In a mixed mode Access Appliance cluster, after the execution of the Cluster> add node command, one type of unused IP does not get assigned as a physical IP to public NICs

If you configure both IPv4 and IPv6 IPs as unused physical IPs, and execute the Cluster> add <IPv4_ip of node_to_be_added> command, then only IPv4 unused IPs are assigned as physical NICs. IPv6 IPs are not assigned to the newly added node.

(IA-13271)

Workaround:

Add the node to the cluster using the Network> ip addr add command. Then, manually configure the IPv6 physical IP.