Date: Thu, 18 Sep 2025 16:36:44 -0400 From: Chris Ross <cross+freebsd@distal.com> To: Karl Denninger <karl@denninger.net> Cc: freebsd-net@freebsd.org Subject: Re: IPv6 networking problems in 14.3 Message-ID: <1BF72AB3-69B6-4BC6-BA5B-6517BD35E41D@distal.com> In-Reply-To: <408DE851-47FF-476E-B7F6-C7920A93DD43@distal.com> References: <910737314.4002.1757962919189@localhost> <55365E3D-B7EA-4F95-BC1E-92910A2944EA@distal.com> <90A490DE-6BF0-4EBB-97CE-ECA690E2359C@distal.com> <5D82826E-8C0F-45CF-B9FF-093FD014E73F@distal.com> <611820c2-05f8-40bc-9b07-bef012183e30@denninger.net> <408DE851-47FF-476E-B7F6-C7920A93DD43@distal.com>
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> On 17 Sep 2025, at 14:20, Chris Ross <cross+freebsd@distal.com> wrote: > So, on the idea of trying to back-date the whole machine, I have ZFS > snapshots of the whole root from just before the first upgrade, > Aug 7/8. [=E2=80=A6] Brief update, more to come later I hope. I don=E2=80=99t know all of the magic of freebsd-update, but I was able = to figure/infer that it created versions (clones?) of the root fs at points of upgrade. I was able to swap one of those in, leaving the current system where it was at zroot/ROOT/default. I=E2=80=99ve set bootfs to the older 14.1 system and gotten that running. It _started_ looking bad, doing what the newer system was doing by sending out SOLICIT6 messages and not getting an answer from my ISP. But as Karl noted, if I waited long enough (2ish hours in my case), it eventually did get an answer! So, if anyone has suggestions of wise diagnostics to grab while it=E2=80=99s working, let me know. Then the next step is to try 4.3 again, and see if it=E2=80=99s failing in the prior way still, or if it = also starts by sending SOLICIT6 for a while and maybe after a few hours will get an answer. If that doesn=E2=80=99t, I=E2=80=99ll try interface switching again and other of the prior attempts, but being more patient will make that process take some days. So, just an update that I backed out to an early-August configuration that is again working, and I=E2=80=99ll try moving back to 14.3 again in a few days. - Chris=
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