Re: 3gpp-analysis document and automatic tunneling

[Pekka Savola <pekkas@netcore.fi>]

On Tue, 27 May 2003, Fred L. Templin wrote:
> Pekka Savola wrote:
> > On Tue, 27 May 2003, Karim El-Malki (EAB) wrote:
> >>I have used ISATAP in 2.5 & 3G mobile networks and think it
> >>is a very relevant mechanism. What is your experience of
> >>these mechanisms in mobile networks that makes you say this?
> > 
> > 
> > ISATAP doesn't allow you you to connect more than a single host.  It
> > doesn't allow routers or networks (e.g. a /64 as recommended to the 3GPP).  
> > Thus, I see it being of little use at least in the 3GPP-specific part.
> 
> I don't know exactly the scenarios Karim is referring to, and I don't
> quite understand Pekka's comment. But, I do see a use case for ISATAP
> in the text of section 3.1 of "Analysis on IPv6 Transition in 3GPP
> Networks".
> 
> Whether/not the case described in this section will be common is a point
> which can't be proven until significant 3G deployment has occurred, but
> ISATAP does seem to provide a good fit.

I haven't read the analysis in detail, but the latest Scenarios draft at
least *seems* to very explicitly mention that GGSN supports both IPv4 and
IPv6.

So what appears to be in the analysis document appears to branch into a 
very questionable direction.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings