C COR NET CORP
8-A12G, 1999-08-30
RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT
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<PAGE>

                                   FORM 8-A
                                   --------

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549


               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR (g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934

                                C-COR.net Corp.
                  ------------------------------------------
            (Exact name of registrant as specified in its charter)

                Pennsylvania                         24-0811591
                -------------                        ----------
 (State of incorporation or organization)       (IRS Employer ID No.)

      60 Decibel Road
 State College, Pennsylvania                                   16801
 ---------------------------                                ------------
(Address of principal executive offices)                     (Zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:

                    None

     If this Form relates to the registration of a class of securities pursuant
to Section 12(b) of the Exchange Act and is effective pursuant to General
Instruction A.(c), please check the following box.  [ ]

     If this Form relates to the registration of a class of securities pursuant
to Section 12(g) of the Exchange Act and is effective pursuant to General
Instruction A.(d), please check the following box.   [X]

     Securities Act registration statement file number to which this form
relates:      n/a        (if applicable)
          --------------

     Securities to be registered pursuant to Section 12(g) of the Act:

         Series A Junior Participating Preferred Stock Purchase Rights
         -------------------------------------------------------------
                                (Title of Class)
<PAGE>

ITEM 1.  Description of Registrant's Securities to be Registered.
         -------------------------------------------------------

          On August 17, 1999, the Board of Directors of C-COR.net Corp. (the
"Company") declared a dividend of one preferred share purchase right (a "Right")
for each outstanding share of common stock, par value $.10 per share, of the
Company (the "Common Stock").  The dividend is payable on September 9, 1999 to
the shareholders of record on August 30, 1999 (the "Record Date").  Each Right
entitles the registered holder to purchase from the Company one one-hundredth of
a share of Series A Junior Participating Preferred Stock, no par value per
share, of the Company (the "Preferred Stock") at a price of $150.00 per one one-
hundredth of a share of Preferred Stock (the "Purchase Price"), subject to
adjustment.  The description and terms of the Rights are set forth in a Rights
Agreement dated as of August 17, 1999, as the same may be amended from time to
time (the "Rights Agreement"), between the Company and American Stock Transfer &
Trust Co., as Rights Agent (the "Rights Agent").

          Until the earlier to occur of (i) 10 days following a public
announcement that a person or group of affiliated or associated persons (with
certain exceptions, an "Acquiring Person") has acquired beneficial ownership of
20% or more of the outstanding shares of Common Stock or (ii) 10 business days
(or such later date as may be determined by action of the Board of Directors
prior to such time as any person or group of affiliated persons becomes an
Acquiring Person) following the commencement of, or announcement of an intention
to make, a tender offer or exchange offer the consummation of which would result
in the beneficial ownership by a person or group of 20% or more of the
outstanding shares of Common Stock (the earlier of such dates being called the
"Distribution Date"), the Rights will be evidenced, with respect to any of the
Common Stock certificates outstanding as of the Record Date, by such Common
Stock certificate together with a copy of this Summary of Rights.  A person or
group that beneficially owned 20% or more of the outstanding shares of Common
Stock on the date the Rights Agreement was adopted will not be considered an
"Acquiring Person" unless and until such person or group acquires additional
shares of Common Stock.

          The Rights Agreement provides that, until the Distribution Date (or
earlier expiration of the Rights), the Rights will be transferred with and only
with the Common Stock. Until the Distribution Date (or earlier expiration of the
Rights), new Common Stock certificates issued after the Record Date upon
transfer or new issuances of Common Stock will contain a notation incorporating
the Rights Agreement by reference.  Until the Distribution Date (or earlier
expiration of the Rights), the surrender for transfer of any certificates for
shares of Common Stock outstanding as of the Record Date, even without such
notation or a copy of this Summary of Rights, will also constitute the transfer
of the Rights associated with the shares of Common Stock represented by such
certificate.  As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights ("Right Certificates") will be mailed to
holders of record of the Common Stock as of the close of business on the
Distribution Date and such separate Right Certificates alone will evidence the
Rights.

                                       2
<PAGE>

          The Rights are not exercisable until the Distribution Date.  The
Rights will expire on August 17, 2009 (the "Final Expiration Date"), unless the
Final Expiration Date is advanced or extended or unless the Rights are earlier
redeemed or exchanged by the Company, in each case as described below.

          The Purchase Price payable, and the number of shares of Preferred
Stock or other securities or property issuable, upon exercise of the Rights is
subject to adjustment from time to time to prevent dilution (i) in the event of
a stock dividend on, or a subdivision, combination or reclassification of, the
Preferred Stock, (ii) upon the grant to holders of the Preferred Stock of
certain rights or warrants to subscribe for or purchase Preferred Stock at a
price, or securities convertible into Preferred Stock with a conversion price,
less than the then-current market price of the Preferred Stock or (iii) upon the
distribution to holders of the Preferred Stock of evidences of indebtedness or
assets (excluding regular periodic cash dividends or dividends payable in
Preferred Stock) or of subscription rights or warrants (other than those
referred to above).

          The number of outstanding Rights is subject to adjustment in the event
of a stock dividend on the Common Stock payable in shares of Common Stock or
subdivisions, consolidations or combinations of the Common Stock occurring, in
any such case, prior to the Distribution Date.

          Shares of Preferred Stock purchasable upon exercise of the Rights will
not be redeemable.  Each share of Preferred Stock will be entitled, when, as and
if declared, to a minimum preferential quarterly dividend payment of $1.00 per
share but will be entitled to an aggregate dividend of 100 times the dividend
declared per share of Common Stock.  In the event of liquidation, dissolution or
winding up of the Company, the holders of the Preferred Stock will be entitled
to a minimum preferential payment of $1.00  per share (plus any accrued but
unpaid dividends) but will be entitled to an aggregate payment of 100 times the
payment made per share of Common Stock.  Each share of Preferred Stock will have
100 votes, voting together with the Common Stock.  Finally, in the event of any
merger, consolidation or other transaction in which outstanding shares of Common
Stock are converted or exchanged, each share of Preferred Stock will be entitled
to receive 100 times the amount received per share of Common Stock.  These
rights are protected by customary antidilution provisions.

          Because of the nature of the Preferred Stock's dividend, liquidation
and voting rights, the value of the one one-hundredth interest in a share of
Preferred Stock purchasable upon exercise of each Right should approximate the
value of one share of Common Stock.

          In the event that any person or group of affiliated or associated
persons becomes an Acquiring Person, each holder of a Right, other than Rights
beneficially owned by the Acquiring Person (which will thereupon become void),
will thereafter have the right to receive upon exercise of a Right that number
of shares of Common Stock having a market value of two times the exercise price
of the Right.

                                       3
<PAGE>

          In the event that, after a person or group has become an Acquiring
Person, the Company is acquired in a merger or other business combination
transaction or 50% or more of its consolidated assets or earning power are sold,
proper provisions will be made so that each holder of a Right (other than Rights
beneficially owned by an Acquiring Person which will have become void) will
thereafter have the right to receive upon the exercise of a Right that number of
shares of common stock of the person with whom the Company has engaged in the
foregoing transaction (or its parent) that at the time of such transaction have
a market value of two times the exercise price of the Right.

          At any time after any person or group becomes an Acquiring Person and
prior to the earlier of one of the events described in the previous paragraph or
the acquisition by such Acquiring Person of 50% or more of the outstanding
shares of Common Stock, the Board of Directors of the Company may exchange the
Rights (other than Rights owned by such Acquiring Person which will have become
void), in whole or in part, for shares of Common Stock or Preferred Stock (or a
series of the Company's preferred stock having equivalent rights, preferences
and privileges), at an exchange ratio of one share of Common Stock, or a
fractional share of Preferred Stock (or other preferred stock) equivalent in
value thereto, per Right.

          With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments require an adjustment of at least 1% in
such Purchase Price.  No fractional shares of Preferred Stock or Common Stock
will be issued (other than fractions of Preferred Stock which are integral
multiples of one one-hundredth of a share of Preferred Stock, which may, at the
election of the Company, be evidenced by depositary receipts), and in lieu
thereof an adjustment in cash will be made based on the current market price of
the Preferred Stock or the Common Stock.

          At any time prior to the time an Acquiring Person becomes such, the
Board of Directors of the Company may redeem the Rights in whole, but not in
part, at a price of $.01 per Right (the "Redemption Price").  The redemption of
the Rights may be made effective at such time, on such basis and with such
conditions as the Board of Directors in its sole discretion may establish.
Immediately upon any redemption of the Rights, the right to exercise the Rights
will terminate and the only right of the holders of Rights will be to receive
the Redemption Price.

          For so long as the Rights are then redeemable, the Company may, except
with respect to the redemption price, amend the Rights Agreement in any manner.
After the Rights are no longer redeemable, the Company may, except with respect
to the redemption price, amend the Rights Agreement in any manner that does not
adversely affect the interests of holders of the Rights.

          Until a Right is exercised or exchanged, the holder thereof, as such,
will have no rights as a shareholder of the Company, including, without
limitation, the right to vote or to receive dividends.

                                       4
<PAGE>

          A copy of the Rights Agreement specifying the terms of the Rights,
which includes as Exhibit B the form of Right Certificate, is attached hereto as
Exhibits 1 and 2 and is incorporated herein by reference. A copy of the Rights
Agreement is available free of charge from the Company. This summary description
of the Rights does not purport to be complete and is qualified in its entirety
by reference to the Rights Agreement, as the same may be amended from time to
time, which is hereby incorporated herein by reference.

                                       5
<PAGE>

Item 2.        Exhibits

1 and 2.       Form of Rights Agreement dated as of August 17, 1999 between C-
               COR.net Corp. and American Stock Transfer & Trust Co., as Rights
               Agent, which includes as Exhibit B the form of Right Certificate.
               Pursuant to the Rights Agreement, Right Certificates will not be
               mailed until the earlier of (i) ten days following a public
               announcement that a person or group of affiliated or associated
               persons has acquired beneficial ownership of 20% or more of the
               outstanding shares of Common Stock or (ii) ten business days
               following the commencement of, or announcement of an intention to
               make, a tender offer or exchange offer the consummation of which
               would result in the beneficial ownership by a person or group of
               20% or more of the outstanding shares of Common Stock. In the
               case of a person or group that beneficially owned 20% or more of
               the outstanding shares of Common Stock on the date the Rights
               Agreement was adopted, Right Certificates will not be mailed
               unless and until such person or group acquires additional shares
               of Common Stock.

                                       6
<PAGE>

                                   SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of
1934, the registrant has duly caused this registration statement to be signed on
its behalf by the undersigned, thereto duly authorized.

                              C-COR.net Corp


                              By /s/ David A. Woodle
                                 ---------------------------------------------
                                 Name:  David A. Woodle
                                 Title: President and Chief Executive Officer
                                 Date:  August 30, 1999

                                       7
<PAGE>

                                 EXHIBIT INDEX


1 and 2.  Form of Rights Agreement dated as of August 17, 1999 between C-COR.net
          Corp. and American Stock Transfer & Trust Co., as Rights Agent, which
          includes as Exhibit B the form of Right Certificate.  Pursuant to the
          Rights Agreement, Right Certificates will not be mailed until the
          earlier of (i) ten days following a public announcement that a person
          or group of affiliated or associated persons has acquired beneficial
          ownership of 20% or more of the outstanding shares of Common Stock or
          (ii) ten business days following the commencement of, or announcement
          of an intention to make, a tender offer or exchange offer the
          consummation of which would result in the beneficial ownership by a
          person or group of 20% or more of the outstanding shares of Common
          Stock.  In the case of a person or group that beneficially owned 20%
          or more of the outstanding shares of Common Stock on the date the
          Rights Agreement was adopted, Right Certificates will not be mailed
          unless and until such person or group acquires additional shares of
          Common Stock.


                                       8

<PAGE>

                                                        EXHIBIT 4







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


                                C-COR.NET CORP.

                                      AND

              AMERICAN STOCK TRANSFER & TRUST CO., AS RIGHTS AGENT


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

                                RIGHTS AGREEMENT

                          DATED AS OF AUGUST 17, 1999

              ---------------------------------------------------
<PAGE>

                               TABLE OF CONTENTS
                               -----------------
<TABLE>
<CAPTION>

<S>                                  <C>                                                                   <C>
Section 1.         Certain Definitions.......................................................................    1

Section 2.         Appointment of Rights Agent...............................................................    6

Section 3.         Issue of Right Certificates...............................................................    6

Section 4.         Form of Right Certificates................................................................    8

Section 5.         Countersignature and Registration.........................................................    8

Section 6.         Transfer, Split Up, Combination and Exchange of Right Certificates; Mutilated,
                   Destroyed, Lost or Stolen Right Certificates..............................................

Section 7.         Exercise of Rights, Purchase Price; Expiration Date of Rights.............................   10

Section 8.         Cancellation and Destruction of Right Certificates........................................   11

Section 9.         Availability of Shares of Preferred Stock.................................................   12

Section 10.        Preferred Stock Record Date...............................................................   13

Section 11.        Adjustment of Purchase Price, Number and Kind of Shares and Number
                   of Rights.................................................................................   13

Section 12.        Certificate of Adjusted Purchase Price or Number of Shares................................   23

Section 13.        Consolidation, Merger or Sale or Transfer of Assets or Earning Power......................   23

Section 14.        Fractional Rights and Fractional Shares...................................................   27

Section 15.        Rights of Action..........................................................................   28

Section 16.        Agreement of Right Holders................................................................   29

Section 17.        Right Certificate Holder Not Deemed a Shareholder.........................................   29

Section 18.        Concerning the Rights Agent...............................................................   30


                                      -i-
<PAGE>

Section 19.        Merger or Consolidation or Change of Name of Rights Agent.................................   30

Section 20.        Duties of Rights Agent....................................................................   31

Section 21.        Change of Rights Agent....................................................................   33

Section 22.        Issuance of New Right Certificates........................................................   34

Section 23.        Redemption................................................................................   35

Section 24.        Exchange..................................................................................   35

Section 25.        Notice of Certain Events..................................................................   37

Section 26.        Notices...................................................................................   37

Section 27.        Supplements and Amendments................................................................   38

Section 28.        Successors................................................................................   39

Section 29.        Benefits of this Agreement................................................................   39

Section 30.        Determinations and Actions by the Board of Directors......................................   39

Section 31.        Severability..............................................................................   39

Section 32.        Governing Law.............................................................................   39

Section 33.        Counterparts..............................................................................   39

Section 34.        Descriptive Headings......................................................................   40

</TABLE>

                                      -ii-
<PAGE>

                                RIGHTS AGREEMENT
                                ----------------


          Rights Agreement, dated as of August 17, 1999 ("Agreement"), between
C-COR.net Corp., a Pennsylvania corporation (the "Company"), and American Stock
Transfer & Trust Co., as Rights Agent (the "Rights Agent").

          The Board of Directors of the Company has authorized and declared a
dividend of one preferred share purchase right (a "Right") for each share of
Common Stock (as hereinafter defined) of the Company outstanding as of the Close
of Business (as defined below) on August 30, 1999 (the "Record Date"), each
Right representing the right to purchase one one-hundredth (subject to
adjustment) of a share of Preferred Stock (as hereinafter defined), upon the
terms and subject to the conditions herein set forth, and has further authorized
and directed the issuance of one Right (subject to adjustment as provided
herein) with respect to each share of Common Stock that shall become outstanding
between the Record Date and the earlier of the Distribution Date and the
Expiration Date (as such terms are hereinafter defined); provided, however, that
                                                         --------  -------
Rights may be issued with respect to shares of Common Stock that shall become
outstanding after the Distribution Date and prior to the Expiration Date in
accordance with Section 22.

