RE: 6to4 vs forwarding IP proto41 in NAT

["Bound, Jim" <jim.bound@hp.com>]

because if the nat vendors have guidance to pass through proto 41 and
ISPs will decap IPv6 can be used as tunnel to the outside word for two
IPv6 nodes to communicate using IPv6 all be it with IPv4.  It gives
reason to nat and isps to do init ipv6.  also permits other options and
that is the work of this draft to flush out.  if we don't flush it out
then I agree.  but this also would permit tunnel brokers which I think
are a good idea for home use.  we will learn and expand from pekkas list
he sent from this exercise and why jordis work is important for us as
engineers working on transition to analyze.

/jim

> -----Original Message-----
> From: HELENA RUTE SOFIA [mailto:rsofia@seas.upenn.edu] 
> Sent: Wednesday, July 16, 2003 3:20 AM
> To: JORDI PALET MARTINEZ
> Cc: v6ops@ops.ietf.org
> Subject: Re: 6to4 vs forwarding IP proto41 in NAT
> 
> 
> 
> One thing that is really puzzling me about this draft is: do 
> we really need this?? There are currently two options that 
> have "more" priority in terms of implementation, i.e., v6 and 
> 6to4...so why try to create a document on something that is 
> currently assumed to work, and that is only used as a "hack", 
> when one of the other two is not working?? Why do we need a 
> document on this?
> 
> Rute
> 
> 
> On Tue, 15 Jul 2003, JORDI PALET MARTINEZ wrote:
> 
> > Agree, it should work.
> >
> > Regards,
> > Jordi
> >
> > ----- Original Message -----
> > From: "Alain Durand" <Alain.Durand@Sun.COM>
> > To: <v6ops@ops.ietf.org>
> > Sent: Tuesday, July 15, 2003 5:01 PM
> > Subject: 6to4 vs forwarding IP proto41 in NAT
> >
> >
> > > A NAT box could do the following when receiving an IPv6 packet 
> > > encapsulated in IPv4 with proto 41:
> > >
> > > If IPv6 dst does not belong to the local 6to4 /48 prefix, forward 
> > > internally, else decapsulate.
> > >
> > > Why will will not work?
> > >
> > > - Alain.
> > >
> >
> > *****************************
> > Madrid 2003 Global IPv6 Summit
> > Presentations and videos on-line at:
> > http://www.ipv6-es.com
> >
> >
> >
> 
> 
>