http://bugzilla.suse.com/show_bug.cgi?id=1113199 Bug ID: 1113199 Summary: ipv6 is not enabled correctly on bridges Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.0 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Virtualization:Other Assignee: virt-bugs@suse.de Reporter: william@blackhats.net.au QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- When creating a virtual network in libvirt, even with ipv6 enabled = true in virt-manager, or a configuration such as: <network ipv6='yes'> <name>ra2</name> <uuid>98e7a9a1-9606-4bf0-b9ed-13bda85e7ee2</uuid> <bridge name='virbr2' stp='on' delay='0'/> <mac address='52:54:00:72:83:79'/> <domain name='ra2'/> </network> Ipv6 traffic does not function correctly on the created bridge device. The cause is that the sysctl for the associated bridge is not correctly configured: # sysctl -a | grep -i disable_ipv6 ... net.ipv6.conf.virbr2.disable_ipv6 = 1 net.ipv6.conf.virbr2-nic.disable_ipv6 = 0 This sysctl should be set to "0", to allow ipv6 traffic to operate correctly. The effect is the out of the box on OpenSUSE leap, ipv6 does not work on virsh bridge networks. Work around is: sysctl -w net.ipv6.conf.virbr2.disable_ipv6=0 -- You are receiving this mail because: You are on the CC list for the bug.