I have two virtual machines on my laptop. One is CentOS 7 (server) and the other is CentOS 6 (client).

 - When I ping from server to client, it is working.
 - When I ping from client to server, it is giving error destination net unreachable.

Where is the problem? 


> [![enter image description here][1]][1]


  [1]: https://i.sstatic.net/fuv8K.png