List of IPv4 protocol numbers

From Wikipedia, the free encyclopedia

This is a list of IP protocol numbers that defines the number used in the protocol field of IPv4 packets and the Next Header field of IPv6 packets.

Decimal	Keyword	Protocol	References
0	HOPOPT	IPv6 Hop-by-Hop Option	RFC 1883
1	ICMP	Internet Control Message Protocol	RFC 792
2	IGMP	Internet Group Management Protocol	RFC 1112
3	GGP	Gateway-to-Gateway Protocol	RFC 823
4	IP	IP in IP (encapsulation)	RFC 2003
5	ST	Stream	RFC 1190, RFC 1819
6	TCP	Transmission Control Protocol	RFC 793
7	CBT	CBT
8	EGP	Exterior Gateway Protocol	RFC 888
9	IGP	Interior Gateway Protocol (any private interior gateway (used by Cisco for their IGRP))
10	BBN-RCC-MON	BBN RCC Monitoring
11	NVP-II	Network Voice Protocol	RFC 741
12	PUP	Xerox PUP
13	ARGUS	ARGUS
14	EMCON	EMCON
15	XNET	Cross Net Debugger	IEN 158
16	CHAOS	Chaos
17	UDP	User Datagram Protocol	RFC 768
18	MUX	Multiplexing	IEN 90
19	DCN-MEAS	DCN Measurement Subsystems
20	HMP	Host Monitoring Protocol	RFC 869
21	PRM	Packet Radio Measurement
22	XNS-IDP	XEROX NS IDP
23	TRUNK-1	Trunk-1
24	TRUNK-2	Trunk-2
25	LEAF-1	Leaf-1
26	LEAF-2	Leaf-2
27	RDP	Reliable Data Protocol	RFC 908
28	IRTP	Internet Reliable Transaction Protocol	RFC 938
29	ISO-TP4	ISO Transport Protocol Class 4	RFC 905
30	NETBLT	Bulk Data Transfer Protocol	RFC 969
31	MFE-NSP	MFE Network Services Protocol
32	MERIT-INP	MERIT Internodal Protocol
33	SEP	Sequential Exchange Protocol
34	3PC	Third Party Connect Protocol
35	IDPR	Inter-Domain Policy Routing Protocol	RFC 1479
36	XTP	XTP
37	DDP	Datagram Delivery Protocol
38	IDPR-CMTP	IDPR Control Message Transport Protocol
39	TP++	TP++ Transport Protocol
40	IL	IL Transport Protocol
41	IPv6	IPv6
42	SDRP	Source Demand Routing Protocol
43	IPv6-Route	Routing Header for IPv6
44	IPv6-Frag	Fragment Header for IPv6
45	IDRP	Inter-Domain Routing Protocol
46	RSVP	Resource Reservation Protocol
47	GRE	Generic Routing Encapsulation
48	MHRP	Mobile Host Routing Protocol
49	BNA	BNA
50	ESP	Encapsulating Security Payload	RFC 2406
51	AH	Authentication Header	RFC 2402
52	I-NLSP	Integrated Net Layer Security Protocol	TUBA
53	SWIPE	IP with Encryption
54	NARP	NBMA Address Resolution Protocol	RFC 1735
55	MOBILE	IP Mobility
56	TLSP	Transport Layer Security Protocol (using Kryptonet key management)
57	SKIP	SKIP
58	IPv6-ICMP	ICMP for IPv6	RFC 1883
59	IPv6-NoNxt	No Next Header for IPv6	RFC 1883
60	IPv6-Opts	Destination Options for IPv6	RFC 1883
61		Any host internal protocol
62	CFTP	CFTP
63		Any local network
64	SAT-EXPAK	SATNET and Backroom EXPAK
65	KRYPTOLAN	Kryptolan
66	RVD	MIT Remote Virtual Disk Protocol
67	IPPC	Internet Pluribus Packet Core
68		Any distributed file system
69	SAT-MON	SATNET Monitoring
70	VISA	VISA Protocol
71	IPCV	Internet Packet Core Utility
72	CPNX	Computer Protocol Network Executive
73	CPHB	Computer Protocol Heart Beat
74	WSN	Wang Span Network
75	PVP	Packet Video Protocol
76	BR-SAT-MON	Backroom SATNET Monitoring
77	SUN-ND	SUN ND PROTOCOL-Temporary
78	WB-MON	WIDEBAND Monitoring
79	WB-EXPAK	WIDEBAND EXPAK
80	ISO-IP	International Organisation for Standardization Internet Protocol
81	VMTP	VMTP
82	SECURE-VMTP	SECURE-VMTP
83	VINES	VINES
84	TTP	TTP
85	NSFNET-IGP	NSFNET-IGP
86	DGP	Dissimilar Gateway Protocol
87	TCF	TCF
88	EIGRP	EIGRP
89	OSPF	Open Shortest Path First	RFC 1583
90	Sprite-RPC	Sprite RPC Protocol
91	LARP	Locus Address Resolution Protocol
92	MTP	Multicast Transport Protocol
93	AX.25	AX.25
94	IPIP	IP-within-IP Encapsulation Protocol
95	MICP	Mobile Internetworking Control Protocol
96	SCC-SP	Semaphore Communications Sec. Pro
97	ETHERIP	Ethernet-within-IP Encapsulation	RFC 3378
98	ENCAP	Encapsulation Header	RFC 1241
99		Any private encryption scheme
100	GMTP	GMTP
101	IFMP	Ipsilon Flow Management Protocol
102	PNNI	PNNI over IP
103	PIM	Protocol Independent Multicast
104	ARIS	ARIS
105	SCPS	SCPS
106	QNX	QNX
107	A/N	Active Networks
108	IPComp	IP Payload Compression Protocol	RFC 2393
109	SNP	Sitara Networks Protocol
110	Compaq-Peer	Compaq Peer Protocol
111	IPX-in-IP	IPX in IP
112	VRRP	Virtual Router Redundancy Protocol, Common Address Redundancy Protocol(not IANA assigned)	VRRP:RFC 3768
113	PGM	PGM Reliable Transport Protocol
114		Any 0-hop protocol
115	L2TP	Layer Two Tunneling Protocol
116	DDX	D-II Data Exchange (DDX)
117	IATP	Interactive Agent Transfer Protocol
118	STP	Schedule Transfer Protocol
119	SRP	SpectraLink Radio Protocol
120	UTI	UTI
121	SMP	Simple Message Protocol
122	SM	SM
123	PTP	Performance Transparency Protocol
124		ISIS over IPv4
125	FIRE
126	CRTP	Combat Radio Transport Protocol
127	CRUDP	Combat Radio User Datagram
128	SSCOPMCE
129	IPLT
130	SPS	Secure Packet Shield
131	PIPE	Private IP Encapsulation within IP
132	SCTP	Stream Control Transmission Protocol
133	FC	Fibre Channel
134		RSVP-E2E-IGNORE	RFC 3175
135		Mobility Header	RFC 3775
136		UDPLite	RFC 3828
137		MPLS-in-IP	RFC 4023
138-252	UNASSIGNED
253-254	Use for experimentation and testing		RFC 3692
255	Reserved