Had to register just to thank you!
Tested on Ubuntu and works like charm. This really speeds up rogue access point attacks!
However I didn't manage to install the isc-dhcp-server on BackTrack. I think it's a Ubuntu only package and although BackTrack is based on it, I ran into some problems. apt-get couldn't (obviously) find it but I downloaded the .deb and noticed there are just too many missing or conflicting packages so it's not really an option. Tried editing the file to see if I can get it work with dhcp3-server and after a quick glance it seems to be working alright.
Any chances of adding some little support for dhcp3-server?