Wireshark-bugs: [Wireshark-bugs] [Bug 7414] New: PMIPV6 support over IPV4 network
Date: Wed, 27 Jun 2012 02:05:06 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7414

           Summary: PMIPV6 support over IPV4 network
           Product: Wireshark
           Version: SVN
          Platform: x86
        OS/Version: Windows 7
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Dissection engine (libwireshark)
        AssignedTo: [email protected]
        ReportedBy: [email protected]


Created attachment 8687
  --> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=8687
This is the diff file corresponding to the patch

Build Information:
Version 1.9.0-withmipv6overipv4 (SVN Rev Unknown from unknown)

Copyright 1998-2012 Gerald Combs <[email protected]> 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+ 2.24.10, with Cairo 1.10.2, with Pango 1.30.0, with
GLib 2.32.2, with WinPcap (4_1_2), with libz 1.2.5, without POSIX capabilities,
with SMI 0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS
2.12.18, with Gcrypt 1.4.6, with MIT Kerberos, with GeoIP, with PortAudio
V19-devel (built Jun 25 2012), with AirPcap.

Running on 64-bit Windows 7, build 7600, 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 2.12.18, Gcrypt 1.4.6, without AirPcap.

Built using Microsoft Visual C++ 10.0 build 30319
--
PMIPv6 is an extension of MIPv6, adding a certain number of options to the
MIPv6 protocol. These options are already implemented in the wireshark
dissector, and the MIPv6 headers are recognized, but only inside IPv6 packets.

However, RFC5844 extends the PMIPv6 protocol to make it work over IPv4 networks
: as explained in section 4 of this RFC, the MIPv6 message is carried inside an
IPv4 packet with a UDP header. The port number in the UDP header is 5436
(already designated in wireshark as "pmip6-cntl").

Currently, wireshark does not recognize MIPv6 headers inside IPv4 packets. This
patch solves the issue by registering the MIPv6 header for the udp port 5436.

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