How Do I check if my cisco devices are IPv6 ready

[jecooler999]

good day,

which document can assist me in checking one by one my cisco devices is they are IPV6 ready?

[Marcin Latosiewicz]

Percy,

The place I would start is the place I check for any features support. Feature navigator:

http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp

Note that it may not yield 100% accurate results.

If in doubt it's always best to check configuration guide for given software to understand what features are supported and how (restrictions/configurations)

What specific information would you like to find?

Marcin

[jecooler999]

Please find attached, I want to make sure all my equipment support IPv6.

[Marcin Latosiewicz]

Percy,

For basic configuration of IPv6:

http://www.cisco.com/en/US/docs/ios/ipv6/command/reference/ipv6_05.html#wp2320102

Check the command history, you see what versions started supporting basic IPv6 (w bit simplified of course).

Now this does not include L2 platforms (switches/APs you listed) for support of IPv6 features on those platforms best check configuration guides and feature navigator.

Marcin

[fabios]

Percy,

the community generally does not do the work for you but it is very helpful in finding a way to solve your problems.

At layer 2 IPv6 is transparent. A layer 2 switch only cares about the MAC addresses in the frames (source and destination). So any layer 2 switch will happily switch frames even if they contain a IPv6 packet (or appletalk, DEC Novell and many other protocol today unheard of). This is also true for HUBS and repeaters. Even those designed before IPv6 was conceived will work.

Now if you manage these switches and you want to move from managing them with IPv4 tools to IPv6 tools then it is a different issue. Same if you start using the layer 3 capabilities of switches and routers.

The only way to answer you question is to go in feature navigator and find out if all the features you need are supported on each platform with the software release you are running.

We do not know what features you need ....

Hope this helps

Cheers

Fabio

[jecooler999]

Thank you very much for your response. So does this mean, at layer 2 for now e.g with cisco 2950’s I won’t be able to configure my management vlan addresses with IPv6......?

[fabios]

Hi Percy,

not sure about that and it might well depend on the IOS version you are running.

One way to find it out is to go in interface config mode

login

enable

conf term

interface (your management interface should be VLAN 1)

and try ipv6 address 2001::1/64 (or whatever address space you have)

if it works you will be able to telnet to the switch using ipv6 (and also access the http management interface and the sort.

Hope this helps.

Fabio

[cisco_lad2004]

Another thing to keep in mind, is whether IPv6 support is H/W or S/W based !

Samir

Sent from Cisco Technical Support iPad App

[avayner]

With regards to layer 2 devices, especially switches, don't assume that there is no IPv6 support is requried...

For example switches implement layer 2 IGMP snooping in order to avoid VLAN wide multicast flooding. In IPv6 it's MLD, and the switch needs to support MLD snooping, or else you would have multicast flooding.

Other kinds of layer 2 IPv6 feature support would be things such as access lists (even though these are layer 2 switches, we can do layer 3/4 ACLs...), as well as security related features (the equivelent of ARP/DHCP anti-spoofing for v6)

Arie

[Phillip Remaker]

The readiness is assesed not by device, but by software release.

This is a pretty useful reference:

http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-roadmap.html