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 auto

[paulos@infosec.exchange]

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*=eth
iface eth inet dhcp
iface eth inet6 auto

There are caveats... I'm slowly finding out about them, but for my use case this works fine...