![]() ![]() Address information at IPv4 datagram is source and destination IPv4 addresses, but the address information at layer 2 frame is source and destination MAC addresses. When a unicast data packet is sent to the network, the layer 3 (network layer) IPv4 datagram is encapsulated within layer 2 (datalink layer) frame. Why we need multicast IPv4 address to multicast MAC address mapping
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