Sharing broadband service wirelessly.
I want to share my broadband Road Runner connection with my sister. However, her Windows 2000 ThinkPad is located two floors above me, I am in the basement. In an effort not to deal with multiple feet of cable, I would like to wirelessly connect her to my Netgear router which is already serving my iMac and Windows XP machine via ethernet cables, none of the computers are networked and I don't want them to be. My plan is to only have her on the wireless connection, no need to be networked to me. So what do I have to do to achieve this? I know I want an airport base station (just because I like how it looks ). However, her computer does not have any wireless ethernet card, or anything. So I would have to buy one of those right or some type of base station point? And, what would the setup be like; Would I plug the airport base into my router, like my other two computers? This is where everything gets shady for me. Could someone explain what would happen next, the setup, and another major concern is how secure is this wireless network going to be? I don't want someone getting a free ride off of my broadband service. Thanks!