ZyXEL Communications VMG5313-B10A/ VMG5313-B30A User Manual

 Appendix D Services

VMG5313-B10A/-B30A Series User’s Guide

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).

POP3S

TCP

995

This is a more secure version of POP3 that runs 
over SSL.

PPTP

TCP

1723

Point-to-Point Tunneling Protocol enables secure 
transfer of data over public networks. This is the 
control channel.

PPTP_TUNNEL (GRE) User-Defined

47

PPTP (Point-to-Point Tunneling 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.

ROADRUNNER

TCP/UDP

1026

This is an ISP that provides services mainly for 
cable modems.

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

The Simple File Transfer Protocol is an old way of 
transferring files between computers.

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.

SMTPS

TCP

465

This is a more secure version of SMTP that runs 
over SSL.

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.

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.

Examples of Services (continued)