Solved

DHCP error "This address is already in use"

Posted on 2004-03-31
1
1,518 Views
Last Modified: 2013-12-19
I have a large network (100+ nodes) on which I run Win2000 Server for DHCP. I had the lease time set to 21 days and for a year there was no problem. However, lately I've been getting a significant number of addresses with "This address is already in use" added to them in the description section. I reduced the lease time to 7 days and waited for the original 21 day leases to expire and the number of these has decreased, but I still have a dozen or so at any given time.

What is causing this and how can I fix it?
0
Comment
Question by:chrisfuzy
1 Comment
 
LVL 24

Accepted Solution

by:
SunBow earned 125 total points
Comment Utility
Have you had the subnet range inadvertently redefined?  Maybe people are hardcoding their addresses (policy enforcement) or possibly you have a rogue address provider, such as happened to at least one user when they got a new router.  Check the dhcp programs from the resource kit for finding rogues and stamp them out when found
0

Featured Post

Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

Join & Write a Comment

This is the first one of a series of articles I’ll be writing to address technical issues that are always referred to as network problems. The network boundaries have changed, therefore having an understanding of how each piece in the network  puzzl…
Resolve DNS query failed errors for Exchange
In this seventh video of the Xpdf series, we discuss and demonstrate the PDFfonts utility, which lists all the fonts used in a PDF file. It does this via a command line interface, making it suitable for use in programs, scripts, batch files — any pl…
You have products, that come in variants and want to set different prices for them? Watch this micro tutorial that describes how to configure prices for Magento super attributes. Assigning simple products to configurable: We assigned simple products…

771 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

9 Experts available now in Live!

Get 1:1 Help Now