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Understanding Networking in VirtualBox

· DevOps Zone

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Looking to better understand networking in VirtualBox? Oracle's Fat Bloke offers an extremely detailed primer:

Networking in VirtualBox is extremely powerful, but can also be a bit daunting, so here's a quick overview of the different ways you can setup networking in VirtualBox, with a few pointers as to which configurations should be used and when.
VirtualBox allows you to configure up to 8 virtual NICs (Network Interface Controllers) for each guest vm (although only 4 are exposed in the GUI) and for each of these NICs you can configure:
  1. Which virtualized NIC-type is exposed to the Guest. Examples include:
  • Intel PRO/1000 MT Server (82545EM), 
  • AMD PCNet FAST III (Am79C973, the default) or 
  • a Paravirtualized network adapter (virtio-net).
  1. How the NIC operates with respect to your Host's physical networking. The main modes are:

You can read the rest over at the Fat Bloke's blog.

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