Разные параметры DHCP
DHCP classid вам в помощь:

DHCP User Classes allow you to apply additional DHCP options, or a modified set of options, to certain clients on your network as identified by a user class id. For example, you may want to define a different gateway, DNS servers, or lease time for a subset of the computers on your network. This can be accomplished by setting a user class id on those clients (2000 and above) and then configuring that class id appropriately on the local DHCP server."

www.techrepublic.com/article/use-dhcp-class-to-deny-internet-access-to-unauthorized-machines/5498436
technet.microsoft.com/en-us/library/cc775694(WS.10).aspx
technet.microsoft.com/en-us/library/cc783756(WS.10).aspx

ну или гуглите по ключевому слову «DHCP classid»
Свитч VLAN'ы умеет?