# Internet (IP) protocols # # Updated from http://www.iana.org/assignments/protocol-numbers and other # sources. # New protocols will be added on request if they have been officially # assigned by IANA and are not historical. # If you need a huge list of used numbers please install the nmap package. ip 0 IP # internet protocol, pseudo protocol number hopopt 0 HOPOPT # IPv6 Hop-by-Hop Option [RFC1883] 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'') st 5 ST # ST datagram mode tcp 6 TCP # transmission control protocol egp 8 EGP # exterior gateway protocol igp 9 IGP # any private interior gateway (Cisco) pup 12 PUP # PARC universal packet protocol udp 17 UDP # user datagram protocol hmp 20 HMP # host monitoring protocol xns-idp 22 XNS-IDP # Xerox NS IDP rdp 27 RDP # "reliable datagram" protocol iso-tp4 29 ISO-TP4 # ISO Transport Protocol class 4 [RFC905] dccp 33 DCCP # Datagram Congestion Control Prot. [RFC4340] xtp 36 XTP # Xpress Transfer Protocol ddp 37 DDP # Datagram Delivery Protocol idpr-cmtp 38 IDPR-CMTP # IDPR Control Message Transport ipv6 41 IPv6 # Internet Protocol, version 6 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 esp 50 IPSEC-ESP # Encap Security Payload [RFC2406] ah 51 IPSEC-AH # Authentication Header [RFC2402] skip 57 SKIP # SKIP ipv6-icmp 58 IPv6-ICMP # ICMP for IPv6 ipv6-nonxt 59 IPv6-NoNxt # No Next Header for IPv6 ipv6-opts 60 IPv6-Opts # Destination Options for IPv6 rspf 73 RSPF CPHB # Radio Shortest Path First (officially CPHB) vmtp 81 VMTP # Versatile Message Transport eigrp 88 EIGRP # Enhanced Interior Routing Protocol (Cisco) ospf 89 OSPFIGP # Open Shortest Path First IGP ax.25 93 AX.25 # AX.25 frames ipip 94 IPIP # IP-within-IP Encapsulation Protocol etherip 97 ETHERIP # Ethernet-within-IP Encapsulation [RFC3378] encap 98 ENCAP # Yet Another IP encapsulation [RFC1241] # 99 # any private encryption scheme pim 103 PIM # Protocol Independent Multicast ipcomp 108 IPCOMP # IP Payload Compression Protocol vrrp 112 VRRP # Virtual Router Redundancy Protocol [RFC5798] l2tp 115 L2TP # Layer Two Tunneling Protocol [RFC2661] isis 124 ISIS # IS-IS over IPv4 sctp 132 SCTP # Stream Control Transmission Protocol fc 133 FC # Fibre Channel mobility-header 135 Mobility-Header # Mobility Support for IPv6 [RFC3775] udplite 136 UDPLite # UDP-Lite [RFC3828] mpls-in-ip 137 MPLS-in-IP # MPLS-in-IP [RFC4023] manet 138 # MANET Protocols [RFC5498] hip 139 HIP # Host Identity Protocol shim6 140 Shim6 # Shim6 Protocol [RFC5533] wesp 141 WESP # Wrapped Encapsulating Security Payload rohc 142 ROHC # Robust Header Compression