Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

DHCP reservations return 24 hrs. after deletion.

Posted on 2006-11-07
6
Medium Priority
?
184 Views
Last Modified: 2011-09-20
I have a W2K3 standard server that is running DHCP, DNS, and A.D. This server is in a domain that has another D.C. replicating the same information. DHCP reservations are used along side a firewall so that only computers that are grated access can go outside the network. Unfortunately we have to continue using DHCP reservations. When you delete a reservation that reservation comes back in about a 24 hour period. This is fairly recent, but since we don't delete reservations daily, I can't tell precisely when this started. Also there are no warning or errors being produced by any of the servers regarding DNS, FRS, or DHCP errors. If you have any insight, I would be extremely thankful!
0
Comment
Question by:zhohulin
[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
  • 3
6 Comments
 
LVL 43

Accepted Solution

by:
Steve Knight earned 1300 total points
ID: 17891324
Well DHCP is standalone, not in AD but in the jet databases.  Have you got some procedure that dumps it out of one with NETSH and re-imports it to the other pehaps?

Just an idea but setup a scheduled task which does this every half hour or something for a day or so:

c:
cd \logs
rename dump.txt dump.old
netsh dhcp server dump > dump.txt
echo %date %time% >> changelog.txt
fc dump.txt dump.old >> changelog.txt

Then you can see any  changes to DHCP settings or reservations bein dumped out and compared with the last version.  At least that would narrow down WHEN it is happening and maybe lead to a scheduled task or backup / restore job?

Might be worth reconciling all scopes for now.

Steve
0
 
LVL 43

Expert Comment

by:Steve Knight
ID: 17891414
Actually if you did do that you'd need to delete the old log file too:

c:
cd \logs
del dump.old
rename dump.txt dump.old
netsh dhcp server dump > dump.txt
echo %date %time% >> changelog.txt
fc dump.txt dump.old >> changelog.txt

Steve
0
 
LVL 43

Expert Comment

by:Steve Knight
ID: 19401963
Accept dragon-it would sound like a good plan to me.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

Sometimes you might need to configure routing based not only on destination IP address, but also on a combination of destination IP address (or hostname) and destination port number. I will describe a method how to accomplish this with free tools. …
Trying to figure out group policy inheritance and which settings apply where can be a chore.  Here's a very simple summary I've written which might help.  Keep in mind, this is just a high-level conceptual overview where I try to avoid getting bogge…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB. How Percona can help Percona can help you determine if Percona Server for MongoDB is the right solution for …

604 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