 // Enter a MAC address and IP address for your controller below.
 // The IP address will be dependent on your local network:
 byte mac[] = { 0xDE, 0xAD, 0xDE, 0xAD, 0xDE, 0xAD };
+byte site_mac[] = { 0xDE, 0xAD, 0xDE, 0xAD, 0xDE, 0xAD };
 
 // pins for the RGB LED:
 const int redPin = 3;

  Serial.print(" ");

  // site mac address
  for(int i = 0; i < sizeof(mac); i++) {
    Serial.print(lowByte(mac[i]), HEX);
    Serial.print(" ");
  }


  TCPBuffer[byteCount++] = lowByte(0x00);

  // site mac address
  for(int i = 0; i < sizeof(site_mac); i++) {
    TCPBuffer[byteCount++] = lowByte(site_mac[i]);
  }

  // reserved3
