An intermittent connectivity issue is noticed between two devices located behind the FortiGate dmz and internal interfaces. A continuous sniffer trace is run on the FortiGate unit that the…

Capturing `any` traffic without a filter is inappropriate for a high-volume network as it will produce an excessively large and difficult-to-analyze trace file that is mostly irrelevant.

Limiting the capture to only the `dmz` interface will miss traffic potentially traversing the `internal` interface or other interfaces involved in the communication path between the two devices and lacks a host-specific filter.

This command efficiently captures only the relevant traffic by filtering for communication specifically between the two identified hosts, `192.168.1.100` and `192.168.10.100`, across all interfaces (`any`). Verbosity level `3` ensures that both packet headers and data are captured, which is necessary for comprehensive offline analysis using a sniffer application.

While verbosity level `4` also captures packet data, level `3` is usually sufficient for off-line analysis by including headers and data, often preferred to level `4` for a smaller file size when interface information is not critical for host-to-host troubleshooting.