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