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Major Problems with Hyper-V Networking.

By aapierides ·
I am currently building a virtualization environment for our QA department. The system consists of an HP MSA2312fc and 2 HP DL360 G6 servers. The servers run the HYPER-V and the MSA is used for storage. The whole setup of the system was quite straight forward with no issues.

Now I have the whole thing up and running but I have a very weird problem. I want to connect the virtual machines that I have created to the QA domain. So I went on creating an External Virtual Network through Hyper-V?s Virtual Network Manager. I associated it with the second NIC of the system (Broadcom BCM5709C NetXtreme II GigE), enabled the virtual LAN identification and applied the changes.

When I checked the Network connections on the host server everything looked fine, the card that I have selected to be used by the virtual network had all its items removed (under its properties windows) and the Microsoft Virtual Network Switch Protocol enabled. The External Virtual Network inherited all its setting, including IP, Subnet, gateway and DNS.

So I now proceeded to add the Virtual Network Adapter to the virtual machine. Now all was set, pressed the start button and the VM started up. Under its NIC properties I did setup all the network details (IP, etc.).

No matter what I tried though I couldn?t see the outside network/domain. So I could ping the IP of the External Virtual Network, but I couldn?t get the VMs to ping anything within the physical network (DNS server, Domain controller, etc.) also from the physical network I cannot ping anything on the virtual network, not even the virtual switch that Hyper-V created through Virtual network manager. I could though ping from one VM to another VM, since they were both using the same virtual LAN.

I have followed all Microsoft instructions, went through a couple of books and a few TechNet forums but they all describe the exact steps that I have followed.

Is anybody able to help me out on this, or did anybody had/has similar issues?

Thanks.

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