I will first explain my original set up so i will be easier to understand where I am coming from.
We have an existing 25 port switch which I believe basically connects all our computers on the same network. We are not on a domain, and have to authenticate our connections to our server with username & passwords when we map the network drive. (I am trying to get everything converted over to a domain soon). Anyhow, for our internet connection, this is how I had our system set up.
From an ethernet port from the wall (snaked from our switch in the server room) I uplinked a BEFSX41 Linksys router to our existing network. This was done by plugging the ethernet cable from the wall into the 1st LAN port on the Linksys. Then on the WAN port on the Linksys, I had our DSL modem connected. Our internet is then shared over the network flawlessly.
We just received a Watchguard Firebox x20e wireless firewall router and I am trying to configure it. The same setup I used before is not working (and I doubted it would, it is a much more secure and advanced tool). However, there is also a port for an "optional network". I am not sure what this means but I am in the midst of researching this as well.
Does anyone have suggestions how to set up this Firebox similar to how my Linksys was set up? I will continue to search for answers while I await a response, thank you all in advance.