Thank you - that'll work great for the short term until Nachi's patch lands. We still need a +2 from another Nova dev for a patch that disables hairpinning when Neutron is being used [1]. The patch to allow ICMPv6 into instances for SLAAC just landed today[2]. So we're making progress. [1] https://review.openstack.org/#/c/56381/ [2] https://review.openstack.org/#/c/53028/ -- Sean M. Collins