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My name is Mike, and this blog is my way of saving people time. If someone has a specific problem that I've encountered before, hopefully these posts will save them the extraneous Googling I had to go through to solve the same problem. Also, when I have something to say about technology today, I will post my thoughts here. If this blog has helped you out, even a little bit, vote on the poll below, or let me know by sending me an email. I'm always open to exchanging links with other blogs or websites that share a similar interest.

Sunday, August 10, 2008

D-Link DWA-643 ExpressCard and MadWifi, Aircrack-ng

I have just purchased a D-Link DWA-643 Xtreme N Wireless Notebook ExpressCard, which uses the Atheros AR5418 chipset. It was one of very few ExpressCard wireless cards that support monitor mode and packet injection.

After some work, I successfully installed the card on Linux Mint 5, with the madwifi-trunk 02 Aug 2008 driver. I also installed aircrack-ng-1.0-rc for card testing purposes. The card did not work with madwifi-0.9.4 drivers. The kernel version I am running is 2.6.24-16-generic.

Once the installation instructions from the MadWifi website were followed, I was able to complete a simple WEP crack tutorial from the Aircrack-ng website on my own home wireless router. Master mode has not been tested as of yet.

I have had intermittent problems with the card not being recognized, by Linux or Windows XP. After several reboots, the card has apparently started working again. The internal Intel wireless on my laptop does not play well with the new wireless card, so I must run one while the other is disabled or unplugged. The activity LED on the D-Link card does not blink under Linux, but does blink under Windows XP. The card protrudes 3.5 cm from my particular laptop when it is fully inserted.

If you are looking to purchase an ExpressCard wireless card capable of monitor mode and packet injection, I would recommend this card, though I haven't used it extensively. It is listed under TuxMobil's ExpressCard Hardware Compatibility List.

EDIT: To get the madwifi-trunk drivers I used type the following command at the terminal:

svn co -r3837 http://svn.madwifi-project.org/madwifi/trunk

9 comments:

Julien Bayle said...

just bought this atheros-based card.
impossible to find the 5th august 2008 madwifi version :(

here last fedora 10 kernel

help would be appreciated :)

Mikazo said...

My apologies, but I've searched both the internet and my data backup DVDs for the drivers and could not find them. However, I do believe a newer version of the madwifi drivers should suffice if configured properly. See http://madwifi-project.org/wiki/UserDocs/GettingMadwifi#RedHatEnterpriseLinuxFedora for more information. Hope this helps.

Thomas said...

Hi,

Could you tell us if you can turn the master mode on?

does "iwconfig wlan0 mode master" work?

Mikazo said...

The card does work in monitor mode, but I forget the exact syntax on how to do it. Googling for iwconfig tutorial should produce some results. The card does pass Aircrack-ng's injection test.

http://www.aircrack-ng.org/doku.php?id=injection_test

enrique said...

Hi Mikazo I need your help , I have this card but i dont know how make work on wifislax .. can U help me please..im new in the world of wireless.. and sorry my inglish ...


hola Mikazo necesito tu ayuda por favor tengo la atrjeta DWA-643 pero no puedo hacerla funcionar con wifislax... podrias ayudarme .. soy novato en auditorias wireless.. y estoy un muy perdido.. de antemano muchas gracias.

Mikazo said...

Tal vez estas páginas te ayudarán a empezar:

http://www.nextgameday.com/foro/f105/tutorial-auditoria-wireless-wifislax-saca-claves-wep-de-redes-inalambricas-56761/


http://foro.seguridadwireless.net/nueva-generacion-wireless/adaptador-d-link-dwa-643/?PHPSESSID=9e682acc167587dc54342912dbe4773a

mendel said...

hi mikazo,
ive been doing some research as to the possibility of injecting packets through windows -do you know anything about this?
b/c i downloaded a torrent package all set up to do just that(mainly commview) but before i start i need the right adapter. now in this package there was all this driver software, thing is i have a new lptp which only takes expresscard so my trail led me to this model. is it possible for me to download driver software for this piece & it will work with commview?
thanx 4 the time

p.s.if you want the torrent package ill gladly send it to you

mendel said...

also, does it make a diff. if its recieving from a PRE-N or DRAFT-N router?

Mikazo said...

mendel, as far as I can tell, CommView is similar to Wireshark, which is an open source packet analyer/network sniffer. What you'd be looking for to crack wireless is aircrack-ng or something similar. Check out their Windows tutorial

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