Hi, I’m running a small office using the subnet 192.168.1.0/24. We’re adding voip phones so I think I may be close to running out of ip’s if customers are using the wifi. I know I can expand the subnet but I want to have the phones on 192.168.4.0/24. Since I only have one router (simple DD-WRT) and Windows 2008 dhcp server I thought I could do this:
Win2008 DHCP scope1: 192.168.0.0/21 range 192.168.1.50-254 for pc’s and wifi.
I would use a filter on the phone mac addresses so the don’t join this range.
Scope2: 192.168.0.0/21 range 192.168.4.10-254 and I would only allow the phone macs.
I guess you guys know windows wont let me have 2 scopes on the same subnet. I could have two /24 subnets, but they couldn’t communicate with each other and the gateway would only be on one.