I have a window 7 VB host, with wired and wifi. Normally, it is connected to my home net via a wire.

I have a a Debian guest with two adapters configured: one id bridged, and one is host only.

When plugged in, my VM hits the internet without a second thought, but when windows is connected via wifi, the VM can no longer reach the internet.

I thought that VBox would be using the host as its internet gateway, so I don't see why connecting to the internet via the host should fail when the host is connected via wifi.

How do I configure Virtual box networking so that my VM can reach the net regardless of network medium?

  • 1
    Does VBox has special settings for bridged adapter? I mean, your host has two, and VBox uses LAN always. I believe, you may manually force it to use WiFi.
    – Maximus
    Jan 25, 2013 at 7:11

2 Answers 2


I was even dumber then I thought. Once I added a Wifi nic to the host under virtual box, and brought the wifi adapter up under the guest, it worked. Sigh.

  • What did you do? VirtualBox has no concept of WiFi inside.
    – guntbert
    Jan 13, 2014 at 21:07
  • I thought that having a bridged network interface would be all that I needed, but I was incorrect. In order to use the wifi nic on the laptop, I had to define it to virtual box and enable it on the guest.
    – Len Jaffe
    Jan 14, 2014 at 14:11
  • 1
    What you should have done: tell VBox to bridge the virtual adapter to your WiFi adapter.
    – guntbert
    Jan 14, 2014 at 20:23
  • I thought I had, but apparently not.
    – Len Jaffe
    Jan 15, 2014 at 15:42

I believe that it is not a routing but rather wireless security issue. Something along the lines of wpa_supplicant only supporting one adapter(virtual or physical) at a time. Try disabling WIFI encryption (just for the test) and see it the guest would be able to connect while the host is connected via unencrypted WIFI.

  • Not sure I'm following you, I expect the windows host to be the internet gateway, and the VM to communicate via a "wired" connection to and through the windows host.
    – Len Jaffe
    Jan 25, 2013 at 18:48
  • 1
    For the host to be the gateway - the guest network adapter type should be "NAT" instead of "bridged"
    – Alex P.
    Jan 25, 2013 at 19:28
  • Because bridged makes it possible for the guest to use/share the hosts NICs as if they belonged to the guest? But can I assign the guest's IP (so I can hit the web services on the guest without adjusting the host file every time) ?
    – Len Jaffe
    Jan 25, 2013 at 21:03

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.