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Appendix C. Lists of Reserved Ports, ICMP Types and Codes, and Internet Protocols
ICMP type Name Code Description
35 Mobile Registration Request
36 Mobile Registration Reply
Internet protocols and their numbers
The following table lists common Internet protocols and their protocol numbers. All these protocols run on IP. The
list is extracted from http://www.iana.org/, Protocol Numbers.
Protocol number Keyword Protocol
0 HOPOPT IPv6 Hop-by-Hop Option
1 ICMP Internet Control Message
2 IGMP Internet Group Management
3 GGP Gateway-to-Gateway
4 IP IP in IP (encapsulation)
5 ST Stream
6 TCP Transmission Control Protocol
8 EGP Exterior Gateway Protocol
9 IGP any private interior gateway
10 BBN-RCC-MON BBN RCC Monitoring
11 NVP-II Network Voice Protocol
17 UDP User Datagram
18 MUX Multiplexing
19 DCN-MEAS DCN Measurement Subsystems
20 HMP Host Monitoring
21 PRM Packet Radio Measurement
22 XNS-IDP XEROX NS IDP
27 RDP Reliable Data Protocol
28 IRTP Internet Reliable Transaction
29 ISO-TP4 ISO Transport Protocol Class 4
30 NETBLT Bulk Data Transfer Protocol
31 MFE-NSP MFE Network Services Protocol
32 MERIT-INP MERIT Internodal Protocol
34 3PC Third Party Connect Protocol
37 DDP Datagram Delivery Protocol
39 TP++ TP++ Transport Protocol
40 IL IL Transport Protocol
46 RSVP Reservation Protocol
47 GRE General Routing Encapsulation
48 MHRP Mobile Host Routing Protocol
50 ESP Encapsulation Security Payload
51 AH Authentication Header
53 SWIPE IP with Encryption
54 NHRP NBMA Next Hop Resolution Protocol
61 any host internal protocol
63 any local network
136