Originally Posted by
chrestomanci
The way skype routes it's packet causes problems. It uses firewall piecing methods to sneak where it is not supposed to be, and if you run skype on an firewalled box, it will route packets from other people through you. A friend of mine is sysadmin at an Oxford college. Every PC in the place has a worldwide routable static IP address with a 10Gb connection to the internet. Given the chance Skype would attempt to route half the UK's phone calls through one of those PCs, and suck up all the available bandwith, Because of this skype is banned, from student PCs, even though it would be a great help for the foreign students.