Solved

Windows Server 2012 Hyper-V Virtual Switch DNS Problem on DC

Posted on 2014-09-02
6
543 Views
Last Modified: 2014-11-12
Hi!
Okay i have a really annoying problem.

Basically we have the following:

A HP Proliant ML350e with 2 physical nics.
The server is running Windows Server 2012. Its roles are DC, DNS, DHCP, FILE SERVER, HYPER-V.

Within Hyper-V we have a virtual machine acting as a RDS Server. We're using one nic from the host for the DC and one for the RDS vm. So within Hyper-v the vm has lets say 172.16.10.11 and if i look in the DC the virtual switch has 172.16.10.49. The Physical NIC of the DC has 172.16.10.10

The problem arises that the DC registers the Hyper-V switch in DNS so when i nslookup DC.CONTOSO.COM i get back 172.16.10.49, instead of what i should get 172.16.10.10. I can go into DNS and delete the entries made for DC pointing to 172.16.10.49 and after a ipconfig /flushdns on RDS i can nslookup DC and get the correct respons. The problem is that the .49 adress returns to dns. What is the fix for this and why am i such an idiot that can't figure this out? It would seem to be a problem with Hyper-V no?

Any pointers would greatly help me out as im going nuts here.
0
Comment
Question by:Wouter Makkinje
  • 4
  • 2
6 Comments
 
LVL 2

Author Comment

by:Wouter Makkinje
ID: 40300412
I've disabled the Hyper-V vethernet adapter in the DC host and it doesn't seem to affect the RDS server. Leaving it disabled solves the issue but what is it and why is it even there?
0
 
LVL 57

Expert Comment

by:Cliff Galiher
ID: 40301385
Virtual switches do not get IP addresses. So something is definitely screwed up, or you described your environment wrong. You usually can't even force an IP address onto a vswitch. The system will throw an error first.

As an aside, running hyper-V on a DC (or any role really, but ESPECIALLY a DC) is very bad. hyper-V should run alone. Any other roles should be virtualized. Running a DC as a VM is perfectly acceptable. And costs nothing since you get 1+2 licensing rights with 2012. There is no reason to colocate roles like that.
0
 
LVL 2

Author Comment

by:Wouter Makkinje
ID: 40303021
Ive attached an image of the connections.
Sk-rmklipp.PNG
0
Back Up Your Microsoft Windows Server®

Back up all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

 
LVL 57

Expert Comment

by:Cliff Galiher
ID: 40303576
Why are you attaching this image? Without context, explanation, or a follow-up quesrion, I am not sure how to help you.
0
 
LVL 2

Accepted Solution

by:
Wouter Makkinje earned 0 total points
ID: 40304237
Here i solved it, I will attach an image and in this image i have highlighted a check box which needs to be unchecked in order for the adapter or hyperv switch to not show up in the hyperv host. Anyways thanks for the help.
Sk-rmklipp.PNG
0
 
LVL 2

Author Closing Comment

by:Wouter Makkinje
ID: 40311581
Since the expert helping me didnt solve it but i did eventually.
0

Featured Post

Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Recently, I was assigned the task of performing a hardware refresh in the datacenter. The previous Windows 2008 systems were connected to the SAN via fiber channel HBA’s and among other thing, had PowerPath installed in order to provide sufficient f…
What to do when Windows Update is not working correctly? What tools can I use to detect the cause of the malfunction problem? What does this numeric error code mean? These and other questions that you have been asking in the past are answered here (…
This tutorial will walk an individual through the process of configuring their Windows Server 2012 domain controller to synchronize its time with a trusted, external resource. Use Google, Bing, or other preferred search engine to locate trusted NTP …
This tutorial will walk an individual through the process of installing of Data Protection Manager on a server running Windows Server 2012 R2, including the prerequisites. Microsoft .Net 3.5 is required. To install this feature, go to Server Manager…

792 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question