I hooked up my broadband adapter..
I was disappointed to find that the newest available Sega Web Browser (v2.6) did not support broadband. I think version 3.0 is supposed to be out shortly, and that is supposed to support ethernet.
Quake 3 Arena worked just fine. Initially, I mistyped the IP address of my DNS server, which caused Q3 to hang. After I fixed that, it worked like a champ.
The configuration could be simpler.. like a check box to enable DHCP, rather than knowing that leaving 0.0.0.0 in the address & router fields means that it will use DHCP.
Also, I used it from behind my Linux gateway box, which was doing NAT. No problems there.. NAT'd just fine.