          Accordingly, in consideration of the premises and the mutual
agreements herein set forth, the parties hereby agree as follows:

           Section 1.  Certain Definitions.  For purposes of this Agreement, the
                       -------------------
following terms have the meaning indicated:

          (a) "Acquiring Person" shall mean any Person (as such term is
hereinafter defined) who or which shall be the Beneficial Owner (as such term is
hereinafter defined) of 20% or more of the shares of Common Stock then
outstanding, but shall not include an Exempt Person (as such term is hereinafter
defined); provided, however, that (i) if the Board of Directors of the Company
          --------  -------
determines in good faith that a Person who would otherwise be an "Acquiring
Person" became such inadvertently (including, without limitation, because (A)
such Person was unaware that it beneficially owned a percentage of Common Stock
that would otherwise cause such Person to be an "Acquiring Person" or (B) such
Person was aware of the extent of its Beneficial Ownership of Common Stock but
had no actual knowledge of the consequences of such Beneficial Ownership under
this Agreement) and without any intention of changing or influencing control of
the Company, and if such Person as promptly as practicable divested or divests
itself of Beneficial Ownership of a sufficient number of shares of Common Stock
so that such Person would no longer be an "Acquiring Person," then such Person
shall not be deemed to be or to have become an "Acquiring Person" for any
purposes of this Agreement; (ii) if, as of the date hereof, any Person is the
Beneficial Owner of 20% or more of the shares of Common Stock outstanding, such
Person shall not be or become an "Acquiring Person" unless and until such time
as such Person shall become the Beneficial Owner of additional shares of Common
Stock (other than pursuant to a dividend or distribution paid or made by the
Company on the
<PAGE>

outstanding Common Stock in shares of Common Stock or pursuant to a split or
subdivision of the outstanding Common Stock), unless, upon becoming the
Beneficial Owner of such additional shares of Common Stock, such Person is not
then the Beneficial Owner of 20% or more of the shares of Common Stock then
outstanding; and (iii) no Person shall become an "Acquiring Person" as the
result of an acquisition of shares of Common Stock by the Company which, by
reducing the number of shares outstanding, increases the proportionate number of
shares of Common Stock beneficially owned by such Person to 20% or more of the
shares of Common Stock then outstanding, provided, however, that if a Person
                                         --------  -------
shall become the Beneficial Owner of 20% or more of the shares of Common Stock
then outstanding by reason of such share acquisitions by the Company and shall
thereafter become the Beneficial Owner of any additional shares of Common Stock
(other than pursuant to a dividend or distribution paid or made by the Company
on the outstanding Common Stock in shares of Common Stock or pursuant to a split
or subdivision of the outstanding Common Stock), then such Person shall be
deemed to be an "Acquiring Person" unless upon becoming the Beneficial Owner of
such additional shares of Common Stock such Person does not beneficially own 20%
or more of the shares of Common Stock then outstanding.  For all purposes of
this Agreement, any calculation of the number of shares of Common Stock
outstanding at any particular time, including for purposes of determining the
particular percentage of such outstanding shares of Common Stock of which any
Person is the Beneficial Owner, shall be made in accordance with the last
sentence of Rule 13d-3(d)(1)(i) of the General Rules and Regulations under the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), as in effect
on the date hereof.

          (b) "Affiliate" and "Associate" shall have the respective meanings
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations under
the Exchange Act, as in effect on the date hereof.

          (c) A Person shall be deemed the "Beneficial Owner" of, shall be
deemed to have "Beneficial Ownership" of and shall be deemed to "beneficially
own" any securities:

              (i) which such Person or any of such Person's Affiliates or
Associates is deemed to beneficially own, directly or indirectly, within the
meaning of Rule l3d-3 of the General Rules and Regulations under the Exchange
Act as in effect on the date hereof;

              (ii)  which such Person or any of such Person's Affiliates or
Associates has (A) the right to acquire (whether such right is exercisable
immediately or only after the passage of time) pursuant to any agreement,
arrangement or understanding (other than customary agreements with and between
underwriters and selling group members with respect to a bona fide public
offering of securities), or upon the exercise of conversion rights, exchange
rights, rights, warrants or options, or otherwise; provided, however, that a
                                                   --------  -------
Person shall not be deemed the Beneficial Owner of, or to beneficially own, (x)
securities tendered pursuant to a tender or exchange offer made by or on behalf
of such Person or any of such Person's Affiliates or Associates until such
tendered securities are accepted for purchase, (y) securities which such Person
has a right to acquire upon the exercise of Rights at any time prior to the time
that any

                                       2
<PAGE>

Person becomes an Acquiring Person or (z) securities issuable upon the exercise
of Rights from and after the time that any Person becomes an Acquiring Person if
such Rights were acquired by such Person or any of such Person's Affiliates or
Associates prior to the Distribution Date or pursuant to Section 3(a) or Section
22 hereof ("Original Rights") or pursuant to Section 11(i) or Section 11(n) with
respect to an adjustment to Original Rights; or (B) the right to vote pursuant
to any agreement, arrangement or understanding; provided, however, that a Person
                                                --------  -------
shall not be deemed the Beneficial Owner of, or to beneficially own, any
security by reason of such agreement, arrangement or understanding if the
agreement, arrangement or understanding to vote such security (1) arises solely
from a revocable proxy or consent given to such Person in response to a public
proxy or consent solicitation made pursuant to, and in accordance with, the
applicable rules and regulations promulgated under the Exchange Act and (2) is
not also then reportable on Schedule 13D under the Exchange Act (or any
comparable or successor report); or

              (iii) which are beneficially owned, directly or indirectly, by any
other Person and with respect to which such Person or any of such Person's
Affiliates or Associates has any agreement, arrangement or understanding (other
than customary agreements with and between underwriters and selling group
members with respect to a bona fide public offering of securities) for the
purpose of acquiring, holding, voting (except to the extent contemplated by the
proviso to Section 1(c)(ii)(B)) or disposing of such securities of the Company;
provided, however, that no Person who is an officer, director or employee of an
- --------  -------
Exempt Person shall be deemed, solely by reason of such Person's status or
authority as such, to be the "Beneficial Owner" of, to have "Beneficial
Ownership" of or to "beneficially own" any securities that are "beneficially
owned" (as defined in this Section l(c)), including, without limitation, in a
fiduciary capacity, by an Exempt Person or by any other such officer, director
or employee of an Exempt Person.

          (d) "Business Day" shall mean any day other than a Saturday, a Sunday
or a day on which banking institutions in the State of New York or the city in
which the principal office of the Rights Agent is located are authorized or
obligated by law or executive order to close.

          (e) "Close of Business" on any given date shall mean 5:00 P.M., New
York City time, on such date; provided, however, that if such date is not a
                              --------  -------
Business Day it shall mean 5:00 P.M., New York City time, on the next succeeding
Business Day.

          (f) "Common Stock" when used with reference to the Company shall mean
the Common Stock, presently par value $.10 per share, of the Company.  "Common
Stock" when used with reference to any Person other than the Company shall mean
the common stock (or, in the case of an unincorporated entity, the equivalent
equity interest) with the greatest voting power of such other Person or, if such
other Person is a subsidiary of another Person, the Person or Persons which
ultimately control such first-mentioned Person.

                                       3
<PAGE>

          (g) "Common Stock Equivalents" shall have the meaning set forth in
Section 11(a)(iii) hereof.

          (h) "Current Value" shall have the meaning set forth in Section
11(a)(iii) hereof.

          (i) "Distribution Date" shall have the meaning set forth in Section 3
hereof.

          (j) "Equivalent Preferred Shares" shall have the meaning set forth in
Section 11(b) hereof.

          (k) "Exempt Person" shall mean the Company or any Subsidiary (as such
term is hereinafter defined) of the Company, in each case including, without
limitation, in its fiduciary capacity, or any employee benefit plan of the
Company or of any Subsidiary of the Company, or any entity or trustee holding
Common Stock for or pursuant to the terms of any such plan or for the purpose of
funding any such plan or funding other employee benefits for employees of the
Company or of any Subsidiary of the Company.

          (l) "Exchange Ratio" shall have the meaning set forth in Section 24
hereof.

          (m) "Expiration Date" shall have the meaning set forth in Section 7
hereof.

          (n) "Flip-In Event" shall have the meaning set forth in Section
11(a)(ii) hereof.

          (o) "Final Expiration Date" shall have the meaning set forth in
Section 7 hereof.

          (p) "Nasdaq" shall mean The Nasdaq Stock Market.

          (q) "New York Stock Exchange" shall mean the New York Stock Exchange,
Inc.

          (r) "Person" shall mean any individual, firm, corporation,
partnership, limited liability company, trust or other entity, and shall include
any successor (by merger or otherwise) to such entity.

          (s) "Preferred Stock" shall mean the Series A Junior Participating
Preferred Stock, no par value per share, of the Company having the rights and
preferences set forth in the Form of Statement With Respect to Shares attached
to this Agreement as Exhibit A.

          (t) "Principal Party" shall have the meaning set forth in Section
13(b) hereof.

                                       4
<PAGE>

          (u) "Redemption Date" shall have the meaning set forth in Section 7
hereof.

          (v) "Redemption Price" shall have the meaning set forth in Section 23
hereof.

          (w) "Right Certificate" shall have the meaning set forth in Section 3
hereof.

          (x) "Securities Act" shall mean the Securities Act of 1933, as
amended.

          (y) "Section 11(a)(ii) Trigger Date" shall have the meaning set forth
in Section 11(a)(iii) hereof.

          (z) "Spread" shall have the meaning set forth in Section 11(a)(iii)
hereof.

          (aa) "Stock Acquisition Date" shall mean the first date of public
announcement (which, for purposes of this definition, shall include, without
limitation, a report filed pursuant to Section 13(d) of the Exchange Act) by the
Company or an Acquiring Person that an Acquiring Person has become such, or such
earlier date as a majority of the Board of Directors shall become aware of the
existence of an Acquiring Person.

          (bb) "Subsidiary" of any Person shall mean any corporation or other
entity of which securities or other ownership interests having ordinary voting
power sufficient to elect a majority of the board of directors or other persons
performing similar functions are beneficially owned, directly or indirectly, by
such Person, and any corporation or other entity that is otherwise controlled by
such Person.

          (cc) "Substitution Period" shall have the meaning set forth in Section
11(a)(iii) hereof.

          (dd) "Summary of Rights" shall have the meaning set forth in Section 3
hereof.

          (ee) "Trading Day" shall have the meaning set forth in Section
11(d)(i) hereof.

          Section 2.  Appointment of Rights Agent.  The Company hereby appoints
                      ---------------------------
the Rights Agent to act as agent for the Company and the holders of the Rights
(who, in accordance with Section 3 hereof, shall prior to the Distribution Date
be the holders of Common Stock) in accordance with the terms and conditions
hereof, and the Rights Agent hereby accepts such appointment.  The Company may
from time to time appoint such co-Rights Agents as it may deem necessary or
desirable.

           Section 3.  Issue of Right Certificates.
                       ---------------------------

          (a) Until the Close of Business on the earlier of (i) the tenth day
after the Stock Acquisition Date or (ii) the tenth Business Day (or such later
date as may be determined by

                                       5
<PAGE>

action of the Board of Directors prior to such time as any Person becomes an
Acquiring Person) after the date of the commencement by any Person (other than
an Exempt Person) of, or of the first public announcement of the intention of
such Person (other than an Exempt Person) to commence, a tender or exchange
offer the consummation of which would result in any Person (other than an Exempt
Person) becoming the Beneficial Owner of shares of Common Stock aggregating 20%
or more of the Common Stock then outstanding (the earlier of such dates being
herein referred to as the "Distribution Date", provided, however, that if either
                                               --------  -------
of such dates occurs after the date of this Agreement and on or prior to the
Record Date, then the Distribution Date shall be the Record Date), (x) the
Rights will be evidenced (subject to the provisions of Section 3(b) hereof) by
the certificates for Common Stock registered in the names of the holders thereof
and not by separate Right Certificates, and (y) the Rights will be transferable
only in connection with the transfer of Common Stock. As soon as practicable
after the Distribution Date, the Company will prepare and execute, the Rights
Agent will countersign and the Company will send or cause to be sent (and the
Rights Agent will, if requested, send) by first-class, insured, postage-prepaid
mail, to each record holder of Common Stock as of the close of business on the
Distribution Date (other than any Acquiring Person or any Associate or Affiliate
of an Acquiring Person), at the address of such holder shown on the records of
the Company, a Right Certificate, in substantially the form of Exhibit B hereto
(a "Right Certificate"), evidencing one Right (subject to adjustment as provided
herein) for each share of Common Stock so held. As of the Distribution Date, the
Rights will be evidenced solely by such Right Certificates.

          (b) On the Record Date, or as soon as practicable thereafter, the
Company will send a copy of a Summary of Rights to Purchase Shares of Preferred
Stock, in substantially the form of Exhibit C hereto (the "Summary of Rights"),
by first-class, postage-prepaid mail, to each record holder of Common Stock as
of the Close of Business on the Record Date (other than any Acquiring Person or
any Associate or Affiliate of any Acquiring Person), at the address of such
holder shown on the records of the Company.  With respect to certificates for
Common Stock outstanding as of the Record Date, until the Distribution Date, the
Rights will be evidenced by such certificates registered in the names of the
holders thereof together with the Summary of Rights.  Until the Distribution
Date (or, if earlier, the Expiration Date), the surrender for transfer of any
certificate for Common Stock outstanding on the Record Date, with or without a
copy of the Summary of Rights, shall also constitute the transfer of the Rights
associated with the Common Stock represented thereby.

          (c) Certificates issued for Common Stock (including, without
limitation, upon transfer of outstanding Common Stock, disposition of Common
Stock out of treasury stock or issuance or reissuance of Common Stock out of
authorized but unissued shares) after the Record Date but prior to the earlier
of the Distribution Date and the Expiration Date shall have impressed on,
printed on, written on or otherwise affixed to them the following legend:

          This certificate also evidences and entitles the holder hereof to
          certain rights as set forth in a Rights Agreement between C-COR.net
          Corp. (the "Company") and American Stock Transfer &

                                       6
<PAGE>

          Trust Co., as Rights Agent, dated as of August 17, 1999 as the same
          may be amended from time to time (the "Rights Agreement"), the terms
          of which are hereby incorporated herein by reference and a copy of
          which is on file at the principal executive offices of the Company.
          Under certain circumstances, as set forth in the Rights Agreement,
          such Rights will be evidenced by separate certificates and will no
          longer be evidenced by this certificate. The Company will mail to the
          holder of this certificate a copy of the Rights Agreement without
          charge after receipt of a written request therefor. Under certain
                                                              -------------
          circumstances, as set forth in the Rights Agreement, Rights owned by
          --------------------------------------------------------------------
          or transferred to any Person who is or becomes an Acquiring Person (as
          ----------------------------------------------------------------------
          defined in the Rights Agreement) and certain transferees thereof will
          ---------------------------------------------------------------------
          become null and void and will no longer be transferable.
          --------------------------------------------------------

With respect to such certificates containing the foregoing legend, until the
Distribution Date the Rights associated with the Common Stock represented by
such certificates shall be evidenced by such certificates alone, and the
surrender for transfer of any such certificate, except as otherwise provided
herein, shall also constitute the transfer of the Rights associated with the
Common Stock represented thereby.  In the event that the Company purchases or
otherwise acquires any Common Stock after the Record Date but prior to the
Distribution Date, any Rights associated with such Common Stock shall be deemed
canceled and retired so that the Company shall not be entitled to exercise any
Rights associated with the Common Stock which are no longer outstanding.

          Notwithstanding this paragraph (c), the omission of a legend shall not
affect the enforceability of any part of this Agreement or the rights of any
holder of the Rights.

          Section 4.  Form of Right Certificates.  The Right Certificates (and
                      --------------------------
the forms of election to purchase shares and of assignment to be printed on the
reverse thereof) shall be substantially in the form set forth in Exhibit B
hereto and may have such marks of identification or designation and such
legends, summaries or endorsements printed thereon as the Company may deem
appropriate and as are not inconsistent with the provisions of this Agreement,
or as may be required to comply with any applicable law or with any rule or
regulation made pursuant thereto or with any rule or regulation of any stock
exchange or interdealer quotation system on which the Rights may from time to
time be listed or quoted, or to conform to usage.  Subject to the provisions of
Sections 11, 13 and 22 hereof, the Right Certificates shall entitle the holders
thereof to purchase such number of one one-hundredths of a share of Preferred
Stock as shall be set forth therein at the price per one one-hundredth of a
share of Preferred Stock set forth therein (the "Purchase Price"), but the
number of such one one-hundredths of a share of Preferred Stock and the Purchase
Price shall be subject to adjustment as provided herein.

           Section 5.  Countersignature and Registration.
                       ---------------------------------

                                       7
<PAGE>

          (a) The Right Certificates shall be executed on behalf of the Company
by the President of the Company, either manually or by facsimile signature,
shall have affixed thereto the Company's seal or a facsimile thereof and shall
be attested by the Secretary of the Company, either manually or by facsimile
signature.  The Right Certificates shall be manually countersigned by the Rights
Agent and shall not be valid for any purpose unless countersigned. In case any
officer of the Company who shall have signed any of the Right Certificates shall
cease to be such officer of the Company before countersignature by the Rights
Agent and issuance and delivery by the Company, such Right Certificates,
nevertheless, may be countersigned by the Rights Agent and issued and delivered
by the Company with the same force and effect as though the Person who signed
such Right Certificates had not ceased to be such officer of the Company; and
any Right Certificate may be signed on behalf of the Company by any Person who,
at the actual date of the execution of such Right Certificate, shall be a proper
officer of the Company to sign such Right Certificate, although at the date of
the execution of this Agreement any such Person was not such an officer.

          (b) Following the Distribution Date, the Rights Agent will keep or
cause to be kept, at an office or agency designated for such purpose, books for
registration and transfer of the Right Certificates issued hereunder.  Such
books shall show the names and addresses of the respective holders of the Right
Certificates, the number of Rights evidenced on its face by each of the Right
Certificates and the date of each of the Right Certificates.

