[Bp_ipv6] Request for clarification NAT v NAT

Susan Chalmers susan at chalmers.associates
Sun Nov 29 10:55:44 EST 2015

Dear all,

Thank you *kindly* for this education. What a lovely and informative
thread. I will make changes based upon it and Marco's suggested text.


Susan Chalmers
susan at chalmers.associates


On Fri, Nov 27, 2015 at 6:06 AM, Alejandro Acosta <
alejandroacostaalamo at gmail.com> wrote:

> El 11/27/2015 a las 5:40 AM, Marco Hogewoning escribió:
> >> "
> >> NAT44 is not a transition technology, in the
> >> sense that deploying a CGN for translating IPv4 to IPv4 addresses will
> >> not get you one inch closer to deploying IPv6.
> >>
> >> However, NAT64 (a box that translates ipv6 packets into ipv4 packets) IS
> >> a transition technology."
> >>
> >>    But I think that if you have any concern with the current text we
> should try to add probably one more paragraph trying to make it clear. What
> does the rest of the group think?
> > Sounds about right…
> >
> > How about:
> >
> > Network Address Translation is an umbrella name for a variety of
> technologies. Where originally used to share a single public IPv4 address
> amongst multiple devices in network, which is common method in domestic
> Internet access as well as pubic access wifi networks. It also found use in
> enterprise networks to create more closed networks and reduce the
> administrative overhead involved when changing carriage providers, a step
> which require IP renumbering.
> >
> > Lately these same technology is applied in a stacked fashion, commonly
> known as Large Scale or Carrier Grade NAT (CGN), where multiple levels of
> address sharing reduce the amount of IP addresses needed to operate access
> provider networks. While in short term such technologies can mitigate the
> effect if IPv4 address scarcity, the long term effects can have severe
> impact on network performance, traceability for law enforcement and the
> operating and expansion costs of networks. The widespread use of NAT will
> also harm the openness of the Internet, limiting future innovations that
> would rely on transparent any to any connectivity between machines at the
> IP level.
> >
> > A different type of NAT, called NAT64, is used to translate between IPv4
> and IPv6 networks, connecting the two incompatible protocols. This in
> particular allows users of IPv6 to connect to services that are still only
> available using the IPv4 protocol. While this translation again could
> introduce negative effects on traceability of overall network performance,
> it is widely regarded as an acceptable technology to aid in the deployment
> of IPv6. Especially in those cases where a single stack network setup, only
> using IPv6, is preferable over maintaining support for both IPv4 and IPv6
> in an access network. Various 4G/LTE mobile access providers have chosen to
> deploy this technology as part of their IPv6 deployment.
> >
> > Regards,
> >
> > Marco
> >
> Awesome :-)
> Sounds easy to understand & not very deep (technical speaking)
> Hope it can fit easily in the document.
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