IPv6 and CARP crashes boxes

[Damien Fleuriot]

On 6/12/12 2:48 PM, Pete French wrote:
> Meant to reply to this at the time, but have been away...
> 
>> Has anyone else run into problems when using IPv6 + CARP ?
> 
> I ran into some - aliases on a CARP integface did not seem
> to work proprly - but if you workaround that then it appears
> to work fine. We are using it in production with no problems.
> 
>> I plan to hold a presentation at work on IP6 and why we should start
>> using it, however I cannot promote the use of IP6 without redundancy
>> between firewalls like we currently do with CARP + pfsync.
> 
> The redundancy with pfsync works properly - an ssh session
> is maintained through the firewalls when they failover. I
> configure my machines to use a paiur of carp interfaces on each
> physical port, so I am not mixing IPv4 and IPv6 on the same
> interface. I onyl did that as an experiment when I was trying
> to work around the aliases problem, but have kept it for "tidnyess"
> 
> Basically our experience of the setup has been very positive - our
> main connectivity issues have come from the HE/Cogent peering squabble
> rather than any FreeBSD/Carp/PF failing.
> 
> cheers,
> 
> -pete.


Thanks for the feedback Pete, what are you running ?

We're on 8-STABLE here.

I've got some spare time on my hands actually, I'm gonna try some more
today, both on an ipv6-only carp, then on a v4+v6.