Help with Sending/ Receiving UDP packets - C Sockets

Question

Ok, if you look at some of my previous questions, I\'ve been working on getting a simple connection up and running with C sockets (I\'m still fairly new to the whole network

Answer 1

In the listener, I think you need to set

listeningMc_req.imr_interface.s_addr = htonl(INADDR_ANY);

... since that is also the interface on which you bind the socket. Depending on whether you run everything on a single host, you might need to consider the loopback interface and binding to INADDR_ANY will do that.