          Section 6.  Transfer, Split Up, Combination and Exchange of Right
                      -----------------------------------------------------
Certificates; Mutilated, Destroyed, Lost or Stolen Right Certificates.
- ---------------------------------------------------------------------

          (a) Subject to the provisions of Sections 7(e), 11(a)(ii), 13 and 14
hereof, at any time after the Distribution Date and prior to the Expiration
Date, any Right Certificate or Right Certificates may be transferred, split up,
combined or exchanged for another Right Certificate or Right Certificates,
entitling the registered holder to purchase a like number of one one-hundredths
of a share of Preferred Stock as the Right Certificate or Right Certificates
surrendered then entitled such holder to purchase.  Any registered holder
desiring to transfer, split up, combine or exchange any Right Certificate or
Right Certificates shall make such request in writing delivered to the Rights
Agent, and shall surrender the Right Certificate or Right Certificates to be
transferred, split up, combined or exchanged at the office or agency of the
Rights Agent designated for such purpose.  Thereupon the Rights Agent shall
countersign and deliver to the Person entitled thereto a Right Certificate or
Right Certificates, as the case may be, as so requested.  The Company may
require payment of a sum sufficient to cover any tax or governmental charge that
may be imposed in connection with any transfer, split up, combination or
exchange of Right Certificates.

          (b) Subject to the provisions of Section 11(a)(ii) hereof, at any time
after the Distribution Date and prior to the Expiration Date, upon receipt by
the Company and the Rights Agent of evidence reasonably satisfactory to them of
the loss, theft, destruction or mutilation of a Right Certificate, and, in case
of loss, theft or destruction, of indemnity or security reasonably

                                       8
<PAGE>

satisfactory to them, and, at the Company's request, reimbursement to the
Company and the Rights Agent of all reasonable expenses incidental thereto, and
upon surrender to the Rights Agent and cancellation of the Right Certificate if
mutilated, the Company will make and deliver a new Right Certificate of like
tenor to the Rights Agent for delivery to the registered holder in lieu of the
Right Certificate so lost, stolen, destroyed or mutilated.

  Section 7.  Exercise of Rights, Purchase Price; Expiration Date of Rights.
              -------------------------------------------------------------

          (a) Except as otherwise provided herein, the Rights shall become
exercisable on the Distribution Date, and thereafter the registered holder of
any Right Certificate may, subject to Section 11(a)(ii) hereof and except as
otherwise provided herein, exercise the Rights evidenced thereby in whole or in
part upon surrender of the Right Certificate, with the form of election to
purchase on the reverse side thereof duly executed, to the Rights Agent at the
office or agency of the Rights Agent designated for such purpose, together with
payment of the aggregate Purchase Price with respect to the total number of one
one-hundredths of a share of Preferred Stock (or other securities, cash or other
assets, as the case may be) as to which the Rights are exercised, at any time
which is both after the Distribution Date and prior to the time (the "Expiration
Date") that is the earliest of (i) the Close of Business on August 17, 2009 (the
"Final Expiration Date"), (ii) the time at which the Rights are redeemed as
provided in Section 23 hereof (the "Redemption Date") or (iii) the time at which
such Rights are exchanged as provided in Section 24 hereof.

          (b) The Purchase Price shall be initially $150.00 for each one one-
hundredth of a share of Preferred Stock purchasable upon the exercise of a
Right.  The Purchase Price and the number of one one-hundredths of a share of
Preferred Stock or other securities or property to be acquired upon exercise of
a Right shall be subject to adjustment from time to time as provided in Sections
11 and 13 hereof and shall be payable in lawful money of the United States of
America in accordance with paragraph (c) of this Section 7.

          (c) Except as otherwise provided herein, upon receipt of a Right
Certificate representing exercisable Rights, with the form of election to
purchase duly executed, accompanied by payment of the aggregate Purchase Price
for the shares of Preferred Stock to be purchased and an amount equal to any
applicable transfer tax required to be paid by the holder of such Right
Certificate in accordance with Section 9 hereof, in cash or by certified check,
cashier's check or money order payable to the order of the Company, the Rights
Agent shall thereupon promptly (i) (A) requisition from any transfer agent of
the Preferred Stock certificates for the number of shares of Preferred Stock to
be purchased and the Company hereby irrevocably authorizes its transfer agent to
comply with all such requests, or (B) requisition from the depositary agent
depositary receipts representing interests in such number of one one-hundredths
of a share of Preferred Stock as are to be purchased (in which case certificates
for the Preferred Stock represented by such receipts shall be deposited by the
transfer agent with the depositary agent) and the Company hereby directs the
depositary agent to comply with such request, (ii) when appropriate, requisition
from the Company the amount of cash to be paid in lieu of

                                       9
<PAGE>

issuance of fractional shares in accordance with Section 14 hereof, (iii)
promptly after receipt of such certificates or depositary receipts, cause the
same to be delivered to or upon the order of the registered holder of such Right
Certificate, registered in such name or names as may be designated by such
holder and (iv) when appropriate, after receipt, promptly deliver such cash to
or upon the order of the registered holder of such Right Certificate.

          (d) Except as otherwise provided herein, in case the registered holder
of any Right Certificate shall exercise less than all of the Rights evidenced
thereby, a new Right Certificate evidencing Rights equivalent to the exercisable
Rights remaining unexercised shall be issued by the Rights Agent to the
registered holder of such Right Certificate or to his duly authorized assigns,
subject to the provisions of Section 14 hereof.

          (e) Notwithstanding anything in this Agreement to the contrary,
neither the Rights Agent nor the Company shall be obligated to undertake any
action with respect to a registered holder of Rights upon the occurrence of any
purported transfer or exercise of Rights pursuant to Section 6 hereof or this
Section 7 unless such registered holder shall have (i) completed and signed the
certificate contained in the form of assignment or form of election to purchase
set forth on the reverse side of the Rights Certificate surrendered for such
transfer or exercise and (ii) provided such additional evidence of the identity
of the Beneficial Owner (or former Beneficial Owner) thereof as the Company
shall reasonably request.

          Section 8.  Cancellation and Destruction of Right Certificates.  All
                      --------------------------------------------------
Right Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or to any of its
agents, be delivered to the Rights Agent for cancellation or in canceled form,
or, if surrendered to the Rights Agent, shall be canceled by it, and no Right
Certificates shall be issued in lieu thereof except as expressly permitted by
any of the provisions of this Agreement.  The Company shall deliver to the
Rights Agent for cancellation and retirement, and the Rights Agent shall so
cancel and retire, any other Right Certificate purchased or acquired by the
Company otherwise than upon the exercise thereof.  The Rights Agent shall
deliver all canceled Right Certificates to the Company, or shall, at the written
request of the Company, destroy such canceled Right Certificates, and in such
case shall deliver a certificate of destruction thereof to the Company.

           Section 9.  Availability of Shares of Preferred Stock.
                       -----------------------------------------

          (a) The Company covenants and agrees that it will cause to be reserved
and kept available out of its authorized and unissued shares of Preferred Stock
or any shares of Preferred Stock held in its treasury, the number of shares of
Preferred Stock that will be sufficient to permit the exercise in full of all
outstanding Rights.

          (b) So long as the shares of Preferred Stock issuable upon the
exercise of Rights may be listed or admitted to trading on any national
securities exchange, or quoted on Nasdaq, the Company shall use its best efforts
to cause, from and after such time as the Rights

                                       10
<PAGE>

become exercisable, all shares reserved for such issuance to be listed or
admitted to trading on such exchange, or quoted on Nasdaq, upon official notice
of issuance upon such exercise.

          (c) From and after such time as the Rights become exercisable, the
Company shall use its best efforts, if then necessary to permit the issuance of
shares of Preferred Stock upon the exercise of Rights, to register and qualify
such shares of Preferred Stock under the Securities Act and any applicable state
securities or "Blue Sky" laws (to the extent exemptions therefrom are not
available), cause such registration statement and qualifications to become
effective as soon as possible after such filing and keep such registration and
qualifications effective until the earlier of the date as of which the Rights
are no longer exercisable for such securities and the Expiration Date.  The
Company may temporarily suspend, for a period of time not to exceed 90 days, the
exercisability of the Rights in order to prepare and file a registration
statement under the Securities Act and permit it to become effective.  Upon any
such suspension, the Company shall issue a public announcement stating that the
exercisability of the Rights has been temporarily suspended, as well as a public
announcement at such time as the suspension is no longer in effect.
Notwithstanding any provision of this Agreement to the contrary, the Rights
shall not be exercisable in any jurisdiction unless the requisite qualification
in such jurisdiction shall have been obtained and until a registration statement
under the Securities Act (if required) shall have been declared effective.

          (d) The Company covenants and agrees that it will take all such action
as may be necessary to ensure that all shares of Preferred Stock delivered upon
exercise of Rights shall, at the time of delivery of the certificates therefor
(subject to payment of the Purchase Price), be duly and validly authorized and
issued and fully paid and nonassessable shares.

          (e) The Company further covenants and agrees that it will pay when due
and payable any and all federal and state transfer taxes and charges which may
be payable in respect of the issuance or delivery of the Right Certificates or
of any shares of Preferred Stock upon the exercise of Rights.  The Company shall
not, however, be required to pay any transfer tax which may be payable in
respect of any transfer or delivery of Right Certificates to a Person other
than, or the issuance or delivery of certificates or depositary receipts for the
Preferred Stock in a name other than that of, the registered holder of the Right
Certificate evidencing Rights surrendered for exercise or to issue or deliver
any certificates or depositary receipts for Preferred Stock upon the exercise of
any Rights until any such tax shall have been paid (any such tax being payable
by the holder of such Right Certificate at the time of surrender) or until it
has been established to the Company's reasonable satisfaction that no such tax
is due.

          Section 10.  Preferred Stock Record Date.  Each Person in whose name
                       ---------------------------
any certificate for Preferred Stock is issued upon the exercise of Rights shall
for all purposes be deemed to have become the holder of record of the shares of
Preferred Stock represented thereby on, and such certificate shall be dated, the
date upon which the Right Certificate evidencing such Rights was duly
surrendered and payment of the Purchase Price (and any applicable transfer
taxes) was made; provided, however, that if the date of such surrender and
                 --------  -------
payment is a date

                                       11
<PAGE>

upon which the Preferred Stock transfer books of the Company are closed, such
Person shall be deemed to have become the record holder of such shares on, and
such certificate shall be dated, the next succeeding Business Day on which the
Preferred Stock transfer books of the Company are open. Prior to the exercise of
the Rights evidenced thereby, the holder of a Right Certificate shall not be
entitled to any rights of a holder of Preferred Stock for which the Rights shall
be exercisable, including, without limitation, the right to vote or to receive
dividends or other distributions, and shall not be entitled to receive any
notice of any proceedings of the Company, except as provided herein.

          Section 11.  Adjustment of Purchase Price, Number and Kind of Shares
                       -------------------------------------------------------
and Number of Rights.  The Purchase Price, the number of shares of Preferred
- --------------------
Stock or other securities or property purchasable upon exercise of each Right
and the number of Rights outstanding are subject to adjustment from time to time
as provided in this Section 11.

          (a)(i)  In the event the Company shall at any time after the date of
this Agreement (A) declare and pay a dividend on the Preferred Stock payable in
shares of Preferred Stock, (B) subdivide the outstanding Preferred Stock, (C)
combine the outstanding Preferred Stock into a smaller number of shares of
Preferred Stock or (D) issue any shares of its capital stock in a
reclassification of the Preferred Stock (including any such reclassification in
connection with a consolidation or merger in which the Company is the continuing
or surviving corporation), except as otherwise provided in this Section 11(a),
the Purchase Price in effect at the time of the record date for such dividend or
of the effective date of such subdivision, combination or reclassification, and
the number and kind of shares of capital stock issuable on such date, shall be
proportionately adjusted so that the holder of any Right exercised after such
time shall be entitled to receive the aggregate number and kind of shares of
capital stock which, if such Right had been exercised immediately prior to such
date and at a time when the Preferred Stock transfer books of the Company were
open, the holder would have owned upon such exercise and been entitled to
receive by virtue of such dividend, subdivision, combination or
reclassification; provided, however, that in no event shall the consideration to
                  --------  -------
be paid upon the exercise of one Right be less than the aggregate par value of
the shares of capital stock of the Company issuable upon exercise of one Right.

          (ii) Subject to Section 24 of this Agreement, in the event any Person
becomes an Acquiring Person (the first occurrence of such event being referred
to hereinafter as the "Flip-In Event"), then (A) the Purchase Price shall be
adjusted to be the Purchase Price in effect immediately prior to the Flip-In
Event multiplied by the number of one one-hundredths of a share of Preferred
Stock for which a Right was exercisable immediately prior to such Flip-In Event,
whether or not such Right was then exercisable, and (B) each holder of a Right,
except as otherwise provided in this Section 11(a)(ii) and Section 11(a)(iii)
hereof, shall thereafter have the right to receive, upon exercise thereof at a
price equal to the Purchase Price (as so adjusted), in accordance with the terms
of this Agreement and in lieu of shares of Preferred Stock, such number of
shares of Common Stock as shall equal the result obtained by dividing the
Purchase Price (as so adjusted) by 50% of the current per share market price of
the Common Stock

                                       12
<PAGE>

(determined pursuant to Section 11(d) hereof) on the date of such Flip-In Event;
provided, however, that the Purchase Price (as so adjusted) and the number of
- --------  -------
shares of Common Stock so receivable upon exercise of a Right shall, following
the Flip-In Event, be subject to further adjustment as appropriate in accordance
with Section 11(f) hereof. Notwithstanding anything in this Agreement to the
contrary, however, from and after the Flip-In Event, any Rights that are
beneficially owned by (x) any Acquiring Person (or any Affiliate or Associate of
any Acquiring Person), (y) a transferee of any Acquiring Person (or any such
Affiliate or Associate) who becomes a transferee after the Flip-In Event or (z)
a transferee of any Acquiring Person (or any such Affiliate or Associate) who
became a transferee prior to or concurrently with the Flip-In Event pursuant to
either (I) a transfer from the Acquiring Person to holders of its equity
securities or to any Person with whom it has any continuing agreement,
arrangement or understanding regarding the transferred Rights or (II) a transfer
which the Board of Directors has determined is part of a plan, arrangement or
understanding which has the purpose or effect of avoiding the provisions of this
paragraph, and subsequent transferees of such Persons, shall be void without any
further action and any holder of such Rights shall thereafter have no rights
whatsoever with respect to such Rights under any provision of this Agreement.
The Company shall use all reasonable efforts to ensure that the provisions of
this Section 11(a)(ii) are complied with, but shall have no liability to any
holder of Right Certificates or other Person as a result of its failure to make
any determinations with respect to an Acquiring Person or its Affiliates,
Associates or transferees hereunder. From and after the Flip-In Event, no Right
Certificate shall be issued pursuant to Section 3 or Section 6 hereof that
represents Rights that are or have become void pursuant to the provisions of
this paragraph, and any Right Certificate delivered to the Rights Agent that
represents Rights that are or have become void pursuant to the provisions of
this paragraph shall be canceled. From and after the occurrence of an event
specified in Section 13(a) hereof, any Rights that theretofore have not been
exercised pursuant to this Section 11(a)(ii) shall thereafter be exercisable
only in accordance with Section 13 and not pursuant to this Section 11(a)(ii).

