Install CentOS 6.9 with VMware under Ubuntu 16.04 and then install the KVM inside to configure the Network Bridge to be unable to access the Internet

Don't try, this problem is not resolved, already using VMware installed a layer of virtual machine, and then installed in the KVM, the network level has changed, even if the network bridge is not configured to surf the Internet.

But try it this way, it doesn't have to be successful: Bind VMware's virtual machine to another physical NIC, and then configure it properly.

Outside the question:

I don't think it's necessary to install a layer of VMware to install virtual machines, and since Linux is used, it's better to use KVM technology directly to implement virtual machines.

Install CentOS 6.9 with VMware under Ubuntu 16.04 and then install the KVM inside to configure the Network Bridge to be unable to access the Internet