none
NLB cluster on Windows 2016

    Question

  • Hello!

    I'm trying to setup NLB cluster from Windows 2016 Virtual machines, but after creating cluster i lost connectivity to (from) virtual machine, and of course NLB cluster is not working.  NLB cluster console and event log shows no errors and cluster shows as Converged.
    Of course "Enable MAC address spoofing" is checked and NLB cluster is in unicast mode.
    Then I created Windows 2012 R2 machine on the same HyperV host (Windows 2016) with the same settings and NLB cluster works as expected.
    So anything other is needed to configure on Windows 2016? Any ideas?

    Thanks.

    M.




    Monday, October 31, 2016 7:58 AM

All replies

  • Hi Mareks,

    >>So anything other is needed to configure on Windows 2016?

    I'm afraid there are no related guides on virtual machine about it.

    Have you installed the following update?

    https://support.microsoft.com/en-us/kb/3192366

    Best Regards,

    Leo


    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Tuesday, November 1, 2016 2:35 AM
    Moderator
  • Found, that in Windows 2016 network adapter MAC address is not automatically changed to NLB cluster MAC address (according to http://www.isaserver.org/articles-tutorials/articles/basicnlbpart2.html -  in unicast cluster NLB replaces the actual MAC address on each NLB adapter to a common NLB MAC address). So I manually changed adapters MAC addresses to NLB cluster MAC address and  NLB cluster is now working. 

    I checked, that on Windows 2012 R2 MAC address is automatically changed, so seems like a bug.

    M.

    Tuesday, November 1, 2016 6:18 AM
  • Hi Mareks,

    Thanks for your sharing.

    You could post feedback to the following site. Microsoft engineering teams would monitor the feedbacks and may improve the products.

    https://windowsserver.uservoice.com/forums/295047-general-feedback

    Best Regards,

    Leo


    Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Tuesday, November 1, 2016 8:53 AM
    Moderator