Wireshark-bugs: [Wireshark-bugs] [Bug 6543] New: Dissection problem above LAPD *and* Q.931
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Sat, 5 Nov 2011 07:08:44 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6543

           Summary: Dissection problem above LAPD *and* Q.931
           Product: Wireshark
           Version: 1.7.x (Experimental)
          Platform: Other
        OS/Version: Windows 7
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: keithfrench@xxxxxxxxxxxxx


Build Information:
Version 1.7.0-SVN-39724 (SVN Rev 39724 from /trunk)

Copyright 1998-2011 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled (32-bit) with GTK+ 2.22.1, with Cairo 1.10.2, with Pango 1.28.3, with
GLib 2.26.1, with WinPcap (version unknown), with libz 1.2.5, without POSIX
capabilities, with threads support, with SMI 0.4.8, with c-ares 1.7.1, with Lua
5.1, without Python, with GnuTLS 2.10.3, with Gcrypt 1.4.6, with MIT Kerberos,
with GeoIP, with PortAudio V19-devel (built Nov  3 2011), with AirPcap.

Running on 32-bit Windows 7 Service Pack 1, build 7601, with WinPcap version
4.1.2 (packet.dll version 4.1.0.2001), based on libpcap version 1.0 branch
1_0_rel0b (20091008), GnuTLS 2.10.3, Gcrypt 1.4.6, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 21022

Wireshark is Open Source Software released under the GNU General Public
License.

Check the man page and http://www.wireshark.org for more information.
--
The third frame is a Path Replacement Proposal from the TE, the fourth shows as
malformed. It is the NT that is rejecting the PR-P. The NT is actually a
Q.Sig/DPNSS protocol converter. It is rejecting this as the terminating PBX had
tried to initiate PR, but to conform with the DPNSS spec, my converter must
reject this and wait for the DPNSS Route Optimisation Request to come in from
the originating PBX.

Possible dissection problem above LAPD *and* Q.931.

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