![]() Note that Port Forward settings are not available for the individual adapter these apply at the Host level for the whole NAT Network.įigure 16: Settings for NAT Network adapterĪs NAT Network is configured as a global preference in the VirtualBox Manager, the addition of a network adapter using NAT Network to any individual virtual machine is simple. Of the network to use, which is a simple drop-list selection from the available NAT networks on the Host. You can also use port forwarding within NAT Networks as for simple NAT adapters the dialog for this is the same.įor the virtual machine adapter itself, there are two specific settings, Attached to: NAT Network and the name Convention has it to use 10.x.x.x ranges. ![]() While you can setĪny range, it shouldn't overlap IP address ranges on other networks or adapters. The default address range for the inbuilt NAT Network is 10.0.2.0/24, but this can be changed. Originally designed to extend the life of IPv4 addressing globally, as well as slow the growth of routing tables, VirtualBox has included it as an efficient method of allocating addresses to virtual networks. Short for Classless Inter-Domain Routing, this is an IP addressing scheme that improves the allocation of IP addresses. The most important item in this dialog, though, is the Network CIDR. If we create a new NAT network, we get the properties dialog:įrom here you can set the NAT Network name, DHCP service, IPv6 address support and the enable flags. Also from here, you can activate and deactivate NAT networks. Green ‘ +’ to add a new network, a red ‘ x’ to delete a network and an orange cog wheel to open the properties dialog. This has the usual arrangement of icon-buttons: a Go to Network in the sidebar menu to open For whatever reason, the Oracle interface team decided to put NAT network under File, Preferences. As it is a top-level service available to all virtual machines, it is found in the VirtualBox Manager. VirtualBox includes a default NAT network with theīasic install. VirtualBox has a built-in NAT router which uses the physical network interface controller of the VirtualBox Host as an external network interface, as it does for NAT mode. You cannot access the Guest machine from the Host machine when using the NAT Network mode unless you configure Port Forwarding in the VirtualBox network settings, or extend the network by adding an adapter in a different mode.
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