An IP local broadcast address has scope limited to a single IP subnet, since routers do not propagate IP broadcast datagrams. On the other hand, an IP multicast group address has scope extending to potentially the entire Internet. The scoping, routing and group membership procedures are determined by considerations beyond the scope of this document. IPv6 and OSI October 1996 used both by multicast servers and anycast clients. OSI have yet to be determined.
Multicast clients listen on the designated local broadcast address or multicast group address.
In the case of local broadcast addresses, no further provisions are necessary. Other than the IP addressing conventions and IGMP, there is no difference in server or client operations with either the local broadcast address or multicast group address.