Solved

Secondary DHCP server

Posted on 2007-12-06
6
1,180 Views
Last Modified: 2010-04-21
I have a network that currently has two domain controllers.  One is a Windows 2000 server and the other is a 2003 server.  I am planning on replacing the 2000 server with a new 2003 server, and then both domain controllers will be Windows 2K3.

Currently, all of my DHCP requests are handled by the 2000 server.  I would like to split the DHCP requests up between two servers and so I installed DHCP on my 2003 server.  I configured identical scopes on the 2K3 box, and then made exclusions on each so that the two servers don't overlap.  The 2000 server is set to handle addresses from 192.168.1.50 to 192.168.1.150 and the 2003 server handles 192.168.1.151 to 192.168.1.254.

My problem is that when I start the DHCP service on the 2003 box, the DHCP service on the 2000 machine seems to go down.  Is there a reason for this?  Is there a setting I am not seeing or performing?

Thanks.
0
Comment
Question by:bkesting
[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
6 Comments
 
LVL 13

Accepted Solution

by:
2hype earned 100 total points
ID: 20424355
Are they SBS servers.  I think SBS only alows 1 dhcp server.  If it detects another it will disable itself.
0
 
LVL 13

Expert Comment

by:2hype
ID: 20424368
There should be a message in your event viewer with an error along the lines that it detected another dhcp server.

If they are not sbs server are there any errors in the event viewer?
0
 

Author Comment

by:bkesting
ID: 20425503
The 2000 server is a SBS.  I haven't had a chance to check the logs yet, I'll do so in the morning.  I did not realize that SBS only allowed one DHCP server.  
0
MS Dynamics Made Instantly Simpler

Make Your Microsoft Dynamics Investment Count  & Drastically Decrease Training Time by Providing Intuitive Step-By-Step WalkThru Tutorials.

 
LVL 1

Expert Comment

by:lesdow
ID: 20426145
You should really only have one DHCP server on a network. Have DHCP running on one or the other. If you would prefer not to select one of the servers for whatever reason and you have a router on your network use the router as the DHCP server while you move from one server to the other.
0
 
LVL 12

Expert Comment

by:StuFox100
ID: 20426397
Are both DHCP servers authorised? This may cause the issue.
As for running two DHCP servers, this should work. The server that is first to respond will provide the IP - may organisation run two for failure over - the spilt is usually 80%-20%
Cheers
Stu
0
 

Author Closing Comment

by:bkesting
ID: 31413283
That was the problem.  I didn't realize that SBS only allowed one DHCP server on the network.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

This article explains the steps required to use the default Photos screensaver to display branding/corporate images
This article demonstrates probably the easiest way to configure domain-wide tier isolation within Active Directory. If you do not know tier isolation read https://technet.microsoft.com/en-us/windows-server-docs/security/securing-privileged-access/s…
Windows 8 comes with a dramatically different user interface known as Metro. Notably missing from the new interface is a Start button and Start Menu. Many users do not like it, much preferring the interface of earlier versions — Windows 7, Windows X…
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …

738 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