User's Manual

GAN5.PT156A-B
59
5.2.6 Security
By default, the firewall is enabled. The firewall is used to block the file transmission
between the Internet and your PC. It serves as a safety guard and permits only the
authorized files to be sent to the LAN.
Note:
If the DSL router is configured to be bridge mode, IP filtering is disabled and the IP
filtering interface does not appear.
Firewall
Choose Security > Firewall and the following page appears.
Click Modify Firewall or Remove Firewall to modify or remove the firewall. And
click Modify Rule or Remove Rule to modify or remove the rule.
Click Add Firewall, and the following page appears.
name: The name of the firewall.
interface: You can select a proper interface from the drop-down list.
type: You can select In or Out from the drop-down list.
defaultaction: You can select Permit or Drop from the drop-down list.