A total of two servers hosting (Ubuntu), do the docker swarm cluster configuration, each server three centos container,
Overlay network for 192.168.3.0/24, six between virtual machine (IP 192.168.3.11-16) able to ping each other, everything is normal,
Question phenomenon:
Host machine can't any virtual machine,
Tried many methods, and want to see the bosses can give points out that the solution
