I have learned a neat trick today: this works in /etc/network/interfaces with ifupdown and it works both with "eth0" and "enpXsY":auto /e*=ethiface eth inet dhcpiface eth inet6 autoThere are caveats... I'm slowly finding out about them, but for my use case this works fine...
@adamhavelka that seems nice, thank you! I'll check it.Vagrant feels too brittle. Usually it breaks without warning, but it was still the easiest path. Well now it does not even boot the machine.