[Bug 263288] IPv6 system not responding to Neighbor Solicitation

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 15 Apr 2022 09:59:35 UTC

Zhenlei Huang <zlei.huang@gmail.com> changed:

           What    |Removed                     |Added
                 CC|                            |zlei.huang@gmail.com

--- Comment #1 from Zhenlei Huang <zlei.huang@gmail.com> ---
The `ipv6_privacy` is meant to use and prefer privacy addresses as per RFC
4941. It should not has any relationships to this issue.

The `ndp -na` result shows that the neighbor cache entry for your router / gw
is stale.

fe80::1%em0                          00:05:73:a0:0f:ff    em0 23h56m36s S R
fe80::8678:acff:fe1c:ec41%em0        84:78:ac:1c:ec:41    em0 23h49m7s  S R

Can you please try to ping your gw and share the ndp result?

# ping6 fe80::1%em0
# ping6 fe80::8678:acff:fe1c:ec41%em0

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