a minor observation on my behalf using the Alfa AWUS036NH in BT5, VirtualBox under Windows 7 or LinuxMint...
have the same issues as others here while airodump-ng mon0.... occasionally I am able to see expected mon0 output after rebooting a few times. no one particular settng seems to work all the time...
however, while testing and not getting the results i expected after several retries, i got curious and initiated airbase-ng --essid whatever -a aa:aa:aa:aa:aa:aa mon0, then I tried airodump-ng mon0 and got results... I alt-c each terminal instance to quit.. went back and tried airodump-ng mon0 and still nothing... don't know if anyone can use this to troubleshoot issue...
so i l closed out BT5 and went back to LinuxMint and opened terminal and initiated airmon-ng start wlan1, then airodump-ng mon0 and got expected results every time. ... closed all terminal instances and started BT5 and tried it again to no avail.
soooo, can't run successfully on BT5 more than 20% of the time, but it does work fine in LinuxMint 100% of time.
hope this helps.
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okay. so i decided to mess around a little more with this issues and trying whatever i can to make the Alfa card work in BT5 R1. i decided to write a very simple script which i saved to /usr/local/bin , named powerset. chmod a+x powerset to make it executable.
i attempted to initiate several things like iw reg set, and txpower and macchanger from the jump start... after several tries i came up with this simple testing solution:
For linuxmint:
i didn't bother with macchanger in linuxmint obviously#!/bin/bash
iw reg set NZ
ifconfig eth1 down
ifconfig wlan1 down
iwconfig eth1 txpower 30
iwconfig wlan1 txpower 30
ifconfig eth1 up
ifconfig wlan1 up
airmon-ng start wlan1
ifconfig mon0 down
ifconfig mon0 txpower 30
ifconfig mon0 up
airodump-ng mon0
in BackTrack 5 R1, using VirtualBox i did this;
i receive no errors in either linuxmint or bactrack5. for now it seems i am able to reboot, shutdown and then restart backtrack 5 r1 and successfully do an airodump-ng mon0. i did not unplug the alfa card at all each time i used terminal to run my 'powerset" script. if anyone has a more appropriate solution for this alfa card issue, or a better script please let me/us know. i would truly appreciate your input. thank you.#!/bin/bash
iw reg set NZ
ifconfig wlan0 down
iwconfig wlan0 txpower 30
macchanger -m xx:xx:xx:xx:xx:xx wlan0
ifconfig wlan0 up
airmon-ng start wlan0
ifconfig mon0 down
ifconfig mon0 txpower 30
macchanger -m xx:xx:xx:xx:xx:xx mon0
ifconfig mon0 up
airodump-ng mon0



