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Packet Injection


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For RTL8187 - Install Madwifi

For AR5001 - Install ATH5K

I've been using backtrack 4 final for some time now and packet injection works just fine with my rtl8187 and my Athros card in my Asus 900A eee. I wanted to use aircrack-ng and its acompaning tools on ubuntu netbook remix 10.04. But I'm getting error messages.

I installed the drivers from the backtrack repository and it didn't help. I've been trying to get this to work for some time now with no luck. Interestingly it works find on Linux Mint 8.

Is it the kernel version?

Anyway here is the error I get when running

Interface    Chipset        Driver

wlan0        RTL8187     rtl8187 - [phy0]

nettrack@Net-Track:~$ sudo airodump-ng wlan0
ioctl(SIOCSIWMODE) failed: Device or resource busy

ARP linktype is set to 1 (Ethernet) - expected ARPHRD_IEEE80211,
ARPHRD_IEEE80211_FULL or ARPHRD_IEEE80211_PRISM instead.  Make
sure RFMON is enabled: run 'airmon-ng start wlan0 <#>'
Sysfs injection support was not found either.


It turns out the network manager caused all the problems.

I disabled it and it all works great now


Only my RTL8187 shows up in the list, my atheros card does not.


EDIT- Again

Ok, Ive installed madwifi manually and now my wireless card shows up as




If i run airodump-ng wifi0

nothing happens when airodump loads, it dosnt even show elapsed time.

using ath0 gives me the same old errors.

I solved it, needed to install Ath5K drivers for that card.

Edited by acer5050
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