Configure Hosts / Ports to specify the network traffic that Deep Discovery Inspector monitors. Scan all traffic in your network or traffic through specified segments of your network.

Deep Discovery Inspector monitors all network traffic by default.

Monitoring specific network traffic on portions of a network can significantly reduce the number of threat- and event-related detections. For example, to scan inbound and outbound email traffic, select Monitor specific IP ranges and/or ports and then add a rule with the following settings: