DHCP question

Our desktop guys did a move on a certain subnet without telling anyone and now all the IP's in the DHCP range are full. The new machines on the subnet cannot get IP's. So I deleted all the IP's and lowered the lease times, so that all the machines would request new IP's. Now im getting some Bad_Address's in the scope. I set the lease times to 10 min. Is this correct? Should these addresses clear once the conflicted machines request new IP's?
Thomas NSystems Analyst - Windows System AdministratorAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Toni UranjekConsultant/TrainerCommented:
Bad_Address's will eventualy expire. Set Conflict detection attempts to more than zero on Advanced tab of DHCP server (or IPv4 node) properties. This will prevent assignment of IP addresses which are still in use.
andreasSystem AdminCommented:
Also a power cycle of your switch may help, so you can trigger all machines to obtain new IPs via DHCP. So also machines will pull new IPs whose lease is due in hours or even days depending on how long it was set b4.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Active Directory

From novice to tech pro — start learning today.