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DNS/DHCP Issue Windows 2003

Posted on 2006-10-28
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Last Modified: 2010-03-19
Hello,

I just set up a local domain on my Windows 2003 box, Altec.Local. In the process of creating Active Directory, windows install and configured a DNS & DHCP Server.

This box is connected to a router that automatically distributes a network IP Address (duh!). Now, when I go to the command prompt and check ipconfig the IP address showing up is NOT in the router's range. The routers range is 192.168.2.x, however IPCONFIG is returning a range of 192.168.0.x. Therefore, my internet does not work & I cannot get updates.

Any help would be greatly appreciated!

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Question by:ChrisH3
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Machin__Shin earned 500 total points
ID: 17827447
For a server you should not have it getting a DHCP address, change it to static and put it on the same subnet as your router and configure DHCP on your server. Disable it on your router. Otherwise you will have issues on your server automatically disabling DHCP. Make sure you have the forwarders on your DNS set to your ISP DNS.
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by:ChrisH3
ID: 17827486
There's no option to disable DHCP on my router, the only thing close to it is blocking the IP Address itself - which doesn't help us too much. Are there any other alternatives?
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by:Machin__Shin
ID: 17827517
Is there a way to change the DHCP to Relay on the router? if so use that to relay the server DHCP. It'd be the first router I heard about that your couldn't disable DHCP on, is it a cable modem or something?
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by:ChrisH3
ID: 17827527
Its a Belkin Wirelss Mimo, perhaps I'm missing something. The only thing under DHCP that it says is the connect computers/clients with their Mac Adresses.
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by:Machin__Shin
ID: 17827556
can you post a screen shot
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by:ChrisH3
ID: 17827578
Okay, I found the option to turn the DHCP Server off, it was burried under some random settings. I right clicked the network connection and chose to use a static IP, with the IP Address 192.168.2.4, which falls in the router's range. I also placed it in the same router subnet. Now would should I do as far as the DNS and DHCP are concerned? Im new to this so the specifics make it much easier.
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by:Machin__Shin
ID: 17827621
DNS should be set as the server itself under the network connections.
 In the DNS console right click on the server go properties->forwarders-> and type in the IP addresses of your ISP's DNS servers or your router, but I always prefer ISP DNS.
For DHCP go into the console, right click on the server and go all tasks and go create new address pool (or just follow the wizard instructions) setting up. When you have finished with that right click on the server and authorise it then right click again and activate it.
If you have already configured it and the address pool is like 192.168.0.x then I'd change that one instead to suit your network. Make sure you list the DNS as the server.
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by:Machin__Shin
ID: 17840476
how are you getting on?
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by:ChrisH3
ID: 17844554
I was able to get it working. I was actually having DHCP conflict with my VOIP Box. I was assigning IP Addresses in the VoIP Range, and the server was taking x.x.x.1, which was the default VoIP assignment. As a result, I bumped the server address up to x.x.x.2 and placed a reservation in DHCP for x.x.x.1. Everything works well now. I told the router to act as a wireless access point to reduce the chance of a collision.

So far so good.
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