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I have recently obtained 5 static IP addresses from my ISP. I now want to install a Windows 2008 server 2008 with domain controller and DHCP roles and use these static IP addresses.

I have a DLINKwireless router, model DIR 301, a modem and my Windows 2008 R2 Server. The router is configured and uses 1 static IP address, but when I turn off the DHCP server on the router, I have no internet connection.

I then configure the server to use the 2 static IP addresses, but still I get no internet connection. The people on my ISP said I must have 2 static ip addresses, 1 for the router and 1 for the server.

The server is connected with an ethernet cable to the router. I want to install DC,DHCP, and DNS roles on the Windows 2008 R2 server.

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closed as off-topic by Magellan, Dave M, mfinni, Rex, Grant Nov 18 '13 at 18:42

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1  
Disable DHCP and DNS on the DLink. Enable it on the Server 2008 machine. –  tombull89 Nov 18 '13 at 17:42
    
I did that i got this error on the active directory Installation, A delegation for this DNS server cannot be created because the authoritative parent zone cannot be found or it does not run Windows DNS server. –  Rasmus Nov 18 '13 at 17:45
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You should be using private ip addresses on your servers. Use the ISP ip addresses for services you want to make available to the public (web, email, etc.). Then configure port forwarding on the router to forward those services from the public ip addresses to the private ip addresses. –  joeqwerty Nov 18 '13 at 17:52
    
Thanks joeqwerty. But what ip adress should i use on my server then, i cant use (automatic) ? I have my server connected with and ethernet cable to the router, not the modem –  Rasmus Nov 18 '13 at 17:59
    
You would benefit from having an experienced system professional do this configuration. You need to keep the public and private IP spaces separate as @joeqwerty notes. –  Dave M Nov 18 '13 at 18:06