Firewall & Dmz - D-Link DIR-457U User Manual

Section 5 - WEB Configuration
A firewall protects your network from intrusion and other malicious actions from the public Internet or WAN. The D-Link DIR-457U offers a
Firewall type functionality. It might be desirable disable firewall protection for a LAN client running certain application that are incompatible
with the firewall. If you choose to expose a single system, you can enable DMZ for one IP address on the private network. DMZ is short
for Demilitarized Zone. This option will expose the chosen system and make it visible on the Internet.
This is enabled by default. To disable the Firewall,
Enable WAN to
click to remove the check mark.
LAN Firewall:
Check the DMZ Enable box and specify the IP
DMZ Host:
address of the computer on the LAN that you
want to have unrestricted Internet communication
in the DMZ IP Address field.
Schedule: Select a schedule for when the DMZ will be
enabled from the drop-down menu or click
the New Schedule button to configure a new
schedule.
Firewall Rules:
Use this section to select rules used for the
Firewall. The rule options include some of the
commonly used methods of attack and port
scanning. The service filters for FTP, Telnet
and Ping from the WAN are not enabled by
default. If these are enabled these services will
be unavailable from the WAN.
Click the Save Settings button at the top or bottom of the
window to save the Firewall settings.
D-Link DIR-457U User Manual
Firewall & DMZ
70