Please excuse this lurker joining the conversation. I have a very little IPv6 experience so please give what I say the appropriate level of reliability.
From: Tim Chown <tjc@ecs.soton.ac.uk>
On Sun, 12 May 2002, Francis Dupont wrote:
=> one detail which is never called to mind here is an university which gives internet access to its students *outside* the university (i.e. in a context where students can need a /48) should be sued by all commercial ISPs for illegal competition using public money...
I think most NREN AUP's make this sort of activity unlikely; certainly in the UK you can't generally run commercial services over JANET, and you certainly can't resell academic bandwidth to external users.
Whilst this is one way to view the JANET Connection Rolicy and AUP (<http://www.ja.net/documents/connection_policy.pdf>, <http://www.ja.net/documents/use.html>) in practice there seems to be quite a bit more latitude. The getouts are in clauses that talk about things like "benefits to the Higher and Further Education and Research Council community". One possible application is in providing services to alumni rather than current students. I don't know if any precedents have been set on JANET yet but it's an obvious area.
So universities can't be real ISPs by them selves, ... [snip]
I would envisage a university getting one /48 for its campus and another out of which to allocate staff/student dialup/etc - as Pekka says for this kind of activity (the university is not a full-blown ISP) the end user gets a /64.
On JANET at least - I don't know about other NRENs - a University is allowed to offer onward connections (Sponsored connections), acting as a mini-ISP or proxy-PoP. There are benefits for the sponsored site to use address space which is separate from the sponsoring (University) site's, and in IPv4 on JANET this is generally enforced. Should this mean a third /48 for any such third party sites attached the University? Sam Wilson Network Services Division Computing Services, The University of Edinburgh Edinburgh, Scotland, UK