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I'm currently in the process of colocating a windows server 2008 r2 running 3 hyper-v machines.

The co-location company has advised me to make the following example changes to my server:

For example IP Address: 83.145.229.65

Setup the IP Address on the server to be that of the one we have supplied and set your DNS as below:

  1. Subnet: 255.255.255.0
  2. Gateway: 83.145.229.1
  3. Primary DNS: 87.117.198.200
  4. Secondary DNS: 87.117.237.100
  5. Tertiary DNS: 87.117.196.200

I have done made the changes above for the host server, but I assume I have to make identical changes to the hyper-v machines?

Does the Gateway last value increment for each machine?

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1 Answer 1

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Assuming all your VM's will be having similar External IP's in the same range (So I assume you have been given a range of IP's) then the gateway would be the same for all VM's.

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I have only been given a single IP address. Would I need 3 additional ones or could I get by with just a single IP address to use on the Hyper-v's? –  asn187 Jan 6 '10 at 10:19
    
That depends if you want external access to each of the VM's, if you do then each will need their own routable IP. –  Sam Jan 6 '10 at 10:31
    
If I didn't I assume they would still be able to access the internet? How would I then apply the settings above to these hyper-v's using the single ip address assuming that individual routable ip's aren't required? –  asn187 Jan 6 '10 at 10:38
    
Well you would need the host to have both an External and Internal IP address and for it to act as a gateway between the two networks –  Sam Jan 6 '10 at 10:52
    
In your opinion would it just be easier/better to have 4 different IP addresses. 1 for the host server and 3 for the hyper-v's? –  asn187 Jan 6 '10 at 11:16

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