Thanks again for the comments Jon.  All noted and I agree with Mark's response.

Tim

On 6 Mar 2013, at 04:34, Mark Townsley <[email protected]> wrote:

> 
> Replying, changing the very misleading subject. 
> 
> Thanks for the comments, please see inline.
> 
> On Mar 1, 2013, at 2:45 AM, Brzozowski, John wrote:
> 
>> Tim,
>> 
>> 
>> Per your request below here are some comments pertaining to the section
>> you mention below.
>> 
>> * The section seems to hint at two extremes stable on one end and very
>> dynamic i.e. at each CER reboot.  I think it is important to note that
>> there is middle ground here and that providers typically have good reason
>> for requiring prefix changes, largely related to network capacity
>> management.  It is not clear to me if this need to be called out in the
>> text, however, I thought you should know.
>> * Agreed regarding /64 subnet lengths
>> * This section does not differentiate between a residential service and a
>> commercial or SOHO service.  Is this outlined elsewhere in the draft?
>> Does it need to be?
> 
> That's more of a charter question. While we should aim to create technology 
> that is generally useful outside the home, the defined scope is the home. 
> Among other things, this should help underscore the auto-configuration 
> requirement as the further you dip into SOHO territory, the more likelihood 
> that there is an administrator of some sort (whether it be a remote worker's 
> IT department or otherwise) becomes more and more prevalent. 
> 
> While the "SO" absolutely must be able to work with our "HO" (what looks to 
> us like a special type of additional ISP, if you will), we stop short of, 
> say, trying to define the VPN router's security policy or whether it should 
> use IPsec Tunnel mode or GRE with Transport Mode or SSL or... 
> 
> (Personally, I would like to see homenet's technology have impact outside the 
> home - we're tackling some important problems IPv6 has had for a while.) 
> 
>> * Note - some devices today can only utilize a /64 and nothing more these
>> would not break.
> 
> Good point, and this brings up a general issue of working with existing 
> non-homenet routers that support IPv6. The document should probably highlight 
> this. 
> 
>> * No NPTv6 please
> 
> Section 2.4
> 
> "As such, neither IPv6 NAT or NPTv6 is recommended for use in the homenet 
> architecture."
> 
>> * ULAs support could be introduced at a later date
> 
> Why wait?
> 
>> * Agreed regarding bridging avoidance
>> * How is "relatively stable prefix" defined?
> 
> Relative to changing the prefix whenever the CER is reset:
> 
> "Some ISPs may offer relatively stable prefixes, while others may change the 
> prefix whenever the CER is reset."
> 
> Feel free to offer up a better description. I think the salient point ends up 
> being that the home network is going to have to be resilient to prefix 
> change. 
> 
> 
>> * Good text regarding PIA
>> * Regarding renumbering also note that operators take precautions to
>> ensure this is seamless as well including lease time lowering in advance
>> of the renumbering event.  We have been doing this for years.
> 
> Consistent with RFC 4912 or not? (because that is what we are pointing to 
> right now)
> 
>> * Forced renumbering for privacy sounds unfortunate but based on various
>> emails I have seen lately this seems to be something that must be
>> supported.
> 
> Yes, sadly. 
> 
>> * Agreed that service discovery is essential
>> 
>> I hope these comments are useful, I recognize I was not overly verbose.  I
>> hope this is a feature not a bug.  Please let know if you wish to discuss
>> further.
> 
> Thank you for the review and input, John.
> 
> - Mark
> 
>> 
>> John
>> -----Original Message-----
>> From: Tim Chown <[email protected]>
>> Date: Wednesday, February 27, 2013 5:56 AM
>> To: "[email protected]" <[email protected]>
>> Subject: Re: [v6ops] new draft: draft-shishio-v6ops-dpvt
>> 
>>> 
>>> On 26 Feb 2013, at 14:07, "Brzozowski, John"
>>> <[email protected]> wrote:
>>> 
>>> 
>>> [jjmb] incorrect I have both, just stating that I have both.  Apologies if
>>> I was not clear.  I also have a good # of home routers actively using IPv6
>>> enabled broadband today, ~3%.
>>> 
>>> 
>>> 
>>> 
>>> Congratulations, btw. That must be a large number when converted to real
>>> customers :)
>>> 
>>> 
>>> The homenet architecture assumes a CPE rather than a single host. It
>>> discusses ISP allocations in section 3.4.1 of
>>> http://tools.ietf.org/html/draft-ietf-homenet-arch-07.  As that text
>>> is in WGLC, any comments on that section would be welcome (preferably on
>>> the homenet list).
>>> 
>>> 
>>> Tim
>> 
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