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Creating a scope within DHCP Manager.

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7 replies

by mak15

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Dear group,
I have a very short range set up in DHCP Manager in a simple LAN, now I want to increase the range, but need to recreate it. I don't want to take any risk, therefore, I post these questions below,
My questions are:
1: Can I create another scope with same info, including router, DNS address, subnet mask and the range? Will it conflict the original or I have to delete the original first?
2: I need to setup some static addresses. Will the exclusion range does the work or I can set it up some where else?
3: If I need to change the static IP address for the server and router, where can I do it?

Thanks for your time!

Best regards,

-Mak

7 replies

by madsg

Hi Mak

1. No you can?t make another scope with the same range, you have to delete the one you got now, rember to write all info on static addresses, routers and so on, down before deleting it.
2. Yes you HAVE to exclute the addresses from staticaddresses (if they are in the scope)
3. To change the static addresses on a win nt server, right click network neiborhood and select properties, select protocols and TCP/IP and click properties.

Best regards
Mads

by z28

1. You shouldn't have to create another scope, just modify the settings, increase the range of ip's.
2. You can specify reserved addresses or just exclude a range within the allocated range of ip's.
3. You change the ip in Network properties, you change the router ip in the scope settings in dhcp manager.

hope this helps,

Allen98Z

by nt/2000/sql

The change of range properties is somehow difficult. If you cannot make the change you want then simply drop the range and recreate it with the same parameters ( you need to exclude the static addresses allocated ). You should know that workstationscheck the validity of their DHCP configuration every time they start ( no matter how old is their config ). So right after that try to run ipconfig /release then ipconfig /renew or reboot all the DHCP configured machines that are on. Those that wereoff will get automatically a new config when they reboot. You still may have some conflicts during this transition but things will get ok as soon as you would have rebooted all the machines.

You should test this with machines from your productionsite to ensure it will work fine.

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