ZyXEL Communications P-660R-11V3 User Manual

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P-660R-T1 v3 User’s Guide
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H A P T E R
 
 15 
Filters
15.1  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.
15.1.1  What You Can Do in the Filter Screens
• Use the IP/MAC Filter screen (
) to create IP/MAC filter rules.
• Use the Application Filter screen (
) to allow or deny traffic 
from certain types of applications.
• Use the URL Filter screen (
) to block access to web sites.
15.1.2  What You Need to Know About Filtering
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.
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”.