ZyXEL Communications NBG4615 User Manual

NBG4615 User’s Guide

This chapter provides a brief overview of content filtering using the embedded web GUI.

Internet content filtering allows you to create and enforce Internet access policies tailored to your 
needs. Content filtering is the ability to block certain web features or specific URL keywords.

The following terms and concepts may help as you read through this chapter.

Content filtering allows you to block certain web features, such as cookies, and/or block access to 
specific web sites. For example, you can configure one policy that blocks John Doe’s access to arts 
and entertainment web pages.

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

The NBG4615 checks the URL’s domain name (or IP address) and file path separately when 
performing keyword blocking. 

The URL’s domain name or IP address is the characters that come before the first slash in the URL. 
For example, with the URL 

www.zyxel.com.tw/news/pressroom.php

, the domain name is 

www.zyxel.com.tw

.

The file path is the characters that come after the first slash in the URL. For example, with the URL 

www.zyxel.com.tw/news/pressroom.php

, the file path is 

news/pressroom.php

.

Since the NBG4615 checks the URL’s domain name (or IP address) and file path separately, it will 
not find items that go across the two. For example, with the URL 

www.zyxel.com.tw/news/

pressroom.php

, the NBG4615 would find “tw” in the domain name (

www.zyxel.com.tw)

. It would 

also find “news” in the file path (

news/pressroom.php

) but it would not find “tw/news”.