My background in web pages to interact with the udp server, I sent to the server after a udp message opened a udp socket to receive the response from the server, caught the discovery service sent a reply to the udp packet, but port inaccessible, my program not receive data; I use udp test tool to copy the reply message from the server, and send my application port, my program can receive at this time, how to solve this problem

CodePudding user response:

Port inaccessible can't change to be