You can connect your Xbox by wireless or wired (ethernet).
You should have a modem plugged to the xbox Internet slot. Have all your Ethernet cables and DSL plugged and have the Internet plugged in and switched on
You first need to sign up for an Internet Service Provider (ISP). They will hook you up with service and give you a cable or dsl modem. From there, install the cable or dsl modem, install the software they gave you on your computer, plug in the cable or dsl modem. you know should have HIGH SPEED!
It is not recommended but you can share your internet through your computer and the xbox can use it as a gateway to the modem.
You do not need a dial-up modem. However, you will need to either purchase or rent a DSL modem, which works differently from a dial-up modem, and is usually outside the computer.
A modem, which you normally get from the DSL provider, is really the only thing you need (apart from a computer).But it is recommended to get a home router/firewall as well, it gives basic protection against computer attacks from the internet and lets you hook up a second computer to the same DSL connection.See related Wikipedia link.
The short answer is that you don't. Sure, you can plug a fax modem into a phone line that supports DSL, but it is just using the dial-up capabilities of the line and not the DSL capabilities. A regular modem like that functions like a telephone and transmits in the audible frequency range and not the higher DSL frequencies. With DSL, you'd use a DSL modem (with or without an included router), not a dial-up modem.
The DSL modem that qwest provides to each customer is going to be the best modem because it is up to date in software.
Usually a cable modem is about 30 mbps and DSL can up to 768 kbps.
you plug the ethernet cable in the back of the xbox and then you hook it up to the computer modem.
You need a modem and a router to set up DSL internet. You do not need any particular brand of equipment, but you will also need cords and plugs to ensure that you can get power for your new equipment.
Well I connected my to a modem, first plug your internet cable into the wall then into the modem, then get an ethernet cable (Comes with pro and elite console packages) and plug it into the modem and the back of the xbox.
I have a wireless thing hooked up to the back of my xbox360 that you can buy for about $100. This is the easiest way but you have to have your modem hooked up to a router which lets you have wireless acess to the internet.