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Moving DHCP from 2008 to new DC 2008 R2

Posted on 2013-01-18
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Last Modified: 2013-06-13
We are replacing the hardware of our DC 2008 standard with DHCP to new DC 2008R2.  What is te best way to export and import the DHCP role?  The servers need to have he same Name/IP address after the change.  Do I need to transfer the DHCP role to a different DC on our network before I demote the old DC then transfer it back to the new DC once it is online as the new DC with the same name andsame IP.  We have 3 DCs on our network I have already transfered the FSMO roles including the PDCEmulator to one of those servers.
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Question by:beefwilliams
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by:IKtech
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Begin the process by opening the DHCP Manager, found on the server’s Administrative Tools menu. When the console opens, right click on the server name, and then choose the Backup command from the resulting shortcut menu

Install the role on the new server. open the DHCP  manager on the new server and right click the server then restore.  Stop the service on the original server and test DHCP.
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by:Stelian Stan
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That's doable. To do that follow this steps: http://technet.microsoft.com/en-us/library/dd379483%28v=ws.10%29.aspx
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by:IKtech
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I would setup the new server with a new name and ip and then not worry about renaming and changing ip to match the original.  It seems like more trouble than it is worth.
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by:IKtech
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you need to think about DNS too.  Does any of your servers/pcs or other devices depend on the server you are replacing for name resolution?
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by:Ayman Bakr
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I would install an auxiliary DHCP server, migrate the primary, then remove the auxiliary one. First you need to prepare for the migration by ensuring that critical patches and migration tools are installed on both source and destination servers. Then you will carry out the actual migration.

The following is an excellent systematic guide:

http://technet.microsoft.com/en-us/library/dd379535(v=ws.10).aspx
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by:beefwilliams
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Thank you for all the quick responses!!!  I will be spending the holiday Moday doing this upgrade I will let you know how it goes.
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by:beefwilliams
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Exactly what I needed, only thing I had to change was due to permissions I had to move the backup folder to C:\Windows\System32\dhcp on the new server before running the restore.
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