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Migrate DHCP from Single Windows 2012 R2 Domain Controller to Windows 2016 Failover DHCP RRS feed

  • Question

  • Hi

    We are looking for suggestions to migrate DHCP from Windows 2012 R2 DC to highly available 2016 servers. We have hardware load balancer in place. Also looking for MS security compliance for Windows 2016 DHCP servers. How can we achieve this w/o any downtime and by following best practices

    Thanks in advance


    LMS


    • Edited by LMSU Sunday, May 13, 2018 5:35 PM
    Sunday, May 13, 2018 8:03 AM

Answers

All replies

  • Hi

    Can we follow the doc "https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/dn753715(v=ws.11)". At present Windows 2012 R2 Domain Controller - Win2012R2DC01 - is configured with DHCP role w/o .

    As per the article we will follow below steps to avoid any downtime

    a) Prepare 2 Windows 2016 servers with DHCP roles (Win2016DHCP01 & Win2016DHCP02)

    b) Export DHCP settings (export server level settings) from current DHCP server Win2012R2DC01

    Export-DhcpServer –ComputerName Win2012R2DC01 –File C:\export\DHCP2012-1exp.xml -Verbose

    c) Import DHCP settings to Win2016DHCP01 & Win2016DHCP02

    Import-DhcpServer –ComputerName Win2016DHCP01 –File C:\export\DHCP2012-1exp.xml -BackupPath C:\backup\ -ServerConfigOnly -Verbose -Force

    d) Configure DHCP failover between Win2012R2DC01 & Win2016DHCP01

    e) Delete DHCP failover on Win2016DHCP01 (DHCP scopes that were added to the failover relationship will be removed from the partner DHCP server. Scopes will remain on the server where you entered the Remove-DhcpServerv4Failover command)

    f) Configure failover between Win2016DHCP01 & Win2016DHCP02

    g) Stop DHCP on old servers Win2012R2DC01

    Thanks in advance


    LMS

    • Marked as answer by LMSU Thursday, May 17, 2018 10:40 AM
    Sunday, May 13, 2018 5:33 PM
  • Hi,

    Yes I think it should work, the steps i will add are :

    • Authorize the new DHCP servers
    • Configure your DHCP relay

    Best Regards,

    • Marked as answer by LMSU Thursday, May 17, 2018 10:40 AM
    Sunday, May 13, 2018 5:40 PM
  • Hi,

    Thanks for your question.

    Here is a link detailed talked about DHCP migration on DC. Please refer to the following article and roll down to the chapter DHCP decommission on the old server for this implementation.

    https://blog.workinghardinit.work/2011/02/07/keeping-the-same-server-name-ip-address-when-moving-a-domain-controller-dns-dhcp-wins-server-to-new-hardware/

    Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.

    Furthermore, after the DHCP migration is done successfully from old DC, we can unauthorize DHCP on DC, then we could proceed to configure failover on other servers 2016.

    For configuring DHCP failover, you may refer to the following articles.

    https://blogs.technet.microsoft.com/keithmayer/2012/10/28/step-by-step-scoping-out-the-new-dhcp-failover-in-windows-server-2012-31-days-of-favorite-features-part-28-of-31/

    https://blogs.technet.microsoft.com/teamdhcp/2012/06/28/ensuring-high-availability-of-dhcp-using-windows-server-2012-dhcp-failover/

    http://www.itprotoday.com/windows-10/windows-10-redstone-5-build-tracker-pcs

    Hope this helps. If you have any questions and concerns, please feel free to let me know.

    Have a nice day!

    Best regards,

    Michael


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    • Marked as answer by LMSU Thursday, May 17, 2018 10:40 AM
    Monday, May 14, 2018 7:40 AM
  • Thanks Michael. So we hope we can follow the steps that mentioned with my post, right?

    LMS

    Tuesday, May 15, 2018 8:50 AM
  • Yes! That's also right. 

    We'll better to backup full system for the DC before proceeding in case of any disaster unexpected. 

    Highly appreciate your effort and time. If you have any questions and concerns, please feel free to let me know.

    Best regards,

    Michael


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    Tuesday, May 15, 2018 10:39 AM
  • Hi,
    Could the above reply be of help? If yes, you may mark it as answer, if not, feel free to feed back.
    Best Regards,
    Michael


    Please remember to mark the replies as an answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com

    Thursday, May 17, 2018 8:10 AM