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Old 08-06-2007, 11:11 AM   #1
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DHCP migration HELP!

hi guys,

recently started a new job and they use a Linux DHCP box. Debian.

I have been asked to investigate migrating this DHCP to a Windows Server DHCP

could any of you guys give me any tips links or anything.

Im very new to linux so im not to good with it

Thanks for the help

Old 08-06-2007, 12:29 PM   #2
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All you have to do is sto the DHCP service in linux and then start it in Windows.
Old 08-06-2007, 12:33 PM   #3
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1. Turn off Linux DCHP daemon
2. (optional) Configure Windows DHCP daemon
3. Turn on Windows DHCP daemon
4. ???
4. Profit!
Old 08-06-2007, 11:41 PM   #4
Registered: Dec 2003
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There can be more to it than just turning off one server and starting another.

A few things to think about.

You may want to copy the leases from the Debian to Windows server. Otherwise your Windows server may hand out IPs that were already leased, and still active from the Debian server causing IP conflicts. If you have a small number of hosts you could possibly get around this.

For example lets say if the DHCP server is only responsible for 30 hosts in a /24. If your Debian server is currently configured to hand out IPs from - you could modify this scope before the change so it would only hand out IPs -, and then configure your Windows server to have - for its pool of addresses. Then wait for leases to expire and verify all hosts are in the - range. Then turn off the DHCP daemon on the Debian server, and start up the Windows server.

Once the leases start to expire from the debian server they will eventually broadcast discovers and pick up the new server.

If you have DHCP relays configured for any subnets they will need to be updated to forward to the Windows server if it has a different


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