Re: [v6ops] I-D Action: draft-ietf-v6ops-6to4-to-historic-07.txt

[Brian E Carpenter <[e-mail]>]

On 14/11/2014 09:24, Doug Barton wrote:
> On 11/13/14 12:12 PM, Gert Doering wrote:
>> Hi,
>>
>> On Thu, Nov 13, 2014 at 12:03:19PM -0800, Doug Barton wrote:
>>>> (Client has working global IPv4, Router has working global IPv4,
>>>> neither
>>>> has v6, but peer-to-peer 6to4 enables access to inside LAN with 2002:
>>>> addresses derived from Router's v4 address)
>>>
>>> Isn't that the use case that ULAs are meant to cover? Or am I missing
>>> something here?
>>
>> So how exactly do ULAs help connect to your home network from abroad,
>> when all you have is IPv4 at the client?
>>
>> "client" is obviously *outside* "home network"
> 
> Ok, then I misunderstood your point, thanks for clarifying.
> 
>>> I made the point earlier that (for example) OpenWRT already has support
>>> for PD, it also creates a ULA network on the LAN side, whether you have
>>> a public prefix (or tunnel) or not. So all of that is doable today, with
>>> running code.
>>
>> That wasn't the question.  Ole was asking "what are use cases for
>> peer-to-peer 6to4" (RFC 3056 without 3068).
> 
> Yeah, I have the same question. :)  If users are stuck on an IPv4-only
> ISP, and want IPv6, they have proven alternatives already. IMO it's
> going to be very hard to send a clear message to implementers and
> operators, "Deprecate *this* kind of 6to4, but *not* this other kind."

Well, yes, it is hard to be clear, because of all the complexities.
Some of them were discussed at length in RFC 3056 and others in
RFC 6343. However, I maintain that the *current* draft is not
particularly complex in what it recommends.

I don't understand what you meant by "create this new hybrid thing".
IMHO the draft *removes* the hybrid thing created by RFC 3068,
apart from a few operational dregs, and leaves the thing created
by RFC 3056 untouched.

To your other earlier comment, a WGLC is not generally an up/down
choice. The authors will do what the WG wants, and a WGLC is a way
to find out what that is.

   Brian