Re: old GSE idea

[Brian E Carpenter <brian@hursley.ibm.com>]

Actually the requirement isn't that the bottom 80 bits be globally
unique, but that they be mutually unique among the set of hosts
involved (which may of course be more than two, due to referrals).
I don't know if that constraint is easier to meet.

Some would say that the answer to your question is HIP.

I do agree we should agree on a systematic breakdown and comparison
of approaches.

   Brian

Iljitsch van Beijnum wrote:
> 
> On woensdag, apr 16, 2003, at 15:40 Europe/Amsterdam, Brian E Carpenter
> wrote:
> 
> > I think we should fly up one level and discuss a hypothetical
> > world in which addresses in A000::/3 are deemed to be mutable
> > in flight between bits 3 and 47 inclusive. See what it does
> > to TCP, SCTP and IPSEC for example.
> 
> Well, break them... The TCP/UDP checksum should be easy enough to fix,
> IPsec AH not much harder. The real problem is that if I have a session
> with a001::1 and suddenly packets start coming in from a002::1, how do
> I know these belong to the same session? This can be fixed by making
> the bottom 64/80 bits should be globally unique, or by informing the
> other side of all possible values that may appear in those 45 bits
> beforehand.
> 
> As long as we're flying up levels, why not go up one more and compare
> different multiple-PA approaches?