Netgear STM300 STM 150-300-600 Reference Manual (PDF) - Page 116

ProSecure Web/Email Security Threat Management (STM) Appliance Configuring Web URL Filtering If you want to allow or block internal LAN users from access to certain sites on the Internet, use the STM's Web URL filtering. You can create or import a whitelist that contains domain names and URLs that are accepted, and a blacklist with domain names and URLs that are blocked. The whitelist takes precedence over the blacklist. Note: A URL that you enter on the whitelist or blacklist might contain other embedded URLs such as URLs for advertisements or sponsors, causing unexpected behavior. If you want to allow a URL by placing it on the whitelist, make sure that all embedded URLs are also placed on the whitelist. Similarly, if you want to block a URL by placing it on the blacklist, make sure that all embedded URLs are also placed on the blacklist. Note: For information about creating custom categories that allow you to set access exceptions for combinations of URLs, see Creating Custom Categories for Web Access Exceptions on page 142. 116 | Chapter 4. Content Filtering and Optimizing Scans