![]() ![]() Flip the 'U/L' bit: Invert the second least significant bit of the first byte of the MAC address. In our example, it becomes 3C:4D:FF:FE:5E. Insert 'FFFE': Insert 'FFFE' in the middle of the MAC address. Registry as an additional reference in the Realm-Local scopeĮntry. Extract the MAC address: For example, if the MAC address is 00:1A:2B:3C:4D:5E, take the last 6 bytes (3C:4D:5E) as the MAC address. Because there are 28 significant bits in an IP host group address, more than one host group address may map to the same Ethernet multicast. Scope definition would be appropriate for publication in anĪny RFCs that define a Realm-Local scope will be listed in this An IP host group address is mapped to an Ethernet multicast address by placing the low-order 23-bits of the IP address into the low-order 23 bits of the Ethernet multicast address 01-00-5E-00-00-00 (hex). ![]() Technology should be published in an RFC. IPv6 Multicast Address Scopes Registration Procedure(s) IETF Review Reference Note The definition of any Realm-Local scope for a particular network
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