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Valeur du champ Protocole dans IP

Dans le protocole Internet, il y a un champ appelé Protocole, pour identifier le protocole de niveau supérieur. C'est un champ de 8 bits.

Voici les numéros de protocole Internet assignés :

Decimal	Keyword	Protocol	References
----------	------------	-----------------------------------	------------
0		Reserved	[JBP]
1	ICMP	Internet Control Message	[97,JBP]
2	IGMP	Internet Group Management	[43,JBP]
3	GGP	Gateway-to-Gateway	[60,MB]
4		Unassigned	[JBP]
5	ST	Stream	[49,JWF]
6	TCP	Transmission Control	[106,JBP]
7	UCL	UCL	[PK]
8	EGP	Exterior Gateway Protocol	[123,DLM1]
9	IGP	any private interior gateway	[JBP]
10	BBN-RCC-MON	BBN RCC Monitoring	[SGC]
11	NVP-II	Network Voice Protocol	[22,SC3]
12	PUP	PUP	[8,XEROX]
13	ARGUS	ARGUS	[RWS4]
14	EMCON	EMCON	[BN7]
15	XNET	Cross Net Debugger	[56,JFH2]
16	CHAOS	Chaos	[NC3]
17	UDP	User Datagram	[104,JBP]
18	MUX	Multiplexing	[23,JBP]
19	DCN-MEAS	DCN Measurement Subsystems	[DLM1]
20	HMP	Host Monitoring	[59,RH6]
21	PRM	Packet Radio Measurement	[ZSU]
22	XNS-IDP	XEROX NS IDP	[133,XEROX]
23	TRUNK-1	Trunk-1	[BWB6]
24	TRUNK-2	Trunk-2	[BWB6]
25	LEAF-1	Leaf-1	[BWB6]
26	LEAF-2	Leaf-2	[BWB6]
27	RDP	Reliable Data Protocol	[138,RH6]
28	IRTP	Internet Reliable Transaction	[79,TXM]
29	ISO-TP4	ISO Transport Protocol Class 4	[63,RC77]
30	NETBLT	Bulk Data Transfer Protocol	[20,DDC1]
31	MFE-NSP	MFE Network Services Protocol	[124,BCH2]
32	MERIT-INP	MERIT Internodal Protocol	[HWB]
33	SEP	Sequential Exchange Protocol	[JC120]
34	3PC	Third Party Connect Protocol	[SAF3]
35-60		Unassigned	[JBP]
61		any host internal protocol	[JBP]
62	CFTP	CFTP	[50,HCF2]
63		any local network	[JBP]
64	SAT-EXPAK	SATNET and Backroom EXPAK	[SHB]
65		Unassigned	[JBP]
66	RVD	MIT Remote Virtual Disk Protocol	[MBG]
67	IPPC	Internet Pluribus Packet Core	[SHB]
68		any distributed file system	[JBP]
69	SAT-MON	SATNET Monitoring	[SHB]
70	VISA	VISA Protocol	[GXT1]
71	IPCV	Internet Packet Core Utility	[SHB]
72-75		Unassigned	[JBP]
76	BR-SAT-MON	Backroom SATNET Monitoring	[SHB]
77	SUN-ND	SUN ND PROTOCOL-Temporary	[WM3]
78	WB-MON	WIDEBAND Monitoring	[SHB]
79	WB-EXPAK	WIDEBAND EXPAK	[SHB]
80	ISO-IP	ISO Internet Protocol	[MTR]
81	VMTP	VMTP	[DRC3]
82	SECURE-VMTP	SECURE-VMTP	[DRC3]
83	VINES	VINES	[BXH]
84	TTP	TTP	[JXS]
85	NSFNET-IGP	NSFNET-IGP	[HWB]
86	DGP	Dissimilar Gateway Protocol	[74,ML109]
87	TCF	TCF	[GAL5]
88	IGRP	IGRP	[18,GXS]
89	OSPFIGP	OSPFIGP	[83,JTM4]
90	Sprite-RPC	Sprite RPC Protocol	[143,BXW]
91	LARP	Locus Address Resolution Protocol	[BXH]
92-254		Unassigned	[JBP]
255		Reserved	[JBP]

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