Begin forwarded message:
Date: Thu, 28 May 2015 10:34:55 +0000 From: "bugzilla-dae...@bugzilla.kernel.org" <bugzilla-dae...@bugzilla.kernel.org> To: "shemmin...@linux-foundation.org" <shemmin...@linux-foundation.org> Subject: [Bug 99081] New: Bridge multicast snooping breaks ICMPv6 https://bugzilla.kernel.org/show_bug.cgi?id=99081 Bug ID: 99081 Summary: Bridge multicast snooping breaks ICMPv6 Product: Networking Version: 2.5 Kernel Version: 4.0.4 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Other Assignee: shemmin...@linux-foundation.org Reporter: sgunder...@bigfoot.com Regression: No Hi, I've seen this reported many times around the net, with no definite solution; since I got hit by it again and now used the latest kernel, I thought the best place would be the kernel Bugzilla. I have a bridge br0 with eth0 on it, and then some tap devices from KVM guests. In this situation, by default, I don't have IPv6. I can't ping anything because ND fails. I've seen this over multiple kernel versions for years, so I'm fairly certain this is not something about my specific setup. The common workaround is: echo 0 > /sys/devices/virtual/net/br0/bridge/multicast_snooping which immediately makes IPv6 work well again. IPv6 unicast is unaffected; only multicast (ie., ND) seems to have the problem. -- You are receiving this mail because: You are the assignee for the bug. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
