I'm looking for the best strategy for moving our vCenter Appliance to a new management subnet (subnet B), and that VCSA is currently on the same subnet as the hosts in the cluster (subnet A). Our setup is below.
Environment (1 cluster):
3 ESXi 6.5 hosts on subnet A
1 VCSA 6.5 on subnet A
Management (subnet B) is firewalled/routed from subnet A
How do I change the IP/Hostname of the VCSA to one in subnet B, and still manage the hosts in subnet A? What ports are required for a firewall for the VCSA to manage them, and if I want to change the hosts to subnet B, will I need to remove them from the cluster, change their IPs/hostnames and then add them back?