Common options:

      -a <amode> : force attack mode (1/WEP, 2/WPA-PSK)
      -e <essid> : target selection: network identifier
      -b <bssid> : target selection: access point's MAC
      -p <nbcpu> : SMP support: # of processes to start
      -q         : enable quiet mode (no status output)
      -w <words> : path to a dictionary file

  Static WEP cracking options:

      -c         : search alpha-numeric characters only
      -t         : search binary coded decimal chr only
      -d <start> : debug - specify beginning of the key
      -m <maddr> : MAC address to filter usable packets
      -n <nbits> : WEP key length: 64 / 128 / 152 / 256
      -i <index> : WEP key index (1 to 4), default: any
      -f <fudge> : bruteforce fudge factor,  default: 2
      -k <korek> : disable one attack method  (1 to 17)
      -x         : do bruteforce the  last two keybytes
      -y         : experimental  single bruteforce mode