IP Protocols

  # /etc/protocols:
  # $Id: protocols,v 1.3 2001/07/07 07:07:15 nalin Exp $
  #
  # Internet (IP) protocols
  #
  #	from: @(#)protocols	5.1 (Berkeley) 4/17/89
  #
  # Updated for NetBSD based on RFC 1340, Assigned Numbers (July 1992).
  #
  # See also http://www.iana.org/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 protocol
  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
  cbt	7	CBT		# CBT, Tony Ballardie 
  egp	8	EGP		# exterior gateway protocol
  igp	9	IGP		# any private interior gateway (Cisco: for IGRP)
  bbn-rcc	10	BBN-RCC-MON	# BBN RCC Monitoring
  nvp	11	NVP-II		# Network Voice Protocol
  pup	12	PUP		# PARC universal packet protocol
  argus	13	ARGUS		# ARGUS
  emcon	14	EMCON		# EMCON
  xnet	15	XNET		# Cross Net Debugger
  chaos	16	CHAOS		# Chaos
  udp	17	UDP		# user datagram protocol
  mux	18	MUX		# Multiplexing protocol
  dcn	19	DCN-MEAS	# DCN Measurement Subsystems
  hmp	20	HMP		# host monitoring protocol
  prm	21	PRM		# packet radio measurement protocol
  xns-idp	22	XNS-IDP		# Xerox NS IDP
  trunk-1	23	TRUNK-1		# Trunk-1
  trunk-2	24	TRUNK-2		# Trunk-2
  leaf-1	25	LEAF-1		# Leaf-1
  leaf-2	26	LEAF-2		# Leaf-2
  rdp	27	RDP		# "reliable datagram" protocol
  irtp	28	IRTP		# Internet Reliable Transaction Protocol
  iso-tp4	29	ISO-TP4		# ISO Transport Protocol Class 4
  netblt	30	NETBLT		# Bulk Data Transfer Protocol
  mfe-nsp	31	MFE-NSP		# MFE Network Services Protocol
  merit-inp	32	MERIT-INP	# MERIT Internodal Protocol
  sep	33	SEP		# Sequential Exchange Protocol
  3pc	34	3PC		# Third Party Connect Protocol
  idpr	35	IDPR		# Inter-Domain Policy Routing Protocol
  xtp	36	XTP		# Xpress Tranfer Protocol
  ddp	37	DDP		# Datagram Delivery Protocol
  idpr-cmtp	38	IDPR-CMTP	# IDPR Control Message Transport Proto
  tp++	39	TP++		# TP++ Transport Protocol
  il	40	IL		# IL Transport Protocol
  ipv6	41	IPv6		# IPv6
  sdrp	42	SDRP		# Source Demand Routing Protocol
  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		# Resource ReSerVation Protocol
  gre	47	GRE		# Generic Routing Encapsulation
  mhrp	48	MHRP		# Mobile Host Routing Protocol
  bna	49	BNA		# BNA
  ipv6-crypt	50	IPv6-Crypt	# Encryption Header for IPv6
  ipv6-auth	51	IPv6-Auth	# Authentication Header for IPv6
  i-nlsp	52	I-NLSP		# Integrated Net Layer Security TUBA
  swipe	53	SWIPE		# IP with Encryption
  narp	54	NARP		# NBMA Address Resolution Protocol
  mobile	55	MOBILE		# IP Mobility
  tlsp	56	TLSP		# Transport Layer Security Protocol
  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
  #	61			# any host internal protocol
  cftp	62	CFTP		# CFTP
  #	63			# any local network
  sat-expak	64	SAT-EXPAK	# SATNET and Backroom EXPAK
  kryptolan	65	KRYPTOLAN	# Kryptolan
  rvd	66	RVD		# MIT Remote Virtual Disk Protocol
  ippc	67	IPPC		# Internet Pluribus Packet Core
