[6bone] v6 and ADSL

[Christian Schild]

Hi Fred,

Am Mit, 2003-07-23 um 19.16 schrieb Fred Templin:
> I've been trying to get the word out on this, but perhaps it needs to be
> mentioned again. ISATAP can be used to connect a whole net; not just
> a single client as claimed below. For example, a residential gateway
> can configure an ISATAP client interface on it's link to the ISP and an
> ISATAP routing interface (and/or a native IPv6 routing interface) on
> it's link to the home network. The home network can have arbitrarily
> many clients; not just a single client.

I am not sure, if I understood your scenario correctly, because the way
you described it here, it may not be possible to configure a residential
site.

If the residential gateway is configured as a ISATAP client, with a
connection to an ISATAP server in the ISPs environment, the residential 
gateway will only receive a single /128 IP. In the absence of a global
aggregatable /64 prefix it can not act as an ISATAP server for internal
connectivity.

> The only other requirement in this case is that the residential gateway
> procure a prefix delegation for advertisement on the home network.

Thats the point, so it's kind of conflictive to what you said above.

> The delegation could come from the ISP (e.g., through DHCPv6
> prefix delegation) 

Right. You need such a delegation. 

> or through some fictitious provider-independent addressing scheme.

This will not work resp. be pretty useless, as this fictitious 
prefix will not be routed outside your residential site, and 
the internal hosts couldn't reach anything external.

So long,
    Christian
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JOIN - IP Version 6 in the WiN  Christian Schild
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