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Message-ID: <5123FB32.7050101@candelatech.com> Date: Tue, 19 Feb 2013 14:22:42 -0800 From: Ben Greear <greearb@...delatech.com> To: Eric Dumazet <eric.dumazet@...il.com> CC: Erik Hugne <erik.hugne@...csson.com>, netdev@...r.kernel.org, kaber@...sh.net, ataschner@...e.com Subject: Re: [MacVLAN] failure to deliver reassembled IPv6 multicast traffic On 02/15/2013 11:35 AM, Eric Dumazet wrote: > On Fri, 2013-02-15 at 11:27 -0800, Ben Greear wrote: > >> For some reason I was thinking this wasn't fully fixed for IPv4, but >> maybe it is..the bug in our internal tracker only mentions IPv6 >> as having issues... >> >> We'll do some testing on IPv4 sometime soon to make sure, and can test >> IPv6 patches as well... > > This worries me a bit, as I wrote this patch because you reported the > issue. We just did some testing on this on the 3.7.6+ kernel. IPv4 multicast to mac-vlans works OK with large packets if there is a single multicast receiver, but does NOT work if there are multiple multicast receivers (ie, several mac-vlans with an mcast receive bound to each mvlan). Our setup also involves routing rules and send-to-self rules, with sender on the same machine, but I'm not sure that matters too much or not. Multiple receivers work fine with smaller packets that do not need to be segmented. Thanks, Ben -- Ben Greear <greearb@...delatech.com> Candela Technologies Inc http://www.candelatech.com -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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