Goodday, I am working on an implementation of lwip netconn api in combination with FreeRTOS. I want to use lwip to receive UDP packets from a mullticast adress. 239.0.0.0 in this case.
The system running lwip is assigned a static ip adress, being 192.169.123.109. When sending UDP packets to 192.169.123.109 directly I can process them and echo them back. However, I need to be able to read UDP packets send to the multicast ip adress 239.0.0.0. To accomplish this I use the following task: So, I bind to IP_ADDR_ANY using port 60004 (this is the port that the multicast address receives UDP packets on) and I use the function netconn_join_leave_group() to subribe to the multicast address. I do not get any error returns but I do not receive any UDP packets send to 293.0.0.0. I have been trying for a long time to get this to work but feel like I am missing something fundamental. Is there a way to accomplish what I need? Help is very much appriciated! Greetings, Maarten -- Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
