nanog mailing list archives
Re: 240/4 (Re: 44/8)
From: Ross Tajvar <ross () tajvar io>
Date: Tue, 23 Jul 2019 00:15:44 -0400
Editor's note: This draft has not been submitted to any formal process. It may change significantly if it is ever submitted. You are reading it because we trust you and we value your opinions. *Please do not recirculate it.* Please join us in testing patches and equipment!
(emphasis mine) Interesting choice to host it in a public Github repo, then... On Mon, Jul 22, 2019 at 11:17 PM Mikael Abrahamsson <swmike () swm pp se> wrote:
On Mon, 22 Jul 2019, Owen DeLong wrote:2. It was decided that the effort to modify each and every IPstack in order to facilitate use of this relatively small block (16 /8s being evaluated against a globalrun rate at the time of roughly 2.5 /8s per month, mostlyto RIPE and APNIC) vs. putting that same effort into modifying each and every IP stack to supportIPv6 was an equation of very small benefit for slightlysmaller cost. (Less than 8 additional months of IPv4 free pool vs. hopefully making IPv6 deployablebefore IPv4 ran out).Well, people are working on making 240/4 usable in IP stacks: https://raw.githubusercontent.com/dtaht/unicast-extensions/master/rfcs/draft-gilmore-taht-v4uniext.txt There have been patches accepted into some BSDs and into Linux tools/kernel and other operating systems to make 240/4 configurable and working as unicast space. I don't expect it to show up in DFZ anytime soon, but some people have dilligently been working on removing any obstacles to using 240/4 in most common operating systems. For controlled environments, it's probably deployable today with some caveats. I think it'd be fine as a compliment to RFC1918 space for some internal networks. -- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- RE: 44/8, (continued)
- RE: 44/8 Naslund, Steve (Jul 22)
- Re: 44/8 Stephen Satchell (Jul 22)
- Re: 44/8 Owen DeLong (Jul 22)
- 240/4 (Re: 44/8) Mikael Abrahamsson (Jul 22)
- Re: 240/4 (Re: 44/8) Owen DeLong (Jul 22)
- Re: 240/4 (Re: 44/8) George Herbert (Jul 22)
- Re: 240/4 (Re: 44/8) Ross Tajvar (Jul 22)
- Re: 240/4 (Re: 44/8) Greg Skinner via NANOG (Jul 26)
- Feasibility of using Class E space for public unicast (was re: 44/8) Doug Barton (Jul 26)
- Re: Feasibility of using Class E space for public unicast (was re: 44/8) William Herrin (Jul 26)
- Re: Feasibility of using Class E space for public unicast (was re: 44/8) Doug Barton (Jul 26)
- Re: Feasibility of using Class E space for public unicast (was re: 44/8) William Herrin (Jul 26)
- Re: Feasibility of using Class E space for public unicast (was re: 44/8) Doug Barton (Jul 27)
- Feasibility of using Class E space for public unicast (was re: 44/8) bzs (Jul 27)
- Re: Feasibility of using Class E space for public unicast (was re: 44/8) johnl (Jul 27)
- Re: Feasibility of using Class E space for public unicast (was re: 44/8) Randy Bush (Jul 27)
- Re: Feasibility of using Class E space for public unicast (was re: 44/8) Stephen Satchell (Jul 27)