An alarm is a firewall-generated message indicating that the number of events of a particular type (for example, encryption and decryption failures) has exceeded the threshold configured for that event type. To enable alarms and configure alarm thresholds, select DeviceLog Settings and edit the Alarm Settings.

When generating an alarm, the firewall creates an Alarm log and opens the System Alarms dialog to display the alarm. After you Close the dialog, you can reopen it anytime by clicking Alarms (   ) at the bottom of the web interface. To prevent the firewall from automatically opening the dialog for a particular alarm, select the alarm in the Unacknowledged Alarms list and Acknowledge the alarm.