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Staff

Created on ‎11-26-2025 12:48 AM

Article Id 420485

Technical Tip: Configuring the software switch on FortiGate to communicate with a Cisco Switch

Description

This article describes the steps of configuring the software switch on FortiGate to communicate with a Cisco Switch.

 

Network topology:

 

1.png
Scope Software switch, FortiGate.
Solution
  1. On FortiGate Firewall, it needs to configure the software switch and VLAN interface under it (in the system interface section).

 

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3.png

 

  1. On the Switch side, the underlay interface e0/0 is configured as a Trunk link, and a VLAN interface is also defined:

 

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  1. As a result, vlan interface in the Switch and the FortiGate Firewall can ping each other:

 

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