Chapter 12 Network Address Translation (NAT) Screens

12.3.3 Configuring Servers Behind SUA (Example)

Let's say you want to assign ports 21-25 to one FTP, Telnet and SMTP server (A in the example), port 80 to another (B in the example) and assign a default server IP address of 192.168.1.35 to a third (C in the example). You assign the LAN IP addresses and the ISP assigns the WAN IP address. The NAT network appears as a single host on the Internet.

IP address assigned by ISP.

Figure 44 Multiple Servers Behind NAT Example

12.4 Selecting the NAT Mode

Click NAT to open the following screen.

Figure 45 NAT Mode

The following table describes the labels in this screen.

Table 22 NAT Mode

LABEL

DESCRIPTION

None

Select this radio button to disable NAT.

 

 

SUA Only

Select this radio button if you have just one public WAN IP address for your ZyXEL

 

Device. The ZyXEL Device uses Address Mapping Set 1 in the NAT - Edit SUA/NAT

 

Server Set screen.

 

 

Edit Details

Click this link to go to the NAT - Edit SUA/NAT Server Set screen.

 

 

Full Feature

Select this radio button if you have multiple public WAN IP addresses for your ZyXEL

 

Device.

 

 

96

 

P-660RU-T v2 User’s Guide