Multi Region Cluster
Suppose you have 3 Regions
You can install multiple FerrumGate servers on different locations, if they reach the same redis instance and elastic search (data plane), they behave like a cluster. You can create virtual networks on each of them.
Clients can use for authentication any of them, every client will directly connect to the permitted networks, no overlay network.
Creating a multi region cluster
There is no difference creating a multi region and a internal cluster. Only the public IPS are different. Nothing more. Please follow creating cluster
Please open port 54321 on firewall.