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Adding a secondary IP address to a Windows 2003 server

Posted on 2009-02-24
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Good afternoon,

I have 2 WIndows 2003 servers (A&B) running IIS and hosting web applications.
I have 3 external clients with site-to-site VPN connections that point to server (A)
and 2 external clients with site-to-site VPN connections that point to server (B)
We want the clients that use server (A) to migrate to server (B) without reconfiguring the VPN connections or making DNS changes at the client sites.

If I decommissioned server (A) and added a secondary IP address from server (A) onto server (B) would this work?  Ie. Server (B) would be listening on the IP addresses from (A) & (B)

I hope the above makes sense!

Kind regards,
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Question by:FirstAsssit
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by:Bryan Butler
ID: 23723020
I think it will work, but it depends on how your VPN/authentication is setup.  If it is with an IP address only, then that will work.  If it is something in addition to it, or something other way, then it might not work.  You may have to change VPN settings.
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by:FirstAsssit
ID: 23723179
If the server has 2 ip addresses allocated to it (on the same NIC) and the client accessed the server on one of them, would the traffic go back on the same IP address or could it go back via the other one?
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Bryan Butler earned 1000 total points
ID: 23723996
Same IP.  Security.
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