For Each ZORG Site (DRaaS)

VMware vCenter Server version 5.1 and higher with at least one ESX/ESXi host and credentials for the vCenter Server with administration level privileges.
On the dedicated machines where Zerto Virtual Replication is installed:

Win 2008 R2 SP1 with KB3033929 and KB2864202, Win 2012 base, or Win 2012 R2.
Reserve at least 2 CPUs and 4GB RAM for the machine.

Microsoft .NET Framework 4.7.2 (included with the Zerto Virtual Replication installation kit).

If you have a firewall in the environment, make sure to open the ports, described below.
Note: If the organization and cloud service provider versions of VMware are different, any VMware limitations relating to mixing versions will apply.