Solved

Decrease size of DHCP address pool

Posted on 2011-03-10
2
1,640 Views
Last Modified: 2012-06-27
I am running a Windows 2003 DHCP server and have an existing scope with an address pool whose size Iwould like to decrease. Do I simply edit the scope's properties and change the starting and/or ending IP addresses or should I delete the scope and recreate it with the new address pool size desired? Will current clients with leases outside of the new pool range simply obtain leases from within the new range or will all existing leases be reissued?
0
Comment
Question by:bbeeep
[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
2 Comments
 
LVL 19

Accepted Solution

by:
Miguel Angel Perez Muñoz earned 25 total points
ID: 35096555
Add a exclusion range corresponding to IP that you need to remove from scope. Computers with IP assigned will keep until leases expire. Maybe you need to do a ipconfig /renew on that clients to force a IP renew in "new" scope.
0
 
LVL 3

Assisted Solution

by:dmf415
dmf415 earned 25 total points
ID: 35096587
create an exclusion instead.
To create an exclusion range in DHCP

   1.

      Click Start, click Administrative Tools, and then click DHCP. The DHCP Microsoft Management Console (MMC) opens.
   2.

      In DHCP, double-click the server name. For example, if the DHCP server name is DHCP-01.example.com, double-click DHCP-01.example.com.
   3.

      Double-click IPv4, and then, for the scope for which you want to create an exclusion range, double-click Scope.
   4.

      Click Address Pool. Right-click Address Pool, and then click New Exclusion Range. The Add Exclusion dialog box opens.
   5.

      In Add Exclusion, in Start IP address, type the IP address that is the first IP address in the exclusion range.
   6.

      In Add Exclusion, in End IP address, type the IP address that is the last IP address in the exclusion range, and then click Add.
   7.

      Click Close.
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering 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

Ever wondered why you had to use DHCP options (dhcp opt 60, 66 or 67) in order to use PXE? Well, you don't!
I've always wanted to allow a user to have a printer no matter where they login. The steps below will show you how to achieve just that. In this Article I'll show how to deploy printers automatically with group policy and then using security fil…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

749 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