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Can DHCP be given based on category of device?

We have a Windows R2 forest level AD. Our IP schemes are a mess and I want to change it. Was thinking of the following design,

10.X.0.0/16

I want the 3rd octet to be a "category" octet, so for example

10.101.40.X/16 where 40 = printers
10.101.60.X/16 where 60 = wireless devices
10.101.70.X/16 where 70 = Pcs
10.101.80.X/16 where 80 = laptops

Is this doable? Is there a way (the only way I can think is based on MAC addresses) where you can distinguish the DHCP allocation within a subnet based on pre-defined categories?
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Network_Padawan
Asked:
Network_Padawan
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2 Solutions
 
snickeredCommented:
This is very doable.  You'll need to separate your devices into VLANs then create a DHCP scope for each subnet.  
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Network_PadawanAuthor Commented:
But if I do Vlans then they arent all in the same subnet. If you see my ip scheme they are all /16 and are same subnets.
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snickeredCommented:
Ah, yes.  Sorry, I wasn't paying attention.

It looks like you could use option classes, unfortunately I've never tried such a configuration.  This may help: http://technet.microsoft.com/en-us/library/cc775694(WS.10).aspx.

I'd still suggest separating your devices into smaller subnets.  /16 is too big.  And with a /24 you could do what you're trying to do easily.
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Leon FesterIT Project Change ManagerCommented:
Here's your answer
http://support.microsoft.com/kb/240247/EN-US/

Some additional reading is available here:
http://www.slideshare.net/RockyS11/dhcp-option-6061ppt
http://www.scribd.com/doc/17602761/DHCP-Vendor-ID-Implementation-in-1-Series

I use this feature on my DHCP server to assign specific IP's to my VOIP phones and PXE-boot enabled devices.
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Network_PadawanAuthor Commented:
Awesome guys thanks!
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