NetStumbler (also known as Network Stumbler) is a tool for Windows that facilitates detection of Wireless LANs using the 802.11b, 802.11a and 802.11g WLAN standards. NetStumbler is commonly used for: * Wardriving * Verifying network configurations * Finding locations with poor coverage in one’s WLAN * Detecting causes of wireless interference * Detecting unauthorized (”rogue”) access points * Aiming directional antennas for long-haul WLAN links