App Request UDP Only, "Netstat -an" Displays TCP and UDP

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This article was previously published under Q194171

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SYMPTOMS

Winsock applications can specify what UDP ports they listen on. You can use the NETSTAT utility with the -an option to display the status of a socket. However, NETSTAT -an may display both UDP and TCP listening on the same socket when only UDP is bound to the socket.

   NETSTAT [-a] [-n]

    -a  Displays all connections and listening ports. Server-side
        connections are normally not shown.

    -n  Displays addresses and port numbers in numerical form.

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