Ticket #7094 (new defect)
VirtualBox kills network connectivity if VLAN tagging enabled on Realtek NIC
|Reported by:||viro||Owned by:|
If VLAN tagging is enabled on the Realtek network card of a system with VirtualBox installed, and the "VirtualBox Bridged Network Driver" is bound to that network card (the default behavior), no network access is possible. The only remedy is to either disable VLAN tagging or unbind the "VirtualBox Bridged Network Driver" and reboot the system. The former is no remedy, because we use VLAN tagging (to the desktop) in our environment. The latter remedy obviously means no network access for VirtualBox. It would be nice if this issue could be fixed, as Microsoft HyperV does not suffer from this problem, and I'd much rather use VirtualBox.
Steps to reproduce: 1. Install the appropriate full Realtek NIC driver from http://www.realtek.com /downloads/downloadsView.aspx?Langid=1&PNid=13&PFid=5&Level=5&Conn=4&DownTypeID=3&GetDown=false 2. Install VirtualBox on a system with a "Realtek PCIe GBE Family Controller" 3. Open the Network Connection Control Panel 4. Right-click "local Area Connection" and choose "Properties" 5. Click Configure 6. Click Advanced 7. Under the "Propery:" list, select "Priority & VLAN" then, under the "Value:" list, select "Priority & VLAN Enabled" 8. Click Start --> All Programs --> Realtek --> Diagnostic Utility --> Realtek Ethernet Diagnostic Utility 9. Select "Realtek PCIe GBE Family Controller" from the list on the left 10 Click "VLAN" (from the middle column) 11. Click "Add" and enter a VLAN ID (for a VLAN that actually exists on your network) and press <ENTER> 12. Confirm adding of the VLAN and close the Realtek utility 13. Check to see if you still have network connectivity. If you do, reboot. 14. You should not longer have network connectivity. 15. Open "local Area Connection Properties" 16. Uncheck "VirtualBox Bridged Network Driver" and click "OK". Reboot 17. Now you should have network connectivity. This problem is happening on a system with the following characteristics; - Windows 7 64-bit - Realtek Realtek PCIe Gigabit Etherenet NIC - Virtual Box 3.2.x