[pfSense Support] CARP - battle of the firewalls

[Alastair Stevens]

Title: CARP - battle of the firewalls

Hi again

We're gradually getting closer to our desired setup: 2 pfSense boxes with CARP failover, each with multiple LAN interfaces and load-balanced dual WANs.  This is obviously quite a complex setup, and getting it all working at once seems elusive - but we're almost there!

At the moment, the biggest problem is still CARP.  When firewall B is brought up, it tries to become "master" for both LAN interfaces, whilst remaining "backup" for the WANS.  This is at the same time that firewall A is "master" for everything, as it should be.  So the CARP failover just isn't working - the machines seem to be fighting each other to become master, which breaks things.

I have checked the settings, and consulted the list, multiple times, but can't get to the bottom of this.  Any more ideas on why CARP is behaving so erratically?

The machines are both running RC1 + SNAPSHOT_07_06_2006, as suggested by Scott earlier, and they have a dedicated crossover link for the pfsync traffic.

Regards
Alastair