospective Employees,
prospective Consultants and prospective Directors to whom Options are granted in
connection with written offers of an employment or other service relationship
with the Participating Company Group. Eligible persons may be granted more than
one (1) Option.

            5.2 OPTION GRANT RESTRICTIONS. Any person who is not an Employee on
the effective date of the grant of an Option to such person may be granted only
a Nonstatutory Stock Option. An Incentive Stock Option granted to a prospective
Employee upon the condition that such person become an Employee shall be deemed
granted effective on the date such person commences service with a Participating
Company, with an exercise price determined as of such date in accordance with
Section 6.1.

            5.3 FAIR MARKET VALUE LIMITATION. To the extent that options
designated as Incentive Stock Options (granted under all stock option plans of
the Participating Company Group, including the Plan) become exercisable by an
Optionee for the first time during any calendar year for stock having a Fair
Market Value greater than One Hundred Thousand Dollars ($100,000), the portion
of such options which exceeds such amount shall be treated as Nonstatutory Stock
Options. For purposes of this Section 5.3, options designated as Incentive Stock
Options shall be taken into account in the order in which they were granted, and
the Fair Market Value of stock shall be determined as of the time the option
with respect to such stock is granted. If the Code is amended to provide for a
different limitation from that set forth in this Section 5.3, such different
limitation shall be deemed incorporated herein effective as of the date

                                       6
<PAGE>   7

and with respect to such Options as required or permitted by such amendment to
the Code. If an Option is treated as an Incentive Stock Option in part and as a
Nonstatutory Stock Option in part by reason of the limitation set forth in this
Section 5.3, the Optionee may designate which portion of such Option the
Optionee is exercising. In the absence of such designation, the Optionee shall
be deemed to have exercised the Incentive Stock Option portion of the Option
first. Separate certificates representing each such portion shall be issued upon
the exercise of the Option.

        6. TERMS AND CONDITIONS OF OPTIONS.

        Options shall be evidenced by Option Agreements specifying the number of
shares of Stock covered thereby, in such form as the Board shall from time to
time establish. No Option or purported Option shall be a valid and binding
obligation of the Company unless evidenced by a fully executed Option Agreement.
Option Agreements may incorporate all or any of the terms of the Plan by
reference and shall comply with and be subject to the following terms and
conditions

            6.1 EXERCISE PRICE. The exercise price for each Option shall be
established in the sole discretion of the Board; provided, however, that (a)
the exercise price per share for an Incentive Stock Option shall be not less
than the Fair Market Value of a share of Stock on the effective date of grant of
the Option, (b) the exercise price per share for a Nonstatutory Stock Option
shall be not less than eighty-five percent (85%) of the Fair Market Value of a
share of Stock on the effective date of grant of the Option, and (c) no Option
granted to a Ten Percent Owner Optionee shall have an exercise price per share
less than one hundred ten percent (110%) of the Fair Market Value of a share of
Stock on the effective date of grant of the Option. Notwithstanding the
foregoing, an Option (whether an Incentive Stock Option or a Nonstatutory Stock
Option) may be granted with an exercise price lower than the minimum exercise
price set forth above if such Option is granted pursuant to an assumption or
substitution for another option in a manner qualifying under the provisions of
Section 424(a)-of the Code.

            6.2 EXERCISE PERIOD. Options shall be exercisable at such time or
times, or upon such event or events, and subject to such terms, conditions,
performance criteria, and restrictions as shall be determined by the Board and
set forth in the Option Agreement evidencing such Option; provided, however,
that (a) no Option shall be exercisable after the expiration of ten (10) years
after the effective date of grant of such Option, (b) no Incentive Stock Option
granted to a Ten Percent Owner Optionee shall be exercisable after the
expiration of five (5) years after the effective date of grant of such Option,
(c) no Option granted to a prospective Employee, prospective Consultant or
prospective Director may become exercisable prior to the date on which such
person commences Service with a Participating Company, and (d) with the
exception of an Option granted to an officer, Director or Consultant, no Option
shall become exercisable at a rate less than twenty percent (20%) per year over
a period of five (5) years from the effective date of grant of such Option,
subject to the Optionee's continued Service. Subject to the foregoing, unless
otherwise specified by the Board in the grant of an Option, any Option granted
hereunder shall have a term of ten (10) years from the effective date of grant
of the Option.


                                       7
<PAGE>   8


PAYMENT OF EXERCISE PRICE

                (a) FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the exercise price for the number of shares of Stock
being purchased pursuant to any Option shall be made (i) in cash, by check, or
cash equivalent, (ii) by tender to the Company of shares of Stock owned by the
Optionee having a Fair Market Value (as determined by the Company without regard
to any restrictions on transferability applicable to such stock reason of
federal or state securities laws or agreements with an underwriter for the
Company) not less than the exercise price, (iii) by the assignment of the
proceeds of a sale or loan with respect to some or all of the shares being
acquired upon the exercise of the Option (including, without limitation, through
an exercise complying with the provisions of Regulation T as promulgated from
time to time by the Board of Governors of the Federal Reserve System)
(a "CASHLESS EXERCISE"), (iv) by the Optionee's promissory note in a form
approved by the Company, (v) by such other consideration as may be approved by
the Board from time to time to the extent permitted by applicable law, or (vi)
by any combination thereof. The Board may at any time or from time to time, by
adoption of or by amendment to the standard forms of Option Agreement described
in Section 7, or by other means, grant Options which do not permit all of the
foregoing forms of consideration to be used in payment of the exercise price or
which otherwise restrict one or more forms of consideration.

                (b) TENDER OF STOCK. Notwithstanding the foregoing, an Option
may not be exercised by tender to the Company of shares of Stock to the extent
such tender of Stock would constitute a violation of the provisions of any law,
regulation or agreement restricting the redemption of the Company's stock.
Unless otherwise provided by the Board, an Option may not be exercised by tender
to the Company of shares of Stock unless such shares either have been owned by
the Optionee for more than six (6) months or were not acquired, directly or
indirectly, from the Company.

                (c) CASHLESS EXERCISE. The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to establish,
decline to approve or terminate any program or procedures for the exercise of
Options by means of a Cashless Exercise.

                (d) PAYMENT BY PROMISSORY NOTE. No promissory note shall be
permitted if the exercise of an Option using a promissory note would be a
violation of any law. Any permitted promissory note shall be on such terms as
the Board shall determine at the time the Option is granted. The Board shall
have the authority to permit or require the Optionee to secure any promissory
note used to exercise an Option with the shares of Stock acquired upon the
exercise of the Option or with other collateral acceptable to the Company.
Unless otherwise provided by the Board, if the Company at any time is subject to
the regulations promulgated by the Board of Governors of the Federal Reserve
System or any other governmental entity affecting the extension of credit in
connection with the Company's securities, any promissory note shall comply with
such applicable regulations, and the Optionee shall pay the unpaid principal and
accrued interest, if any, to the Went necessary to comply with such applicable
regulations.


                                       8
<PAGE>   9

            6.3 TAX WITHHOLDING. The Company shall have the right, but not the
obligation, to deduct from the shares of Stock issuable upon the exercise of an
Option, or to accept from the Optionee the tender of, a number of whole shares
of Stock having a Fair Market Value, as determined by the Company, equal to all
or any part of the federal, state, local and foreign taxes, if any, required by
law to be withheld by the Participating Company Group with respect to such
Option or the shares acquired upon the exercise thereof. Alternatively or in
addition, in its sole discretion, the Company shall have the right to require
the Optionee, through payroll withholding, cash payment or otherwise, including
by means of a Cashless Exercise, to make adequate provision for any such tax
withholding. obligations of the Participating Company Group arising in
connection with the Option or the shares acquired upon the exercise thereof The
Company shall have no obligation to deliver shares of Stock or to release shares
of Stock from an escrow established pursuant to the Option Agreement until the
Participating Company Group's tax withholding obligations have been satisfied by
the Optionee.

            6.4 REPURCHASE RIGHTS. Shares issued under the Plan may be subject
to a right of first refusal, one or more repurchase options, or other conditions
and restrictions as determined by the Board in its sole discretion at the time
the Option is granted. The Company shall have the right to assign at any time
any repurchase right it may have, whether or not such right is then exercisable,
to one or more persons as may be selected by the Company. Upon request by the
Company, each Optionee shall execute any agreement evidencing such transfer
restrictions prior to the receipt of shares of Stock hereunder and shall
promptly present to the Company any and all certificates representing shares of
Stock acquired hereunder for the placement on such certificates of appropriate
legends evidencing any such transfer restrictions.

            6.5 EFFECT OF TERMINATION OF SERVICE.

                (a) OPTION EXERCISABILITY. Subject to earlier termination of the
Option as otherwise provided herein, an Option shall be exercisable after an
Optionee's termination of Service as follows:

                    (i) DISABILITY. If the Optionee's Service with the
Participating Company Group is terminated because of the Disability of the
Optionee, the Option, to the extent unexercised and exercisable on the date on
which the Optionee's Service terminated, may be exercised by the Optionee (or
the Optionee's guardian or legal representative) at any time prior to the
expiration of six (6) months (or such longer period of time as determined by the
Board, in its sole discretion) after the date on which the Optionee's Service
terminated, but in any event no later than the date of expiration of the
Option's term as set forth in the Option Agreement evidencing such Option (the
"OPTION EXPIRATION DATE").

                    (ii) DEATH. If the Optionee's Service with the Participating
Company Group is terminated because of the death of the Optionee, the Option, to
the extent unexercised and exercisable on the date on which the Optionee's
Service terminated, may be exercised by the Optionee's legal representative or
other person who acquired the right to exercise the Option by reason of the
Optionee's death at any time prior to the expiration of six (6) months (or such
longer period of time as determined by the Board, in its sole discretion) after
the date an which the Optionee's Service terminated, but in any event no later
than the Option


                                       9
<PAGE>   10

Expiration Date. The Optionee's Service shall be deemed to have terminated on
account of death if the Optionee dies within one (1) month after the Optionee's
termination of Service.

                    (iii) OTHER TERMINATION OF SERVICE. If the Optionee's
Service with the Participating Company Group terminates for any reason, except
Disability or death, the Option, to the extent unexercised and exercisable by
the Optionee on the date on which the Optionee's Service terminated, may be
exercised by the Optionee within one (1) month (or such longer period of time as
determined by the Board, in its sole discretion) after the date on which the
Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

                (b) EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the
foregoing, if the exercise of an Option within the applicable time periods set
forth in Section 6.6(a) is prevented by the provisions of Section 11 below, the
Option shall remain exercisable until one (1) month after the date the Optionee
is notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.

                (c) EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b).
Notwithstanding the foregoing, if a sale within the applicable time periods set
forth in Section 6.6(a) of shares acquired upon the exercise of the Option would
subject the Optionee to suit under Section 16 (a) of the Exchange Act, the
Option shall remain exercisable until the earliest to occur of (i) the tenth
(10th) day following the date on which a sale of such shares by the Optionee
would no longer be subject to such suit, (ii) the one hundred and ninetieth
(190th) day after the Optionee's termination of Service, or (iii) the Option
Expiration Date.

        7. STANDARD FORMS OF OPTION AGREEMENT.

            7.1 INCENTIVE STOCK OPTIONS. Unless otherwise provided by the Board
at the time the Option is granted, an Option designated as an "INCENTIVE STOCK
OPTION" shall comply with and be subject to the terms and conditions set forth
in the form of Incentive Stock Option Agreement adopted by the Board
concurrently with its adoption of the Plan and as amended from time to time.

            7.2 NONSTATUTORY STOCK OPTIONS. Unless otherwise provided by the
Board at the time the Option is granted, an Option designated as a "NONSTATUTORY
STOCK OPTION" shall comply with and be subject to the terms and conditions set
forth in the form of Nonstatutory Stock Option Agreement adopted by the Board
concurrently with its adoption of the Plan and as amended from time to time.

            7.3 AUTHORITY TO VARY TERMS. The Board shall have the authority from
time to time to vary the terms of any of the standard forms of Option Agreement
described in this Section 7 either in connection with the grant or amendment of
an individual Option or in connection with the authorization of a new standard
form or forms- provided, however, that the terms and conditions of any such new,
revised or amended standard form or forms of Option Agreement shall be in
accordance with the terms of the Plan.

        8. CHANGE IN CONTROL.

            8.1 Definitions.


                                       10
<PAGE>   11

                (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred
if any of the following occurs with respect to the Company:

                    (i) the direct or indirect sale or exchange in a single or
series of related transactions by the shareholders of the Company of more than
fifty percent (50%) of the voting stock of the Company;

                    (ii) a merger or consolidation in which the Company is a
party;

                    (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                    (iv) a liquidation or dissolution of the Company.

                (b) A "CHANGE IN CONTROL" shall mean an Ownership Change Event
or a series of related Ownership Change Events (collectively, the "Transaction")
wherein the shareholders of the Company immediately before the Transaction do
not retain immediately after the Transaction, in substantially the same
proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "Transferee
Corporation(s)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final
binding and conclusive.

            8.2 EFFECT OF CHANGE IN CONTROL ON OPTIONS. In the event of a Change
in Control the surviving, continuing, successor, or purchasing corporation or
parent corporation thereof, as the case may be (the "ACQUIRING CORPORATION"),
may either assume the Company's rights and obligations under outstanding Options
or substitute for outstanding Options substantially equivalent options for the
Acquiring Corporation's stock. For purposes of this Section 8.2, an Option shall
be deemed assumed if, following the Change in Control, the Option confers the
right to purchase in accordance with its terms and conditions, for each share of
Stock subject to the Option immediately prior to the Change in Control, the
consideration (whether stock, cash or other securities or property) to which a
holder of a share of Stock on the effective date of the Change in Control was
entitled. Any Options which are neither assumed or substituted for by the
Acquiring Corporation in connection with the Change in Control nor exercised as
of the date of the Change in Control shall terminate and cease to be outstanding
effective as of the date of the Change in Control. Notwithstanding the
foregoing, shares acquired upon exercise of an Option prior to the Change in
Control and any consideration received pursuant to the Change in Control with
respect to such shares shall continue to be subject to all applicable provisions
of the Option Agreement evidencing such Option except as otherwise provided in
such Option Agreement. Furthermore, notwithstanding the foregoing, if the

                                       11
<PAGE>   12

corporation the stock of which is subject to the outstanding Options immediately
prior to an Ownership Change Event described in Section 8. 1 (a)(i) constituting
a Change in Control is the surviving or continuing corporation and immediately
after such Ownership Change Event less than fifty percent (50%) of the total
combined voting power of its voting stock is held by another corporation or by
other corporations that are members of an affiliated group within the meaning of
Section 1504(a) of the Code without regard to the provisions of Section 1504(b)
of the Code, the outstanding Options shall not terminate unless the Board
otherwise provides in its sole discretion.

        9. PROVISION OF INFORMATION.

        At least annually, copies of the Company's balance sheet and income
statement for the just completed fiscal year shall be made available to each
Optionee and purchaser of shares of Stock upon the exercise of an Option. The
Company shall not be required to provide such information to persons whose
duties in connection with the Company assure them access to equivalent
information.

        10. NONTRANSFERABILITY OF OPTIONS.

        During the lifetime of the Optionee, an Option shall be exercisable only
by the Optionee or the Optionee's guardian or legal representative. No Option
shall be assignable or transferable by the Optionee, except by will or by the
laws of descent and distribution.

        11. COMPLIANCE WITH SECURITIES LAW.

        The grant of Options and the issuance of shares of Stock upon exercise
of Options shall be subject to compliance with all applicable requirements of
federal, state and foreign law with respect to such securities. Options may not
be exercised if the issuance of shares of Stock upon exercise would constitute a
violation of any applicable federal, state or foreign securities laws or other
law or regulations or the requirements of any stock exchange or market system
upon which the Stock may then be listed. In addition, no Option may be exercised
unless (a) a registration statement under the Securities Act shall at the time
of exercise of the Option be in effect with respect to the shares issuable upon
exercise of the Option or (b) in the opinion of legal counsel to the Company,
the shares issuable upon exercise of the Option may be issued in accordance with
the terms of an applicable exemption from the registration requirements of the
Securities Act. The inability of the Company to obtain from any regulatory body
having jurisdiction the authority, if any, deemed by the Company's legal counsel
to be necessary to the lawful issuance and sale of any shares hereunder shall
relieve the Company of any liability in respect of the failure to issue or sell
such shares as to which such requisite authority shall not have been obtained.
As a condition to the exercise of any Option, the Company may require the
Optionee to satisfy any qualifications that may be necessary or appropriate, to
evidence compliance with any applicable law or regulation and to make any
representation or warranty with respect thereto as may be requested by the
Company.

        12. INDEMNIFICATION.

                                       12
<PAGE>   13
        In addition to such other rights of indemnification as they may have as
members of the Board or officers or employees of the Participating Company
Group, members of the Board and any officers or employees of the Participating
Company Group to whom authority to act for the Board or the Company is delegated
shall be indemnified by the Company against all reasonable expenses, including
attorney's fees, actually and necessarily incurred in connection with the
defense of any action, suit or proceeding, or in connection with any appeal
therein, to which they or any of them may be a party by reason of any action
taken or failure to act under or in connection with the Plan, or any right
granted hereunder, and against all amounts paid by them in settlement thereof
(provided such settlement is approved by independent legal counsel selected by
the Company) or paid by them in satisfaction of a judgment in any such action,
suit or proceeding, except in relation to matters as to which it shall be
adjudged in such action, suit or proceeding that such person is liable for gross
negligence, bad faith or intentional misconduct in duties; provided, however,
that within sixty (60) days after the institution of such action, suit or
proceeding, such person shall offer to the Company, in writing, the opportunity
at its own expense to handle and defend the same.

