When you configure a FireCluster you must define a management interface. For each cluster member, type a unique IP address that you can use to manage the device. We recommend that you select two unused IP addresses on the same subnet as the primary IP address of the interface. When you type the IP address, you must use slash notation to indicate the subnet. For more information, see About Slash Notation.
For more information about the management interface, see About FireCluster Management IP Addresses.