Change IP of Secondary 2008 Domain Controller running Exchange 2007

We have a Windows Server 2008 DC running Exchange 2007 that needs to be moved back to a customer's location. Since this is just a secondary DC can we easily change the IP address to their new public IP at their location. Anything special, DCPROMO etc. that needs to be done before changing the address?
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So it was joined to the domain and then brought to your location and now it will be moved back?

Nothing special before, but after you will have to run:

ipconfig /registerdns and dcdiag /fix
crhill77Author Commented:
No, it was created here at our location and joined to their domain here. Their DC resides in our managed server area with a direct link T1 between us and them. They now want to move this DC back to their location to hook up to their onsite tape drive. There is another secondary DC at their location as weel that has a private IP into their local network.
Ok, I see.

Yeah, you will just have to run the two commands I listed above when you move it back to the proper addressing. Those will make sure all the records in AD and DNS are set to the new IP.

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