Solved

Move DHCP from 2000 server to 2008 server

Posted on 2012-03-09
8
356 Views
Last Modified: 2012-08-13
We are trying to migrate our DHCP service off of an old Windows 2000 server, onto our newer Windows 2008 server.

I have followed the steps from this link found in similar questions:
http://blogs.technet.com/b/networking/archive/2009/11/09/how-to-migrate-a-dhcp-database-from-windows-2000-server-to-windows-server-2008-or-windows-server-2008-r2.aspx

Everything seems to have worked fine.  When I open DHCP in the Windows 2008 server, everything seems to have imported fine.  I authorized the server (I have the little green up arrow in the white circle.  All the data looks correct.  I disabled the DHCP service on the old Windows 2000 server.  (Unauthorized it as well).

Except when I turn on a workstation, and try to do a ipconfig /release then ipconifg /renew, I get an error message on the workstation saying that it can't find the DHCP server.

Any thoughts?
0
Comment
Question by:tails71
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 2
  • 2
8 Comments
 
LVL 6

Expert Comment

by:Patrick Tallarico
ID: 37703556
0
 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 37703565
0
 

Author Comment

by:tails71
ID: 37711640
Articles were not very helpful.  

Here is some additional info.  There are two scopes identified in the DHCP server.  Neither has any reserved addresses.  Anything with a static IP has been given an IP address outside of the scope.  

The orginal DHCP server is a file server running Windows 2000.  I have installed the DHCP service on our DC for that site that is running Windows 2008 32-bit.
0
Edgartown IT Case Study

Learn about Edgartown's quest to ensure the safety and security of the entire town's employee and citizen data. Read the case study!

 
LVL 59

Expert Comment

by:Darius Ghassem
ID: 37712336
Alright did you go through the process again?
0
 
LVL 6

Expert Comment

by:Patrick Tallarico
ID: 37712341
Have you tried to set up a single DHCP scope from scratch just to test it?  You could set it for a single IP address, just to see if the DHCP server is having problems with the imported settings, or just in general.

Have you attempted any packet capture to see if DHCP is broadcasting at all?
One option to do that is wireshark, and here is some info from them about DHCP and their product...
http://wiki.wireshark.org/DHCP

With your two scopes, I am assuming that these are on different subnets???

On an outside chance, you may want to check this out and see if this article has any bearing.
http://fullparam.wordpress.com/2011/04/13/your-windows-20032008-dhcp-server-can-only-realistically-have-one-scope-per-physical-nic/
0
 

Author Comment

by:tails71
ID: 37714809
The two scopes are on two different subnets.  The DHCP server is currently using only one NIC, and that IP address is on our Server VLAN (a third VLAN).  I will try and hook up another NIC tonight to one of the VLANs identified in the scope.
0
 

Accepted Solution

by:
tails71 earned 0 total points
ID: 37720840
I made a discovery yesterday.  On our core switch (Cisco 3500), we and there was an IP_Helper-Address entry listed for both VLANs  that was pointing to our old DHCP server.  I updated the IP Helper-address to point to our new DHCP server, and that solved the issue.
0
 

Author Closing Comment

by:tails71
ID: 37736786
After testing the solution, I was able to successfully release and renew the ipconfig on multiple machines on both VLANs.
0

Featured Post

Use Case: Protecting a Hybrid Cloud Infrastructure

Microsoft Azure is rapidly becoming the norm in dynamic IT environments. This document describes the challenges that organizations face when protecting data in a hybrid cloud IT environment and presents a use case to demonstrate how Acronis Backup protects all data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Sometimes drives fill up and we don't know why.  If you don't understand the best way to use the tools available, you may end up being stumped as to why your drive says it's not full when you have no space left!  Here's how you can find out...
A safe way to clean winsxs folder from your windows server 2008 R2 editions
This tutorial will walk an individual through configuring a drive on a Windows Server 2008 to perform shadow copies in order to quickly recover deleted files and folders. Click on Start and then select Computer to view the available drives on the se…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …

740 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question