[ipv6-wg] IPv6 on P2P links

On Thu, May 26, 2011 at 10:36:27AM +0200, Marco Hogewoning wrote:
> > on our side we use /126 for P2P links. I've heard some others using /64 or /127.
> > Some allocate a /64 but configure a /126 to always have :1 and :2 in order to avoid mistakes by calculating the good hosts ip addresses.
> 
> Curious, why did you pick /126 ? What do you do with ::0 and ::3 ?
> 
> Marco 

I understand that you asked (and in fact we use /31 for IPv4 P2P links).
The fact is that when I decided the addressing plan, I was looking for implementation stories from others and based on what I've read, we decided to go on /126. No real reasons. We're always open to look deeper and make changes if necessary.

We had to make a decision at this time and we went to /126 over /127 mainly because of RFC3627.
Our main goal was to deploy IPv6 and tried to quickly find a good way to subnet our block.

Regards,  

-- 
Pierre-Yves Maunier
AS8218 IP/Project Engineer
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