1 1.1 christos icmp 1 ICMP # Internet Control Message 2 1.1 christos igmp 2 IGMP # Internet Group Management 3 1.1 christos ggp 3 GGP # Gateway-to-Gateway 4 1.1 christos ip 4 IP # IP in IP (encasulation) 5 1.1 christos st 5 ST # Stream 6 1.1 christos tcp 6 TCP # Transmission Control 7 1.1 christos ucl 7 UCL # UCL 8 1.1 christos egp 8 EGP # Exterior Gateway Protocol 9 1.1 christos igp 9 IGP # any private interior gateway 10 1.1 christos bbn-rcc-mon 10 BBN-RCC-MON # BBN RCC Monitoring 11 1.1 christos nvp-ii 11 NVP-II # Network Voice Protocol 12 1.1 christos pup 12 PUP # PUP 13 1.1 christos argus 13 ARGUS # ARGUS 14 1.1 christos emcon 14 EMCON # EMCON 15 1.1 christos xnet 15 XNET # Cross Net Debugger 16 1.1 christos chaos 16 CHAOS # Chaos 17 1.1 christos udp 17 UDP # User Datagram 18 1.1 christos mux 18 MUX # Multiplexing 19 1.1 christos dcn-meas 19 DCN-MEAS # DCN Measurement Subsystems 20 1.1 christos hmp 20 HMP # Host Monitoring 21 1.1 christos prm 21 PRM # Packet Radio Measurement 22 1.1 christos xns-idp 22 XNS-IDP # XEROX NS IDP 23 1.1 christos trunk-1 23 TRUNK-1 # Trunk-1 24 1.1 christos trunk-2 24 TRUNK-2 # Trunk-2 25 1.1 christos leaf-1 25 LEAF-1 # Leaf-1 26 1.1 christos leaf-2 26 LEAF-2 # Leaf-2 27 1.1 christos rdp 27 RDP # Reliable Data Protocol 28 1.1 christos irtp 28 IRTP # Internet Reliable Transaction 29 1.1 christos iso-tp4 29 ISO-TP4 # ISO Transport Protocol Class 4 30 1.1 christos netblt 30 NETBLT # Bulk Data Transfer Protocol 31 1.1 christos mfe-nsp 31 MFE-NSP # MFE Network Services Protocol 32 1.1 christos merit-inp 32 MERIT-INP # MERIT Internodal Protocol 33 1.1 christos sep 33 SEP # Sequential Exchange Protocol 34 1.1 christos 3pc 34 3PC # Third Party Connect Protocol 35 1.1 christos idpr 35 IDPR # Inter-Domain Policy Routing Protocol 36 1.1 christos xtp 36 XTP # XTP 37 1.1 christos ddp 37 DDP # Datagram Delivery Protocol 38 1.1 christos idpr-cmtp 38 IDPR-CMTP # IDPR Control Message Transport Proto 39 1.1 christos tp++ 39 TP++ # TP++ Transport Protocol 40 1.1 christos il 40 IL # IL Transport Protocol 41 1.1 christos ipv6 41 IPv6 # Internet Protocol, version 6 42 1.1 christos sip 41 SIP # Simple Internet Protocol 43 1.1 christos sdrp 42 SDRP # Source Demand Routing Protocol 44 1.1 christos ipv6-route 43 IPv6-Route # Routing Header for IPv6 45 1.1 christos sip-sr 43 SIP-SR # SIP Source Route 46 1.1 christos ipv6-frag 44 IPv6-Frag # Fragment Hedaer for IPv6 47 1.1 christos sip-frag 44 SIP-FRAG # SIP Fragment 48 1.1 christos idrp 45 IDRP # Inter-Domain Routing Protocol 49 1.1 christos rsvp 46 RSVP # Reservation Protocol 50 1.1 christos gre 47 GRE # General Routing Encapsulation 51 1.1 christos mhrp 48 MHRP # Mobile Host Routing Protocol 52 1.1 christos bna 49 BNA # BNA 53 1.1 christos esp 50 esp # Encap Security Payload 54 1.1 christos ah 51 AH # Authentication Header 