Sadly, to my current understanding, my alma mater still does this. At the time it was extremely convenient - we had labs full of Solaris and Linux boxes, which

Sadly, to my current understanding, my alma mater still does this. At the time it was extremely convenient - we had labs full of Solaris and Linux boxes, which could be remotely accessed from home without any issue. And I also seem to remember that basically nothing on IT's part had to be done during the Xbox 360 / Xbox Live craze, unlike my peers at other schools. Even then, though, the downsides of consumer network security (mostly) relying on NAT were obvious. Common ports (80, 25, etc) were blocked inbound; the school's printers basically had to be on their own network, or get spammed all day.