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I have two servers, DHCP1 and DHCP2 running on Windows Server 2008 and I want to migrate them both on Windows Server 2012 without downtime to the DHCP service. After reading a few articles this is what I have so far.

  1. Export all the DHCP configuration from the 2008 server using "netsh dhcp server export C:\Users\user\Desktop\dhcp.txt all"
  2. Import all the DHCP configuration on the 2012 server using "netsh dhcp server import C:\Users\user\Desktop\dhcp.txt all"
  3. Authorize the new DHCP server from the DHCP console.

My problem is that I have to maintain the same hostnames and IP Addresses for the 2012 servers. So I’ll have to bring down one of the 2008 servers, replace it with a 2012 server and import all the configuration I exported from the 2008 server. And then repeat for the second 2008 DHCP server.

  1. Will I have to de-authorize the first 2008 server before shutting it down and replacing it with a 2012 server?
  2. Will the second 2008 server work properly when the first 2008 server is replaced with a 2012 server?
  3. Anyone who’s done this before, do you have any advice, tips & tricks or anything I should be on the lookout for?

I realize this should be a simple task, but I’ve never done it before and I’d like some advice from someone with more experience.

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  • Are the two existing DHCP Servers configured with different Scopes?
    – Michael Brown
    Mar 20, 2017 at 11:03
  • No, they are configured with the same scopes.
    – aristosv
    Mar 20, 2017 at 13:16
  • Are you using the split scope wizard or another method to make sure they don't give out the same IP addresses?
    – Michael Brown
    Mar 20, 2017 at 16:06
  • Why do you need to use the same names and ip addresses for the new servers?
    – joeqwerty
    Mar 20, 2017 at 16:30
  • Have you read the TechNet DHCP Server Migration guide? technet.microsoft.com/en-us/library/dn495425(v=ws.11).aspx
    – Matthew Wetmore
    Mar 20, 2017 at 21:28

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