[c-nsp] v6 vrrp

[Simon Leinen]

Randy Bush writes:
> r0.sea(config)#fhrp version vrrp v3          
> r0.sea(config)#interface GigabitEthernet0/0/0
> r0.sea(config-if)# vrrp 1 address-family ipv4
> r0.sea(config-if-vrrp)#  description ipv4 vrrp
> r0.sea(config-if-vrrp)#  address 147.28.0.1 primary
> r0.sea(config-if-vrrp)#  priority 120
> r0.sea(config-if-vrrp)# vrrp 2 address-family ipv6
> r0.sea(config-if-vrrp)#  description ipv6 vrrp
> r0.sea(config-if-vrrp)#  address 2001:418:1::1 primary
> % You must specify a prefix for a non link-local address.
> r0.sea(config-if-vrrp)#

> clue bat?

For a global IPv6 address, it wants a prefix length.  Here's an example
of a (presumably working) IPv6 VRRP setup on one of our routers:

    interface GigabitEthernet1/2
     ! ...
     vrrp 254 address-family ipv6
      priority 110
      address FE80::254 primary
      address 2001:620:F1FF:F2F0::254/64
      exit-vrrp

I don't claim to understand this (or the reason why the prefix length is
required for non-link-local addresses.  I'm sure my teammates know! Can
ask them on Monday...

Cheers,
-- 
Simon.