http://www.tek-tips.com/viewthread.cfm?qid=1178937&page=1

If you have an Xbox and have been thinking about getting a wireless card for it, but you don’t want to spend a lot on microsoft’s adapter, you can use a wireless router that you may have sitting around to do the job. You’ll need to use DD-WRT’s firmware to load onto the router before […]

http://www.microsoft.com/protect/default.aspx