Migrate existing DHCP Failover Cluster to new Hardware

J K 1 Reputation point
2021-03-24T09:21:18.76+00:00

Hi!

I need to migrate an existing 2 Node Failover Cluster (2012 R2) to new Hardware. The Cluster is hosting DHCP role.
I've setup 2 new Nodes with Server 2016, installed all required Roles and added them to the existing Cluster.

My Question now is, are there any additional configuration steps required for the new Nodes to host the DHCP role? Do I need to authorize DHCP on the new Nodes in the post-install configuration or skip it?

br,
J

Windows DHCP
Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
1,020 questions
Windows Server Clustering
Windows Server Clustering
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Clustering: The grouping of multiple servers in a way that allows them to appear to be a single unit to client computers on a network. Clustering is a means of increasing network capacity, providing live backup in case one of the servers fails, and improving data security.
950 questions
{count} votes

2 answers

Sort by: Most helpful
  1. Sunny Qi 10,881 Reputation points Microsoft Vendor
    2021-03-25T06:52:37.93+00:00

    Hi,

    Thanks for posting in our Q&A platform.

    If your DHCP server is a domain joined server, authorization must occur as part of an Active Directory domain. If you do not authorize the DHCP server in the Active Directory domain, the DHCP service will fail to start properly, and then the DHCP server will not be able to support requests from DHCP clients.

    Authorization must occur before a DHCP server can issue leases to DHCP clients. Requiring authorization of the DHCP servers prevents unauthorized DHCP servers from offering potentially invalid IP addresses to clients.

    Best Regards,
    Sunny

    ----------

    If the Answer is helpful, please click "Accept Answer" and upvote it.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

    0 comments No comments

  2. J K 1 Reputation point
    2021-03-25T09:47:25.933+00:00

    Hi Sunny!

    Thanks for your answer.
    Are you sure that I need to authorize DHCP on every single node of the Failover Cluster? At the moment only the Clustered DHCP Role is listed in authorized Servers, not the nodes...