          (iii)     The Company may at its option substitute for a share of
Common Stock issuable upon the exercise of Rights in accordance with the
foregoing subparagraph (ii) a number of shares of Preferred Stock or fraction
thereof such that the current per share market price of one share of Preferred
Stock multiplied by such number or fraction is equal to the current per share
market price of one share of Common Stock.  In the event that there shall not be
sufficient shares of Common Stock issued but not outstanding or authorized but
unissued to permit the exercise in full of the Rights in accordance with the
foregoing subparagraph (ii), the Board of Directors shall, to the extent
permitted by applicable law and any material agreements then in effect to which
the Company is a party (A) determine the excess (such excess, the "Spread") of
(1) the value of the shares of Common Stock issuable upon the exercise of a
Right in accordance with the foregoing subparagraph (ii) (the "Current Value")
over (2) the Purchase Price (as adjusted in accordance with the foregoing
subparagraph (ii)), and (B) with respect to each Right (other than Rights which
have become void pursuant to the foregoing subparagraph (ii)), make adequate
provision to substitute for the shares of Common Stock issuable in accordance
with the foregoing subparagraph (ii) upon exercise of the Right and payment of
the Purchase Price (as adjusted in

                                       13
<PAGE>

accordance therewith), (1) cash, (2) a reduction in such Purchase Price, (3)
shares of Preferred Stock or other equity securities of the Company (including,
without limitation, shares or fractions of shares of preferred stock which, by
virtue of having dividend, voting and liquidation rights substantially
comparable to those of the shares of Common Stock, are deemed in good faith by
the Board of Directors to have substantially the same value as the shares of
Common Stock (such shares of Preferred Stock and shares or fractions of shares
of preferred stock are hereinafter referred to as "Common Stock Equivalents")),
(4) debt securities of the Company, (5) other assets, or (6) any combination of
the foregoing, having a value which, when added to the value of the shares of
Common Stock issued upon exercise of such Right, shall have an aggregate value
equal to the Current Value (less the amount of any reduction in such Purchase
Price), where such aggregate value has been determined by the Board of Directors
upon the advice of a nationally recognized investment banking firm selected in
good faith by the Board of Directors; provided, however, that if the Company
                                      --------  -------
shall not make adequate provision to deliver value pursuant to clause (B) above
within thirty (30) days following the Flip-In Event (the "Section 11(a)(ii)
Trigger Date"), then the Company shall be obligated to deliver, to the extent
permitted by applicable law and any material agreements then in effect to which
the Company is a party, upon the surrender for exercise of a Right and without
requiring payment of such Purchase Price, shares of Common Stock (to the extent
available), and then, if necessary, such number or fractions of shares of
Preferred Stock (to the extent available) and then, if necessary, cash, which
shares and/or cash have an aggregate value equal to the Spread. If, upon the
occurrence of the Flip-In Event, the Board of Directors shall determine in good
faith that it is likely that sufficient additional shares of Common Stock could
be authorized for issuance upon exercise in full of the Rights, then, if the
Board of Directors so elects, the thirty (30) day period set forth above may be
extended to the extent necessary, but not more than ninety (90) days after the
Section 11(a) (ii) Trigger Date, in order that the Company may seek shareholder
approval for the authorization of such additional shares (such thirty (30) day
period, as it may be extended, is herein called the "Substitution Period"). To
the extent that the Company determines that some action need be taken pursuant
to the second and/or third sentence of this Section 11(a)(iii), the Company (x)
shall provide, subject to Section 11(a)(ii) hereof and the last sentence of this
Section 11(a)(iii) hereof, that such action shall apply uniformly to all
outstanding Rights and (y) may suspend the exercisability of the Rights until
the expiration of the Substitution Period in order to seek any authorization of
additional shares and/or to decide the appropriate form of distribution to be
made pursuant to such second sentence and to determine the value thereof. In the
event of any such suspension, the Company shall issue a public announcement
stating that the exercisability of the Rights has been temporarily suspended, as
well as a public announcement at such time as the suspension is no longer in
effect. For purposes of this Section 11(a)(iii), the value of the shares of
Common Stock shall be the current per share market price (as determined pursuant
to Section 11(d)(i)) on the Section 11(a)(ii) Trigger Date and the per share or
fractional value of any Common Stock Equivalent shall be deemed to equal the
current per share market price of the Common Stock. The Board of Directors of
the Company may, but shall not be required to, establish procedures to allocate
the right to receive shares of Common Stock upon the exercise of the Rights
among holders of Rights pursuant to this Section 11(a)(iii).

                                       14
<PAGE>

          (b) In case the Company shall fix a record date for the issuance of
rights, options or warrants to all holders of Preferred Stock entitling them
(for a period expiring within 45 calendar days after such record date) to
subscribe for or purchase Preferred Stock (or shares having the same rights,
privileges and preferences as the Preferred Stock ("equivalent preferred
shares")) or securities convertible into Preferred Stock or equivalent preferred
shares at a price per share of Preferred Stock or equivalent preferred shares
(or having a conversion price per share, if a security convertible into shares
of Preferred Stock or equivalent preferred shares) less than the then current
per share market price of the Preferred Stock (determined pursuant to Section
11(d) hereof) on such record date, the Purchase Price to be in effect after such
record date shall be determined by multiplying the Purchase Price in effect
immediately prior to such record date by a fraction, the numerator of which
shall be the number of shares of Preferred Stock and equivalent preferred shares
outstanding on such record date plus the number of shares of Preferred Stock and
equivalent preferred shares which the aggregate offering price of the total
number of shares of Preferred Stock and/or equivalent preferred shares so to be
offered (and/or the aggregate initial conversion price of the convertible
securities so to be offered) would purchase at such current market price, and
the denominator of which shall be the number of shares of Preferred Stock and
equivalent preferred shares outstanding on such record date plus the number of
additional shares of Preferred Stock and/or equivalent preferred shares to be
offered for subscription or purchase (or into which the convertible securities
so to be offered are initially convertible); provided, however, that in no event
                                             --------  -------
shall the consideration to be paid upon the exercise of one Right be less than
the aggregate par value of the shares of capital stock of the Company issuable
upon exercise of one Right.  In case such subscription price may be paid in a
consideration part or all of which shall be in a form other than cash, the value
of such consideration shall be as determined in good faith by the Board of
Directors of the Company, whose determination shall be described in a statement
filed with the Rights Agent.  Shares of Preferred Stock and equivalent preferred
shares owned by or held for the account of the Company shall not be deemed
outstanding for the purpose of any such computation.  Such adjustment shall be
made successively whenever such a record date is fixed; and in the event that
such rights, options or warrants are not so issued, the Purchase Price shall be
adjusted to be the Purchase Price which would then be in effect if such record
date had not been fixed.

          (c) In case the Company shall fix a record date for the making of a
distribution to all holders of the Preferred Stock (including any such
distribution made in connection with a consolidation or merger in which the
Company is the continuing or surviving corporation) of evidences of indebtedness
or assets (other than a regular quarterly cash dividend or a dividend payable in
Preferred Stock) or subscription rights or warrants (excluding those referred to
in Section 11(b) hereof), the Purchase Price to be in effect after such record
date shall be determined by multiplying the Purchase Price in effect immediately
prior to such record date by a fraction, the numerator of which shall be the
then current per share market price of the Preferred Stock (determined pursuant
to Section 11(d) hereof) on such record date, less the fair market value (as
determined in good faith by the Board of Directors of the Company whose
determination shall be described in a statement filed with the Rights Agent) of
the portion of the assets or evidences of indebtedness so to be distributed or
of such subscription rights or warrants

                                       15
<PAGE>

applicable to one share of Preferred Stock, and the denominator of which shall
be such current per share market price (determined pursuant to Section 11(d)
hereof) of the Preferred Stock; provided, however, that in no event shall the
                                --------  -------
consideration to be paid upon the exercise of one Right be less than the
aggregate par value of the shares of capital stock of the Company to be issued
upon exercise of one Right. Such adjustments shall be made successively whenever
such a record date is fixed; and in the event that such distribution is not so
made, the Purchase Price shall again be adjusted to be the Purchase Price which
would then be in effect if such record date had not been fixed.

          (d)(i) Except as otherwise provided herein, for the purpose of any
computation hereunder, the "current per share market price" of any security (a
"Security" for the purpose of this Section 11(d)(i)) on any date shall be deemed
to be the average of the daily closing prices per share of such Security for the
30 consecutive Trading Days (as such term is hereinafter defined) immediately
prior to such date; provided, however, that in the event that the current per
                    --------  -------
share market price of the Security is determined during a period following the
announcement by the issuer of such Security of (A) a dividend or distribution on
such Security payable in shares of such Security or securities convertible into
such shares, or (B) any subdivision, combination or reclassification of such
Security, and prior to the expiration of 30 Trading Days after the ex-dividend
date for such dividend or distribution, or the record date for such subdivision,
combination or reclassification, then, and in each such case, the current per
share market price shall be appropriately adjusted to reflect the current market
price per share equivalent of such Security.  The closing price for each day
shall be the last sale price, regular way, or, in case no such sale takes place
on such day, the average of the closing bid and asked prices, regular way, in
either case as reported by the principal consolidated transaction reporting
system with respect to securities listed or admitted to trading on the New York
Stock Exchange or, if the Security is not listed or admitted to trading on the
New York Stock Exchange, as reported in the principal consolidated transaction
reporting system with respect to securities listed on the principal national
securities exchange on which the Security is listed or admitted to trading or,
if the Security is not listed or admitted to trading on any national securities
exchange, the last quoted price or, if not so quoted, the average of the high
bid and low asked prices in the over-the-counter market, as reported by Nasdaq
or such other system then in use, or, if on any such date the Security is not
quoted by any such organization, the average of the closing bid and asked prices
as furnished by a professional market maker making a market in the Security
selected by the Board of Directors of the Company.  The term "Trading Day" shall
mean a day on which the principal national securities exchange on which the
Security is listed or admitted to trading is open for the transaction of
business or, if the Security is not listed or admitted to trading on any
national securities exchange, a Business Day.

          (ii) For the purpose of any computation hereunder, if the Preferred
Stock is publicly traded, the "current per share market price" of the Preferred
Stock shall be determined in accordance with the method set forth in Section
11(d)(i).  If the Preferred Stock is not publicly traded but the Common Stock is
publicly traded, the "current per share market price" of the Preferred Stock
shall be conclusively deemed to be the current per share market price of the

                                       16
<PAGE>

Common Stock as determined pursuant to Section 11(d)(i) multiplied by the then
applicable Adjustment Number (as defined in and determined in accordance with
the Statement With Respect to Shares of the Preferred Stock).  If neither the
Common Stock nor the Preferred Stock is publicly traded, "current per share
market price" shall mean the fair value per share as determined in good faith by
the Board of Directors of the Company, whose determination shall be described in
a statement filed with the Rights Agent.

          (e) No adjustment in the Purchase Price shall be required unless such
adjustment would require an increase or decrease of at least 1% in the Purchase
Price; provided, however, that any adjustments which by reason of this Section
       --------  -------
11(e) are not required to be made shall be carried forward and taken into
account in any subsequent adjustment.  All calculations under this Section 11
shall be made to the nearest cent or to the nearest one hundred-thousandth of a
share of Preferred Stock or one-hundredth of a share of Common Stock or other
share or security as the case may be.  Notwithstanding the first sentence of
this Section 11(e), any adjustment required by this Section 11 shall be made no
later than the earlier of (i) three years from the date of the transaction which
requires such adjustment or (ii) the Expiration Date.

          (f) If as a result of an adjustment made pursuant to Section 11(a)
hereof, the holder of any Right thereafter exercised shall become entitled to
receive any shares of capital stock of the Company other than the Preferred
Stock, thereafter the Purchase Price and the number of such other shares so
receivable upon exercise of a Right shall be subject to adjustment from time to
time in a manner and on terms as nearly equivalent as practicable to the
provisions with respect to the Preferred Stock contained in Sections 11(a),
11(b), 11(c), 11(e), 11(h), 11(i) and 11(m) hereof, as applicable, and the
provisions of Sections 7, 9, 10, 13 and 14 hereof with respect to the Preferred
Stock shall apply on like terms to any such other shares.

          (g) All Rights originally issued by the Company subsequent to any
adjustment made to the Purchase Price hereunder shall evidence the right to
purchase, at the adjusted Purchase Price, the number of one one-hundredths of a
share of Preferred Stock purchasable from time to time hereunder upon exercise
of the Rights, all subject to further adjustment as provided herein.

          (h) Unless the Company shall have exercised its election as provided
in Section 11(i), upon each adjustment of the Purchase Price as a result of the
calculations made in Sections 11(b) and 11(c), each Right outstanding
immediately prior to the making of such adjustment shall thereafter evidence the
right to purchase, at the adjusted Purchase Price, that number of one one-
hundredths of a share of Preferred Stock (calculated to the nearest one hundred-
thousandth of a share of Preferred Stock) obtained by (i) multiplying (x) the
number of one one-hundredths of a share purchasable upon the exercise of a Right
immediately prior to such adjustment by (y) the Purchase Price in effect
immediately prior to such adjustment of the Purchase Price and (ii) dividing the
product so obtained by the Purchase Price in effect immediately after such
adjustment of the Purchase Price.

                                       17
<PAGE>

          (i) The Company may elect on or after the date of any adjustment of
the Purchase Price pursuant to Sections 11(b) or 11(c) hereof to adjust the
number of Rights, in substitution for any adjustment in the number of one one-
hundredths of a share of Preferred Stock purchasable upon the exercise of a
Right.  Each of the Rights outstanding after such adjustment of the number of
Rights shall be exercisable for the number of one one-hundredths of a share of
Preferred Stock for which a Right was exercisable immediately prior to such
adjustment.  Each Right held of record prior to such adjustment of the number of
Rights shall become that number of Rights (calculated to the nearest one-
hundredth) obtained by dividing the Purchase Price in effect immediately prior
to adjustment of the Purchase Price by the Purchase Price in effect immediately
after adjustment of the Purchase Price.  The Company shall make a public
announcement of its election to adjust the number of Rights, indicating the
record date for the adjustment, and, if known at the time, the amount of the
adjustment to be made.  Such record date may be the date on which the Purchase
Price is adjusted or any day thereafter, but, if the Right Certificates have
been issued, shall be at least 10 days later than the date of the public
announcement.  If Right Certificates have been issued, upon each adjustment of
the number of Rights pursuant to this Section 11(i), the Company may, as
promptly as practicable, cause to be distributed to holders of record of Right
Certificates on such record date Right Certificates evidencing, subject to
Section 14 hereof, the additional Rights to which such holders shall be entitled
as a result of such adjustment, or, at the option of the Company, shall cause to
be distributed to such holders of record in substitution and replacement for the
Right Certificates held by such holders prior to the date of adjustment, and
upon surrender thereof, if required by the Company, new Right Certificates
evidencing all the Rights to which such holders shall be entitled after such
adjustment.  Right Certificates so to be distributed shall be issued, executed
and countersigned in the manner provided for herein and shall be registered in
the names of the holders of record of Right Certificates on the record date
specified in the public announcement.

          (j) Irrespective of any adjustment or change in the Purchase Price or
the number of one one-hundredths of a share of Preferred Stock issuable upon the
exercise of a Right, the Right Certificates theretofore and thereafter issued
may continue to express the Purchase Price and the number of one one-hundredths
of a share of Preferred Stock which were expressed in the initial Right
Certificates issued hereunder.

          (k) Before taking any action that would cause an adjustment reducing
the Purchase Price below the then par value, if any, of the fraction of
Preferred Stock or other shares of capital stock issuable upon exercise of a
Right, the Company shall take any corporate action which may, in the opinion of
its counsel, be necessary in order that the Company may validly and legally
issue fully paid and nonassessable shares of Preferred Stock or other such
shares at such adjusted Purchase Price.

          (l) In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event issuing to the holder of any Right exercised after such record date the
Preferred Stock and other capital stock or securities of the Company, if any,

                                       18
<PAGE>

issuable upon such exercise over and above the Preferred Stock and other capital
stock or securities of the Company, if any, issuable upon such exercise on the
basis of the Purchase Price in effect prior to such adjustment; provided,
                                                                --------
however, that the Company shall deliver to such holder a due bill or other
- -------
appropriate instrument evidencing such holder's right to receive such additional
shares upon the occurrence of the event requiring such adjustment.

          (m) Anything in this Section 11 to the contrary notwithstanding, the
Company shall be entitled to make such adjustments in the Purchase Price, in
addition to those adjustments expressly required by this Section 11, as and to
the extent that it in its sole discretion shall determine to be advisable in
order that any consolidation or subdivision of the Preferred Stock, issuance
wholly for cash of any shares of Preferred Stock at less than the current market
price, issuance wholly for cash of Preferred Stock or securities which by their
terms are convertible into or exchangeable for Preferred Stock, dividends on
Preferred Stock payable in shares of Preferred Stock or issuance of rights,
options or warrants referred to hereinabove in Section 11(b), hereafter made by
the Company to holders of its Preferred Stock shall not be taxable to such
shareholders.

          (n) Anything in this Agreement to the contrary notwithstanding, in the
event that at any time after the date of this Rights Agreement and prior to the
Distribution Date, the Company shall (i) declare and pay any dividend on the
Common Stock payable in Common Stock or (ii) effect a subdivision, combination
or consolidation of the Common Stock (by reclassification or otherwise than by
payment of a dividend payable in Common Stock) into a greater or lesser number
of shares of Common Stock, then, in each such case, the number of Rights
associated with each share of Common Stock then outstanding, or issued or
delivered thereafter, shall be proportionately adjusted so that the number of
Rights thereafter associated with each share of Common Stock following any such
event shall equal the result obtained by multiplying the number of Rights
associated with each share of Common Stock immediately prior to such event by a
fraction the numerator of which shall be the total number of shares of Common
Stock outstanding immediately prior to the occurrence of the event and the
denominator of which shall be the total number of shares of Common Stock
outstanding immediately following the occurrence of such event.

          (o) The Company agrees that, after the earlier of the Distribution
Date or the Stock Acquisition Date, it will not, except as permitted by Sections
23, 24 or 27 hereof, take (or permit any Subsidiary to take) any action if at
the time such action is taken it is reasonably foreseeable that such action will
diminish substantially or eliminate the benefits intended to be afforded by the
Rights.

          Section 12.  Certificate of Adjusted Purchase Price or Number of
                       ---------------------------------------------------
Shares. Whenever an adjustment is made as provided in Section 11 or 13 hereof,
- ------
the Company shall promptly (a) prepare a certificate setting forth such
adjustment, and a brief statement of the facts accounting for such adjustment,
(b) file with the Rights Agent and with each transfer agent for the Common Stock
and the Preferred Stock a copy of such certificate and (c) mail a brief

                                       19
<PAGE>

summary thereof to each holder of a Right Certificate in accordance with Section
25 hereof (if so required under Section 25 hereof). The Rights Agent shall be
fully protected in relying on any such certificate and on any adjustment therein
contained and shall not be deemed to have knowledge of any such adjustment
unless and until it shall have received such certificate.

