Stupid newbie DHCP question

Hello,

As you can see in the attachment, that's my current DHCP setup.
We're running out of IPs (I reserved 192.168.1.1 - 192.168.1.50 for servers, devices, etc) so I changed the subnet to 255.255.255.0. However, the new leases are still in the 192.168.1.x range. How can I let it go into the next 192.168.2.x range?

Thanks!
dhcp.jpg

Attached Images

• dhcp.jpg (21.9 KB)