ZyXEL Communications P-660RU-T V2 User Manual

Chapter 12 Network Address Translation (NAT) Screens

P-660RU-T v2 User’s Guide

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

Click NAT to open the following screen.  

Figure 45   NAT Mode

The following table describes the labels in this screen.

Table 22   NAT Mode

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.