One public ip not failing over.
OK This is wierd…
I failed the MASTER over to the Backup firewall, then unplugged the DMZ on the MASTER to reroute the cable and I get word that one of our services is not working. I plug the MASTER DMZ back in and he's able to connect. Just to make sure it wasn't a fluke, I unplugged it again and once again it interrupted service.
The ip is right in the middle of a subnet and no other services were interrupted.
I assume it's an easy fix and I'm just blanking out on this so please, ideas are very welcome.
So just one client on the network was impacted?
Probably that client has something hardcoded pointed at the master and not a CARP VIP (e.g. its gateway or DNS servers)