Hello, Here is my home lap network settings: Home computer 172.28.0.130 Ubuntu eth0 (no IP address) eth1 172.28.0.105 (for managmeent) br100 10.0.47.1 map to eth0 instance01 10.0.47.2 My question is home computer can't ping instance01 10.0.47.2, even Ubuntu itselves, I already allow security group ICMP ALL, can anyone help ? Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20150505/66fda4a6/attachment.html>