Introduction

Using the DMZ Port

The DMZ port is intended for connection of a server you wish to make available to the public. To use multiple servers, use a standard LAN cable to connect the DMZ port to a normal port on another hub, and connect your servers to the hub.

Please note the following points regarding the DMZ port.

∙Although physically attached to the hub ports, the DMZ port is not part of the built-in hub. It is a separate single port which is isolated from the hub.

∙PCs connected to the DMZ port are on the same LAN segment as PCs connected to the Hub ports. They must use the same IP address range.

∙PCs connected to the DMZ port are NOT visible to PCs on the hub (LAN) ports. So you cannot use Microsoft networking or other networking protocols to connect to PCs on the DMZ. The connection must be made via the Internet.

∙PCs connected to the DMZ port still share the WAN port IP address for Internet access.

∙To make PCs on the DMZ port available from the Internet, the "Virtual Server" (Port Forwarding) feature must be configured to send incoming traffic to the appropriate server.

Advantages of the DMZ Port

If running any Servers on your LAN, you should connect them to the DMZ port, for the following reasons:

∙Traffic passing between the DMZ and LAN passes through the firewall. The firewall will protect your LAN if your Server is compromised and used to launch an attack on your LAN.

∙When using the Virtual Servers feature, (see Virtual Servers in Chapter 6) a firewall rule to allow incoming traffic from the Internet (WAN) to the DMZ is automatically created.

If the Server is connected to the LAN (hub) ports, you must add the firewall rule manually.

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