Hello all. I am trying to share my Powerbook's (ethernet enabled) internet using Airport, which works great and fine. Now I am trying to get my Airport Extreme to get it's signal from the wireless my Powerbook is broadcasting, and share it on its local LAN to another computer via ethernet. You follow? The only problem is that I don't know the MAC address of my PB's airport...I thought I found it, too, but it didn't work so either I messed something up or I don't have the right one. Does anyone have any clue how I can go about doing this? THANKS!