ZyXEL Communications NBG334SH User Manual

Page 88

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Chapter 5 Wireless LAN

ZyXEL NBG-334SH User’s Guide

88

Service

The following is a description of the applications you can prioritize with WMM

QoS. Select a service from the drop-down list box.

E-Mail

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

FTP

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.

WWW

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

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 ZyXEL Device.

Cancel

Click Cancel to return to the previous screen.

Table 31 Application Priority Configuration (continued)

LABEL

DESCRIPTION

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