I have 4 pc´s and another pc, call it proxy, all being in the same network: 172.16.96.0/20 . I can ping between each other. But, I want to separate them into 2. That is: pc1 is directly connected to pc2 pc3 is directly connected to pc4 But, all traffic from pc1 or pc2 to pc3 or pc4 has to go