mDNS SD on esp8266

Posted on Sun 11th, March 2018

• #1

aluedeke

i am trying to receive dns sd broadcast messages on my esp8266 using the following code:

var wifi = require("Wifi");

wifi.connect("awifi", {password:"apwd"}, function(err){
    console.log(err);
    const dgram = require('dgram');
    const srv = dgram.createSocket('udp4');
    srv.addMembership('224.0.0.251');
    srv.bind(5353, '0.0.0.0', bound => {
        console.log('bound');
        function onDatagram(msg, info) {
            console.log('memory');
        }

        bound.on('message', onDatagram);
        bound.on('close', function(err) {
          console.log('s:close', err);
        });
    });
});

wifi.stopAP();

unfortunately i get only the following warning:

WARNING: Recv 869 too long (UDP)!

any ideas how to overcome this? I assume its a problem about max datagram message size?

Post a reply
- Bold
- Italics
- Link
- Image
- List
- Quote
- code
- Preview
Formatting Help

Don't worry about formatting, just type in the text and we'll take care of making sense of it. We will auto-convert links, and if you put asterisks around words we will make them bold.

Tips:

Create headers by underlining text with ==== or ----

To *italicise* text put one asterisk each side of the word

To **bold** text put two asterisks each side of the word

Embed images by entering:
![](https://www.google.co.uk/images/srpr/logo4w.png)
That's the hard one: exclamation, square brackets and then the URL to the image in brackets.

* Create lists by starting lines with asterisks

1. Create numbered lists by starting lines with a number and a dot

> Quote text by starting lines with >

Mention another user by @username

For syntax highlighting, surround the code block with three backticks:

```
Your code goes here
```
Just like Github, a blank line must precede a code block.

If you upload more than 5 files we will display all attachments as thumbnails.

For a full reference visit the Markdown syntax.

mDNS SD on esp8266

About

mDNS SD on esp8266

Actions

mDNS SD on esp8266

Formatting Help

About

mDNS SD on esp8266

Actions

Espruino