I manually add the following iptables rule: iptables -t nat -A POSTROUTING -s 10.20.0.0/24 -j MASQUERADE
Guess this would be a more general approach instead: iptables -t nat -A POSTROUTING -i vboxnet0 -j MASQUERADE
Then each node deployed in vbox uses Fuel master node as gateway. You will need to ipv4 forwarding enabled also.
I manually add the following iptables rule: iptables -t nat -A POSTROUTING -s 10.20.0.0/24 -j MASQUERADE
Guess this would be a more general approach instead: iptables -t nat -A POSTROUTING -i vboxnet0 -j MASQUERADE
Then each node deployed in vbox uses Fuel master node as gateway. You will need to ipv4 forwarding enabled also.