IPAddress Class

The IPAddress class contains methods to access the local IP address, gateway IP address and subnet mask.

IPAddress.localIP()

Description

Gets the WiFi shield's IP address

Syntax

IPAddress.localIP();

Parameters

none

Returns

the IP address of the shield

Example

#include <WiFi.h>

char ssid[] = "yourNetwork";      //SSID of your network

int status = WL_IDLE_STATUS;     // the Wifi radio's status

IPAddress ip;                    // the IP address of your shield

void setup()
{
 // initialize serial:
 Serial.begin(9600);

 WiFi.begin(ssid);

  if ( status != WL_CONNECTED) {
    Serial.println("Couldn't get a wifi connection");
    while(true);
  }
  // if you are connected, print out info about the connection:
  else {
 //print the local IP address
  ip = WiFi.localIP();
  Serial.println(ip);

  }
}

void loop () {}

IPAddress.subnetMask()

Description

Gets the WiFi shield's subnet mask

Syntax

IPAddress.subnet();

Parameters

none

Returns

the subnet mask of the shield

Example

#include <WiFi.h>
int status = WL_IDLE_STATUS;     // the Wifi radio's status

//SSID of your network
char ssid[] = "yourNetwork";
//password of your WPA Network
char pass[] = "secretPassword";

IPAddress ip;
IPAddress subnet;
IPAddress gateway;

void setup()
{
  WiFi.begin(ssid, pass);

  if ( status != WL_CONNECTED) {
    Serial.println("Couldn't get a wifi connection");
    while(true);
  }
  // if you are connected, print out info about the connection:
  else {

    // print your subnet mask:
    subnet = WiFi.subnetMask();
    Serial.print("NETMASK: ");
    Serial.println(subnet);

  }
}

void loop () {
}
 

IPAddress.gatewayIP()

Description

Gets the WiFi shield's gateway IP address.

Syntax

IPAddress.gatewayIP();

Parameters

none

Returns

An array containing the shield's gateway IP address

Example

#include <SPI.h>
#include <WiFi.h>

int status = WL_IDLE_STATUS;     // the Wifi radio's status

//SSID of your network
char ssid[] = "yourNetwork";
//password of your WPA Network
char pass[] = "secretPassword";

IPAddress gateway;

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

 WiFi.begin(ssid, pass);

  if ( status != WL_CONNECTED) {
    Serial.println("Couldn't get a wifi connection");
    while(true);
  }
  // if you are connected, print out info about the connection:
  else {

  // print your gateway address:
  gateway = WiFi.gatewayIP();
  Serial.print("GATEWAY: ");
  Serial.println(gateway);

  }
}

void loop () {}