Tangential asks: "I'm looking for advice. I have a rental home at the beach that I've equipped with Cable Modem and WiFi. After trying to use it with WEP for a summer I gave that up (life is far too short for me to talk every renter thru configuring their notebook). I would like a bit of control over who uses my system. I've blocked outbound port 25 (since my ISP doesn't), but what I'd really like to do is run something like hotels do, where you enter a password and activate your MAC address for a certain amount of time, Then I could just tell the renter the password and manage that remotely. I run OSS in my Linksys WRT-54G router at home (from Sveasoft) and I like being able to use a low cost router for such a function. I'd like to know what systems other folks have encountered that do this using OSS and mass market equipment."