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move dhcp from 2008 32-bit to 2008 R2

Posted on 2010-09-02
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Last Modified: 2012-05-10
I'm having a problem moving the config and database from a 32-bit 2008 DC running our DHCP to a new 2008 R2 DC.  I don't want to the use the laborious MSFT Migration tools because this is a different IP address on this box and I don't want it changed.  I have tried netsh dhcp server import / export which seems to be the most basic, but I get "Error while importing option "44.".  

It's ok if we need to do ipconfig /release /renew - only about 30 desktops with engineers at every desk.

What's the best way to handle this?  Thanks
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Question by:dvanaken
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Expert Comment

by:Krzysztof Pytko
ID: 33586239
When you have this error. Did you disable DHCP server service before you import settings? You have to disable that service first and the you can import them. After that run DHCP server service again
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Expert Comment

by:robbe
ID: 33586329
You can use netsh to export and import the DHCP configuration:
support.microsoft.com/kb/281626
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by:robbe
ID: 33586343
ok sorry did'nt read the question well
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by:dvanaken
ID: 33586345
See my post - I tried that and get an error on importing
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by:Krzysztof Pytko
ID: 33586440
OK, but did you disable DHCP server service on 2008 R2 before you start import process?
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Author Comment

by:dvanaken
ID: 33586542
If I stop the service, I get "Unable to determine the DHCP Server version..."  technet says the service must be running to import settings.
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by:robbe
ID: 33586581
Can you try to move only the scope you want to move ?

Code:
netsh dhcp server export C:\dhcpcb 128.1.0.0

Code:
netsh dhcp server import C:\dhcpcb 128.1.0.0
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Accepted Solution

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dvanaken earned 0 total points
ID: 33586610
I found the problem - Scope option 44 was conflicting, I deleted it from the new scope and all imported ok.
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Expert Comment

by:pozlu0
ID: 35107938
Thanks for your reply.
The problem is that I used the netsh dhcp server export and import me error. I think it is a problem with the path of the db server to start is because the c: on the new system is the resource of the cluster d:
I use netsh dhcp dump to export andnetsh exec to import  but I can save only the structure and not the data.
Regards
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