Need Help figuring out airmon.ng and airodump.ng commands
 

For learning purpose I am trying to figure out how to use aircrack and reaver to crack WiFi Passwords. I have all the software ( as far as I know) that i need and I'm on the last step. At the moment im dealing with the commands:

airmon-ng

&

airodump-ng

first I start by doing this:

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root@grant-HP-Pavilion-dv5-Notebook-PC:~# airmon-ng


Interface Chipset Driver

wls5 Atheros ath9k - [phy0]
mon0 Atheros ath9k - [phy0]

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when I do the command airmon-ng start wls5 this is what happens:


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root@grant-HP-Pavilion-dv5-Notebook-PC:~# airmon-ng start wls5


Found 5 processes that could cause trouble.
If airodump-ng, aireplay-ng or airtun-ng stops working after
a short period of time, you may want to kill (some of) them!

PID Name
748 NetworkManager
779 avahi-daemon
830 avahi-daemon
866 wpa_supplicant
31112 dhclient
Process with PID 31112 (dhclient) is running on interface wls5


Interface Chipset Driver

wls5 Atheros ath9k - [phy0]SIOCSIFFLAGS: Name not unique on network

(monitor mode enabled on mon2)
mon0 Atheros ath9k - [phy0]
mon1 Atheros ath9k - [phy0]

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then when I use the next command airodump-ng mon0 I get this:

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root@grant-HP-Pavilion-dv5-Notebook-PC:~# airodump-ng mon0
ioctl(SIOCSIFFLAGS) failed: Name not unique on network

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please help I havent a clue what I'm doing wrong.