I was told by a customer service person to use ethernet cable directly from the ONU and dial it through my computer. I have 18.04 on my PC. I figured out the method to start adding a PPPoE connection. But I only have my ISP ID and password. There are other 3 fields as seen below. Any idea what to enter in them ? Any help will be great.
It won't allow to continue unless all 5 boxes are filled.

It won't allow to continue unless all 5 boxes are filled.