Only receive udp multicasts which I transmit

PeterR
Posts: 568
Joined: Mon Jun 04, 2018 2:47 pm

Only receive udp multicasts which I transmit

Postby PeterR » Wed Oct 14, 2020 4:14 pm

Using: /examples/protocols/sockets/udp_multicast

Configured the example to listen for a multicast which I know is transmitted by other devices on my network.
The example does not display the other device's multicast but happily displays its own broadcast (made when RX times out).

Code: Select all

I (386506) multicast: Sending to IPV4 multicast address 239.2.1.1:2054...
I (386506) multicast: received 28 bytes from 192.168.0.48:
I (386506) multicast: Multicast #37 sent by ESP32
Has anyone used this example and/or listened for a multicast?
& I also believe that IDF CAN should be fixed.

PeterR
Posts: 568
Joined: Mon Jun 04, 2018 2:47 pm

Re: Only receive udp multicasts which I transmit

Postby PeterR » Thu Oct 15, 2020 10:45 am

The good old 'switch it (the switch) off and on again'!
& I also believe that IDF CAN should be fixed.

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