Hello slogger123,
The cluster (shared) IP has to be fixed, this is the main part of the cluster. If the active server fails then the other one is starting and creating the same IP so users can reconnect.
The shared interface needs to be created on the common subnet for both cluster machines. Also, cluster machines need to be able to communicate
with each other. It could be the same subnet as above or the other one.
If this is required:
the active server in production datacentre and the standby in the DR centre
then I can suggest creating separate nodes for both cluster host. First, you need to create cluster after that I add nodes separately for both cluster machines. You have to remember to not execute ‘–clusterupdate’ after that as this command will synchronize node database, and you want to keep it separate.