Ok a little naughty this one. My household is running two computers (one desktop and one laptop) The laptop is connected wirelessly to my modem/router and my desktop connected to the modem/router by ethernet cable. My other half is in another room using the laptop. I know she is upto something on the laptop but I cant access it because it has a bios password and a logon password. Can I see what she is sending through and receiving through the internet with the setup I have? As all traffic is obviously going through the modem/router, im wondering if I can intercept it somehow..
It won't, it's a packet analyser. What you're wanting to do is quite complicated, and wireshark is perhaps the simplest of those available. There's plenty of help in their wiki and forums online though.