        13. TERMINATION OR AMENDMENT OF PLAN.

        The Board may terminate or amend the Plan at any time. However, subject
to changes in applicable law, regulations or rules that would permit otherwise,
without the approval of the Company's shareholders, there shall be (a) no
increase in the maximum aggregate number of shares of Stock that may be issued
under the Plan (except by operation of the provisions of Section 4.2), (b) no
change in the class of persons eligible to receive Incentive Stock Options, and
(c) no other amendment of the Plan that would require approval of the Company's
shareholders under any applicable law, regulation or rule. In any event, no
termination or amendment of the Plan may adversely affect any then outstanding
Option or any unexercised portion thereof, without the consent of the Optionee,
unless such termination or amendment is required to enable an Option designated
as an Incentive Stock Option to qualify as an Incentive Stock Option or is
necessary to comply with any applicable law, regulation or rule.

        14. SHAREHOLDER APPROVAL.

        The Plan or any increase in the maximum number of shares of Stock
issuable thereunder as provided in Section 4.1 (the "Maximum Shares") shall be
approved by the shareholders of the Company within twelve (12) months of the
date of adoption thereof by the Board. Options granted prior to shareholder
approval of the Plan or in excess of the Maximum Shares previously approved by
the shareholders shall become exercisable no earlier than the date of
shareholder approval of the Plan or such increase in the Maximum Shares, as the
case may be.

        IN WITNESS WHEREOF, the undersigned Secretary of the Company certifies
that the foregoing., Inc. 1997 Stock Option Plan was duly adopted by the Board
on October 31, 1997.


                                       13
<PAGE>   14


                                  PLAN HISTORY

    October 31, 1997         Board adopts Plan, with an initial reserve of
                             2,500,000 shares.

    October 31, 1997         Shareholders approve Plan, with an initial reserve
                             of 2,500,000 shares

<PAGE>   1
                                                                    EXHIBIT 99.2


THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE NOT BEEN QUALIFIED
WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA AND THE
ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY PART OF THE
CONSIDERATION THEREFOR PRIOR TO SUCH QUALIFICATION IS UNLAWFUL, UNLESS THE SALE
OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION 25100, 25102, OR 25105 OF
THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL PARTIES TO THIS AGREEMENT
ARE EXPRESSLY CONDITIONED UPON SUCH QUALIFICATION BEING OBTAINED, UNLESS THE
SALE IS SO EXEMPT.

THE SECURITY REPRESENTED BY THIS CERTIFICATE HAS BEEN ACQUIRED FOR INVESTMENT
AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF.
NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION
STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933.

                                  V-BITS, INC.
                             IMMEDIATELY EXERCISABLE
                       NONSTATUTORY STOCK OPTION AGREEMENT

        THIS IMMEDIATELY EXERCISABLE NONSTATUTORY STOCK OPTION AGREEMENT (the
"OPTION AGREEMENT") is made and entered into as of ________, 199_, by and
between V-Bits, Inc., a California corporation (the "COMPANY") and
______________ (the "OPTIONEE").

        The Company has granted to the Optionee pursuant to the V-Bits, Inc.
1997 Stock Option Plan (the "PLAN") an option to purchase certain shares of
Stock, upon the terms and conditions set forth in this Option Agreement (the
"OPTION"). The Option shall in all respects be subject to the terms and
conditions of the Plan, the provisions of which are incorporated herein by
reference.

        1. DEFINITIONS AND CONSTRUCTION.

            1.1 DEFINITIONS. Unless otherwise defined herein, capitalized terms
shall have the meanings assigned to such terms in the Plan. Whenever used
herein, the following terms shall have their respective meanings set forth
below:

                (a) "DATE OF OPTION GRANT" means _______________.

                (b) "NUMBER OF OPTION SHARES" means _______ shares of Stock, as
adjusted from time to time pursuant to Section 9.

                                       1
<PAGE>   2

                (c) "EXERCISE PRICE" means $0.XX per share of Stock, as
adjusted from time to time pursuant to Section 9.

                (d) "INITIAL EXERCISE DATE" means the later of the Date of
Option Grant or the date the Optionee's Service commences.

                (e) "INITIAL VESTING DATE" means the date occurring one (1) year
after (check one):

                    -      the Date of Option Grant.

                    -      XXXX, the date the Optionee's Service
                           commenced.

                (f) "VESTED RATIO" means, on any relevant date, the ratio
determined as follows:

<TABLE>
<CAPTION>
                                                                                Vested Ratio
<S>                                                                             <C>
               Prior to Initial Vesting Date                                           0

               On Initial Vesting Date, provided the Optionee's                      1/4
               Service has not terminated prior to such date

               Plus

               For each full month of the Optionee's                                 1/48
               continuous Service from the Initial
               Vesting Date until the Vested Ratio
               equals 1/1, an additional
</TABLE>

                (g) "OPTION EXPIRATION DATE" means the date ten (10) years after
the Date of Option Grant.

                (h) "SERVICE" means the Optionee's employment or service with
the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. Furthermore,
the Optionee's Service with the Participating Company Group shall not be deemed
to have terminated if the Optionee takes any military leave, sick leave, or
other bona fide leave of absence approved by the Company; provided, however,
that if any such leave exceeds ninety (90) days, on the ninety-first (91st) day
of such leave the Optionee's Service shall be deemed to have terminated unless
the Optionee's right to return to Service with the Participating Company Group
is guaranteed by statute or contract. Notwithstanding the foregoing, unless
otherwise designated by the Company or required by law, a leave of absence shall
not be treated as Service

                                       2
<PAGE>   3

for purposes of determining the Optionee's Vested Ratio. The Optionee's Service
shall be deemed to have terminated either upon an actual termination of Service
or upon the corporation for which the Optionee performs Service ceasing to be a
Participating Company. Subject to the foregoing, the Company, in its sole
discretion, shall determine whether the Optionee's Service has terminated and
the effective date of such termination. NOTE: If the Option is exercised more
than three (3) months after the date on which the Optionee ceased to be an
Employee (other than by reason of death or permanent and total disability as
defined in Section 22(e)(3) of the Code), the Option will be treated as a
Nonstatutory Stock Option and not as an Incentive Stock Option to the extent
required by Section 422 of the Code.)

            1.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement. Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular. Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

        2. TAX CONSEQUENCES.

            2.1 TAX STATUS OF OPTION. This Option is intended to be an
Incentive Stock Option within the meaning of Section 422(b) of the Code, but the
Company does not represent or warrant that this Option qualifies as such. The
Optionee should consult with the Optionee's own tax advisor regarding the tax
effects of this Option and the requirements necessary to obtain favorable
income tax treatment under Section 422 of the Code, including, but not limited
to, holding period requirements. (NOTE: If the aggregate Exercise Price of the
Option (that is, the Exercise Price multiplied by the Number of Option Shares)
plus the aggregate exercise price of any other Incentive Stock Options held by
the Optionee (whether granted pursuant to the Plan or any other stock option
plan of the Participating Company Group) is greater than One Hundred Thousand
Dollars ($100,000), the Optionee should contact the Chief Financial Officer of
the Company to ascertain whether the entire Option qualifies as an Incentive
Stock Option.)

            2.2 ELECTION UNDER SECTION 83(b) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk of forfeiture, the Optionee understands that
the Optionee should consult with the Optionee's tax advisor regarding the
advisability of filing with the Internal Revenue Service an election under
Section 83(b) of the Code, which must be filed no later than thirty (30) days
after the date on which the Optionee exercises the Option. Shares acquired upon
exercise of the Option are nontransferable and subject to a substantial risk of
forfeiture if, for example, (a) they are unvested and are subject to a right of
the Company to repurchase such shares at the Optionee's original purchase price
if the Optionee's Service terminates, (b) the Optionee is an Insider and, under
certain circumstances, exercises the Option within six (6) months of the Date of
Option Grant (if a class of equity security of the Company is registered under
Section 12 of the Exchange Act), or (c) the Optionee is subject to a restriction
on transfer to comply with "Pooling-of-Interests Accounting" rules. Failure to
file an election under Section 83(b), if appropriate, may result in adverse tax
consequences to the Optionee. The Optionee acknowledges that the Optionee has
been advised to consult with a tax advisor prior to the exercise of the Option
regarding the tax consequences to the Optionee of the exercise of the

                                       3
<PAGE>   4

Option. AN ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE
DATE ON WHICH THE OPTIONEE PURCHASES SHARES. THIS TIME PERIOD CANNOT BE
EXTENDED. THE OPTIONEE ACKNOWLEDGES THAT TIMELY FILING OF A SECTION 83(b)
ELECTION IS THE OPTIONEE'S SOLE RESPONSIBILITY, EVEN IF THE OPTIONEE REQUESTS
THE COMPANY OR ITS REPRESENTATIVE TO FILE SUCH ELECTION ON HIS OR HER BEHALF.

        3. ADMINISTRATION.

            All questions of interpretation concerning this Option Agreement
shall be determined by the Board. All determinations by the Board shall be final
and binding upon all persons having an interest in the Option. Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

        4. EXERCISE OF THE OPTION.

            4.1 RIGHT TO EXERCISE.

                (a) Except as otherwise provided herein, the Option shall be
exercisable on and after the Initial Exercise Date and prior to the termination
of the Option (as provided in Section 6) in an amount not to exceed the Number
of Option Shares less the number of shares previously acquired upon exercise of
the Option, subject to the Optionee's agreement that any shares purchased upon
exercise are subject to the Company's repurchase rights set forth in Section 11
and Section 12. Notwithstanding the foregoing, except as provided in Section
4.1(b), the aggregate Fair Market Value of the shares of Stock with respect to
which the Optionee may exercise the Option for the first time during any
calendar year, when added to the aggregate Fair Market Value of the shares
subject to any other options designated as Incentive Stock Options granted to
the Optionee under all stock option plans of the Participating Company Group
prior to the Date of Option Grant with respect to which such options are
exercisable for the first time during the same calendar year, shall not exceed
One Hundred Thousand Dollars ($100,000). For purposes of the preceding sentence,
options designated as Incentive Stock Options shall be taken into account in the
order in which they were granted, and the Fair Market Value of shares of stock
shall be determined as of the time the option with respect to such shares is
granted. Such limitation on exercise shall be referred to in this Option
Agreement as the "ISO EXERCISE LIMITATION." If Section 422 of the Code is
amended to provide for a different limitation from that set forth in this
Section 4.1(a), the ISO Exercise Limitation shall be deemed amended effective as
of the date required or permitted by such amendment to the Code. The ISO
Exercise Limitation shall terminate upon the earlier of (i) the Optionee's
termination of Service, (ii) the day immediately prior to the effective date of
a Change in Control in which the Option is not assumed or substituted for by the
Acquiring Corporation as provided in Section 8, or (iii) the day ten (10) days
prior to the Option Expiration Date. Upon such termination of the ISO Exercise
Limitation, the Option shall be deemed a Nonstatutory Stock Option to the extent
of the number of shares subject to the Option which would otherwise exceed the
ISO Exercise Limitation.


                                       4
<PAGE>   5

                (b) Notwithstanding any other provision of this Option
Agreement, if compliance with the ISO Exercise Limitation as set forth in
Section 4.1(a) will result in the exercisability of any Vested Shares (as
defined in Section 11.2) being delayed more than thirty (30) days beyond the
date such shares become Vested Shares (the "VESTING DATE"), the Option shall be
deemed to be two (2) options. The first option shall be for the maximum portion
of the Number of Option Shares that can comply with the ISO Exercise Limitation
without causing the Option to be unexercisable in the aggregate as to Vested
Shares on the Vesting Date for such shares. The second option, which shall not
be treated as an Incentive Stock Option as described in section 422(b) of the
Code, shall be for the balance of the Number of Option Shares; that is, those
such shares which, on the respective Vesting Date for such shares, would be
unexercisable if included in the first option and thereby made subject to the
ISO Exercise Limitation. Shares treated as subject to the second option shall be
exercisable on the same terms and at the same time as set forth in this Option
Agreement; provided, however, that (i) the second sentence of Section 4.1(a)
shall not apply to the second option and (ii) each such share shall become a
Vested Share on the Vesting Date such share must first be allocated to the
second option pursuant to the preceding sentence. Unless the Optionee
specifically elects to the contrary in the Optionee's written notice of
exercise, the first option shall be deemed to be exercised first to the maximum
possible extent and then the second option shall be deemed to be exercised.

            4.2 METHOD OF EXERCISE. Exercise of the Option shall be by written
notice to the Company which must state the election to exercise the Option, the
number of whole shares of Stock for which the Option is being exercised and such
other representations and agreements as to the Optionee's investment intent with
respect to such shares as may be required pursuant to the provisions of this
Option Agreement. The written notice must be signed by the Optionee and must be
delivered in person, by certified or registered mail, return receipt requested,
by confirmed facsimile transmission, or by such other means as the Company may
permit, to the Chief Financial Officer of the Company, or other authorized
representative of the Participating Company Group, prior to the termination of
the Option as set forth in Section 6, accompanied by (i) full payment of the
aggregate Exercise Price for the number of shares of Stock being purchased and
(ii) an executed copy, if required herein, of the then current form of escrow
agreement referenced below. The Option shall be deemed to be exercised upon
receipt by the Company of such written notice, the aggregate Exercise Price,
and, if required by the Company, such executed agreement.

            4.3 PAYMENT OF EXERCISE PRICE.

                (a) FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the aggregate Exercise Price for the number of shares
of Stock for which the Option is being exercised shall be made (i) in cash, by
check, or cash equivalent, (ii) by tender to the Company of whole shares of
Stock owned by the Optionee having a Fair Market Value (as determined by the
Company without regard to any restrictions on transferability applicable to such
stock by reason of federal or state securities laws or agreements with an
underwriter for the Company) not less than the aggregate Exercise Price, (iii)
by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by any
combination of the foregoing.

                                       5
<PAGE>   6

                (b) TENDER OF STOCK. Notwithstanding the foregoing, the Option
may not be exercised by tender to the Company of shares of Stock to the extent
such tender of Stock would constitute a violation of the provisions of any law,
regulation or agreement restricting the redemption of the Company's stock. The
Option may not be exercised by tender to the Company of shares of Stock unless
such shares either have been owned by the Optionee for more than six (6) months
or were not acquired, directly or indirectly, from the Company.

                (c) CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

            4.4 TAX WITHHOLDING. At the time the Option is exercised, in whole
or in part, or at any time thereafter as requested by the Company, the Optionee
hereby authorizes withholding from payroll and any other amounts payable to the
Optionee, and otherwise agrees to make adequate provision for (including by
means of a Cashless Exercise to the extent permitted by the Company), any sums
required to satisfy the federal, state, local and foreign tax withholding
obligations of the Participating Company Group, if any, which arise in
connection with the Option, including, without limitation, obligations arising
upon (i) the exercise, in whole or in part, of the Option, (ii) the transfer, in
whole or in part, of any shares acquired upon exercise of the Option, (iii) the
operation of any law or regulation providing for the imputation of interest, or
(iv) the lapsing of any restriction with respect to any shares acquired upon
exercise of the Option. The Optionee is cautioned that the Option is not
exercisable unless the tax withholding obligations of the Participating Company
Group are satisfied. Accordingly, the Optionee may not be able to exercise the
Option when desired even though the Option is vested, and the Company shall have
no obligation to issue a certificate for such shares or release such shares from
any escrow provided for herein.

            4.5 CERTIFICATE REGISTRATION. Except in the event the Exercise Price
is paid by means of a Cashless Exercise, the certificate for the shares as to
which the Option is exercised shall be registered in the name of the Optionee,
or, if applicable, in the names of the heirs of the Optionee.

            4.6 RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES. The
grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law or regulations or the requirements of any stock exchange or
market system upon which the Stock may then be listed. In addition, the Option
may not be exercised unless (i) a registration statement under the Securities
Act shall at the time of exercise of the Option be in effect with respect to the
shares issuable upon exercise of the Option or (ii) in the opinion of legal
counsel to

                                       6
<PAGE>   7

the Company, the shares issuable upon exercise of the Option may be issued in
accordance with the terms of an applicable exemption from the registration
requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT THE OPTION
MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED. ACCORDINGLY,
THE OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED EVEN THOUGH THE
OPTION IS VESTED. The inability of the Company to obtain from any regulatory
body having jurisdiction the authority, if any, deemed by the Company's legal
counsel to be necessary to the lawful issuance and sale of any shares subject to
the Option shall relieve the Company of any liability in respect of the failure
to issue or sell such shares as to which such requisite authority shall not have
been obtained. As a condition to the exercise of the Option, the Company may
require the Optionee to satisfy any qualifications that may be necessary or
appropriate, to evidence compliance with any applicable law or regulation and to
make any representation or warranty with respect thereto as may be requested by
the Company.

            4.7 FRACTIONAL SHARES. The Company shall not be required to issue
fractional shares upon the exercise of the Option.

        5. NONTRANSFERABILITY OF THE OPTION.

            The Option may be exercised during the lifetime of the Optionee only
by the Optionee or the Optionee's guardian or legal representative and may not
be assigned or transferred in any manner except by will or by the laws of
descent and distribution. Following the death of the Optionee, the Option, to
the extent provided in Section 7, may be exercised by the Optionee's legal
representative or by any person empowered to do so under the deceased Optionee's
will or under the then applicable laws of descent and distribution.

