Quote from LeeD:
You are welcome!
If you haven't got the router working yet, you probably need to contact the internet provider and ask them what settings they require. Performance is pretty much driven by the provider (and the length and quality of the cable). The modem is set up just to ensure compatibility.
If you use WiFi, set the encryption to the most complex. Usually this will be WPA2. Some access points allow downgrading encryption if the connecting device doesn't support it. Encryption is as good as the weakest encryption allowed. So, just set it explicitly to one supported by all devices. You can "obscure PSK" but this will make connecting a new device to the network a little more difficult. The user will have to enter the network name manually rather than select it from the list. Some WiFi devices can check all wirelessly connected computers against a list of accepted MAC addresses. This is an extra hurdle for a naive intruder.
Most modems allow changing their MAC address and in particular cloning the MAC address of one of the connected computers. (This is the MAC address ISP sees when the modem connects to the interrnet.) This is one of the things you'd already know if you needed it. For exmaple, it may be a requirement of the internet provider.
It is possible to forward some or, in fact, all portd from the modem to one of the computers connected to the network. It's not required for typical home or business use and is in fact a security risk. You'd need to do it only if you are duing something special like running a Web-server on your network.
Thanks for the WiFi input, as that will be something I deal with very soon. Since my provider tacks on another $5 or $10 per month, if you want to run it from their equipment, I am just going to buy my own access point and run with that most likely. I don't want to hook up a wireless router to the DSL modem/router, because sometimes in my experiences I have see where hardware does not play nice together and it potentially negatively impacts the overall speed quality of the network.