Firewall Events and Logs Overview
Use the Firewall Events page to view information about security events based on firewall policies. Analyzing firewall logs yields useful security management information, such as attempts to breach your network and observing the inherent characteristics of your traffic in real time. Using the time-frame 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.
By default, you can view data for all the devices. To view data for a specific device, click on the link beside Devices and select a device.
There are two ways to view your data. You can select either the Summary tab or the Details tab.
Firewall Events—Summary View
Click Summary View for a brief summary of all the firewall events in your network. The data presented in the line graph (also known as swim lanes) is refreshed automatically based on the selected time range. The line graph shows light blue lanes that represent all firewall events and dark blue lanes represent blocked firewall events.
Below the swim lanes are widgets displaying critical information such as top sources, top destinations, top users, and top reporting devices. See the Firewall Events Summary Widgets for the descriptions of the elements appearing in this view.
See Table 1 for descriptions of the widgets in this view.
Table 1: Widgets in Summary View
Top source IP addresses of the network traffic; sorted by event count.
Top destination IP addresses of the network traffic; sorted by event count.
Top users of the network traffic; sorted by event count.
Top Reporting Devices
Top reporting devices in the network; sorted by event count.
Firewall Events—Details View
Click the Details View for comprehensive details of events in a tabular format that includes sortable columns. The table includes information such as the rule that caused the event, severity for the event, event ID, traffic information, and how and when the event was detected.
The Legacy Node option is displayed in the event viewer after the legacy log collector node is added on the Logging Nodes page. We’ve added the legacy log collector support only for read only purpose to view existing log collector data. New logs should point to Security Director Insights VM as the log collector. Select the Legacy Node checkbox to view the existing log collector data. When you clear the Legacy Node checkbox, Security Director Insights log collector data is displayed.
See Table 2 for descriptions of the columns in this view.
Table 2: Columns in Detail View
The time when the log was received.
The event name of the log.
Source country name from where the event originated.
The source IP address from where the event occurred.
The destination country name from where the event occurred.
The destination IP address of the event.
The source port of the event.
Destination port of the event.
The description of the log.
Policy name in the log.
The username of the log.
Action taken for the event: warning, allow, and block.
IP address of the log source (IPv4 or IPv6).
The application name from which the events or logs are generated.
The host name in the log.
The name of the application service. For example, FTP, HTTP, SSH, and so on.
The nested application in the log.
User traffic received from the zone.
The destination zone of the log.
The protocol ID in the log.
Role names associated with the event.
NAT Source Port
The translated source port.
NAT Destination Port
The translated destination port.
NAT Source Rule Name
The NAT source rule name.
NAT Destination Rule Name
The NAT destination rule name.
NAT Source IP
The translated (or natted) source IP address. It can contain IPv4 or IPv6 addresses.
NAT Destination IP
The translated (also called natted) destination IP address.
Traffic Session ID
The traffic session ID of the log.
The rule name of the log.