
Data can be sent from the Host to the virtual machine using this interface. When we attach this software interface to a virtual machine, it appears to the Host machine as if the virtual machine is physically connected to the interface via a cable.

This also creates a new network interface in software. By using this driver, VirtualBox takes data from the physical network and also inserts it into it. This driver filters the data from the physical adapter of the Host. In the Bridged networking mode of VirtualBox, a device driver called ‘net filter’ is used on the Host machine.

To overcome this limitation, a bridged networking mode was introduced. The drawback with this mode is that other devices (including the Host) and VMs on the network cannot access the guest VM and the outside internet, and the Host can access selected services on the VM only using port forwarding.

NAT or Network Address Translation is the default networking mode of any new VM inside VirtualBox. Let us first understand the concept and working of Bridged networking mode. We will check the connectivity with the ‘ping’ command. We will use Ubuntu 20.04 VM running inside Oracle VirtualBox. This guide will learn how we can configure Bridged networking mode in a VirtualBox virtual machine.

The original virtual machine has eth0 and eth1. I think there is something related to the re-generate the machines' mac-addresses. I am building parallel computing environment that needs interconnection between the virtual machine through ip network.
