digraph G { node [ shape=box ] label="IPv4 via IPv6 (NAT64/SIIT) by ungleich.ch pu" v4island [ label="IPv4 only network\n192.0.2.0/24" ] nat64 [ label="NAT64 translator" ] v6internet [ label="IPv6 Internet\n::/0" ] v6internet->v4island [ label="Allow access\nfrom the IPv6 Internet" style=dashed ] v6internet->nat64 [ label="Connects to\n2001:db8:cafe::/120" ] nat64->v4island [ label="Translates 2001:db8:cafe::/120 to\n192.0.2.0/24\nSquashes ::/0 to 192.0.2.1" ] }