I am trying to get access to a machine behind my router from an external VPS.
As Port Forwarding is not the answer in IPv6 context, I guess the right way is to have a publicly accessible (global) IPv6 assigned to the machine behind my router.
However, I don't know how to accomplish that.
I managed to get IPv6 working in client mode on that machine, but how do I access for example a web server on that machine from the external VPS?
Also, although the router has a global address (starting with 2a03) which I can ping from the external VPS, I cannot establish a TCP connection to a specific port from the VPS to the router, trying with socat. The other way around is working.
Okay. Now there are random global addresses automatically assigned to all devices behind the router, without any static leases. Actually the list of DHCPv6 leases is completely empty and I don't know why.
What I did: "Delegate IPv6 prefixes" in Interfaces -> WAN6. "IPv6 assignment length" to 64.
Also in Interfaces -> LAN: RA-Service and DHCPv6-Service both to "server mode".