ZyXEL Communications MES-2110 manual 223

			Appendix B Common Services
Table 87 Commonly Used Services (continued)
NAME	PROTOCOL	PORT(S)	DESCRIPTION
NEW-ICQ	TCP	5190	An Internet chat program.
NEWS	TCP	144	A protocol for news groups.
NFS	UDP	2049	Network File System - NFS is a client/
			server distributed file service that
			provides transparent file sharing for
			network environments.
NNTP	TCP	119	Network News Transport Protocol is
			the delivery mechanism for the
			USENET newsgroup service.
PING	User-Defined	1	Packet INternet Groper is a protocol
			that sends out ICMP echo requests to
			test whether or not a remote host is
			reachable.
POP3	TCP	110	Post Office Protocol version 3 lets a
			client computer get e-mail from a
			POP3 server through a temporary
			connection (TCP/IP or other).
PPTP	TCP	1723	Point-to-Point Tunneling Protocol
			enables secure transfer of data over
			public networks. This is the control
			channel.
PPTP_TUNNEL	User-Defined	47	PPTP (Point-to-Point Tunneling
(GRE)			Protocol) enables secure transfer of
			data over public networks. This is the
			data channel.
RCMD	TCP	512	Remote Command Service.
REAL_AUDIO	TCP	7070	A streaming audio service that
			enables real time sound over the web.
REXEC	TCP	514	Remote Execution Daemon.
RLOGIN	TCP	513	Remote Login.
RTELNET	TCP	107	Remote Telnet.
RTSP	TCP/UDP	554	The Real Time Streaming (media
			control) Protocol (RTSP) is a remote
			control for multimedia on the
			Internet.
SFTP	TCP	115	Simple File Transfer Protocol.
SMTP	TCP	25	Simple Mail Transfer Protocol is the
			message-exchange standard for the
			Internet. SMTP enables you to move
			messages from one e-mail server to
			another.
SNMP	TCP/UDP	161	Simple Network Management
			Program.
SNMP-TRAPS	TCP/UDP	162	Traps for use with the SNMP
			(RFC:1215).

MES-2110 User’s Guide

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