It's not uncommon to miss messages when trying to capture Wifi, but 90% loss
seems way high.
Cheers, Bob
Eugene, OR - Tucson, AZ
-----Original Message-----
From: wireshark-users-bounces@xxxxxxxxxxxxx
[mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Matt Roberts
Sent: Wednesday, January 07, 2009 9:34 PM
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] Unable to decode WPA2
Well I changed the password to something else and I suddenly got it to
decrypt, although it was missing a lot of TCP data (about 90% of it). I
don't know if this is a problem with my driver, with my pc being too slow,
or my router or my wireless card or wireshark.. There are too many things
that could go wrong and I think I will wait for my wireless to be officially
supported on Ubuntu before going further (I use the WUSB600N and the RT2870
drivers).
Thanks to everyone who answered!
Matt.
--------------------------------------------------
From: "Matt Roberts" <k141@xxxxxxxxxxx>
Sent: Wednesday, January 07, 2009 7:52 AM
To: "Community support list for Wireshark" <wireshark-users@xxxxxxxxxxxxx>
Subject: Re: [Wireshark-users] Unable to decode WPA2
> Hi,
>
> thanks for your reply.
>
> Yes I have the 4 EAPOL entries, but now what do I do with them? I'm not
> sure
> what key to use from the entries I see?
>
> Thanks,
>
> Matt.
>
> --------------------------------------------------
> From: "Soh Kam Yung" <sohkamyung@xxxxxxxxx>
> Sent: Tuesday, January 06, 2009 4:44 PM
> To: "Community support list for Wireshark" <wireshark-users@xxxxxxxxxxxxx>
> Subject: Re: [Wireshark-users] Unable to decode WPA2
>
>> On Tue, Jan 6, 2009 at 3:01 AM, Matt Roberts <k141@xxxxxxxxxxx> wrote:
>>> Hello all,
>>>
>>> I have spent countless hours trying to decode my own traffic using WPA2
>>> and
>>> I need some help.
>>>
>>> My WPA2-PSK passphrase is "testpass". This is what I enter on my router
>>> configuration and my PC. I can connect to the internet no problem.
>>> My SSID is "globul".
>>>
>>> When I sniff the traffic I see the 4 EAPOL entries. I can't figure out
>>> what
>>> to put in the wireshark 802.11 preference. I tried:
>>>
>>> wpa-pwd:testpass:globul
>>>
>>> That didn't decrypt anything.
>>> [...]
>>
>> Did you capture the initial (EAPOL) 4-Way Pairwise handshake, which
>> usually happens immediately after you have associated with the
>> network?
>>
>> That handshake contains additional information required to decode the
>> WPA2-PSK encrypted traffic.
>>
>> The passphrase alone is not enough to decode WPA2-PSK traffic (which
>> is why WPA2 is more secure than WEP).
>>
>> Regards,
>> Kam-Yung
>> --
>> Soh Kam Yung
>> my Google Reader Shared links:
>> (http://www.google.com/reader/shared/16851815156817689753)
>> my Google Reader Shared SFAS links:
>>
(http://www.google.com/reader/shared/user/16851815156817689753/label/sfas)
>>
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>
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