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Section 3 - Configuration
A firewall protects your network from the outside world. The DIR-140L offers a firewall type functionality. The SPI feature helps
prevent cyber attacks. Sometimes you may want a computer exposed to the outside world for certain types of applications.
If you choose to expose a computer, you can enable DMZ. DMZ is short for Demilitarized Zone. This option will expose the
chosen computer completely to the outside world.
Enable DMZ:
If an application has trouble working from behind the
router, you can expose one computer to the Internet and
run the application on that computer.
Note: Placing a computer in the DMZ may expose that
computer to a variety of security risks. Use of this option is
only recommended as a last resort.
DMZ IP Address:
Specify the IP address of the computer on the LAN that
you want to have unrestricted Internet communication. If
this computer obtains it's IP address automatically using
DHCP, be sure to make a static reservation on the Setup
> Network.Settings page so that the IP address of the
DMZ machine does not change.
Firewall Rules:
Choose whether to Allow or Deny the addresses you list
below.
Enter a name to identify the firewall rule.
Name:
Choose whether to Allow or Deny all of the rules listed
Action:
below.
Source:
Use the Source drop-down menu to specify the interface that connects to the source addresses of the firewall rule.
Schedule:
Use the drop-down menu to select the time schedule that the IPv6 Firewall Rule will be enabled on. The schedule may be set to
Always, which will allow the particular service to always be enabled. You can create your own times in the Maintenance > Schedules
section.
IP Address Range:
Enter the source IP Address range.
D-Link DIR-140L User Manual
Firewall Settings
47
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