Список идентификаторов протоколов для IPv4
| Номер | Ключевое слово | Протокол |
| НОРОРТ | IPv6 Hop-by-Hop Option | |
| ICMP | Internet Control Message | |
| IGMP | Internet Group Management | |
| GGP | Gateway-to-Gateway | |
| IP | IP in IP (encapsulation) | |
| ST | Stream | |
| TCP | Transmission Control | |
| CBT | CBT | |
| EGP | Exterior Gateway Protocol | |
| IGP | Any private interior gateway (used by Cisco for their IGRP) | |
| BBN-RCC-MON | BBN RCC Monitoring | |
| NVP-II | Network Voice Protocol | |
| PUP | PUP | |
| ARGUS | ARGUS | |
| EMCON | EMCON | |
| XNET | Cross Net Debugger | |
| CHAOS | Chaos | |
| UDP | User Datagram | |
| MUX | Multiplexing | |
| DCN-MEAS | DCN Measurement Subsystems | |
| HMP | Host Monitoring | |
| PRM | Packet Radio Measurement | |
| XNS-IDP | XEROX NS IDP |
(продолжение)
| Номер | Ключевое слово | Протокол |
| TRUNK-1 | Trunk-1 | |
| TRUNK-2 | Trunk-2 | |
| LEAF-1 | Leaf-1 | |
| LEAF-2 | Leaf-2 | |
| RDP | Reliable Data Protocol | |
| IRTP | Internet Reliable Transaction | |
| ISO-TP4 | ISO Transport Protocol Class 4 | |
| NETBLT | Bulk Data Transfer Protocol | |
| MFE-NSP | MFE Network Services Protocol | |
| MERIT-INP | MERIT Internodal Protocol | |
| SEP | Sequential Exchange Protocol | |
| 3PC | Third Party Connect Protocol | |
| IDPR | Inter-Domain Policy Routing Protocol | |
| XTP | XTP | |
| DDP | Datagram Delivery Protocol | |
| IDPR-CMTP | IDPR Control Message Transport Proto | |
| TP++ | TP++ Transport Protocol | |
| IL | IL Transport Protocol | |
| IPv6 | IPv6 | |
| SDRP | Source Demand Routing Protocol | |
| IPv6-Route | Routing Header for IPv6 | |
| IPv6-Frag | Fragment Header for IPv6 | |
| IDRP | Inter-Domain Routing Protocol | |
| RSVP | Reservation Protocol | |
| GRE | General Routing Encapsulation | |
| MHRP | Mobile Host Routing Protocol | |
| BNA | BNA | |
| ESP | Encap Security Payload for IPv6 | |
| AH | Authentication Header for IPv6 | |
| I-NLSP | Integrated Net Layer Security TUBA |
(продолжение)
| Номер | Ключевое слово | Протокол |
| SWIPE | IP with Encryption | |
| NARP | NBMA Address Resolution Protocol | |
| MOBILE | IP Mobility | |
| TLSP | Transport Layer Security Protocol using Kryptonet key management | |
| SKIP | SKIP | |
| IPV6-ICMP | ICMP for IPv6 | |
| IPv6-NoNxt | No Next Header for IPv6 | |
| IPv6-Opts | Destination Options for IPv6 | |
| Any host internal protocol | ||
| CFTP | CFTP | |
| any local network | ||
| SAT-EXPAK | SATNET and Backroom EXPAK | |
| KRYPTOLAN | Kryptolan | |
| RVD | MIT Remote Virtual Disk Protocol | |
| IPPC | Internet Pluribus Packet Core | |
| Any distributed file system | ||
| SAT-MON | SATNET Monitoring | |
| VISA | VISA Protocol | |
| IPCV | Internet Packet Core Utility | |
| CPNX | Computer Protocol Network Executive | |
| CPHB | Computer Protocol Heart Beat | |
| WSN | Wang Span Network | |
| PVP | Packet Video Protocol | |
| BR-SAT-MON | Backroom SATNET Monitoring | |
| SUN-ND | SUN ND PROTOCOL-Temporary | |
| WB-MON | WIDEBAND Monitoring | |
| WB-EXPAK | WIDEBAND EXPAK | |
| ISO-IP | ISO Internet Protocol | |
| VMTP | VMTP |
(продолжение)
| Номер | Ключевое слово | Протокол |
| SECURE-VMTP | SECURE-VMTP | |
| VINES | VINES | |
| TIP | TIP | |
| NSFNET-IGP | NSFNET-IGP | |
| DGP | Dissimilar Gateway Protocol | |
| TCP | TCF | |
| EIGRP | EIGRP | |
| OSPFIGP | OSPFIGP | |
| Sprite-RPC | Sprite RPC Protocol | |
| LARP | Locus Address Resolution Protocol | |
| MTP | Multicast Transport Protocol | |
| AX.25 | AX.25 Frames | |
| IPIP | IP-within-IP Encapsulation Protocol | |
| MICP | Mobile Internetworking Control Pro | |
| SCC-SP | Semaphore Communications Sec. Pro | |
| ETHERIP | Ethernet-within-IP Encapsulation | |
| ENCAP | Encapsulation Header | |
| Any private encryption scheme | ||
| GMTP | GMTP | |
| IFMP | Ipsilon Flow Management Protocol | |
| PNNI | PNNI over IP | |
| PIM | Protocol Independent Multicast | |
| ARIS | ARIS | |
| SCPS | SCPS | |
| QNX | QNX | |
| A/N | Active Networks | |
| IPComp | IP Payload Compression Protocol | |
| SNP | Sitara Networks Protocol | |
| Compaq-Peer | Compaq Peer Protocol | |
| IPX-in-IP | IPX in IP |
(окончание)
| Номер | Ключевое слово | Протокол |
| VRRP | Virtual Router Redundancy Protocol | |
| PGM | PGM Reliable Transport Protocol | |
| Any 0-hop protocol | ||
| L2TP | Layer Two Tunneling Protocol | |
| DDX | D-II Data Exchange (DDX) | |
| IATP | Interactive Agent Transfer Protocol | |
| STP | Schedule Transfer Protocol | |
| SRP | SpectraLink Radio Protocol | |
| UTI | UTI | |
| SMP | Simple Message Protocol | |
| SM | SM | |
| PTP | Performance Transparency Protocol | |
| ISIS | ISIS over IPv4 | |
| FIRE | FIRE | |
| CRTP | Combat Radio Transport Protocol | |
| CRUDP | Combat Radio User Datagram | |
| SSCOPMCE | SSCOPMCE | |
| IPLT | IPLT | |
| SPS | Secure Packet Shield | |
| PIPE | Private IP Encapsulation within IP | |
| SCTP | Stream Control Transmission Protocol | |
| FC | Fibre Channel | |
| 134-254 | Unassigned | |
| Reserved |
Приложение 5