Internet Protocol Numbers

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This article was previously published under Q289892
Windows 2000 and Windows Server 2003 have the ability to define Internet protocol (IP) packet filters for protocol numbers. IP packet filters are commonly used to restrict traffic in and out of each interface.
Protocol numbers are used to configure firewalls, routers, and proxy servers. In Internet Protocol version 4 (IPv4, Request for Comments [RFC] 791I), the protocol number can be found in the Protocol field of an IP header.

The following section contains a list of currently assigned IP protocol numbers. For more information about this topic (including references), please visit the following Internet Assigned Numbers Authority (IANA) Web site: NOTE: The information in this article is subject to change, and is meant only as a reference for you to use when you perform administrative tasks such as IP protocol filtering in Windows 2000 and Windows Server 2003.

Assigned Internet Protocol Numbers

NOTE: The protocols numbers are shown in decimal notation.
Decimal    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                    7     CBT         CBT                                  8     EGP         Exterior Gateway Protocol          9     IGP         any private interior gateway                                (used by Cisco for their IGRP)    10     BBN-RCC-MON BBN RCC Monitoring                        11     NVP-II      Network Voice Protocol             12     PUP         PUP                                 13     ARGUS       ARGUS                                    14     EMCON       EMCON                                     15     XNET        Cross Net Debugger                16     CHAOS       Chaos                                     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                   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             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                 33     SEP         Sequential Exchange Protocol            34     3PC         Third Party Connect Protocol             35     IDPR        Inter-Domain Policy Routing Protocol     36     XTP         XTP                                       37     DDP         Datagram Delivery Protocol                38     IDPR-CMTP   IDPR Control Message Transport Proto     39     TP++        TP++ Transport Protocol                   40     IL          IL Transport Protocol                41     ISATAP      ISATAP                                  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        Reservation Protocol               47     GRE         General Routing Encapsulation         48     MHRP        Mobile Host Routing Protocol    49     BNA         BNA                              50     ESP         Encap Security Payload for IPv6       51     AH          Authentication Header for IPv6        52     I-NLSP      Integrated Net Layer Security  TUBA     53     SWIPE       IP with Encryption                        54     NARP        NBMA Address Resolution Protocol      55     MOBILE      IP Mobility                           56     TLSP        Transport Layer Security Protocol                          using Kryptonet key management    57     SKIP        SKIP                                  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               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      ISO 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     OSPFIGP     OSPFIGP                          90     Sprite-RPC  Sprite RPC Protocol                91     LARP        Locus Address Resolution Protocol         92     MTP         Multicast Transport Protocol              93     AX.25       AX.25 Frames                             94     IPIP        IP-within-IP Encapsulation Protocol       95     MICP        Mobile Internetworking Control Pro.       96     SCC-SP      Semaphore Communications Sec. Pro.        97     ETHERIP     Ethernet-within-IP Encapsulation         98     ENCAP       Encapsulation Header             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      109     SNP         Sitara Networks Protocol             110     Compaq-Peer Compaq Peer Protocol                   111     IPX-in-IP   IPX in IP                   112     VRRP        Virtual Router Redundancy Protocol    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                           134-254             Unassigned                              255                 Reserved                             					
TCP/IP filtering udp tcp ports

Article ID: 289892 - Last Review: 11/19/2008 21:30:55 - Revision: 3.0

Microsoft Windows 2000 Advanced Server, Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)

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