Aircrack-ng and D-Link DWL-122

[real_good_bacon]

Thanks for your answer.
Isn't ASPj's driver for RT2570 cards? I did it like it was said at the Aircrack-ng homepage.

[Mister_X]

yes

[pilotsnipes]

Hello Sir!

Okay, i use a slightly modified version of the rt2570 drivers which always have the prism headers enabled. You get them from: http://homepages.tu-darmstadt.de/~p_larbig/wlan/

Seeing as you are the author of the drivers that make the D-Link DWL-G122 work so well under BACKTRACK, I was hoping you wouldn't mind me asking a question here!! I was always getting the "-1" signal strength problem when I was injecting because (apparently) of the prism headers in the drivers that came pre-installed with Backtrack. I have upgraded to your drivers and most things seem to work well - injecting etc etc are perfect and I can get WEP keys fairly easily.

However over on the BACK TRACK fourms an interesting problem has appeared with sending DEAUTH packets with the D-LINK. Here's a snippet from a guy called "bigcat99":

I've tried both of the instructions for the DWL-G122 B1, and when I run the "injection test" I only get malformed packets. I've got the DWL-G122 B1 and here's what I do...

1: after boot is done insert card
2: airmon-ng start
3: airodump-ng rausb0
4: aireplay -0 10 -a 01:02:03:04:05:06 rausb0
5: launch wireshark (ethereal) and look for deauth packets.

This always gives malformed packets.

I've double checked this myself and it certainly does screw up DEAUTH packets. They all appeared malformed.

Then recently he discovered that:

airmon-ng start
iwpriv rausb0 rfprismhdr 0
airodump-ng rausb0
aireplay-ng -0 100 -a 11:22:33:44:55:66 rausb0

Open Wireshark - and OMG there they are - deauth frames

Looking on the driver page - http://homepages.tu-darmstadt.de/~p_larbig/wlan/

Only difference is, that the official one is still doing automatic prism header switching, which is annoying, but can be disabled via an iwpriv command now.

Anyway, hope this helps someone cos its been driving me crazy all day.. I guess that the "rfprismhdr" is set to "1" by default when the driver starts, and that this is causing the hassle ?

I've made a quick video of all of this (under 2mins) which you can see here: http://rapidshare.com/files/5632271/errorheaders.avi  which explains this better than me rambling on. Seeing as you seem to know so much more about these headers than I will ever do, would you have any advice/explaination or even fixes for the drivers to send proper packets.

It seems that as soon as I do the " iwpriv rausb0 rfprismhdr 0 " the signal problem of "-1" starts again .

[ASPj]

While injecting packets and having prism headers enabled, the dirver reports the injected packets back to the system without the prism headers. The system expects prism packets and so it cannot display them correctly.

Nonetheless, the packets are all sent correctly, the driver just doesnt insert the headers to the injected packets. Its a bug, yes, but it doesnt affect any of the attacks.

[pfannkuchen]

Okay, i use a slightly modified version of the rt2570 drivers which always have the prism headers enabled. You get them from: http://homepages.tu-darmstadt.de/~p_larbig/wlan/

is this site still available?

i can´t connect there!

thx.

p.

[mahabad1972]

is this working on windows xp or not i got d link awl 122 c1 is there any driver for it or not

  Aircrack-ng and D-Link DWL-122



Isn't ASPj's driver for RT2570 cards? I did it like it was said at the Aircrack-ng homepage.

« Last Edit: November 14, 2006, 05:41:54 AM by aussi »