Solved

adding DHCP server to AD domain with Static IP workstation

Posted on 2010-11-29
10
370 Views
Last Modified: 2012-05-10
I have a windows Network running AD 2008.
All of the workstations have static IP addresses.  I now want to change to DHCP.

the dns server has a bunch of dns entires.  most are old and have out of date information.

is there a way to add DHCP and have it find the current PC's and their IP addresses or do I just need to enable DHCP and walk around to all of the PC's and change them to DHCP so they get an address.

I wanted to do it an easy way.  My fear is if I create a scope and then just start swtiching pc's from static to DHCP it will dish out IP's that are in use and cause a mess.
0
Comment
Question by:lefty431
  • 5
  • 5
10 Comments
 
LVL 70

Expert Comment

by:KCTS
ID: 34236115
do I just need to enable DHCP and walk around to all of the PC's and change them to DHCP so they get an address. - YES
0
 
LVL 1

Author Comment

by:lefty431
ID: 34236126
what about Scavenging in DNS?  then I can set a scope that doesn't conflict with any static"s?  the problem is that there are static addresses are spread out...
0
 
LVL 70

Expert Comment

by:KCTS
ID: 34236143
You can bite the bullet delete any DNS record manually and/or impliment scavenging,  see http://technet.microsoft.com/en-us/library/cc757041(WS.10).aspx
0
 
LVL 1

Author Comment

by:lefty431
ID: 34236145
if I delete the dns record manually, with the once that are alive come back?  or do I hose everything?
0
 
LVL 70

Expert Comment

by:KCTS
ID: 34236150
All you will lose are the DNS records - the clients will re-register automatically - and/or you can also set DHCP to register the records for the clients in DNS
0
Zoho SalesIQ

Hassle-free live chat software re-imagined for business growth. 2 users, always free.

 
LVL 1

Author Comment

by:lefty431
ID: 34236158
so the end result is dns will populate with clients that are active....

that will help clean a bunch up.  if that works..  then I can find a few gaps and create some scopes.  once everything is set to dhcp I can get PC's groups together...
0
 
LVL 70

Expert Comment

by:KCTS
ID: 34236166
Yes - but wait - why do you want multiple scopes - that is not easily done, by default a DHCP client wll gt the next available address - if you want to control which machines get which addresses then you are going to have to use reservations (not very practical for a lot of machines), or you will have to impliment option classes, which can get quite involved
0
 
LVL 1

Author Comment

by:lefty431
ID: 34236191
Just don't want dhcp to give an address that is already static
0
 
LVL 70

Accepted Solution

by:
KCTS earned 500 total points
ID: 34236197
If its not practical to chnage all the machines over in one hit, then set up a scope with a limited range of adresses to begin with and extend the scope as you get rid of the static clients.
0
 
LVL 1

Author Comment

by:lefty431
ID: 34236268
that is what I want to do..  the problem is that according to DNS most of the subnet is used.  but really there are only about 60 PC's and 10 Printers....

so if I delete the dns entires and wait until they all check back in (by the way, how often is that) I will be able to get some ranges to do what you stated above....
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

Is your Office 365 signature not working the way you want it to? Are signature updates taking up too much of your time? Let's run through the most common problems that an IT administrator can encounter when dealing with Office 365 email signatures.
This article shows how to deploy dynamic backgrounds to computers depending on the aspect ratio of display
This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
This tutorial will walk an individual through the process of transferring the five major, necessary Active Directory Roles, commonly referred to as the FSMO roles from a Windows Server 2008 domain controller to a Windows Server 2012 domain controlle…

863 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

Need Help in Real-Time?

Connect with top rated Experts

20 Experts available now in Live!

Get 1:1 Help Now