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Death of IPv6 Site-Local (was Re: Private port numbers?)

  • From: Crist Clark
  • Date: Thu Aug 14 20:33:14 2003

Mans Nilsson wrote:
> Subject: Re: Private port numbers? Date: Thu, Aug 14, 2003 at 11:41:25AM -0700 Quoting Crist Clark (
> >
> > Lars Higham wrote:
> > >
> > > It's a good idea, granted, but isn't this covered by IPv6 administrative
> > > scoping?
> >
> > That's the network layer, not the transport layer. IPv6 scoping has the
> > potential to be very helpful for private addressing since it's fundamentally
> > built into the protocol, as opposed to RFC1918 addresses which are just
> > kinda an afterthought. This means that, by default, vendor products should
> > DTRT with respect to scoped addresses, and administrators have more
> > effective tools.
> Unless I am out hiking completely, you are talking about site-locals.
> Please don't: They are no more -- the ipv6 session at the SF IETF
> reached in-room consensus about removing them, a decision that was
> later confirmed on the mailing list.  There are people who did not
> like this, and they rather loudly try to get the decision reversed,
> but they are the minority.
> Site-locals are, thank $DEITY, a thing of the past.
> (OTOH, Link-locals still remain in the protocol.)

Without trying to find the mailing lists for the IPv6 working groups,
this must have been pretty recent. I just check up on RFCs every once
in a while and RFC 3513, dated April 2003, still talks about Site-Local.

RFC 3587, from this month, talks about losing Top Level Aggregators
and Next Level Aggregators, but that's something different.

I don't doubt you though, even though it's being deployed, IPv6 is far
from completely specified. The details still move around faster than
I'll be followoing. Heck, no one really has found a good way to use the
DIFSERV fields of IPv4 yet.
Crist J. Clark                     
Globalstar Communications                                (408) 933-4387

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