Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 10706] New: A byte is skipped between IPv6 and IPv4 layers

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Bug ID	10706
Summary	A byte is skipped between IPv6 and IPv4 layers
Product	Wireshark
Version	1.12.1
Hardware	x86-64
OS	Windows 7
Status	UNCONFIRMED
Severity	Normal
Priority	Low
Component	Dissection engine (libwireshark)
Assignee	bugzilla-admin@wireshark.org
Reporter	boaz.brickner@gmail.com

Created attachment 13268 [details]
IPv6 IPv4 byte skipped

Build Information:
Version 1.12.1 (v1.12.1-0-g01b65bf from master-1.12)

Copyright 1998-2014 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+ 2.24.23, with Cairo 1.10.2, with Pango 1.34.0, with
GLib 2.38.0, with WinPcap (4_1_3), with libz 1.2.5, with SMI 0.4.8, with c-ares
1.9.1, with Lua 5.2, without Python, with GnuTLS 3.1.22, with Gcrypt 1.6.0,
without Kerberos, with GeoIP, with PortAudio V19-devel (built Sep 16 2014),
with
AirPcap.

Running on 64-bit Windows 7 Service Pack 1, build 7601, with WinPcap version
4.1.3 (packet.dll version 4.1.0.2980), based on libpcap version 1.0 branch
1_0_rel0b (20091008), GnuTLS 3.1.22, Gcrypt 1.6.0, without AirPcap.
        Intel(R) Core(TM) i5-3550 CPU @ 3.30GHz, with 16345MB of physical
memory.


Built using Microsoft Visual C++ 10.0 build 40219

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

Check the man page and http://www.wireshark.org for more information.
--
Discovered while working on Pcap.Net (http://pcapdot.net).

In the attached pcap file, there's a single IPv6 packet with IPv4 as payload.
The IPv6 layer ends at offset 00c9 and the IPv4 layer should start at offset
00ca but Wireshark starts it at offset 00cb.

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