[AusNOG] IPv6 Addressing

Wed Apr 6 13:55:14 EST 2011

I would suggest:

1) It makes your design simpler: /64 everywhere
2) There are 18,446,744,073,709,551,616 /64s available*

*apart from special/reserved ranges.

-----Original Message-----
From: ausnog-bounces at lists.ausnog.net
[mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Graham Maltby
Sent: Wednesday, 6 April 2011 1:28 PM
To: ausnog at lists.ausnog.net
Subject: Re: [AusNOG] IPv6 Addressing

I am probably showing my complete lack of IPv6 knowledge here but can
someone explain the logic or reasoning behind allocating
18,446,744,073,709,551,616 address to a point to point link?  Or suggest
some reading that might clarify that.

Graham

On 5/04/2011 8:27 AM, John Edwards wrote:
> The "safe" way to do it appears to be to administratively allocate a 
> /64 anyway, even if you configure for a longer prefix.
>
> This way if you need to replace interfaces with some equipment that 
> doesn't support a /127 for some reason, or runs more optimally with a 
> /64, or the management software gui insists on it - you don't have to 
> renumber.
>
> John
>
>
> On 04/04/2011, at 11:16 PM, Mark Grinceri wrote:
>
>> I have received our IPv6 allocation from APNIC. Now the question is 
>> what is everyone doing for there point to point links /64, /126 or 
>> /127
>>
>> From what I can gather most articles are just saying use /64, however

>> I'm heading towards /126 but I'd like to know what the majority of
>> IPv6 networks are assigning (ie Internode). I only want to do this
once.
>
>
>
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