ZyXEL P-663H-51 Guia Do Utilizador

 Appendix D Common Services

P-663H-51 User’s Guide

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).

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.

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

Another videoconferencing solution.

Table 77   Commonly Used Services (continued)