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 <rdobb...@arbor.net> wrote: > > >> On Oct 11, 2014, at 1:33 PM, Faisal Imtiaz <fai...@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 <rdobb...@arbor.net> // <http://www.arbornetworks.com> > > Equo ne credite, Teucri. > > -- Laocoön >