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). 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 address.

Source: RFC1112

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). 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 address.

Source: RFC1112

   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).
   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 address.

Source: RFC1112

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). 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 address.

Source: RFC1112