           Section 13.  Consolidation, Merger or Sale or Transfer of Assets or
                        ------------------------------------------------------
Earning Power.
- -------------

          (a) In the event, directly or indirectly, at any time after the Flip-
In Event (i) the Company shall consolidate with or shall merge into any other
Person, (ii) any Person shall merge with and into the Company and the Company
shall be the continuing or surviving corporation of such merger and, in
connection with such merger, all or part of the Common Stock shall be changed
into or exchanged for stock or other securities of any other Person (or of the
Company) or cash or any other property, or (iii) the Company shall sell or
otherwise transfer (or one or more of its Subsidiaries shall sell or otherwise
transfer), in one or more transactions, assets or earning power aggregating 50%
or more of the assets or earning power of the Company and its Subsidiaries
(taken as a whole) to any other Person (other than the Company or one or more
wholly-owned Subsidiaries of the Company), then upon the first occurrence of
such event, proper provision shall be made so that: (A) each holder of a Right
(other than Rights which have become void pursuant to Section 11(a)(ii) hereof)
shall thereafter have the right to receive, upon the exercise thereof at the
Purchase Price (as theretofore adjusted in accordance with Section 11(a)(ii)
hereof), in accordance with the terms of this Agreement and in lieu of shares of
Preferred Stock or Common Stock of the Company, such number of validly
authorized and issued, fully paid, non-assessable and freely tradeable shares of
Common Stock of the Principal Party (as such term is hereinafter defined), not
subject to any liens, encumbrances, rights of first refusal or other adverse
claims, as shall equal the result obtained by dividing the Purchase Price (as
theretofore adjusted in accordance with Section 11(a)(ii) hereof) by 50% of the
current per share market price of the Common Stock of such Principal Party
(determined pursuant to Section 11(d) hereof) on the date of consummation of
such consolidation, merger, sale or transfer; provided, however, that the
                                              --------  -------
Purchase Price (as theretofore adjusted in accordance with Section 11(a)(ii)
hereof) and the number of shares of Common Stock of such Principal Party so
receivable upon exercise of a Right shall be subject to further adjustment as
appropriate in accordance with Section 11(f) hereof to reflect any events
occurring in respect of the Common Stock of such Principal Party after the
occurrence of such consolidation, merger, sale or transfer; (B) such Principal
Party shall thereafter be liable for, and shall assume, by virtue of such
consolidation, merger, sale or transfer, all the obligations and duties of the
Company pursuant to this Rights Agreement; (C) the term "Company" shall
thereafter be deemed to refer to such Principal Party; and (D) such Principal
Party shall take such steps (including, but not limited to, the reservation of a
sufficient number of its shares of Common Stock in accordance with Section 9
hereof) in connection with such consummation of any such transaction as may be
necessary to assure that the provisions hereof shall thereafter be applicable,
as nearly as reasonably may be, in relation to the shares of its Common Stock
thereafter deliverable upon the exercise of the Rights; provided that, upon the
                                                        --------
subsequent occurrence of any consolidation, merger, sale or transfer of

                                       20
<PAGE>

assets or other extraordinary transaction in respect of such Principal Party,
each holder of a Right shall thereupon be entitled to receive, upon exercise of
a Right and payment of the Purchase Price as provided in this Section 13(a),
such cash, shares, rights, warrants and other property which such holder would
have been entitled to receive had such holder, at the time of such transaction,
owned the Common Stock of the Principal Party receivable upon the exercise of a
Right pursuant to this Section 13(a), and such Principal Party shall take such
steps (including, but not limited to, reservation of shares of stock) as may be
necessary to permit the subsequent exercise of the Rights in accordance with the
terms hereof for such cash, shares, rights, warrants and other property.

          (b)  "Principal Party" shall mean:

               (i) in the case of any transaction described in (i) or (ii) of
the first sentence of Section 13(a) hereof: (A) the Person that is the issuer of
the securities into which the shares of Common Stock are converted in such
merger or consolidation, or, if there is more than one such issuer, the issuer
the shares of Common Stock of which have the greatest aggregate market value of
shares outstanding, or (B) if no securities are so issued, (x) the Person that
is the other party to the merger, if such Person survives said merger, or, if
there is more than one such Person, the Person the shares of Common Stock of
which have the greatest aggregate market value of shares outstanding or (y) if
the Person that is the other party to the merger does not survive the merger,
the Person that does survive the merger (including the Company if it survives)
or (z) the Person resulting from the consolidation; and

               (ii) in the case of any transaction described in (iii) of the
first sentence in Section 13(a) hereof, the Person that is the party receiving
the greatest portion of the assets or earning power transferred pursuant to such
transaction or transactions, or, if each Person that is a party to such
transaction or transactions receives the same portion of the assets or earning
power so transferred or if the Person receiving the greatest portion of the
assets or earning power cannot be determined, whichever of such Persons is the
issuer of Common Stock having the greatest aggregate market value of shares
outstanding;

provided, however, that in any such case described in the foregoing clause
- --------  -------
(b)(i) or (b)(ii), if the Common Stock of such Person is not at such time or has
not been continuously over the preceding 12-month period registered under
Section 12 of the Exchange Act, then (1) if such Person is a direct or indirect
Subsidiary of another Person the Common Stock of which is and has been so
registered, the term "Principal Party" shall refer to such other Person, or (2)
if such Person is a Subsidiary, directly or indirectly, of more than one Person,
the Common Stock of all of which is and has been so registered, the term
"Principal Party" shall refer to whichever of such Persons is the issuer of
Common Stock having the greatest aggregate market value of shares outstanding,
or (3) if such Person is owned, directly or indirectly, by a joint venture
formed by two or more Persons that are not owned, directly or indirectly, by the
same Person, the rules set forth in clauses (1) and (2) above shall apply to
each of the owners having an interest in the venture as if the Person owned by
the joint venture was a Subsidiary of both or all of such joint

                                       21
<PAGE>

venturers, and the Principal Party in each such case shall bear the obligations
set forth in this Section 13 in the same ratio as its interest in such Person
bears to the total of such interests.

          (c) The Company shall not consummate any consolidation, merger, sale
or transfer referred to in Section 13(a) hereof unless prior thereto the Company
and the Principal Party involved therein shall have executed and delivered to
the Rights Agent an agreement confirming that the requirements of Sections 13(a)
and (b) hereof shall promptly be performed in accordance with their terms and
that such consolidation, merger, sale or transfer of assets shall not result in
a default by the Principal Party under this Agreement as the same shall have
been assumed by the Principal Party pursuant to Sections 13(a) and (b) hereof
and providing that, as soon as practicable after executing such agreement
pursuant to this Section 13, the Principal Party will:

               (i) prepare and file a registration statement under the
Securities Act, if necessary, with respect to the Rights and the securities
purchasable upon exercise of the Rights on an appropriate form, use its best
efforts to cause such registration statement to become effective as soon as
practicable after such filing and use its best efforts to cause such
registration statement to remain effective (with a prospectus at all times
meeting the requirements of the Securities Act) until the Expiration Date and
similarly comply with applicable state securities laws;

               (ii) use its best efforts, if the Common Stock of the Principal
Party shall be listed or admitted to trading on the New York Stock Exchange or
on another national securities exchange, to list or admit to trading (or
continue the listing of) the Rights and the securities purchasable upon exercise
of the Rights on the New York Stock Exchange or such securities exchange, or, if
the Common Stock of the Principal Party shall not be listed or admitted to
trading on the New York Stock Exchange or a national securities exchange, to
cause the Rights and the securities receivable upon exercise of the Rights to be
authorized for quotation on Nasdaq or on such other system then in use;

               (iii) deliver to holders of the Rights historical financial
statements for the Principal Party which comply in all respects with the
requirements for registration on Form 10 (or any successor form) under the
Exchange Act; and

               (iv) obtain waivers of any rights of first refusal or preemptive
rights in respect of the Common Stock of the Principal Party subject to purchase
upon exercise of outstanding Rights.

          (d) In case the Principal Party has any provision in any of its
authorized securities or in its certificate of incorporation or by-laws or other
instrument governing its corporate affairs, which provision would have the
effect of (i) causing such Principal Party to issue (other than to holders of
Rights pursuant to this Section 13), in connection with, or as a consequence of,
the consummation of a transaction referred to in this Section 13, shares of

                                       22
<PAGE>

Common Stock or Common Stock Equivalents of such Principal Party at less than
the then current market price per share thereof (determined pursuant to Section
11(d) hereof) or securities exercisable for, or convertible into, Common Stock
or Common Stock Equivalents of such Principal Party at less than such then
current market price, or (ii) providing for any special payment, tax or similar
provision in connection with the issuance of the Common Stock of such Principal
Party pursuant to the provisions of Section 13, then, in such event, the Company
hereby agrees with each holder of Rights that it shall not consummate any such
transaction unless prior thereto the Company and such Principal Party shall have
executed and delivered to the Rights Agent a supplemental agreement providing
that the provision in question of such Principal Party shall have been canceled,
waived or amended, or that the authorized securities shall be redeemed, so that
the applicable provision will have no effect in connection with, or as a
consequence of, the consummation of the proposed transaction.

          (e) The Company covenants and agrees that it shall not, at any time
after the Flip-In Event, enter into any transaction of the type described in
clauses (i) through (iii) of Section 13(a) hereof if (i) at the time of or
immediately after such consolidation, merger, sale, transfer or other
transaction there are any rights, warrants or other instruments or securities
outstanding or agreements in effect which would substantially diminish or
otherwise eliminate the benefits intended to be afforded by the Rights, (ii)
prior to, simultaneously with or immediately after such consolidation, merger,
sale, transfer or other transaction, the shareholders of the Person who
constitutes, or would constitute, the Principal Party for purposes of Section
13(b) hereof shall have received a distribution of Rights previously owned by
such Person or any of its Affiliates or Associates or (iii) the form or nature
of organization of the Principal Party would preclude or limit the
exercisability of the Rights.

           Section 14.  Fractional Rights and Fractional Shares.
                        ---------------------------------------

          (a) The Company shall not be required to issue fractions of Rights or
to distribute Right Certificates which evidence fractional Rights (except prior
to the Distribution Date in accordance with Section 11(n) hereof).  In lieu of
such fractional Rights, there shall be paid to the registered holders of the
Right Certificates with regard to which such fractional Rights would otherwise
be issuable, an amount in cash equal to the same fraction of the current market
value of a whole Right.  For the purposes of this Section 14(a), the current
market value of a whole Right shall be the closing price of the Rights for the
Trading Day immediately prior to the date on which such fractional Rights would
have been otherwise issuable.  The closing price for any day shall be the last
sale price, regular way, or, in case no such sale takes place on such day, the
average of the closing bid and asked prices, regular way, in either case as
reported in the principal consolidated transaction reporting system with respect
to securities listed or admitted to trading on the New York Stock Exchange or,
if the Rights are not listed or admitted to trading on the New York Stock
Exchange, as reported in the principal consolidated transaction reporting system
with respect to securities listed on the principal national securities exchange
on which the Rights are listed or admitted to trading or, if the Rights are not
listed or admitted to trading on any national securities exchange, the last
quoted price or, if not so quoted, the average of the high

                                       23
<PAGE>

bid and low asked prices in the over-the-counter market, as reported by Nasdaq
or such other system then in use or, if on any such date the Rights are not
quoted by any such organization, the average of the closing bid and asked prices
as furnished by a professional market maker making a market in the Rights
selected by the Board of Directors of the Company. If on any such date no such
market maker is making a market in the Rights, the fair value of the Rights on
such date as determined in good faith by the Board of Directors of the Company
shall be used.

          (b) The Company shall not be required to issue fractions of Preferred
Stock (other than fractions which are integral multiples of one one-hundredth of
a share of Preferred Stock) or to distribute certificates which evidence
fractional shares of Preferred Stock (other than fractions which are integral
multiples of one one-hundredth of a share of Preferred Stock) upon the exercise
or exchange of Rights.  Interests in fractions of Preferred Stock in integral
multiples of one one-hundredth of a share of Preferred Stock may, at the
election of the Company, be evidenced by depositary receipts, pursuant to an
appropriate agreement between the Company and a depositary selected by it;
provided, that such agreement shall provide that the holders of such depositary
- --------
receipts shall have all the rights, privileges and preferences to which they are
entitled as beneficial owners of the Preferred Stock represented by such
depositary receipts.  In lieu of fractional shares of Preferred Stock that are
not integral multiples of one one-hundredth of a share of Preferred Stock, the
Company shall pay to the registered holders of Right Certificates at the time
such Rights are exercised or exchanged as herein provided an amount in cash
equal to the same fraction of the current market value of a whole share of
Preferred Stock (as determined in accordance with Section 14(a) hereof) for the
Trading Day immediately prior to the date of such exercise or exchange.

          (c) The Company shall not be required to issue fractions of shares of
Common Stock or to distribute certificates which evidence fractional shares of
Common Stock upon the exercise or exchange of Rights.  In lieu of such
fractional shares of Common Stock, the Company shall pay to the registered
holders of the Right Certificates with regard to which such fractional shares of
Common Stock would otherwise be issuable an amount in cash equal to the same
fraction of the current market value of a whole share of Common Stock (as
determined in accordance with Section 14(a) hereof) for the Trading Day
immediately prior to the date of such exercise or exchange.

          (d) The holder of a Right by the acceptance of the Right expressly
waives his right to receive any fractional Rights or any fractional shares upon
exercise or exchange of a Right (except as provided above).

          Section 15.  Rights of Action.  All rights of action in respect of
                       ----------------
this Agreement, excepting the rights of action given to the Rights Agent under
Section 18 hereof, are vested in the respective registered holders of the Right
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Stock); and any registered holder of any Right Certificate (or, prior to
the Distribution Date, of the Common Stock), without the consent of the Rights
Agent or of the holder of any other Right Certificate (or, prior to the
Distribution Date, of the Common

                                       24
<PAGE>

Stock), on his own behalf and for his own benefit, may enforce, and may
institute and maintain any suit, action or proceeding against the Company to
enforce, or otherwise act in respect of, his right to exercise the Rights
evidenced by such Right Certificate (or, prior to the Distribution Date, such
Common Stock) in the manner provided therein and in this Agreement. Without
limiting the foregoing or any remedies available to the holders of Rights, it is
specifically acknowledged that the holders of Rights would not have an adequate
remedy at law for any breach of this Agreement and will be entitled to specific
performance of the obligations under, and injunctive relief against actual or
threatened violations of, the obligations of any Person subject to this
Agreement.

          Section 16.  Agreement of Right Holders.  Every holder of a Right, by
                       --------------------------
accepting the same, consents and agrees with the Company and the Rights Agent
and with every other holder of a Right that:

          (a) prior to the Distribution Date, the Rights will be transferable
only in connection with the transfer of the Common Stock;

          (b) after the Distribution Date, the Right Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the office or agency of the Rights Agent designated for such purpose, duly
endorsed or accompanied by a proper instrument of transfer; and

          (c) the Company and the Rights Agent may deem and treat the Person in
whose name the Right Certificate (or, prior to the Distribution Date, the Common
Stock certificate) is registered as the absolute owner thereof and of the Rights
evidenced thereby (notwithstanding any notations of ownership or writing on the
Right Certificates or the Common Stock certificate made by anyone other than the
Company or the Rights Agent) for all purposes whatsoever, and neither the
Company nor the Rights Agent shall be affected by any notice to the contrary.

          Section 17.  Right Certificate Holder Not Deemed a Shareholder.  No
                       -------------------------------------------------
holder, as such, of any Right Certificate shall be entitled to vote, receive
dividends or be deemed for any purpose the holder of the Preferred Stock or any
other securities of the Company which may at any time be issuable on the
exercise or exchange of the Rights represented thereby, nor shall anything
contained herein or in any Right Certificate be construed to confer upon the
holder of any Right Certificate, as such, any of the rights of a shareholder of
the Company or any right to vote for the election of directors or upon any
matter submitted to shareholders at any meeting thereof, or to give or withhold
consent to any corporate action, or to receive notice of meetings or other
actions affecting shareholders (except as provided in this Agreement), or to
receive dividends or subscription rights, or otherwise, until the Rights
evidenced by such Right Certificate shall have been exercised or exchanged in
accordance with the provisions hereof.

           Section 18.  Concerning the Rights Agent.
                        ---------------------------

                                       25
<PAGE>

          (a) The Company agrees to pay to the Rights Agent reasonable
compensation for all services rendered by it hereunder and, from time to time,
on demand of the Rights Agent, its reasonable expenses and counsel fees and
other disbursements incurred in the administration and execution of this
Agreement and the exercise and performance of its duties hereunder.  The Company
also agrees to indemnify the Rights Agent for, and to hold it harmless against,
any loss, liability or expense, incurred without negligence, bad faith or
willful misconduct on the part of the Rights Agent, for anything done or omitted
by the Rights Agent in connection with the acceptance and administration of this
Agreement, including the costs and expenses of defending against any claim of
liability arising therefrom, directly or indirectly.

