Multiple Subnets in Domain Controller

Hi All,

I have two subnets 192.168.1/24 and 192.168.100/24 i want to set up a new domain controller on windows 2003 standard server r2 and want some help.  Is this possible to do and what is the best approach to create this? My server has multiple Nics if needed.  What is the best and easiest solution? I have done some research and a few people suggest that the router does the routing. But I would prefer a DC which can see both subnets.

Any help would be great.

Thanks.
hsood2001Asked:
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SysExpertConnect With a Mentor Commented:
You can have the DC see both networks, but without routing, I think.
Depends on what you want to do really.

Set up a class B subnet as 192.168.x.x and it should be able to see all of it.

I hope this helps !
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clw3388Commented:
You would most likely need a relay agent but yes you can have 2 subnets on one dhcp server...
http://technet.microsoft.com/en-us/library/cc758865%28WS.10%29.aspx
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Mike KlineCommented:
Mutlihomed domain controllers are generally not recommended.   you can take a look at the info in the TechNet article and Ace's excellent blog for more info (you may have seen those already)
 

http://support.microsoft.com/default.aspx?scid=kb;en-us;272294

http://msmvps.com/blogs/acefekay/archive/2009/08/17/multihomed-dcs-with-dns-rras-and-or-pppoe-adapters.aspx

Thanks

Mike
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hsood2001Author Commented:
A bit more info for you both networks are on different switches and can see the internet. So if i use 255.255.0.0 subnet what else would i need to configure?  So basically i setup my dc on 192.168.1.2 with subnet 255.255.0.0 then have both of the other networks on the same subnet and then phyiscally link them together, is this all i need to do?

Thanks for all you help.


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SysExpertConnect With a Mentor Commented:
That should suffice.

Not sure what services the server is providing ( DNS, DHCP , etc )

But in theory, there should not be any issues.

I would suggest doing at least a system state backup of any servers before doing this.

What other servers are there. What about DCs etc ?

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hsood2001Author Commented:
The services that this new domain controller will be hosting will be dhcp, dns thats about it really.  We have data servers, email not exchange, phone system. All we want to do is be able to see both networks with a single domain controller.  And for AD to host the required users etc.  There will only be one domain for the group.

Thanks,


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SysExpertConnect With a Mentor Commented:
Your DHCP range and subnet mask needs to be set accordingly, as well as any static IP machines, you will also need to change the subnet mask.

Once the subnet mask is changed, everybody will be able to see everyone else ( which is not always what you want )
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hsood2001Author Commented:
Good answer could of done with a bit more detail.

Thanks,
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