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How can I get my external NIC to dynamically change its IP address?

I have a Windows 2000 Server that has two NIC cards, one internal (with a static IP) and one external (hooked up to my Cisco router that has multiple external IPs). How can I get my external NIC to dynamically change it's IP address, without using the IP that it just had been assigned? Would a Windows 2000 DHCP server do the job?

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This would probably require a custom script to force a change to the configuration. DHCP is designed to re-issue the same IP address to the previous lease client in order to maintain a semblance of static configuration.

This was first published in November 2003

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