On Thu, 08 Jul 2010 19:29:42 +0200
Thiago Macieira<[email protected]> wrote:
> On Thursday 8. July 2010 18.37.54 Bernd Stramm wrote:
> > On Thu, 08 Jul 2010 18:21:24 +0200
> >
> > Yves-Alexis Perez<[email protected]> wrote:
> > > On 08/07/2010 18:18, Bernd Stramm wrote:
> > > > Where it does come in is that private users today cannot be
> > > > reached by IPv4 unless they go through servers. This is
> > > > different with IPv6, at least at the moment.
> > >
> > > So what you want is something like link-local messaging at a
> > > global scale?
> >
> > Right, I want normal global IP addresses as originally intended. The
> > NAT stuff was added later because of lack of IPv4 address space.
> >
> > This works today if you have IPv6.
>
> IPv6 will not remove firewalls. People will have unique addresses,
> but reachability is not a guarantee.
>
Right, but it depends on who controls the firewall. Right now that is
lumped together with the address translation, done by the ISP. Most
people don't know that these are separate issues. When they have a
unique address it becomes obvious.
Many kudos for trying to reclaim the Internet spirit! It reminds me of
the application called SpeakFreely, which was discontinued and later
turned into a open source project.
Here is the most important part of John's last words on that (emphasis
mine), on January 15th, 2004:
http://www.fourmilab.ch/speakfree/unix/
(...)
A user behind a NAT box is no longer a peer to other sites on the
Internet. Since the user no longer has an externally visible
Internet Protocol (IP) address (fixed or variable), there is no way
(in the general case--there may be "workarounds" for specific NAT
boxes, but they're basically exploiting bugs which will probably
eventually be fixed) for sites to open connections or address
packets to his machine. *The user is demoted to acting exclusively
as a client*. While the user can contact and freely exchange packets
with sites not behind NAT boxes, he cannot be reached by
connections which originate at other sites. In economic terms, the
NATted *user has become a consumer* of services provided by a
*higher-ranking class of sites, producers or publishers*, not
subject to NAT.
(...)
Again, thanks for the effort.
What are the requirements to currently use Ipv6? Both my OS and my
router are capable.
Luis
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