> On Jun 19, 2017, at 10:00 PM, Kevin Blumberg <[email protected]> wrote: > > David, > > My understanding of best practices was /56 for residential and /48 for > business.
Your understanding is not correct. Best practice is /48 for everyone. Common practice differs from best practice as usual. > > My hesitation with requiring all static /48's to be SWIP'ed is that it will > push companies to /56. > > The paradigm with IPv6 is very different, which complicates the discussion. A > single business user with 1 computer could get a /48 or a company with 5000 > computers. > > Another way around the issue is to require SWIP when a /48 or larger block is > routed. If the block is not part of the routing table I don't see how a > simple assignment is going to help anyone. I like this idea, actually. Owen > > Thanks, > > Kevin Blumberg > > -----Original Message----- > From: ARIN-PPML [mailto:[email protected]] On Behalf Of David R > Huberman > Sent: Monday, June 19, 2017 1:37 PM > To: [email protected] > Subject: Re: [arin-ppml] IPv4 SWIP requirements (?) > > Hello, > > Albert wrote: > >> Based on comments so far, most agree that a /48 should be SWIP'ed >> since it is routable on the internet, and since so far the majority >> seems to think that /56 is small enough to not require SWIP, this >> leaves 7 choices of /49 to /55 to set the limit for SWIP in the Draft. > > I think that when we consider SWIP boundaries, we should take into account > strictly technical considerations, and not arbitrary ones. I think the > argument for requiring a /48 or larger to be SWIPed is well-grounded in > network engineering practices. I'm not sure I understand the technical > argument for anything smaller than a /48 being mandatory. > > Thank you, > David > _______________________________________________ > PPML > You are receiving this message because you are subscribed to the ARIN Public > Policy Mailing List ([email protected]). > Unsubscribe or manage your mailing list subscription at: > http://lists.arin.net/mailman/listinfo/arin-ppml > Please contact [email protected] if you experience any issues. > _______________________________________________ > PPML > You are receiving this message because you are subscribed to > the ARIN Public Policy Mailing List ([email protected]). > Unsubscribe or manage your mailing list subscription at: > http://lists.arin.net/mailman/listinfo/arin-ppml > Please contact [email protected] if you experience any issues. _______________________________________________ PPML You are receiving this message because you are subscribed to the ARIN Public Policy Mailing List ([email protected]). Unsubscribe or manage your mailing list subscription at: http://lists.arin.net/mailman/listinfo/arin-ppml Please contact [email protected] if you experience any issues.
