Firewall And Access Control - Billion 800VGT User Manual

Firewall and Access Control

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, 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: Prevents access from outside your network. The router provides three levels of security
support:
NAT natural firewall: This masks LAN users' IP addresses making them invisible to outside users on the
Internet, thus making it much more difficult for a hacker to target any machine on your network. This
natural firewall is on when NAT function is enabled.
When using the Virtual Servers function, your PCs will be exposed to the
degree specified in your Virtual Server settings, provided that the ports
specified are opened in your firewall packet filter settings.
Firewall Security and Policy (General Settings): Inbound direction of Packet Filter rules to prevent
unauthorized WAN computers or applications accessing your local network from the Internet.
Intrusion Detection: Enable Intrusion Detection to detect, prevent and log malicious attacks.
Access Control: Prevents access from computers on your local network:
Firewall Security and Policy (General Settings): Outbound direction of Packet Filter rules to prevent
unauthorized LAN computers or applications accessing the Internet.
URL Filter: Blocks computers on your local network from unwanted websites.
Here are the items within the Firewall section:
URL Filter, IM/P2P Blocking
Chapter 4: Configuration
General Settings, Packet Filter, Intrusion Detection,
and Firewall Log.
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