Here's the problem. One of my clients has adopted a company wide policy of no wireless access. However, because of this from time to time he has employees who bring in and self-install their own wireless access points.

Basically he's interested in a way of easily tracking this issue or blocking it from happening. Right now he wanders the building (3 floors, thick walls so wireless doesn't usually travel far) with a laptop searching for wiresless signals.

Is anyone aware of a way to lock down the network to prevent rogue WAPs or at least monitor for thier presence?

I'm off to research it more just was interested if anyone here had thought about it / had experience doing it.