digraph G {
    size="10!";
    rankdir="LR";


    node [ shape="box"];

    v4host1 [ label="IPv4 only host" color="yellow" ];
    v6host2 [ label="IPv6 only host" color="blue" ];

    v6host1 [ label="IPv6 only host" color="blue" ];
    v4internet [ label="The whole IPv4 Internet" color="yellow" ];



    v6host1->v4internet [ label="2001:db8:cafe::/96" ];
    v4host1->v6host2 [ label="TCP:192.0.1.1:2342" ];
}