Group Destination Address are broadcast address in class D domain. Multicast IP address are Class D IP address, from 224.0.0.0 to 239.255.255.255. They are also referred to as Group Destination Address (GDA). There is a mapping between IP address and MAC address for GDA. GDA MAC address is formed by 01:00:5E:XX:XX:XX, followed by the latest 24 bits of the GDA multicast IP address in hex.
Example: 220.15.15.15 --> Ethernet MAC of 01:00:5E:0F:0F:0F
For IPv6 Multicast addresses, the Ethernet MAC is derived by the four low-order octets OR'ed with the MAC 33:33:00:00:00:00.
Example: the IPv6 address FF02:DEAD:BEEF::1:3 --> Ethernet MAC of 33:33:00:01:00:03 (RFC 2464).
Famous quotes containing the words group, destination and/or address:
“It is not God that is worshipped but the group or authority that claims to speak in His name. Sin becomes disobedience to authority not violation of integrity.”
—Sarvepalli, Sir Radhakrishnan (1888–1975)
“If we are always arriving and departing, it is also true that we are eternally anchored. One’s destination is never a place but rather a new way of looking at things.”
—Henry Miller (1891–1980)
“Self-confidence is apt to address itself to an imaginary dullness in others; as people who are well off speak in a cajoling tone to the poor.”
—George Eliot [Mary Ann (or Marian)