Wireshark-bugs: [Wireshark-bugs] [Bug 4822] New: WTP+WSP packets incorrectly dissected as Founda
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 1 Jun 2010 13:25:11 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4822

           Summary: WTP+WSP packets incorrectly dissected as Foundation
                    FieldBus packets
           Product: Wireshark
           Version: SVN
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: tyson.key@xxxxxxxxx


Created an attachment (id=4722)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4722)
A bunch of WTP+WSP packets that are incorrectly dissected

Build Information:
Version 1.3.6-SVN-33031 (SVN Rev 33031 from /trunk)

Copyright 1998-2010 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 with GTK+ 2.16.6, (32-bit) with GLib 2.22.4, with WinPcap (version
unknown), with libz 1.2.3, without POSIX capabilities, without libpcre, with
SMI
0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with
Gcrypt 1.4.5, with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built
Jun
 1 2010), with AirPcap, with new_packet_list.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.1
(packet.dll version 4.1.0.1753), based on libpcap version 1.0 branch 1_0_rel0b
(20091008), GnuTLS 2.8.5, Gcrypt 1.4.5, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 30729

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

Check the man page and http://www.wireshark.org for more information.
--
I'm unsure if there's a heuristic to determine whether or not traffic bound for
UDP port 9201 is either Foundation FieldBus, WTP+WSP or something else,
although it appears that the packets in the attached capture file are being
incorrectly dissected as Foundation FieldBus by default. (Of course, faffing
with "Decode As.." will yield a usable result, although that's suboptimal in
the long term).

Thanks.

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