How can I get "ICMP error back from my UDP message"
This may work as advertised on your OS ( Linux? ), but on Win2K returns recv: Unknown error. The above link explains why it works for some Linux implementations.

UDP is a connectionless protocol ( There is not TTL added to the message so ICMP is not guaranteed! ) If you want to see what makes up it message IP Message Formats
Cheers!
JamesNC

In reply to Re^2: udp recv question by JamesNC
in thread udp recv question by smackdab

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