/127 between routers?

[Mikael Abrahamsson]

On Tue, 5 Jan 2010, Xavier Beaudouin wrote:

> Hi there...
>
> I can't figure if there is any drawback to use a /64 and subnet it into
> /127 only for point to point connections between routers.
>
> Seems that OpenBSD doesn't forbid that, but I wanted to know if there is
> any drawback in this way of connection each routers in such way.
>
> When I was working on 2000 and have 6bone stuff and was pTLA, we cannot do
> that, now KAME stack on OpenBSD allow that.
>
> Any good practices in this domain ?

People seem to mostly use /126, /112 or /64 for their p-t-p links.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se