The statement in the tech base article is somewhat simplistic, and
perhaps inaccurate, but suffices for its primary audience, which is
the general user (students, in particular). Until we enable IPv6
on the campus network, the computer systems using IPv6 seek to do
their own networking among themselves. The one primary issue that
we identified, and prompted us to recommend disabling IPv6, comes
from a feature of at least the Windows implementation, where one
of the computer systems on the local network will become a DNS
relay between IPv6 and IPv4. If the computer which elects itself
for this function happens not to be registered at the time, then
it starts handing out DNS answers which direct all traffic to the
DHCP registration pages, even for computers which are already
registered.
So we do want to make progress on at least enabling IPv6 where we
can, so that our central network systems will take over the
responsibility for directing IPv6 traffic where it needs to go,
and providing appropriate DNS and DHCP responses for those systems.
I hope to begin work soon on identifying a more complete list of
issues, discussion points, etc., for deploying IPv6 at MSU. Once
we take an initial crack at this internally, we will be looking
for interested parties across campus to join the discussion, and
help us shape a statement of direction, action plan, and so on.
Doug
On Thu, Jan 27, 2011 at 10:24:24AM -0500, David McFarlane wrote:
> At 1/27/2011 10:15 AM Thursday, John Gorentz wrote:
> >At 10:00 AM 1/27/2011, David McFarlane wrote:
> >>I have been hearing scary stories about IPv4 addresses running out
> >>later this year. Which gets me wondering, is MSU doing anything to
> >>prepare for this, or need we do anything? Thanks.
> >>
> >>-- dkm
> >
> >This is more for your amusement than your enlightenment, but maybe
> >ten years ago there was an article in one of the well-known trade
> >magazines that listed Michigan State University as one of a handful
> >of institutions that were hogging a lot more IP addresses than they
> >needed. Doug Nelson may have turned some of the excess over to
> >MERIT. (I'm not sure where I got that idea, though. It might have
> >come from the voices in my head.)
> >
> >Doesn't make the issue go away, of course.
> >
> >John Gorentz
>
> Thanks. Hmm, decided to do a bit of my own homework, went to
> www.msu.edu and searched for "ipv6", which came up with a link to
> "IPv6 and the MSU Network - TB10982"
> (http://techbase.msu.edu/article.asp?id=10982&service= ), which says,
> "IPv6 is INCOMPATIBLE with our network at this time and therefore
> MUST be disabled on user computers". Don't know how old that article
> is though, or if it still applies, or what it means for the future.
>
> -- dkm
--
Doug Nelson, Network Architect | [log in to unmask]
Academic Technology Services | Ph: (517) 353-2980
Michigan State University | http://www.msu.edu/~nelson/
|
