Point 2 point IPs between ASes

joel jaeggli joelja at bogus.com
Thu Jun 29 01:43:32 CST 2017


On 6/28/17 18:10, Olivier Benghozi wrote:
> Well, /112 is not a stupid option (and is far smarter than /64): it contains the whole last nibble of an IPv6, that is x:x:x:x:x:x:x:1234.
> You always put 1 or 2 at the end, and if needed you are still able to address additional stuff would the point-to-point link become a LAN.
> And you don't throw away billions of addresses like with /64.
If you were subnetting down from /64 for the purposes of preventing ndp
exhaustion or to protect the control plane  on either yours or your
customers platforms then a /112 is pretty useless because 16 bits is
harmful enough.

https://tools.ietf.org/html/rfc6583

https://tools.ietf.org/html/rfc6164
>> On 29 jun 2017 at 02:32, William Herrin <bill at herrin.us> wrote :
>>
>> On Wed, Jun 28, 2017 at 8:01 PM, Aaron Gould <aaron1 at gvtc.com> wrote:
>>
>>> I think this is funny... I have (4) 10 gig internet connections and here's
>>> the maskings for my v6 dual stacking...
>>>
>>> /126 - telia
>>> /64  - att
>>> /112 - cogent
>>> /127 - twc/charter/spectrum
>> 112... Could be worse I suppose. They could have picked 113.
>


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