Bridging Networks Between Buildings

view story

http://serverfault.com – I'm trying to set up a WiFi link between two buildings. On one side I've got a regular SoHo (network A) router (Linksys EA4500) and on the other side I've got an Alfa AWUS036H (network B) connected to some Debian box. On the Debian box I can connect to network A and have no issues. How should I proceed about bridging that connection to the rest of network B? My current thought is to plug an ethernet cable into the Debian box. So the Debian box would be hooked to network B by wire, and network A by wireless. Since this Debian box would not be the router on network B though, this brings u (HowTos)