# Cloning MAC Addresses

## On RHEL-based systems

If your interface is eth0, edit /etc/sysconfig/network-scripts/ifcfg-eth0. If you see a HWADDR param, comment it out and add MACADDR=xx:xx:xx:xx:xx:xx. Here’s a sample:

DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes

# On CentOS 6
BOOTPROTO="dhcp"


Then restart the network service for this to take effect:

service network restart


## On BSD-based systems

If your interface is igb0, add a file called /etc/start_if.igb0 to specify the cloned MAC:

ifconfig igb0 ether 00:12:79:45:89:df


Then reboot your server.