Re: IPv6 Default Allocation - What size allocation for Loopback Address

[Tim Raphael <raphael.timothy () gmail com>]

From my research, various authorities have recommended that a single /64 be allocated to router loopbacks with /128s 
assigned on interfaces. This makes a lot of sense to me as (which has been said) there is no other *need* in the 
foreseeable future to have more than one IP on the loopback - this is the purpose of it. Any technology or design that 
requires this has got scaling issues and should not be used anyway.

Regards,

Tim Raphael

> On 11 Oct 2014, at 2:37 pm, Roland Dobbins <rdobbins () arbor net> wrote:
>
>
> > On Oct 11, 2014, at 1:33 PM, Faisal Imtiaz <faisal () snappytelecom net> wrote:
> >
> > I am trying to understand what is sub-optimal about doing so...Waste of Ipv6 space ? or some other technical reason ?
>
> It's wasteful of address space, but more importantly, it turns your router into a sinkole.
>
> > (is a /64 address are a 'sinkhole' the only reason ? )
>
> That's a pretty big reason not to use /64s.
>
> ----------------------------------------------------------------------
> Roland Dobbins <rdobbins () arbor net> // <http://www.arbornetworks.com>
>
>                   Equo ne credite, Teucri.
>
>                     -- Laocoön