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About the Content Filtering Events Page

To access this page, click Monitor > Security Events > Content Filtering.

Use this page to view information about security events based on content filtering policies. The event viewer provides a view of all content filtering events and how the events are handled by content filter. This page can be used to view traffic on the network in real time or as a debugging tool to view how content filtering is operating.

Content filtering provides basic data loss prevention functionality. Content filtering screens traffic based on MIME type, file extension, protocol commands, and embedded object type. It either permits or blocks specific commands or extensions on a protocol-by-protocol basis.

Using the time-range slider, you can quickly focus on the area of activity that you are most interested in. Once the time range is selected, all of the data presented in your view is refreshed automatically. You can also use the Custom button to set a custom time range.

There are two ways to view your data. You can select either the Summary View tab or the Detail View tab.

Tasks You Can Perform

You can perform the following tasks from this page:

  • View a brief summary of all the content filtering events in your network. See Summary View.

  • View the comprehensive details of events in a tabular format that includes sortable columns. See Detail View.

Summary View

The top of the page has a swim lane graph of all the content filtering events against the blocked events. You can use the widgets at the bottom of the page to view critical information such as top blocked protocol commands, top reasons, and top sources.

Table 1 describes the widgets on the Summary View page.

Table 1: Widgets on the Summary View Page



Top Blocked Protocol commands

View the top command names or file extensions blocked on a protocol-by-protocol basis.

Top Reasons

View the top reasons for blocking the content. For example: Inappropriate or harmful communication.

Top Sources

View the top source IP addresses of the network traffic; sorted by event count.

Detail View

You can aggregate the events using the Group By option. For example, you can group the events based on source country. The table includes information such as the event name, Content Security category, source IP address, source country, and so on.

Table 2 provides guidelines on using the fields on the Detail View page.

Table 2: Fields on the Detail View Page




View the time when the event occurred.

Event Name

View the event name of the log.

Source Country

View the source country name from where the event originated.

Source IP

View the source IP address from where the event occurred (IPv4 or IPv6).


View the description of the log.

Content Security Category or Virus Name

View the Content Security category of the log: enhanced, local, and redirect.


View the accessed URL name that triggered the event.


View the type of traffic. For example, FTP and HTTP.


View the action taken for the event: warning, allow, and block.

Log Source

View the IP address of the log source (IPv4 or IPv6).

Host Name

View the hostname in the log.

Source Zone

View the user traffic received from the zone.


View the role names associated with the event.


View the reason for the log generation. For example, unrestricted access

Profile Name

View the name of the content filtering profile that triggered the event.