[vbox-dev] [PATCH] UDPTunnel : new network interface backend to allow using this to link to GNS3 and QEMU instances over the network

Alexey Eromenko al4321 at gmail.com
Sun May 15 21:11:30 GMT 2011

> 00:00:01.515 DrvUDPConstruct : Attempting to parse network
> sport=4444;dest=;dport=4445

It looks correct.

> 00:00:01.515 VMSetError:
> /usr/ports/emulators/virtualbox-ose/work/VirtualBox-4.1.0_OSE/src/VBox/Devices/Network/DrvUDPTunnel.cpp(598)
> int drvUDPConstruct(PDMDRVINS*, CFGMNODE*, uint32_t);
> 00:00:01.515 VMSetError: Failed to bind the server socket

Since it works on Linux (Debian 6.0 "Squeeze"), what could be different ?
UDP socket library ?

I recommend you this:
Do you have Linux host ? (Multi-boot maybe?)
On your FreeBSD host, Install Linux VM and inside that VM try to
compile and use VirtualBox 4.1 with UDP Tunnels. (aka "Nested
Virtualization", layer 2). This works for me.
I use: Windows 7 host as layer 1 VBox 4.0.6, and Debian 6.0 x64 host
as layer 2 VBox 4.1.0-Alpha, and Windows XP as guests at layer3.
Layer 3 guests are always 32-bit (VirtualBox cannot nest VT-x features).

-Alexey Eromenko "Technologov"

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