Building a Wireless IDS with Open Source
As a security researcher, penetration tester, and all around network security guy, Kismet has always had a special place in my heart when it comes to network security testing tools. When I'm on-site, doing an internal penetration test or network security audit, it is not uncommon to see Kismet running on my laptop. Sometimes it is simply out of general curiosity to see "what's out there", it might also be to determine if a "rogue access point" is operating, or I might be looking for a way to build a "covert channel" (ie - back door) out of the network. It's also possible that I'm just bored, and want to see what is flowing through the air.
I've been a Kismet user for a long time, and it is one of the many "tools" in my "tool box". If you're not familiar with Kismet, check out http://www.kismetwireless.net.
Kismet is basically a passive wireless network/device discovery tool. When Kismet is properly configured, you simply fire it up and it will tell you what wireless devices are in your area (802.11b/a/g/n/DECT)....Read the full article and specs.