HSRP vs VRRP for IPv6 on IOS-XE - rekindling an old flame

Thu Jan 31 19:09:03 UTC 2013

On 20/08/2012 15:51, Nick Hilliard wrote:
> Last time I looked, the support looked like this:
> 
> XR:  v4: HSRPv1, VRRP			v6: VRRP
> IOS: v4: HSRPv1, HSRPv2, VRRP, GLBP	v6: HSRPv2, GLBP
> 
> You'll notice a certain lack of joined-up thinking here.

Looks like IOS 15.2(4)M finally supports VRRPv3, which supports ipv6.

> http://www.cisco.com/en/US/docs/ios/15_2m_and_t/release/notes/152-4MNEWF.html#wp63073

This is really useful - finally you can either or both of vanilla IOS or XR
to provide VRRP resilient first hop for ipv6.

Nick