48
Action
tec USB/Ethernet DSL Gateway User Manual
49
Chapter 4
Using Advanced Setup
In this screen, the user can allow only certain
IP
addresses to access forwarded
ports. Enter the port range of the forwarded ports in the “Remote
IP
Port
Range” text boxes, enter the
IP
address to be allowed access in the “Remote
IP
Address” text box, then click “Add.” The active forwarded ports will appear in
the “List of Forwarded Ports” text box.
To deactivate a forwarded port, select it from the “List of Forwarded Ports” text
box, then click “Remove.”
DMZ Hosting
Selecting
DMZ
Hosting
in the “Advanced Configuration” screen generates the
“
DMZ
Hosting” screen. To use
DMZ
hosting, enter the
IP
address of the computer
on the network to be used as a
DMZ
host in the “
DMZ
Host
IP
Address” text box,
then click
On
.
DMZ
hosting is used to support online gaming and Internet conferencing services.
These programs usually require multiple open ports, making the network acces-
sible from the Internet.
DMZ
hosting symbolically places the
DMZ
host computer
outside of the Gateway’s network. Access to the network resources while
DMZ
hosting is active is blocked.
Action
tec recommends activating
DMZ
hosting only as
long as necessary.
M
Warning
:
The
DMZ
Host computer will be vulnerable to com-
puter hackers on the Internet while in
DMZ
mode.
Summary of Contents for DSL GATEWAY GT704
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