How can I read ICMP errors from connected UDP sockets?

Submitted by: Administrator
If the target machine discards the message because there is no process reading on the requested port number, it sends an ICMP message to your machine which will cause the next system call on the socket to return ECONNREFUSED. Since delivery of ICMP messages is not guarenteed you may not recieve this notification on the first transaction.
Submitted by: Administrator

Read Online Unix Socket Programming Job Interview Questions And Answers