Using Push Setup with Arduino (ESP32) and DLMS director

Hi Mikko,

I am trying to get the push setup working for the Arduino server example on the ESP-32. I was able to connect the server to DLMS director over TCP/IP connection on a local WiFi network. I did this by using the following code in loop to handle client connection after connecting to WiFi and getting the assigned local IP in setup():
void loop() {
static unsigned char tmp[50];
uint32_t start = time_current();
int available;
//Execute invokes when needed.
if (executeTime <= start)
{
Server.run(start, &executeTime);
}

WiFiClient client = server.available(); // Listen for incoming clients

if (client)
{
GXTRACE("New Client.", NULL);
unsigned long currentTime = millis();
unsigned long previousTime = currentTime;
while (client.connected() && currentTime - previousTime <= timeoutTime)
{
available = client.available();
if (available > 0)
{
if (available > sizeof(tmp))
{
available = sizeof(tmp);
}

available = client.readBytes(tmp, available);
GXTRACE_INT("Bytes read = ", available);
if ((available = Server.handleRequest(tmp, available, &reply)) != 0)
{
GXTRACE_INT(PSTR("handleRequest failed:"), available);
bb_clear(&reply);
}
if (reply.size != 0)
{
//Send reply.
GXTRACE("Sending reply to client.", NULL);
client.write(reply.data, reply.size);
client.flush();
bb_clear(&reply);
}
}
}

// Close the connection
client.stop();
GXTRACE("Client disconnected.", NULL);
}
}

I am able to read/write data from/to the meter. But now I need to send push notifications from the meter to the DLMS director over the TCP/IP connection. In the DLMS Director I can see the default setting for push setup->send destination->Service is Hdlc. If I try to change this to Tcp I can not enter anything in the Destination field. Please let me know what do I need to do in the code and the DLMS Director settings to get the push working.

Regards
Sidharth