        6. TERMINATION OF THE OPTION.

            The Option shall terminate and may no longer be exercised on the
first to occur of (a) the Option Expiration Date, (b) the last date for
exercising the Option following termination of the Optionee's Service as
described in Section 7, or (c) a Change in Control to the extent provided in
Section 8.

        7. EFFECT OF TERMINATION OF SERVICE.

            7.1 OPTION EXERCISABILITY.

                (a) DISABILITY. If the Optionee's Service with the Participating
Company Group is terminated because of the Disability of the Optionee, the
Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee (or the
Optionee's guardian or legal representative) at any time prior to the expiration
of six (6) months after the date on which the Optionee's Service terminated, but
in any event no later than the Option Expiration Date. (NOTE: If the Option is
exercised more than three (3) months after the date on which the Optionee's
Service as an Employee terminated as a result of a Disability other than a
permanent and total disability as defined in Section 22(e)(3) of

                                       7
<PAGE>   8

the Code, the Option will be treated as a Nonstatutory Stock Option and not as
an Incentive Stock Option to the extent required by Section 422 of the Code.)

                (b) DEATH. If the Optionee's Service with the Participating
Company Group is terminated because of the death of the Optionee, the Option, to
the extent unexercised and exercisable on the date on which the Optionee's
Service terminated, may be exercised by the Optionee's legal representative or
other person who acquired the right to exercise the Option by reason of the
Optionee's death at any time prior to the expiration of six (6) months after the
date on which the Optionee's Service terminated, but in any event no later than
the Option Expiration Date. The Optionee's Service shall be deemed to have
terminated on account of death if the Optionee dies within one (1) month after
the Optionee's termination of Service.

                (c) OTHER TERMINATION OF SERVICE. If the Optionee's Service with
the Participating Company Group terminates for any reason, except Disability or
death, the Option, to the extent unexercised and exercisable by the Optionee on
the date on which the Optionee's Service terminated, may be exercised by the
Optionee within one (1) month (or such other longer period of time as determined
by the Board, in its sole discretion) after the date on which the Optionee's
Service terminated, but in any event no later than the Option Expiration Date.

            7.2 ADDITIONAL LIMITATIONS ON OPTION EXERCISE. Notwithstanding the
provisions of Section 7.1, the Option may not be exercised after the Optionee's
termination of Service to the extent that the shares to be acquired upon
exercise of the Option would be subject to the Unvested Share Repurchase Option
as provided in Section 11.

            7.3 EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until one (1) month after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date. The Company makes no representation as to
the tax consequences of any such delayed exercise. The Optionee should consult
with the Optionee's own tax advisor as to the tax consequences of any such
delayed exercise.

            7.4 EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b). Notwithstanding
the foregoing, if a sale within the applicable time periods set forth in Section
7.1 of shares acquired upon the exercise of the Option would subject the
Optionee to suit under Section 16(b) of the Exchange Act, the Option shall
remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date. The Company makes no representation as to the tax consequences of any such
delayed exercise. The Optionee should consult with the Optionee's own tax
advisor as to the tax consequences of any such delayed exercise.

                                       8
<PAGE>   9

        8. CHANGE IN CONTROL.

            8.1 DEFINITIONS.

                (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have occurred
if any of the following occurs with respect to the Company:

                    (i) the direct or indirect sale or exchange in a single or
series of related transactions by the shareholders of the Company of more than
fifty percent (50%) of the voting stock of the Company;

                    (ii) a merger or consolidation in which the Company is a
party; or

                    (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or

                    (iv) a liquidation or dissolution of the Company.

                (b) A "CHANGE IN CONTROL" shall mean an Ownership Change Event
or a series of related Ownership Change Events (collectively, the "TRANSACTION")
wherein the shareholders of the Company immediately before the Transaction do
not retain immediately after the Transaction, in substantially the same
proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

            8.2 EFFECT OF CHANGE IN CONTROL ON OPTION. In the event of a Change
in Control, the surviving, continuing, successor, or purchasing corporation or
parent corporation thereof, as the case may be (the "ACQUIRING CORPORATION"),
may either assume the Company's rights and obligations under the Option or
substitute for the Option a substantially equivalent option for the Acquiring
Corporation's stock. For purposes of this Section 8.2, the Option shall be
deemed assumed if, following the Change in Control, the Option confers the right
to purchase in accordance with its terms and conditions, for each share of Stock
subject to the Option immediately prior to the Change in Control, the
consideration (whether stock, cash or other securities or property) to which a
holder of a share of Stock on the effective date of the Change in Control was
entitled. The Option shall terminate and cease to be outstanding effective as of
the date of the Change in Control to the extent that the Option is neither
assumed or substituted for

                                       9
<PAGE>   10

by the Acquiring Corporation in connection with the Change in Control nor
exercised as of the date of the Change in Control. Notwithstanding the
foregoing, shares acquired upon exercise of the Option prior to the Change in
Control and any consideration received pursuant to the Change in Control with
respect to such shares shall continue to be subject to all applicable provisions
of this Option Agreement except as otherwise provided herein. Furthermore,
notwithstanding the foregoing, if the corporation the stock of which is subject
to the Option immediately prior to an Ownership Change Event described in
Section 8.1(a)(i) constituting a Change in Control is the surviving or
continuing corporation and immediately after such Ownership Change Event less
than fifty percent (50%) of the total combined voting power of its voting stock
is held by another corporation or by other corporations that are members of an
affiliated group within the meaning of Section 1504(a) of the Code without
regard to the provisions of Section 1504(b) of the Code, the Option shall not
terminate unless the Board otherwise provides in its sole discretion.



                                       10
<PAGE>   11

        9. ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.

            In the event of any stock dividend, stock split, reverse stock
split, recapitalization, combination, reclassification, or similar change in the
capital structure of the Company, appropriate adjustments shall be made in the
number, Exercise Price and class of shares of stock subject to the Option. If a
majority of the shares which are of the same class as the shares that are
subject to the Option are exchanged for, converted into, or otherwise become
(whether or not pursuant to an Ownership Change Event) shares of another
corporation (the "NEW SHARES"), the Board may unilaterally amend the Option to
provide that the Option is exercisable for New Shares. In the event of any such
amendment, the Number of Option Shares and the Exercise Price shall be adjusted
in a fair and equitable manner, as determined by the Board, in its sole
discretion. Notwithstanding the foregoing, any fractional share resulting from
an adjustment pursuant to this Section 9 shall be rounded up or down to the
nearest whole number, as determined by the Board, and in no event may the
Exercise Price be decreased to an amount less than the par value, if any, of the
stock subject to the Option. The adjustments determined by the Board pursuant to
this Section 9 shall be final, binding and conclusive.

        10. RIGHTS AS A SHAREHOLDER, EMPLOYEE OR CONSULTANT.

            The Optionee shall have no rights as a shareholder with respect to
any shares covered by the Option until the date of the issuance of a certificate
for the shares for which the Option has been exercised (as evidenced by the
appropriate entry on the books of the Company or of a duly authorized transfer
agent of the Company). No adjustment shall be made for dividends, distributions
or other rights for which the record date is prior to the date such certificate
is issued, except as provided in Section 9. If the Optionee is an Employee, the
Optionee understands and acknowledges that, except as otherwise provided in a
separate, written employment agreement between a Participating Company and the
Optionee, the Optionee's employment is "at will" and is for no specified term.
Nothing in this Option Agreement shall confer upon the Optionee any right to
continue in the Service of a Participating Company or interfere in any way with
any right of the Participating Company Group to terminate the Optionee's Service
as an Employee or Consultant, as the case may be, at any time.

        11. UNVESTED SHARE REPURCHASE OPTION.

            11.1 GRANT OF UNVESTED SHARE REPURCHASE OPTION. In the event the
Optionee's Service with the Participating Company Group is terminated for any
reason or no reason, with or without cause, or, if the Optionee, the Optionee's
legal representative, or other holder of shares acquired upon exercise of the
Option attempts to sell, exchange, transfer, pledge, or otherwise dispose of
(other than pursuant to an Ownership Change Event) any shares acquired upon
exercise of the Option which exceed the Vested Shares as defined in Section 11.2
below (the "UNVESTED SHARES"), the Company shall have the right to repurchase
the Unvested Shares under the terms and subject to the conditions set forth in
this Section 11 (the "UNVESTED SHARE REPURCHASE OPTION").

                                       11
<PAGE>   12

            11.2 VESTED SHARES AND UNVESTED SHARES DEFINED. The "VESTED SHARES"
shall mean, on any given date, a number of shares of Stock equal to the Number
of Option Shares multiplied by the Vested Ratio determined as of such date and
rounded down to the nearest whole share. On such given date, the "UNVESTED
SHARES" shall mean the number of shares of Stock acquired upon exercise of the
Option which exceed the Vested Shares determined as of such date.

            11.3 EXERCISE OF UNVESTED SHARE REPURCHASE OPTION. The Company may
exercise the Unvested Share Repurchase Option by written notice to the Optionee
within sixty (60) days after (a) termination of the Optionee's Service (or
exercise of the Option, if later) or (b) the Company has received notice of the
attempted disposition of Unvested Shares. If the Company fails to give notice
within such sixty (60) day period, the Unvested Share Repurchase Option shall
terminate unless the Company and the Optionee have extended the time for the
exercise of the Unvested Share Repurchase Option. The Unvested Share Repurchase
Option must be exercised, if at all, for all of the Unvested Shares, except as
the Company and the Optionee otherwise agree.

            11.4 PAYMENT FOR SHARES AND RETURN OF SHARES TO COMPANY. The
purchase price per share being repurchased by the Company shall be an amount
equal to the Optionee's original cost per share, as adjusted pursuant to Section
9 (the "REPURCHASE PRICE"). The Company shall pay the aggregate Repurchase Price
to the Optionee in cash within thirty (30) days after the date of the written
notice to the Optionee of the Company's exercise of the Unvested Share
Repurchase Option. For purposes of the foregoing, cancellation of any
indebtedness of the Optionee to any Participating Company shall be treated as
payment to the Optionee in cash to the extent of the unpaid principal and any
accrued interest canceled. The shares being repurchased shall be delivered to
the Company by the Optionee at the same time as the delivery of the Repurchase
Price to the Optionee.

            11.5 ASSIGNMENT OF UNVESTED SHARE REPURCHASE OPTION. The Company
shall have the right to assign the Unvested Share Repurchase Option at any time,
whether or not such option is then exercisable, to one or more persons as may be
selected by the Company.

            11.6 OWNERSHIP CHANGE EVENT. Upon the occurrence of an Ownership
Change Event, any and all new, substituted or additional securities or other
property to which the Optionee is entitled by reason of the Optionee's ownership
of Unvested Shares shall be immediately subject to the Unvested Share Repurchase
Option and included in the terms "Stock" and "Unvested Shares" for all purposes
of the Unvested Share Repurchase Option with the same force and effect as the
Unvested Shares immediately prior to the Ownership Change Event. While the
aggregate Repurchase Price shall remain the same after such Ownership Change
Event, the Repurchase Price per Unvested Share upon exercise of the Unvested
Share Repurchase Option following such Ownership Change Event shall be adjusted
as appropriate. For purposes of determining the Vested Ratio following an
Ownership Change Event, credited Service shall include all Service with any
corporation which is a Participating Company at the time the Service is
rendered, whether or not such corporation is a Participating Company both before
and after the Ownership Change Event.

                                       12
<PAGE>   13

        12. RIGHT OF FIRST REFUSAL.

            12.1 GRANT OF RIGHT OF FIRST REFUSAL. Except as provided in Section
12.7 below, in the event the Optionee, the Optionee's legal representative, or
other holder of shares acquired upon exercise of the Option proposes to sell,
exchange, transfer, pledge, or otherwise dispose of any Vested Shares (the
"TRANSFER SHARES") to any person or entity, including, without limitation, any
shareholder of the Participating Company Group, the Company shall have the right
to repurchase the Transfer Shares under the terms and subject to the conditions
set forth in this Section 12 (the "RIGHT OF FIRST REFUSAL").

            12.2 NOTICE OF PROPOSED TRANSFER. Prior to any proposed transfer of
the Transfer Shares, the Optionee shall deliver written notice (the "TRANSFER
NOTICE") to the Company describing fully the proposed transfer, including the
number of Transfer Shares, the name and address of the proposed transferee (the
"PROPOSED TRANSFEREE") and, if the transfer is voluntary, the proposed transfer
price, and containing such information necessary to show the bona fide nature of
the proposed transfer. In the event of a bona fide gift or involuntary transfer,
the proposed transfer price shall be deemed to be the Fair Market Value of the
Transfer Shares, as determined by the Board in good faith. If the Optionee
proposes to transfer any Transfer Shares to more than one Proposed Transferee,
the Optionee shall provide a separate Transfer Notice for the proposed transfer
to each Proposed Transferee. The Transfer Notice shall be signed by both the
Optionee and the Proposed Transferee and must constitute a binding commitment of
the Optionee and the Proposed Transferee for the transfer of the Transfer Shares
to the Proposed Transferee subject only to the Right of First Refusal.

            12.3 BONA FIDE TRANSFER. If the Company determines that the
information provided by the Optionee in the Transfer Notice is insufficient to
establish the bona fide nature of a proposed voluntary transfer, the Company
shall give the Optionee written notice of the Optionee's failure to comply with
the procedure described in this Section 12, and the Optionee shall have no right
to transfer the Transfer Shares without first complying with the procedure
described in this Section 12. The Optionee shall not be permitted to transfer
the Transfer Shares if the proposed transfer is not bona fide.

            12.4 EXERCISE OF RIGHT OF FIRST REFUSAL. If the Company determines
the proposed transfer to be bona fide, the Company shall have the right to
purchase all, but not less than all, of the Transfer Shares (except as the
Company and the Optionee otherwise agree) at the purchase price and on the terms
set forth in the Transfer Notice by delivery to the Optionee of a notice of
exercise of the Right of First Refusal within thirty (30) days after the date
the Transfer Notice is delivered to the Company. The Company's exercise or
failure to exercise the Right of First Refusal with respect to any proposed
transfer described in a Transfer Notice shall not affect the Company's right to
exercise the Right of First Refusal with respect to any proposed transfer
described in any other Transfer Notice, whether or not such other Transfer
Notice is issued by the Optionee or issued by a person other than the Optionee
with respect to a proposed transfer to the same Proposed Transferee. If the
Company exercises the Right of First Refusal, the Company and the Optionee shall
thereupon consummate the sale of the Transfer Shares to the Company on the terms
set forth in the Transfer Notice within sixty (60) days after the date the
Transfer Notice is delivered to the Company (unless a longer period is offered
by the Proposed Transferee);

                                       13
<PAGE>   14

provided, however, that in the event the Transfer Notice provides for the
payment for the Transfer Shares other than in cash, the Company shall have the
option of paying for the Transfer Shares by the present value cash equivalent of
the consideration described in the Transfer Notice as reasonably determined by
the Company. For purposes of the foregoing, cancellation of any indebtedness of
the Optionee to any Participating Company shall be treated as payment to the
Optionee in cash to the extent of the unpaid principal and any accrued interest
canceled.

            12.5 FAILURE TO EXERCISE RIGHT OF FIRST REFUSAL. If the Company
fails to exercise the Right of First Refusal in full (or to such lesser extent
as the Company and the Optionee otherwise agree) within the period specified in
Section 12.4 above, the Optionee may conclude a transfer to the Proposed
Transferee of the Transfer Shares on the terms and conditions described in the
Transfer Notice, provided such transfer occurs not later than ninety (90) days
following delivery to the Company of the Transfer Notice. The Company shall have
the right to demand further assurances from the Optionee and the Proposed
Transferee (in a form satisfactory to the Company) that the transfer of the
Transfer Shares was actually carried out on the terms and conditions described
in the Transfer Notice. No Transfer Shares shall be transferred on the books of
the Company until the Company has received such assurances, if so demanded, and
has approved the proposed transfer as bona fide. Any proposed transfer on terms
and conditions different from those described in the Transfer Notice, as well as
any subsequent proposed transfer by the Optionee, shall again be subject to the
Right of First Refusal and shall require compliance by the Optionee with the
procedure described in this Section 12.

            12.6 TRANSFEREES OF TRANSFER SHARES. All transferees of the Transfer
Shares or any interest therein, other than the Company, shall be required as a
condition of such transfer to agree in writing (in a form satisfactory to the
Company) that such transferee shall receive and hold such Transfer Shares or
interest therein subject to all of the terms and conditions of this Option
Agreement, including this Section 12 providing for the Right of First Refusal
with respect to any subsequent transfer. Any sale or transfer of any shares
acquired upon exercise of the Option shall be void unless the provisions of this
Section 12 are met.

            12.7 TRANSFERS NOT SUBJECT TO RIGHT OF FIRST REFUSAL. The Right of
First Refusal shall not apply to any transfer or exchange of the shares acquired
upon exercise of the Option if such transfer or exchange is in connection with
an Ownership Change Event. If the consideration received pursuant to such
transfer or exchange consists of stock of a Participating Company, such
consideration shall remain subject to the Right of First Refusal unless the
provisions of Section 12.9 below result in a termination of the Right of First
Refusal.

