Thanks for the replies, but I don't want to do actual bridging. I'm 
talking about a pseudo-bridge that just uses static routing (instead of 
subnetting) to determine which interface to send a packet to. Has anyone 
done this setup before?

I think part of the problem is that I would need to be running choparp 
on both the internal and external interfaces.

For reference, see http://lartc.org/howto/lartc.bridging.proxy-arp.html

Kevin R. Bullock
Internet Systems Designer and Administrator
Minnesota Center Against Violence and Abuse
University of Minnesota
612.624.8796



Matchstick wrote:

>Tuesday, November 16, 2004, 10:29:36 AM, Harald Neuffer (neuf at lrs dot eei dot uni dash erlangen dot de) wrote:
>
>Actually M0n0wall DOES do filtered bridging which is exactly how I
>use it.
>
>Filtered bridging is off by default but the option to turn it on is
>the second option on System/Advanced page.
>
>Once it's turned on (and you've set up your bridge in the Interfaces
>section) then you can apply incoming rules to the WAN interface
>and outgoing rules to the Bridged interface exactly as you would when
>running M0n0 was a NATed firewall.
>
>  
>