nanog mailing list archives
Re: WKBI #586, Redploying most of 127/8 as unicast public
From: David Conrad <drc () virtualized org>
Date: Thu, 18 Nov 2021 10:02:01 -0800
On Nov 18, 2021, at 9:00 AM, John R. Levine <johnl () iecc com> wrote:
The only effort involved on the IETF's jurisdiction was to stop squatting on 240/4 and perhaps maybe some other small pieces of IPv4 that could possibly be better used elsewhere by others who may choose to do so.The IETF is not the Network Police, and all IETF standards are entirely voluntary.
True…
Nothing is keeping you from persuading people to change their software to treat class E addresses as routable other than the detail that the idea is silly.
Of course, it’s not quite that simple. First, https://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xhtml <https://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xhtml> would need to be updated, then the RIRs would need to issue a request according to https://www.icann.org/resources/pages/allocation-ipv4-rirs-2012-02-25-en <https://www.icann.org/resources/pages/allocation-ipv4-rirs-2012-02-25-en>. At that point, existing requests lodged at the RIRs could be fulfilled using the formerly reserved space. Network operators that received the allocations could then number their devices with the new address space and announcing that space into the routing system. Of course, there are probably an unknowable number of “bogon” filters out there that are hardcoded into various bits of infrastructure that would need to be updated. There are also various hardware, firmware, and software IP stack implementations, perhaps sitting in closets somewhere, that still think they can’t use reserved space that would need to be updated/replaced. As far as I can tell, assertions about the scale of that update/replace exercise are based on limited data. Perhaps as an alternative to declaring various chunks of reserved space as free for use, a chunk of that space could be allocated to one or more of the RIRs and announced with a set of services placed upon it to see just how much actually breaks, similar to what APNIC and Cloudflare did with 1.1.1.0/24? Regards, -drc
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Current thread:
- Re: Redploying most of 127/8 as unicast public, (continued)
- Re: Redploying most of 127/8 as unicast public scott (Nov 17)
- Re: Redploying most of 127/8 as unicast public Mark Andrews (Nov 17)
- Re: Redploying most of 127/8 as unicast public Joe Maimon (Nov 17)
- Re: WKBI #586, Redploying most of 127/8 as unicast public John Levine (Nov 17)
- Re: WKBI #586, Redploying most of 127/8 as unicast public Joe Maimon (Nov 17)
- Re: WKBI #586, Redploying most of 127/8 as unicast public Mark Andrews (Nov 17)
- Re: WKBI #586, Redploying most of 127/8 as unicast public Joe Maimon (Nov 18)
- Re: WKBI #586, Redploying most of 127/8 as unicast public John R. Levine (Nov 18)
- Re: WKBI #586, Redploying most of 127/8 as unicast public Joe Maimon (Nov 18)
- Re: WKBI #586, Redploying most of 127/8 as unicast public Justin Streiner (Nov 18)
- Re: WKBI #586, Redploying most of 127/8 as unicast public David Conrad (Nov 18)
- Re: WKBI #586, Redploying most of 127/8 as unicast public Jim (Nov 18)
- Re: Redploying most of 127/8 as unicast public Mark Andrews (Nov 17)
- Re: Redploying most of 127/8 as unicast public scott (Nov 17)
- Re: WKBI #586, Redploying most of 127/8 as unicast public Nick Hilliard (Nov 18)
- Re: WKBI #586, Redploying most of 127/8 as unicast public Steven Bakker (Nov 18)
- Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast John Gilmore (Nov 18)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast Nick Hilliard (Nov 18)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast Randy Bush (Nov 18)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast John Gilmore (Nov 18)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast David Conrad (Nov 18)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast Nick Hilliard (Nov 19)
- Re: Redeploying most of 127/8, 0/8, 240/4 and *.0 as unicast Joe Maimon (Nov 19)