How do I lock out my system when I have a wireless router?

Question

it is a secondary computer the primary is conected to a dsl line.

Answer 1

I have no idea what your question is.

Answer 2

I'm assuming that you want to protect your computer (Windows XP) that is connected to the internet wirelessly and you have a wireless router.

If this is the case the easiest (free) method if you have Windows XP or 2000 is to turn on Windows Firewall. This prevents your computer to be easily seen from the outside world without your permission.

Answer 3

change the SSID name and set WEP password to that,