Currently I have a shared T1 line which plugs directly into a hardware firewall (sonic wall), and then into my switch. I'm going to be switching to a business DSL line. The line was installed and I will be hooking it up myself. I was given a Netopia DSL modem which is more like a router because because it has wireless and four ports. Ive never directly worked with a switch and was wondering what steps I will need to take to change connections. Do I just plug in the modem and swap the T1 line going to the firewall with the the DSL line? will I have to manually change any settings? Edit: After a little more research I found out the Netopia 3347-02 has a built in firewall so I will no longer need the sonicwall firewall correct? So can I just remove the sonic wall and plug directly into my switch?