Arduino Function: WiFiLink.gatewayIP

Description

This function returns the gateway IP address.

Syntax

WiFi.gatewayIP();

Returns

 An array containing the gateway IP address

Examples

/*

This example connects to an unencrypted Wifi network.
Then it prints the MAC address of the board,
the IP address obtained, and other network details.

Circuit:
* Arduino Primo or STAR OTTO or Uno WiFi Developer Edition (with WiFi Link firmware running)

created 13 July 2010
by dlf (Metodo2 srl)
modified 31 May 2012
by Tom Igoe
modified 10 March 2017
by Sergio Tomasello and Andrea Cannistrá
*/

#include <WiFi.h>

char ssid[] = "yourNetwork"; // the name of your network
int status = WL_IDLE_STATUS; // the Wifi radio's status

void setup() {
//Initialize serial and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}

//Check if communication with the wifi module has been established
if (WiFi.status() == WL_NO_WIFI_MODULE_COMM) {
Serial.println("Communication with WiFi module not established.");
while (true); // don't continue:
}

// attempt to connect to Wifi network:
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to open SSID: ");
Serial.println(ssid);
status = WiFi.begin(ssid);

// wait 10 seconds for connection:
delay(10000);
}

// you're connected now, so print out the data:
Serial.print("You're connected to the network");
printCurrentNet();
printWifiData();
}

void loop() {
// check the network connection once every 10 seconds:
delay(10000);
printCurrentNet();
}

void printWifiData() {
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
Serial.println(ip);

// print your MAC address:
byte mac[6];
WiFi.macAddress(mac);
Serial.print("MAC address: ");
Serial.print(mac[5], HEX);
Serial.print(":");
Serial.print(mac[4], HEX);
Serial.print(":");
Serial.print(mac[3], HEX);
Serial.print(":");
Serial.print(mac[2], HEX);
Serial.print(":");
Serial.print(mac[1], HEX);
Serial.print(":");
Serial.println(mac[0], HEX);

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

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

void printCurrentNet() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());

// print the MAC address of the router you're attached to:
byte bssid[6];
WiFi.BSSID(bssid);
Serial.print("BSSID: ");
Serial.print(bssid[5], HEX);
Serial.print(":");
Serial.print(bssid[4], HEX);
Serial.print(":");
Serial.print(bssid[3], HEX);
Serial.print(":");
Serial.print(bssid[2], HEX);
Serial.print(":");
Serial.print(bssid[1], HEX);
Serial.print(":");
Serial.println(bssid[0], HEX);

// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.println(rssi);

// print the encryption type:
byte encryption = WiFi.encryptionType();
Serial.print("Encryption Type:");
Serial.println(encryption, HEX);
}


Based on the reference originally written by Arduino Community,  wiring.org.co and  arduino.cc