I am restructuring our network here after receiving a T1 line a couple of weeks ago. The ISP gave me 1 interconnect IP along with a few public ip's. They gave us a gateway which they call a router. My plan is to setup a dmz with a few servers utilizing some of the public ip's. I am hoping to keep our inside LAN using 192.168.2.0/24. I am assuming that i wil have to setup static routes.
Now i was looking into getting CIsco ASA 5510 FIrewall or the Cisco 2801 Router to conect to the ISP Gateway which is essentially an RJ-45. From one of these 2 devices they will be connected to either a Dell Powerconnect Gigabit Layer 2 Switch or a Dell Powerconnect Layer 3 Switch.
Would this work well? To get the ASA 5510, Setup the Static Routes, get the layer 3 switch and point all internal users to use the layer 3 switch as the default gateway? I plan to also let the dmz communicate to the internal lan as well.
If someone has a better setup, that would be greatly appreciated. Thanks!