Technical Tip: How to capture IGMP packet in FortiGate

Description

This article describes how to filter and capture the specific IGMP packet in the FortiGate.

Scope

FortiGate.

Solution

When there is an issue with IGMP and the packet capture at FortiGate needs to be done to filter or show only IGMP packets.

After accessing the CLI of the FortiGate at Dashboard or via SSH, then use the following CLI commands to do the packet capture for only IGMP packets.

Command to capture IGMP packets:

# diagnose sniffer packet any ' proto 2' 6 0  l