- replace /etc/hosts based name resolution with embedded DNS for user defined networks - overlay veth cleanup: docker/docker#18814 - check before programming ipv6 in bridge: docker/docker#19139 - diable DAD: docker/docker#18871 Signed-off-by: Santhosh Manohar <santhosh@docker.com> Upstream-commit: 8ccf5cffa7cd3cfd8e83fdaebc60a9f3d2473bcc Component: engine