[Bug 263288] IPv6 system not responding to Neighbor Solicitation

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 21 Apr 2022 05:50:54 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263288

--- Comment #10 from wcarson.bugzilla@disillusion.net ---
I’m not sure what to make of this, but it does seem to be what I described
originally:

Apr 21 00:39:53 roast kernel: nd6_ns_input: NS packet from non-neighbor
Apr 21 00:39:53 roast kernel: nd6_ns_input: src=2600:3c00::8678:acff:fe1c:ec41
Apr 21 00:39:53 roast kernel: nd6_ns_input: dst=ff02:1::1:ffb0:a56f
Apr 21 00:39:53 roast kernel: nd6_ns_input: tgt=2600:3c00::f03c:91ff:feb0:a56f

However in the above debug message it added an extra :1 after ff02 in the
destination that does not appear in the tcpdump. Is that normal?

Also how does it decide what is a non-neighbor? The src & tgt look to be on the
same /64 to me.

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