# # Internet (IP) protocols # # $Id: protocols,v 1.4.2.2 1997/12/20 12:45:39 peter Exp $ # from: @(#)protocols 5.1 (Berkeley) 4/17/89 # # See also http://www.iana.org/in-notes/iana/assignments/protocol-numbers # ip 0 IP # internet protocol, pseudo protocol number #hopopt 0 HOPOPT # hop-by-hop options for ipv6 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 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 xtp 36 XTP # Xpress Tranfer Protocol idpr-cmtp 39 IDPR-CMTP # IDPR Control Message Transport ipv6 41 IPV6 # ipv6 ipv6-route 43 IPV6-ROUTE # routing header for ipv6 ipv6-frag 44 IPV6-FRAG # fragment header for ipv6 rsvp 46 RSVP # Resource ReSerVation Protocol gre 47 GRE # Generic Routing Encapsulation (RFC 1702) esp 50 ESP # encapsulating security payload ah 51 AH # authentication header 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 vmtp 81 VMTP # Versatile Message Transport ospf 89 OSPFIGP # Open Shortest Path First IGP ipip 94 IPIP # Yet Another IP encapsulation encap 98 ENCAP # Yet Another IP encapsulation divert 254 DIVERT # Divert pseudo-protocol