From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6AAABC55ABD for ; Mon, 16 Nov 2020 07:09:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F349C2071E for ; Mon, 16 Nov 2020 07:09:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=elloe.vision header.i=@elloe.vision header.b="j1DswzEI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727384AbgKPHHt (ORCPT ); Mon, 16 Nov 2020 02:07:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60842 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727097AbgKPHHs (ORCPT ); Mon, 16 Nov 2020 02:07:48 -0500 Received: from iam.tj (soggy.cloud [IPv6:2a01:7e00:e000:151::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 221A2C0613CF for ; Sun, 15 Nov 2020 23:07:48 -0800 (PST) Received: from [10.0.40.123] (unknown [51.155.44.233]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by iam.tj (Postfix) with ESMTPSA id 5BA31340AD; Mon, 16 Nov 2020 07:07:45 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=elloe.vision; s=2019; t=1605510465; bh=+HDQ/2PMLTuiEzwt9PO+0HAVM4FlCakMLWx2bdXjAdc=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=j1DswzEId5Wiwm4XDmcqclIvnLf/e/RC7BFwmR7X78VKgz6wK8fQvtmx56sxC9fNU OA44pTEF1BCZ4e091MpcYQ2dwx1Kblybk+V2IZQcEcBs4wz7J9I+27jfz8sAxQumLK 6H2GRo1kK6vwaMvmWjKXWVr3cz8E7/3FWqq52iMH5pRVgYgTWiZjBP9dOkWV6LNV+p /VxshGsk4UJFUyAyBoWTkYeUjCaawAGQcK7KG4D2y+ngZ0UsHw73MtAswYZCW+Av0R 9mhf2snzsIuVLWG1tVQAMUj6c0OorVLJ86rYfhAeywCZNvBaKHemPxrqk+ujcm0ZkQ lTOH9Cy/fffBQ== Subject: Re: dsa: mv88e6xxx not receiving IPv6 multicast packets To: Andrew Lunn Cc: Vladimir Oltean , netdev@vger.kernel.org, chris.packham@alliedtelesis.co.nz, f.fainelli@gmail.com, marek.behun@nic.cz, vivien.didelot@gmail.com, info References: <1b6ba265-4651-79d2-9b43-f14e7f6ec19b@alliedtelesis.co.nz> <0538958b-44b8-7187-650b-35ce276e9d83@elloe.vision> <3390878f-ca70-7714-3f89-c4455309d917@elloe.vision> <20201114184915.fv5hfoobdgqc7uxq@skbuf> <20201115160244.GD1701029@lunn.ch> <79ad87d1-15e0-7ccc-e1ad-4aab3fdf0d20@elloe.vision> <20201115172705.GF1701029@lunn.ch> From: "Tj (Elloe Linux)" Organization: Elloe CIC Message-ID: <05b1c5de-3d1d-cc06-0e6a-e93e62c7a2c0@elloe.vision> Date: Mon, 16 Nov 2020 07:07:43 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201115172705.GF1701029@lunn.ch> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 15/11/2020 17:27, Andrew Lunn wrote: > So check if you have an IGMP querier in the network. If not, try > turning it on in the bridge, > > ip link set br0 type bridge mcast_querier 1 Thanks Andrew - that does indeed seem to have solved the issue. I'm relieved this isn't a hardware or driver issue after all but annoyed we didn't figure this out ourselves months ago! Is there any other kernel 'nob' to alter this? I'm trying to understand why we're seeing two different results with seemingly identical kernel/OS versions and network configurations.