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How to enable Ipv6 in catalyst switches.


I want to implement Ipv6 networking in our lab.  Before get into production, I have planned to try with testing set up. The testing set up would be comprising of  a switch, router and some of desktops.  I have a C2900XL series switches, please let me know whether can I upgrade the latest IOS image inorder to support Ipv6 in this switch. If so, please let me know the IOS version which is compatible for this switch.

The switch version details are as given below,


Cisco Internetwork Operating System Software

IOS (tm) C2900XL Software (C2900XL-C3H2L9S-M), Version 12.0(5)WC17, RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2007 by cisco Systems, Inc.

Compiled Tue 13-Feb-07 15:28 by antonino

Image text-base: 0x00003000, data-base: 0x0038A0D8

ROM: Bootstrap program is C2900XL boot loader

Catalyst2900 uptime is 4 weeks, 1 day, 5 hours, 13 minutes

System returned to ROM by reload

System restarted at 17:07:24 IST Sun Oct 17 2010

System image file is "flash:c2900xl-c3h2l9s-mz.120-5.WC17.bin"

cisco WS-C2924-XL (PowerPC403GA) processor (revision 0x11) with 8192K/1024K bytes of memory.

Processor board ID FAB0508U0QB, with hardware revision 0x01

Last reset from warm-reset

Processor is running Enterprise Edition Software

Cluster command switch capable

Cluster member switch capable

24 FastEthernet/IEEE 802.3 interface(s)

32K bytes of flash-simulated non-volatile configuration memory.


Looking forward your prompt response.



Everyone's tags (3)
Cisco Employee

Re: How to enable Ipv6 in catalyst switches.

Latest release available on CCO for 2900XL is 12.0(5)WC17 released on April 2007.

To my knowledge, 2900XL do not support IPv6 (IPv6 traffic can be switched through as any other L2 frame).

As you might know, 2900XL is EoS/EoL and Cisco do not make any more maintenance releases:

- Yogesh

Hall of Fame Super Gold

Re: How to enable Ipv6 in catalyst switches.

2900XL/3500XL does not support IPv6.

Why would you need IPv6 for a purely Layer2 switch like a 2900XL/3500XL?  Assigning IP addresses on a layer 2 switch is purely for administrative/management purposes.