Billion Electric Company VGP User Manual

Chapter 4: Configuration  

 

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. In addition to this, when using NAT 
(Network Address Translation. Please see the WAN configuration section for more details on 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. 

 

 

: Prevents access from outside your network. The router provides three levels of security 

support: 

: This masks LAN users’ IP addresses which are invisible to outside users on the 

Internet, making it much more difficult for a hacker to target a machine on your network. This natural 
firewall is on when NAT function is enabled. 

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: Inbound direction of Packet Filter rules to prevent 

unauthorized computers or applications accessing your local network from the Internet. 

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

: Prevents access from PCs on your local network: 

: Outbound direction of Packet Filter rules to prevent 

unauthorized computers or applications accessing the Internet. 

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

 

You can find six items under the Firewall  section: 

and