ZyXEL Communications NBG-417N manual 256

Appendix E Services

Table 83 Examples of Services (continued)

NAME	PROTOCOL	PORT(S)	DESCRIPTION
SSDP	UDP	1900	The Simple Service Discovery Protocol
			supports Universal Plug-and-Play
			(UPnP).
SSH	TCP/UDP	22	Secure Shell Remote Login Program.
STRM WORKS	UDP	1558	Stream Works Protocol.
SYSLOG	UDP	514	Syslog allows you to send system logs
			to a UNIX server.
TACACS	UDP	49	Login Host Protocol used for (Terminal
			Access Controller Access Control
			System).
TELNET	TCP	23	Telnet is the login and terminal
			emulation protocol common on the
			Internet and in UNIX environments. It
			operates over TCP/IP networks. Its
			primary function is to allow users to
			log into remote host systems.
TFTP	UDP	69	Trivial File Transfer Protocol is an
			Internet file transfer protocol similar
			to FTP, but uses the UDP (User
			Datagram Protocol) rather than TCP
			(Transmission Control Protocol).
VDOLIVE	TCP	7000	A videoconferencing solution. The UDP
	UDP	user-	port number is specified in the
			application.
		defined

256

NBG-417N User’s Guide