ungleich-graphviz/ipv6-naming-with-proxy.dot
2021-03-05 16:38:36 +01:00

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Text

digraph G {
node [ shape=box ]
# rankdir=LR;
label="Hostnames for IPv6 only hosts"
serverv6 [ label="Server (IPv6 only)" ];
proxy [ label="Proxy (IPv4+IPv6)" ];
http [ label="HTTP(s) for\nwww.example.com" ]
dns [ label="DNS for www.example.com" ]
dnsv6 [ label="v6.example.com" ]
dnsv6->serverv6 [ label="Only AAAA entry configured" ]
clientv4 [ label="IPv4 client" ];
clientv6 [ label="IPv6 client" ];
clientdual [ label="Dual Stack client" ];
dns->proxy [ label="A entry points to proxy" style=dashed ]
dns->serverv6 [ label="AAAA entry points to the server" style=dashed ]
{clientv4,clientv6,clientdual}->dns [ label="1. perform a DNS lookup" ]
clientdual->{proxy,serverv6} [ label="2. Accesses either way" style=dashed ]
clientv4->proxy [ label="2. Accesses server via proxy" ]
clientv6->serverv6 [ label="2. Accesses server directly" ]
proxy->serverv6 [ label="Forwards HTTP/HTTPS requests" ]
serverv6->http [ label="Serves content for" ]
{clientv6,clientdual}->serverv6 [ label="3. Access via\nv6.example.com\nAlways directly" ]
}