Default VirtualBox network with NAT

VirtualBox uses a NAT by default to allow each VM to reach internet.

https://www.nakivo.com/blog/virtualbox-network-setting-guide/

• Default IP assigned to the VM is 10.0.2.15
• Default Gateway is 10.0.2.2
  

Read more: https://www.nakivo.com/blog/virtualbox-network-setting-guide/