Re: [gentoo-user] Can't Decrypt WEP Packets After Upgrade From 2.6.23 to 2.6.25

[Eric Martin]

Drew Tomlinson wrote:
> Ever since I upgraded my gentoo-sources kernel from 2.6.23 to 2.6.25, I
> can no longer see packets on my wireless network for any device other
> than my own.  The tcpdump output looks like this:
>
> 20:49:32.909144 00:12:bf:2a:2c:76 (oui Unknown) Unknown SSAP 0x10 >
> 00:1f:32:5f:fe:06 (oui Unknown) Unknown DSAP 0xc2 Unnumbered, disc,
> Flags [Final], length 44
> 20:49:32.912775 00:12:bf:2a:2c:76 (oui Unknown) Unknown SSAP 0x10 >
> 00:1f:32:5f:fe:06 (oui Unknown) Unknown DSAP 0xc2 Information, send seq
> 42, rcv seq 0, Flags [Response], length 204
> 20:49:32.916874 00:12:bf:2a:2c:76 (oui Unknown) Unknown SSAP 0x10 >
> 00:1f:32:5f:fe:06 (oui Unknown) Unknown DSAP 0xc2 Supervisory, Receiver
> not Ready, rcv seq 0, Flags [Response], length 169
> 20:49:32.976738 00:12:bf:2a:2c:76 (oui Unknown) Unknown SSAP 0x10 >
> 00:1f:32:5f:fe:06 (oui Unknown) Unknown DSAP 0xc2 Information, send seq
> 43, rcv seq 0, Flags [Response], length 64
> 20:49:33.047570 00:12:bf:2a:2c:76 (oui Unknown) > 00:1f:32:5f:fe:06 (oui
> Unknown), ethertype Unknown (0x05ec), length 1530:
>    0x0000:  c211 5700 c393 1b7b 838f 366c 27c5 f97a  ..W....{..6l'..z
>    0x0010:  5111 7d1a 1e33 bebd a432 ff30 5a35 e0ad  Q.}..3...2.0Z5..
>    0x0020:  ba16 2b31 f1e9 d905 5967 f333 d3a1 4ba3  ..+1....Yg.3..K.
>    0x0030:  1e32 0f18 fcc2
>
> I've Googled for an answer and think that my problem is that I am unable
> to decrypt WEP packets for any device other than my own.  This is a
> simple 64 bit WEP network in my home.  Unfortunately I did not find
> anything that applied to my situation.
>
> One thing different about my new kernel config is that because I have a
> Broadcom card, I moved to the new b43 driver instead of the old
> b43_legacy driver.  I am using version 4 firmware however I had the same
> problem with version 3 firmware.  I was hoping that would fix it but no
> luck.
>
> I am also using the new MAC80211 stack instead of the older IEEE80211
> stack.
>
I don't have much help to offer than go with WPA over WEP (especially 
WEP64).  A guy at my LUG gave a presentation on hacking WEP and did it 
in under 1 minute.  I went home that night and got WPA to work.
> Any ideas on what I have done wrong?
Yes, turning on wep vs WPA ;)

>
> Thanks,
>
> Drew
>
Sorry the only answer is do it totally differently but nobody else 
replied so I figured I'd chime in.

-- 
Eric Martin
PGP fingerprint = D1C4 086E DBB5 C18E 6FDA  B215 6A25 7174 A941 3B9F