Intel Wifi link 5100 (Lenovo X200T)

[d0gbyt3]

I've been having the same problems with this card in combination with an out-of-the-box install of backtrack 4. Aireplay -9 (test mode) even states that injection is working (I'm not exactly sure at which step in the process the actual injection function is used/needed, but Ive come to seriously doubt that it works). But after finding a fragmented packet to use with Aireplay -5 (fragment attack) it wont receive/find/get any packets it needs to make the 1500byte key stream.

I've tried using my other machine with a different card (Linksys PCI), and it worked like a charm (exact same access point and attack type).

I noticed that the windows version of Aireplay needs a special driver from Wildpackets ( hxxp://www [dot] wildpackets [dot] com/support/downloads/drivers ). Their info page states:
"Intel Centrino
OmniPeek natively supports WLAN adapters that utilize the Centrino 3945 chipset for a/b/g wireless analysis. A custom driver is not needed for these adapters as the application will automatically recognize the adapter. At the present time, the 3945 chipset is only supported on the Windows XP platform. Other Intel chipsets such as the 4965 and 5100 cannot be supported by OmniPeek until Intel adds ISV promiscuous mode to their feature set. It is incumbent upon Intel to make these changes, as OmniPeek already has the ability to recognize and work with chipsets that have this capability."

It seems that Intel hasn't implemented everything that's needed for this software to work (at least on XP). My expertise isn't nearly enough to be sure, but it would seem to be logical that linux drivers could have similar problems with this type of chipset.

If anyone out there has the expertise or experience to comment in any way, it would be much appreciated. This card is driving me crazy!

Grtz

[Mugel]

Same here. Got an 5100 agn - didnt work out of the box. -9 says, it should work, if I use the command -9 mon0 -i wlan0 the last two tests fail.

AP: FritzBox 7050.

Monitor mode works, FakeAuth works.

I installed BT4 on a USB-HDD an replaced (booting with live CD again an just copied) the three .c-files in the directory.

-- Nothing changed... Are there more steps to do? Compile sth.?
I knew much about Computers but I'm not very familiar to Linux at all.

Please help - I made a bet with my brother in law to a case of beer, that I get his WEP-Key.