Perplexing Routing question...

[WeNdeL]

At least for me it is...

Let say...

You have a firewall server acting as a LAN's connection to the WAN. It has TWO connections to the WAN with one being the default route for the box.

Lets say those two LAN networks are: 192.168.1.0/24 and 192.168.2.0/24. How would you make the 1 network utilize the firewalls default connection to the WAN but make the 2 network utilize the other (non-default route) connection.

Any ideas to get me moving in the right direction?