FortiGate devices withNP6 (Network Processor 6) accelerationoffload traffic directly to hardware, bypassing the CPU for improved performance. Whenauto-asic-offloadis enabled in a firewall policy, most of the trafficdoes not reach the CPU, which means it won't be captured by the standard sniffer trace command.

Since NP6-accelerated traffic is handled entirely in hardware, onlya small portion of initial packets(such as session setup packets or exceptions) might be seen in the sniffer output. To capture all packets, the administrator must disable hardware offloading using:

config firewall policy

edit

set auto-asic-offload disable

end

Disabling ASIC offload forces traffic to be processed by the CPU, allowing the sniffer tool to capture all packets.