Content Filtering; Chapter 35 Content Filtering; Content Filtering Overview; External Web Filtering Service - ZyXEL Communications ZYWALL USG Series Reference Manual

This chapter covers how to use the content filtering feature to control web access.

35.1 Content Filtering Overview

Content filtering allows you to block certain web features, such as cookies, and/or block access to
specific web sites. It can also block access to specific categories of web site content. You can create
different content filtering policies for different addresses, schedules, users or groups and content
filtering profiles. For example, you can configure one policy that blocks John Doe's access to arts
and entertainment web pages during the workday and another policy that lets him access them
after work.

35.2 External Web Filtering Service

When you register for and enable the external web filtering service, your ZyWALL / USG accesses
an external database that has millions of web sites categorized based on content. You can have the
ZyWALL / USG block, block and/or log access to web sites based on these categories.

35.3 Content Filtering Reports

See the web configurator User's Guide to see how to view content filtering reports after you have
activated the category-based content filtering subscription service.
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