icmp		1	ICMP		# Internet Control Message
igmp		2	IGMP		# Internet Group Management
ggp		3	GGP		# Gateway-to-Gateway
ip		4	IP		# IP in IP (encasulation)
st		5	ST		# Stream
tcp		6	TCP		# Transmission Control
ucl		7	UCL		# UCL
egp		8	EGP		# Exterior Gateway Protocol
igp		9	IGP		# any private interior gateway
bbn-rcc-mon	10	BBN-RCC-MON	# BBN RCC Monitoring
nvp-ii		11	NVP-II		# Network Voice Protocol
pup		12	PUP		# PUP
argus		13	ARGUS		# ARGUS
emcon		14	EMCON		# EMCON
xnet		15	XNET		# Cross Net Debugger
chaos		16	CHAOS		# Chaos
udp		17	UDP		# User Datagram
mux		18	MUX		# Multiplexing
dcn-meas	19	DCN-MEAS	# DCN Measurement Subsystems
hmp		20	HMP		# Host Monitoring
prm		21	PRM		# Packet Radio Measurement
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 Data Protocol
irtp		28	IRTP		# Internet Reliable Transaction
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		# XTP
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		# Internet Protocol, version 6
sip		41	SIP		# Simple Internet Protocol
sdrp		42	SDRP		# Source Demand Routing Protocol
ipv6-route	43	IPv6-Route	# Routing Header for IPv6
sip-sr		43	SIP-SR		# SIP Source Route
ipv6-frag	44	IPv6-Frag	# Fragment Hedaer for IPv6
sip-frag	44	SIP-FRAG	# SIP Fragment
idrp		45	IDRP		# Inter-Domain Routing Protocol
rsvp		46	RSVP		# Reservation Protocol
gre		47	GRE		# General Routing Encapsulation
mhrp		48	MHRP		# Mobile Host Routing Protocol
bna		49	BNA		# BNA
esp		50	esp		# Encap Security Payload
ah		51	AH		# Authentication Header
i-nlsp		52	I-NLSP		# Integrated Net Layer Security TUBA
swipe		53	SWIPE		# IP with Encryption
nhrp		54	NHRP		# NBMA Next Hop Resolution Protocol
mobile		55	MOBILE		# IP Mobility (IP tunneling)
ipv6-icmp	58	icmpv6 IPv6-ICMP ICMPv6	# ICMP version 6
ipv6-nonxt	59	IPv6-Nonxt	# No Next Header for IPv6
ipv6-opts	60	IPv6-Opts	# Destination Options for IPv6
any		61	any		# host internal protocol
cftp		62	CFTP		# CFTP
any		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
any		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		# VMTP
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
igrp		88	IGRP		# IGRP
ospfigp		89	OSPFIGP		# OSPFIGP
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		# IP-within-IP Encapsulation Protocol
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		# Encapsulation Header
any		99	any		# private encryption scheme
gmtp		100	GMTP		# GMTP
pim		103	PIM		# Protocol Independant Multicast
ipcomp		108	IPCOMP		# IP Payload Compression Protocol
reserved	255	Reserved	#