I am trying to learn how to set-up a router and maintain a configuration and I'm hoping someone can help me.  I'm that sort of person who learns by example.

The configuration is a bit nn standard and will be only used on a local area network.

Essentially, how would I configure BIRD to route everything except DHCP traffic between networks 192.168.0.0/16, 192.168.30.0/16, 192.168.31.0/16 and packets for any other network get sent to 192.168.0.1? 

So, as an example, a device on 192.168.31.4 can talk to 192.168.0.33? 

All using a subnet mask of 255.255.255.0.

I will try and read through the user guide, but at this moment I'm not sure what I need to do to get it to work.