EthernetIpAddress reference correction

The example code on the Ethernet IPAddress page has incorrect code. The “#include <SPI.h>” is missing and the Ethernet.begin() call is incorrect. If the reference provides an example, it should compile and run correctly.

It should look like this.

#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() {

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

void loop() {

edit: This was also emailed to

SurferTim: It should look like this. [...]


Thanks, MadBob! :)