My container has the following fixed IP address settings:     As you can see I set the prefix + the Interface ID. In my case "2003:xxx::8". But this works only if my IPv6 prefix does not change, so after an internet reconnect my provider assigns a different IPv6 prefix and my container is not reachable anymore.   I tried to use this, but it does not work: 192.168.178, ::8   How could I solve this?