Is there a way to force changes to DHCP scope from the server besides setting short lease times?

Posted on 2010-01-12
Medium Priority
Last Modified: 2012-05-08
Made some changes to a DHCP scope that i'd like to take place immediately.  Is there a way to push the changes through immediately short of a DHCP release renew on each client or setting the lease options to like 3 mins and then changing it back?  Thanks.
Question by:LB1234
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
LVL 96

Accepted Solution

Lee W, MVP earned 2000 total points
ID: 26295609
Reboot the workstations/DHCP clients.  There's no way to force changes out to workstations if they aren't rebooted and the lease doesn't expire.
LVL 14

Expert Comment

ID: 26295635
I think you hit on the options:

1. ipconfig release/renew
2. Kill the current lease

Per the link below you can use PSexec, though that might kill the LAN connections momentarily, which may be OK for you.

LVL 96

Expert Comment

by:Lee W, MVP
ID: 26295693
I'll clarify - I've seen issues, if memory serves with attempting to do release/renews on workstations remotely.  Often, they release but FAIL TO RENEW, leaving the workstation off the network until someone reboots it or renews the least.  And that would only POTENTIALLY work with workstations - not other network devices that are getting addresses from the DHCP pool.

Author Comment

ID: 26295702
Thanks much guys, helpful to know.

Expert Comment

ID: 26295707
You cant force clients to renew their IP through DHCP Server unless you manually decrease their leases.
Is a VBS a viable solution for your case?

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

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

Resolving an irritating Remote Desktop connection that stops your saved credentials from being used.
This month, Experts Exchange’s free Course of the Month is focused on CompTIA IT Fundamentals.
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
Suggested Courses

777 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