IP Addr and NICs

I removed a NIC (Static IP) from one of our servers without releasing the static IP so when I assign the same IP to the new card it says that it's already been assigned to another one. It allowed me to assign the IP to the new NIC but where are the MAC addresses and  their associated NIC stored on the server?
ronfastI.T. DirectorAsked:
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Keith AlabasterEnterprise ArchitectCommented:
Not in such a way that you can release it really. However, the location in the registry will be hkey local machine, system, controlset001, services, <<the id of the nic>>, parameters, tcpip

Yes, you should go through the uninstall of a network card before removing it to ensure any local config files/drivers etc are removed but you can still do this from add/remove programs in control panel if it had specific software with it.

Regards

Keith
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SaineolaiCommented:
Select view and show hidden devices in device manager.  This often shows up removed devices.
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Keith AlabasterEnterprise ArchitectCommented:
You don't have to release a static IP. You may have a router, layer-3 switch or some other device though that has cached the mac/ip address from the original nic/ip combination.
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ronfastI.T. DirectorAuthor Commented:
So there's no entry in the Admin tools on teh server that stores the which IP addr is associated with a particular MAC address?
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ronfastI.T. DirectorAuthor Commented:
very cool! thanks!!
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Keith AlabasterEnterprise ArchitectCommented:
welcome & thanks :)

Regards
keith
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