Help with reconfiguration of a /16 LAN

I inherited a Class B network years ago and am just now wanting to do a major overhaul.  Currently the LAN network is  It is currently just a flat network with servers and clients dispersed throughout.  I want to segment the network into the following categories: Servers (25ea now), Workstations (100ea now), Printers (30ea now), Utility devices (20ea now).  All of our wireless clients are connected on the outside of the firewall and are outside the scope of this question.  Our firewall is a WatchGuard device.

Should I rework the ip address scheme?  If so, can someone layout an example of what I should do?

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.

Ken BooneNetwork ConsultantCommented:
So I would move to a 10.10.x.0/24 network scheme is servers is user PCs is printers is utility devices

You can also likewise put servers on vlan 10, PCs on vlan 20, etc..  You get the idea.  This is just a sample.  With this setup you can migrate one part at a time.

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
I would agree with Ken, if that's really how you want to break it down. Depending on how your office is laid out, you might decide to do by floor instead of by type of device, but use a similar addressing scheme to what Ken proposed. When you say wireless, did you mean for internal users or guests?
Paul MacDonaldDirector, Information SystemsCommented:
To riff off what Ken posted, you can "reserve" some bits in case any segment grows beyond the 254 nodes a /24 mask allows.  So instead of... is servers is user PCs is printers is utility devices could do... is servers is user PCs is printers is utility devices

...which would let you use a /23 or /22 mask at some point in the future, which would let you have 510 or 1022 nodes on each subnet and the only thing you'd have to change is the mask.   Other values in the third octet could be used as well (8, 20, 56, 120  would leave room for a /21 mask and 2046 nodes per subnet, etc).  If you're not expecting significant growth it may not matter, but it may be something you want to plan for.
Answered sufficiently
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.