The magic words...

 /sbin/route add -net 10.0.0.0 netmask 255.255.255.0 gw 192.168.1.108 dev eth0

Just got back from Lac La Biche, up a couple hours northeast of Edmonton. Very nice place to hang out, we saw lots of birds, wildlife and not very many people. :) We saw a few water bombers filling up with water, presumably to help with the forest fires up north. Big big planes.