ZyXEL Communications Prestige 128IMH, User Manual

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ZyXEL Prestige 128IMH User’s Guide
Page 5-6
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5.4.1. Configuring a Server behind SUA
Follow the steps below to configure a server behind SUA
:
1. Enter
15
in the main menu to go to menu 15, Multiple Server Configuration.
2. Enter an index number in menu 15 to go to menu 15.1, SUA Server Configuration.
3. Enter the service port number in the Port # field and the inside IP address of the server
in the IP Address field.
4. Press
ENTER
at the “Press ENTER to confirm … ” prompt to save your configuration
after you define all the servers or press ESC at any time to cancel.
The most often used port numbers are:
Services Port Number
FTP 21
TELNET 23
SMTP 25
DNS(Domain Name System) 53
HTTP (WWW Web) 80
PPP 1723
Table 5-1 Services vs. Port number