Wireshark-dev: Re: [Wireshark-dev] New dissector proposed: WakeOnLAN
From: "Maynard, Chris" <[email protected]>
Date: Tue, 6 Nov 2007 15:49:38 -0500
I think it's fine to add the Wake on LAN entries to etypes.h, etc., but
just be aware that 0x0842 is not actually a registered ethertype (*yet*)
with IANA (Refer to: http://www.iana.org/assignments/ethernet-numbers).
0x0842 is only what ether-wake uses for WOL traffic, but technically WOL
is not dependent upon anything but specific byte sequences in the
Ethernet frame's payload - at least in theory.  In reality of course, it
makes practical sense to assign a specific ethertype, or udp port
number, or ..., but there are no guarantees.  That said, I seriously
doubt that there'll be a conflict with 0x0842 any time soon (as in my
lifetime), but you never know, so I guess it's just something to keep in
mind ...

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Stephen Fisher
Sent: Tuesday, November 06, 2007 12:33 AM
To: Developer support list for Wireshark
Subject: Re: [Wireshark-dev] New dissector proposed: WakeOnLAN

On Tue, Oct 30, 2007 at 02:12:10PM -0400, Maynard, Chris wrote:

> I'm submitting a new dissector for consideration in being included
> with Wireshark.  It is for the WakeOnLAN.  I compiled and tested it on
> both Windows XP and Fedora Core 6 running Linux 2.6.11-1.1369_FC4.

I have committed your new dissector as SVN revision 23371.  I added
entries to epan/etypes.h and epan/dissectors/packet-ethertype.c for Wake
on LAN and used the #define from the first file instead of 0x0842 in the
actual dissector file.  The visible part of these changes allows the
Ethertype to show a value of "Wake on LAN" in the Ethernet dissector.

Thanks for your contribution!  I meant to make a Wake on LAN dissector a
while back, but never got around to it :).

> I added a wiki page for it already and included a sample capture file
> as well (See http://wiki.wireshark.org/WakeOnLAN). 

Looks great.  Thanks!


Steve
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