LOL, fair enough. Feel free to yell at me for this third question and tell me to start a new thread.
How do you recommend I should proceed in diagnosing these "ndp info overwritten" messages? It seems bizarre they started out of nowhere. Before May 2, I didn't have any; but since, I get them every 90 minutes or so. There is nothing that stands out in my logs that would suggest it was a software, hardware, or configuration change on my end. I changed hardware in March. I upgraded to OpenBSD 7.3 in late April. The first patch for 7.3 was a day after the first message. I upgraded my BIOS/UEFI in June. I haven't changed my DOCSIS 3.1 modem. There were no reboots around that time. I am still with the same ISP. I found this from @bugs: https://marc.info/?l=openbsd-bugs&m=165130576328299&w=2 but I have always had "allow-opts" for both ingress and egress ICMPv6 traffic, so Otto Moerbeek's workaround is not applicable. I tried the opposite (i.e., removing "allow-opts") as a shot in the dark, and it unsurprisingly didn't fix the problem (assuming there is one). I do recall helping the maintainer/creator of my DHCPv6 client, dhcpcd, around that time fix some other bugs; however my logs show that was a few hours after the first "ndp info overwritten" message. Nonetheless, I temporarily replaced the current version of dhcpcd which contains several bug fixes with the older version that is part of the -release packages. Even with that version, I was still getting these messages. Can you provide any guidance?
