Migrate Domain controller 2003 to 2008

Hi guys,
on my organisation we have two Domain controllers 2003R2.
the idea is to migrate to Windows 2008R2 because we have some servers running on Forest level 2000.
the network information are :
Currently servers
DC1 Server 2003R2 IP 192.168.2.2 ( contain all the FSMO rules )
DC2 Server 2003R2 IP 192.168.2.2 (( just replication server )
New servers 2008R2
DC01 Server 2008R2 IP 192.168.2.3
DC02 Server 2008R2 IP 192.168.2.4
the idea is add DC01 to the domain that DC1 manage, and migrate the FSMO rolles to the DC1.
after i demote the DC1 i want to reuse it IP on the DC01 on the server.
my question is if i reuse it IP, all statice client will remain working ?
the reason why i need to reuse the IT is because i have about 100 static servers running. and can't change them in one day.
Does Windows 2008r2 support Foreste Level 2000 ?
to add the second replication server do i need to follow some tutorial for this ?
Please advice !

Hello,
for IP changes still the same answer as in
http://social.technet.microsoft.com/Forums/windowsserver/en-US/870c5999-070e-4825-9e8b-4ee50131bdf3/reuse-domain-ip?forum=winserverMigration
and for the functional level, yes. See
http://technet.microsoft.com/en-us/library/understanding-active-directory-functional-levels for the details which level can be used with which OS version.
But you should think about raising the levels at least to Windows server 2003 or is there a specific reason that you need Windows 2000?
Best regards
Meinolf Weber
MVP, MCP, MCTS
Microsoft MVP - Directory Services
My Blog: http://msmvps.com/blogs/mweber/
Disclaimer: This posting is provided AS IS with no warranties or guarantees and confers no rights.

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Can anyone recommend an all in one solution as to how to migrate everything from one server running Windows Server 2003 to a brand new server running Windows Server 2008?
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Hi,
Only error i got running dcdiag was the following
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Is this a problem ?
I would guess not since im not implementing a RODC ? Ref:
https://support.microsoft.com/en-us/kb/967482?wa=wsignin1.0
You can ignore it.
This posting is provided AS IS with no warranties or guarantees , and confers no rights.
Ahmed MALEK
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Hi Sam,
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Migration windows 2003 domain controller

how to migrate windows server 2003 domain controller to windows server 2008/2012

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You can follow along on Meinolf's page.
http://blogs.msmvps.com/mweber/2012/07/30/upgrading-an-active-directory-domain-from-windows-server-2003-or-windows-server-2003-r2-to-windows-server-2012/
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Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

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