55 1.1 christos i-nlsp 52 I-NLSP # Integrated Net Layer Security TUBA 56 1.1 christos swipe 53 SWIPE # IP with Encryption 57 1.1 christos nhrp 54 NHRP # NBMA Next Hop Resolution Protocol 58 1.1 christos mobile 55 MOBILE # IP Mobility (IP tunneling) 59 1.1 christos ipv6-icmp 58 icmpv6 IPv6-ICMP ICMPv6 # ICMP version 6 60 1.1 christos ipv6-nonxt 59 IPv6-Nonxt # No Next Header for IPv6 61 1.1 christos ipv6-opts 60 IPv6-Opts # Destination Options for IPv6 62 1.1 christos any 61 any # host internal protocol 63 1.1 christos cftp 62 CFTP # CFTP 64 1.1 christos any 63 any # local network 65 1.1 christos sat-expak 64 SAT-EXPAK # SATNET and Backroom EXPAK 66 1.1 christos kryptolan 65 KRYPTOLAN # Kryptolan 67 1.1 christos rvd 66 RVD # MIT Remote Virtual Disk Protocol 68 1.1 christos ippc 67 IPPC # Internet Pluribus Packet Core 69 1.1 christos any 68 any # distributed file system 70 1.1 christos sat-mon 69 SAT-MON # SATNET Monitoring 71 1.1 christos visa 70 VISA # VISA Protocol 72 1.1 christos ipcv 71 IPCV # Internet Packet Core Utility 73 1.1 christos cpnx 72 CPNX # Computer Protocol Network Executive 74 1.1 christos cphb 73 CPHB # Computer Protocol Heart Beat 75 1.1 christos wsn 74 WSN # Wang Span Network 76 1.1 christos pvp 75 PVP # Packet Video Protocol 77 1.1 christos br-sat-mon 76 BR-SAT-MON # Backroom SATNET Monitoring 78 1.1 christos sun-nd 77 SUN-ND # SUN ND PROTOCOL-Temporary 79 1.1 christos wb-mon 78 WB-MON # WIDEBAND Monitoring 80 1.1 christos wb-expak 79 WB-EXPAK # WIDEBAND EXPAK 81 1.1 christos iso-ip 80 ISO-IP # ISO Internet Protocol 82 1.1 christos vmtp 81 VMTP # VMTP 83 1.1 christos secure-vmtp 82 SECURE-VMTP # SECURE-VMTP 84 1.1 christos vines 83 VINES # VINES 85 1.1 christos ttp 84 TTP # TTP 86 1.1 christos nsfnet-igp 85 NSFNET-IGP # NSFNET-IGP 87 1.1 christos dgp 86 DGP # Dissimilar Gateway Protocol 88 1.1 christos tcf 87 TCF # TCF 89 1.1 christos igrp 88 IGRP # IGRP 90 1.1 christos ospfigp 89 OSPFIGP # OSPFIGP 91 1.1 christos sprite-rpc 90 Sprite-RPC # Sprite RPC Protocol 92 1.1 christos larp 91 LARP # Locus Address Resolution Protocol 93 1.1 christos mtp 92 MTP # Multicast Transport Protocol 94 1.1 christos ax.25 93 AX.25 # AX.25 Frames 95 1.1 christos ipip 94 IPIP # IP-within-IP Encapsulation Protocol 96 1.1 christos micp 95 MICP # Mobile Internetworking Control Pro. 97 1.1 christos scc-sp 96 SCC-SP # Semaphore Communications Sec. Pro. 98 1.1 christos etherip 97 ETHERIP # Ethernet-within-IP Encapsulation 99 1.1 christos encap 98 ENCAP # Encapsulation Header 100 1.1 christos any 99 any # private encryption scheme 101 1.1 christos gmtp 100 GMTP # GMTP 102 1.1 christos pim 103 PIM # Protocol Independant Multicast 103 1.1 christos ipcomp 108 IPCOMP # IP Payload Compression Protocol 104 1.1 christos reserved 255 Reserved # 105
Indexes created Tue Mar 03 05:31:39 UTC 2026