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Recover data from damaged or formatted VMFS disks or VMDK files

What are VirtualBox network settings and modes?

Here you will find out:

  • what VirtualBox network settings are
  • what VirtualBox network modes are
  • how DiskInternals software can help you

Are you ready? Let's read!

VirtualBox network settings

Today, virtualization of the computing environment is already an integral part of the necessary and productive work of any self-respecting business. After all, virtualization is about using virtual machines in almost all cases when you would otherwise use physical computers. This requires the ability to consistently connect physical and virtual networks using virtual network adapters. VirtualBox virtual machines can be connected to different networks; thus, VirtualBox provides several network modes for virtual machines (Not Attached, NAT Network, NAT, Bridged Adapter, Host-Only Adapter, Internal Network, Generic Driver). In order to properly use them, you need to know as much information as possible about the VirtualBox network settings. This is what this article will be about.

What are VirtualBox network modes?

Now let's understand the VirtualBox network settings for each of the possible network modes.

  • 1. Not Attached mode: when the guest sees the NIC whose virtual cable has been unplugged.
  • 2. Network Address Translation (NAT): the simplest network mode for accessing external networks for a guest machine. In this case, external access to the guest system cannot be established. If you need to access services on the guest from the host, you must configure the secondary interface using the host-only network.
  • 3. The NAT Network: available since VirtualBox 4.3, with the same functionality as a router. Guest systems can communicate with TCP and UDP over IPv4 and IPv6 among themselves and with the outside world. The NAT service is connected to an internal network, so the virtual machines using this service must be connected to this internal network. When the NAT service is configured, you select the name of the internal network and it will be recreated if it does not already exist.
  • 4. Bridged network: provides the guest system with direct access to the network to which the host system is connected.
  • 5. Internal network: guests can communicate with each other if they are connected to the same internal network. In any other case, communication is impossible.
  • 6. Host-only network: available communication solely between the connected guest systems and the host system. All configured network interfaces will be used in the host system for a host-only network. The IP address on the host and the DHCP server for this network will be configured directly in VirtualBox: Click the File tab and select “Global Settings”. Next, click on "Network" and right-click on the tool icon. Configure the IP address for the host only. Once done, click on the DHCP Server tab and change the DHCP server settings.
  • 7. Universal networks (Generic Driver): Choose one of the following network sub-modes:
  • VDE (virtual distributed Ethernet) network
  • UDP tunnel

Use VMFS Recovery to recover your data

DiskInternals VMFS Recovery is a professional application that should be installed by every owner of a virtual machine. It helps to recover hopelessly lost or damaged VMDK files, or create images of damaged and faulty disks. VMFS Recovery™ automatically (thanks to the Recovery Wizard) checks the current state of the VMware VMFS datastore, RAID (if used) and volumes, and reads VMFS structures, restoring the found data where possible.

After searching for the data and mounting the file, you always have the opportunity to see amazing results for free. After that, simply buy a license to export data to remote storage devices and use the application whenever you want. If you think that such an application is beyond your power, just activate the Recovery Wizard and follow its instructions until the stage of saving the recovered data.

Instructions for DiskInternals VMFS Recovery™ are below:

  • Download and install the utility on your device.
  • When you open the application on your computer, connect via SSH (if not required, then skip this step).
  • Left-click to open the specific drive and activate the drive scan process.
  • When the results appear, find the necessary VMDK files and mount them; it does not take much time and effort.
  • Preview the VMDK file completely free with the Preview option.
  • After that, buy a license for DiskInternals VMFS Recovery on the website and get full access to export files to remote media. After that, the technical support function is automatically activated for a year; you can use it in unclear situations.

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