Using /126 for IPv6 router links

Brandon Galbraith brandon.galbraith at gmail.com
Sun Jan 24 02:55:52 UTC 2010


Sometimes good enough > perfect

Never know what is going to come along to turn your addressing plan on its head.

-brandon

On 1/23/10, Larry Sheldon <LarrySheldon at cox.net> wrote:
> On 1/23/2010 8:24 PM, Owen DeLong wrote:
>> On Jan 23, 2010, at 4:52 AM, Mathias Seiler wrote:
>>> In reference to the discussion about /31 for router links, I d'like
>>> to know what is your experience with IPv6 in this regard.
>>>
>>> I use a /126 if possible but have also configured one /64 just for
>>> the link between two routers. This works great but when I think
>>> that I'm wasting 2^64 - 2 addresses here it feels plain wrong.
>>>
>>> So what do you think? Good? Bad? Ugly? /127 ? ;)
>>>
>> Use the /64... It's OK... IPv6 was designed with that in mind.
>>
>> 64 bits is enough networks that if each network was an almond M&M,
>> you would be able to fill all of the great lakes with M&Ms before you
>> ran out of /64s.
>
> Did somebody once say something like that about Class C addresses?
>
>
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-- 
Brandon Galbraith
Mobile: 630.400.6992
FNAL: 630.840.2141




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