Where are these dorms that are only IPv4 ready anyway? My university was on the ball with IPv6 years ago... If anyone can mitigrate easily, it is schools.
Are you sure it is not a misconfigured windows on your network? It happened all the time at my university (one windows with 6to4 starts broadcasting router advertisements).
Mine is. We have IPv6 enabled (so it works within the intranet), but it isn't actually routed to the external internet. Last I checked the network admins were waiting for an IPv6-capable firewall to be installed before enabling the routes.
