Prestige 201 ISDN Access Router

Table 3-5 Single User Account Menu Fields

Field

Description

 

 

Single User Account

Select Yes to enable SUA.

 

 

IP Addr.

If your ISP did not assign you a static IP address, enter

 

[0.0.0.0] here; otherwise, enter that IP address here.

 

 

Press [Enter] at the message [Press ENTER to Confirm ...] to save your configuration, or press [Esc] at any time to cancel.

At this point, your Prestige will ask if you wish to test the Internet connection. If you select Yes, the Prestige will call the ISP and test the configuration. If the test fails, note the error messages on the screen and take the appropriate troubleshooting steps.

3.6Multiple Servers behind SUA

If you wish, you can make inside servers for different services, e.g., web or FTP, visible to the outside users, even though SUA makes your whole inside network appear as a single machine to the outside world. A service is identified by the port number, e.g., web service is on port 80 and FTP on port 21.

As an example, if you have a web server at 192.168.1.2 and an FTP server 192.168.1.3, then you need to specify for port 80 (web) the server at IP address 192.168.1.2 and for port 21 (FTP) another at IP address 192.168.1.3.

Please note that a server can support more than one service, e.g., a server can provide both FTP and DNS service, while another provides only web service. Also, since you need to specify the IP address of a server in the Prestige, a server must have a fixed IP address and not be a DHCP client whose IP address potentially changes each time it is powered on.

In addition to the servers for specific services, SUA supports a default server. A service request that does not have a server explicitly designated for it is forwarded to the default server. If the default server is not defined, the service request is simply discarded.

To make a server visible to the outside world, specify the port number of the service and the inside IP address of the server in Menu 15 - SUA Server Setup.

3.6.1 Configuring a Server behind SUA

Follow the steps below to configure a server behind SUA:

3-12

Internet Access

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ZyXEL Communications P-202 Multiple Servers behind SUA, Configuring a Server behind SUA, Single User Account Menu Fields