  #	68			# any distributed file system
  sat-mon	69	SAT-MON		# SATNET Monitoring
  visa	70	VISA		# VISA Protocol
  ipcv	71	IPCV		# Internet Packet Core Utility
  cpnx	72	CPNX		# Computer Protocol Network Executive
  cphb	73	CPHB		# Computer Protocol Heart Beat
  wsn	74	WSN		# Wang Span Network
  pvp	75	PVP		# Packet Video Protocol
  br-sat-mon	76	BR-SAT-MON	# Backroom SATNET Monitoring
  sun-nd	77	SUN-ND		# SUN ND PROTOCOL-Temporary
  wb-mon	78	WB-MON		# WIDEBAND Monitoring
  wb-expak	79	WB-EXPAK	# WIDEBAND EXPAK
  iso-ip	80	ISO-IP		# ISO Internet Protocol
  vmtp	81	VMTP		# Versatile Message Transport
  secure-vmtp	82	SECURE-VMTP	# SECURE-VMTP
  vines	83	VINES		# VINES
  ttp	84	TTP		# TTP
  nsfnet-igp	85	NSFNET-IGP	# NSFNET-IGP
  dgp	86	DGP		# Dissimilar Gateway Protocol
  tcf	87	TCF		# TCF
  eigrp	88	EIGRP		# Enhanced Interior Routing Protocol (Cisco)
  ospf	89	OSPFIGP		# Open Shortest Path First IGP
  sprite-rpc	90	Sprite-RPC	# Sprite RPC Protocol
  larp	91	LARP		# Locus Address Resolution Protocol
  mtp	92	MTP		# Multicast Transport Protocol
  ax.25	93	AX.25		# AX.25 Frames
  ipip	94	IPIP		# Yet Another IP encapsulation
  micp	95	MICP		# Mobile Internetworking Control Pro.
  scc-sp	96	SCC-SP		# Semaphore Communications Sec. Pro.
  etherip	97	ETHERIP		# Ethernet-within-IP Encapsulation
  encap	98	ENCAP		# Yet Another IP encapsulation
  #	99			# any private encryption scheme
  gmtp	100	GMTP		# GMTP
  ifmp	101	IFMP		# Ipsilon Flow Management Protocol
  pnni	102	PNNI		# PNNI over IP
  pim	103	PIM		# Protocol Independent Multicast
  aris	104	ARIS		# ARIS
  scps	105	SCPS		# SCPS
  qnx	106	QNX		# QNX
  a/n	107	A/N		# Active Networks
  ipcomp	108	IPComp		# IP Payload Compression Protocol
  snp	109	SNP		# Sitara Networks Protocol
  compaq-peer	110	Compaq-Peer	# Compaq Peer Protocol
  ipx-in-ip	111	IPX-in-IP	# IPX in IP
  vrrp	112	VRRP		# Virtual Router Redundancy Protocol
  pgm	113	PGM		# PGM Reliable Transport Protocol
  #	114			# any 0-hop protocol
  l2tp	115	L2TP		# Layer Two Tunneling Protocol
  ddx	116	DDX		# D-II Data Exchange
  iatp	117	IATP		# Interactive Agent Transfer Protocol
  stp	118	STP		# Schedule Transfer
  srp	119	SRP		# SpectraLink Radio Protocol
  uti	120	UTI		# UTI
  smp	121	SMP		# Simple Message Protocol
  sm	122	SM		# SM
  ptp	123	PTP		# Performance Transparency Protocol
  isis	124	ISIS		# ISIS over IPv4
  fire	125	FIRE
  crtp	126	CRTP		# Combat Radio Transport Protocol
  crdup	127	CRUDP		# Combat Radio User Datagram
  sscopmce	128	SSCOPMCE
  iplt	129	IPLT
  sps	130	SPS		# Secure Packet Shield
  pipe	131	PIPE		# Private IP Encapsulation within IP
  sctp	132	SCTP		# Stream Control Transmission Protocol
  fc	133	FC		# Fibre Channel
  # rsvp-e2e-ignore	134	RSVP-E2E-IGNORE
  #	134-254			# Unassigned
  #	255			# Reserved