ZyXEL Communications NSA210, NSA221, NSA310, NSA325 manual 404

Appendix C Common Services

Table 129 Commonly Used Services (continued)

NAME	PROTOCOL	PORT(S)	DESCRIPTION
ICMP	User-Defined	1	Internet Control Message Protocol is often used for
			diagnostic or routing purposes.
ICQ	UDP	4000	This is a popular Internet chat program.
IGMP (MULTICAST)	User-Defined	2	Internet Group Management Protocol is used when
			sending packets to a specific group of hosts.
IKE	UDP	500	The Internet Key Exchange algorithm is used for key
			distribution and management.
IRC	TCP/UDP	6667	This is another popular Internet chat program.
MSN Messenger	TCP	1863	Microsoft Networks’ messenger service uses this
			protocol.
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 Protocol) enables
(GRE)			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 Protocol.
SNMP-TRAPS	TCP/UDP	162	Traps for use with the SNMP (RFC:1215).
SQL-NET	TCP	1521	Structured Query Language is an interface to access
			data on many different types of database systems,
			including mainframes, midrange systems, UNIX
			systems and network servers.
SSH	TCP/UDP	22	Secure Shell Remote Login Program.

404
	Media Server User’s Guide