10. University and non-University
It can be useful to classify hosts as University or non-University, for the purposes of firewalling etc. A convenient aspect of the current University IPv4 allocation is that it's possible to make an easy division between the class B and C networks. With the single IPv6 allocation we must arbitrarily draw a line somewhere in the /44 pool, but without knowing what potential IP uses might dramatically change the addressing needs of the university in the future.
In the meantime a simple distinction can still be achieved to start with.
The External Site-wide Service networks are of course non-University
addresses, conveniently placed in the highest /46 of our allocation. Therefore
2001:0630:044c::/46 is non-university and the
remaining is (somewhat trusted) IP space.