Technical Tip: Enabling Multi-VDOM mode in Transparent mode FortiGate

ekrishnan · ‎10-16-2024

Description

This article explains the expected behavior on a FortiGate operating in Transparent mode after the firmware upgrade from v7.2.x to v7.4.0 - v7.4.7.

Scope

FortiGate.

Solution

In earlier versions, for example, v7.2.x, the FortiGate operating in Transparent Mode can enable Multi-mode VDOM.

However, starting from v7.4.0 to v7.4.7, this is not allowed.

For example, v7.2.7 allows users to enable Multi-mode VDOM as per below:

config system setting
set opmode transparent <----- FortiGate's operation mode is in Transparent mode.
set manageip 192.168.1.99/255.255.255.0
end

config sys global

(global) # set vdom-mode multi-vdom

(global) # end
You will be logged out for the operation to take effect.
Do you want to continue? (y/n)y

In version v7.4.0 to v7.4.7, this is not supported:

tp mode multivdom mode 7.4.4.png

This is an expected behavior starting from v7.4.0 until v7.4.7 as of now.

Multi-VDOM mode will be available again for Transparent mode starting from FortiOS v7.4.8 for 7.4.

Note:

In version v7.6.0, this is allowed again.

7.6multi vdom.png

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