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Kismet is an 802.11 layer2 wireless network detector, sniffer, and intrusion detection system. All of the internal AirPort hardware is supported as well.Īn awesome table comparing many of the tools mentioned in this post is available here USB Prism2 is supported as well, and USB Ralink support is in development. KisMAC supports several third party PCMCIA cards – Orinoco, PrismII, Cisco Aironet, Atheros and PrismGT.

It has an advantage over MacStumbler/iStumbler/NetStumbler in that it uses monitor mode and passive scanning. KisMAC is an opensource and free stumbler/scanner application for Mac OS X. IStumbler is the leading wireless discovery tool for Mac OS X, providing plugins for finding AirPort networks, Bluetooth devices, and Bonjour services with your Mac. This implementation also prevents MacStumbler from detecting wireless stations or hidden networks because they don’t respond to probe requests. MacStumbler works like NetStumbler and relies on responses to probe requests to discover access points. MacStumbler doesn’t currently support any kind of PCMCIA or USB wireless device. MacStumbler requires an Apple Airport Card and MacOS 10.1 or greater. Additionally, MacStumbler can be used for “wardriving”, which involves co-ordinating with a GPS unit while traveling around to help produce a map of all access points in a given area. It is mainly designed to be a tool to help find access points while traveling, or to diagnose wireless network problems. MacStumbler is a utility to display information about nearby 802.11b and 802.11g wireless access points. Access points are detected by recording which ones respond to probe requests, which also means it can not detect wireless stations since they don’t respond to probe requests. NetStumbler does not detect wireless stations.Normally, this isn’t a big deal but this means in a 100% no wireless zone NetStumbler can be detected. It uses Active Scanning and sends out a probe request about once a second, and reports the responses. The software doesn’t officially work on Windows Vista (or Mac).Still, there are some limitations to NetStumbler that detract from its usefulness. In addition to the freely downloadble software, NetStumbler has an online forum that contains thousands of archived posts and provides a way to get help with questions and share tips and tricks related to NetStumbler. Aiming directional antennas for long-haul WLAN links.Detecting unauthorized (”rogue”) access points.Detecting causes of wireless interference.