ESP32 Forum

I have a question about UDP multicast.
Execute AT + CIPSTART = "UDP", "192.168.0.2", 0, 12345, 2 and OK will be displayed on the serial monitor. When I send UDP packets with PacketSender, + IPD, 5, hello is displayed.
When AT + CIPSTART = "UDP", "239.192.1.2", 0, 12345, 2 is executed, the serial monitor displays OK, and it is considered that the socket was correctly created. However, the PacketSender does not display + IPD when sending UDP packets to a multicast address.
Does AT firmware not support multicast?
Also, I don't want to use AT + MDNS.

I use google translation.
Thank you.

It seems that ESP32 AT does not support multicast for now, maybe it should be added in the future.

Please try it again using the attachment

Thanks Helen L and xcguang.
I understand that ESP-AT does not support multicast.
Using the given bin file, the AT + CIPSTART command definitely received the multicast.

Hi akarg96,
thanks for your feedback, we will sync at GitHub ASAP, if you have any question about esp-at, you can report it at https://github.com/espressif/esp-at/issues