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IP address conflicts

By Joe Leverone ·
We use assigned IP addresses on some machines, mainly printers, and DHCP resolution for others.
After a power outage, conflicts often arise when
a machine that uses DHCP gets an address that another machine has as an assigned address. Is it
possible to reserve the assigned address so that they won't be used for DHCP resolution? We have an
NT based network.

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IP address conflicts

by RJBoudreaux Contributor In reply to IP address conflicts

Yes, you can reserve specific IP addresses on the DHCP server running the instaled DHCP service.
On the DHCP server, go to Start, Programs, Administrative Tools, DHCP Manager. Highlight the active IP scope, then select Scope from the taskbar. Select Add reservations, this is where you will add the IP address that you want to remain reserved and static. You can also go to the Scope, Properties and edit the scope by adding an exlusion range of IP's that will be removed from DHCP use. Then you can assign static IP's within this exclusion range to the client PC's or printers that you want to remain as static IP.

I hope this brief overview helps!
ET

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IP address conflicts

by Joe Leverone In reply to IP address conflicts

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by HuckleberryHound In reply to IP address conflicts

You need to either assign static IP addresses from a range outside of the DHCP scope or create a reservation for them within DHCP.

To create a reservation you will need the MAC address of the computer or printer that you want the IP address to beassigned to.

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IP address conflicts

by Joe Leverone In reply to IP address conflicts

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IP address conflicts

by sigmapi71 In reply to IP address conflicts

Also you can exclude manually assigned IP addresses using DHCP Manager. Select your scope, go to Scope menu, Properties. In this window you can exclude your static addresses. Moreover, you can set the DHCP server to ping the address before assigningit. It's in Server properties and it's called Conflicts Detection.
Hope this helps.

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by Joe Leverone In reply to IP address conflicts

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by Joe Leverone In reply to IP address conflicts

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