The following table lists network ports that must be opened to manage inbound and outbound traffic.
Backup server, Veeam Backup & Replication console
Microsoft Active Directory machine
Manages communication between the domain controller and the backup server.
Used for LDAP connections.
636, 3268, 3269
49152 to 65535
The dynamic RPC range that is used by the runtime coordination process which is deployed on the Microsoft Active Directory machine for application-aware image processing (when working over the network, not over VIX API).
For more information, see this Microsoft article.