Appendix B. Well-known Protocol, Port, and Other Numbers

Refer to the following sections for explanations and listings of well-known numbers:

  • B-1: IP Protocol Numbers

  • B-2: ICMP Type and Code Numbers

  • B-3: Well-known IP Port Numbers

  • B-4: Well-Known IP Multicast Addresses

  • B-5: Ethernet Type Codes

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