6.12. `VPN MTU` command

6.12.1. Introduction

The `VPN MTU` command enables modifying the MTU value of the IPsec tunnel interface (mgmt0 or vpn0).

6.12.2. Prerequisites

User : setup

6.12.3. Preliminary operations

Depending on the situation:

Either use Direct connection to the GCenter configuration menu via SSH
Either use Direct connection to the GCenter configuration menu with keyboard and monitor
Either use Direct connection to the GCenter configuration menu in HTTP via iDRAC (DELL server)
Either use Direct connection to the GCenter configuration menu SSH via the iDRAC interface in serial port forwarding mode

6.12.4. Procedure

The configuration menu is displayed.

Select the `VPN MTU` line or press the letter V.
Click on the `OK` button.

The following window is displayed:
```
Select MTU:
```
Enter the MTU value.
Press the `OK` button to confirm the configuration and return to the menu.