Refer to the exhibit. In order for a FortiGate device to act as router on a stick, what configuration must an OT network architect implement on FortiGate to achieve inter-VLAN routing?

Question

Exhibit

Options

• ASet a unique forward domain on each interface on the network.
• BSet FortiGate to operate in transparent mode.
• CSet a software switch on FortiGate to handle inter-VLAN traffic.
• DSet a FortiGate interface with the switch to operate as an 802.1 q trunk.

• A
  3% (1)
• B
  3% (1)
• C
  11% (4)
• D
  83% (29)

Explanation

The router on a stick configuration requires a single physical interface on the FortiGate to carry traffic for multiple VLANs using 802.1q VLAN tagging. The FortiGate interface connected to the switch must be configured as a trunk port to handle tagged VLAN traffic. Sub-interfaces on the FortiGate are then created for each VLAN to route traffic between VLANs. This setup enables efficient inter-VLAN routing over a single physical link, as shown in the diagram where traffic from multiple VLANs converges on a switch and is carried over a trunk port.

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