tcp client

i'm using arduino uno , w5100 ethernet shield. i'm trying connect ethernet shield software downloaded ( sockettest v3.00) communication between server (sockettest) , shield (client).the shield jack connected router. created server under ip address of laptop. uses telnet client example can't connect server on sockettest. first time i'm doing tcp/ip , had done similar project or guide me on this.

sockettest -http://sockettest.sourceforge.net/

uno -https://store.arduino.cc/arduino-uno-rev3

ethernet shield -http://www.hobbytronics.co.uk/arduino-wiznet-shield

here code
--------------------

code: [select]



#include <spi.h>
#include <ethernet.h>

byte mac[] = {
  0xde, 0xad, 0xbe, 0xef, 0xfe, 0xed
};
ipaddress ip(192, 168, 1, 220);// shield ip


ipaddress server(192, 168, 1, 37); // computer ip

ethernetclient client;

void setup() {
  // start ethernet connection:
  ethernet.begin(mac, ip);// open serial communications , wait port open:
 
  serial.begin(9600);
  while (!serial) {
    ; // wait serial port connect. needed native usb port only
  }


  // give ethernet shield second initialize:
  delay(1000);
  serial.println("connecting...");

  // if connection, report via serial:
  if (client.connect(server, 10002)) {
    serial.println("connected");
  } else {
    // if didn't connection server:
    serial.println("connection failed");
  }
}

void loop() {
  // if there incoming bytes available
  // server, read them , print them:
  if (client.available()) {
    char c = client.read();
    serial.print(c);
  }

  // long there bytes in serial queue,
  // read them , send them out socket if it's open:
  while (serial.available() > 0) {
    char inchar = serial.read();
    if (client.connected()) {
      client.print(inchar);
    }
  }

  // if server's disconnected, stop client:
  if (!client.connected()) {
    serial.println();
    serial.println("disconnecting.");
    client.stop();
    // nothing:
    while (true);
  }
}

i've never used particular piece of software, why trying connect port 10002?
can verify computer listening on port?

pieter

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