Date: Sun, 14 Feb 2021 17:06:36 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 253469] IPv6 default route vanishes Message-ID: <bug-253469-7501-cgDZNb2zUh@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-253469-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-253469-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253469 Bjoern A. Zeeb <bz@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bz@FreeBSD.org --- Comment #10 from Bjoern A. Zeeb <bz@FreeBSD.org> --- (In reply to courtney.hicks1 from comment #0) To me this sounds that unsolicited RAs (as send out periodically by your router) don't make it while solicited (rtsol "asking") work. That may imply that there are filters somewhere not working properly or multicast is not properly received. If you do see the unsolicited RAs from your router in tcpdump -ln -s0 -i re0 -vvv icmp6 then can you do the following: (0) confirm no firewall active on your local system? (a) wait for the default route to go away (b) do not restart anything! (c) start tcpdump as per above (d) when you see an unsolicited RA coming back in, check (in a 2nd terminal= ) if your default route is back or not. (d1) if it is not; please report (d2) if it is back then stop tcpdump, do an ifconfig re0 promisc; keep watching if your default route goes away again or not during the next 25 minutes and report back. Otherwise and/or in addition sysctl net.inet6.icmp6.nd6_debug=3D0xff may al= so help Alexander to further debug this. --=20 You are receiving this mail because: You are the assignee for the bug.=
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