ZyXEL Communications Internet Security Gateway ZyWALL 100 - Manual (Page 193)

ZyWALL 100 Internet Security Gateway
Content Filtering 18-1
Chapter 18
Content Filtering
This chapter provides a brief overview of content filtering using the web embedded configurator. For more
detailed information, consult the embedded HTML help.
Internet content filtering allows schools and businesses to create and enforce Internet access policies tailored
to their needs. Content filtering is the ability to block certain web features or specific URLs and should not
be confused with packet filtering via SMT menu 21.1. To access these functions, from the Main Menu,
click Advanced, then Content Filter to expand the Content Filter menus.
18.1 Categories
18.1.1 Restrict Web Features
The ZyWALL can block web features such as ActiveX controls, Java applets, cookies and disable web
proxies.
18.1.2 Filter List
The administrator can select categories, such as pornography or racial intolerance, to block or monitor
from a pre-defined list. There is a period of free use of the list when you register the ZyWALL. After
this period, you must subscribe to the list periodically.
18.1.3 Days and Times
The ZyWALL also allows the administrator to define time periods and days during which content
filtering should be enabled.
18.2 List Update
Content on the Internet is constantly changing, so the content filter list should be updated on a weekly
basis.
18.3 Exempt Computers
This link allows the administrator to include or exclude a range of users on the LAN from content
filtering.