I have to Migrate the Exchange 2007 from Old Server having Hardware Issues to New Server with Server 2012 OS & exchange Server 2013.

Please tell me about these Cases:

- Old Server with Exchange is a Domain Controller, and New Server is also a Additional Domain Controller. Old Server has Public IP Address So how to use this Public IP Address to New Server? as I don't want to remove old Server

- What are Procedure to Migrate from 2007 to 2013, Steps?

- I have Free Public IP Addresses, if i change the Public IP Address of the Exchange 2013 Server What are the Complications? Clients will face any problem or not? How to re-configure the Mx-Records etc?

thanks

The best solution is already suggested here ( https://social.technet.microsoft.com/Forums/windowsserver/en-US/07ab4e0e-466f-4206-958c-5f77e3d73eeb/migrate-and-upgrade-domain-controller-with-exchange-in-same-server?forum=winserverDS ) by bartolohunter & Ethan.

Moreover, If you are looking for some more suggestions and references to accomplish this task then please have a look on below given links.

Please walk through this informative article which lets you how to use IP Address in both exchange servers, including all the recommended steps how to migrate from exchange 2007 to exchange 2013: http://www.petenetlive.com/KB/Article/0000788.htm

Also have a look on this blog which will show you the proper configuration of URLs for Proxy and Redirection - Exchange 2007/2013 Co Existence URLs

You can also take help from this earlier discussed thread i.e. OWA Coexistence 2007 and 2013

Besides all above, If you wish to accomplish this task automatically, you may try this automated tool i.e. http://www.exchange2007to2013migration.exchangemigrationtool.com/ to get real-time coexistence between two Exchange Servers during the migration period.

Hope it helps you!

Hi,

Generally, the Exchange server is not recommended to installed in the same server with Domain Controller:

https://technet.microsoft.com/en-us/library/ms.exch.setupreadiness.warninginstallexchangerolesondomaincontroller(v=exchg.150).aspx

For Exchange side, if you want to migrate from Exchange 2007 to Exchange 2013. Both Exchange 2007 and Exchange 2013 should be published to the Internet (public IP). We can update the DNS configuration to:

Internal DNS

Record/Type	Comment
mail.contoso.com	Point to Exchange 2013 server
autodiscover.contoso.com	Point to Exchange 2013 server
Legacy.contoso.com	New record points to Exchange 2007 Server

Public DNS

Record	Comment
mail.contoso.com	Point to TMG Listener
autodiscover.contoso.com	Point to TMG Listener
Legacy.contoso.com	New record Point to TMG Listener

For detailed steps about migration from Exchange 2007 to Exchange 2013, please refer to:

http://blogs.technet.com/b/meamcs/archive/2013/07/25/part-2-step-by-step-exchange-2007-to-2013-migration.aspx

Regards,