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Ethernet Naming Convention

You can change network interface naming conventions for RHEL, CentOS, Oracle Linux, and Suse Linux systems.

Procedure

  1. Open the grub file:

    $ vi /etc/default/grub

  2. Add net.ifnames=0 biosdevname=0 at the end of the GRUB_CMDLINE_LINUX line:

    GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/swap vconsole.keymap=us crashkernel=auto rd.lvm.lv=centos/root vconsole.font=latarcyrheb-sun16 rhgb quiet net.ifnames=0 biosdevname=0"

  3. Save the file and exit.

  4. Check to ensure the changes you made are correct: 

    $ grub2-mkconfig

  5. If changes are correct, update the grub configuration:

    $ grub2-mkconfig -o /boot/grub2/grub.cfg

  6. Change directory to network-scripts folder:

    $ cd /etc/sysconfig/network-scripts

  7. Copy the interface file name from the original name ens192 to eth0:

    $ cp ifcfg-ens192 ifcfg-eth0

  8. Open the ifcfg-eth0 file and change the NAME and DEVICE variables inside the file (that reflect the names of the interface) to eth0.

    Sample output:

    Type=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
NAME=ens192
UUID=9a8547cd-4d40-4d51-bdfc-e213dl8828a6
DEVICE=ens192
ONBOOT=yes
IPV6_PRIVACY=no

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