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Specifying "Preferred" Domain Controller for XP workstations

Hi - Need some help!

I have got a 2003 domain with XP Pro clients - a tiny section of this domain is running at a remote site with a very low bandwith link to the main network (2mb).  There is a Domain Controller at the remote end of the low bandwidth link to help serve the workstations login / AD requests and Active Directory replication is working fine... but is there somewhere I can specify that the XP stations MUST use the DC which is closest to prevent traffic going over the slow link.  

Any help would be really appreciated (This was very obvious in the old days of NT / Poledit!!)

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MostlyConfused
Asked:
MostlyConfused
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2 Solutions
 
MostlyConfusedAuthor Commented:
I forgot to post that all users (at remote office) roaming profiles and home directories will be saved at the local DC at remote site.  
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Dave_DietzCommented:
This is where Sites come into play.

Are the users at the remote end of the slow link on a different subnet than the rest of the users?

Dave Dietz
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map000Commented:
check that the remote dc is a global catalog
if it's in different subnet (and probably is), if you have a site created for that subnet, than the authentication will be solved locally
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MostlyConfusedAuthor Commented:
Yes - they are in a different subnet - The Domain Controller at remote site has two NIC's (one looking back at the router > Main Site for AD replication) and the other serving the XP clients

Main network is on 172.16.*

Remote network is on 172.17.* (using a 22 bit mask)
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map000Commented:
have you created a site (in AD sites and services) for that network?
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MostlyConfusedAuthor Commented:
I have only one Global Catalog at the moment and that is the main DC for the network.  Should I make this remote DC a Global Catalog also?
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MostlyConfusedAuthor Commented:
No I have not created a Site for it.
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Dave_DietzCommented:
Make the remote DC a GC and create a site for the remote subnet and move all the remote office machines into it - should get you going in the right direction.....  :)

Dave Dietz
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map000Commented:
and associate the site with the subnet of the remote site
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MostlyConfusedAuthor Commented:
Many thanks for your comments Dave and Map000  -  I am going to try this first thing when I get in tomorrow, I'll let you know how it goes.

Cheers

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MostlyConfusedAuthor Commented:
Thanks to both of you - that worked.

I split the points between you - Hope that is ok :)
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