I want to disable internet but not the network

How can I disable internet but keep the network access on Android tablet? I want to be disable internet access to all but selected apps, at the same time I want applications to have direct internal network access. I used firewall in the past but firewall disables access to all networks. I want to be able to use my tablet in my home, at the same time I want to disable internet access on it. Is it possible? What is the best way to do create this kind of limitation for the apps? thanks