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Vigor3300 Series User’s Guide
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The firewall controls the allowance and denial of packets through the router. The
Firewall Setup in the Vigor 3300 Series mainly consists of packet filtering, Denial of Service
(DoS) and URL (Universal Resource Locator) content filtering facilities. These firewall filters
help to protect your local network against attack from outsiders. A firewall also provides a
way of restricting users on the local network from accessing inappropriate Internet content and
can filter out specific packets, which may trigger unexpected outgoing connection such as a
Trojan.
The following sections will explain how to configure the Firewall. Users can select General
Setup, IP Filter, DoS and URL Filter options from Firewall menu. The DoS facility can
detect and mitigate the DoS attacks. The URL Filter can block inappropriate websites for
SME.
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First, you should create at least one Group in the IP Filter >> Group Table. Then you can
enable the Data Filter and select a Start Filter Group in General Setup. The following
sections explain IP Filter functions with details.
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The page allows you to set general settings such as enabling the data filter function and
choosing proper filter group.