            12.8 ASSIGNMENT OF RIGHT OF FIRST REFUSAL. The Company shall have
the right to assign the Right of First Refusal at any time, whether or not there
has been an attempted transfer, to one or more persons as may be selected by the
Company.

            12.9 EARLY TERMINATION OF RIGHT OF FIRST REFUSAL. The other
provisions of this Option Agreement notwithstanding, the Right of First Refusal
shall terminate and be of no further force and effect upon (a) the occurrence of
a Change in Control, unless the Acquiring Corporation assumes the Company's
rights and obligations under the Option or substitutes a substantially
equivalent option for the Acquiring Corporation's stock for the Option, or (b)
the

                                       14
<PAGE>   15

existence of a public market for the class of shares subject to the Right of
First Refusal. A "PUBLIC MARKET" shall be deemed to exist if (i) such stock is
listed on a national securities exchange (as that term is used in the Exchange
Act) or (ii) such stock is traded on the over-the-counter market and prices
therefor are published daily on business days in a recognized financial journal.

        13. ESCROW.

            13.1 ESTABLISHMENT OF ESCROW. To ensure that shares subject to the
Unvested Share Repurchase Option will be available for repurchase, the Company
may require the Optionee to deposit the certificate evidencing the shares which
the Optionee purchases upon exercise of the Option with an agent designated by
the Company under the terms and conditions of an escrow agreement approved by
the Company. If the Company does not require such deposit as a condition of
exercise of the Option, the Company reserves the right at any time to require
the Optionee to so deposit the certificate in escrow. Upon the occurrence of an
Ownership Change Event or a change, as described in Section 9, in the character
or amount of any of the outstanding stock of the corporation the stock of which
is subject to the provisions of this Option Agreement, any and all new,
substituted or additional securities or other property to which the Optionee is
entitled by reason of the Optionee's ownership of shares of Stock acquired upon
exercise of the Option that remain, following such Ownership Change Event or
change described in Section 9, subject to the Unvested Share Repurchase Option
shall be immediately subject to the escrow to the same extent as such shares of
Stock immediately before such event. The Company shall bear the expenses of the
escrow.

            13.2 DELIVERY OF SHARES TO OPTIONEE. As soon as practicable after
the expiration of the Unvested Share Repurchase Option, but not more frequently
than twice each calendar year, the escrow agent shall deliver to the Optionee
the shares and any other property no longer subject to such restriction.

            13.3 NOTICES AND PAYMENTS. In the event the shares and any other
property held in escrow are subject to the Company's exercise of the Unvested
Share Repurchase Option or the Right of First Refusal, the notices required to
be given to the Optionee shall be given to the escrow agent, and any payment
required to be given to the Optionee shall be given to the escrow agent. Within
thirty (30) days after payment by the Company, the escrow agent shall deliver
the shares and any other property which the Company has purchased to the Company
and shall deliver the payment received from the Company to the Optionee.

        14. STOCK DISTRIBUTIONS SUBJECT TO OPTION AGREEMENT.

            If, from time to time, there is any stock dividend, stock split or
other change, as described in Section 9, in the character or amount of any of
the outstanding stock of the corporation the stock of which is subject to the
provisions of this Option Agreement, then in such event any and all new,
substituted or additional securities to which the Optionee is entitled by reason
of the Optionee's ownership of the shares acquired upon exercise of the Option
shall be immediately subject to the Unvested Share Repurchase Option and the
Right of First Refusal

                                       15
<PAGE>   16

with the same force and effect as the shares subject to the Unvested Share
Repurchase Option and the Right of First Refusal immediately before such event.

        15. NOTICE OF SALES UPON DISQUALIFYING DISPOSITION.

            The Optionee shall dispose of the shares acquired pursuant to the
Option only in accordance with the provisions of this Option Agreement. In
addition, the Optionee shall promptly notify the Chief Financial Officer of the
Company if the Optionee disposes of any of the shares acquired pursuant to the
Option within one (1) year after the date of the Optionee exercises all or part
of the Option or within two (2) years after the Date of Option Grant. Until such
time as the Optionee disposes of such shares in a manner consistent with the
provisions of this Option Agreement, unless otherwise expressly authorized by
the Company, the Optionee shall hold all shares acquired pursuant to the Option
in the Optionee's name (and not in the name of any nominee) for the one-year
period immediately after the exercise of the Option and the two-year period
immediately after Date of Option Grant. At any time during the one-year or
two-year periods set forth above, the Company may place a legend on any
certificate representing shares acquired pursuant to the Option requesting the
transfer agent for the Company's stock to notify the Company of any such
transfers. The obligation of the Optionee to notify the Company of any such
transfer shall continue notwithstanding that a legend has been placed on the
certificate pursuant to the preceding sentence.

        16. LEGENDS.

            The Company may at any time place legends referencing the Unvested
Share Repurchase Option, the Right of First Refusal, and any applicable federal,
state or foreign securities law restrictions on all certificates representing
shares of stock subject to the provisions of this Option Agreement. The Optionee
shall, at the request of the Company, promptly present to the Company any and
all certificates representing shares acquired pursuant to the Option in the
possession of the Optionee in order to carry out the provisions of this Section.
Unless otherwise specified by the Company, legends placed on such certificates
may include, but shall not be limited to, the following:

            16.1 "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD,
TRANSFERRED, ASSIGNED OR HYPOTHECATED UNLESS THERE IS AN EFFECTIVE REGISTRATION
STATEMENT UNDER SUCH ACT COVERING SUCH SECURITIES, THE SALE IS MADE IN
ACCORDANCE WITH RULE 144 OR RULE 701 UNDER THE ACT, OR THE COMPANY RECEIVES AN
OPINION OF COUNSEL FOR THE HOLDER OF THESE SECURITIES REASONABLY SATISFACTORY TO
THE COMPANY, STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION IS
EXEMPT FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH ACT."

            16.2 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO AN
UNVESTED SHARE REPURCHASE OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE SET
FORTH IN AN AGREEMENT BETWEEN THE

                                       16
<PAGE>   17

CORPORATION AND THE REGISTERED HOLDER, OR SUCH HOLDER'S PREDECESSOR IN INTEREST,
A COPY OF WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THIS CORPORATION."

            16.3 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A
RIGHT OF FIRST REFUSAL OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE SET
FORTH IN AN AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER, OR SUCH
HOLDER'S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL
OFFICE OF THIS CORPORATION."

            16.4 "THE SHARES EVIDENCED BY THIS CERTIFICATE WERE ISSUED BY THE
CORPORATION TO THE REGISTERED HOLDER UPON EXERCISE OF AN INCENTIVE STOCK OPTION
AS DEFINED IN SECTION 422 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED
("ISO"). IN ORDER TO OBTAIN THE PREFERENTIAL TAX TREATMENT AFFORDED TO ISOs,
THE SHARES SHOULD NOT BE TRANSFERRED PRIOR TO SEPTEMBER 10, 2000. SHOULD THE
REGISTERED HOLDER ELECT TO TRANSFER ANY OF THE SHARES PRIOR TO THIS DATE AND
FOREGO ISO TAX TREATMENT, THE TRANSFER AGENT FOR THE SHARES SHALL NOTIFY THE
CORPORATION IMMEDIATELY. THE REGISTERED HOLDER SHALL HOLD ALL SHARES PURCHASED
UNDER THE INCENTIVE STOCK OPTION IN THE REGISTERED HOLDER'S NAME (AND NOT IN THE
NAME OF ANY NOMINEE) PRIOR TO THIS DATE OR UNTIL TRANSFERRED AS DESCRIBED
ABOVE."

        17. PUBLIC OFFERING.

            The Optionee hereby agrees that in the event of any underwritten
public offering of stock, including an initial public offering of stock, made by
the Company pursuant to an effective registration statement filed under the
Securities Act, the Optionee shall not offer, sell, contract to sell, pledge,
hypothecate, grant any option to purchase or make any short sale of, or
otherwise dispose of any shares of stock of the Company or any rights to acquire
stock of the Company for such period of time from and after the effective date
of such registration statement as may be established by the underwriter for such
public offering; provided, however, that such period of time shall not exceed
one hundred eighty (180) days from the effective date of the registration
statement to be filed in connection with such public offering. The foregoing
limitation shall not apply to shares registered in the public offering under the
Securities Act. The Optionee shall be subject to this Section provided and only
if the officers and directors of the Company are also subject to similar
arrangements.

        18. RESTRICTIONS ON TRANSFER OF SHARES.

            No shares acquired upon exercise of the Option may be sold,
exchanged, transferred (including, without limitation, any transfer to a nominee
or agent of the Optionee), assigned, pledged, hypothecated or otherwise disposed
of, including by operation of law, in any manner which violates any of the
provisions of this Option Agreement and, except pursuant to an Ownership Change
Event, until the date on which such shares become Vested Shares, and any

                                       17
<PAGE>   18

such attempted disposition shall be void. The Company shall not be required (a)
to transfer on its books any shares which will have been transferred in
violation of any of the provisions set forth in this Option Agreement or (b) to
treat as owner of such shares or to accord the right to vote as such owner or to
pay dividends to any transferee to whom such shares will have been so
transferred.

        19. BINDING EFFECT.

            Subject to the restrictions on transfer set forth herein, this
Option Agreement shall inure to the benefit of and be binding upon the parties
hereto and their respective heirs, executors, administrators, successors and
assigns.

        20. TERMINATION OR AMENDMENT.

            The Board may terminate or amend the Plan or the Option at any time;
provided, however, that except as provided in Section 8.2 in connection with a
Change in Control, no such termination or amendment may adversely affect the
Option or any unexercised portion hereof without the consent of the Optionee
unless such termination or amendment is necessary to comply with any applicable
law or government regulation or is required to enable the Option to qualify as
an Incentive Stock Option. No amendment or addition to this Option Agreement
shall be effective unless in writing.

        21. NOTICES.

            Any notice required or permitted hereunder shall be given in writing
and shall be deemed effectively given (except to the extent that this Option
Agreement provides for effectiveness only upon actual receipt of such notice)
upon personal delivery or upon deposit in the United States Post Office, by
registered or certified mail, with postage and fees prepaid, addressed to the
other party at the address shown below that party's signature or at such other
address as such party may designate in writing from time to time to the other
party.

        22. INTEGRATED AGREEMENT.

            This Option Agreement and the Plan constitute the entire
understanding and agreement of the Optionee and the Participating Company Group
with respect to the subject matter contained herein and therein and there are no
agreements, understandings, restrictions, representations, or warranties among
the Optionee and the Participating Company Group with respect to such subject
matter other than those as set forth or provided for herein or therein. To the
extent contemplated herein or therein, the provisions of this Option Agreement
shall survive any exercise of the Option and shall remain in full force and
effect.


                                       18
<PAGE>   19


        23. APPLICABLE LAW.

            This Option Agreement shall be governed by the laws of the State of
California as such laws are applied to agreements between California residents
entered into and to be performed entirely within the State of California.

                                        V-BITS, INC.

                                        By:
                                           -------------------------------------
                                        Title:
                                              ----------------------------------
                                        Address:  2199 Zanker Rd.
                                                  San Jose, CA 95131

        The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement, including the Unvested Share Repurchase
Option set forth in Section 11 and the Right of First Refusal set forth in
Section 12, and hereby accepts the Option subject to all of the terms and
provisions thereof. The Optionee hereby agrees to accept as binding, conclusive
and final all decisions or interpretations of the Board upon any questions
arising under this Option Agreement. The undersigned acknowledges receipt of a
copy of the Plan.

                                        OPTIONEE

Date:
     -------------------------------    ----------------------------------------


                                        Optionee Address:




                                       19
<PAGE>   20

                                                                       Optionee:
                                                                           Date:

                             IMMEDIATELY EXERCISABLE

                             INCENTIVE STOCK OPTION

                                 EXERCISE NOTICE

V-Bits, Inc.
2199 Zanker Rd.
San Jose, CA 95131

Attention: Chief Financial Officer

Gentlemen:

        1. Exercise of Option. I was granted an incentive stock option (the
"OPTION") to purchase 100,000 shares of the common stock of V-Bits, Inc. (the
"COMPANY") on December 1st 1997 pursuant to the Company's 1997 Stock Option Plan
(the "PLAN") and pursuant to the Immediately Exercisable Incentive Stock Option
Agreement dated December 1st 1997 (the "OPTION AGREEMENT"). I hereby elect to
exercise the Option as to a total of 29,167 shares of the common stock of the
Company (the "SHARES"), of which 29,167 are Vested Shares and none are Unvested
Shares as determined in accordance with the Option Agreement.

        2. Payments. Enclosed herewith is full payment in the aggregate amount
of $2,916.70 (representing $.10 per share) for the Shares in the manner set
forth in the Option Agreement. I authorize payroll withholding and otherwise
will make adequate provision for foreign, federal and state tax withholding
obligations of the Company, if any.

        3. Binding Effect. I agree that the Shares are being acquired in
accordance with and subject to the terms, provisions and conditions of the
Option Agreement, including the Unvested Share Repurchase Option and the Right
of First Refusal set forth therein, to all of which I hereby expressly assent.
This Agreement shall inure to the benefit of and be binding upon the my heirs,
executors, administrators, successors and assigns. I agree to deposit the
certificate or certificates evidencing the Shares, along with a blank stock
assignment separate from certificate executed by me, with an escrow agent
designated by the Company, to be held by such escrow agent pursuant to the
Company's standard Joint Escrow Instructions, an executed copy of which I have
delivered herewith.

        4. Transfer. I am aware that Rule 144, promulgated under the Securities
Act of 1933, which permits limited public resale of securities acquired in a
nonpublic offering, is not currently available with respect to the Shares and,
in any event, is available only if certain

                                       1
<PAGE>   21

conditions are satisfied. I understand that any sale of the Shares that might be
made in reliance upon Rule 144 may only be made in limited amounts in accordance
with the terms and conditions of such rule and that a copy of Rule 144 will be
delivered to me upon request.

        I agree that I will promptly notify the Chief Financial Officer of the
Company if I transfer any of the Shares acquired pursuant to the Option within
one (1) year from the date I exercise all or part of the Option or within two
(2) years of the date of grant of the Option.

        My address of record is:

        ------------------------------------------------------------------------

        ------------------------------------------------------------------------

        My Social Security Number is:

        ------------------------------------------------------------------------

        5. Election Under Section 83(b) of the Code. I understand and
acknowledge that if I am exercising the Option to purchase Unvested Shares
(i.e., shares that remain subject to the Company's Unvested Share Repurchase
Option), that I should consult with my tax advisor regarding the advisability of
filing with the Internal Revenue Service an election under Section 83(b) of the
Code, which must be filed no later than thirty (30) days after the date on which
I exercise the Option.

        I acknowledge that I have been advised to consult with a tax advisor
prior to the exercise of the Option regarding the tax consequences to me of
exercising the Option. AN ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30
DAYS AFTER THE DATE ON WHICH I PURCHASE SHARES. THIS TIME PERIOD CANNOT BE
EXTENDED. I ACKNOWLEDGE THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS MY
SOLE RESPONSIBILITY, EVEN IF I REQUEST THE COMPANY OR ITS REPRESENTATIVES TO
FILE SUCH ELECTION ON MY BEHALF.

                                       2
<PAGE>   22

        I understand that I am purchasing the Shares pursuant to the terms of
the Plan and my Option Agreement, copies of which I have received and carefully
read and understand.

                                         Very truly yours,

                                         ---------------------------------------
                                         (Signature)

                                         ---------------------------------------
                                         (Optionee's Name Printed)

Receipt of the above is hereby acknowledged.

V-BITS, INC.

By:
   ---------------------------------
Title:
      ------------------------------
Dated:
      ------------------------------


                                       3

<PAGE>   1
                                                                    EXHIBIT 99.3

THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT HAVE NOT BEEN QUALIFIED
WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF CALIFORNIA AND THE
ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY PART OF THE
CONSIDERATION THEREFOR PRIOR TO SUCH QUALIFICATION IS UNLAWFUL, UNLESS THE SALE
OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION 25100, 25102, OR 25105 OF
THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL PARTIES TO THIS AGREEMENT
ARE EXPRESSLY CONDITIONED UPON SUCH QUALIFICATION BEING OBTAINED, UNLESS THE
SALE IS SO EXEMPT.

THE SECURITY REPRESENTED BY THIS CERTIFICATE HAS BEEN ACQUIRED FOR INVESTMENT
AND NOT WITH A VIEW TO, OR IN CONNECTION WITH, THE SALE OR DISTRIBUTION THEREOF.
NO SUCH SALE OR DISPOSITION MAY BE EFFECTED WITHOUT AN EFFECTIVE REGISTRATION
STATEMENT RELATED THERETO OR AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY
THAT SUCH REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT OF 1933.


                                  V-BITS, INC.
                             IMMEDIATELY EXERCISABLE
                       NONSTATUTORY STOCK OPTION AGREEMENT


        THIS IMMEDIATELY EXERCISABLE NONSTATUTORY STOCK OPTION AGREEMENT (the
"OPTION AGREEMENT") is made and entered into as of ________, 199_, by and
between V-Bits, Inc., a California corporation (the "COMPANY") and
______________ (the "OPTIONEE").

        The Company has granted to the Optionee pursuant to the V-Bits, Inc.
1997 Stock Option Plan (the "PLAN") an option to purchase certain shares of
Stock, upon the terms and conditions set forth in this Option Agreement (the
"OPTION"). The Option shall in all respects be subject to the terms and
conditions of the Plan, the provisions of which are incorporated herein by
reference.

