Draytek 5500 Series manual Web Filtering, Anti-Virus and Anti-Intrusion

Web Filtering

We all know that the content on the Internet just like other types of media may be inappropriate sometimes. As a responsible parent or employer, you should protect those in your trust against the hazards. With Web filtering service of the Vigor router, you can protect your business from common primary threats, such as productivity, legal liability, network and security threats. For parents, you can protect your children from viewing adult websites or chat rooms.

Once you have activated your Web Filtering service in Vigor router and chosen the categories of website you wish to restrict, each URL address requested (e.g.www.bbc.co.uk) will be checked against our server database, powered by SurfControl. The database covering over 70 languages and 200 countries, over 1 billion Web pages divided into 40 easy-to-understand categories. This database is updated as frequent as daily by a global team of Internet researchers. The server will look up the URL and return a category to your router. Your Vigor router will then decide whether to allow access to this site according to the categories you have selected. Please note that this action will not introduce any delay in your Web surfing because each of multiple load balanced database servers can handle millions of requests for categorization.

Anti-Virus and Anti-Intrusion

Users might have much more confidence about the security in the network for data transmission if the functions of anti-virus and anti-intrusion are activated. The VigorPro router offers the mechanism of anti-virus and anti-intrusion. What you have to do is to set the proper profiles and invoke them. The anti-virus profile and anti-intrusion configuration can be set in Anti-Virus menu (refer to section 3.7) and Anti-Intrusion menu (refer to section 3.6). However, the mechanism must be enabled either in Firewall>>General Setup or Firewall>>Filter Setup web page. After you choose proper Anti-Virus profile and check Anti-Intrusion box, the Anti-Virus and Anti-Intrusion LEDs on the front panel will light up.

Below shows the menu items for Firewall.

3.5.2 General Setup

General Setup allows you to adjust settings of IP Filter and common options. Here you can enable or disable the Call Filter or Data Filter. Under some circumstance, your filter set can be linked to work in a serial manner. So here you assign the Start Filter Set only. Also you can configure the Log Flag settings, Apply IP filter to VPN incoming packets, and Accept incoming fragmented UDP packets.

Important: When some packet does not fit the rule configured in Filter Setup web page, the filtering action configured in general setup web page will apply to that packet.

Click Firewall and click General Setup to open the general setup page.

60 VigorPro5500 Series User’s Guide