Trouble using Linksys WGA54G "game adapter" as wireless bridge
I am attempting to use a Linksys WGA54G "game adapter" to provide a wired connection to a desktop. I have a wireless network to which I want a computer without a wireless card to connect. I purchased the game adapter, which is basically a silly name for a wireless-ethernet bridge, and hooked it up (configuring it via a Windows machine).
The adapter is properly configured and can "see" the wireless network. Then I ran the wired end of the adapter to a switch, to which I attached a Windows 2000 machine and a Debian Linux (Sarge with 2.4.twenty-something) machine.
On the Windows machine I disable the LAN connection and re-enable it. After a short wait it comes up, and I have a wired connection via the game adapter. I can ping the wireless router, browse web sites, etc.
On the Linux machine I run "ifup eth0", which proceeds to ping the broadcast for an IP. No responses are ever heard, and the network remains unreachable. If I manually configure an IP address (an address that is on the same subnet as the Windows machine and every wireless client in the house) on the Linux machine, the Linux and Windows machines can see each other, but the Linux machine cannot see the router or the outside world.
So to summarize... Windows can use DHCP to get all the necessary information about the wireless network (by way of the adapter) to get online, but Linux cannot. When manually configured, the Linux machine cannot see the router or the outside world, but can see other machines within the subnet.
Any hints / thoughts / wild conjectures are greatly appreciated!