        1.     DEFINITIONS AND CONSTRUCTION.

               1.1 DEFINITIONS. Unless otherwise defined herein, capitalized
terms shall have the meanings assigned to such terms in the Plan. Whenever used
herein, the following terms shall have their respective meanings set forth
below:

                   (a) "DATE OF OPTION GRANT" means _______________.

                   (b) "NUMBER OF OPTION SHARES" means _______ shares of Stock,
as adjusted from time to time pursuant to Section 9.


                                       1

<PAGE>   2




                   (c) "EXERCISE PRICE" means $ _____ per share of Stock, as
adjusted from time to time pursuant to Section 9.

                   (d) "INITIAL EXERCISE DATE" means the later of the Date of
Option Grant or the date the Optionee's Service commences.

                   (e) "INITIAL VESTING DATE" means the date occurring one (1)
year after (check one):

                        X the Date of Option Grant.

                        X__________, 199__ , the date the Optionee's Service
commenced.

                   (f) "VESTED RATIO" means, on any relevant date, the ratio
determined as follows:

<TABLE>
<CAPTION>
                                                                                Vested Ratio
                                                                                ------------
<S>            <C>                                                              <C>
               Prior to Initial Vesting Date                                           0

               On Initial Vesting Date, provided the Optionee's                      1/4
               Service has not terminated prior to such date

               Plus

               For each full month of the Optionee's continuous                      1/48
               Service from the Initial Vesting Date until the
               Vested Ratio equals 1/1, an additional
</TABLE>

                   (g) "OPTION EXPIRATION DATE" means the date ten (10) years
after the Date of Option Grant.

                   (h) "SERVICE" means the Optionee's employment or service with
the Participating Company Group, whether in the capacity of an Employee, a
Director or a Consultant. The Optionee's Service shall not be deemed to have
terminated merely because of a change in the capacity in which the Optionee
renders Service to the Participating Company Group or a change in the
Participating Company for which the Optionee renders such Service, provided that
there is no interruption or termination of the Optionee's Service. Furthermore,
the Optionee's Service with the Participating Company Group shall not be deemed
to have terminated if the Optionee takes any military leave, sick leave, or
other bona fide leave of absence approved by the Company; provided, however,
that if any such leave exceeds ninety (90) days, on the ninety-first (91st) day
of such leave the Optionee's Service shall be deemed to have terminated unless
the Optionee's right to return to Service with the Participating Company

                                       2

<PAGE>   3

Group is guaranteed by statute or contract. Notwithstanding the foregoing,
unless otherwise designated by the Company or required by law, a leave of
absence shall not be treated as Service for purposes of determining the
Optionee's Vested Ratio. The Optionee's Service shall be deemed to have
terminated either upon an actual termination of Service or upon the corporation
for which the Optionee performs Service ceasing to be a Participating Company.
Subject to the foregoing, the Company, in its sole discretion, shall determine
whether the Optionee's Service has terminated and the effective date of such
termination.

               1.2 CONSTRUCTION. Captions and titles contained herein are for
convenience only and shall not affect the meaning or interpretation of any
provision of this Option Agreement. Except when otherwise indicated by the
context, the singular shall include the plural and the plural shall include the
singular. Use of the term "or" is not intended to be exclusive, unless the
context clearly requires otherwise.

        2.     TAX CONSEQUENCES.

               2.1 TAX STATUS OF OPTION. This Option is intended to be a
Nonstatutory Stock Option and shall not be treated as an Incentive Stock Option
within the meaning of Section 422(b) of the Code.

               2.2 ELECTION UNDER SECTION 83(b) OF THE CODE. If the Optionee
exercises this Option to purchase shares of Stock that are both nontransferable
and subject to a substantial risk of forfeiture, the Optionee understands that
the Optionee should consult with the Optionee's tax advisor regarding the
advisability of filing with the Internal Revenue Service an election under
Section 83(b) of the Code, which must be filed no later than thirty (30) days
after the date on which the Optionee exercises the Option. Shares acquired upon
exercise of the Option are nontransferable and subject to a substantial risk of
forfeiture if, for example, (a) they are unvested and are subject to a right of
the Company to repurchase such shares at the Optionee's original purchase price
if the Optionee's Service terminates, (b) the Optionee is an Insider and, under
certain circumstances, exercises the Option within six (6) months of the Date of
Option Grant (if a class of equity security of the Company is registered under
Section 12 of the Exchange Act), or (c) the Optionee is subject to a restriction
on transfer to comply with "Pooling-of-Interests Accounting" rules. Failure to
file an election under Section 83(b), if appropriate, may result in adverse tax
consequences to the Optionee. The Optionee acknowledges that the Optionee has
been advised to consult with a tax advisor prior to the exercise of the Option
regarding the tax consequences to the Optionee of the exercise of the Option. AN
ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30 DAYS AFTER THE DATE ON
WHICH THE OPTIONEE PURCHASES SHARES. THIS TIME PERIOD CANNOT BE EXTENDED. THE
OPTIONEE ACKNOWLEDGES THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS THE
OPTIONEE'S SOLE RESPONSIBILITY, EVEN IF THE OPTIONEE REQUESTS THE COMPANY OR ITS
REPRESENTATIVE TO FILE SUCH ELECTION ON HIS OR HER BEHALF.

        3.     ADMINISTRATION.

                                       3
<PAGE>   4
               All questions of interpretation concerning this Option Agreement
shall be determined by the Board. All determinations by the Board shall be final
and binding upon all persons having an interest in the Option. Any officer of a
Participating Company shall have the authority to act on behalf of the Company
with respect to any matter, right, obligation, or election which is the
responsibility of or which is allocated to the Company herein, provided the
officer has apparent authority with respect to such matter, right, obligation,
or election.

        4.     EXERCISE OF THE OPTION.

               4.1 RIGHT TO EXERCISE. Except as otherwise provided herein, the
Option shall be exercisable on and after the Initial Exercise Date and prior to
the termination of the Option (as provided in Section 6) in an amount not to
exceed the Number of Option Shares less the number of shares previously acquired
upon exercise of the Option, subject to the Optionee's agreement that any shares
purchased upon exercise are subject to the Company's repurchase rights set forth
in Section 11 and Section 12.

               4.2 METHOD OF EXERCISE. Exercise of the Option shall be by
written notice to the Company which must state the election to exercise the
Option, the number of whole shares of Stock for which the Option is being
exercised and such other representations and agreements as to the Optionee's
investment intent with respect to such shares as may be required pursuant to the
provisions of this Option Agreement. The written notice must be signed by the
Optionee and must be delivered in person, by certified or registered mail,
return receipt requested, by confirmed facsimile transmission, or by such other
means as the Company may permit, to the Chief Financial Officer of the Company,
or other authorized representative of the Participating Company Group, prior to
the termination of the Option as set forth in Section 6, accompanied by (i) full
payment of the aggregate Exercise Price for the number of shares of Stock being
purchased and (ii) an executed copy, if required herein, of the then current
form of escrow agreement referenced below. The Option shall be deemed to be
exercised upon receipt by the Company of such written notice, the aggregate
Exercise Price, and, if required by the Company, such executed agreement.

               4.3 PAYMENT OF EXERCISE PRICE.

                      (a) FORMS OF CONSIDERATION AUTHORIZED. Except as otherwise
provided below, payment of the aggregate Exercise Price for the number of shares
of Stock for which the Option is being exercised shall be made (i) in cash, by
check, or cash equivalent, (ii) by tender to the Company of whole shares of
Stock owned by the Optionee having a Fair Market Value (as determined by the
Company without regard to any restrictions on transferability applicable to such
stock by reason of federal or state securities laws or agreements with an
underwriter for the Company) not less than the aggregate Exercise Price, (iii)
by means of a Cashless Exercise, as defined in Section 4.3(c), or (iv) by any
combination of the foregoing.

                      (b) TENDER OF STOCK. Notwithstanding the foregoing, the
Option may not be exercised by tender to the Company of shares of Stock to the
extent such tender of Stock would constitute a violation of the provisions of
any law, regulation or agreement restricting the redemption of the Company's
stock. The Option may not be exercised by tender to the Company


                                       4

<PAGE>   5
of shares of Stock unless such shares either have been owned by the Optionee for
more than six (6) months or were not acquired, directly or indirectly, from the
Company.

                      (c) CASHLESS EXERCISE. A "CASHLESS EXERCISE" means the
assignment in a form acceptable to the Company of the proceeds of a sale or loan
with respect to some or all of the shares of Stock acquired upon the exercise of
the Option pursuant to a program or procedure approved by the Company
(including, without limitation, through an exercise complying with the
provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System). The Company reserves, at any and all
times, the right, in the Company's sole and absolute discretion, to decline to
approve or terminate any such program or procedure.

               4.4 TAX WITHHOLDING. At the time the Option is exercised, in
whole or in part, or at any time thereafter as requested by the Company, the
Optionee hereby authorizes withholding from payroll and any other amounts
payable to the Optionee, and otherwise agrees to make adequate provision for
(including by means of a Cashless Exercise to the extent permitted by the
Company), any sums required to satisfy the federal, state, local and foreign tax
withholding obligations of the Participating Company Group, if any, which arise
in connection with the Option, including, without limitation, obligations
arising upon (i) the exercise, in whole or in part, of the Option, (ii) the
transfer, in whole or in part, of any shares acquired upon exercise of the
Option, (iii) the operation of any law or regulation providing for the
imputation of interest, or (iv) the lapsing of any restriction with respect to
any shares acquired upon exercise of the Option. The Optionee is cautioned that
the Option is not exercisable unless the tax withholding obligations of the
Participating Company Group are satisfied. Accordingly, the Optionee may not be
able to exercise the Option when desired even though the Option is vested, and
the Company shall have no obligation to issue a certificate for such shares or
release such shares from any escrow provided for herein.

               4.5 CERTIFICATE REGISTRATION. Except in the event the Exercise
Price is paid by means of a Cashless Exercise, the certificate for the shares as
to which the Option is exercised shall be registered in the name of the
Optionee, or, if applicable, in the names of the heirs of the Optionee.

               4.6 RESTRICTIONS ON GRANT OF THE OPTION AND ISSUANCE OF SHARES.
The grant of the Option and the issuance of shares of Stock upon exercise of the
Option shall be subject to compliance with all applicable requirements of
federal, state or foreign law with respect to such securities. The Option may
not be exercised if the issuance of shares of Stock upon exercise would
constitute a violation of any applicable federal, state or foreign securities
laws or other law or regulations or the requirements of any stock exchange or
market system upon which the Stock may then be listed. In addition, the Option
may not be exercised unless (i) a registration statement under the Securities
Act shall at the time of exercise of the Option be in effect with respect to the
shares issuable upon exercise of the Option or (ii) in the opinion of legal
counsel to the Company, the shares issuable upon exercise of the Option may be
issued in accordance with the terms of an applicable exemption from the
registration requirements of the Securities Act. THE OPTIONEE IS CAUTIONED THAT
THE OPTION MAY NOT BE EXERCISED UNLESS THE FOREGOING CONDITIONS ARE SATISFIED.
ACCORDINGLY, THE

                                       5
<PAGE>   6

OPTIONEE MAY NOT BE ABLE TO EXERCISE THE OPTION WHEN DESIRED EVEN THOUGH THE
OPTION IS VESTED. The inability of the Company to obtain from any regulatory
body having jurisdiction the authority, if any, deemed by the Company's legal
counsel to be necessary to the lawful issuance and sale of any shares subject to
the Option shall relieve the Company of any liability in respect of the failure
to issue or sell such shares as to which such requisite authority shall not have
been obtained. As a condition to the exercise of the Option, the Company may
require the Optionee to satisfy any qualifications that may be necessary or
appropriate, to evidence compliance with any applicable law or regulation and to
make any representation or warranty with respect thereto as may be requested by
the Company.

               4.7 FRACTIONAL SHARES. The Company shall not be required to issue
fractional shares upon the exercise of the Option.

        5.     NONTRANSFERABILITY OF THE OPTION.

               The Option may be exercised during the lifetime of the Optionee
only by the Optionee or the Optionee's guardian or legal representative and may
not be assigned or transferred in any manner except by will or by the laws of
descent and distribution. Following the death of the Optionee, the Option, to
the extent provided in Section 7, may be exercised by the Optionee's legal
representative or by any person empowered to do so under the deceased Optionee's
will or under the then applicable laws of descent and distribution.

        6.     TERMINATION OF THE OPTION.

               The Option shall terminate and may no longer be exercised on the
first to occur of (a) the Option Expiration Date, (b) the last date for
exercising the Option following termination of the Optionee's Service as
described in Section 7, or (c) a Change in Control to the extent provided in
Section 8.

        7.     EFFECT OF TERMINATION OF SERVICE.

               7.1    OPTION EXERCISABILITY.

                      (a) DISABILITY. If the Optionee's Service with the
Participating Company Group is terminated because of the Disability of the
Optionee, the Option, to the extent unexercised and exercisable on the date on
which the Optionee's Service terminated, may be exercised by the Optionee (or
the Optionee's guardian or legal representative) at any time prior to the
expiration of six (6) months after the date on which the Optionee's Service
terminated, but in any event no later than the Option Expiration Date.

                      (b) DEATH. If the Optionee's Service with the
Participating Company Group is terminated because of the death of the Optionee,
the Option, to the extent unexercised and exercisable on the date on which the
Optionee's Service terminated, may be exercised by the Optionee's legal
representative or other person who acquired the right to exercise the Option by
reason of the Optionee's death at any time prior to the expiration of six (6)
months after the date on which the Optionee's Service terminated, but in any
event no later than the Option Expiration


                                       6
<PAGE>   7

Date. The Optionee's Service shall be deemed to have terminated on account of
death if the Optionee dies within one (1) month after the Optionee's termination
of Service.

                      (c) OTHER TERMINATION OF SERVICE. If the Optionee's
Service with the Participating Company Group terminates for any reason, except
Disability or death, the Option, to the extent unexercised and exercisable by
the Optionee on the date on which the Optionee's Service terminated, may be
exercised by the Optionee within one (1) month (or such other longer period of
time as determined by the Board, in its sole discretion) after the date on which
the Optionee's Service terminated, but in any event no later than the Option
Expiration Date.

               7.2 ADDITIONAL LIMITATIONS ON OPTION EXERCISE. Notwithstanding
the provisions of Section 7.1, the Option may not be exercised after the
Optionee's termination of Service to the extent that the shares to be acquired
upon exercise of the Option would be subject to the Unvested Share Repurchase
Option as provided in Section 11.

               7.3 EXTENSION IF EXERCISE PREVENTED BY LAW. Notwithstanding the
foregoing, if the exercise of the Option within the applicable time periods set
forth in Section 7.1 is prevented by the provisions of Section 4.6, the Option
shall remain exercisable until one (1) month after the date the Optionee is
notified by the Company that the Option is exercisable, but in any event no
later than the Option Expiration Date.

               7.4 EXTENSION IF OPTIONEE SUBJECT TO SECTION 16(b).
Notwithstanding the foregoing, if a sale within the applicable time periods set
forth in Section 7.1 of shares acquired upon the exercise of the Option would
subject the Optionee to suit under Section 16(b) of the Exchange Act, the Option
shall remain exercisable until the earliest to occur of (i) the tenth (10th) day
following the date on which a sale of such shares by the Optionee would no
longer be subject to such suit, (ii) the one hundred and ninetieth (190th) day
after the Optionee's termination of Service, or (iii) the Option Expiration
Date.

        8.     CHANGE IN CONTROL.

               8.1    DEFINITIONS.

                      (a) An "OWNERSHIP CHANGE EVENT" shall be deemed to have
occurred if any of the following occurs with respect to the Company:

                             (i) the direct or indirect sale or exchange in a
single or series of related transactions by the shareholders of the Company of
more than fifty percent (50%) of the voting stock of the Company;

                             (ii) a merger or consolidation in which the Company
is a party; or

                             (iii) the sale, exchange, or transfer of all or
substantially all of the assets of the Company; or


                                       7

<PAGE>   8


                             (iv) a liquidation or dissolution of the Company.

                      (b) A "CHANGE IN CONTROL" shall mean an Ownership Change
Event or a series of related Ownership Change Events (collectively, the
"TRANSACTION") wherein the shareholders of the Company immediately before the
Transaction do not retain immediately after the Transaction, in substantially
the same proportions as their ownership of shares of the Company's voting stock
immediately before the Transaction, direct or indirect beneficial ownership of
more than fifty percent (50%) of the total combined voting power of the
outstanding voting stock of the Company or the corporation or corporations to
which the assets of the Company were transferred (the "TRANSFEREE
CORPORATION(S)"), as the case may be. For purposes of the preceding sentence,
indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting stock of one or more corporations which,
as a result of the Transaction, own the Company or the Transferee
Corporation(s), as the case may be, either directly or through one or more
subsidiary corporations. The Board shall have the right to determine whether
multiple sales or exchanges of the voting stock of the Company or multiple
Ownership Change Events are related, and its determination shall be final,
binding and conclusive.

