root@bt:~# airmon-ng start wlan0


Interface Chipset Driver

wlan0 AR9001U ar9170usb - [phy1]
(monitor mode enabled on mon0)

root@bt:~# ./wpscan.py -i mon0
WARNING: No route found for IPv6 destination :: (no default route?)
this is my problem ,why it is stuck there !Can anybody help me ,i have googled ,but no result .