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Re: new draft on IPv6 CPE router available for review



On Fri, 4 Jul 2008, Shin Miyakawa wrote:

"Something that is involved in the delivery of a service",
can be an end user host device.
^^^^^^

Or, how about any applications on the CPE router ?

So, my vision of "CPE" is the same as the authors of the draft that started the discussion, a "CPE router". These are for me the same. A host is not a router (difference is that a router does IP forwarding, a host does not).

Please think about following picture.

Access Concentorator <----- PPP or whatever upstream link -----> A CPE that is "Something that is involved in the delivery of a service"

This CPE may be a router or a host. there is no difference between
two of those from ISP point of view.

Yes, and I think these need two different services.

Acutally, there are many service using just a PC to terminate ISP upstream.
So, why you exclude this case from (v6)CPE ?

Because I don't want that model going forward, because I don't think that's going to be what the customer want.

If so, I think that people will purchase "one IPv6 global address service for a host" and USE V6NAT to connect any device in their home network, because probably this service will be less expensive than "Prefix Delegated service for a routed CPE". That's too bad.

Why would this be less expensive? I uses the same amount of ISP resources and could very well be less complicated for the ISP to deploy? There is no technical reason for it to be more expensive.

So, I don't like this idea...
"The customer will have to decide this at the time of purchase of the service."

Well, I don't like the idea of end users connecting IPv6 only hosts directly to the ISP network, I want the customer to be required to have a router, and I don't want the customer to have the possibility to source packets in core IP space, and I don't want ISP routers to have IPs in the customer IP range.

Personally, I want IPv6 native service to require the customer to have a CPE router, if they don't want that, then they can get IPv6 tunneled over 6to4, PPPoE, L2TP or alike, terminated at their computer.

--
Mikael Abrahamsson    email: swmike@swm.pp.se