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2 IP’s for cluster

Hi all,
My node in a a/p cluster have to networkadatpers how to make the sql server listen on both interfaces ??? Restarted setup/advanced and tried to add the 2nd ip but got the error ip already exists ??? Thx for a hint

The sql server does not listen on the physical network adater IP addresses. It has it’s own virtual IP address created in the cluster group where the SQL services exist. You can add additional virtual IP addresses in this group if you want SQL server to listen to more than one IP.