ZyXEL NBG-417N Manuale Utente

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)