FortiGate
FortiGate Next Generation Firewall utilizes purpose-built security processors and threat intelligence security services from FortiGuard labs to deliver top-rated protection and high performance, including encrypted traffic.
fdsantos
Staff
Staff
Article Id 351292
Description

This article describes why the interface cannot be used even if the requirements are matched to be used in a software switch.

Scope

FortiGate.

Solution

For an interface to be used in a software switch it must match the requirements presented in this KB.

Troubleshooting Tip: Cannot add interface to software switch

 

Here is a situation where the interface has 0 references, no IP address, using the appropriate role, and device detection disabled but the interface is still not shown in the list of interfaces that can be used.

 

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It is possible to check the HA setting as a heartbeat device if the interface is used in there even if the FortiGate is used as a standalone.

 

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Remove the heartbeat device setting or delete the whole HA setting if the FortiGate is standalone.

 

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Once removed, the interface will be visible in the list of interfaces available for the software switch.

 

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