UDP Issues

Greetings All,

I am using the RL_ARM TCP net library in order to establish a connection with the LPC2468.

I have the following code to initialize the UDP connection:

        static U8 retval = 0xFF;

        udp_soc = udp_get_socket (0, UDP_OPT_SEND_CS | UDP_OPT_CHK_CS, udp_callback);

        if ( udp_soc !=  0 )
        {
                retval = udp_open(udp_soc,0);
        }

The implementation of the udp_callback function is:

        delayMs(500);

        Buffer = udp_get_buf (count);

        memcpy(Buffer, ptr,count);

        retval = udp_send (udp_soc, _remip, _remport, Buffer, count);

   return (0);

_remip is the port that is autoselected, and _remip is the ipaddress passed to the function.

The udp test program that I have is ServerTalk, and allows me to connect to an ip adress and not specify a port, however, any data I attempt to send to the UDP connection is never recieved in my code.

I have switched things around, where I specify a port in the code, and it works better, but really want to not have to do that.

Has anyone ever run into similar issues, or am I doing something fundamentally wrong?

Any help is appreciated.

Thanks,