[nsp] DHCP Option 82 problem on 3550xl

[Octave]

Hi,
My 3550xl doesn't want to switch dhcp packets (no problem on extreme, foundry, 3com
and 6k catos). I found out this url, but I have no "service dhcp" on 12.0(5)WC7

http://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_guide_chapter09186a00800c6ed2.html

What is wrong ? 

PS: I can not use bootp. I have to use dhcp/tftp

Thanks for help
Octave


Cisco Internetwork Operating System Software 
IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5)WC7, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2003 by cisco Systems, Inc.
Compiled Wed 05-Mar-03 09:59 by antonino
Image text-base: 0x00003000, data-base: 0x0034DEE8

ROM: Bootstrap program is C3500XL boot loader

koko uptime is 2 days, 6 hours, 59 minutes
System returned to ROM by reload
System image file is "flash:c3500xl-c3h2s-mz.120-5.WC7.bin"


cisco WS-C3548-XL (PowerPC403) processor (revision 0x01) with 16384K/1024K bytes of memory.
Processor board ID FAA0415K027, with hardware revision 0x00
Last reset from warm-reset

Processor is running Enterprise Edition Software
Cluster command switch capable
Cluster member switch capable
48 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address: 00:01:96:CB:D1:80
Motherboard assembly number: 73-3903-04
Power supply part number: 34-0971-01
Motherboard serial number: FAA04149GMB
Power supply serial number: PAC0409037V
Model revision number: A0
Motherboard revision number: 01
Model number: WS-C3548-XL-EN
System serial number: FAA0415K027
Configuration register is 0xF