1. How do I determine the port number if the kernal picked localport when creating a UDP socket with ActivePerl on Windows? Some things I've tried: 
        $sock_r = IO::Socket::INET->new(Proto     => "udp",
                                        Reuse     => '1', 
                                        TimeOut   => 10)
                 or die "can't connect socket $!";

        #$host_port = unpack_sockaddr_in($sock_r);
        #$host_port = sockaddr_in($sock_r->sockport);
        #$host_port = getsockname($sock_r->sockaddr);
        #($host_port, $host_ip) = unpack_sockaddr_in($sock_r->sockaddr
+, AF_INET);

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2. How do I send binary data thru a UDP socket? Seems the default is ASCII, and I'd like to use UDP socket to exchange SIP protocol messages (which are binary).

In reply to UDP socket questions by sbrandt

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