I was able to get an A2000 online by running an Ethernet cable to my iBook and then routing traffic through the Mac's wireless (easy to set up in Mac's system prefs). It worked fine for getting me out to the Internet, but I couldn't get any local network services running (Samba, Envoy) due to the routing and complexities of the subnet. Someone with more networking ability could probably get it working, but I ultimately decided just to get another dedicated wireless bridge so I could have it directly (wirelessly) connected to my main router - problem solved.
