Virtual IP addresses

You can add several virtual IP addresses to a physical network interface. A good starting point is to copy the interface definition file of the device you want to add a virtual IP address to.

cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0:0 

You may have to modify ifcfg-eth0 to match your physical interface name.

Now you can edit the new file ifcfg-eth0:0 and specify the network settings of the virtual interface.

To make the changes take effect please restart the network services using:

service network restart