D-Link DIR-809 - Firewall Settings

98D-Link DIR-809 User Manual
Section 3 - Conguration
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Firewall Settings
FIREWALL & DMZ SETTINGSFIREWALL SETTINGS
DIR-809
ADVANCED
Enable SPI: Enable or disable the Stateful Packet Inspection (SPI) firewall.
Disabling the rewall is not recommended.
FIREWALL SETTINGS
FIREWALL & DMZ SETTINGS
DMZ means "Demilitarized Zone". DMZ allows computers behind the router rewall to be accessible to Internet trafc.Typically, your
DMZ would contain Web servers, FTP servers and others.b
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FIREWALL SETTINGS
Enable SPI :
☑
APPLICATION LEVEL GATEWAY (ALG) CONFIGURATION
PPTP :
☑
IPSec (VPN) :
☑
RTSP :
☑
SIP :
☑
ANTI-SPOOF CHECKING
Enable anti-spoof checking :
☑
DMZ HOST
The DMZ (Demilitarized Zone) option lets you set a single computer on your network outside of the router.If you have a computer that
cannot run Internet applications successfully from behind the router, then you can place the computer into the DMZ for unrestricted
Internet access.
Note:Putting 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.
Enable DMZ :
☑
DMZ IP Address : <<
Computer Name
▼
Enable anti-spoof
checking:
Enable or disable anti-spoof checking.
ANTISPOOF CHECKING
This option allows you to manually congure the router’s demilitarized zone (DMZ). The
DMZ should only be used as a last resort when you are having diculty using other port
forwarding tools since the device using this IP address is not protected by the rewall. If
you use DMZ, take measures such as client-based virus protection to protect the remaining
client PCs on your LAN from possible attacks through DMZ’d device.
Enable DMZ: Check the box to enable the DMZ function.
DMZ Host IP
Address:
Enter the IP address of the machine that you wish to place in the DMZ.
If the machine receives an IP address from the DHCP server, you should
create a static DHCP reservation to ensure that the machine always
receives the same address from the DHCP server. Use the Computer
Name dropdown menu and the << button to quickly select a device.
The IP address is automatically populated.
DMZ HOST
Click Firewall Settings on the navigation menu to congure the Firewall Settings. When
you are satised with your conguration, click Save Settings.