Archive for August, 2012

Multicast addresses in IP over Ethernet »

Mapping IPv4 Multicast Addresses to Ethernet Addresses For multicast to work properly in IP-over-Ethernet, each IP multicast address must be mapped to a corresponding Ethernet multicast address. The IANA owns an Ethernet OUI (01:00:5e), half of which has been reserved for this purpose. Problem: However, the address space for IP multicast addresses is 28 bits […]