Decimal |
Keyword |
Protocol |
Reference |
0 |
HOPOPT |
IPv6 Hop-by-Hop Option |
|
1 |
ICMP |
Internet Control Message |
|
2 |
IGMP |
Internet Group Management |
|
3 |
GGP |
Gateway-to-Gateway |
|
4 |
IPv4 |
IPv4 encapsulation |
|
5 |
ST |
Stream |
|
6 |
TCP |
Transmission Control |
|
7 |
CBT |
CBT |
[Tony_Ballardie] |
8 |
EGP |
Exterior Gateway Protocol |
RFC 888 |
9 |
IGP |
any private interior gateway (used by Cisco for their IGRP) |
[Internet_Assigned_Numbers_Authority] |
10 |
BBN-RCC-MON |
BBN RCC Monitoring |
[Steve_Chipman] |
11 |
NVP-II |
Network Voice Protocol |
RFC 741 |
12 |
PUP |
PUP |
[Boggs, D., J. Shoch, E. Taft, and R. Metcalfe, "PUP: An Internetwork Architecture", XEROX Palo Alto Research Center, CSL-79-10, July 1979; also in IEEE Transactions on Communication, Volume COM-28, Number 4, April 1980.] |
13 |
ARGUS (deprecated) |
ARGUS |
[Robert_W_Scheifler] |
14 |
EMCON |
EMCON |
[<mystery contact>] |
15 |
XNET |
Cross Net Debugger |
[Haverty, J., "XNET Formats for Internet Protocol Version 4", IEN 158, October 1980.] |
16 |
CHAOS |
Chaos |
[J_Noel_Chiappa] |
17 |
UDP |
User Datagram |
RFC 768 |
18 |
MUX |
Multiplexing |
[Cohen, D. and J. Postel, "Multiplexing Protocol", IEN 90, USC/Information Sciences Institute, May 1979.] |
19 |
DCN-MEAS |
DCN Measurement Subsystems |
[David_Mills] |
20 |
HMP |
Host Monitoring |
RFC 869 |
21 |
PRM |
Packet Radio Measurement |
[Zaw_Sing_Su] |
22 |
XNS-IDP |
XEROX NS IDP |
["The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification", AA-K759B-TK, Digital Equipment Corporation, Maynard, MA. Also as: "The Ethernet - A Local Area Network", Version 1.0, Digital Equipment Corporation, Intel Corporation, Xerox Corporation, September 1980. And: "The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specifications", Digital, Intel and Xerox, November 1982. And: XEROX, "The Ethernet, A Local Area Network: Data Link Layer and Physical Layer Specification", X3T51/80-50, Xerox Corporation, Stamford, CT., October 1980.] |
23 |
TRUNK-1 |
Trunk-1 |
[Barry_Boehm] |
24 |
TRUNK-2 |
Trunk-2 |
[Barry_Boehm] |
25 |
LEAF-1 |
Leaf-1 |
[Barry_Boehm] |
26 |
LEAF-2 |
Leaf-2 |
[Barry_Boehm] |
27 |
RDP |
Reliable Data Protocol |
RFC 908 |
28 |
IRTP |
Internet Reliable Transaction |
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 |
[Shuttleworth, B., "A Documentary of MFENet, a National Computer Network", UCRL-52317, Lawrence Livermore Labs, Livermore, California, June 1977.] |
32 |
MERIT-INP |
MERIT Internodal Protocol |
[Hans_Werner_Braun] |
33 |
DCCP |
Datagram Congestion Control Protocol |
|
34 |
3PC |
Third Party Connect Protocol |
[Stuart_A_Friedberg] |
35 |
IDPR |
Inter-Domain Policy Routing Protocol |
[Martha_Steenstrup] |
36 |
XTP |
XTP |
[Greg_Chesson] |
37 |
DDP |
Datagram Delivery Protocol |
[Wesley_Craig] |
38 |
IDPR-CMTP |
IDPR Control Message Transport Proto |
[Martha_Steenstrup] |
39 |
TP++ |
TP++ Transport Protocol |
[Dirk_Fromhein] |
40 |
IL |
IL Transport Protocol |
