What is correct MAC address

Projects Networking, Protocols, and Devices
1

Hello,

when I run an example code from the WiFi library that gives the MAC address oft he WiFi shield, I get a result that is completely different than the one printed on the sticker on the Arduino Wifi shield.

What is the correct address?

2

Depends ?

Again WHICH SKETCH ?

Care to post it so people can see what you are seeing ?
Oh and a reminder to use code tags to do so ( </> )

3 
/*

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

Circuit:
* WiFi shield attached

created 13 July 2010
by dlf (Metodo2 srl)
modified 31 May 2012
by Tom Igoe
*/
#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 for the presence of the shield:
 if (WiFi.status() == WL_NO_SHIELD) {
   Serial.println("WiFi shield not present"); 
   // don't continue:
   while(true);
 } 
 
// 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);
}
4

Hi all,

thank you - I managed to see the correct MAC address from the router admin SW. It is the one the sample code shows. I still don't understand why the Mac address on the sticker is different...

Anyhow, its not important.