[Tech] Proposal: UP&P

[Matthew Toseland]

On Tue, Mar 06, 2007 at 12:09:10PM +0100, Florent Daignière (NextGen$) wrote:
> * Matthew Toseland <toad at amphibian.dyndns.org> [2007-03-06 01:37:52]:
> 
> > However:
> > - It would significantly improve connection reliability. If for example
> >   all your peers are german and in germany all domestic IPs change every
> >   24 hours, if you are down for 24 hours you are lost for good.
> 
> Do we have any stats regarding how many of our users are double-natted?
> I know that in france most people had DSL connectivity before the
> Wireless craze ; meaning that most users are likely to have two
> different natting appliances (the routing modem and the wireless AP).

You are quite sure that it isn't possible to break out of a double-NAT?
> 
> > - Right now good connectivity relies on getting a few geek nodes - nodes
> >   that are directly connected or port forwarded. UP&P would increase the
> >   proportion of such nodes dramatically.
> 
> I am not sure it's an issue. I am idling on #freenet-refs on a regular
> basis to see how the installer performs and to see where users get
> stuck : most of them don't have connectivity problems.

Not initially. The problem here is that somebody gets a few references,
they're all in Germany so their addresses are recycled every 24 hours.
They take their node offline for a couple of days for whatever reason.
They bring it back online and they have no connectible peers.
> 
> > - It would allow for all sorts of bootstrapping protocols. One-time
> >   references are the tip of the iceberg: Anything that involves giving
> >   your details well in advance of the actual connection attempt will be
> >   greatly helped by UP&P support.
> 
> Will be greatly helped if UP&P works : indeed.

Right.
> 
> > - It would (mostly) eliminate the need to rely on centralised STUN servers.
> 
> it's assuming there is no double nat : again ;)
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