[c-nsp] IPV6 in general was Re: Large networks

Phil Mayers p.mayers at imperial.ac.uk
Thu Aug 27 05:36:51 EDT 2009


Grzegorz Janoszka wrote:
> Daniel Verlouw wrote:
>> No real experience with HSRP though, can anyone shed some light on that?
>> I understand it only works for link-local addresses?
> 
> Yes, unfortunately it is only link-local. I am just trying to figure it 
> out how to marry link-local with our global ipv6 assignments.
> 

That's now the way it works AFAICT.

Basically, the routers still send router-advertisments. However, the 
link-local address in the next-hop is the HSRPv6 virtual IP, and floats 
between the active & backup.

So you only *need* the link-local.


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