ZyXEL Communications NBG-417N User Manual

Chapter 7 Wireless LAN

NBG-417N User’s Guide

Service

The following is a description of the applications you can prioritize with WMM 
QoS. Select a service from the drop-down list box. 

Electronic mail consists of messages sent through a computer network to 
specific groups or individuals. Here are some default ports for e-mail: 

POP3 - port 110

IMAP - port 143

SMTP - port 25

HTTP - port 80

File Transfer Protocol enables fast transfer of files, including large files that it 
may not be possible to send via e-mail. FTP uses port number 21.

The World Wide Web is an Internet system to distribute graphical, hyper-
linked information, based on Hyper Text Transfer Protocol (HTTP) - a client/
server protocol for the World Wide Web. The Web is not synonymous with 
the Internet; rather, it is just one service on the Internet. Other services on 
the Internet include Internet Relay Chat and Newsgroups. The Web is 
accessed through use of a browser.

User-defined services are user specific services configured using known 
ports and applications.

Dest Port

This displays the port the selected service uses. Type a port number in the 
field provided if you want to use a different port to the default port.

Priority

Select a priority from the drop-down list box. 

Apply

Click Apply to save your changes back to the NBG-417N.

Cancel

Click Cancel to return to the previous screen.

Network > Wireless LAN > QoS: Application Priority Configuration (continued)