FortiGate diagnose sniffer packet
Capture and inspect packets directly on a FortiGate to determine whether traffic enters, exits, or crosses expected interfaces.
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snifferFortiToken activation email fails: FortiGate SMTP local-out source IP
Troubleshoot FortiToken enrollment emails that time out on SMTP TCP/465 when FortiGate local-out traffic uses an unsuitable WAN source address.
FortiClient IKEv2 VPN fails after partial XML import: missing PSK
Diagnose an IKEv2 connection failure after importing a sanitized FortiClient XML profile that omits the pre-shared key.
FortiGate diagnose debug flow
Use FortiGate debug flow to trace how traffic is processed, routed, NATed, accepted, or denied by FortiOS.
FortiGate diagnose vpn tunnel list
Inspect FortiGate IPsec tunnel security associations, selectors, state, and packet counters from the CLI.
FortiGate execute ping and ping-options
Use FortiGate ping and ping-options to test IP reachability with controlled source, interface, timeout, packet size, and SD-WAN behaviour.
FortiGate get router info routing-table all
Display the active FortiGate routing table and interpret connected, static, dynamic, and default routes during connectivity troubleshooting.
FortiGate get system arp
Display the FortiGate ARP table to map IPv4 addresses to learned MAC addresses and interfaces during local-network troubleshooting.
FortiGate IPsec tunnel is up but traffic does not pass
Systematically troubleshoot a FortiGate IPsec tunnel that is established but does not carry the expected application or subnet traffic.