[Dave_Presotto] |
41 |
IPv6 |
IPv6 encapsulation |
|
42 |
SDRP |
Source Demand Routing Protocol |
[Deborah_Estrin] |
43 |
IPv6-Route |
Routing Header for IPv6 |
[Steve_Deering] |
44 |
IPv6-Frag |
Fragment Header for IPv6 |
[Steve_Deering] |
45 |
IDRP |
Inter-Domain Routing Protocol |
[Sue_Hares] |
46 |
RSVP |
Reservation Protocol |
|
47 |
GRE |
Generic Routing Encapsulation |
RFC 2784 |
48 |
DSR |
Dynamic Source Routing Protocol |
|
49 |
BNA |
BNA |
[Gary Salamon] |
50 |
ESP |
Encap Security Payload |
|
51 |
AH |
Authentication Header |
|
52 |
I-NLSP |
Integrated Net Layer Security TUBA |
[K_Robert_Glenn] |
53 |
SWIPE (deprecated) |
IP with Encryption |
[John_Ioannidis] |
54 |
NARP |
NBMA Address Resolution Protocol |
|
55 |
MOBILE |
IP Mobility |
[Charlie_Perkins] |
56 |
TLSP |
Transport Layer Security Protocol using Kryptonet key management |
[Christer_Oberg] |
57 |
SKIP |
SKIP |
[Tom_Markson] |
58 |
IPv6-ICMP |
ICMP for IPv6 |
|
59 |
IPv6-NoNxt |
No Next Header for IPv6 |
|
60 |
IPv6-Opts |
Destination Options for IPv6 |
|
61 |
any host internal protocol |
[Internet_Assigned_Numbers_Authority] |
|
62 |
CFTP |
CFTP |
[Forsdick, H., "CFTP", Network Message, Bolt Beranek and Newman, January 1982.] |
63 |
any local network |
[Internet_Assigned_Numbers_Authority] |
|
64 |
SAT-EXPAK |
SATNET and Backroom EXPAK |
[Steven_Blumenthal] |
65 |
KRYPTOLAN |
Kryptolan |
[Paul Liu] |
66 |
RVD |
MIT Remote Virtual Disk Protocol |
[Michael_Greenwald] |
67 |
IPPC |
Internet Pluribus Packet Core |
[Steven_Blumenthal] |
68 |
any distributed file system |
[Internet_Assigned_Numbers_Authority] |
|
69 |
SAT-MON |
SATNET Monitoring |
[Steven_Blumenthal] |
70 |
VISA |
VISA Protocol |
[Gene_Tsudik] |
71 |
IPCV |
Internet Packet Core Utility |
[Steven_Blumenthal] |
72 |
CPNX |
Computer Protocol Network Executive |
[David Mittnacht] |
73 |
CPHB |
Computer Protocol Heart Beat |
[David Mittnacht] |
74 |
WSN |
Wang Span Network |
[Victor Dafoulas] |
75 |
PVP |
Packet Video Protocol |
[Steve_Casner] |
76 |
BR-SAT-MON |
Backroom SATNET Monitoring |
[Steven_Blumenthal] |
77 |
SUN-ND |
SUN ND PROTOCOL-Temporary |
[William_Melohn] |
78 |
WB-MON |
WIDEBAND Monitoring |
[Steven_Blumenthal] |
79 |
WB-EXPAK |
WIDEBAND EXPAK |
[Steven_Blumenthal] |
80 |
ISO-IP |
ISO Internet Protocol |
[Marshall_T_Rose] |
81 |
VMTP |
VMTP |
[Dave_Cheriton] |
82 |
SECURE-VMTP |
SECURE-VMTP |
[Dave_Cheriton] |
83 |
VINES |
VINES |
[Brian Horn] |
84 |
TTP |
Transaction Transport Protocol |
[Jim_Stevens] |
84 |
IPTM |
Internet Protocol Traffic Manager |
[Jim_Stevens] |
85 |
NSFNET-IGP |
NSFNET-IGP |
[Hans_Werner_Braun] |
86 |
DGP |
Dissimilar Gateway Protocol |
[M/A-COM Government Systems, "Dissimilar Gateway Protocol Specification, Draft Version", Contract no. CS901145, November 16, 1987.] |
87 |
TCF |
TCF |
[Guillermo_A_Loyola] |
88 |
EIGRP |
EIGRP |
|
89 |
OSPFIGP |
OSPFIGP |
|
90 |
Sprite-RPC |
Sprite RPC Protocol |
