Change network interface names to eth0 schema in Debian Stretch


#1

Starting with Debian Stretch, ethernet interface names becomes like ens33.

How can I change names to old ethXX schema?

There is no /etc/udev/rules.d/70-persistent-net.rules file exist in the system.


#2

Network interface naming rules changed with Debian 9. There are a few reasons behind this, you can read the details here:

https://lists.debian.org/debian-user/2017/07/msg01453.html

If you just upgraded your system from Debian-8 to Debian-9, old ethXX schema will continue to work. But, if you install a fresh Debian-9 system, new schema will be used.

So, old schema is deprecated in Debian 9, and will not be supported any more in Debian 10 (similarly Ubuntu 18.04 LTS).

Now you can switch the old schema with adding new kernel parameters:

  • Edit /etc/default/grub file and add net.ifnames=0 biosdevname=0 parameters to GRUB_CMDLINE_LINUX variable like that:
GRUB_CMDLINE_LINUX="net.ifnames=0 biosdevname=0"
  • Update the grub config and reboot the system:
$ sudo update-grub
$ sudo reboot