Wireshark-bugs: [Wireshark-bugs] [Bug 12124] New: Default decoding of MPLS
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Mon, 15 Feb 2016 11:38:50 +0000
Bug ID 12124
Summary Default decoding of MPLS
Product Wireshark
Version 2.0.1
Hardware x86-64
OS All
Status UNCONFIRMED
Severity Major
Priority Low
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter branislav.makan1994@gmail.com 

Created attachment 14328 [details]
Pcap sample containing packet with described problem.

Build Information:
Version 2.0.2 (v2.0.2rc0-142-ga53c401 from unknown)

Copyright 1998-2016 Gerald Combs <gerald@wireshark.org> and contributors.
License GPLv2+: GNU GPL version 2 or later
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
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 (64-bit) with GTK+ 3.12.2, with Cairo 1.14.0, with Pango 1.36.8, with
libpcap, without POSIX capabilities, without libnl, with libz 1.2.3, with GLib
2.44.1, without SMI, without c-ares, without ADNS, without Lua, without GnuTLS,
without Gcrypt, with MIT Kerberos, without GeoIP, with PortAudio V19-devel
(built Feb 10 2016 12:30:10), without AirPcap.

Running on Linux 2.6.32-220.7.1.el6.x86_64, with locale en_US.UTF-8, with
libpcap version 1.7.2, with libz 1.2.3.
Intel(R) Xeon(R) CPU           X3440  @ 2.53GHz (with SSE4.2)

Built using gcc 4.4.7 20120313 (Red Hat 4.4.7-11).

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

Check the man page and http://www.wireshark.org for more information.
--
Related to: https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11949

With the change of default decoding of MLPS payload in Wireshark 2.0.x we're
having troubles decoding the payload. This can be resolved in Wireshark by
setting the default dissector but the same doesn't work for tshark which many
internal tests rely upon.

Dissection worked correctly in 1.12.x version we were using before.

I am attaching packet sample.

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