[Openais] Why to avoid 224.x.x.x series of IP address for multicast

Hegde, Ramesh (OpenCall) rameshh at hp.com
Tue Aug 12 22:39:25 PDT 2008


Hello ,

In the man page description regarding multicast address I find that,
"This is the multicast address used by openais executive. The default should work for most networks, but the network administrator should be queried about a multicast address to use. Avoid 224.x.x.x because this is a "config" multicast address "

Could you please elaborate on the following sentence 'Avoid 224.x.x.x because this is a "config" multicast address'?

My understanding is that the 224.0.0.0 to 224.0.0.255 range is assigned for multicasting on the local LAN only.  If it because all these addresses are already reserved ? I see some details on this in the following link
http://www.iana.org/assignments/multicast-addresses

Let me know the details.

Regards
Ramesh


Ramesh Hegde
Software Engineer, Hewlett Packard
India Software Operations Pvt. Ltd
Sy No 192, Whitefield Road
Mahadevapura Post
Bangalore - 560 048. India.
+91 80 2516 6486- Direct
+91 80 2513 3522 - Fax
Jabber Id : rameshh at jabber.hp.com
+hp = everything is possible

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