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Handbook

ARP table

6.0.0
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ARP table

In transparent mode, the Address Resolution Protocol (ARP) table is used in the following situations:

  • For IP traffic received or originated by the FortiGate itself, and in destination of the management device or next-hop.
  • When IPsec is used, the FortiGate uses its ARP table to forward the traffic from the IPsec tunnel to the local destination host(s).

All other forwarding decision is based on the Forwarding Database (FDB) table or optional settings.

ARP table

In transparent mode, the Address Resolution Protocol (ARP) table is used in the following situations:

  • For IP traffic received or originated by the FortiGate itself, and in destination of the management device or next-hop.
  • When IPsec is used, the FortiGate uses its ARP table to forward the traffic from the IPsec tunnel to the local destination host(s).

All other forwarding decision is based on the Forwarding Database (FDB) table or optional settings.