Switch to Legacy Interface Names

Disable new naming

Edit /etc/default/grub:

Add net.ifnames=0 at the end of GRUB_CMDLINE_LINUX=“

It should look like this:

Create a new grub config

Create persistent-net rule in udev

Edit the file /etc/udev/rules.d/70-persistent-net.rules like (the file porbably doesnt exist):

and add one line per interface like this: where HH:HH:HH:HH:HH:HH is the MAC Address of that interface.

Rename network scripts

Find the interface files here /etc/sysconfig/network-scripts and move them to their new names, for each script you need to edit it and change the device name as in the example below.