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Redirecting IPs on Windows Server 2008

We are migrating hundreds of sites from one server to another, each with their own IP, but the IPs cannot be moved. Thus, the sites will be getting new IPs. We need a way to route all requests that are sent to IP A sent to IP B.

So if someone connects on port 110 or port 80 on IP A, the server redirects the request to IP B.

Does Windows have something built in for this? If not, is there a free or cheap software for this job?
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weblocked
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weblocked
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1 Solution
 
David Johnson, CD, MVPOwnerCommented:
Ip addresses are complete addresses.. its like joe lives at 23 Main Street, Anytown, USA and moves to 24 Main Street, Anytown, USA, and Joe can go to the post office and have them redirect everything sent to joe at 23 Main to go to 24 main.. but items sent only to 23 Main will still go there.  If the city decides to split main street into east and west and 23 Main Street is now 5 Main West.  Humans are smart enough to know this but the Network is not set up to accept a change like this. In the short term you can make a change in some routers to make the change and route from one ip to another, but this is not a permanent solution as one time you may need to go to that ip address owned by someone else. (There are no spare ipv4 addresses out there they're all assigned to someone).. Original Internet Owners with Class A networks are being pressured to sell some of their ip addresses.

On the networks we use the Domain Name system.. Then its simple just change the DNS entry for Joe's Place from 23 Main to 24 Main.
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weblockedAuthor Commented:
I'm familiar with IPs, DNS, and routers. That is not my question. I need to do this through Windows(and not the router):

IP A is going to Server A for Website A. But Website A is now going to be hosted on Server B with IP B. If someone still tries to connect to IP A, I need Server A to redirect the request to Server B's IP, just temporarily so no visitors or connections are lost in the migration process. And the servers are Windows servers.

I just want Windows to redirect all requests for an IP to an external IP.
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David Johnson, CD, MVPOwnerCommented:
Do it with DNS is the only solution that I can think of.
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pgm554Commented:
If you are running W2K8,then windows is your DNS server and just editing the host table there
will route to any new IP address that you wish it to forward to.

http://www.itechtalk.com/thread1645.html
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weblockedAuthor Commented:
Thanks for the feedback so far guys. Unfortunately, many of the sites being migrated have the domain's DNS managed independently and thus only point their A-Record to the server for http, for example, or their MX record for mail.
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weblockedAuthor Commented:
Couldnt find a solution to solve problem.
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