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Two DHCP leases are created for each domain controller when you use the VDC cloning feature
Article ID: 2742836 - View products that this article applies to.
Consider the following scenario:
In this scenario, you notice that two IP addresses are leased from the DHCP server for each cloned domain controller.
Note Only the more recent lease is used by the cloned domain controllers.
This issue occurs because the new server first takes a lease in its pre-cloned state during the cloning process. The new server then clones, becomes a new domain controller, and obtains a new lease. However, the old lease is not released during this process.
To resovle this issue, manually delete the unused address leases in DHCP, or let those leases expire as usual.
This behavior is expected.
For more information about how to configure and troubleshoot VDC, go to the following Microsoft websites:
Introduction to Active Directory Domain Services (AD DS) Virtualization (Level 100)
Virtualized Domain Controller Technical Reference (Level 300)