Wireshark-users: Re: [Wireshark-users] HTTP Filter for 401 response
From: Steve Crowl <stevenc@xxxxxxxxxxxxx>
Date: Mon, 24 Sep 2007 15:18:00 -0500
Will do. Thanks for the speedy response and workaround.
Steve

Sake Blok wrote:
Steve,
 
Wireshark is unable to reassemble these packets it seems. If you disable "Allow subdissector to reassemble TCP streams" in the tcp protocol preferences, the HTTP-401 is indeed shown. This allows you to filter on http or http.response.code==401 as a workaround.
 
Could you file this as a bug on http://bugzilla.wireshark.org, mentioning that http-reassembly does not work correctly in this case and attach the tracefile to the bug?
 
Thanks, Cheers,
 
 
Sake
----- Original Message -----
Sent: Monday, September 24, 2007 8:33 PM
Subject: Re: [Wireshark-users] HTTP Filter for 401 response

Hi Sake. Yes, I can see HTTP/1.1 200 OK messages for example. The attached capture file contains the 401. All boxes are checked for HTTP preferences with Alternate TCP port = 0; all boxes checked for TCP except Try heuristic sub-dissector first.
Thanks,
Steve

Sake Blok wrote:
Hi Steve,

Does it show other http responses as HTTP? If so, could you send in a little 
capture file (just the tcp stream containing the 401) that shows this 
behaviour? If not, what are your settings in the tcp and http protocol 
preferences?

Cheers,


Sake
----- Original Message ----- 
From: <stevenc@xxxxxxxxxxxxx>
To: <wireshark-users@xxxxxxxxxxxxx>
Sent: Monday, September 24, 2007 5:57 PM
Subject: [Wireshark-users] HTTP Filter for 401 response


  
I have version 0.99.6a installed on WinXpSP2. The default installation of
wireshark does not display the HTTP 401 Authorization Required using the
HTTP filter; it is labeled TCP. Do I need to change a preference or some
other setting so that HTTP filter includes the 401?
Thanks,
Steve

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