Most users can safely ignore this notice.
About ten minutes ago we changed the University's IPv6 address allocation scheme to accommodate the growing number of IPv6 enabled subnets on campus. As a result of this, any IPv6-enabled PCs on an IPv6 capable subnet of the University's network will have had their IPv6 address change.
Note that modern version of Linux, Windows Vista, and Apple Macs are IPv6-enabled by default. PCs running these operating systems on staff networks (but not the Student Network) may be using IPv6 without realizing it.
PCs that obtain their IPv6 address by router solicitation will automatically learn about the new IPv6 address scheme. This is currently the preferred mechanism for IPv6-capable PCs to learn their addresses.
PCs that have statically configured IPv6 addresses will need to change the IPv6 address that they use. In particular, the subnet portion of the address will change (the bit after 2001:4200:1010: and before the EUI-64 portion of the address). The corrrect new subnet addresses can be obtained here.