Solved

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

Posted on 2014-09-02
6
558 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
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 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 58

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
Migrating Your Company's PCs

To keep pace with competitors, businesses must keep employees productive, and that means providing them with the latest technology. This document provides the tips and tricks you need to help you migrate an outdated PC fleet to new desktops, laptops, and tablets.

 
LVL 58

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

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.

Question has a verified solution.

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

Resolve DNS query failed errors for Exchange
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
In this Micro Tutorial viewers will learn how to restore their server from Bare Metal Backup image created with Windows Server Backup feature. As an example Windows 2012R2 is used.
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…

738 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