Billion 810VGTX Router
Page | 57
When using Virtual Server, your PC will become exposed to a certain degree
to unknown users if specific ports are opened in the firewall packet filter
setting. The degree of exposure depends on the parameter set in the Virtual
Server setting.
Firewall and Access Control
Your router includes a full SPI (Stateful Packet Inspection) firewall to control Internet access on your network. This
feature also protects your system from being attacked by hackers. When using NAT, the router acts as a “natural”
Internet firewall, as all PCs on your LAN will have their own private IP address which is not directly accessible from the
Internet. 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 the NAT function
is enabled.
Firewall Security and Policy (General Settings): Inbound direction of Packet Filter rules to prevent unauthorized
computers or applications from accessing your local network from the Internet.
Intrusion Detection: Enable Intrusion Detection to detect, prevent and log malicious attacks.
Access Control: Prevent access from computers 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 computers on your local network from unwanted websites.
The items under the Firewall section are: General Settings, Packet Filter, Intrusion Detection, URL Filter, IM/P2P Blocking
and Firewall Log.