Wireshark-bugs: [Wireshark-bugs] [Bug 1206] New: MEGACO message cannot be decoded correctly for
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Mon, 6 Nov 2006 10:13:53 +0000 (GMT)
http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1206

           Summary: MEGACO message cannot be decoded correctly for
                    ServiceChange Command
           Product: Wireshark
           Version: 0.99.4
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: Medium
         Component: TShark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: pubate.satienpoch@xxxxxxxxx


Build Information:
Version 0.99.4 (SVN Rev 19757)

Copyright 1998-2006 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+ 2.6.9, with GLib 2.6.6, with WinPcap (version unknown), with
libz 1.2.3, with libpcre 6.4, with Net-SNMP 5.3.1, with ADNS, with Lua 5.1,
with
GnuTLS 1.5.1, with Gcrypt 1.2.3, with MIT Kerberos, with PortAudio <= V18, with
AirPcap.

Running on Windows XP Service Pack 2, build 2600, with WinPcap version 3.1
(packet.dll version 3, 1, 0, 27), based on libpcap version 0.9[.x], without
AirPcap.

Built using Microsoft Visual C++ 6.0 build 8804

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 wireshark cannot decode the H248 message correctly. The ServieChangeProfile
and ServiceChangeReason under the ServiceChangeParameter of the
ServiceChangeCommand cannot be decoded correctly.

The decoded message in the middle windows says :

serviceChangeProfile
BER Error: Wrong field in sequence  expected class:0 (UNIVERSAL)
tag:22(IA5String) but found class:2(CONTEXT) tag:0"
serviceChangeReason: 1 item
Item: 160F39303120436F6C6420426F6F745C30

However, the related raw data in the bottom window is :

                         80 11 6e 6f 6b 69 61 6d 67 77  ........nokiamgw
0090   70 72 6f 66 69 6c 65 2f 32 a4 13 04 11 16 0f 39  profile/2......9
00a0   30 31 20 43 6f 6c 64 20 42 6f 6f 74 5c 30        01 Cold Boot\0.


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