Question about ARP-Spoofing

Hey!

I have a question. As I understand, bettercap works not only on the my local network, isn’t it? Is it true that I just need to know the mac-address of the attacked router, and the mac-address of the attacked machine, replace the mac-address of my machine with the mac-address of the attacked router, and use the bettercap to carry out an MITM-attack? Could you tell me how this is done? And, if it is in the lectures, where can I see it?

Thanks.

Hey,
I think you are talking about this course. Learn Ethical Hacking from Scratch. (Zaid) Chapter 12 first video. everything is explained.