Assign DHCP IPs for specific MAC prefixes on Windows Server 2008 R2

Question

I'm running Windows Server 2008 R2 for my DHCP server. We are about to switch over to a VoIP system and Cisco VoIP phones. I would like to assign a specific range of IPs to these phones which will have a common MAC prefix (ex. 00:01:02). I would prefer to have them in the same scope as our computers if possible. Does anyone have any suggestions?

Answer 1

You can use reservations to map specific IP addresses to specific MAC addresses, but there is no way to select a range of addresses (or even a scope) based only on the MAC prefix. I would suggest you place those devices on a separate network segment (physical or VLAN) and use a DHCP scope for that; this will also come a lot handy if/when you want to apply firewall and/or QoS policies to those devices.