Changing the IP Address Using nmcli
If you need to change the IP address of a local or regional cluster, you can make these changes very easily using nmcli.
Find out what connection is associated with the interface you want to change. You can use nmcli d to find the devices, and nmcli c to see which connections are associated with the device for which you wish to change the IP address.
Configure the connection with the new IP address:
Apply the changed connection to the interface to which it is associated, this will actually change the IP address:
After changing the IP address of any system running CPNR (like the virtual appliance), you need to restart in order to get the management server to recognize the new IP address of the system. For a local cluster, use the command: systemctl restart nwreglocal or for a regional cluster, use the command: systemctl restart nwregregion.