ZyXEL Communications 2 Plus User Manual

 Chapter 9 DMZ Screens

ZyWALL 2 Plus User’s Guide

The following table describes the labels in this screen.

IP alias allows you to partition a physical network into different logical networks over the 
same Ethernet interface. 
The ZyWALL has a single DMZ interface. Even though more than one of ports 1~4 may be in 
the DMZ port role, they are all still part of a single physical Ethernet interface and all use the 
same IP address.
The ZyWALL supports three logical DMZ interfaces via its single physical DMZ Ethernet 
interface. The ZyWALL itself is the gateway for each of the logical DMZ networks.
The IP alias IP addresses can be either private or public regardless of whether the physical 
DMZ interface is set to use a private or public IP address. Use NAT if you want to make DMZ 
computers with private IP addresses publicly accessible (see 

information). When you use IP alias, you can have the DMZ use both public and private IP 
addresses at the same time.

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Make sure that the subnets of the logical networks do not overlap.

To change your ZyWALL’s IP alias settings, click NETWORK > DMZ > IP Alias. The 
screen appears as shown.

Table 39   NETWORK > DMZ > Static DHCP

#

This is the index number of the Static IP table entry (row).

MAC Address

Type the MAC address of a computer on your DMZ.

IP Address

Type the IP address that you want to assign to the computer on your DMZ.
Alternatively, click the right mouse button to copy and/or paste the IP address.

Apply

Click Apply to save your changes back to the ZyWALL.

Reset

Click Reset to begin configuring this screen afresh.