6 dmz – Zoom X4 User Manual
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X4 ADSL Modem User’s Manual
2.6 DMZ
In certain instances, you may want to give one computer on your
LAN unrestricted Internet access. For example, you may want to
use an application such as NetMeeting that uses dynamic ports. Or
you may want to use the computer to play games over the Internet,
and you want others to be able to initiate games with you. Without
a DMZ, you would always have to be the one to initiate a game. A
DMZ configuration allows the computer to accept all incoming
packets that it has solicited.
CAUTION! Use the DMZ feature with the utmost care. It
exposes the DMZ computer’s entire contents to the
Internet; there is no firewall protection whatsoever.
To enable the X4’s DMZ feature, follow these steps.
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From the Advanced Setup page, click the DMZ button.
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Select Enable from the DMZ dropdown list, then click Save
Changes and Write Settings to Flash and Reboot.
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You need to enter the DMZ Host IP address. To obtain this
address, navigate to the LAN Settings page by returning to
the Advanced Setup page and clicking the LAN Settings
button. You’ll see the defined starting and ending IP address
range; for example, 10.0.0.3 and 10.0.0.14. Your DMZ Host IP
Address should be a static IP address outside of this range—
say, 10.0.0.15.