Incorrect DHCP Subnet Mask

After all these years..... I have a customer that has a SBS 2011 server that is a DHCP server for their network. their subnet is 172.18.2.X with a subnet of but..... what I look at a couple of workstations that get their IP via DHCP their subnet mask is

There is no place in the DHCP scope options to set the subnet mask is there? How do you set it?
LVL 15
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.

Nadav SolomonCommented:
You configure the subnet mask when you create the scope, since the default gateway should be in the same class c mask as the workstations ip's (as long as you dont give ip's outside of it) there should be no problem.
If you do want to fix it just delete and recreate the scope.

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
Mal OsborneAlpha GeekCommented:
This needs to be fixed, IP broadcasts are broken which can cause some really weird network problems. You could either recreate the DHCP scope, or change the settings on the SBS box to match.
Nadav SolomonCommented:
Glad I could help, thanks for the feedback.
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

From novice to tech pro — start learning today.