User's Manual

Chapter 4 Tutorial

P-2612HW Series User’s Guide

8 Go to the Status screen to check your WAN connection status. Make sure the

status is not down.

Figure 43 Tutorial Example: Status

4.3.3 Public IP Address Mapping

To have the local computers and servers use specific WAN IP addresses, you need

to map static public IP addresses to them.

Note: The one-to-one NAT address mapping rules are for both incoming and outgoing

connections. The ZyXEL Device forwards traffic that is initiated from either the

LAN or the WAN to the destination IP address.

Note: The many-to-one or many-to-many NAT address mapping rules are for

outgoing connections only. That means only traffic initiated from the LAN or

returned packets are allowed to go through the ZyXEL Device.

In this example, you create two one-to-one rules to map the internal web server

(192.168.1.12) and mail server (192.168.1.13) to different static public IP

addresses. The many-to-one rule maps a public IP address (1.2.3.4, that is, the

ZyXEL Device’s WAN IP address) to outgoing LAN traffic. It allows other local