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RE: ocean: do not boil
agreed.
/jim
> -----Original Message-----
> From: Tony Hain [mailto:alh-ietf@tndh.net]
> Sent: Monday, September 30, 2002 12:03 PM
> To: Bound, Jim; Rod.VanMeter@nokia.com; mrw@windriver.com;
> hesham.soliman@era.ericsson.se
> Cc: itojun@iijlab.net; v6ops@ops.ietf.org
> Subject: RE: ocean: do not boil
>
>
> Jim Bound wrote:
> > ...
> > If the provider service is dominant IPv6 usage then the only
> > reason to use Ipv4 are for services that have not been
> > migrated to IPv6. This is where DSTM brings its value.
> >
> > It permits a network operator to:
> >
> > 1: conserve and manage its precious IPv4 global address space
> > 2: control the use of IPv4 global address space per usage/service
> > 3: identify a migration of services and apps that must move to IPv6
> > 4: avoid the use of any NAT paradigm at the GGSN
> > 5. Use e2e security (e.g. IPsec) inherent on the handheld.
> > 6. Use IPv6 as the dominant routing protocol.
> >
> > The above cannot be done with NAT-PT. In addition
> > DSTM as a solution can be used only when needed and
> > does not require the routing complexity (except coming back
> > into the GGSN) that 6to4 does. But a variation of DSTM is
> > also proposed that will use 6to4 if it is part of the DSTM.
> >
> > DSTM not only is useful for 3G but 802.11 LANs, LMMs,
> > and WANs which I see being deployed much faster and
> > in fact currently and I see NO 3G deployment at this time.
> > So I am testing this with 802.11 as a note and with handheld
> > devices.
> >
>
> Rod was correct, in the sense that for a basic 3G network a
> demand IPv4
> PDP context provides the same functionality that DSTM provides to a
> routed IPv6 network. The point I think you are trying to make is that
> DSTM also works in wireless hot-spot networks, and for an
> operator that
> is interested in a unified mechanism for handsets that roam
> between the
> 802.11 & 3G radios, DSTM may be the best approach. If they really are
> locked into the point-to-point association between the GGSN & the
> handset, they could use L2TP as a companion mechanism when the radio
> drops the IPv4 PDP context.
>
> Tony
>
>
>
>