Wireshark-bugs: [Wireshark-bugs] [Bug 9995] New: IPv6 Next Header 0x3d recognized as SHIM6
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Tue, 15 Apr 2014 17:30:08 +0000
Bug ID 9995
Summary IPv6 Next Header 0x3d recognized as SHIM6
Classification Unclassified
Product Wireshark
Version 1.6.6
Hardware x86-64
OS Windows 7
Status UNCONFIRMED
Severity Normal
Priority Low
Component Wireshark
Assignee bugzilla-admin@wireshark.org
Reporter boaz.brickner@gmail.com 

Created attachment 12698 [details]
Example IPv6 packet with next header 0x3d recognized as SHIM6

Build Information:
Version 1.6.6 (SVNRev 41803 from /trunk-1.6)

Copyright 1998-2012 Gerald Combs <gerald@wireshark.org> 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 2.12.18, with
Gcrypt 1.4.6, without Kerberos, with GeoIP, with PortAudio V19-devel (built Mar
27 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 2.12.18, 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.
--
While working on IPv6 support in Pcap.Net (http://pcapdot.net), I've found the
following:

In IANA and RFC 5533, IPv6 Next Header 140 (0x8c) is set to SHIM6 protocol.
http://www.iana.org/assignments/ipv6-parameters/ipv6-parameters.xhtml
http://tools.ietf.org/html/rfc5533#section-17

However, in Wireshark 1.6.6, it seems that a packet with Next Header 0x3d is
recognized as SHIM6.

See attached PCAP file for an example.

Thanks,

Boaz.

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