User's Manual

AMG1202-T10A User’s Guide 143
CHAPTER 11
Filters
11.1 Overview
This chapter introduces three types of filters supported by the ZyXEL Device. You can configure
rules to restrict traffic by IP addresses, MAC addresses, application types and/or URLs.
11.1.1 What You Can Do in the Filter Screens
•Use the URL Filter screen (Section 11.2 on page 144) to block access to web sites.
•Use the Application Filter screen (Section 11.3 on page 145) to allow or deny traffic from
certain types of applications.
•Use the IP/MAC Filter screen (Section 11.4 on page 146) to create IP/MAC filter rules.
11.1.2 What You Need to Know About Filtering
URL
The URL (Uniform Resource Locator) identifies and helps locates resources on a network. On the
Internet the URL is the web address that you type in the address bar of your Internet browser, for
example “http://www.zyxel.com”.
IP/MAC Filter Structure
An IP/MAC filter set consists of one or more filter rules. The ZyXEL Device allows you to configure
up to twelve filter sets with six rules in each set, for a total of 72 filter rules in the system.