May 26, 2018
Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system. Kismet will work with any wireless card which supports raw monitoring rfmon mode, and can sniff 802.11a, 802.11b, and 802.11g traffic.
Kismet identifies networks by passively collecting packets. In addition to standard networks, it can detect and given time, decloak hidden networks, and infer the presence of nonbeaconing networks via data traffic.
Capture sources that are known to be supported Atheros, Prism2, WSP100, Drone, wtapfile, pcapfile. Kismet also supports radiotap headers and should work with current FreeBSD systems.