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Public Network

Check host network configuration:

ifconfig                # active interfaces
lspci | grep -i network # all network interface cards
lshw -class network     # detailed information on hardware and interfaces

Bashed on step-4, change the network configuration to:

    demo.vm.network "public_network", ip: "192.168.100.100", :netmask => "255.255.255.0", :bridge => 'eth2'

Result, the values in ip and netmask shoule be set according to chosen bridge interface.

Then, try to ping/ssh this IP address from other hosts in the same network.

Zhan.Shi @ 2017