Wireshark-bugs: [Wireshark-bugs] [Bug 6951] New: Multiprotocol Label Switching Echo - Return Cod
Date: Wed, 14 Mar 2012 10:42:19 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6951

           Summary: Multiprotocol Label Switching Echo - Return Code:
                    Reserved (5)
           Product: Wireshark
           Version: 1.6.5
          Platform: x86-64
        OS/Version: Windows 7
            Status: NEW
          Severity: Minor
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: Francesco.Ruta@xxxxxxxxx


Build Information:
Version 1.6.5 (SVN Rev 40429 from /trunk-1.6)

Copyright 1998-2012 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 (64-bit) with GTK+ 2.22.1, with GLib 2.26.1, with WinPcap (version
unknown), with libz 1.2.5, without POSIX capabilities, without libpcre, without
SMI, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.10.3, with
Gcrypt 1.4.6, without Kerberos, with GeoIP, with PortAudio V19-devel (built Jan
10 2012), with AirPcap.

Running on 64-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.
--
When decoding a MPLS Echo packet, return code 5 is decoded as Reserved (5),
according to RFC4379 5 is "Downstream Mapping Mismatch"




No.     Time        Source                Destination           Protocol Length
Info
     20 2.317962    11.2.0.2              21.0.0.3              MPLS ECHO 74   
 MPLS Echo Reply

Frame 20: 74 bytes on wire (592 bits), 74 bytes captured (592 bits)
Ethernet II, Src: JuniperN_8d:5a:a1 (28:c0:da:8d:5a:a1), Dst: Radisys_4e:49:d6
(00:00:50:4e:49:d6)
Internet Protocol Version 4, Src: 11.2.0.2 (11.2.0.2), Dst: 21.0.0.3 (21.0.0.3)
User Datagram Protocol, Src Port: lsp-ping (3503), Dst Port: lsp-ping (3503)
Multiprotocol Label Switching Echo
    Version: 1
    Global Flags: 0x0000
    Message Type: MPLS Echo Reply (2)
    Reply Mode: Reply via an IPv4/IPv6 UDP packet (2)
    Return Code: Reserved (5)
    Return Subcode: 1
    Sender's Handle: 0x00000005
    Sequence Number: 5
    Timestamp Sent: Mar 14, 2012 00:19:47.954658000 UTC
    Timestamp Received: Mar 14, 2012 08:21:26.000088000 UTC

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