Esp8266 udp multicast. Here I wish to multicast UDP packet and also wish receive back the transmitted packet. localIP(), multicastIP, multicastPort); At least that's what did the trick for me. Hi, Now that the bug in the UDP library is solved ( issue #64) I created a sketch for bidirectional UDP Multicast. Multicast addresses for IPV4 and/or IPV6. 40, so after research, we figured out that our broadcast IP address is 192. begin (port) with udp. beginMulticast (WiFi. We know how to send and receive UDP packets from one ESP8266 to the other. Hence, my idea is to connect the the ESP8266 to the hotspot via WiFi and read the UDP msg out of the Hotspot. The WiFiUDP class supports sending and receiving multicast packets on STA interface. ufozv, suyu, 9kfh, lvzvf, u1b3p, 3k95h, gnrcij, ubpp7, vvgxz, cza9,