          (b) The Rights Agent shall be protected and shall incur no liability
for, or in respect of any action taken, suffered or omitted by it in connection
with, its administration of this Agreement in reliance upon any Right
Certificate or certificate for the Preferred Stock or Common Stock or for other
securities of the Company, instrument of assignment or transfer, power of
attorney, endorsement, affidavit, letter, notice, direction, consent,
certificate, statement or other paper or document believed by it to be genuine
and to be signed, executed and, where necessary, verified or acknowledged, by
the proper Person or Persons, or otherwise upon the advice of counsel as set
forth in Section 20 hereof.

          Section 19.  Merger or Consolidation or Change of Name of Rights
                       ---------------------------------------------------
Agent.
- -----

          (a) Any corporation into which the Rights Agent or any successor
Rights Agent may be merged or with which it may be consolidated, or any
corporation resulting from any merger or consolidation to which the Rights Agent
or any successor Rights Agent shall be a party, or any corporation succeeding to
the stock transfer or corporate trust powers of the Rights Agent or any
successor Rights Agent, shall be the successor to the Rights Agent under this
Agreement without the execution or filing of any paper or any further act on the
part of any of the parties hereto; provided, that such corporation would be
                                   --------
eligible for appointment as a successor Rights Agent under the provisions of
Section 21 hereof.  In case at the time such successor Rights Agent shall
succeed to the agency created by this Agreement and at such time any of the
Right Certificates shall have been countersigned but not delivered, any such
successor Rights Agent may adopt the countersignature of the predecessor Rights
Agent and deliver such Right Certificates so countersigned; and in case at that
time any of the Right Certificates shall not have been countersigned, any
successor Rights Agent may countersign such Right Certificates either in the
name of the predecessor Rights Agent or in the name of the successor Rights
Agent; and in all such cases such Right Certificates shall have the full force
provided in the Right Certificates and in this Agreement.

          (b) In case at any time the name of the Rights Agent shall be changed
and at such time any of the Right Certificates shall have been countersigned but
not delivered, the Rights Agent may adopt the countersignature under its prior
name and deliver Right Certificates so countersigned; and in case at that time
any of the Right Certificates shall not have been countersigned, the Rights
Agent may countersign such Right Certificates either in its prior name

                                       26
<PAGE>

or in its changed name and in all such cases such Right Certificates shall have
the full force provided in the Right Certificates and in this Agreement.

          Section 20.  Duties of Rights Agent.  The Rights Agent undertakes the
                       ----------------------
duties and obligations imposed by this Agreement upon the following terms and
conditions, by all of which the Company and the holders of Right Certificates,
by their acceptance thereof, shall be bound:

          (a) The Rights Agent may consult with legal counsel (who may be legal
counsel for the Company), and the opinion of such counsel shall be full and
complete authorization and protection to the Rights Agent as to any action taken
or omitted by it in good faith and in accordance with such opinion.

          (b) Whenever in the performance of its duties under this Agreement the
Rights Agent shall deem it necessary or desirable that any fact or matter be
proved or established by the Company prior to taking or suffering any action
hereunder, such fact or matter (unless other evidence in respect thereof be
herein specifically prescribed) may be deemed to be conclusively proved and
established by a certificate signed by the President and the Secretary of the
Company and delivered to the Rights Agent; and such certificate shall be full
authorization to the Rights Agent for any action taken or suffered in good faith
by it under the provisions of this Agreement in reliance upon such certificate.

          (c) The Rights Agent shall be liable hereunder to the Company and any
other Person only for its own negligence, bad faith or willful misconduct.

          (d) The Rights Agent shall not be liable for or by reason of any of
the statements of fact or recitals contained in this Agreement or in the Right
Certificates (except its countersignature thereof) or be required to verify the
same, but all such statements and recitals are and shall be deemed to have been
made by the Company only.

          (e) The Rights Agent shall not be under any responsibility in respect
of the validity of this Agreement or the execution and delivery hereof (except
the due execution hereof by the Rights Agent) or in respect of the validity or
execution of any Right Certificate (except its countersignature thereof); nor
shall it be responsible for any breach by the Company of any covenant or
condition contained in this Agreement or in any Right Certificate; nor shall it
be responsible for any change in the exercisability of the Rights (including the
Rights becoming void pursuant to Section 11(a)(ii) hereof) or any adjustment in
the terms of the Rights provided for in Sections 3, 11, 13, 23 and 24, or the
ascertaining of the existence of facts that would require any such change or
adjustment (except with respect to the exercise of Rights evidenced by Right
Certificates after receipt of a certificate furnished pursuant to Section 12,
describing such change or adjustment); nor shall it by any act hereunder be
deemed to make any representation or warranty as to the authorization or
reservation of any shares of Preferred Stock or other securities to be issued
pursuant to this Agreement or any Right Certificate or as to

                                       27
<PAGE>

whether any shares of Preferred Stock or other securities will, when issued, be
validly authorized and issued, fully paid and nonassessable.

          (f) The Company agrees that it will perform, execute, acknowledge and
deliver or cause to be performed, executed, acknowledged and delivered all such
further and other acts, instruments and assurances as may reasonably be required
by the Rights Agent for the carrying out or performing by the Rights Agent of
the provisions of this Agreement.

          (g) The Rights Agent is hereby authorized and directed to accept
instructions with respect to the performance of its duties hereunder from any
person reasonably believed by the Rights Agent to be one of the President or the
Secretary of the Company, and to apply to such officers for advice or
instructions in connection with its duties, and it shall not be liable for any
action taken or suffered by it in good faith in accordance with instructions of
any such officer or for any delay in acting while waiting for those
instructions.  Any application by the Rights Agent for written instructions from
the Company may, at the option of the Rights Agent, set forth in writing any
action proposed to be taken or omitted by the Rights Agent under this Agreement
and the date on and/or after which such action shall be taken or such omission
shall be effective.  The Rights Agent shall not be liable for any action taken
by, or omission of, the Rights Agent in accordance with a proposal included in
any such application on or after the date specified in such application (which
date shall not be less than five Business Days after the date any officer of the
Company actually receives such application unless any such officer shall have
consented in writing to an earlier date) unless, prior to taking any such action
(or the effective date in the case of an omission), the Rights Agent shall have
received written instructions in response to such application specifying the
action to be taken or omitted.

          (h) The Rights Agent and any stockholder, director, officer or
employee of the Rights Agent may buy, sell or deal in any of the Rights or other
securities of the Company or become pecuniarily interested in any transaction in
which the Company may be interested, or contract with or lend money to the
Company or otherwise act as fully and freely as though it were not Rights Agent
under this Agreement.  Nothing herein shall preclude the Rights Agent from
acting in any other capacity for the Company or for any other legal entity.

          (i) The Rights Agent may execute and exercise any of the rights or
powers hereby vested in it or perform any duty hereunder either itself or by or
through its attorneys or agents, and the Rights Agent shall not be answerable or
accountable for any act, default, neglect or misconduct of any such attorneys or
agents or for any loss to the Company resulting from any such act, default,
neglect or misconduct, provided reasonable care was exercised in the selection
and continued employment thereof.

          (j) If, with respect to any Rights Certificate surrendered to the
Rights Agent for exercise or transfer, the certificate contained in the form of
assignment or the form of election to purchase set forth on the reverse thereof,
as the case may be, has not been completed to certify that the holder is not an
Acquiring Person (or an Affiliate or Associate thereof), the Rights Agent

                                       28
<PAGE>

shall not take any further action with respect to such requested exercise or
transfer without first consulting with the Company.

          Section 21.  Change of Rights Agent.  The Rights Agent or any
                       ----------------------
successor Rights Agent may resign and be discharged from its duties under this
Agreement upon 30 days' notice in writing mailed to the Company and to each
transfer agent of the Common Stock or Preferred Stock by registered or certified
mail, and, following the Distribution Date, to the holders of the Right
Certificates by first-class mail.  The Company may remove the Rights Agent or
any successor Rights Agent upon 30 days' notice in writing, mailed to the Rights
Agent or successor Rights Agent, as the case may be, and to each transfer agent
of the Common Stock or Preferred Stock by registered or certified mail, and,
following the Distribution Date, to the holders of the Right Certificates by
first-class mail.  If the Rights Agent shall resign or be removed or shall
otherwise become incapable of acting, the Company shall appoint a successor to
the Rights Agent.  If the Company shall fail to make such appointment within a
period of 30 days after giving notice of such removal or after it has been
notified in writing of such resignation or incapacity by the resigning or
incapacitated Rights Agent or by the holder of a Right Certificate (who shall,
with such notice, submit his Right Certificate for inspection by the Company),
then the registered holder of any Right Certificate may apply to any court of
competent jurisdiction for the appointment of a new Rights Agent.  Any successor
Rights Agent, whether appointed by the Company or by such a court, shall be a
corporation organized and doing business under the laws of the United States or
the laws of any state of the United States or the District of Columbia, in good
standing, having an office in the Commonwealth of Pennsylvania or the State of
New York, which is authorized under such laws to exercise corporate trust or
stock transfer powers and is subject to supervision or examination by federal or
state authority and which has at the time of its appointment as Rights Agent a
combined capital and surplus of at least $50 million. After appointment, the
successor Rights Agent shall be vested with the same powers, rights, duties and
responsibilities as if it had been originally named as Rights Agent without
further act or deed; but the predecessor Rights Agent shall deliver and transfer
to the successor Rights Agent any property at the time held by it hereunder, and
execute and deliver any further assurance, conveyance, act or deed necessary for
the purpose.  Not later than the effective date of any such appointment the
Company shall file notice thereof in writing with the predecessor Rights Agent
and each transfer agent of the Common Stock or Preferred Stock, and, following
the Distribution Date, mail a notice thereof in writing to the registered
holders of Right Certificates.  Failure to give any notice provided for in this
Section 21, however, or any defect therein, shall not affect the legality or
validity of the resignation or removal of the Rights Agent or the appointment of
the successor Rights Agent, as the case may be.

          Section 22.  Issuance of New Right Certificates.  Notwithstanding any
                       ----------------------------------
of the provisions of this Agreement or of the Rights to the contrary, the
Company may, at its option, issue new Right Certificates evidencing Rights in
such forms as may be approved by its Board of Directors to reflect any
adjustment or change in the Purchase Price and the number or kind or class of
shares or other securities or property purchasable under the Right Certificates
made in accordance with the provisions of this Agreement.  In addition, in
connection with the issuance

                                       29
<PAGE>

or sale of Common Stock following the Distribution Date and prior to the
Expiration Date, the Company may with respect to shares of Common Stock so
issued or sold pursuant to (i) the exercise of stock options, (ii) under any
employee plan or arrangement, (iii) upon the exercise, conversion or exchange of
securities, notes or debentures issued by the Company or (iv) a contractual
obligation of the Company, in each case existing prior to the Distribution Date,
issue Rights Certificates representing the appropriate number of Rights in
connection with such issuance or sale.

      Section 23.  Redemption.
                   ----------

          (a) The Board of Directors of the Company may, at any time prior to
the Flip-In Event, redeem all but not less than all the then outstanding Rights
at a redemption price of $.01 per Right, appropriately adjusted to reflect any
stock split, stock dividend or similar transaction occurring after the date
hereof (the redemption price being hereinafter referred to as the "Redemption
Price").  The redemption of the Rights may be made effective at such time, on
such basis and with such conditions as the Board of Directors in its sole
discretion may establish. The Redemption Price shall be payable, at the option
of the Company, in cash, shares of Common Stock, or such other form of
consideration as the Board of Directors shall determine.

          (b) Immediately upon the action of the Board of Directors ordering the
redemption of the Rights pursuant to paragraph (a) of this Section 23 (or at
such later time as the Board of Directors may establish for the effectiveness of
such redemption), and without any further action and without any notice, the
right to exercise the Rights will terminate and the only right thereafter of the
holders of Rights shall be to receive the Redemption Price.  The Company shall
promptly give public notice of any such redemption; provided, however, that the
                                                    --------  -------
failure to give, or any defect in, any such notice shall not affect the validity
of such redemption.  Within 10 days after such action of the Board of Directors
ordering the redemption of the Rights (or such later time as the Board of
Directors may establish for the effectiveness of such redemption), the Company
shall mail a notice of redemption to all the holders of the then outstanding
Rights at their last addresses as they appear upon the registry books of the
Rights Agent or, prior to the Distribution Date, on the registry books of the
transfer agent for the Common Stock.  Any notice which is mailed in the manner
herein provided shall be deemed given, whether or not the holder receives the
notice.  Each such notice of redemption shall state the method by which the
payment of the Redemption Price will be made.

           Section 24.  Exchange.
                        --------

          (a) The Board of Directors of the Company may, at its option, at any
time after the Flip-In Event, exchange all or part of the then outstanding and
exercisable Rights (which shall not include Rights that have become void
pursuant to the provisions of Section 11(a)(ii) hereof) for Common Stock at an
exchange ratio of one share of Common Stock per Right, appropriately adjusted to
reflect any stock split, stock dividend or similar transaction occurring after
the date hereof (such amount per Right being hereinafter referred to as the

                                       30
<PAGE>

"Exchange Ratio").  Notwithstanding the foregoing, the Board of Directors shall
not be empowered to effect such exchange at any time after an Acquiring Person
shall have become the Beneficial Owner of shares of Common Stock aggregating 50%
or more of the shares of Common Stock then outstanding.  From and after the
occurrence of an event specified in Section 13(a) hereof, any Rights that
theretofore have not been exchanged pursuant to this Section 24(a) shall
thereafter be exercisable only in accordance with Section 13 and may not be
exchanged pursuant to this Section 24(a).  The exchange of the Rights by the
Board of Directors may be made effective at such time, on such basis and with
such conditions as the Board of Directors in its sole discretion may establish.

          (b) Immediately upon the effectiveness of the action of the Board of
Directors of the Company ordering the exchange of any Rights pursuant to
paragraph (a) of this Section 24 and without any further action and without any
notice, the right to exercise such Rights shall terminate and the only right
thereafter of a holder of such Rights shall be to receive that number of shares
of Common Stock equal to the number of such Rights held by such holder
multiplied by the Exchange Ratio.  The Company shall promptly give public notice
of any such exchange; provided, however, that the failure to give, or any defect
                      --------  -------
in, such notice shall not affect the validity of such exchange.  The Company
shall promptly mail a notice of any such exchange to all of the holders of the
Rights so exchanged at their last addresses as they appear upon the registry
books of the Rights Agent.  Any notice which is mailed in the manner herein
provided shall be deemed given, whether or not the holder receives the notice.
Each such notice of exchange will state the method by which the exchange of the
shares of Common Stock for Rights will be effected and, in the event of any
partial exchange, the number of Rights which will be exchanged.  Any partial
exchange shall be effected pro rata based on the number of Rights (other than
Rights which have become void pursuant to the provisions of Section 11(a)(ii)
hereof) held by each holder of Rights.

          (c) The Company may at its option substitute, and, in the event that
there shall not be sufficient shares of Common Stock issued but not outstanding
or authorized but unissued to permit an exchange of Rights for Common Stock as
contemplated in accordance with this Section 24, the Company shall substitute to
the extent of such insufficiency, for each share of Common Stock that would
otherwise be issuable upon exchange of a Right, a number of shares of Preferred
Stock or fraction thereof (or equivalent preferred shares, as such term is
defined in Section 11(b)) such that the current per share market price
(determined pursuant to Section 11(d) hereof) of one share of Preferred Stock
(or equivalent preferred share) multiplied by such number or fraction is equal
to the current per share market price of one share of Common Stock (determined
pursuant to Section 11(d) hereof) as of the date of such exchange.

          Section 25.  Notice of Certain Events.
                        ------------------------

          (a) In case the Company shall at any time after the earlier of the
Distribution Date or the Stock Acquisition Date propose (i) to pay any dividend
payable in stock of any class to the holders of its

                                       31
<PAGE>

Preferred Stock or to make any other distribution to the holders of its
Preferred Stock (other than a regular quarterly cash dividend), (ii) to offer to
the holders of its Preferred Stock rights or warrants to subscribe for or to
purchase any additional shares of Preferred Stock or shares of stock of any
class or any other securities, rights or options, (iii) to effect any
reclassification of its Preferred Stock (other than a reclassification involving
only the subdivision or combination of outstanding Preferred Stock), (iv) to
effect the liquidation, dissolution or winding up of the Company, or (v) to pay
any dividend on the Common Stock payable in Common Stock or to effect a
subdivision, combination or consolidation of the Common Stock (by
reclassification or otherwise than by payment of dividends in Common Stock),
then, in each such case, the Company shall give to each holder of a Right
Certificate, in accordance with Section 26 hereof, a notice of such proposed
action, which shall specify the record date for the purposes of such stock
dividend, or distribution of rights or warrants, or the date on which such
liquidation, dissolution or winding up is to take place and the date of
participation therein by the holders of the Common Stock and/or Preferred Stock,
if any such date is to be fixed, and such notice shall be so given in the case
of any action covered by clause (i) or (ii) above at least 10 days prior to the
record date for determining holders of the Preferred Stock for purposes of such
action, and in the case of any such other action, at least 10 days prior to the
date of the taking of such proposed action or the date of participation therein
by the holders of the Common Stock and/or Preferred Stock, whichever shall be
the earlier.

