Minecraft server without Hamachi Unitymedia?

Hi, I wanted to set up a minecraft server for my friends and me. The server I wanted so we do not need annoying hamachi.

I know that I would have to unlock ports, but it is so that I can't do more with unitymedia because their customers no more ipv4 to dispose of but only ipv6. How can I set up an MC server without needing hamachi?

You could do it with a tunnel.

Do all your friends have an IPv6 address? Then that should work.

Possibly put the IPv6 in [].

I own no IPv6 because my provider does not support this yet, so unfortunately I can't speak from experience.