Re: keepalived backup issues

To: " users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: keepalived backup issues
From: Mike Borsuk <mrb@xxxxxxx>
Date: Fri, 28 Apr 2006 18:08:15 -0400
On Thu, Apr 27, 2006 at 04:19:23PM -0400, Mike Borsuk wrote:
> On Thu, Apr 27, 2006 at 04:10:29PM +0100, Graeme Fowler wrote:
> No, its not a firewall issue.  Let me just simplify what i've said:  if
> I've got 2 vrrp_instances defined, tcpdump shows that only one is making
> advertisments:

Ok, the problem was related to a NAT rule I had in iptables to allow the
realservers out.  The multicast source ip for the VRRP adverts was getting
SNAT'ed.  And although I didn't the the source address mattered for
multicast, apparently it does to some degree.


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