Create a tunnel script to connect different device on the kaco installation

csharp/App/KacoCommunication/tunnelSalimax.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+host="ie-entwicklung@$1"
+
+tunnel() {
+  name=$1
+  ip=$2
+  rPort=$3
+  lPort=$4
+
+  echo -n "$name @ $ip    mapped to    localhost:$lPort  "
+  ssh -nNTL "$lPort:$ip:$rPort" "$host" 2> /dev/null &
+
+  until nc -vz 127.0.0.1 $lPort 2> /dev/null
+  do
+    echo -n .
+    sleep 0.5
+  done
+
+  echo "ok"
+}
+
+echo ""
+
+tunnel "Trumpf DCDC (http)      " 10.0.2.1 80 8002
+tunnel "Kaco Inverter (http)    " 10.0.3.1 80 8003
+tunnel "Int Emu Meter (http)    " 10.0.4.2 80 8004
+
+echo
+echo "press any key to close the tunnels ..."
+read -r -n 1 -s
+kill $(jobs -p)
+echo "done"
+