RE: connection sync at failover, email, and using only basic IPmgmt

["Richard Pickett" <Richard.Pickett@xxxxxxxxxxxxxxxxxxx>]

> Richard Pickett wrote:
>  > [...]
>  > When we fire up keepalived on both boxes and run tcpdump -I eth2 we
se
>  > *no* traffic no matter how many connections come on or how long the
>  > connection runs (some are downloads that last over a minute).
>  > [...]
> 
> I had similar problems that were caused by firewall issues.
> Looking at my firewall now I thibnk it is perhaps multicast traffic
> following protocol 112.
> Once I fixed the firewall issues things started working.
> Sorry I don't have clearer description.

We don't have any iptables rules on these boxes at all. We see IP 112 on
the other NICs (the every second "I'm the master" broadcast), but we
never see any traffic at all on the "sync" nic.