[ipv6-wg] /127 for point to point links

On 02/12/2010 10:10, Vegard Svanberg wrote:
> Hello. We've stumbled across a problem with a router manufacturer, which
> won't implement support for /127 prefix lengths. Now, we do have
> peering/transit partners using /127 on their p2p links. The result is
> that we either cannot peer with them, or will have to get new routers.
>
> RFC 3627 states that /127 is considered harmful, however I do feel this
> RFC confuse people since it doesn't propose a definite solution. It
> suggests a number of solutions and indicates using /64 is the right
> thing. I must say I strongly disagree on that conclusion. Wasting so
> much address space on point to point links just makes no sense to me.
>
> So I'm not sure what to do here. I have to convince someone; either our
> partners or the router manufacturer. I have the impression that /127 is
> used widely out there.
>

Well, personaly as being the first commecial ipv6 provider in our 
country I had the same reservations. But after a talk with our IPv6 
experts (go6.si) I/we just accepted the fact that we're wasting 
perfectly good address space and we just put /64 on P2P links...

Still, if it becomes an obvious overkill I'm quite sure that by that 
time the HW manufacturers will have things sorted out. And that the 
"powers to be" will define the standards.

Ragnar Belial Us