Here's an article discussing WLAN monitoring technology.
Over the last few months,
AirMagnet is the second company (the first is
Wibhu Technologies - I came across them in January 2004) I have come across that has a hardware & software based solution to deal with monitoring of Wireless LAN networks as well as offer security. These systems mostly work by monitoring the airwaves in a range of frequencies at a customer's site using a group of sensors scattered around the facility. The true winner of this market space will be the company that is selected by the most number of WLAN vendors that sell to corporations to be included in their standard access-points and wireless bridges.