          (b) In case any event described in Section 11(a)(ii) or Section 13
shall occur, then the Company shall as soon as practicable thereafter give to
each holder of a Right Certificate (or if occurring prior to the Distribution
Date, the holders of the Common Stock) in accordance with Section 26 hereof, a
notice of the occurrence of such event, which notice shall describe such event
and the consequences of such event to holders of Rights under Section 11(a)(ii)
and Section 13 hereof.

          Section 26.  Notices.  Notices or demands authorized by this Agreement
                       -------
to be given or made by the Rights Agent or by the holder of any Right
Certificate to or on the Company shall be sufficiently given or made if sent by
first-class mail, postage prepaid, addressed (until another address is filed in
writing with the Rights Agent) as follows:

                    C-COR.net Corp.
                    60 Decibel Road
                    State College, PA 16801
                    Attention: David A. Woodle

Subject to the provisions of Section 21 hereof, any notice or demand authorized
by this Agreement to be given or made by the Company or by the holder of any
Right Certificate to or on the Rights Agent shall be sufficiently given or made
if sent by first-class mail, postage prepaid, addressed (until another address
is filed in writing with the Company) as follows:

                    American Stock Transfer & Trust Co.
                    6201 15th Avenue, 3rd Floor

                                       32
<PAGE>

                    Brooklyn, NY  11219
                    Attention: Herbert J. Lemmer

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Right Certificate shall be
sufficiently given or made if sent by first-class mail, postage prepaid,
addressed to such holder at the address of such holder as shown on the registry
books of the Company.

          Section 27.  Supplements and Amendments.  Except as provided in the
                       --------------------------
penultimate sentence of this Section 27, for so long as the Rights are then
redeemable, the Company may in its sole and absolute discretion, and the Rights
Agent shall if the Company so directs, supplement or amend any provision of this
Agreement in any respect without the approval of any holders of the Rights.  At
any time when the Rights are no longer redeemable, except as provided in the
penultimate sentence of this Section 27, the Company may, and the Rights Agent
shall, if the Company so directs, supplement or amend this Agreement without the
approval of any holders of Rights in order to (i) cure any ambiguity, (ii)
correct or supplement any provision contained herein which may be defective or
inconsistent with any other provision herein, (iii) shorten or lengthen any time
period hereunder, or (iv) change or supplement the provisions hereunder in any
manner which the Company may deem necessary or desirable; provided that no such
                                                          --------
supplement or amendment shall adversely affect the interests of the holders of
Rights as such (other than an Acquiring Person or an Affiliate or Associate of
an Acquiring Person), and no such amendment may cause the Rights again to become
redeemable or cause the Agreement again to become amendable other than in
accordance with this sentence. Notwithstanding anything contained in this
Agreement to the contrary, no supplement or amendment shall be made which
changes the Redemption Price.  Upon the delivery of a certificate from an
appropriate officer of the Company which states that the proposed supplement or
amendment is in compliance with the terms of this Section 27, the Rights Agent
shall execute such supplement or amendment.

          Section 28.  Successors.  All the covenants and provisions of this
                       ----------
Agreement by or for the benefit of the Company or the Rights Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

          Section 29.  Benefits of this Agreement.  Nothing in this Agreement
                       --------------------------
shall be construed to give to any Person other than the Company, the Rights
Agent and the registered holders of the Right Certificates (and, prior to the
Distribution Date, the Common Stock) any legal or equitable right, remedy or
claim under this Agreement; but this Agreement shall be for the sole and
exclusive benefit of the Company, the Rights Agent and the registered holders of
the Right Certificates (and, prior to the Distribution Date, the Common Stock).

          Section 30.  Determinations and Actions by the Board of Directors.
                       ----------------------------------------------------
The Board of Directors of the Company shall have the exclusive power and
authority to administer this Agreement and to exercise the rights and powers
specifically granted to the Board of Directors of

                                       33
<PAGE>

the Company or to the Company, or as may be necessary or advisable in the
administration of this Agreement, including, without limitation, the right and
power to (i) interpret the provisions of this Agreement and (ii) make all
determinations deemed necessary or advisable for the administration of this
Agreement (including, without limitation, a determination to redeem or not
redeem the Rights or to amend this Agreement). All such actions, calculations,
interpretations and determinations (including, for purposes of clause (y) below,
all omissions with respect to the foregoing) that are done or made by the Board
of Directors of the Company in good faith, shall (x) be final, conclusive and
binding on the Company, the Rights Agent, the holders of the Rights, as such,
and all other parties, and (y) not subject the Board of Directors to any
liability to the holders of the Rights.

          Section 31.  Severability. If any term, provision, covenant or
                       ------------
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable, the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated.

          Section 32.  Governing Law.  This Agreement and each Right Certificate
                       -------------
issued hereunder shall be deemed to be a contract made under the laws of the
Commonwealth of Pennsylvania and for all purposes shall be governed by and
construed in accordance with the laws of such Commonwealth applicable to
contracts to be made and performed entirely within such Commonwealth.

          Section 33.  Counterparts.  This Agreement may be executed in any
                       ------------
number of counterparts and each of such counterparts shall for all purposes be
deemed to be an original, and all such counterparts shall together constitute
but one and the same instrument.

          Section 34.  Descriptive Headings.  Descriptive headings of the
                       --------------------
several Sections of this Agreement are inserted for convenience only and shall
not control or affect the meaning or construction of any of the provisions
hereof.

                                       34
<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed, all as of the day and year first above written.


                         C-COR.net Corp.



                         By:    /s/ David A. Woodle
                            ----------------------------------------------------
                            Name:   David A. Woodle
                                    Title:President and
                                    Chief Executive Officer



                         AMERICAN STOCK TRANSFER & TRUST CO.,
                         as Rights Agent



                         By:    /s/ Herbert J. Lemmer
                            ---------------------------------------------------
                            Name:  Herbert J. Lemmer
                                   Title: Vice-President

                                       35
<PAGE>

                                                                       Exhibit A
                                                                       ---------



                                    FORM OF
                       STATEMENT WITH RESPECT TO SHARES

                                      of

                 SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

                                      of

                                C-COR.net Corp.


          RESOLVED, that pursuant to the authority vested in the Board of
Directors of this Corporation in accordance with the provisions of the Articles
of Incorporation, a series of Preferred Stock, no par value per share, of the
Corporation be and hereby is created, and that the designation and number of
shares thereof and the voting and other powers, preferences and relative,
participating, optional or other rights of the shares of such series and the
qualifications, limitations and restrictions thereof are as follows:

                 Series a Junior Participating Preferred Stock

          1.   Designation and Amount.  There shall be a series of Preferred
Stock that shall be designated as "Series A Junior Participating Preferred
Stock," and the number of shares constituting such series shall be 200,000.
Such number of shares may be increased or decreased by resolution of the Board
of Directors; provided, however, that no decrease shall reduce the number of
shares of Series A Junior Participating  Preferred Stock to less than the number
of shares then issued and outstanding plus the number of shares issuable upon
exercise of outstanding rights, options or warrants or upon conversion of
outstanding securities issued by the Corporation.

          2.   Dividends and Distribution.

          (A) Subject to the prior and superior rights of the holders of any
shares of any class or series of stock of the Corporation ranking prior and
superior to the shares of Series A Junior Participating Preferred Stock with
respect to dividends, the holders of shares of Series A Junior Participating
Preferred Stock, in preference to the holders of shares of any class or series
of stock of the Corporation ranking junior to the Series A Junior Participating
Preferred Stock in respect thereof, shall be entitled to receive, when, as and
if declared by the Board of

                                      A-1
<PAGE>

Directors out of funds legally available for the purpose, quarterly dividends
payable in cash on the 15th day of February, May, August and November, in each
year (each such date being referred to herein as a "Quarterly Dividend Payment
Date"), commencing on the first Quarterly Dividend Payment Date after the first
issuance of a share or fraction of a share of Series A Junior Participating
Preferred Stock, in an amount per share (rounded to the nearest cent) equal to
the greater of (a) $1.00 or (b) the Adjustment Number (as defined below) times
the aggregate per share amount of all cash dividends, and the Adjustment Number
times the aggregate per share amount (payable in kind) of all non-cash dividends
or other distributions other than a dividend payable in shares of Common Stock
or a subdivision of the outstanding shares of Common Stock (by reclassification
or otherwise), declared on the Common Stock, par value $.10 per share, of the
Corporation (the "Common Stock") since the immediately preceding Quarterly
Dividend Payment Date, or, with respect to the first Quarterly Dividend Payment
Date, since the first issuance of any share or fraction of a share of Series A
Junior Participating Preferred Stock. The "Adjustment Number" shall initially be
100. In the event the Corporation shall at any time after August 17, 1999 (the
"Rights Declaration Date") (i) declare and pay any dividend on Common Stock
payable in shares of Common Stock, (ii) subdivide the outstanding Common Stock
or (iii) combine the outstanding Common Stock into a smaller number of shares,
then in each such case the Adjustment Number in effect immediately prior to such
event shall be adjusted by multiplying such Adjustment Number by a fraction the
numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

          (B) The Corporation shall declare a dividend or distribution on the
Series A Junior Participating Preferred Stock as provided in paragraph (A) above
immediately after it declares a dividend or distribution on the Common Stock
(other than a dividend payable in shares of Common Stock).

          (C)   Dividends shall begin to accrue and be cumulative on outstanding
shares of Series A Junior Participating Preferred Stock from the Quarterly
Dividend Payment Date next preceding the date of issue of such shares of Series
A Junior Participating Preferred Stock, unless the date of issue of such shares
is prior to the record date for the first Quarterly Dividend Payment Date, in
which case dividends on such shares shall begin to accrue from the date of issue
of such shares, or unless the date of issue is a Quarterly Dividend Payment Date
or is a date after the record date for the determination of holders of shares of
Series A Junior Participating Preferred Stock entitled to receive a quarterly
dividend and before such Quarterly Dividend Payment Date, in either of which
events such dividends shall begin to accrue and be cumulative from such
Quarterly Dividend Payment Date.  Accrued but unpaid dividends shall not bear
interest.  Dividends paid on the shares of Series A Junior Participating
Preferred Stock in an amount less than the total amount of such dividends at the
time accrued and payable on such shares shall be allocated pro rata on a share-
by-share basis among all such shares at the time outstanding.  The Board of
Directors may fix a record date for the determination of holders of shares of
Series A Junior Participating Preferred Stock entitled to receive payment of a
dividend

                                      A-2
<PAGE>

or distribution declared thereon, which record date shall be no more
than 60 days prior to the date fixed for the payment thereof.

          3.   Voting Rights.  The holders of shares of Series A Junior
Participating Preferred Stock shall have the following voting rights:

          (A) Each share of Series A Junior Participating Preferred Stock shall
entitle the holder thereof to a number of votes equal to the Adjustment Number
on all matters submitted to a vote of the shareholders of the Corporation.

          (B) Except as required by law and by Section 10 hereof, holders of
Series A Junior Participating Preferred Stock shall have no special voting
rights and their consent shall not be required (except to the extent they are
entitled to vote with holders of Common Stock as set forth herein) for taking
any corporate action.

          4.   Certain Restrictions.

          (A) Whenever quarterly dividends or other dividends or distributions
payable on the Series A Junior Participating Preferred Stock as provided in
Section 2 are in arrears, thereafter and until all accrued and unpaid dividends
and distributions, whether or not declared, on shares of Series A Junior
Participating Preferred Stock outstanding shall have been paid in full, the
Corporation shall not:

          (i) declare or pay dividends on, make any other distributions on, or
redeem or purchase or otherwise acquire for consideration any shares of stock
ranking junior (either as to dividends or upon liquidation, dissolution or
winding up) to the Series A Junior Participating Preferred Stock;

          (ii) declare or pay dividends on or make any other distributions on
any shares of stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with the Series A Junior Participating
Preferred Stock, except dividends paid ratably on the Series A Junior
Participating Preferred Stock and all such parity stock on which dividends are
payable or in arrears in proportion to the total amounts to which the holders of
all such shares are then entitled; or

          (iii) purchase or otherwise acquire for consideration any shares of
Series A Junior Participating Preferred Stock, or any shares of stock ranking on
a parity with the Series A Junior Participating Preferred Stock, except in
accordance with a purchase offer made in writing or by publication (as
determined by the Board of Directors) to all holders of Series A Junior
Participating Preferred Stock, or to such holders and holders of any such shares
ranking on a parity therewith, upon such terms as the Board of Directors, after
consideration of the respective annual dividend rates and other relative rights
and preferences of the respective series

                                      A-3
<PAGE>

and classes, shall determine in good faith will result in fair and equitable
treatment among the respective series or classes.

          (B) The Corporation shall not permit any subsidiary of the Corporation
to purchase or otherwise acquire for consideration any shares of stock of the
Corporation unless the Corporation could, under paragraph (A) of this Section 4,
purchase or otherwise acquire such shares at such time and in such manner.

          5.   Reacquired Shares.  Any shares of Series A Junior Participating
Preferred Stock purchased or otherwise acquired by the Corporation in any manner
whatsoever shall be retired promptly after the acquisition thereof.  All such
shares shall upon their retirement become authorized but unissued shares of
Preferred Stock and may be reissued as part of a new series of Preferred Stock
to be created by resolution or resolutions of the Board of Directors, subject to
any conditions and restrictions on issuance set forth herein.

          6.   Liquidation, Dissolution or Winding Up. (A) Upon any liquidation,
dissolution or winding up of the Corporation, voluntary or otherwise, no
distribution shall be made to the holders of shares of stock ranking junior
(either as to dividends or upon liquidation, dissolution or winding up) to the
Series A Junior Participating Preferred Stock unless, prior thereto, the holders
of shares of Series A Junior Participating Preferred Stock shall have received
an amount per share (the "Series A Liquidation Preference") equal to the greater
of (i) $1.00 plus an amount equal to accrued and unpaid dividends and
distributions thereon, whether or not declared, to the date of such payment, or
(ii) the Adjustment Number times the per share amount of all cash and other
property to be distributed in respect of the Common Stock upon such liquidation,
dissolution or winding up of the Corporation.

          (B) In the event, however, that there are not sufficient assets
available to permit payment in full of the Series A Liquidation Preference and
the liquidation preferences of all other classes and series of stock of the
Corporation, if any, that rank on a parity with the Series A Junior
Participating Preferred Stock in respect thereof, then the assets available for
such distribution shall be distributed ratably to the holders of the Series A
Junior Participating Preferred Stock and the holders of such parity shares in
proportion to their respective liquidation preferences.

          (C) Neither the merger or consolidation of the Corporation into or
with another corporation nor the merger or consolidation of any other
corporation into or with the Corporation shall be deemed to be a liquidation,
dissolution or winding up of the Corporation within the meaning of this
Section 6.

          7.   Consolidation, Merger, Etc.  In case the Corporation shall enter
into any consolidation, merger, combination or other transaction in which the
outstanding shares of Common Stock are exchanged for or changed into other stock
or securities, cash and/or any other property, then in any such case each share
of Series A Junior Participating Preferred Stock shall

                                      A-4
<PAGE>

at the same time be similarly exchanged or changed into an amount per share
equal to the Adjustment Number times the aggregate amount of stock, securities,
cash and/or any other property (payable in kind), as the case may be, into which
or for which each share of Common Stock is changed or exchanged.

          8.   No Redemption.  Shares of Series A Junior Participating Preferred
Stock shall not be subject to redemption by the Company.

          9.   Ranking.  The Series A Junior Participating Preferred Stock shall
rank junior to all other series of the Preferred Stock as to the payment of
dividends and as to the distribution of assets upon liquidation, dissolution or
winding up, unless the terms of any such series shall provide otherwise, and
shall rank senior to the Common Stock as to such matters.

          10.  Amendment.  At any time that any shares of Series A Junior
Participating Preferred Stock are outstanding, the Amended and Restated
Certificate of Incorporation of the Corporation shall not be amended in any
manner which would materially alter or change the powers, preferences or special
rights of the Series A Junior Participating Preferred Stock so as to affect them
adversely without the affirmative vote of the holders of two-thirds of the
outstanding shares of Series A Junior Participating Preferred Stock, voting
separately as a class.

          11.  Fractional Shares.  Series A Junior Participating Preferred Stock
may be issued in fractions of a share that shall entitle the holder, in
proportion to such holder's fractional shares, to exercise voting rights,
receive dividends, participate in distributions and to have the benefit of all
other rights of holders of Series A Junior Participating Preferred Stock.

