digraph D {

  viwib [shape=diamond]
  mikrotik  [shape=record]
  kraftwerk [shape=circle]

  viwib -> mikrotik [style=dashed, color=grey]
  viwib -> mikrotik [color="black:invis:black"]
  mikrotik -> kraftwerk [penwidth=5, arrowhead=none]

}

digraph G {
 viwib -> mikrotik [ label="WAN to eth1 wan-network=2a0a:e5c0:1:d:2::10/64 gw6=2a0a:e5c0:1:d::7"];
 viwib -> mikrotik [ label="LAN to eth2 lan-network=2a0a:e5c0:29:cafe::1/64 & router-advertisement"];
 mikrotik ->kraftwerk [ label="sfp-uplink 2a0a:e5c0:1:3::7" ];
}