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DHCP server is giving itself a second IP

By Rob Baugh ·
My DHCP server is setup with a Static IP. That IP is reserved for the DHCP. The DHCP however has set the IP to an inactive status and has given itself another, dynamic, IP. Does anyone know why it might be doing this and how to resolve the issue?

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DHCP server is giving itself a second IP

by antony_k In reply to DHCP server is giving its ...

Try to disable "DHCP Client" service on your server and reboot it.

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DHCP server is giving itself a second IP

by Rob Baugh In reply to DHCP server is giving its ...

It is disabled, but thanks anyway.

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DHCP server is giving itself a second IP

by alex In reply to DHCP server is giving its ...

Is your servers IP address in your current scope? Or have you changed your servers IP since you first created your dhcp server scope?

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DHCP server is giving itself a second IP

by Rob Baugh In reply to DHCP server is giving its ...

We have only one scope and the server is in it. We have not changed the scope. Thanks though.

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DHCP server is giving itself a second IP

by NetWill In reply to DHCP server is giving its ...

disable "DHCP client"

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DHCP server is giving itself a second IP

by Rob Baugh In reply to DHCP server is giving its ...

already done, that was the first suggestion, Thanks

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DHCP server is giving itself a second IP

by ComputerDude In reply to DHCP server is giving its ...

I would exclude the Static IP from the scope instead of reserving it. Then I would manually set the IP back to the excluded address and bypass DHCP altogether. Hope this helps,

Dave

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DHCP server is giving itself a second IP

by Rob Baugh In reply to DHCP server is giving its ...

OOOOPs, wrong word. The IP is excluded, not reserved. The DHCP server cannot "request" an IP from the DHCP. I have found a couple of things today. The server still responds to its excluded IP, and the second IP goes to a different MAC address. I deleted the second IP from the list of used IP's. I do not know where the second MAC address came from, there should not be a way for another machine with the same name to log on to the network, or can a machine request an IP even if another machine has the same name?

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DHCP server is giving itself a second IP

by dross In reply to DHCP server is giving its ...

My bet would be that the DHCP service is buggy. I was running DHCP on an NT box and it began handing out the same IP addresses to multiple machines. I had to switch to a linux box as it was an emergency fix. I have not gone back. Draw back is I cannot see how many IP address are in use, and cannot reserve IP addresses. I would try removeing all of the services pertaing to DHCP, IP etc. and reinstall it.

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DHCP server is giving itself a second IP

by Rob Baugh In reply to DHCP server is giving its ...

My DHCP server is also the PDC, DNS, Wins. Rebuilding DHCP, and any IP related protocals is not really an option right now. As far as moving to a Linux server, definatly not an option. We semi-recently moved the DHCP service to this machine, because the original DHCP server was doing the same thing. I really don't want to keep deleting and reinstalling the DHCP service.

Rob

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