ZyXEL Communications ZyWALL 300 User Manual

ZyWALL USG 300 User’s Guide

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

 for related information on these screens.

Content filter 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 filter policies for different addresses, schedules, users or groups and 
content filter 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.

A content filter policy allows you to do the following.

• Use schedule objects to define when to apply a content filter profile.

• Use address and/or user/group objects to define to whose web access to apply the content 

filter profile.

• Apply a content filter profile that you have custom-tailored. 

A content filter profile conveniently stores your custom settings for the following features.

The ZyWALL can block access to particular categories of web site content, such as 
pornography or racial intolerance.

The ZyWALL can disable web proxies and block web features such as ActiveX controls, Java 
applets and cookies.

You can specify URLs to which the ZyWALL blocks access. You can alternatively block 
access to all URLs except ones that you specify. You can also have the ZyWALL block access 
to URLs that contain particular keywords.