Public Ip of my eth shield

Projects Networking, Protocols, and Devices
14

I use a cose of a another post:
http://arduino.cc/forum/index.php/topic,95456.0.html

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

byte mac[] = { 0x90, 0xA2, 0xDA, 0x00, 0x04, 0x16 };
char noipServer[] = "https://dynupdate.no-ip.com";

EthernetClient client;

void setup() {
  Serial.begin(9600);
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // no point in carrying on, so do nothing forevermore:
    while(true);
  }
 
  //Give time to initilize:
  delay(2000);
 
  if(client.connect(noipServer, 80)){
    Serial.println("Connected to noip");
   
    client.println("GET /nic/update?hostname=johndoe.no-ip.org HTTP/1.0");
    client.println("Host: dynupdate.no-ip.com");
    client.println("Authorization: john.doe@gmail.com:mypassword");
    client.println("User-Agent: Johns Arduino Client/0.0 john.doe@gmail.com");
    client.println();
   
//Wait for response

   while(client.connected())
   {    
      // stay in this loop until the server closes the connection

       while(client.available())
       {
         // The server will not close the connection until it has sent the last packet
         // and this buffer is empty

         char read_char = client.read(); 
         Serial.write(read_char);
       }
   }
   // close your end after the server closes its end
   client.stop();   


    
    
  }
}

void loop() {

}

Thanks to all