per-interface default routes?

[Mark Messier]

 >> Route has more information if you want to setup default routes  
for interfaces.

I'm familiar with route(8)... but I don't see how that will work.
Can you expand on your comment?

I'm  likely to do the ipfw approach suggested by Wojceich,
as soon as I rebuild with "options IPFIREWALL_FORWARD",

Thanks,
-mark