6to4 status (again)

[Brzozowski, John Jason]

Tim want to try and catch up this week at IETF?


On Fri, Mar 1, 2013 at 7:56 PM, Brzozowski, John Jason <jjmb at jjmb.com>wrote:

> Tim I am sure we will chat during IETF, like I said earlier more to come
> on this front.
>
>
> On Fri, Mar 1, 2013 at 10:02 AM, Tim Chown <tjc at ecs.soton.ac.uk> wrote:
>
>> On 1 Mar 2013, at 14:46, "Brzozowski, John Jason" <jjmb at jjmb.com> wrote:
>>
>> Oh btw not everyone will turn their relays off. Someone will try to be a
>> hero. :)
>>
>> In the early days the hero was SWITCH. But I refer you to Batman on the
>> topic of heroes :)
>>
>> Anyway, it would be great to get a list of, as Brian puts it, 'legacy'
>> equipment that is doing this, or of specific applications that may be doing
>> so (e.g. maybe P2P on certain platforms). Any intel from John or elsewhere
>> would be really interesting.
>>
>> I know a significant number of Apple Airport Extremes were 'guilty' a few
>> years ago, but updates were made available for that. Whether those were
>> applied automatically or otherwise is another question.
>>
>> Tim
>>
>> On Mar 1, 2013 8:20 AM, "Tim Chown" <tjc at ecs.soton.ac.uk> wrote:
>>
>>> On Fri, Mar 1, 2013 at 8:00 AM, Ole Troan <ot at cisco.com> wrote:
>>>
>>>> John,
>>>>
>>>> > Ole we actually have experience that tells us it would be bad if we
>>>> turned our relays.  Some streaming service experience is already not
>>>> optimal over 6to4 using our relays largely related to the protocol not the
>>>> relays themselves.  Turning ours down would result in the use of a single
>>>> 6to4 relay on someone else's network.  Further this relay is hosted by a
>>>> university.  For now we think it makes more sense to keep our running and
>>>> encourage client side disablement until there is ~0 bits over 6to4.
>>>>
>>>> yep, I understand the choice and what bind you're in.
>>>> my hope was that everyone, including the university would stop their
>>>> 6to4 public relays.
>>>>
>>>
>>> Well that university should quickly spot the 'DoS' that would suddenly
>>> hit it, and also turn the relay service off.
>>>
>>> The whole turn-off could ripple through the net in a couple of weeks,
>>> with luck :)
>>>
>>> The question really is how many systems are using 6to4 by choice? If
>>> it's an issue with address selection where native IPv4 and 6to4 exist, then
>>> that should be fixed, else the relays will always be needed.
>>>
>>> The geeks who want IPv6 can surely use tunnel brokers.
>>>
>>> Tim
>>>
>>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.cluenet.de/pipermail/ipv6-ops/attachments/20130313/80e47802/attachment.html