                                      A-5
<PAGE>

                                                                       Exhibit B
                                                                       ---------

                           Form of Right Certificate

Certificate No. R-______

          NOT EXERCISABLE AFTER August 17, 2009 OR EARLIER IF
          REDEMPTION OR EXCHANGE OCCURS.  THE RIGHTS ARE
          SUBJECT TO REDEMPTION AT $.01 PER RIGHT AND TO
          EXCHANGE ON THE TERMS SET FORTH IN THE RIGHTS
          AGREEMENT. UNDER CERTAIN CIRCUMSTANCES, AS
          SET FORTH IN THE RIGHTS AGREEMENT, RIGHTS
          OWNED BY OR TRANSFERRED TO ANY PERSON WHO IS
          OR BECOMES AN ACQUIRING PERSON (AS DEFINED IN
          THE RIGHTS AGREEMENT) AND CERTAIN TRANSFEREES
          THEREOF WILL BECOME NULL AND VOID AND WILL NO
          LONGER BE TRANSFERABLE.


                               RIGHT CERTIFICATE

                                C-COR.net Corp.

          This certifies that ____________________________ or registered
assigns, is the registered owner of the number of Rights set forth above, each
of which entitles the owner thereof, subject to the terms, provisions and
conditions of the Rights Agreement, dated as of August 17, 1999, as the same may
be amended from time to time (the "Rights Agreement"), between C-COR.net Corp.,
a Pennsylvania corporation (the "Company"), and American Stock Transfer & Trust
Co., as Rights Agent (the "Rights Agent"), to purchase from the Company at any
time after the Distribution Date (as such term is defined in the Rights
Agreement) and prior to 5:00 P.M., New York City time, on August 17, 2009 at the
office or agency of the Rights Agent designated for such purpose, or of its
successor as Rights Agent, one one-hundredth of a fully paid non-assessable
share of Series A Junior Participating Preferred Stock, no par value per share
(the "Preferred Stock"), of the Company at a purchase price of $150.00 per one
one-hundredth of a share of Preferred Stock (the "Purchase Price"), upon
presentation and surrender of this Right Certificate with the Form of Election
to Purchase duly executed.  The number of Rights evidenced by this Rights
Certificate (and the number of one one-hundredths of a share of Preferred Stock
which may be purchased upon exercise hereof) set forth above, and the Purchase

                                      B-1
<PAGE>

Price set forth above, are the number and Purchase Price as of August 17, 1999,
based on the Preferred Stock as constituted at such date.  As provided in the
Rights Agreement, the Purchase Price, the number of one one-hundredths of a
share of Preferred Stock (or other securities or property) which may be
purchased upon the exercise of the Rights and the number of Rights evidenced by
this Right Certificate are subject to modification and adjustment upon the
happening of certain events.

          This Right Certificate is subject to all of the terms, provisions and
conditions of the Rights Agreement, which terms, provisions and conditions are
hereby incorporated herein by reference and made a part hereof and to which
Rights Agreement reference is hereby made for a full description of the rights,
limitations of rights, obligations, duties and immunities hereunder of the
Rights Agent, the Company and the holders of the Right Certificates.  Copies of
the Rights Agreement are on file at the principal executive offices of the
Company and the above-mentioned office or agency of the Rights Agent.  The
Company will mail to the holder of this Right Certificate a copy of the Rights
Agreement without charge after receipt of a written request therefor.

          This Right Certificate, with or without other Right Certificates, upon
surrender at the office or agency of the Rights Agent designated for such
purpose, may be exchanged for another Right Certificate or Right Certificates of
like tenor and date evidencing Rights entitling the holder to purchase a like
aggregate number of shares of Preferred Stock as the Rights evidenced by the
Right Certificate or Right Certificates surrendered shall have entitled such
holder to purchase.  If this Right Certificate shall be exercised in part, the
holder shall be entitled to receive upon surrender hereof another Right
Certificate or Right Certificates for the number of whole Rights not exercised.

          Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Certificate (i) may be redeemed by the Company at a redemption
price of $.01 per Right or (ii) may be exchanged in whole or in part for shares
of the Company's Common Stock, par value $.10 per share, or shares of Preferred
Stock.

          No fractional shares of Preferred Stock or Common Stock will be issued
upon the exercise or exchange of any Right or Rights evidenced hereby (other
than fractions of Preferred Stock which are integral multiples of one one-
hundredth of a share of Preferred Stock, which may, at the election of the
Company, be evidenced by depository receipts), but in lieu thereof a cash
payment will be made, as provided in the Rights Agreement.

                                      B-2
<PAGE>

          No holder of this Right Certificate, as such, shall be entitled to
vote or receive dividends or be deemed for any purpose the holder of the
Preferred Stock or of any other securities of the Company which may at any time
be issuable on the exercise or exchange hereof, nor shall anything contained in
the Rights Agreement or herein be construed to confer upon the holder hereof, as
such, any of the rights of a shareholder of the Company or any right to vote for
the election of directors or upon any matter submitted to shareholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting shareholders (except as
provided in the Rights Agreement) or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Right
Certificate shall have been exercised or exchanged as provided in the Rights
Agreement.

          This Right Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Rights Agent.

          WITNESS the facsimile signature of the proper officers of the Company
and its corporate seal.  Dated as of ___________, ____.

                              C-COR.net Corp.


                              By:
                                 -----------------------------------------------
                                    [Title]

                              ATTEST:


                              --------------------------------------------------
                                    [Title]

Countersigned:

AMERICAN STOCK TRANSFER & TRUST CO.,
as Rights Agent

By__________________________________
     [Title]

                                      B-3
<PAGE>

                   Form of Reverse Side of Right Certificate

                              FORM OF ASSIGNMENT
                              ------------------

               (To be executed by the registered holder if such
               holder desires to transfer the Right Certificate)

          FOR VALUE RECEIVED __________________________ hereby sells, assigns
and transfers unto _____________________________________________________________
                         (Please print name and address of transferee)

_________________________________________________________________
Rights represented by this Right Certificate, together with all right, title and
interest therein, and does hereby irrevocably constitute and appoint

__________________________________________
Attorney, to transfer said Rights on the books of the within-named Company, with
full power of substitution.

Dated:  ____________________________


                              ____________________________________
                                         Signature

Signature Guaranteed:


          Signatures must be guaranteed by a bank, trust company, broker, dealer
or other eligible institution participating in a recognized signature guarantee
medallion program.

 .................................................
                         (To be completed)

          The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by, were not acquired by the
undersigned from, and are not being assigned to an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).

                                      B-4
<PAGE>

                         ____________________________________
                                         Signature

                                      B-5
<PAGE>

             Form of Reverse Side of Right Certificate - continued

                         FORM OF ELECTION TO PURCHASE
                         ----------------------------

                 (To be executed if holder desires to exercise
                 Rights represented by the Rights Certificate)

To C-COR.net Corp.:

          The undersigned hereby irrevocably elects to exercise ________ Rights
represented by this Right Certificate to purchase the shares of Preferred Stock
(or other securities or property) issuable upon the exercise of such Rights and
requests that certificates for such shares of Preferred Stock (or such other
securities) be issued in the name of:

_________________________________________________________________
                        (Please print name and address)

_________________________________________________________________

If such number of Rights shall not be all the Rights evidenced by this Right
Certificate, a new Right Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number   ___________________________________

_________________________________________________________________
                        (Please print name and address)

_________________________________________________________________

Dated:________________________

                              ____________________________________
                                         Signature
       (Signature must conform to holder specified on Right Certificate)

Signature Guaranteed:

                                      B-6
<PAGE>

          Signature must be guaranteed by a bank, trust company, broker, dealer
or other eligible institution participating in a recognized signature guarantee
medallion program.

                                      B-7
<PAGE>

             Form of Reverse Side of Right Certificate - continued

_________________________________________________________________
                               (To be completed)

          The undersigned certifies that the Rights evidenced by this Right
Certificate are not beneficially owned by, and were not acquired by the
undersigned from, an Acquiring Person or an Affiliate or Associate thereof (as
defined in the Rights Agreement).


                              ____________________________________
                                         Signature

_________________________________________________________________


                                     NOTICE
                                     ------

          The signature in the Form of Assignment or Form of Election to
Purchase, as the case may be, must conform to the name as written upon the face
of this Right Certificate in every particular, without alteration or enlargement
or any change whatsoever.

          In the event the certification set forth above in the Form of
Assignment or the Form of Election to Purchase, as the case may be, is not
completed, such Assignment or Election to Purchase will not be honored.

                                      B-8
<PAGE>

                                                                       Exhibit C
                                                                       ---------

                 UNDER CERTAIN CIRCUMSTANCES, AS SET FORTH IN
                 THE RIGHTS AGREEMENT, RIGHTS OWNED BY OR
                 TRANSFERRED TO ANY PERSON WHO IS OR BECOMES
                 AN ACQUIRING PERSON (AS DEFINED IN THE RIGHTS
                 AGREEMENT) AND CERTAIN TRANSFEREES THEREOF
                 WILL BECOME NULL AND VOID AND WILL NO LONGER
                 BE TRANSFERABLE.

                         SUMMARY OF RIGHTS TO PURCHASE
                          SHARES OF PREFERRED STOCK OF
                                C-COR.net Corp.

          On August 17, 1999, the Board of Directors of C-COR.net Corp. (the
"Company") declared a dividend of one preferred share purchase right (a "Right")
for each outstanding share of common stock, par value $.10 per share, of the
Company (the "Common Stock").  The dividend is payable on September 9, 1999 to
the shareholders of record on August 30, 1999 (the "Record Date").  Each Right
entitles the registered holder to purchase from the Company one one-hundredth of
a share of Series A Junior Participating Preferred Stock, no par value per
share, of the Company (the "Preferred Stock") at a price of $150.00 per one one-
hundredth of a share of Preferred Stock (the "Purchase Price"), subject to
adjustment.  The description and terms of the Rights are set forth in a Rights
Agreement dated as of August 17, 1999, as the same may be amended from time to
time (the "Rights Agreement"), between the Company and American Stock Transfer &
Trust Co., as Rights Agent (the "Rights Agent").

          Until the earlier to occur of (i) 10 days following a public
announcement that a person or group of affiliated or associated persons (with
certain exceptions, an "Acquiring Person") has acquired beneficial ownership of
20% or more of the outstanding shares of Common Stock or (ii) 10 business days
(or such later date as may be determined by action of the Board of Directors
prior to such time as any person or group of affiliated persons becomes an
Acquiring Person) following the commencement of, or announcement of an intention
to make, a tender offer or exchange offer the consummation of which would result
in the beneficial ownership by a person or group of 20% or more of the
outstanding shares of Common Stock (the earlier of such dates being called the
"Distribution Date"), the Rights will be evidenced, with respect to any of the
Common Stock certificates outstanding as of the Record Date, by such Common
Stock certificate together with a copy of this Summary of Rights.  A person or
group that beneficially owned 20% or more of the outstanding shares of Common
Stock on the date the

                                      C-1
<PAGE>

Rights Agreement was adopted will not be considered an "Acquiring Person" unless
and until such person or group acquires additional shares of Common Stock.

          The Rights Agreement provides that, until the Distribution Date (or
earlier expiration of the Rights), the Rights will be transferred with and only
with the Common Stock. Until the Distribution Date (or earlier expiration of the
Rights), new Common Stock certificates issued after the Record Date upon
transfer or new issuances of Common Stock will contain a notation incorporating
the Rights Agreement by reference.  Until the Distribution Date (or earlier
expiration of the Rights), the surrender for transfer of any certificates for
shares of Common Stock outstanding as of the Record Date, even without such
notation or a copy of this Summary of Rights, will also constitute the transfer
of the Rights associated with the shares of Common Stock represented by such
certificate.  As soon as practicable following the Distribution Date, separate
certificates evidencing the Rights ("Right Certificates") will be mailed to
holders of record of the Common Stock as of the close of business on the
Distribution Date and such separate Right Certificates alone will evidence the
Rights.

          The Rights are not exercisable until the Distribution Date.  The
Rights will expire on August 17, 2009 (the "Final Expiration Date"), unless the
Final Expiration Date is advanced or extended or unless the Rights are earlier
redeemed or exchanged by the Company, in each case as described below.

          The Purchase Price payable, and the number of shares of Preferred
Stock or other securities or property issuable, upon exercise of the Rights is
subject to adjustment from time to time to prevent dilution (i) in the event of
a stock dividend on, or a subdivision, combination or reclassification of, the
Preferred Stock, (ii) upon the grant to holders of the Preferred Stock of
certain rights or warrants to subscribe for or purchase Preferred Stock at a
price, or securities convertible into Preferred Stock with a conversion price,
less than the then-current market price of the Preferred Stock or (iii) upon the
distribution to holders of the Preferred Stock of evidences of indebtedness or
assets (excluding regular periodic cash dividends or dividends payable in
Preferred Stock) or of subscription rights or warrants (other than those
referred to above).

          The number of outstanding Rights is subject to adjustment in the event
of a stock dividend on the Common Stock payable in shares of Common Stock or
subdivisions, consolidations or combinations of the Common Stock occurring, in
any such case, prior to the Distribution Date.

          Shares of Preferred Stock purchasable upon exercise of the Rights will
not be redeemable.  Each share of Preferred Stock will be entitled, when, as and
if declared, to a

                                      C-2
<PAGE>

minimum preferential quarterly dividend payment of $1.00 per share but will be
entitled to an aggregate dividend of 100 times the dividend declared per share
of Common Stock. In the event of liquidation, dissolution or winding up of the
Company, the holders of the Preferred Stock will be entitled to a minimum
preferential payment of $1.00 per share (plus any accrued but unpaid dividends)
but will be entitled to an aggregate payment of 100 times the payment made per
share of Common Stock. Each share of Preferred Stock will have 100 votes, voting
together with the Common Stock. Finally, in the event of any merger,
consolidation or other transaction in which outstanding shares of Common Stock
are converted or exchanged, each share of Preferred Stock will be entitled to
receive 100 times the amount received per share of Common Stock. These rights
are protected by customary antidilution provisions.

          Because of the nature of the Preferred Stock's dividend, liquidation
and voting rights, the value of the one one-hundredth interest in a share of
Preferred Stock purchasable upon exercise of each Right should approximate the
value of one share of Common Stock.

          In the event that any person or group of affiliated or associated
persons becomes an Acquiring Person, each holder of a Right, other than Rights
beneficially owned by the Acquiring Person (which will thereupon become void),
will thereafter have the right to receive upon exercise of a Right that number
of shares of Common Stock having a market value of two times the exercise price
of the Right.

          In the event that, after a person or group has become an Acquiring
Person, the Company is acquired in a merger or other business combination
transaction or 50% or more of its consolidated assets or earning power are sold,
proper provisions will be made so that each holder of a Right (other than Rights
beneficially owned by an Acquiring Person which will have become void) will
thereafter have the right to receive upon the exercise of a Right that number of
shares of common stock of the person with whom the Company has engaged in the
foregoing transaction (or its parent) that at the time of such transaction have
a market value of two times the exercise price of the Right.

          At any time after any person or group becomes an Acquiring Person and
prior to the earlier of one of the events described in the previous paragraph or
the acquisition by such Acquiring Person of 50% or more of the outstanding
shares of Common Stock, the Board of Directors of the Company may exchange the
Rights (other than Rights owned by such Acquiring Person which will have become
void), in whole or in part, for shares of Common Stock or Preferred Stock (or a
series of the Company's preferred stock having equivalent rights, preferences
and privileges), at an exchange ratio of one share of Common Stock, or a
fractional share of Preferred Stock (or other preferred stock) equivalent in
value thereto, per Right.

                                      C-3
<PAGE>

          With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments require an adjustment of at least 1% in
such Purchase Price.  No fractional shares of Preferred Stock or Common Stock
will be issued (other than fractions of Preferred Stock which are integral
multiples of one one-hundredth of a share of Preferred Stock, which may, at the
election of the Company, be evidenced by depositary receipts), and in lieu
thereof an adjustment in cash will be made based on the current market price of
the Preferred Stock or the Common Stock.

          At any time prior to the time an Acquiring Person becomes such, the
Board of Directors of the Company may redeem the Rights in whole, but not in
part, at a price of $.01 per Right (the "Redemption Price").  The redemption of
the Rights may be made effective at such time, on such basis and with such
conditions as the Board of Directors in its sole discretion may establish.
Immediately upon any redemption of the Rights, the right to exercise the Rights
will terminate and the only right of the holders of Rights will be to receive
the Redemption Price.

          For so long as the Rights are then redeemable, the Company may, except
with respect to the redemption price, amend the Rights Agreement in any manner.
After the Rights are no longer redeemable, the Company may, except with respect
to the redemption price, amend the Rights Agreement in any manner that does not
adversely affect the interests of holders of the Rights.

          Until a Right is exercised or exchanged, the holder thereof, as such,
will have no rights as a shareholder of the Company, including, without
limitation, the right to vote or to receive dividends.

          A copy of the Rights Agreement has been filed with the Securities and
Exchange Commission as an Exhibit to a Registration Statement on Form 8-A.  A
copy of the Rights Agreement is available free of charge from the Company.  This
summary description of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Rights Agreement, as the same may
be amended from time to time, which is hereby incorporated herein by reference.


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