Both netstat's show 0 for everything.

Here's the code from my convertor's rx_up method

int rx_up(....)
   printf("foo_rx_up\n");

	struct foo_ctl *pctrl = func_hdl;

	if (npkt->flags & _NPKT_MSG) 
      {
		int ret = foo_message(pctrl, npkt, cell, endpoint, iface);
		return ret;
	}

   net_iov_t   *iov;
   net_buf_t   *buf;
   int i;
   uint8_t dst[1024] = {0};
   uint8_t* pTmp = (uint8_t*)dst;
   int data_len = 0;
   for (buf = TAILQ_FIRST(& npkt->buffers); buf != NULL; buf = TAILQ_NEXT(buf, ptrs)) 
   {
      for (i = 0, iov = buf->net_iov; i < buf->niov; i++, iov++) 
      {
         memcpy(pTmp, iov->iov_base, iov->iov_len);
         pTmp += iov->iov_len;
         data_len += iov->iov_len;
      }
   }

   printf("size of packet = %d\n", data_len);
   for (i = 0; i < data_len; i++)
   {
      printf("%02x ", dst[i]);
   }
   printf("\n");

  if(pctrl->npi->tx_up_start(pctrl->reg_hdl, npkt, 0, 0, pctrl->cell, pctrl->endpoint, 0, 0) != 0) 
   {
      printf("failed %d\n", errno);
      pctrl->npi->tx_done(pctrl->reg_hdl, npkt);
   }
   else
   {
      printf("success\n");
   }
   return 0;
}

//////////////////////////////////////////////
Here's the output from the printf's
/////////////////////////////////////////////
foo_rx_up

size of packet = 84

45 00 00 54 00 1a 00 00 ff 01 3a 3b c0 a8 00 02 c0 a8 00 01 08 00 07 25 e0 30 00 00 4f 00 00 00 0d 00 a6 06 00 08 09 0a 
0b 0c 0d 0e 0f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 
33 34 35 36

FooDriver::TxDone

success
/////////////////////////////////////////////////////
End output
/////////////////////////////////////////////////////
The packet data listed above is a valid ICMP echo request from my other device as far as I can tell - and it's what the 
other device outputs when I display the data from my driver on that one. 

Is it possible that i am filling in something incorrectly in the npkt_t structure in my driver? I took the makepacket 
code directly out of your online docs, so I don't know why that would be incorrect, but I am at a loss as to why 
tx_up_start is returning success in this case if the data is not getting to the stack.

Thanks again for any help you can provide me with.