ESP8266 running mDNS responds to name.hub not name.local
Posted: Sat May 04, 2019 9:45 pmI have an ESP8266 which I am loading up with this code from the Arduino 1.8 (IDE is on Windows)
==================================================
#include "ESP8266WiFi.h"
#include "ESP8266WebServer.h"
#include "ESP8266mDNS.h"
ESP8266WebServer server(80);
void setup() {
Serial.begin(115200);
WiFi.hostname("solarmeter");
WiFi.begin("Callisto", "LiBai701"); //Connect to the WiFi network
while (WiFi.status() != WL_CONNECTED) { //Wait for connection
delay(200);
Serial.println("Waiting to connect…");
}
Serial.println("");
Serial.println(F("[CONNECTED]"));
Serial.print("[IP ");
Serial.print(WiFi.localIP());
Serial.println("]");
if (MDNS.begin("solarmeter",WiFi.localIP())) { //Start mDNS
Serial.println("MDNS started for solarmeter");
MDNS.addService("http","tcp",80);
}
server.on("/other", []() { //Define the handling function for the path
server.send(200, "text / plain", "Other URL");
});
server.on("/", handleRootPath); //Associate the handler function to the path
server.begin(); //Start the server
Serial.println("Server listening..");
}
void loop() {
server.handleClient(); //Handling of incoming requests
}
void handleRootPath() { //Handler for the root path
server.send(200, "text/plain", "Hello world");
}
=============================================
When I run this and go to my Raspberry Pi I can
ping 192.168.1.140 and that works
ping solarmeter and that works, but it responds that its full name is solarmeter.hub
ping solarmeter.hub and that works.
ping solarmeter.local and that DOES NOT WORK
why is that?
It leads me to question, where exactly does the .local come from. What is it about the mDNS include at the top that would make it respond to .local anyway. I have not actually specified any .hub TLD anywhere ever in this project, so I cant see why the ESP8266 responds with .hub.
Any help in explaining this much appreciated. I dont really want to go forward on my IoT project referring to the device as solarmeter.hub when I dont know where that comes from.
==================================================
#include "ESP8266WiFi.h"
#include "ESP8266WebServer.h"
#include "ESP8266mDNS.h"
ESP8266WebServer server(80);
void setup() {
Serial.begin(115200);
WiFi.hostname("solarmeter");
WiFi.begin("Callisto", "LiBai701"); //Connect to the WiFi network
while (WiFi.status() != WL_CONNECTED) { //Wait for connection
delay(200);
Serial.println("Waiting to connect…");
}
Serial.println("");
Serial.println(F("[CONNECTED]"));
Serial.print("[IP ");
Serial.print(WiFi.localIP());
Serial.println("]");
if (MDNS.begin("solarmeter",WiFi.localIP())) { //Start mDNS
Serial.println("MDNS started for solarmeter");
MDNS.addService("http","tcp",80);
}
server.on("/other", []() { //Define the handling function for the path
server.send(200, "text / plain", "Other URL");
});
server.on("/", handleRootPath); //Associate the handler function to the path
server.begin(); //Start the server
Serial.println("Server listening..");
}
void loop() {
server.handleClient(); //Handling of incoming requests
}
void handleRootPath() { //Handler for the root path
server.send(200, "text/plain", "Hello world");
}
=============================================
When I run this and go to my Raspberry Pi I can
ping 192.168.1.140 and that works
ping solarmeter and that works, but it responds that its full name is solarmeter.hub
ping solarmeter.hub and that works.
ping solarmeter.local and that DOES NOT WORK
why is that?
It leads me to question, where exactly does the .local come from. What is it about the mDNS include at the top that would make it respond to .local anyway. I have not actually specified any .hub TLD anywhere ever in this project, so I cant see why the ESP8266 responds with .hub.
Any help in explaining this much appreciated. I dont really want to go forward on my IoT project referring to the device as solarmeter.hub when I dont know where that comes from.