Wireshark-bugs: [Wireshark-bugs] [Bug 1680] Error in TCP Sequence number analysis

Date: Wed, 18 Jul 2007 08:32:43 +0000 (GMT)
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1680





------- Comment #2 from c.koenning@xxxxxx  2007-07-18 08:32 GMT -------
(In reply to comment #0)
> Build Information:
> Version 0.99.5 (SVN Rev 20677)
> 
> Compiled with GTK+ 2.10.7, with GLib 2.12.7, with WinPcap (version unknown),
> with libz 1.2.3, with libpcre 6.4, with Net-SNMP 5.4, with ADNS, with Lua 5.1,
> with GnuTLS 1.6.1, with Gcrypt 1.2.3, with MIT Kerberos, with PortAudio
> PortAudio V19-devel, with AirPcap.
> 
> Running on Windows XP Service Pack 2, build 2600, with WinPcap version 4.0
> (packet.dll version 4.0.0.755), based on libpcap version 0.9.5, without
> AirPcap.
> 
> Built using Microsoft Visual C++ 6.0 build 8804
> --
> The tcp sequence number analysis marks TCP sequences as possible retransmission
> or suspects lost fragments when the last connection was not closed properly by
> a 4 way handshake but closed by a oneside FIN and RST.
> 
> This is a bit confusion when analysing a lot of data.
> 
> 
> As you can see in frame 18 the sequence number analysis results in 
> [A segment before this frame was lost]
> 
> And also in frame 22 sequence number analysis results in 
>  [TCP Analysis Flags]
>             [This frame is a (suspected) retransmission]
>             [The RTO for this segment was: 15.817093000 seconds]
>             [RTO based on delta from frame: 14]
> 
> Best regards,
> 
> Christian Koenning
> 
> atached the trace in TXT format.
> 

Is anybody alive on the wireshark dev group?

Tnx,

Christian


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