Choose CARP interface priority
I have two pfsense with CARP sync on their LAN interfaces, in order to be able to properly communicate with a Cisco hrsp.
Both pfsenses WAN are on two different externally reachable networks, so I can’t configure CARP to have a shared public address.
My problem is one of the pfsenses has a very bad public network that goes offline pretty frequently, and unfortunately this pfsense is the one that usually becomes the CARP master. This causes the desired LAN destination to become unreachable, because the second pfsense is still in CARP BACKUP.
How can I prioritize between the CARP interfaces to ensure the second pfsense LAN interface is always the primary, MASTER interface, unless it goes down?