[Welch, B., "The Sprite Remote Procedure Call System", Technical Report, UCB/Computer Science Dept., 86/302, University of California at Berkeley, June 1986.] |
91 |
LARP |
Locus Address Resolution Protocol |
[Brian Horn] |
92 |
MTP |
Multicast Transport Protocol |
[Susie_Armstrong] |
93 |
AX.25 |
AX.25 Frames |
[Brian_Kantor] |
94 |
IPIP |
IP-within-IP Encapsulation Protocol |
[John_Ioannidis] |
95 |
MICP (deprecated) |
Mobile Internetworking Control Pro. |
[John_Ioannidis] |
96 |
SCC-SP |
Semaphore Communications Sec. Pro. |
[Howard_Hart] |
97 |
ETHERIP |
Ethernet-within-IP Encapsulation |
|
98 |
ENCAP |
Encapsulation Header |
RFC 1241 |
99 |
any private encryption scheme |
[Internet_Assigned_Numbers_Authority] |
|
100 |
GMTP |
GMTP |
[[RXB5]] |
101 |
IFMP |
Ipsilon Flow Management Protocol |
[Bob_Hinden] |
102 |
PNNI |
PNNI over IP |
[Ross_Callon] |
103 |
PIM |
Protocol Independent Multicast |
RFC 7761 |
104 |
ARIS |
ARIS |
[Nancy_Feldman] |
105 |
SCPS |
SCPS |
[Robert_Durst] |
106 |
QNX |
QNX |
[Michael_Hunter] |
107 |
A/N |
Active Networks |
[Bob_Braden] |
108 |
IPComp |
IP Payload Compression Protocol |
|
109 |
SNP |
Sitara Networks Protocol |
[Manickam_R_Sridhar] |
110 |
Compaq-Peer |
Compaq Peer Protocol |
[Victor_Volpe] |
111 |
IPX-in-IP |
IPX in IP |
[CJ_Lee] |
112 |
VRRP |
Virtual Router Redundancy Protocol |
|
113 |
PGM |
PGM Reliable Transport Protocol |
[Tony_Speakman] |
114 |
any 0-hop protocol |
[Internet_Assigned_Numbers_Authority] |
|
115 |
L2TP |
Layer Two Tunneling Protocol |
RFC 3931 |
116 |
DDX |
D-II Data Exchange (DDX) |
[John_Worley] |
117 |
IATP |
Interactive Agent Transfer Protocol |
[John_Murphy] |
118 |
STP |
Schedule Transfer Protocol |
[Jean_Michel_Pittet] |
119 |
SRP |
SpectraLink Radio Protocol |
[Mark_Hamilton] |
120 |
UTI |
UTI |
[Peter_Lothberg] |
121 |
SMP |
Simple Message Protocol |
[Leif_Ekblad] |
122 |
SM (deprecated) |
Simple Multicast Protocol |
[Jon_Crowcroft] |
123 |
PTP |
Performance Transparency Protocol |
[Michael_Welzl] |
124 |
ISIS over IPv4 |
[Tony_Przygienda] |
|
125 |
FIRE |
[Criag_Partridge] |
|
126 |
CRTP |
Combat Radio Transport Protocol |
[Robert_Sautter] |
127 |
CRUDP |
Combat Radio User Datagram |
[Robert_Sautter] |
128 |
SSCOPMCE |
[Kurt_Waber] |
|
129 |
IPLT |
[[Hollbach]] |
|
130 |
SPS |
Secure Packet Shield |
[Bill_McIntosh] |
131 |
PIPE |
Private IP Encapsulation within IP |
[Bernhard_Petri] |
132 |
SCTP |
Stream Control Transmission Protocol |
[Randall_R_Stewart] |
133 |
FC |
Fibre Channel |
[Murali_Rajagopal]RFC 6172 |
134 |
RSVP-E2E-IGNORE |
||
135 |
Mobility Header |
||
136 |
UDPLite |
||
137 |
MPLS-in-IP |
||
138 |
manet |
MANET Protocols |
|
139 |
HIP |
Host Identity Protocol |
|
140 |
Shim6 |
Shim6 Protocol |
|
141 |
WESP |
Wrapped Encapsulating Security Payload |
|
142 |
ROHC |
Robust Header Compression |
|
143-252 |
Unassigned |
[Internet_Assigned_Numbers_Authority] |
|
253 |
Use for experimentation and testing |
||
254 |
Use for experimentation and testing |
||
255 |
Reserved |
[Internet_Assigned_Numbers_Authority] |