               8.2 EFFECT OF CHANGE IN CONTROL ON OPTION. In the event of a
Change in Control, the surviving, continuing, successor, or purchasing
corporation or parent corporation thereof, as the case may be (the "ACQUIRING
CORPORATION"), may either assume the Company's rights and obligations under the
Option or substitute for the Option a substantially equivalent option for the
Acquiring Corporation's stock. For purposes of this Section 8.2, the Option
shall be deemed assumed if, following the Change in Control, the Option confers
the right to purchase in accordance with its terms and conditions, for each
share of Stock subject to the Option immediately prior to the Change in Control,
the consideration (whether stock, cash or other securities or property) to which
a holder of a share of Stock on the effective date of the Change in Control was
entitled. The Option shall terminate and cease to be outstanding effective as of
the date of the Change in Control to the extent that the Option is neither
assumed or substituted for by the Acquiring Corporation in connection with the
Change in Control nor exercised as of the date of the Change in Control.
Notwithstanding the foregoing, shares acquired upon exercise of the Option prior
to the Change in Control and any consideration received pursuant to the Change
in Control with respect to such shares shall continue to be subject to all
applicable provisions of this Option Agreement except as otherwise provided
herein. Furthermore, notwithstanding the foregoing, if the corporation the stock
of which is subject to the Option immediately prior to an Ownership Change Event
described in Section 8.1(a)(i) constituting a Change in Control is the surviving
or continuing corporation and immediately after such Ownership Change Event less
than fifty percent (50%) of the total combined voting power of its voting stock
is held by another corporation or by other corporations that are members of an
affiliated group within the meaning of Section 1504(a) of the Code without
regard to the provisions of Section 1504(b) of the Code, the Option shall not
terminate unless the Board otherwise provides in its sole discretion.

        9.     ADJUSTMENTS FOR CHANGES IN CAPITAL STRUCTURE.

               In the event of any stock dividend, stock split, reverse stock
split, recapitalization, combination, reclassification, or similar change in the
capital structure of the Company,


                                       8
<PAGE>   9

appropriate adjustments shall be made in the number, Exercise Price and class of
shares of stock subject to the Option. If a majority of the shares which are of
the same class as the shares that are subject to the Option are exchanged for,
converted into, or otherwise become (whether or not pursuant to an Ownership
Change Event) shares of another corporation (the "NEW SHARES"), the Board may
unilaterally amend the Option to provide that the Option is exercisable for New
Shares. In the event of any such amendment, the Number of Option Shares and the
Exercise Price shall be adjusted in a fair and equitable manner, as determined
by the Board, in its sole discretion. Notwithstanding the foregoing, any
fractional share resulting from an adjustment pursuant to this Section 9 shall
be rounded up or down to the nearest whole number, as determined by the Board,
and in no event may the Exercise Price be decreased to an amount less than the
par value, if any, of the stock subject to the Option. The adjustments
determined by the Board pursuant to this Section 9 shall be final, binding and
conclusive.

        10.    RIGHTS AS A SHAREHOLDER, EMPLOYEE OR CONSULTANT.

               The Optionee shall have no rights as a shareholder with respect
to any shares covered by the Option until the date of the issuance of a
certificate for the shares for which the Option has been exercised (as evidenced
by the appropriate entry on the books of the Company or of a duly authorized
transfer agent of the Company). No adjustment shall be made for dividends,
distributions or other rights for which the record date is prior to the date
such certificate is issued, except as provided in Section 9. If the Optionee is
an Employee, the Optionee understands and acknowledges that, except as otherwise
provided in a separate, written employment agreement between a Participating
Company and the Optionee, the Optionee's employment is "at will" and is for no
specified term. Nothing in this Option Agreement shall confer upon the Optionee
any right to continue in the Service of a Participating Company or interfere in
any way with any right of the Participating Company Group to terminate the
Optionee's Service as an Employee or Consultant, as the case may be, at any
time.

        11.    UNVESTED SHARE REPURCHASE OPTION.

               11.1 GRANT OF UNVESTED SHARE REPURCHASE OPTION. In the event the
Optionee's Service with the Participating Company Group is terminated for any
reason or no reason, with or without cause, or, if the Optionee, the Optionee's
legal representative, or other holder of shares acquired upon exercise of the
Option attempts to sell, exchange, transfer, pledge, or otherwise dispose of
(other than pursuant to an Ownership Change Event) any shares acquired upon
exercise of the Option which exceed the Vested Shares as defined in Section 11.2
below (the "UNVESTED SHARES"), the Company shall have the right to repurchase
the Unvested Shares under the terms and subject to the conditions set forth in
this Section 11 (the "UNVESTED SHARE REPURCHASE OPTION").

               11.2 VESTED SHARES AND UNVESTED SHARES DEFINED. The "VESTED
SHARES" shall mean, on any given date, a number of shares of Stock equal to the
Number of Option Shares multiplied by the Vested Ratio determined as of such
date and rounded down to the nearest whole share. On such given date, the
"UNVESTED SHARES" shall mean the number of shares of Stock acquired upon
exercise of the Option which exceed the Vested Shares determined as of such
date.

                                       9

<PAGE>   10


               11.3 EXERCISE OF UNVESTED SHARE REPURCHASE OPTION. The Company
may exercise the Unvested Share Repurchase Option by written notice to the
Optionee within sixty (60) days after (a) termination of the Optionee's Service
(or exercise of the Option, if later) or (b) the Company has received notice of
the attempted disposition of Unvested Shares. If the Company fails to give
notice within such sixty (60) day period, the Unvested Share Repurchase Option
shall terminate unless the Company and the Optionee have extended the time for
the exercise of the Unvested Share Repurchase Option. The Unvested Share
Repurchase Option must be exercised, if at all, for all of the Unvested Shares,
except as the Company and the Optionee otherwise agree.

               11.4 PAYMENT FOR SHARES AND RETURN OF SHARES TO COMPANY. The
purchase price per share being repurchased by the Company shall be an amount
equal to the Optionee's original cost per share, as adjusted pursuant to Section
9 (the "REPURCHASE PRICE"). The Company shall pay the aggregate Repurchase Price
to the Optionee in cash within thirty (30) days after the date of the written
notice to the Optionee of the Company's exercise of the Unvested Share
Repurchase Option. For purposes of the foregoing, cancellation of any
indebtedness of the Optionee to any Participating Company shall be treated as
payment to the Optionee in cash to the extent of the unpaid principal and any
accrued interest canceled. The shares being repurchased shall be delivered to
the Company by the Optionee at the same time as the delivery of the Repurchase
Price to the Optionee.

               11.5 ASSIGNMENT OF UNVESTED SHARE REPURCHASE OPTION. The Company
shall have the right to assign the Unvested Share Repurchase Option at any time,
whether or not such option is then exercisable, to one or more persons as may be
selected by the Company.

               11.6 OWNERSHIP CHANGE EVENT. Upon the occurrence of an Ownership
Change Event, any and all new, substituted or additional securities or other
property to which the Optionee is entitled by reason of the Optionee's ownership
of Unvested Shares shall be immediately subject to the Unvested Share Repurchase
Option and included in the terms "Stock" and "Unvested Shares" for all purposes
of the Unvested Share Repurchase Option with the same force and effect as the
Unvested Shares immediately prior to the Ownership Change Event. While the
aggregate Repurchase Price shall remain the same after such Ownership Change
Event, the Repurchase Price per Unvested Share upon exercise of the Unvested
Share Repurchase Option following such Ownership Change Event shall be adjusted
as appropriate. For purposes of determining the Vested Ratio following an
Ownership Change Event, credited Service shall include all Service with any
corporation which is a Participating Company at the time the Service is
rendered, whether or not such corporation is a Participating Company both before
and after the Ownership Change Event.

        12.    RIGHT OF FIRST REFUSAL.

               12.1 GRANT OF RIGHT OF FIRST REFUSAL. Except as provided in
Section 12.7 below, in the event the Optionee, the Optionee's legal
representative, or other holder of shares acquired upon exercise of the Option
proposes to sell, exchange, transfer, pledge, or otherwise dispose of any Vested
Shares (the "TRANSFER SHARES") to any person or entity, including, without

                                       10

<PAGE>   11



limitation, any shareholder of the Participating Company Group, the Company
shall have the right to repurchase the Transfer Shares under the terms and
subject to the conditions set forth in this Section 12 (the "RIGHT OF FIRST
REFUSAL").

               12.2 NOTICE OF PROPOSED TRANSFER. Prior to any proposed transfer
of the Transfer Shares, the Optionee shall deliver written notice (the "TRANSFER
NOTICE") to the Company describing fully the proposed transfer, including the
number of Transfer Shares, the name and address of the proposed transferee (the
"PROPOSED TRANSFEREE") and, if the transfer is voluntary, the proposed transfer
price, and containing such information necessary to show the bona fide nature of
the proposed transfer. In the event of a bona fide gift or involuntary transfer,
the proposed transfer price shall be deemed to be the Fair Market Value of the
Transfer Shares, as determined by the Board in good faith. If the Optionee
proposes to transfer any Transfer Shares to more than one Proposed Transferee,
the Optionee shall provide a separate Transfer Notice for the proposed transfer
to each Proposed Transferee. The Transfer Notice shall be signed by both the
Optionee and the Proposed Transferee and must constitute a binding commitment of
the Optionee and the Proposed Transferee for the transfer of the Transfer Shares
to the Proposed Transferee subject only to the Right of First Refusal.

               12.3 BONA FIDE TRANSFER. If the Company determines that the
information provided by the Optionee in the Transfer Notice is insufficient to
establish the bona fide nature of a proposed voluntary transfer, the Company
shall give the Optionee written notice of the Optionee's failure to comply with
the procedure described in this Section 12, and the Optionee shall have no right
to transfer the Transfer Shares without first complying with the procedure
described in this Section 12. The Optionee shall not be permitted to transfer
the Transfer Shares if the proposed transfer is not bona fide.

               12.4 EXERCISE OF RIGHT OF FIRST REFUSAL. If the Company
determines the proposed transfer to be bona fide, the Company shall have the
right to purchase all, but not less than all, of the Transfer Shares (except as
the Company and the Optionee otherwise agree) at the purchase price and on the
terms set forth in the Transfer Notice by delivery to the Optionee of a notice
of exercise of the Right of First Refusal within thirty (30) days after the date
the Transfer Notice is delivered to the Company. The Company's exercise or
failure to exercise the Right of First Refusal with respect to any proposed
transfer described in a Transfer Notice shall not affect the Company's right to
exercise the Right of First Refusal with respect to any proposed transfer
described in any other Transfer Notice, whether or not such other Transfer
Notice is issued by the Optionee or issued by a person other than the Optionee
with respect to a proposed transfer to the same Proposed Transferee. If the
Company exercises the Right of First Refusal, the Company and the Optionee shall
thereupon consummate the sale of the Transfer Shares to the Company on the terms
set forth in the Transfer Notice within sixty (60) days after the date the
Transfer Notice is delivered to the Company (unless a longer period is offered
by the Proposed Transferee); provided, however, that in the event the Transfer
Notice provides for the payment for the Transfer Shares other than in cash, the
Company shall have the option of paying for the Transfer Shares by the present
value cash equivalent of the consideration described in the Transfer Notice as
reasonably determined by the Company. For purposes of the foregoing,
cancellation of any indebtedness of the Optionee to any Participating Company
shall be treated as payment to the Optionee in cash to the extent of the unpaid
principal and any accrued interest canceled.


                                       11
<PAGE>   12


               12.5 FAILURE TO EXERCISE RIGHT OF FIRST REFUSAL. If the Company
fails to exercise the Right of First Refusal in full (or to such lesser extent
as the Company and the Optionee otherwise agree) within the period specified in
Section 12.4 above, the Optionee may conclude a transfer to the Proposed
Transferee of the Transfer Shares on the terms and conditions described in the
Transfer Notice, provided such transfer occurs not later than ninety (90) days
following delivery to the Company of the Transfer Notice. The Company shall have
the right to demand further assurances from the Optionee and the Proposed
Transferee (in a form satisfactory to the Company) that the transfer of the
Transfer Shares was actually carried out on the terms and conditions described
in the Transfer Notice. No Transfer Shares shall be transferred on the books of
the Company until the Company has received such assurances, if so demanded, and
has approved the proposed transfer as bona fide. Any proposed transfer on terms
and conditions different from those described in the Transfer Notice, as well as
any subsequent proposed transfer by the Optionee, shall again be subject to the
Right of First Refusal and shall require compliance by the Optionee with the
procedure described in this Section 12.

               12.6 TRANSFEREES OF TRANSFER SHARES. All transferees of the
Transfer Shares or any interest therein, other than the Company, shall be
required as a condition of such transfer to agree in writing (in a form
satisfactory to the Company) that such transferee shall receive and hold such
Transfer Shares or interest therein subject to all of the terms and conditions
of this Option Agreement, including this Section 12 providing for the Right of
First Refusal with respect to any subsequent transfer. Any sale or transfer of
any shares acquired upon exercise of the Option shall be void unless the
provisions of this Section 12 are met.

               12.7 TRANSFERS NOT SUBJECT TO RIGHT OF FIRST REFUSAL. The Right
of First Refusal shall not apply to any transfer or exchange of the shares
acquired upon exercise of the Option if such transfer or exchange is in
connection with an Ownership Change Event. If the consideration received
pursuant to such transfer or exchange consists of stock of a Participating
Company, such consideration shall remain subject to the Right of First Refusal
unless the provisions of Section 12.9 below result in a termination of the Right
of First Refusal.

               12.8 ASSIGNMENT OF RIGHT OF FIRST REFUSAL. The Company shall have
the right to assign the Right of First Refusal at any time, whether or not there
has been an attempted transfer, to one or more persons as may be selected by the
Company.

               12.9 EARLY TERMINATION OF RIGHT OF FIRST REFUSAL. The other
provisions of this Option Agreement notwithstanding, the Right of First Refusal
shall terminate and be of no further force and effect upon (a) the occurrence of
a Change in Control, unless the Acquiring Corporation assumes the Company's
rights and obligations under the Option or substitutes a substantially
equivalent option for the Acquiring Corporation's stock for the Option, or (b)
the existence of a public market for the class of shares subject to the Right of
First Refusal. A "PUBLIC MARKET" shall be deemed to exist if (i) such stock is
listed on a national securities exchange (as that term is used in the Exchange
Act) or (ii) such stock is traded on the over-the-counter market and prices
therefor are published daily on business days in a recognized financial journal.

                                       12

<PAGE>   13



        13.    ESCROW.

               13.1 ESTABLISHMENT OF ESCROW. To ensure that shares subject to
the Unvested Share Repurchase Option will be available for repurchase, the
Company may require the Optionee to deposit the certificate evidencing the
shares which the Optionee purchases upon exercise of the Option with an agent
designated by the Company under the terms and conditions of an escrow agreement
approved by the Company. If the Company does not require such deposit as a
condition of exercise of the Option, the Company reserves the right at any time
to require the Optionee to so deposit the certificate in escrow. Upon the
occurrence of an Ownership Change Event or a change, as described in Section 9,
in the character or amount of any of the outstanding stock of the corporation
the stock of which is subject to the provisions of this Option Agreement, any
and all new, substituted or additional securities or other property to which the
Optionee is entitled by reason of the Optionee's ownership of shares of Stock
acquired upon exercise of the Option that remain, following such Ownership
Change Event or change described in Section 9, subject to the Unvested Share
Repurchase Option shall be immediately subject to the escrow to the same extent
as such shares of Stock immediately before such event. The Company shall bear
the expenses of the escrow.

               13.2 DELIVERY OF SHARES TO OPTIONEE. As soon as practicable after
the expiration of the Unvested Share Repurchase Option, but not more frequently
than twice each calendar year, the escrow agent shall deliver to the Optionee
the shares and any other property no longer subject to such restriction.

               13.3 NOTICES AND PAYMENTS. In the event the shares and any other
property held in escrow are subject to the Company's exercise of the Unvested
Share Repurchase Option or the Right of First Refusal, the notices required to
be given to the Optionee shall be given to the escrow agent, and any payment
required to be given to the Optionee shall be given to the escrow agent. Within
thirty (30) days after payment by the Company, the escrow agent shall deliver
the shares and any other property which the Company has purchased to the Company
and shall deliver the payment received from the Company to the Optionee.

        14.    STOCK DISTRIBUTIONS SUBJECT TO OPTION AGREEMENT.

               If, from time to time, there is any stock dividend, stock split
or other change, as described in Section 9, in the character or amount of any of
the outstanding stock of the corporation the stock of which is subject to the
provisions of this Option Agreement, then in such event any and all new,
substituted or additional securities to which the Optionee is entitled by reason
of the Optionee's ownership of the shares acquired upon exercise of the Option
shall be immediately subject to the Unvested Share Repurchase Option and the
Right of First Refusal with the same force and effect as the shares subject to
the Unvested Share Repurchase Option and the Right of First Refusal immediately
before such event.

        15.    LEGENDS.

               The Company may at any time place legends referencing the
Unvested Share Repurchase Option, the Right of First Refusal, and any applicable
federal, state or foreign

                                       13

<PAGE>   14


securities law restrictions on all certificates representing shares of stock
subject to the provisions of this Option Agreement. The Optionee shall, at the
request of the Company, promptly present to the Company any and all certificates
representing shares acquired pursuant to the Option in the possession of the
Optionee in order to carry out the provisions of this Section. Unless otherwise
specified by the Company, legends placed on such certificates may include, but
shall not be limited to, the following:

               15.1 "THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE SOLD,
TRANSFERRED, ASSIGNED OR HYPOTHECATED UNLESS THERE IS AN EFFECTIVE REGISTRATION
STATEMENT UNDER SUCH ACT COVERING SUCH SECURITIES, THE SALE IS MADE IN
ACCORDANCE WITH RULE 144 OR RULE 701 UNDER THE ACT, OR THE COMPANY RECEIVES AN
OPINION OF COUNSEL FOR THE HOLDER OF THESE SECURITIES REASONABLY SATISFACTORY TO
THE COMPANY, STATING THAT SUCH SALE, TRANSFER, ASSIGNMENT OR HYPOTHECATION IS
EXEMPT FROM THE REGISTRATION AND PROSPECTUS DELIVERY REQUIREMENTS OF SUCH ACT."

