Replication between two DC's in different SN

August 30, 2010 at 19:39:29
Specs: Windows 2003.2008
I have Windows 2003 DC and Exchange 2003 running on main branch and I want to install Windows 2008 DC and exchange 2007 on Remote branch. VPN connections already exists between the two locations but after I make new additional DC on the same subnet at main branch and move the New DC to remote branch then change static IP I unable to make replication between the two DC's.
My question how can I make replication between two domain controllers in same forest while they are at different subnets.

Please help me with steps...


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#1
August 31, 2010 at 07:38:30
VPN connections already exists between the two locations but after I make new additional DC on the same subnet at main branch and move the New DC to remote branch then change static IP I unable to make replication between the two DC's.

There's your issue.......routing. You need to establish routes between the remote subnet and the local one where your DC resides and ensure connectivity in both directions.

If it were me doing this, I'd setup the remote site's DC with the appropriate IP address/subnet while still labbing it out in my main office to ensure replication between DC's (and their respective subnets) prior to shipping it to the remote location. If you have a router in your main office, this would be as easy as pie and would save you from finding yourself in the present situation.

Always, always, always lab and thoroughly test before shipping equipment off to remote sites. If you do, you'll find you travel a lot less under "emergency" situations.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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#2
August 31, 2010 at 08:22:48
I suspect the fix is simple

You need to add the other sites subnet in Active Directory under Sites and Services.
You have to update the host and ptr records in dns to match the static ip you are assigning for that server.


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