yes... as long as you manually switch static routes if need there be...
i think it would as it doesn't matter which interface you will need to 
use OPT1 as WAN2...
note: m0n0wall doesn't support failover between two wan entries...
you can search to posts on how to do what you are talking about...

kerem

Chris Mason (Lists) wrote:

> I have a Soekris 4501 unit with M0n0wall installed, works very well. 
> At this location I have two inetnet feeds, one very stable but limited 
> bandwidth and one CATV feed that is cheaper and less stable. I would 
> like to use the third network interface as WAN2 and use static routes 
> to define certain hosts that traffic would be routed to through this 
> interface. Can this work? Can the third interface on a Soekris be WAN2?
>