ethernet data sending not working in Xilinx ML 402 board

Hi
i am using Xilinx ML 402 board having vertex 4 fpga.

Hard ware config.
UART,E MAC Lite , DDR RAM.

i written a simple code to send a frame and obsureving in Wire shark software. but no packets are coming.

My code is

#include "xemaclite.h"
#include "xemaclite_i.h"
#include "xemaclite_l.h"
#include "xbasic_types.h"

#include "xparameters.h"
#include "xuartlite.h"

int main()
{
print("stated main\n\b");

u8 b[]={0x00,0x13,0xd4,0x22,0x43,0x50};

u8 buf[]={0x00,0x13,0xd4,0x93,0x40,0x58,0x00,0x13,0xd4,0x22,0x43,0x50,0x80,0x00,0x31,0x32,0x34};

int status;

XEmacLite_Config *MacCfgPtr;
XEmacLite emacInst;


MacCfgPtr = XEmacLite_LookupConfig(XPAR_ETHERNET_MAC_DEVICE_ID);

XEmacLite_CfgInitialize(&emacInst,MacCfgPtr,XPAR_ETHERNET_MAC_BASEADDR);

XEmacLite_SetMacAddress(&emacInst,(u8 *)b);

status=XEmacLite_Initialize(&emacInst,XPAR_ETHERNET_MAC_DEVICE_ID);
if(status==XST_SUCCESS)
print("driver initialized\n\b");
if(status==XST_DEVICE_NOT_FOUND)
print("XST_DEVICE_NOT_FOUND\n\b");
if(status==XST_FAILURE)
print("XST_FAILURE\n\b");



status= XEmacLite_Send(&emacInst, (u8 *)buf,15 );
if(status=XST_SUCCESS)
{
print("data sended\n\b");
}
else
print("error\n\b");



XEmacLite_SendFrame(XPAR_ETHERNET_MAC_BASEADDR,(u8 *)buf,15);
status= XEmacLite_Send(&emacInst, (u8 *)buf,15 );
if(status=XST_SUCCESS)
{
print("data sended\n\b");
}
else
print("error sending frame\n\b");

return 0;
}


i am observing in wire shark for any transmission with my board mac address but no transmission is happening.