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Nirmik
Asked: 2012-05-30 08:44:17 +0800 CST

No internet connectivity in virtual-box with both Host and Virtual OS being 12.04

  • 772

I have Precise 12.04 installed as the host OS. In VirtualBox,I also have installed 12.04.

I am not able to connect the Virtual 12.04 to the host internet. I have tried selecting all the available options in the network adapters (NAT,Host only,Bridge,etc), but non of them is working. In the some options some stuff has to be entered manually, which I do not know what to enter.

Where am I going wrong in the settings?

12.04

5 Answers

  1. Best Answer

    The NAT connection needed to be selected with the hardware being:

    AMD PCNet FAST III (Am79C973, the default)

    This works with almost any OS (as mentioned on the Virtualbox help page). The Intel setting for some reason did not work.

    For Network setups with heavy router settings, you may have to use Bridged option with "PCNet FAST III" as the default.

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  2. VB likely made a "Unidentied Network" connection to your real machine and it uses this as its source for internet connection. Follow the settings below to check your basics for getting internet to work in you virutal OS.

    Network Settings: *Select NAT under "Attached to:" *"Adapter Type:" MT Desktop (only can be changed when vm power is shut off) *"Cable connected" box is checked

    System Settings: *"Network" box is checked in the "Boot Order:" listing.

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  3. Just wanted to let everybody know that I fixed the issue by uninstalling Virtualbox from the Software Centre, and by installing the copy I found on virtualbox.org website. Then I also set the adapter to AMD PCNet FAST III (Am79C973, the default)

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  4. Using Debian in my VM, i had to edit the /etc/network/interfaces to use the eth0 as the default loopback interface:

    ...
auto eth0
iface eth0 inet dhcp
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  5. Remove all virtualbox packages from system then install package from Virtualbox.org it's all because of missing /usr/lib/virtualbox/VBoxNetNAT binary , internet access in NAT network mode doesn't work. This is not a default option NAT.

    Normally it should run this file like: 

    /usr/lib/virtualbox/VBoxNetNAT --ip-address 10.0.2.1 --netmask 255.255.255.0 --network NatNetwork --trunk-type whatever

    But without this file, guest only get IP Address from DHCP server and it can't connect to Internet. Communication between guest works very well.

    After uninstalling all virtualbox packages and installing package (5.1.4-110228~Ubuntu~trusty) from VirtualBox.org , /usr/lib/virtualbox/VBoxNetNAT connect to Internet very well.

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