How to import pppoe secret and other from old routerboard ?

RouterOS General
1

i want to transfer all of my pppoe secret and other setting from other router , how can i do this ?

2

Open a terminal on the older routerboard an issue

/export file=OldSetup

That will create a OldSetup.rsc file you can drag and drop from winbox to your desktop.

Which is the ROS version on the old routerboard? What would be the new routerboard?