WAN CARP IP without NAT

[Chip Schweiss]

I'm trying to set up an HA OPNsense pair of servers.  Internet NAT is handled by an upstream gateway.   The WAN IP address on OPNsense is still a private IP address and no NAT is done when routing through OPNsense.

If I set a static IP on each OPNsense server on the WAN subnet and the CARP virtual IP to the address I want as the floating gateway IP, how do I get this to work without using NAT to specify the outbound IP address?

Thanks!
-Chip