               15.2 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
AN UNVESTED SHARE REPURCHASE OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE
SET FORTH IN AN AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER, OR
SUCH HOLDER'S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE
PRINCIPAL OFFICE OF THIS CORPORATION."

               15.3 "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A
RIGHT OF FIRST REFUSAL OPTION IN FAVOR OF THE CORPORATION OR ITS ASSIGNEE SET
FORTH IN AN AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER, OR SUCH
HOLDER'S PREDECESSOR IN INTEREST, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL
OFFICE OF THIS CORPORATION."

        16.    PUBLIC OFFERING.

               The Optionee hereby agrees that in the event of any underwritten
public offering of stock, including an initial public offering of stock, made by
the Company pursuant to an effective registration statement filed under the
Securities Act, the Optionee shall not offer, sell, contract to sell, pledge,
hypothecate, grant any option to purchase or make any short sale of, or
otherwise dispose of any shares of stock of the Company or any rights to acquire
stock of the Company for such period of time from and after the effective date
of such registration statement as may be established by the underwriter for such
public offering; provided, however, that such period of time shall not exceed
one hundred eighty (180) days from the effective date of the registration
statement to be filed in connection with such public offering. The foregoing
limitation shall not apply to shares registered in the public offering under the
Securities Act. The Optionee shall be subject to this Section provided and only
if the officers and directors of the Company are also subject to similar
arrangements.


                                       14
<PAGE>   15

        17.    RESTRICTIONS ON TRANSFER OF SHARES.

               No shares acquired upon exercise of the Option may be sold,
exchanged, transferred (including, without limitation, any transfer to a nominee
or agent of the Optionee), assigned, pledged, hypothecated or otherwise disposed
of, including by operation of law, in any manner which violates any of the
provisions of this Option Agreement and, except pursuant to an Ownership Change
Event, until the date on which such shares become Vested Shares, and any such
attempted disposition shall be void. The Company shall not be required (a) to
transfer on its books any shares which will have been transferred in violation
of any of the provisions set forth in this Option Agreement or (b) to treat as
owner of such shares or to accord the right to vote as such owner or to pay
dividends to any transferee to whom such shares will have been so transferred.

        18.    BINDING EFFECT.

               Subject to the restrictions on transfer set forth herein, this
Option Agreement shall inure to the benefit of and be binding upon the parties
hereto and their respective heirs, executors, administrators, successors and
assigns.

        19.    TERMINATION OR AMENDMENT.

               The Board may terminate or amend the Plan or the Option at any
time; provided, however, that except as provided in Section 8.2 in connection
with a Change in Control, no such termination or amendment may adversely affect
the Option or any unexercised portion hereof without the consent of the Optionee
unless such termination or amendment is necessary to comply with any applicable
law or government regulation. No amendment or addition to this Option Agreement
shall be effective unless in writing.

        20.    NOTICES.

               Any notice required or permitted hereunder shall be given in
writing and shall be deemed effectively given (except to the extent that this
Option Agreement provides for effectiveness only upon actual receipt of such
notice) upon personal delivery or upon deposit in the United States Post Office,
by registered or certified mail, with postage and fees prepaid, addressed to the
other party at the address shown below that party's signature or at such other
address as such party may designate in writing from time to time to the other
party.

        21.    INTEGRATED AGREEMENT.

               This Option Agreement and the Plan constitute the entire
understanding and agreement of the Optionee and the Participating Company Group
with respect to the subject matter contained herein and therein and there are no
agreements, understandings, restrictions, representations, or warranties among
the Optionee and the Participating Company Group with respect to such subject
matter other than those as set forth or provided for herein or therein. To


                                       15
<PAGE>   16
the extent contemplated herein or therein, the provisions of this Option
Agreement shall survive any exercise of the Option and shall remain in full
force and effect.

        22.    APPLICABLE LAW.

               This Option Agreement shall be governed by the laws of the State
of California as such laws are applied to agreements between California
residents entered into and to be performed entirely within the State of
California.

                                       V-BITS, INC.



                                       By:
                                          --------------------------------------
                                       Title:
                                             -----------------------------------
                                       Address:   2199 Zanker Rd.
                                                  San Jose, CA 95131


        The Optionee represents that the Optionee is familiar with the terms and
provisions of this Option Agreement, including the Unvested Share Repurchase
Option set forth in Section 11 and the Right of First Refusal set forth in
Section 12, and hereby accepts the Option subject to all of the terms and
provisions thereof. The Optionee hereby agrees to accept as binding, conclusive
and final all decisions or interpretations of the Board upon any questions
arising under this Option Agreement. The undersigned acknowledges receipt of a
copy of the Plan.

                                              OPTIONEE


Date:
     --------------------                     ----------------------------------
                                              Optionee Address:

                                              ----------------------------------

                                              ----------------------------------

                                       16

<PAGE>   17

                                                     Optionee: _________________
                                                              Date: ____________


                             IMMEDIATELY EXERCISABLE

                            NONSTATUTORY STOCK OPTION

                                 EXERCISE NOTICE


V-Bits, Inc.
2199 Zanker Road.
San Jose, CA 95131


Attention: Chief Financial Officer

Ladies and Gentlemen:

        1. Exercise of Option. I was granted a nonstatutory stock option (the
"OPTION") to purchase shares of the common stock of V-Bits, Inc. (the "COMPANY")
on ___________________, 19___, pursuant to the Company's 1997 Stock Option Plan
(the "PLAN") and pursuant to the Immediately Exercisable Nonstatutory Stock
Option Agreement dated __________________, 19___ (the "OPTION AGREEMENT"). The
Grant Number of the Option is _____________. I hereby elect to exercise the
Option as to a total of __________________ shares of the common stock of the
Company (the "SHARES"), of which ________________ are Vested Shares and
______________ are Unvested Shares as determined in accordance with the Option
Agreement.

        2. Payments. Enclosed herewith is full payment in the aggregate amount
of $_____________ (representing $_______ per share) for the Shares in the manner
set forth in the Option Agreement. I authorize payroll withholding and otherwise
will make adequate provision for foreign, federal and state tax withholding
obligations of the Company, if any.

        3. Binding Effect. I agree that the Shares are being acquired in
accordance with and subject to the terms, provisions and conditions of the
Option Agreement, including the Unvested Share Repurchase Option and the Right
of First Refusal set forth therein, to all of which I hereby expressly assent.
This Agreement shall inure to the benefit of and be binding upon the my heirs,
executors, administrators, successors and assigns. I agree to deposit the
certificate or certificates evidencing the Shares, along with a blank stock
assignment separate from certificate executed by me, with an escrow agent
designated by the Company, to be held by such escrow agent pursuant to the
Company's standard Joint Escrow Instructions, an executed copy of which I have
delivered herewith.

                                       1

<PAGE>   18

        4. Transfer. I am aware that Rule 144, promulgated under the Securities
Act of 1933, which permits limited public resale of securities acquired in a
nonpublic offering, is not currently available with respect to the Shares and,
in any event, is available only if certain conditions are satisfied. I
understand that any sale of the Shares that might be made in reliance upon Rule
144 may only be made in limited amounts in accordance with the terms and
conditions of such rule and that a copy of Rule 144 will be delivered to me upon
request.

        My address of record is:

               _______________________________________________________________

               _______________________________________________________________

        My Social Security Number is: __________________________________________

        5. Election Under Section 83(b) of the Code. I understand and
acknowledge that if I am exercising the Option to purchase Unvested Shares
(i.e., shares that remain subject to the Company's Unvested Share Repurchase
Option), that I should consult with my tax advisor regarding the advisability of
filing with the Internal Revenue Service an election under Section 83(b) of the
Code, which must be filed no later than thirty (30) days after the date on which
I exercise the Option.

        I acknowledge that I have been advised to consult with a tax advisor
prior to the exercise of the Option regarding the tax consequences to me of
exercising the Option. AN ELECTION UNDER SECTION 83(b) MUST BE FILED WITHIN 30
DAYS AFTER THE DATE ON WHICH I PURCHASE SHARES. THIS TIME PERIOD CANNOT BE
EXTENDED. I ACKNOWLEDGE THAT TIMELY FILING OF A SECTION 83(b) ELECTION IS MY
SOLE RESPONSIBILITY, EVEN IF I REQUEST THE COMPANY OR ITS REPRESENTATIVES TO
FILE SUCH ELECTION ON MY BEHALF.

                                       2

<PAGE>   19




        I understand that I am purchasing the Shares pursuant to the terms of
the Plan and my Option Agreement, copies of which I have received and carefully
read and understand.

                                        Very truly yours,



                                        ----------------------------------------
                                        (Signature)

                                        ----------------------------------------
                                        (Optionee's Name Printed)


Receipt of the above is hereby acknowledged.

V-BITS, INC.

By:
   -------------------------------------
Title:
      ----------------------------------
Dated:
      ----------------------------------


                                       3

<PAGE>   1
                              CISCO SYSTEMS, INC.

                        STOCK OPTION ASSUMPTION AGREEMENT
                                  V-BITS, INC.
                             1997 STOCK OPTION PLAN


OPTIONEE:  [First_Name] [Last_Name],

               STOCK OPTION ASSUMPTION AGREEMENT effective as of the 6th day of
December, 1999, by Cisco Systems, Inc., a California corporation ("Cisco").

               WHEREAS, the undersigned individual ("Optionee") holds one or
more outstanding options to purchase shares of the common stock of V-Bits, Inc.,
a California corporation ("V-Bits"), which were granted to Optionee under the
V-Bits 1997 Stock Option Plan (the "Plan") and are each evidenced by a Stock
Option Agreement (the "Option Agreement").

               WHEREAS, V-Bits has been acquired by Cisco through the merger of
V-Bits with and into Cisco (the "Merger") pursuant to the Agreement and Plan of
Reorganization, by and between Cisco and V-Bits (the "Merger Agreement").

               WHEREAS, the provisions of the Merger Agreement require Cisco to
assume all obligations of V-Bits under all outstanding options under the Plan at
the consummation of the Merger and to issue to the holder of each outstanding
option an agreement evidencing the assumption of such option.

               WHEREAS, pursuant to the provisions of the Merger Agreement, the
exchange ratio (the "Exchange Ratio") in effect for the Merger is 0.106033318 of
a share of Cisco common stock ("Cisco Stock") for each outstanding share of
V-Bits common stock ("V-Bits Stock").

               WHEREAS, this Agreement became effective immediately upon the
consummation of the Merger (the "Effective Time") in order to reflect certain
adjustments to Optionee's outstanding options that have become necessary by
reason of the assumption of those options by Cisco in connection with the
Merger.

               NOW, THEREFORE, it is hereby agreed as follows:

               1. The number of shares of V-Bits Stock subject to the options
held by Optionee immediately prior to the Effective Time (the "V-Bits Options")
and the exercise price payable per share are set forth below. Cisco hereby
assumes, as of the Effective Time, all the duties and obligations of V-Bits
under each of the V-Bits Options. In connection with such assumption, the number
of shares of Cisco Stock purchasable under each V-Bits Option hereby assumed and
the exercise price payable thereunder have been adjusted to reflect the Exchange
Ratio. Accordingly, the number of shares of Cisco Stock subject to each V-Bits
Option hereby assumed shall be as specified for that option below, and the
adjusted exercise price payable per

<PAGE>   2

share of Cisco Stock under the assumed V-Bits Option shall also be as indicated
or that option below.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------
              V-BITS STOCK OPTIONS                            CISCO ASSUMED OPTIONS
- -------------------------------------------------------------------------------------------------
                                                      # of Shares
  # of Shares of V-Bits       Exercise Price            of Cisco           Adjusted Exercise
      Common Stock               per Share            Common Stock         Price per Share
- -------------------------------------------------------------------------------------------------
<S>                          <C>                     <C>                   <C>
      V-Bits_Shares            $V-Bits_Price         [Cisco_Shares]        [$Cisco_Price]
- -------------------------------------------------------------------------------------------------
</TABLE>

               2. The intent of the foregoing adjustments to each assumed V-Bits
Option is to assure that the spread between the aggregate fair market value of
the shares of Cisco Stock purchasable under each such option and the aggregate
exercise price as adjusted pursuant to this Agreement will, immediately after
the consummation of the Merger, be not less than the spread that existed,
immediately prior to the Merger, between the then aggregate fair market value of
the V-Bits Stock subject to the V-Bits Option and the aggregate exercise price
in effect at such time under the Option Agreement. Such adjustments are also
intended to preserve, immediately after the Merger, on a per share basis, the
same ratio of exercise price per option share to fair market value per share
that existed under the V-Bits Option immediately prior to the Merger.

               3. Your V-Bits Option may have been incorrectly documented with a
date of grant and/or an initial vesting date different from what was approved by
the Board of Directors and reflected in the Board minutes. To comply with the
terms of the Board grant, your option is hereby corrected. Your date of grant is
Grant_Date. Your initial vesting date is Vest_Date

               4. The following provisions shall govern each V-Bits Option
hereby assumed by Cisco:

                             (a) Unless the context otherwise requires, all
               references in each Option Agreement and, if applicable, in the
               Plan (as incorporated into such Option Agreement) (i) to the
               "Company" shall mean Cisco, (ii) to "Common Stock" or "Stock"
               shall mean share of Cisco Stock, (iii) to the "Board" shall mean
               the Board of Directors of Cisco and (iv) to the "Committee" shall
               mean the Compensation Committee of the Cisco Board of Directors.

                             (b) Except as modified by paragraph 3, the grant
               date and the expiration date of each assumed V-Bits Option and
               all other provisions that govern either the exercise or the
               termination of the assumed V-Bits Option shall remain the same as
               set forth in the Option Agreement applicable to that option, and
               the provisions of the Option Agreement shall accordingly govern
               and control Optionee's rights under this Agreement to purchase
               Cisco Stock.

                             (c) Pursuant to the Plan, none of your options
               assumed by Cisco in connection with the transaction will vest and
               become exercisable on an accelerated basis upon the consummation
               of the Merger. Each V-Bits Option shall be assumed by Cisco as of
               the Effective Time. Each such assumed V-Bits Option shall
               thereafter continue to vest for any remaining unvested shares of


                                       2
<PAGE>   3

               Cisco Stock subject to that option in accordance with the same
               installment vesting schedule in effect under the applicable
               Option Agreement immediately prior to the Effective Time;
               provided, however, that the number of shares subject to each such
               installment shall be adjusted to reflect the Exchange Ratio. If
               your option was originally designated on your Option Agreement as
               an Incentive Stock Option, your option as assumed by Cisco shall
               remain an Incentive Stock Option to the maximum extent allowed by
               law.

                             (d) For purposes of applying any and all provisions
               of the Option Agreement and/or the Plan relating to Optionee's
               status as an employee, consultant, or director of V-Bits,
               Optionee shall be deemed to continue in such status as an
               employee, consultant, or director for so long as Optionee renders
               services as an employee, consultant, or director to Cisco or any
               present or future Cisco subsidiary. Accordingly, the provisions
               of the Option Agreement governing the termination of the assumed
               V-Bits Options upon Optionee's cessation of service as an
               employee, consultant, or director of V-Bits shall hereafter be
               applied on the basis of Optionee's cessation of employee,
               consultant, or director status with Cisco and its subsidiaries,
               and each assumed V-Bits Option shall accordingly terminate,
               within the designated time period in effect under the Option
               Agreement for that option, generally a one (1)-month period,
               following such cessation of service as an employee, consultant,
               or director of Cisco and its subsidiaries.

                             (e) The adjusted exercise price payable for the
               Cisco Stock subject to each assumed V-Bits Option shall be
               payable in any of the forms authorized under the Option Agreement
               applicable to that option. For purposes of determining the
               holding period of any shares of Cisco Stock delivered in payment
               of such adjusted exercise price, the period for which such shares
               were held as V-Bits Stock prior to the Merger shall be taken into
               account.

                             (f) In order to exercise each assumed V-Bits
               Option, Optionee must deliver to Cisco a written notice of
               exercise in which the number of shares of Cisco Stock to be
               purchased thereunder must be indicated. The exercise notice must
               be accompanied by payment of the adjusted exercise price payable
               for the purchased shares of Cisco Stock and should be delivered
               to Cisco at the following address:

                             Cisco Systems, Inc.
                             170 West Tasman Drive
                             MS 11-3
                             San Jose, CA 95134
                             Attention:  Stock Administration

               5. Except to the extent specifically modified by this Option
Assumption Agreement, all of the terms and conditions of each Option Agreement
as in effect immediately prior to the Merger shall continue in full force and
effect and shall not in any way be amended, revised or otherwise affected by
this Stock Option Assumption Agreement.

                                       3

<PAGE>   4

               IN WITNESS WHEREOF, Cisco Systems, Inc. has caused this Stock
Option Assumption Agreement to be executed on its behalf by its duly authorized
officer as of the 6th day of December, 1999.




                                            CISCO SYSTEMS, INC.

