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DHCP

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18 replies

by corky132

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I've just setup Microsoft's DHCP server (for the first time ever, i might add).. The program installs fine, I've given it our normal IP address (and verified they are not being used).. but when i switch a client to DHCP, the server doesnt respond.. I've verified the service is running (rebooted several times).. it's in the same subnet, not across any routers or anything like that. In fact, we were using another DHCP program on that same server (netid)..

What else do i need to do to make this DHCP server active?

Thanks in advance.

18 replies

by spydergst1

Did you configure the wins and dns settings on the client? Be sure to set the DNS search order.

by spydergst1

Did you configure the wins and dns settings on the client? Be sure to set the DNS search order.

by cesar diaz

Double check the subnet mask to verify that both PCs know they are on the same subnet. Then make sure the client PC has a way to resolve the servers name ie WINS, DNS, LMHOST etc. then ping the server by both hostname, computer name and IP address. type ipconfig to make sure the DHCP server is listed as the right one. Last try "ipconfig /release"

by corky132

both pc's are in the same subnet.. in fact, dhcp works with a different program (we just dont have it licensed, therefore, we're trying to use microsoft's version)

by allan

You shouldn't need to worry about the wins and dns on the clients. The DHCP Server is supposed to give them that.
If the client still has an IP address, it won't try to contact the server. Run ipconfig, release and then renew. See if you get an error about not finding the dhcp server. If you do, check the ip address on the servers NIC and make sure it is Static.

by gadawg

Can you give us more information on how you setup IP configuration during DHCP setup? I'm curious about your scope...in particular is the server's static address outside the scope. Any more info on all settings would be helpful (subnet mask, server static address, scope addresses etc. Thanks.

by gadawg

Could it be that the other DHCP program has left some residual problems? How was it disabled?>>>>>>"In fact, we were using another DHCP program on that same server (netid).. "

by corky132

we've uninstalled the program, and i've tried it on a different server..

scope is 10.2.1.2 to 10.2.254.254

by ejazz

Reinstall the Service Pack you are using for NT. This should have been the first thing done after installing any new service that came from the original NT disk. By theory, only one DHCP server can serve in one subnet. So try turning off the other DHCP server. Also some routers will not pass a DORA from a client. Considering the Microsoft DHCP server is properly installed and configured the client should pick the IP approx. not more than 10 seconds after you do IPCONFIG /renew.

by mgmmcp

Corky,

Check what service Pack you are using. DHCP will not work with anything lower than 3. I had the same problem when I set it up and installed SP4 and it worked fine.

by vyun

Make sure that the DHCP IP range you are using does not conflict with any Static addresses that are being used on your network. Client's running DHCP search for DHCP server's at startup. If it cannot find the DHCP server make sure that they are on the same subnet by checking the subnet mask.

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