Billion 7404v Guía Del Usuario

Your router includes a full SPI (Stateful Packet Inspection) firewall for controlling Internet access 

from your LAN, as well as helping to prevent attacks from hackers. Besides, when using NAT, the 

router acts as a “natural” Internet firewall, as all PCs on your LAN will use private IP addresses 

that cannot be directly accessed from the Internet.

Firewall: Prevent outsiders from accessing your local network. The router provides three levels of 

security support:

NAT natural firewall: This masks LAN users’ IP addresses which are invisible to users on the 

Internet, thus making it more difficult for a hacker to target a machine on your network. This natural 

firewall is turned on when NAT function is enabled.

Firewall Security and Policy (General Settings): Inbound direction of Packet Filter rules to 

prevent unauthorized computers or applications to access your local network from the Internet.

Intrusion Detection: Enable Intrusion Detection to detect, prevent and log malicious attacks.

Access Control: Prevent access from PCs on your local network:

Firewall Security and Policy (General Settings): Outbound direction of Packet Filter rules to 

prevent unauthorized computers or applications from accessing the Internet.

URL Filter: To block PCs on your local network from unwanted websites.

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