I have pfSense (1.2.3) with a WAN (gateway 10.10.20.1/24) and an OPT1 (gateway 10.10.21.1/24). I also have a LAN (static 10.10.12.1/24, DHCP 10.10.12.128-199/24).
I want to create rules so that traffic coming from LAN go through WAN if the source IP address is below 10.10.12.128/24 and through OPT1 otherwise.
I would I go and make that happen?
Solution: I'm filtering on two subnets as proposed by cpbills and I've added rules on the LAN interface that filters all source 10.10.12.128/25 and then uses the gateway of OPT1 and for the rest, then it falls back on the default route that forward all traffic to the WAN gateway.