                                            By: /s/ LARRY R. CARTER
                                               ---------------------------------
                                                  Larry R. Carter
                                                  Corporate Secretary




                                 ACKNOWLEDGMENT


               The undersigned acknowledges receipt of the foregoing Stock
Option Assumption Agreement and understands that all rights and liabilities with
respect to each of his or her V-Bits Options hereby assumed by Cisco are as set
forth in the Option Agreement, the Plan, as applicable, and such Stock Option
Assumption Agreement.



                                            ------------------------------------
                                            [FIRST_NAME] [LAST_NAME], OPTIONEE



DATED:  __________________, 1999



                                       4

<PAGE>   1
                                                            PARTIAL ACCELERATION


                               CISCO SYSTEMS, INC.

                        STOCK OPTION ASSUMPTION AGREEMENT
                                  V-BITS, INC.
                             1997 STOCK OPTION PLAN


OPTIONEE:  [First_Name] [Last_Name],

               STOCK OPTION ASSUMPTION AGREEMENT effective as of the 6th day of
December, 1999, by Cisco Systems, Inc., a California corporation ("Cisco").

               WHEREAS, the undersigned individual ("Optionee") holds one or
more outstanding options to purchase shares of the common stock of V-Bits, Inc.,
a California corporation ("V-Bits"), which were granted to Optionee under the
V-Bits 1997 Stock Option Plan (the "Plan") and are each evidenced by a Stock
Option Agreement (the "Option Agreement").

               WHEREAS, V-Bits has been acquired by Cisco through the merger of
V-Bits with and into Cisco (the "Merger") pursuant to the Agreement and Plan of
Reorganization, by and between Cisco and V-Bits (the "Merger Agreement").

               WHEREAS, the provisions of the Merger Agreement require Cisco to
assume all obligations of V-Bits under all outstanding options under the Plan at
the consummation of the Merger and to issue to the holder of each outstanding
option an agreement evidencing the assumption of such option.

               WHEREAS, pursuant to the provisions of the Merger Agreement, the
exchange ratio (the "Exchange Ratio") in effect for the Merger is 0.106033318 of
a share of Cisco common stock ("Cisco Stock") for each outstanding share of
V-Bits common stock ("V-Bits Stock").

               WHEREAS, this Agreement became effective immediately upon the
consummation of the Merger (the "Effective Time") in order to reflect certain
adjustments to Optionee's outstanding options that have become necessary by
reason of the assumption of those options by Cisco in connection with the
Merger.

               NOW, THEREFORE, it is hereby agreed as follows:

               1. The number of shares of V-Bits Stock subject to the options
held by Optionee immediately prior to the Effective Time (the "V-Bits Options")
and the exercise price payable per share are set forth below. Cisco hereby
assumes, as of the Effective Time, all the duties and obligations of V-Bits
under each of the V-Bits Options. In connection with such assumption, the number
of shares of Cisco Stock purchasable under each V-Bits Option hereby assumed and
the exercise price payable thereunder have been adjusted to reflect the Exchange
Ratio. Accordingly, the number of shares of Cisco Stock subject to each V-Bits
Option hereby assumed shall be as specified for that option below, and the
adjusted exercise price payable per

<PAGE>   2
                                                            PARTIAL ACCELERATION


share of Cisco Stock under the assumed V-Bits Option shall also be as indicated
for that option below.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------
              V-BITS STOCK OPTIONS                            CISCO ASSUMED OPTIONS
- -------------------------------------------------------------------------------------------------
                                                      # of Shares
  # of Shares of V-Bits       Exercise Price            of Cisco           Adjusted Exercise
      Common Stock               per Share            Common Stock          Price per Share
- -------------------------------------------------------------------------------------------------
<S>                            <C>                  <C>                    <C>
      V-Bits_Shares            $V-Bits_Price         [Cisco_Shares]        [$Cisco_Price]
- -------------------------------------------------------------------------------------------------
</TABLE>

               2. The intent of the foregoing adjustments to each assumed V-Bits
Option is to assure that the spread between the aggregate fair market value of
the shares of Cisco Stock purchasable under each such option and the aggregate
exercise price as adjusted pursuant to this Agreement will, immediately after
the consummation of the Merger, be not less than the spread that existed,
immediately prior to the Merger, between the then aggregate fair market value of
the V-Bits Stock subject to the V-Bits Option and the aggregate exercise price
in effect at such time under the Option Agreement. Such adjustments are also
intended to preserve, immediately after the Merger, on a per share basis, the
same ratio of exercise price per option share to fair market value per share
that existed under the V-Bits Option immediately prior to the Merger.

               3. The following provisions shall govern each V-Bits Option
hereby assumed by Cisco:

                             (a) Unless the context otherwise requires, all
               references in each Option Agreement and, if applicable, in the
               Plan (as incorporated into such Option Agreement) (i) to the
               "Company" shall mean Cisco, (ii) to "Common Stock" or "Stock"
               shall mean share of Cisco Stock, (iii) to the "Board" shall mean
               the Board of Directors of Cisco and (iv) to the "Committee" shall
               mean the Compensation Committee of the Cisco Board of Directors.

                             (b) The grant date and the expiration date of each
               assumed V-Bits Option and all other provisions that govern either
               the exercise or the termination of the assumed V-Bits Option
               shall remain the same as set forth in the Option Agreement
               applicable to that option, and the provisions of the Option
               Agreement shall accordingly govern and control Optionee's rights
               under this Agreement to purchase Cisco Stock.

                             (c) Each V-Bits Option shall be assumed by Cisco as
               of the Effective Time. Pursuant to the terms of your Option
               Agreement, seventy-five percent (75%) of the unvested shares
               subject to your option assumed by Cisco in connection with the
               transaction will vest and become exercisable on an accelerated
               basis upon the consummation of the Merger. Each such assumed
               V-Bits Option shall thereafter continue to vest for any remaining
               unvested shares of Cisco Stock subject to that option in
               accordance with the same installment vesting schedule in effect
               under the applicable Option Agreement immediately prior to the
               Effective Time; provided, however, that the number of shares
               subject to each such installment shall be adjusted to reflect the
               Exchange Ratio.


                                       2















<PAGE>   3
                                                            PARTIAL ACCELERATION


                             (d) If your option was originally designated in
               your Option Agreement as an Incentive Stock Option, your option
               as assumed by Cisco shall remain an Incentive Stock Option to the
               maximum extent allowed by law.

                             (e) For purposes of applying any and all provisions
               of the Option Agreement and/or the Plan relating to Optionee's
               status as an employee, consultant, or director of V-Bits,
               Optionee shall be deemed to continue in such status as an
               employee, consultant, or director for so long as Optionee renders
               services as an employee, consultant, or director to Cisco or any
               present or future Cisco subsidiary. Accordingly, the provisions
               of the Option Agreement governing the termination of the assumed
               V-Bits Options upon Optionee's cessation of service as an
               employee, consultant, or director of V-Bits shall hereafter be
               applied on the basis of Optionee's cessation of employee,
               consultant, or director status with Cisco and its subsidiaries,
               and each assumed V-Bits Option shall accordingly terminate,
               within the designated time period in effect under the Option
               Agreement for that option, generally a one (1)-month period,
               following such cessation of service as an employee, consultant,
               or director of Cisco and its subsidiaries.

                             (f) The adjusted exercise price payable for the
               Cisco Stock subject to each assumed V-Bits Option shall be
               payable in any of the forms authorized under the Option Agreement
               applicable to that option. For purposes of determining the
               holding period of any shares of Cisco Stock delivered in payment
               of such adjusted exercise price, the period for which such shares
               were held as V-Bits Stock prior to the Merger shall be taken into
               account.

                             (g) In order to exercise each assumed V-Bits
               Option, Optionee must deliver to Cisco a written notice of
               exercise in which the number of shares of Cisco Stock to be
               purchased thereunder must be indicated. The exercise notice must
               be accompanied by payment of the adjusted exercise price payable
               for the purchased shares of Cisco Stock and should be delivered
               to Cisco at the following address:

                             Cisco Systems, Inc.
                             170 West Tasman Drive
                             MS 11-3
                             San Jose, CA 95134
                             Attention: Stock Administration

               4. Except to the extent specifically modified by this Option
Assumption Agreement, all of the terms and conditions of each Option Agreement
as in effect immediately prior to the Merger shall continue in full force and
effect and shall not in any way be amended, revised or otherwise affected by
this Stock Option Assumption Agreement.

                                       3





<PAGE>   4
                                                            PARTIAL ACCELERATION

               IN WITNESS WHEREOF, Cisco Systems, Inc. has caused this Stock
Option Assumption Agreement to be executed on its behalf by its duly authorized
officer as of the 6th day of December, 1999.




                                            CISCO SYSTEMS, INC.

                                            By: /s/ LARRY R. CARTER
                                               ---------------------------------
                                                 Larry R. Carter
                                                 Corporate Secretary


                                 ACKNOWLEDGMENT


               The undersigned acknowledges receipt of the foregoing Stock
Option Assumption Agreement and understands that all rights and liabilities with
respect to each of his or her V-Bits Options hereby assumed by Cisco are as set
forth in the Option Agreement, the Plan, as applicable, and such Stock Option
Assumption Agreement.


                                            ------------------------------------
                                            [FIRST_NAME] [LAST_NAME], OPTIONEE



DATED:  __________________, 1999


                                       4





<PAGE>   1
                                                               FULL ACCELERATION


                              CISCO SYSTEMS, INC.

                        STOCK OPTION ASSUMPTION AGREEMENT
                                  V-BITS, INC.
                             1997 STOCK OPTION PLAN


OPTIONEE:  [First_Name] [Last_Name],

               STOCK OPTION ASSUMPTION AGREEMENT effective as of the 6th day of
December, 1999, by Cisco Systems, Inc., a California corporation ("Cisco").

               WHEREAS, the undersigned individual ("Optionee") holds one or
more outstanding options to purchase shares of the common stock of V-Bits, Inc.,
a California corporation ("V-Bits"), which were granted to Optionee under the
V-Bits 1997 Stock Option Plan (the "Plan") and are each evidenced by a Stock
Option Agreement (the "Option Agreement").

               WHEREAS, V-Bits has been acquired by Cisco through the merger of
V-Bits with and into Cisco (the "Merger") pursuant to the Agreement and Plan of
Reorganization, by and between Cisco and V-Bits (the "Merger Agreement").

               WHEREAS, the provisions of the Merger Agreement require Cisco to
assume all obligations of V-Bits under all outstanding options under the Plan at
the consummation of the Merger and to issue to the holder of each outstanding
option an agreement evidencing the assumption of such option.

               WHEREAS, pursuant to the provisions of the Merger Agreement, the
exchange ratio (the "Exchange Ratio") in effect for the Merger is 0.106033318 of
a share of Cisco common stock ("Cisco Stock") for each outstanding share of
V-Bits common stock ("V-Bits Stock").

               WHEREAS, this Agreement became effective immediately upon the
consummation of the Merger (the "Effective Time") in order to reflect certain
adjustments to Optionee's outstanding options that have become necessary by
reason of the assumption of those options by Cisco in connection with the
Merger.

               NOW, THEREFORE, it is hereby agreed as follows:

1. The number of shares of V-Bits Stock subject to the options held by Optionee
immediately prior to the Effective Time (the "V-Bits Options") and the exercise
price payable per share are set forth below. Cisco hereby assumes, as of the
Effective Time, all the duties and obligations of V-Bits under each of the
V-Bits Options. In connection with such assumption, the number of shares of
Cisco Stock purchasable under each V-Bits Option hereby assumed and the exercise
price payable thereunder have been adjusted to reflect the Exchange Ratio.
Accordingly, the number of shares of Cisco Stock subject to each V-Bits Option
hereby assumed shall be as specified for that option below, and the adjusted
exercise price payable per

<PAGE>   2
                                                              FULL ACCELERATION


share of Cisco Stock under the assumed V-Bits Option shall also be as indicated
for that option below.

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------
              V-BITS STOCK OPTIONS                            CISCO ASSUMED OPTIONS
- -------------------------------------------------------------------------------------------------
                                                      # of Shares
  # of Shares of V-Bits       Exercise Price            of Cisco           Adjusted Exercise
      Common Stock               per Share            Common Stock         Price per Share
- -------------------------------------------------------------------------------------------------
<S>                          <C>                     <C>                   <C>
      V-Bits_Shares            $V-Bits_Price         [Cisco_Shares]        [$Cisco_Price]
- -------------------------------------------------------------------------------------------------
</TABLE>

               2. The intent of the foregoing adjustments to each assumed V-Bits
Option is to assure that the spread between the aggregate fair market value of
the shares of Cisco Stock purchasable under each such option and the aggregate
exercise price as adjusted pursuant to this Agreement will, immediately after
the consummation of the Merger, be not less than the spread that existed,
immediately prior to the Merger, between the then aggregate fair market value of
the V-Bits Stock subject to the V-Bits Option and the aggregate exercise price
in effect at such time under the Option Agreement. Such adjustments are also
intended to preserve, immediately after the Merger, on a per share basis, the
same ratio of exercise price per option share to fair market value per share
that existed under the V-Bits Option immediately prior to the Merger.

               3. The following provisions shall govern each V-Bits Option
hereby assumed by Cisco:

                             (a) Unless the context otherwise requires, all
               references in each Option Agreement and, if applicable, in the
               Plan (as incorporated into such Option Agreement) (i) to the
               "Company" shall mean Cisco, (ii) to "Common Stock" or "Stock"
               shall mean share of Cisco Stock, (iii) to the "Board" shall mean
               the Board of Directors of Cisco and (iv) to the "Committee" shall
               mean the Compensation Committee of the Cisco Board of Directors.

                             (b) The grant date and the expiration date of each
               assumed V-Bits Option and all other provisions that govern either
               the exercise or the termination of the assumed V-Bits Option
               shall remain the same as set forth in the Option Agreement
               applicable to that option, and the provisions of the Option
               Agreement shall accordingly govern and control Optionee's rights
               under this Agreement to purchase Cisco Stock.

                             (c) Your V-Bits Option shall be assumed by Cisco as
               of the Effective Time. Pursuant to the terms of the Option
               Agreement, your option assumed by Cisco in connection with the
               transaction will become fully vested and exercisable upon the
               consummation of the Merger. If your option was originally
               designated on your Option Agreement as an Incentive Stock Option,
               your option as assumed by Cisco shall remain an Incentive Stock
               Option to the maximum extent allowed by law.


                             (d) For purposes of applying any and all provisions
               of the Option Agreement and/or the Plan relating to Optionee's
               status as an employee,


                                       2
<PAGE>   3

                                                              FULL ACCELERATION

               consultant, or director of V-Bits, Optionee shall be deemed to
               continue in such status as an employee, consultant, or director
               for so long as Optionee renders services as an employee,
               consultant, or director to Cisco or any present or future Cisco
               subsidiary. Accordingly, the provisions of the Option Agreement
               governing the termination of the assumed V-Bits Options upon
               Optionee's cessation of service as an employee, consultant, or
               director of V-Bits shall hereafter be applied on the basis of
               Optionee's cessation of employee, consultant, or director status
               with Cisco and its subsidiaries, and each assumed V-Bits Option
               shall accordingly terminate, within the designated time period in
               effect under the Option Agreement for that option, generally a
               one (1)-month period, following such cessation of service as an
               employee, consultant, or director of Cisco and its subsidiaries.

                             (e) The adjusted exercise price payable for the
               Cisco Stock subject to each assumed V-Bits Option shall be
               payable in any of the forms authorized under the Option Agreement
               applicable to that option. For purposes of determining the
               holding period of any shares of Cisco Stock delivered in payment
               of such adjusted exercise price, the period for which such shares
               were held as V-Bits Stock prior to the Merger shall be taken into
               account.

                             (f) In order to exercise each assumed V-Bits
               Option, Optionee must deliver to Cisco a written notice of
               exercise in which the number of shares of Cisco Stock to be
               purchased thereunder must be indicated. The exercise notice must
               be accompanied by payment of the adjusted exercise price payable
               for the purchased shares of Cisco Stock and should be delivered
               to Cisco at the following address:

                             Cisco Systems, Inc.
                             170 West Tasman Drive
                             MS 11-3
                             San Jose, CA 95134
                             Attention:  Stock Administration

               4. Except to the extent specifically modified by this Option
Assumption Agreement, all of the terms and conditions of each Option Agreement
as in effect immediately prior to the Merger shall continue in full force and
effect and shall not in any way be amended, revised or otherwise affected by
this Stock Option Assumption Agreement.


                                       3
<PAGE>   4
                                                               FULL ACCELERATION


               IN WITNESS WHEREOF, Cisco Systems, Inc. has caused this Stock
Option Assumption Agreement to be executed on its behalf by its duly authorized
officer as of the 6th day of December, 1999.




                                            CISCO SYSTEMS, INC.

                                            By: /s/  LARRY R. CARTER
                                               ---------------------------------
                                                 Larry R. Carter
                                                 Corporate Secretary




                                 ACKNOWLEDGMENT


               The undersigned acknowledges receipt of the foregoing Stock
Option Assumption Agreement and understands that all rights and liabilities with
respect to each of his or her V-Bits Options hereby assumed by Cisco are as set
forth in the Option Agreement, the Plan, as applicable, and such Stock Option
Assumption Agreement.


                                            -----------------------------------
                                            [FIRST_NAME] [LAST_NAME], OPTIONEE



DATED:  __________________, 1999



                                       4


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