Assigned Internet Protocol NumbersLast Updated 2024-01-08 Available Formats XML HTML Plain text Registry included below Assigned Internet Protocol Numbers Assigned Internet Protocol Numbers Registration Procedure(s) IESG Approval or Standards Action Reference [RFC5237][RFC7045] Note In the Internet Protocol version 4 (IPv4) [RFC791] there is a field called "Protocol" to identify the next level protocol. This is an 8 bit field. In
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