Date: Wed, 13 Nov 2024 21:25:16 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@freebsd.org> To: Ed Maste <emaste@freebsd.org> Cc: "src-committers@freebsd.org" <src-committers@freebsd.org>, "dev-commits-src-all@freebsd.org" <dev-commits-src-all@freebsd.org>, "dev-commits-src-main@freebsd.org" <dev-commits-src-main@freebsd.org> Subject: Re: git: 9e469437993b - main - inet.4: drop "experimetal use" from net0 and net240 descriptions Message-ID: <92rrs9s2-0846-ppno-o673-69np1773qq40@serrofq.bet> In-Reply-To: <CAPyFy2CjdqAeuG=n6FsrMgqYzjkuuEnSRL0nFSpFcFF1RKnQbQ@mail.gmail.com> References: <202411111247.4ABClC6l042813@gitrepo.freebsd.org> <46spnoss-r0s0-92o3-60r7-r2o49ro82580@SerrOFQ.bet> <333D66C8-12BC-43CD-B33B-B410B8B3BC22@FreeBSD.org> <CAPyFy2CjdqAeuG=n6FsrMgqYzjkuuEnSRL0nFSpFcFF1RKnQbQ@mail.gmail.com>
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On Wed, 13 Nov 2024, Ed Maste wrote: > On Tue, 12 Nov 2024 at 08:56, Zhenlei Huang <zlei@freebsd.org> wrote: >> >> Emm, while I was reviewing this change, I also wondered if it is too early to remove the word *experimental* as the RFC is still in draft status. Well later I think ( maybe I'm wrong ) RFC actually lag behind the reality ( I'm saying FreeBSD as a vendor and move fast action ) so I think it is OK to remove now. > > My argument for the man page update was that the sysctl controls use > of those addresses, regardless of purpose. Note that the sysctl > description captures this subtle distinction already: > > net.inet.ip.allow_net240: Allow use of Experimental addresses, aka > Class E (240/4) > > That is, it's "... use of Experimental addresses ..." not "... > experimental use of ..." > > Unfortunately it's a bit more of a mess than that. Most operating > systems are allowing 240/4 by default and as it turns out we > (unintentionally?) also allow configuring 240/4 the host's IPv4 > address already. This sysctl actually controls only forwarding, and > we'll need to update anyway. I'm inclined to indicate in the man page > that these sysctls control forwarding, and add a note along the lines > of "at time of writing this region is reserved." Sounds good to me. Thank you! /bz -- Bjoern A. Zeeb r15:7
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