Need help dsl cable

A lot of CenturyLink's modems also have built-in wireless routers. If you got it directly from CenturyLink, the paperwork should have instructions for setting up the wireless access if it has that feature. You can also look at the label on the modem; the default SSID and access password for it will be printed directly on that label if it has wireless access. If you don't have wireless access, you'll either need to get a wireless router or an Ethernet cable that's long enough to connect your modem to your computer. I'd go for the router for convenience; they start at about $50 for a basic model. Depending on how long of an Ethernet cable you need, you'll probably end up spending about $30-$50 on it. Another option is to take a look at the other rooms in the apartment. Most of the ones I've lived in have had multiple phone jacks throughout them, so if you have another one available you can try plugging it into that jack and see if it's connected to your active DSL/phone line. Since your modem's already set up, you'll just have to plug it in at the other jack. It'll connect automatically as long as the line is active there.

On a router you will need to see if the cable they use is a pass through cable or a crossed cable. There is two different type of cables to get your connection across. Normally a router uses a crossed cable to get the signal to your computer. If you happened to buy a pass through cable this one won't work. Pass through cable will work if you hook up one computer to another so you can transfer data through the RJ45 cable. I would check to see what you have bought. Or do as Yuki suggest and get a wireless card and use the wireless signal to get to your computer.

I think you can go for wifi and contact your service provider for wifi connection and then after that you don't need that any more cables in your house for internet.