[c-nsp] vrrpv3 + IPv6 hangs in INIT state

Nick Hilliard nick at foobar.org
Tue May 23 08:25:04 EDT 2017

Rolf Hanßen wrote:
> I just tried to get VRRP + IPv6 running on a Sup2T with 15.1(2)SY1.
> I enabled VRRPv3 and it works at least for IPv4.

Yeah, this caught me too.  The primary ipv6 address for a vrrpv3 needs
to be an ipv6 link-local address:

> http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/15-mt/fhp-15-mt-book/fhrp-vrrpv3.html

> VRRPv3 for IPv6 requires that a primary virtual link-local IPv6
> address is configured to allow the group to operate. After the
> primary link-local IPv6 address is established on the group, you can
> add the secondary global addresses.

So your configuration should look like this:

fhrp version vrrp v3
interface Vlan2000
 vrrp 6 address-family ipv6
  address fe80::1 primary
  address xxxx:xxxx:xxxx:xxxx::1/64


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