Controller Web Filtering

The Web-Filtering screen displays information on Web requests for content and whether the requests were blocked or approved based on URL filter settings defined for the selected controller or service platform. A URL filter is comprised of several filter rules. A whitelist bans all sites except the categories and URL lists defined in the whitelist. The blacklist allows all sites except the categories and URL lists defined in the blacklist.

To view Web filter statistics:

Select the Statistics menu from the Web UI.
Expand the System node from the navigation pane (on the left-hand side of the screen).
The System node expands to display the RF Domains created within the managed network.
Expand an RF Domain node, select a controller or service platform.
The selected device's statistics menu displays in the right-hand side of the screen, with the Health tab selected by default.
Select Web-Filtering.
The Statistics > Controller/AP > Web-Filtering screen is displayed.

Review the following Web-Filtering statistics:

The Web-Filtering Requests field displays the following:

Total Blocks	Lists the number of Web request hits against content blocked in the URL blacklist.
Total Requests	Lists the total number of requests for URL content cached locally on this controller or service platform.
Total URL Cache Entries	Displays the number of cached URL data entries made on this controller or service platform on the request of requesting clients requiring URL data managed by the controller or service platform and their respective whitelist or blacklist.

The Top Categories field helps administrators assess the content most requested, blocked and approved based on the defined whitelist and blacklist permissions:

Top Categories - Requested	Lists those Web content categories most requested by clients managed by this controller or service platform. Use this information to assess whether the permissions defined in the blacklist and whitelist optimally support these client requests for cached Web content.
Top Categories - Blocked	Lists those Web content categories blocked most often for requesting clients managed by this controller or service platform. Use this information to periodically assess whether the permissions defined in the blacklist and whitelist still restrict the desired cached Web content from requesting clients. Remember, a whitelist bans all sites except the categories and URL lists defined in the whitelist. The blacklist allows all sites except the categories and URL lists defined in the blacklist.
Top Categories - Approved	Lists those Web content categories approved most often on behalf of requesting clients managed by this controller or service platform. Periodically review this information to assess whether this cached and available Web content still adheres to your organization‘s standards for client access.

The Web Filter Status field displays the following information:

Name	Displays the name of the filter whose URL rule set has been invoked.
Blacklist Category	Lists the blacklist category whose URL filter rule set has caused data to be filtered to a requesting client. Periodically assess whether these rules are still relevant to the data requirements of requesting clients.
VLAN	Lists the impacted controller or service platform VLAN whose Web data traffic has been filtered based on the restrictions in the listed blacklist category.
WLAN	Lists the impacted controller or service platform WLAN whose Web data traffic has been filtered based on the restrictions in the listed blacklist category. Periodically assess whether clients are segregated to the correct WLAN based on their cached Web data requirements and impending filter rules.