# @(#)$Header: /usr/build/tin/socketshr-1105/RCS/protocols,v 16.1 1990/01/15 18:14:51 jmc Exp $
# @(#)protocols	5.1 (Berkeley) 4/17/89
#
# This file contains information regarding the known protocols
# used in the DARPA Internet.
#
# The form for each entry is:
# <official protocol name>	<protocol number>	<aliases>
#
# See the protocols(4) manual page for more information
# Note: The entries cannot be preceded by a blank space.
#
#
# Internet (IP) protocols
#
ip	0	IP		# internet protocol, pseudo protocol number
icmp	1	ICMP		# internet control message protocol
ggp	3	GGP		# gateway-gateway protocol
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
