How do I set up which one of option to IP package encrypt?

How do I set up which one of option to IP package encrypt by RouterOS ?

I used Hotspot and Radius. If I want to use internet, I have to pass that ID and PW first.

But I have a problem. I want to IP package encrypt on network.

So, How can I set up ?? Or another slove?? Thank you everyone!!

You can use PPPoE for Ethernet or WPA for wireless to encrypt data in the local network.

PPPoE will solve your issue, just for tighten security do not use pap authentication.