Add multiple IPs to a server
For example if you want to add a few IPs from the 220.127.116.11 class:
[root@box ~]# cd /etc/sysconfig/network-scripts/- this is where the network settings are being searched for
[root@box network-scripts]# vi ifcfg-eth0-range0- this will be the file where we define the new IP class(considering that our main interface is called eth0)
Add this content to the file:
IPADDR_START - the first IP of the class you want to add
IPADDR_END - last IP of the class you want to add
CLONENUM_START - the number with which the virtual interface will start, this will create the virtual interfaces eth0:1 to eth0:28.
If you have more classes that you want to add on the next class CLONENUM will start at 29.
NETMASK - the mask for the IP class
After all this was added to the file and edited accordingly just save and restart the network.
Next class will be added same way only that you create a new file for it:
[root@box network-scripts]# vi ifcfg-eth0-range1
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