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deriderj

updated

23 days ago

D

deriderj

3 Posts

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13240

September 6th, 2008 07:00

Using Dual NICs on a single subnet

Hi,

I am setting up a Dell 1950 III running Windows Server 2008 x64 Server. The server comes with dual NICs. I am also installing Hyper-V. The Hyper-V documentation states that for security reasons I should setup a separate NIC for the virtual machines that run under Hyper-V. I am running a single subnet (10.0.0.x).

I plugged both NICs into the same router, gave them different static IP's as 10.0.0.3 and 10.0.0.4 with the same subnet 255.255.255.0 and the same gateway of 10.0.0.15. I didn't receive any errors during the configuration process but I did get a warning about having the same gateway address for both NICs.

I added 10.0.0.3 to DNS and setup 10.0.0.4 in Hyper-V as the physical NIC to use for virtualization.

I can ping my server, I can access the server using remote access but when I tried to access a shared drive on the server I get an error message that the computer name is a duplicate.

I've looked but I cannot find anything that states how to correctly set this up. To the contrary most of the info I can find states that this is a bad idea. I wouldn't have tried it if the Hyper-V documentation hadn't told me to.

Is there a way to do setup dual NICs on the same subnet as it states in the documentation? Am I mis-interpreting the documentation? Any help would be greatly appreciated.