1icmp 1 ICMP # Internet Control Message 2igmp 2 IGMP # Internet Group Management 3ggp 3 GGP # Gateway-to-Gateway 4ip 4 IP # IP in IP (encasulation) 5st 5 ST # Stream 6tcp 6 TCP # Transmission Control 7ucl 7 UCL # UCL 8egp 8 EGP # Exterior Gateway Protocol 9igp 9 IGP # any private interior gateway 10bbn-rcc-mon 10 BBN-RCC-MON # BBN RCC Monitoring 11nvp-ii 11 NVP-II # Network Voice Protocol 12pup 12 PUP # PUP 13argus 13 ARGUS # ARGUS 14emcon 14 EMCON # EMCON 15xnet 15 XNET # Cross Net Debugger 16chaos 16 CHAOS # Chaos 17udp 17 UDP # User Datagram 18mux 18 MUX # Multiplexing 19dcn-meas 19 DCN-MEAS # DCN Measurement Subsystems 20hmp 20 HMP # Host Monitoring 21prm 21 PRM # Packet Radio Measurement 22xns-idp 22 XNS-IDP # XEROX NS IDP 23trunk-1 23 TRUNK-1 # Trunk-1 24trunk-2 24 TRUNK-2 # Trunk-2 25leaf-1 25 LEAF-1 # Leaf-1 26leaf-2 26 LEAF-2 # Leaf-2 27rdp 27 RDP # Reliable Data Protocol 28irtp 28 IRTP # Internet Reliable Transaction 29iso-tp4 29 ISO-TP4 # ISO Transport Protocol Class 4 30netblt 30 NETBLT # Bulk Data Transfer Protocol 31mfe-nsp 31 MFE-NSP # MFE Network Services Protocol 32merit-inp 32 MERIT-INP # MERIT Internodal Protocol 33sep 33 SEP # Sequential Exchange Protocol 343pc 34 3PC # Third Party Connect Protocol 35idpr 35 IDPR # Inter-Domain Policy Routing Protocol 36xtp 36 XTP # XTP 37ddp 37 DDP # Datagram Delivery Protocol 38idpr-cmtp 38 IDPR-CMTP # IDPR Control Message Transport Proto 39tp++ 39 TP++ # TP++ Transport Protocol 40il 40 IL # IL Transport Protocol 41ipv6 41 IPv6 # Internet Protocol, version 6 42sip 41 SIP # Simple Internet Protocol 43sdrp 42 SDRP # Source Demand Routing Protocol 44ipv6-route 43 IPv6-Route # Routing Header for IPv6 45sip-sr 43 SIP-SR # SIP Source Route 46ipv6-frag 44 IPv6-Frag # Fragment Hedaer for IPv6 47sip-frag 44 SIP-FRAG # SIP Fragment 48idrp 45 IDRP # Inter-Domain Routing Protocol 49rsvp 46 RSVP # Reservation Protocol 50gre 47 GRE # General Routing Encapsulation 51mhrp 48 MHRP # Mobile Host Routing Protocol 52bna 49 BNA # BNA 53esp 50 esp # Encap Security Payload 54ah 51 AH # Authentication Header 55i-nlsp 52 I-NLSP # Integrated Net Layer Security TUBA 56swipe 53 SWIPE # IP with Encryption 57nhrp 54 NHRP # NBMA Next Hop Resolution Protocol 58mobile 55 MOBILE # IP Mobility (IP tunneling) 59ipv6-icmp 58 icmpv6 IPv6-ICMP ICMPv6 # ICMP version 6 60ipv6-nonxt 59 IPv6-Nonxt # No Next Header for IPv6 61ipv6-opts 60 IPv6-Opts # Destination Options for IPv6 62any 61 any # host internal protocol 63cftp 62 CFTP # CFTP 64any 63 any # local network 65sat-expak 64 SAT-EXPAK # SATNET and Backroom EXPAK 66kryptolan 65 KRYPTOLAN # Kryptolan 67rvd 66 RVD # MIT Remote Virtual Disk Protocol 68ippc 67 IPPC # Internet Pluribus Packet Core 69any 68 any # distributed file system 70sat-mon 69 SAT-MON # SATNET Monitoring 71visa 70 VISA # VISA Protocol 72ipcv 71 IPCV # Internet Packet Core Utility 73cpnx 72 CPNX # Computer Protocol Network Executive 74cphb 73 CPHB # Computer Protocol Heart Beat 75wsn 74 WSN # Wang Span Network 76pvp 75 PVP # Packet Video Protocol 77br-sat-mon 76 BR-SAT-MON # Backroom SATNET Monitoring 78sun-nd 77 SUN-ND # SUN ND PROTOCOL-Temporary 79wb-mon 78 WB-MON # WIDEBAND Monitoring 80wb-expak 79 WB-EXPAK # WIDEBAND EXPAK 81iso-ip 80 ISO-IP # ISO Internet Protocol 82vmtp 81 VMTP # VMTP 83secure-vmtp 82 SECURE-VMTP # SECURE-VMTP 84vines 83 VINES # VINES 85ttp 84 TTP # TTP 86nsfnet-igp 85 NSFNET-IGP # NSFNET-IGP 87dgp 86 DGP # Dissimilar Gateway Protocol 88tcf 87 TCF # TCF 89igrp 88 IGRP # IGRP 90ospfigp 89 OSPFIGP # OSPFIGP 91sprite-rpc 90 Sprite-RPC # Sprite RPC Protocol 92larp 91 LARP # Locus Address Resolution Protocol 93mtp 92 MTP # Multicast Transport Protocol 94ax.25 93 AX.25 # AX.25 Frames 95ipip 94 IPIP # IP-within-IP Encapsulation Protocol 96micp 95 MICP # Mobile Internetworking Control Pro. 97scc-sp 96 SCC-SP # Semaphore Communications Sec. Pro. 98etherip 97 ETHERIP # Ethernet-within-IP Encapsulation 99encap 98 ENCAP # Encapsulation Header 100any 99 any # private encryption scheme 101gmtp 100 GMTP # GMTP 102pim 103 PIM # Protocol Independant Multicast 103ipcomp 108 IPCOMP # IP Payload Compression Protocol 104reserved 255 Reserved # 105