So we have setup a set of 2 node clusters with multiple SQL instances running in an active/passive configuration.
Everything works fine for inbound communication as the SQL instances listen on the respective IP addresses, but! for outbound say to linked SQL where an external entity requires we have 1:1 NATs established they are failing regularly as the outbound traffic is using the physical host IP.
After many hours of googling I have not found a solution to this and wonder why establishing /32 (1:1) static routes would not work to force the communication to traverse a specific interface on the cluster?
eg: ROUTE ADD 12.12.12.12 MASK 255.255.255.255 172.1.1.1 METRIC 1 IF 3
Thoughts?