How to change the MTU from CLI on Sonicwall Firewall

Provide information about how to Change the MTU using CLI when GUI is either not accessible or not desired .

Requirement: To change the MTU on the X1 WAN interface to 1452

Login to Sonicwall CLI using either SSH or Console cable. Follow this KB article for assistance: How can I login to the appliance using the Command Line Interface (CLI)?

Once logged in, please follow this sequence of commands. For this example, PuTTY is the Terminal program used to SSH into the SonicWall.

> config
> interface X1
> MTU 1452
> commit
> exit




Note:- Please note on firmware 5.6.0.x or 5.8.1.x commit command is not needed. As soon as you exit the cli it would be updated