[93612] in North American Network Operators' Group
How to pick a Site-Local Scope multi cast address
daemon@ATHENA.MIT.EDU (Dave Raskin)
Fri Dec 8 11:12:17 2006
Date: Fri, 8 Dec 2006 09:54:03 -0600
From: "Dave Raskin" <dave.raskin@rimage.com>
To: <nanog@nanog.org>
Errors-To: owner-nanog@merit.edu
Hello, I have been directed to this list by IANA when I asked the
following question:
I am researching ways of device/machine discovery on the
network. This=20
is similar to the Discovery phase of UPnP devices, which uses the SSDP=20
protocol.
=20
I have researched far enough to know that my best bet for UDP=20
multicast address group is the Site-Local Scope address range of
=20
239.255.000.000-239.255.255.255
=20
SSDP and UPnP protocols use the address 239.255.255.250
=20
My question is this:
=20
How do I pick a group address within this range and not have a
chance of colliding with some other application on the network already
using the group address I just picked?
Do I just randomly pick an address in that range and hope for
the best? I am running on Windows and cannot assume that there is a
MADCAP server available.
Thanks in advance!
Dave Raskin
Rimage Corporation
