Google it ....

Showing posts with label interface name. Show all posts
Showing posts with label interface name. Show all posts

Wednesday, March 20, 2013

Change network device name from eth1 back to eth0 in RHEL6

The interface name of a network device increases if the mac address of the physical or virtual network card changes. A common case is if you made a clone of a virtual machine for example via VMware or replaced a physical network card in a non virtualized server.

If it’s a RHEL 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, after that restart network service.
# service network restart


To be sure everything works fine reboot your machine.