Ya, Java client is on another machine (IP 192.168.1.3), and the host VM is running on different machine. I have created a range of floating IPs and associated it to the VM instance. The VM instance can ping the floating IP but unfortunately the host and Java client can not ping the floating IP. When the host ping the floating IP, it shows:
Ping: sendmsg: Operation not permited
I have security group with the rule of ALL TCP, ALL ICMP, ALL UDP. Do I need to change anything in nova.conf? Thanks.