change-network-device-name-from-eth1-back-to-eth0

CentoOs 6 rename eth1 to eth0.txt

If it’s a CentOS 6 machine you need to change 2 files to rename the interface for example from eth1 back to eth0.

One file is the udev rule for network devices which is located here:

/etc/udev/rules.d/70-persistent-net.rules
Copy the new mac address to the line of your eth0 rule and delete the new rule for eth1.

# PCI device 0x15ad:0x07b0 (vmxnet3)
SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{address}==”00:50:56:b2:23:e0″, ATTR{type}==”1″, KERNEL==”eth*”, NAME=”eth0″
Modify the network configuration located under:

/etc/sysconfig/network-scripts/ifcfg-eth0

and replace the old ip with the new one and the old mac address with the new mac address.

To be sure everything works fine reboot your machine.

### https://www.banym.de/linux/centos/change-network-device-name-from-eth1-back-to-eth0