Microsoft's participation in World IPv6 day
Owen DeLong
owen at delong.com
Wed Jun 8 13:05:23 UTC 2011
On Jun 8, 2011, at 5:48 AM, Cameron Byrne wrote:
> On Wed, Jun 8, 2011 at 5:47 AM, Cameron Byrne <cb.list6 at gmail.com> wrote:
>> On Wed, Jun 8, 2011 at 12:09 AM, Owen DeLong <owen at delong.com> wrote:
>>>
>>> On Jun 7, 2011, at 9:59 PM, Martin Millnert wrote:
>>>
>>>> Owen,
>>>>
>>>> On Tue, Jun 7, 2011 at 11:47 PM, Owen DeLong <owen at delong.com> wrote:
>>>>> LSN is required when access providers come across the following two
>>>>> combined constraints:
>>>>>
>>>>> 1. No more IPv4 addresses to give to customers.
>>>>> 2. No ability to deploy those customers on IPv6.
>>>>
>>>> 2 has little bearing on need of LSN to access v4. Insufficient amount
>>>> of IPv4 addresses => LSN required.
>>>>
>>>> Regards,
>>>> Martin
>>>
>>> No, if you have the option of deploying the customers on IPv6, you don't
>>> need LSN.
>>>
>>> The problem is that until the vast majority of content is dual-stack, you can't
>>> deploy customers on IPv6 without IPv4.
>>>
>>>
>>
>> cough cough NAT64/DNS64 ...
>>
>
> cough DS-lite.
DS-lite is a slightly less pathological form of LSN. It's still LSN, it just removes
the second NAT at the CPE.
Owen
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