export and Import DHCP entry from an DC Windows Server 2019 to the new clean Install Windows 2025 Server

Question

export and Import DHCP entry from an DC Windows Server 2019 to the new clean Install Windows 2025 Server

SSE@TUE 120

Hi,

I have an DHCP Server installed on the DC Windows Server 2022.

Now I want to do an clean Install Windows Server 2025 and promote it to DC and Install DHCP.

Can I export and import the DHCP entry from old DC Windows Server 2019 to the new DC Windows Server 2025?

I want to give the new DC with Windows Server 2025 an different name as the old DC Windows 2019.

Is that possible?

Best Regards

Nick

1 answer

Your answer

Answer 1

Marcin Policht 50,735 MVP Volunteer Moderator

Yes - simply follow https://learn.microsoft.com/en-us/windows-server/networking/technologies/dhcp/migrate-dhcp-server

DHCP server migration involves moving the settings for your existing DHCP server to a new DHCP server on the network. The goal of this server migration is to install the DHCP server role on the Windows Server operating system so that it provides DHCP leases on a network without any perceptible change to DHCP client computers.

This guide describes the steps for migrating existing DHCP server settings to a server that is running Windows Server. By using this guide to migrate a DHCP server, you can simplify migration, reduce migration time, increase the accuracy of the migration process, and help eliminate possible conflicts that might otherwise occur during DHCP migration. This guide doesn't contain instructions for migration when the source server is running multiple roles. If your server is running multiple roles, we recommend that you design a custom migration procedure specific to your server environment.

If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

hth

Marcin

SSE@TUE 120 Reputation points

2025-05-16T05:23:50.84+00:00

Hello,

Thank you for your Information. But you dont have answered my question about rename the Server name the new DC Windows 2025. The old DC DHCP Windows 2022 Server is called "svrdc" and the new DHCP Windows Server 2025 is called "srv-dc2"

Is that possible?

Regards
Marcin Policht 50,735 Reputation points MVP Volunteer Moderator

2025-05-16T10:10:13.8733333+00:00

Confirm - this is fully supported. The two servers can have different names - as a matter of fact, this would be a requirement of you want to perform an online migration between them

As per https://learn.microsoft.com/en-us/windows-server/networking/technologies/dhcp/migrate-dhcp-server

Prepare to migrate

Identify your DHCP Server source and destination servers.

Determine the domain, server name, and passwords on the source server. To identify the domain of the original server, view System Settings from the Control Panel.

Before migration, install all critical updates and service packs on the source server. It's a recommended best practice that all current critical updates and service packs are installed on both the source and the destination servers.

Count the number of network adapters in the source and destination servers and make sure that they're equal in number. If the source server that is running DHCP Server has multiple network adapters and the DHCP Server service is bound to all and serving IP addresses on different subnets, the destination server that is running DHCP Server must also have multiple network adapters so that it can serve the same subnets as on the source server.

Prepare a migration store file location. The store location must be accessible from the source server during the export and from the destination server during the import. Use a common drive that can contain all DHCP Server–related information from the source server. The storage location should be similar to the following: \fileserver\users\username.

If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

hth

Marcin

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export and Import DHCP entry from an DC Windows Server 2019 to the new clean Install Windows 2025 Server

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