Date: Wed, 12 Jun 2024 17:29:36 +0200 From: Michael Gmelin <grembo@freebsd.org> To: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> Cc: Poul-Henning Kamp <phk@phk.freebsd.dk>, current@freebsd.org Subject: Re: 14.1-R rc.conf/ifconfig netmask issue was really hard to figure out Message-ID: <20240612172936.52cf62f0.grembo@freebsd.org> In-Reply-To: <404q3127-9p57-1oqq-qqoo-3479q27830ss@yvfgf.mnoonqbm.arg> References: <202406120747.45C7lRGZ009491@critter.freebsd.dk> <5ss109s8-1086-700s-p199-rpr429on41p9@yvfgf.mnoonqbm.arg> <202406121436.45CEaZ0o011207@critter.freebsd.dk> <20240612165722.5ec89d11.grembo@freebsd.org> <05ors010-q60q-s261-no16-1577rq1p1610@yvfgf.mnoonqbm.arg> <404q3127-9p57-1oqq-qqoo-3479q27830ss@yvfgf.mnoonqbm.arg>
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On Wed, 12 Jun 2024 15:11:14 +0000 (UTC) "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> wrote: > On Wed, 12 Jun 2024, Bjoern A. Zeeb wrote: > > > On Wed, 12 Jun 2024, Michael Gmelin wrote: > > > >> > >> > >> On Wed, 12 Jun 2024 14:36:35 +0000 > >> "Poul-Henning Kamp" <phk@phk.freebsd.dk> wrote: > >> > >>> -------- > >>> Bjoern A. Zeeb writes: > >>> > >>>>> I had a machine with this line in /etc/rc.conf: > >>>>> > >>>>> ifconfig_bla0="192.168.87.11" > >>>>> > >>>>> I found out the hard way, that this defaults to /8 now. > >>>> > >>>> Did you track it down to a specific change? I.e. is this > >>>> ifconfig/netlink or the old kernel change from like two years(?) > >>>> ago? > >>>> > >>>> Do you have a time window when this broke as that'll help people > >>>> to bisect? > >>> > >>> I have no idea, sorry, I just freebsd-updated this one box... > >>> > >> > >> I just tried on 14.0-p6, same there: > >> > >> # ifconfig vtnet0 192.168.87.11 > >> ifconfig: WARNING: setting interface address without mask is > >> deprecated, default mask may not be correct. > >> > >> Interestingly, `ifconfig vtnet0 10.0.0.1` uses "/24" whereas > >> 192.168.87.11 uses "/8". > >> > >> This dates back to: > >> https://cgit.freebsd.org/src/commit/?id=4bf44dd73bc0a > > > > No it pre-dates that chnage. > > > > It goes back to d8237b95552807e937fc389c7e2237679ef0c984 and related > > changes. > > Sorry I hit send too early > > And I think it came out of > > commit 2f35e7d9fa03f27543f347cd6277af5bfc6a7e95 > commit 20d59403961d531467cfab22163f49c131cc8b55 > Hm, the deprecation warning was introduced in 2021 and was already part of 13.1 it seems: https://cgit.freebsd.org/src/commit/?id=4dbba5ab609c9 Going through these various commits, default behavior changed. Just tried on 13.2, where 10.x.x.x gave me /8 and 192.168.x.x gave me /24. @phk From which version did you upgrade? Best -- Michael Gmelin
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