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>
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