Sending a UDP-message

Hi all,

this is my code. I am trying to send messages through UDP. But all it is sending are ARP's.

Could anyone tell me what's wrong?

I am going crazy overhere.... http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/unsure.gif

Cheers,

Danny

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/*

*

* This file is for testing stand-alone (NO_SYS) LWIP

* using a RAM-based simple file system

*

*/

# include "system.h"

# include "arch/init.h"# include "lwip/ip_addr.h"# include "lwip/tcpip.h"# include "lwip/netif.h"# include "netif/lan91c111if.h"

# include "httpd.h"# include "echo.h"

# include "sys/alt_alarm.h"

//#define get_milliseconds() alt_nticks()

/* ---------- IP oriented addresses for ethernet adapter ---------- */# define IPADDR0 169# define IPADDR1 254# define IPADDR2 0# define IPADDR3 2

# define NETMASK0 255# define NETMASK1 255# define NETMASK2 0# define NETMASK3 0

# define GWADDR0 0# define GWADDR1 0# define GWADDR2 0# define GWADDR3 0

int main(void)

{

//0.6.4 struct netif *netif;

struct netif netif;

struct ip_addr ipaddr, netmask, gw;

struct ip_addr udpDestIpAddr; //IP-address to send UDP packet to

struct pbuf* packetBuffer; //Pointer to a packet buffer

struct udp_pcb* udpSocket; //Create UDP-socket

char buffer[100];

// char *buffPtr;

alt_avalon_lan91c111_if* dev_list_ptr = (alt_avalon_lan91c111_if*)alt_ethernet_device_list.next;

printf("UDP-server using Light-weight IP (LWIP)\n\n");

// sprintf(buffer, "PWNED \n"); //MSG to send to vics0urce

// buffPtr = mem_malloc(sizeof(buffer));

// memcpy(buffPtr, buffer, sizeof(buffer)); //copy&#39;s from buffer to buffer

packetBuffer = pbuf_alloc(PBUF_TRANSPORT,666,PBUF_RAM);

pbuf_free(packetBuffer);

// packetBuffer -> payload = (void *)buffPtr;

//packetBuffer -> next = NULL;

// packetBuffer -> tot_len=1450;

// packetBuffer -> len=1450;

/*

* Initialize lwip

*/

lwip_init();

printf ("Setting IP address to: %d.%d.%d.%d\n", IPADDR0, IPADDR1, IPADDR2, IPADDR3);

printf ("Setting netmask to: %d.%d.%d.%d\n", NETMASK0, NETMASK1, NETMASK2, NETMASK3);

printf ("Setting gateway address to: %d.%d.%d.%d\n\n\n", GWADDR0, GWADDR1, GWADDR2, GWADDR3);

IP4_ADDR(&ipaddr, IPADDR0, IPADDR1, IPADDR2, IPADDR3);

IP4_ADDR(&netmask, NETMASK0, NETMASK1, NETMASK2, NETMASK3);

IP4_ADDR(&gw, GWADDR0, GWADDR1, GWADDR2, GWADDR3);

//0.6.4 netif = netif_add(&ipaddr, &netmask, &gw,

netif_add(&netif, &ipaddr, &netmask, &gw,

(void*)dev_list_ptr,

lan91c111if_init,

ip_input);

//0.6.4 netif_set_default(&netif);

netif_set_default(&netif);

IP4_ADDR(&udpDestIpAddr, 169, 254, 0, 1);

udpSocket = udp_new();

udp_bind(udpSocket, IP_ADDR_ANY, 1024); //Bind socket to port

udp_connect(udpSocket, &udpDestIpAddr, 666); //Bind socket to any incoming IP-address

printf("Ready to send....\n");

while(1)

{

//0.6.4 lan91c111if_service(netif);

//udp_recv(udpSocket, &packetBuffer, (int *)sizeof(packetBuffer));

// pbuf2->payload = (void*)((UDP_CHECKSUM_BASE+4*11)|0x80000000);

udp_send(udpSocket, packetBuffer);

if(buffer != NULL)

{

printf("Pakket is verzonden\n");

// sprintf(udpSocket, "socket is \n");

}

}

lan91c111if_service(&netif);

}

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