Hardware

I want to use an old Compaq Armada 1750 to create a wireless to wireless bridge. For the WAN connection, I would like to use my ALFA AWUS050NH USB adapter, and a USB N adapter to provide for a access point internally. Would that be possible under the latest version of m0n0wall or look at using pfsense?

Bridging with wireless is a challenge with any distro. The issue is everything from one associated wireless client must come from that card's MAC address. There isn't any way in BSD to translate only the source MAC address, which means you're stuck using NAT, or routing a private subnet, for that kind of setup. Can't transparently bridge wireless like that.