?
Solved

Decrease size of DHCP address pool

Posted on 2011-03-10
2
Medium Priority
?
1,802 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 100 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 100 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

Get real performance insights from real users

Key features:
- Total Pages Views and Load times
- Top Pages Viewed and Load Times
- Real Time Site Page Build Performance
- Users’ Browser and Platform Performance
- Geographic User Breakdown
- And more

Question has a verified solution.

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

A Cisco router can be configured as a DHCP Server. There are advantages and disadvantages in making your Cisco router work as DHCP Server. Almost all the features for windows DHCP can be configured on Cisco-based DHCP server. Some of the features me…
While rebooting windows server 2003 server , it's showing "active directory rebuilding indices please wait" at startup. It took a little while for this process to complete and once we logged on not all the services were started so another reboot is …
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …
In this video you will find out how to export Office 365 mailboxes using the built in eDiscovery tool. Bear in mind that although this method might be useful in some cases, using PST files as Office 365 backup is troublesome in a long run (more on t…
Suggested Courses

762 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