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Introduction
7
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 follow-
ing 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.