# $OpenBSD: protocols,v 1.25 2022/09/22 17:44:20 deraadt Exp $ # # Internet (IP) protocols, RFC 1340 # https://www.iana.org/assignments/protocol-numbers/protocol-numbers.txt # ip 0 IP HOPOPT # internet protocol, pseudo protocol number icmp 1 ICMP # internet control message protocol igmp 2 IGMP # Internet Group Management ggp 3 GGP # gateway-gateway protocol ipencap 4 IP-ENCAP # IP encapsulated in IP (officially ``IP'') st2 5 ST ST2 # ST2 datagram mode tcp 6 TCP # transmission control protocol cbt 7 UCL CBT # CBT egp 8 EGP # exterior gateway protocol igp 9 IGP # any private interior gateway bbn-rcc 10 BBN-RCC-MON # BBN RCC Monitoring nvp 11 NVP-II # Network Voice Protocol pup 12 PUP # PARC universal packet protocol argus 13 ARGUS # ARGUS emcon 14 EMCON # EMCON xnet 15 XNET # Cross Net Debugger chaos 16 CHAOS # Chaos udp 17 UDP # user datagram protocol mux 18 MUX # Multiplexing dcn 19 DCN-MEAS # DCN Measurement Subsystems hmp 20 HMP # host monitoring protocol prm 21 PRM # Packet Radio Measurement xns-idp 22 XNS-IDP # Xerox NS IDP trunk-1 23 TRUNK-1 # Trunk-1 trunk-2 24 TRUNK-2 # Trunk-2 leaf-1 25 LEAF-1 # Leaf-1 leaf-2 26 LEAF-2 # Leaf-2 rdp 27 RDP # "reliable datagram" protocol irtp 28 IRTP # Internet Reliable Transaction iso-tp4 29 ISO-TP4 # ISO Transport Protocol class 4 netblt 30 NETBLT # Bulk Data Transfer Protocol mfe-nsp 31 MFE-NSP # MFE Network Services Protocol merit-inp 32 MERIT-INP # MERIT Internodal Protocol dccp 33 SEP DCCP # Datagram Congestion Control Protocol 3pc 34 3PC # Third Party Connect Protocol idpr 35 IDPR # Inter-Domain Policy Routing Protocol xtp 36 XTP # Xpress Transfer Protocol ddp 37 DDP # Datagram Delivery Protocol idpr-cmtp 38 IDPR-CMTP # IDPR Control Message Transport Proto tp++ 39 TP++ # TP++ Transport Protocol il 40 IL # IL Transport Protocol ipv6 41 IPv6 # Internet Protocol version 6 sdrp 42 SDRP # Source Demand Routing Protocol ipv6-route 43 IPV6-ROUTE # Routing Header for IPv6 ipv6-frag 44 IPV6-FRAG # Fragment Header for IPv6 idrp 45 IDRP # Inter-Domain Routing Protocol rsvp 46 RSVP # Reservation Protocol gre 47 GRE # General Routing Encapsulation dsr 48 DSR # Dynamic Source Routing Protocol bna 49 BNA # BNA esp 50 IPSEC-ESP ESP # Encap Security Payload ah 51 IPSEC-AH AH # Authentication Header i-nlsp 52 I-NLSP # Integrated Net Layer Security TUBA swipe 53 SWIPE # IP with Encryption narp 54 NHRP NARP # NBMA Next Hop Resolution Protocol mobile 55 MOBILEIP MOBILE # MobileIP encapsulation skip 57 SKIP # SKIP ipv6-icmp 58 IPV6-ICMP icmp6 # ICMP for IPv6 ipv6-nonxt 59 IPV6-NONXT # No Next Header for IPv6 ipv6-opts 60 IPV6-OPTS # Destination Options for IPv6 any 61 any # host internal protocol cftp 62 CFTP # CFTP any 63 any # local network sat-expak 64 SAT-EXPAK # SATNET and Backroom EXPAK kryptolan 65 KRYPTOLAN # Kryptolan rvd 66 RVD # MIT Remote Virtual Disk Protocol ippc 67 IPPC # Internet Pluribus Packet Core any 68 any # distributed file system sat-mon 69 SAT-MON # SATNET Monitoring visa 70 VISA # VISA Protocol ipcv 71 IPCV # Internet Packet Core Utility