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TCP/UDP Port Numbers. Last Updated Expert(s) TCP/UDP: Joe Touch; Eliot Lear, Allison Mankin, Markku Kojo, Kumiko Ono, Martin Stiemerling, Lars Eggert, Alexey Melnikov and Wes Eddy; DCCP: Eddie Kohler; SCTP: Allison Mankin.

TCP/UDP Port Numbers

Multicast IP Address. IPv4 address. IANA IPv4 Address Space Registry Last Updated Registration Procedure(s) Allocations to RIRs are made in line with the Global Policy published at [ All other assignments require IETF Review.

IPv4 address

Description. Ethernet type / Mac / Multicast.