Chapter 4 Firewall
STEP 3 In the Filtering Action table, configure the behavior for web filter events. This configuration determines how the device handles logging for blocked web requests. Select one of the follow- ing:
•To block requests without creating entries in the Firewall Block Log even if the web filter firewall rule has logging enabled, select Block Only.
•To permit the requests and record them in the Firewall Block Log, select Log Only.
•To both block the requests and log any attempts in the Firewall Block Log, select Block and Log.
STEP 4 In the Default Rule table, configure the behavior to handle web requests for sites that are not covered by filters in the Web Filter Service or the Custom Filter list. Select one of the following:
•To allow these requests, select Allow unclassified or unknown sites.
•To filter these requests, select Filter unclassified or unknown sites.
STEP 5 To display a custom message (in addition to the standard access blocked message) when a web request is blocked by a web filter:
•Type the message in HTML in the Custom Response Page section.
•Click 
Preview to check that the message displays correctly.
STEP 6 Click Apply to save and apply the general filtering configuration.
Web Filter Service
The Web Filter Service is a subscription content filtering service that provides web content filtering based on web site classifications. This service is operated in partnership with SurfControl, a leading provider of content filtering solutions. The URL database has over 5 million entries and contains URLs
90 X Family LSM User’s Guide V 2.5.1