[6bone] v6 and ADSL

[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.

The only other requirement in this case is that the residential gateway
procure a prefix delegation for advertisement on the home network.
The delegation could come from the ISP (e.g., through DHCPv6
prefix delegation) or through some fictitious provider-independent
addressing scheme.

Fred Templin
ftemplin@iprg.nokia.com

Christian Strauf (JOIN) wrote:

>Hi Nir,
>
>Am Mit, 2003-07-23 um 11.06 schrieb Nir Arad:
>  
>
>>If I understand ISATAP correctly, you need a globally unique /64 prefix.
>>I assume Dan does not have one, and would want to rely on his (globally unique, dynamically assigned) IPv4 address.
>>This IPv4 address can be used to form a 6to4 address, and connect to a 6to4 relay.
>>    
>>
>You need this /64 prefix for the server (not for the client) which then
>assigns IP-addresses to ISATAP clients within this prefix. So in a way,
>if Dan has access to an ISATAP-server, this would solve his problem.
>It's probably not as easy a solution as 6to4 but I wanted to point out
>this option. But it's incorrect that Dan himself needs his own /64
>prefix. A provider or other entity that runs the ISATAP-server needs a
>prefix.
>
>  
>
>>Now, assuming again, that Dan does not have a home network with private addresses behind his ADSL modem (but only one
>>host), and since he needs 6to4 anyway, what would be the reasoning in using ISATAP in such configuration?
>>    
>>
>See above: the primary function of ISATAP is to connect one client, not
>a whole net. Basically: ISATAP integrates single clients into a site
>that has a certain prefix and advertises this prefix to connected
>clients.
>
>Cheers,
>Christian
>
>  
>