I have A question about Zerto Replication Process :
You would need to assign a static /dhcp in the NIC tab under the VPG configuration. Let’s say your source and DR are on the same vLAN and If you choose to assign the same VM IP then you would need to shut down the source VM while failover as there’ll be an IP conflict.
We don’t really care about what’s inside the VM unless the VM (application is unsupported) as we use the journaling concept while failover. Below are the best practices KB for failing over ADDC.