Symantec Web Gateway - Licensing

Hi,

I already have Symantec Protection Suite Enterprise edition license; this means that I have Symantec Web Gateway license.

When reading the Symantec Web Gateway 5.0 Getting Started Guide, it is mentioned "Symantec Web Gateway can block individual Web sites or categories of Web sites. To block Web sites by category, you must have the URL filtering license.

Does the Symantec Protection Suite Enterprise edition license include license for URL filtering or I need buy another license?

Thanks,

Arvind