Bridged networking to USB ethernet adaptor

frumbert · Post by **frumbert** » 7. Sep 2014, 06:03

I have a Win2k3 vm with Guest Additions installed. I have VirtualBox 4.3.10 r93012. I am unable to network in "Bridged" mode when connecting through a USB-connected ethernet device. I require bridged networking, not NAT or host only, etc.

The device details of the usb adaptor are as follows:

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USB 2.0 10/100M Ethernet Adaptor:

  Product ID:	0x9700
  Vendor ID:	0x0fe6
  Version:	 1.01
  Speed:	Up to 12 Mb/sec
  Location ID:	0xfa132000 / 8
  Current Available (mA):	500
  Current Required (mA):	120
  BSD Name:	en5

In the VM, networking is connected:

adaptor is set to use the usb adaptor:

networking macos side is connected and working through this adaptor only with others disabled

Windows-side (in the vm) I can't get networking going properly. The machine is set to receive info from DHCP (fixed IP assigned by mac address, of course)

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C:\Documents and Settings\Administrator>ipconfig /release
Windows IP Configuration
Ethernet adapter Local Area Connection:
   Connection-specific DNS Suffix  . :
   IP Address. . . . . . . . . . . . : 0.0.0.0
   Subnet Mask . . . . . . . . . . . : 0.0.0.0
   Default Gateway . . . . . . . . . :
C:\Documents and Settings\Administrator>ipconfig /renew
Windows IP Configuration
An error occurred while renewing interface Local Area Connection : unable to con
tact your DHCP server. Request has timed out.
C:\Documents and Settings\Administrator>ipconfig
Windows IP Configuration
Ethernet adapter Local Area Connection:
   Connection-specific DNS Suffix  . :
   Autoconfiguration IP Address. . . : 192.168.0.107
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.0.1
C:\Documents and Settings\Administrator>ping 192.168.0.1
Pinging 192.168.0.1 with 32 bytes of data:
Request timed out.

Strangely enough, the release / renew shows the correct IP address, however I can't even ping the gateway address.

If I enable wifi on the mac and connect to the same LAN, then change the network adaptor on the VM to bridge to the wifi adaptor:

then the networking on the VM works again (without re-binding anything - I can just ping again). In the log below it first times out (via USB adaptor), then it starts working (via Wifi)

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C:\Documents and Settings\Administrator>ping 192.168.0.1
Pinging 192.168.0.1 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.1:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Documents and Settings\Administrator>ping 192.168.0.1
Pinging 192.168.0.1 with 32 bytes of data:
Request timed out.
Reply from 192.168.0.1: bytes=32 time=52ms TTL=64
Reply from 192.168.0.1: bytes=32 time=3ms TTL=64
Reply from 192.168.0.1: bytes=32 time=4ms TTL=64
Ping statistics for 192.168.0.1:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 3ms, Maximum = 52ms, Average = 19ms
C:\Documents and Settings\Administrator>

I am unable to rely on either the wifi connection or thunderbolt-connected ethernet (port is used). The usb-ethernet is my current connection method.

/edit
I have now upgraded to VirtualBox 4.3.14 r95030 and also downloaded and updated the additions, and reapplied them to the virtual machine and rebooted it. I can confirm that this has had no effect on the problem.