WLAN Networks.
Openap http://www.devicescape.com/opensource
Sputnic http://www.sputnik.com
WAP / SMS Gateway.
Kannel http://www.kannel.org
WLAN Wardriving Tools
Istumbler http://www.istumbler.net
Packetyzer http://www.networkchemistry.com
Airtraf http://airtraf.sourceforge.net
WLAN Analyzers
Kismet http://www.kismetwireless.net
Kismac http://kismac.de
Wavestumbler http://www.cqure.net
Aircrack http://www.aircrack-ng.org
Airsnort http://airsnort.shmoo.com
Tetheral http://www.ethereal.com
Ethereal http://www.ethereal.com
WLAN Security Solution
Open1x http://ivoras.sharanet.org
Wpa-supplicant http://hostap.epitest.fi
Signal Strength Measurment
Wavemon http://www.janmorgenstern.de