<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM ELASTIC
NETWORKS INC. FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK>0001088242
<NAME>ELASTIC NETWORKS INC.
<MULTIPLIER>1,000
<S> <C> <C> <C> <C>
<C>
<PERIOD-TYPE> YEAR YEAR YEAR 3-MOS
3-MOS
<FISCAL-YEAR-END> DEC-31-1997 DEC-31-1998 DEC-31-1999 MAR-31-1999
MAR-31-2000
<PERIOD-START> JAN-01-1997 JAN-01-1998 JAN-01-1999 JAN-01-1999
JAN-01-2000
<PERIOD-END> DEC-31-1997 DEC-31-1998 DEC-31-1999 MAR-31-1999
MAR-31-2000
<CASH> 0 0 3,863 0
15,746
<SECURITIES> 0 0 1,750 0
519
<RECEIVABLES> 0 40 1,820 1,350
5,263
<ALLOWANCES> 0 0 250 0
250
<INVENTORY> 0 528 759 2,929
4,021
<CURRENT-ASSETS> 0 568 8,415 4,279
25,748
<PP&E> 28 1,287 1,825 1,332
2,288
<DEPRECIATION> 5 120 473 188
592
<TOTAL-ASSETS> 73 1,735 9,869 5,423
27,546
<CURRENT-LIABILITIES> 1,180 3,523 9,671 2,245
12,282
<BONDS> 0 0 0 0
0
0 0 7,965 0
29,001
0 0 0 0
0
<COMMON> 0 0 154 0
154
<OTHER-SE> 0 (3,521) (9,163) (957)
(14,975)
<TOTAL-LIABILITY-AND-EQUITY> 23 1,735 9,869 5,423
27,546
<SALES> 0 233 8,215 344
6,189
<TOTAL-REVENUES> 0 233 8,215 344
6,189
<CGS> 0 2,146 14,290 803
6,056
<TOTAL-COSTS> 0 2,146 14,290 803
6,056
<OTHER-EXPENSES> 4,503 13,317 14,870 2,927
5,856
<LOSS-PROVISION> 0 0 250 0
0
<INTEREST-EXPENSE> 0 0 0 0
0
<INCOME-PRETAX> (4,503) (15,230) (20,855) (3,386)
(5,679)
<INCOME-TAX> 0 0 0 0
0
<INCOME-CONTINUING> (4,503) (15,230) (20,855) (3,386)
(5,679)
<DISCONTINUED> 0 0 0 0
0
<EXTRAORDINARY> 0 0 0 0
0
<CHANGES> 0 0 20,855 0
0
<NET-INCOME> (4,503) (15,230) (21,188) (3,386)
(5,812)
<EPS-BASIC> (0.28) (0.93) (1.29) (0.21)
(0.36)
<EPS-DILUTED> (0.28) (0.93) (1.29) (0.21)
(0.36)
</TABLE>