VEEAM Replication on VNX/VNXe configuration Questions

Hi

if VEEAM is the solution used for VMWARE Replication for few VMs hosted on

What Licenses and Configuration will be needed from the vnxe or vnx side ?

I read that snapshots are needed so Local Protection is needed from VNX side ; and I think Replication License is also needed

What needs to be configured for such scenario ?

anyone has a Document showing the same or talking deep technically about ?

I need to know how veeam will talk to vnx on Replication and be able to manage and make vms active if failover -> Failback is done or so

I dont find much talking about the same so please share documents

Thanks