Wireshark-bugs: [Wireshark-bugs] [Bug 5907] New: New dissector for EIA-852 protocol (Component N
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Thu, 12 May 2011 01:31:50 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5907

           Summary: New dissector for EIA-852 protocol (Component Network
                    over IP)
           Product: Wireshark
           Version: SVN
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: Major
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: daniel@xxxxxxxxxxxxxxxxxxxx


Build Information:
SVN is r37069 (used git-svn, so info below is wrong)

alphaone@adrastea ~/scm/wireshark $
LD_LIBRARY_PATH=/home/alphaone/local/wireshark/lib/
/home/alphaone/local/wireshark/bin/tshark -v
TShark 1.5.2 (SVN Rev Unknown from unknown)

Copyright 1998-2011 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 GLib 2.28.6, with libpcap 1.1.1, with libz 1.2.5, with
POSIX capabilities (Linux), without libpcre, without SMI, without c-ares,
without ADNS, with Lua 5.1, without Python, with GnuTLS 2.10.5, with Gcrypt
1.4.6, without Kerberos, without GeoIP.

Running on Linux 2.6.38.1, with libpcap version 1.1.1, with libz 1.2.5.

Built using gcc 4.4.5.
--
Attached is a dissector for CN/IP protocol described in EIA-852. It is mainly
used to encapsulate and send Lontalk (EIA-709.1) or EIA-600 frames over UDP (or
TCP).

A word of warning: I do not have access to EIA-852 frames other than the ones I
generated myself. My main interest it in the Lontalk frames they contain.
Bug #2252 should have real traces
(http://bugs.wireshark.org/bugzilla/attachment.cgi?id=1463), but is marked
private so I could not test.

This dissector can only decode the common header and data frames can be decoded
by further dissectors.

If someone could provide real traces I would be willing to look at them and
implement the other packet types as well.

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