NetStumbler free software for windows that allows you to detect Wireless Local Area Networks (WLANs) using 802.11b, 802.11a and 802.11g. You can use it to verify that your network is set up the way you intended, find locations with poor coverage in your WLAN, and detect other networks that might be causing interference with your network, etc.
The program is commonly used for:
- Verifying network configurations
- Finding locations with poor coverage in a WLAN
- Detecting causes of wireless interference
- Detecting unauthorized (“rogue”) access points
- Aiming directional antennas for long-haul WLAN links