Two DHCP scopes on one server
Posted on 2011-05-05
This is going to be a silly question, but this is the first time I've tried this, and it's not working.
I have a Windows 2008 R2 server configured as a DHCP server. It works fine with the existing scope setup for subnet 10.1.1.x/24. We recently got a new IP phone system,, and don't have enough IP's in this range for all of them, so my thought it to create a second scope of 10.1.2.x/24, and assign the phone to it.
I created the new scope on the existing DHCP server, and reserved all the phone MAC's an IP within this range. I then went onto the router/firewalll, a Sonicwall NSA 2400, and added this subnet to the existing port.
Then, we installed the new voicemail server, added it as 10.1.2.1. From any 10.1.1.x device, I can ping the voicemail server, and that 10.1.2.1 server can ping anything in the 10.1.1.x range.
Though, when turning on the phones, which are setup to gain IP's with DHCP, they don't take there assigned IP in the 10.1.2.x range, but an open 10.1.1.x IP address.
What am I missing to make this work?