ARRIS WTM552 User Guide - Manual (Page 44)

Touchstone® WTM552 Telephony Modem User’s Guide 44
Getting Battery Wireless Ethernet
Safety Started Installation Installation Configuration Configuration Usage Troubleshooting Glossary
Configuring the DMZ
Certain Internet applications, such as gaming or video conferencing, may not work
properly with computers behind a firewall. For these situations, the Telephony Mo-
dem supports a “DMZ” feature that lets you place a single PC outside the firewall.
Note: A computer placed in the DMZ is not protected from attackers. Enable
the DMZ only when necessary and make sure the computer in the DMZ
has the latest security updates installed.
Follow these steps to place a computer in the DMZ.
1 Click the Firewall link in the navigation menu, then click DMZ.
The DMZ window appears.
2 Enter the IP address of the computer that you want to place in the DMZ in
the Private IP field.
3 Check the Enable box.
4 Click the Save button to save your changes.
The DMZ light on the Telephony Modem front panel lights up to remind you
that your computer is operating without firewall protection.
5 When you are finished using the DMZ, return to this screen, remove the
check from the Enable box, and click the Save button.
The DMZ light on the Telephony Modem front panel turns off.
6 Proceed to Configuring DDNS .