Facing issue in HSRP configuration with IPV6

[daljitsinghtagore]

Hi,

i am trying to configure hsrp with ipv6 and all command are running for hsrp excep this command standby 1 ipv6 2001::10/64

and i have also tried  standby 1 ipv6 2001::10, then showing error:- % invalid link-local address.

i have also configred  standby 1 ipv6 autoconfig then hsrp is not running

So i need help kindly help me anyone one this.

[Liam Kenneally]

Hi Daljitsinghtagore,

UPDATE:: I found this video from Cisco TAC, this will walk you through configguring IPv6 HSRP. I hope this helps

https://supportforums.cisco.com/videos/2829

I have never configured IPv6 HSRP, so you will have to bear with me.

But something I do notice off the bat is that you are using the '2001::/64' address space.

Link local addresses are addresses local to that interface and are used to reach neigbors hence the name link local. these addresses beguin with fe80::/10 im pretty sure if you tried fe80::10 as the IPv6 address your router would accept it.

As soon as you run the command ipv6 enable under an interface

e.g. router(config-if)ipv6 enable. - This enables a eui-64 link local address.

If you then do a 'sh ipv6 interface brief'

you should get an address starting fe80: this is your routers link loal address.

See below snippet from Cisco

"The purpose of this document is to provide an  understanding of IPv6 Link-local address in a network. A link-local  address is an IPv6 unicast address that can be automatically configured  on any interface using the link-local prefix FE80::/10 (1111 1110 10)  and the interface identifier in the modified EUI-64 format. Link-local  addresses are not necessarily bound to the MAC address (configured in a  EUI-64 format). Link-local addresses can also be manually configured in  the FE80::/10 format using the ipv6 address link-local command.

These addresses refer only to a particular physical link and are used  for addressing on a single link for purposes such as automatic address  configuration and neighbor discovery protocol. Link-local addresses can  be used to reach the neighboring nodes attached to the same link. The  nodes do not need a globally unique address to communicate. Routers will  not forward datagram using link-local addresses. IPv6 routers must not  forward packets that have link-local source or destination addresses to  other links. All IPv6 enabled interfaces have a link-local unicast  address."

http://www.cisco.com/en/US/tech/tk872/technologies_configuration_example09186a0080ba1d07.shtml#intro

I will load up GNS3 later when I have some time to confirm.

Regards,

Liam

Message was edited by: Liam Kenneally

[Julio Carvajal]

Hello,

Can you share what you have configured so far that is no running?

Regards

[Harold Ritter]

Hi,

The following error message "% invalid link-local address" means that the IOS version you currently use, doe not support a global unicast address (GUA) as the HSRP virtual address. You therefore need to either use a link-local address as the HSRP virtual address or to upgrade the IOS. The latter is usually only required in specific cases described in the following document:

http://www.cisco.com/en/US/docs/ios-xml/ios/ipapp_fhrp/configuration/15-sy/ip6-fhrp-hsrp-global.html

Hope this helps