ZyXEL Communications NBG-417N - V1.0 Manual page 90

Chapter 7 Wireless LAN
Network > Wireless LAN > QoS: Application Priority Configuration (continued)
LABEL
Service
Dest Port
Priority
Apply
Cancel
90
DESCRIPTION
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.
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.
Select a priority from the drop-down list box.
Click Apply to save your changes back to the NBG-417N.
Click Cancel to return to the previous screen.
NBG-417N User's Guide