Change MAC Address From Terminal - MikroTik Script RouterOS

By default changing MAC address of ethernet interface in Mikrotik Winbox is disabled:

But You can very simple change MAC in terminal.

In left side menu select New Terminal:

/interface ethernet set ether1 mac-address=XX:XX:XX:XX:XX:XX
Where ether1 is required interface and XX:XX:XX:XX:XX:XX is new MAC address of your device.