Hi guy, I write this page to introduce a new feature for Guest networks. Normally, VMs from guest networks can't reach each other. In VPC model, we can do this via Inter Vlan routing feature. So this proposal aim to do the same thing with Guest network model.
The idea is not too hard. ACS has already implemented such L3 services (sourceNat, staticNat, Port Forwarding,...), and I follow this design.