cpnx 72 CPNX # Computer Protocol Network Executive cphb 73 CPHB # Computer Protocol Heart Beat wsn 74 WSN # Wang Span Network pvp 75 PVP # Packet Video Protocol br-sat-mon 76 BR-SAT-MON # Backroom SATNET Monitoring sun-nd 77 SUN-ND # SUN ND PROTOCOL-Temporary wb-mon 78 WB-MON # WIDEBAND Monitoring wb-expak 79 WB-EXPAK # WIDEBAND EXPAK iso-ip 80 ISO-IP # ISO Internet Protocol vmtp 81 VMTP # Versatile Message Transport secure-vmtp 82 SECURE-VMTP # SECURE-VMTP vines 83 VINES # VINES ttp 84 TTP # TTP nsfnet-igp 85 NSFNET-IGP # NSFNET-IGP dgp 86 DGP # Dissimilar Gateway Protocol tcf 87 TCF # TCF igrp 88 IGRP EIGRP # IGRP ospf 89 OSPFIGP # Open Shortest Path First IGP sprite-rpc 90 Sprite-RPC # Sprite RPC Protocol larp 91 LARP # Locus Address Resolution Protocol mtp 92 MTP # Multicast Transport Protocol ax.25 93 AX.25 # AX.25 Frames ipip 94 IPIP # Yet Another IP encapsulation micp 95 MICP # Mobile Internetworking Control Pro. scc-sp 96 SCC-SP # Semaphore Communications Sec. Pro. etherip 97 ETHERIP # Ethernet-within-IP Encapsulation encap 98 ENCAP # Yet Another IP encapsulation any 99 any # private encryption scheme gmtp 100 GMTP # GMTP ifmp 101 IFMP # Ipsilon Flow Management Protocol pnni 102 PNNI # PNNI over IP pim 103 PIM # Protocol Independent Multicast aris 104 ARIS scps 105 SCPS # Space Communication Protocol Standards TCP Compressed Header qnx 106 QNX a/n 107 A/N # Active Networks ipcomp 108 IPComp # IP Payload Compression Protocol snp 109 SNP # Sitara Networks Protocol compaq-peer 110 Compaq-Peer # Compaq Peer Protocol ipx-in-ip 111 IPX-in-IP # IPX in IP carp 112 CARP vrrp # Common Address Redundancy Protocol pgm 113 PGM # PGM Reliable Transport Protocol # 114 # any 0-hop protocol l2tp 115 L2TP # Layer Two Tunneling Protocol ddx 116 DDX # D-II Data Exchange (DDX) iatp 117 IATP # Interactive Agent Transfer Protocol stp 118 STP # Schedule Transfer Protocol srp 119 SRP # SpectraLink Radio Protocol uti 120 UTI smp 121 SMP # Simple Message Protocol sm 122 SM ptp 123 PTP # Performance Transparency Protocol isis 124 ISIS # IS-IS over IPv4 fire 125 FIRE crtp 126 CRTP # Combat Radio Transport Protocol crudp 127 CRUDP # Combat Radio User Datagram sscopmce 128 SSCOPMCE iplt 129 IPLT sps 130 SPS # Secure Packet Shield pipe 131 PIPE # Private IP Encapsulation within IP sctp 132 SCTP # Stream Control Transmission Protocol fc 133 FC # Fibre Channel rsvp-e2e-ignore 134 RSVP-E2E-IGNORE # Aggregation of RSVP for IP reservations mobility-header 135 Mobility-Header # Mobility Support in IPv6 udplite 136 UDPLite # The UDP-Lite Protocol mpls-in-ip 137 MPLS-IN-IP # Encapsulating MPLS in IP manet 138 MANET # MANET Protocols (RFC5498) hip 139 HIP # Host Identity Protocol (RFC5201) shim6 140 SHIM6 # Shim6 Protocol (RFC5533) wesp 141 WESP # Wrapped Encapsulating Security Payload (RFC5840) rohc 142 ROHC # Robust Header Compression (RFC5858) pfsync 240 PFSYNC # PF Synchronization # 253-254 # Use for experimentation and testing (RFC3692) reserved 255 Reserved # divert 258 DIVERT # Divert pseudo-protocol [non IANA]