Multicast Addressing
Administratively Scoped Addresses – rfc2365
239.0.0.0–239.255.255.255
Private address space
Similar to RFC1918 unicast addresses
Not used for global Internet traffic
Used to limit “scope” of multicast traffic
Same addresses may be in use at different locations for
different multicast sessions
Examples
Site-local scope: 239.253.0.0/16
Organization-local scope: 239.192.0.0/14