Re: 3gpp-analysis document and automatic tunneling

[Pekka Savola <pekkas@netcore.fi>]

On Thu, 29 May 2003, Fred Templin wrote:
> Pekka Savola wrote:
> 
> >Careful here: you're proposing to extend ISATAP to be used across multiple 
> >administrative boundaries -- which is *specifically* has not meant to be 
> >(AFAIR)!
> >
> Nothing of the sort. The isatap client is within the administrative
> domain of the isatap router. The isatap router serves a /64 dhcpv6
> prefix delegation to the client. The client uses this prefix to connect
> as many additional hosts as it wishes using, e.g., the multi-link subnet
> model and RA proxies. It's just like what happens when the GGSN serves a
> /64 to a mobile via the IPv6 PDP context; it has nothing at all to do
> with multiple administrative boundaries. Again, the main point is that
> the isatap client can connect many hosts - not just one.

Could you describe the scenario in more detail?

It seems to me that the approach in above is that ISATAP link-local
addresses would be used between the router and the client.  The client is
in different admin domain as the router (tradeoffs of this might be
manageable), as is in a different admin domain as all the other clients
(which would also appear to be on the same link).

But perhaps I'm missing something here.

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