If you already have a range file, you will need to create a new one for the new range of IPs you are adding, eg ‘nano ifcfg-eth1-range1` . If you have one named range1, name the next range2 and so on.
Place the following text in the file:
Note: CLONENUM_START defines where the alias will start. If this is the second range file, you will need to set CLONENUM_START to a value higher than the number of IP addresses assigned. To check what you currently have used, you can run ‘ifconfig –a | grep eth0’. This will list devices such as eth0:0, eth0:1, eth0:2, and so on. If you are currently using upto eth0:16, you will need to set CLONENUM_START to 17 to assign the IPs correctly.