wpa_supplicant not working with speedport w303 accesspoint

Jouni Malinen j at w1.fi
Mon Mar 2 13:29:33 EST 2009


On Thu, Feb 26, 2009 at 03:46:32PM +0100, Jan Marc Hoffmann wrote:
> I made a second test without the networkmanager interfering and with wpa  
> instead of wpa2. The auth doesnt work. I hope the capture will be more  
> usefull this time. :=)

> wpa_supplicant log:
> http://user.cs.tu-berlin.de/~exelnet/wlan2.txt

> wireshark capture:
> http://user.cs.tu-berlin.de/~exelnet/wpa_capture

Thanks. It looks like the 4-way handshake goes fine without any
problems, but after that, wpa_supplicant does not receive the first
encrypted frame (group key handshake message 1/2). The capture file
shows the encrypted frame, so I would assume that the driver code in the
client dropped it for some reason. One would likely have to debug the
driver/firmware operations to figure out why that happened.

The capture file shows a bit odd TKIP behavior from the AP. It starts
with a large (random looking) TKIP IV even though this would normally
start from zero. In theory, this should work fine, but I have no idea
whether the particular driver you are using could reject such a frame.

-- 
Jouni Malinen                                            PGP id EFC895FA


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