Settings for other machines/adapters are similar. The server VM must have two (2) network adapters: NAT and internal network netb.īelow are screenshots of the settings for router adapter 1 (NAT) and router adapter 3 (internal). The router VM must have three (3) network adapters: NAT, internal network neta, and internal network netb. The client VM must have two (2) network adapters, one using NAT and the other using an internal network, e.g.

Be sure to re-initialise the MAC address for each. Sudo apt install openssh-server man manpages manpages-dev nanoĬreate full clones of the base VM to produce three (3) machines, referred to as client, router and server. Install any software that is necessary on all machines, e.g. Setup a base Linux machine using NAT networking ( NOT using bridged or internal networking). You may use different IP addresses, but be sure to make the corresponding changes in /etc/network/interfaces.Ī 32 minute video demonstrating and explaining the steps below is also available:

The aim is to create a (virtual) Internet of 3 Linux VMs within VirtualBox using internal networking, and also allow those VMs access to the real Internet via NAT. Building an Internal Network in VirtualBox Introduction

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