I have been able to make a working environment with Genode/NOVA/VirtualBox a single VM running TinyCore with networking enabled and can communicate across the network. So far, only on VirtualBox 4, 5 still has issues that I am still trying to work out that I will get into at a later time but my goal is multiple VMs with networking.
With VirtualBox 4, I have successfully made two VM environments and both VMs see eth0, I can assign an IP address to each but neither VM can communicate outside their own VM. Unlike with the single VM, I was unsuccessful to get an IP via DHCP (hence why I used a static IP), they could not ping the other VM, they could not ping anything on the network to which they were attached. Is there a setting in the test.vbox file different than for a single VM mode that I need to make to make the bridge work for this?