ZyXEL Communications 1000 User Manual

Chapter 19 NAT

ZyWALL USG 1000 User’s Guide

NAT is also known as virtual server, port forwarding, or port translation.

• See 

 for related information on these screens.

• See 

 for technical background information related to 

these screens.

• See 

 for an example of how to configure NAT to allow 

H.323 traffic from the WAN to the LAN.

• See 

 for an example of how to configure NAT to allow 

web traffic from the WAN to a server on the DMZ.

• See 

 for an example of how to configure NAT to allow 

SIP traffic from the WAN to an IPPBX or SIP server on the DMZ.

The NAT summary screen provides a summary of all NAT rules and their 
configuration. In addition, this screen allows you to create new NAT rules and edit 
and delete existing NAT rules. To access this screen, login to the Web Configurator 
and click Configuration > Network > NAT. The following screen appears, 
providing a summary of the existing NAT rules.

Figure 291   Configuration > Network > NAT  

The following table describes the labels in this screen. 

Table 97   Configuration > Network > NAT

Add

Click this to create a new entry.

Edit

Double-click an entry or select it and click Edit to open a screen where 
you can modify the entry’s settings.