#include <SPI.h>
    #include <Ethernet.h>

    // network configuration. dns server, gateway and subnet are optional.

     // the media access control (ethernet hardware) address for the shield:
    byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

    // the dns server ip
    IPAddress dnServer(192, 168, 0, 1);
    // the router's gateway address:
    IPAddress gateway(192, 168, 0, 1);
    // the subnet:
    IPAddress subnet(255, 255, 255, 0);

    //the IP address is dependent on your network
    IPAddress ip(192, 168, 0, 2);

    void setup() {
      Serial.begin(9600);

      // initialize the ethernet device
      Ethernet.begin(mac, ip, dnServer, gateway, subnet);
      //print out the IP address
      Serial.print("IP = ");
      Serial.println(Ethernet.localIP());
    }

    void loop() {
    }