Technical Tip: Disable IPv6 for a specific interface in FortiMail

adavila · ‎08-31-2024

Description

This article describes disabling IPv6 for a specific interface in FortiMail using CLI console.

Scope

FortiMail version 7.2.0 and later.

Solution

Using the CLI console, log in with the admin account, and run the following commands:

config system kernel

edit sys.net.ipv6.conf.port1.disable_ipv6

set value 1

end

Take in mind, the example shown above is for the interface 'port1'. It is necessary to specify the interface desired to disable IPv6.

The following table shows the description for each command:

Command	Description	Comments
config system kernel	This command allows to enter in system kernel mode, so you can edit some parameters in the kernel configuration.
edit sys.net.ipv6.conf.port1.disable_ipv6	It allows to edit the IPv6 status for interface .port1'.	It is possible to change the interface by selecting the one to edit (e.g. port2 or any other).
set value 1	It disables IPv6.	The values are: 0: enable. 1: disable.
end	Save the changes and exit.