My university has installed Cisco Clearaccess on their network, which means that anyone using the wired network has to login. I came in after the removed the requirement that you must install this huge piece of software that installed Synaptic antivirus (which is huge) and several other things.
My question though is why is this necessary? They do not block websites or have an enforced proxy server, so "Filtering" isn't a reason. Accountability isn't a problem because if all computers didn't have public IP's that made them easily identifiable and had private IP's (eg my states public school network), they can't track who did what unless they logged everything, which with several thousand people using the network simultaneously would be impractical to (mainly I'm asking here how the public school system was able to do that but the university can't). Heck, requiring computers to be updated isn't a problem since they removed the enforced software install and opened up support for Linux and Mac. And all of this is irrelevant because my university has the unique configuration of allowing Xbox's and PS3's to connect and get mostly full internet access, meaning that all a student has to do is change their MAC address to one in the ranges that all XBox's have, meaning every reason that they could come up with is irrelevant. I use this loophole to run a few headless Linux server's where I can't login since they don't have browsers. The only reason I can think of is to forcibly limit non-tech savvy to 2 computers. However the tech savvy have trouble because they dual boot, which Clearaccess defines as 2 computers.
This is leaving me wondering exactly why many universities have strict Cisco Clearaccess software installed. Is it to abide by a legal requirement? Is it because "We were Windows only for years and enforced Clearaccess software installation, but even though now we've lifted the Clearaccess requirement and Windows requirement, we don't feel like removing the software". What's the real reason?