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PLANET ADSL VPN / Firewall Router
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users from accessing the Internet. The functions include:
1. Firewall: prevent access from an outside network, the router provides three levels of
security support.
l NAT natural firewall: it 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.
l Firewall Security and Policy (General Settings): inbound direction of Packet Filter
rules to prevent unauthorized computers or applications accessing the local
network.
l Intrusion Detection: Enable Intrusion Detection to detect, prevent and log
malicious attacks.
2. Access Control: prevent access from a local network.
l Firewall Security and Policy (General Settings): outbound direction of Packet
Filter rules to prevent unauthorized computers or applications accessing the
Internet.
l MAC Filter rules: to prevent unauthorized computers accessing the Internet
l URL Filter: to block the unwanted websites from accessing inappropriate material
from the local network.
To prevent unauthorized computers access to the Internet and local network, you can
either choose not to enable Firewall, add the MAC address and URL filter rules by
yourself, or enable the Firewall and modify the packet filter rules if required. The Packet
Filter is categorized as Port Filters and Address Filters, configured to filter the packets
based-on Applications (Port) and IP addresses of the computers respectively.
There are five items under the Firewall section: General Settings, Packet Filter,
Intrusion Detection, MAC Address Filter and URL Filter.
3.6.3.4.1 General Settings
When you click General Settings, you get the following figure.