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Servers may often support many simultaneous TCP sockets with each socket being associated with a different connecting client and each socket being identified by its own

Multiplexing is a method where multiple digital signals are combined into one over a shared medium and demultiplexing is the reverse process. Demultiplexing for TCP uses source and destination port numbers as well as source and destination IP addresses, while demultiplexing for UDP uses only the

When UDP$/$IP datagrams have the same destination port number, but different source IP addresses and source port numbers they will be directed to the at the receiving host.