At home I have about four laptops and one desktop computers. All of them use a wireless connection to connect to the internet. Sometimes, one of my siblings is downloading something huge or is downloading torrents or what not and it cripples the speed for the rest of us. I also can't see if someone has managed to crack my WEP password and is using my connection (a neighbor or someone). Is there freeware that tells me who is connected to my network and how much traffic or data they are using?