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Re-IP of network

Posted on 2006-05-24
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Please see this post as it has to do with Exchange also.
http://www.experts-exchange.com/Operating_Systems/Windows_Server_2003/Q_21862237.html 

Thanks,
Mike
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Question by:mcrossland
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flyguybob earned 2000 total points
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If Exchange is not installed on an Active Directory domain controller, then you should not have too many problems.
When you change the IP of the AD domain controller, provided it is the DNS server, you will also have to change the DNS entries on all of the other servers to point to the new DNS server.
It may take a few reboots for Active Directory to register the new IP addresses, and you may have to clean out the old IP addresses in DNS.

From the Exchange side, once it can talk to DNS and Active Directory, it is happy.  You may have to do ipconfig /registerdns a few times, and remove the old IP address entries for the server in DNS.

From the outside, you are going to have to update the NAT translation at firewall to the Exchange server's new IP.  Or, if you have an intermediate server, such as an Ironport, you are going to have to update the Ironport's internal side to forward to the proper IP address for the Exchange server.

Doing a re-ip on Exchange is pretty painless if you have planned for it and if you have tested it in a lab.
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