Date: Tue, 12 Jun 2012 14:56:27 +0200 From: Damien Fleuriot <ml@my.gd> To: Pete French <petefrench@ingresso.co.uk> Cc: freebsd-stable@freebsd.org Subject: Re: IPv6 and CARP crashes boxes Message-ID: <4FD73C7B.4090309@my.gd> In-Reply-To: <E1SeQWZ-0007x5-Uu@dilbert.ingresso.co.uk> References: <E1SeQWZ-0007x5-Uu@dilbert.ingresso.co.uk>
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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.
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