new subnet needed on SRX220H2

Hi there,

I need to set up a new subnet because I am being out of IP address.

Now we use 10.196.24.X network with 255.255.255.0 subnet mask, gateway 10.196.24.1.

I need to set up a new range like this: 10.196.25.X but pointing to the same gateway (10.196.24.1).

I want to activate the DHCP pool from 10.196.25.10 ~ 10.196.25.240

How can I do that? I am very new on Juniper devices.If possible please tell me how to do that using the J-web interface, if not possible, please send me the commands.

I have a SRX220H2 with JUNOS Software Release 12.1X44-D15.5.