This is very silly and very pointless. If they already have the WEP keys then grabbing frames to get whitelisted MAC addresses is trivial. This does nothing but make it more annoying for legitimate users.
Also, for these silly things I usually keep a DD-WRT capable router around like the trusty WRT54G or one of the newer Buffalo routers. It's easy to use it in a bridge configuration to have as many devices as you want behind it.
Also, for these silly things I usually keep a DD-WRT capable router around like the trusty WRT54G or one of the newer Buffalo routers. It's easy to use it in a bridge configuration to have as many devices as you want behind it.