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Date:   Sun, 15 Nov 2020 17:02:44 +0100
From:   Andrew Lunn <andrew@lunn.ch>
To:     "Tj (Elloe Linux)" <ml.linux@elloe.vision>
Cc:     Vladimir Oltean <olteanv@gmail.com>, netdev@vger.kernel.org,
        chris.packham@alliedtelesis.co.nz, f.fainelli@gmail.com,
        marek.behun@nic.cz, vivien.didelot@gmail.com, info <info@turris.cz>
Subject: Re: dsa: mv88e6xxx not receiving IPv6 multicast packets
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> At some point, with absolutely nothing showing in any Mox log in the
> meantime, additional renewals will fail.

What might be interesting is running

ip monitor

and

bridge monitor

Look for neighbours being timed out do to inactivity.

       Andrew