[lwip-users] what this error is for????

[Kiran Bacchewar]

hi all,

 

AM using the lwip1.3 in my project.... when i receive the frame from the network interface... the error pops up at belows line..

 

void etharp_ip_input(struct netif *netif, struct pbuf *p)
{
  struct ethip_hdr *hdr;

LWIP_ERROR("netif != NULL", (netif != NULL), return;);

 /* Only insert an entry if the source IP address of the
     incoming IP packet comes from a host on the local network. */
  hdr = p->payload;
  /* source is not on the local network? */
  if (!ip_addr_netcmp(&(hdr->ip.src), &(netif->ip_addr), &(netif->netmask))) {
    /* do nothing */
    return;
  }

 

 

what this error is for?? my understanding is, when i initialize the netif struct, netif is not going to be NULL at any time... and in my project i have initialized the netif, even though this error occurs.....

 

and if i comment it out, the packet is forwarded to the ip layer without any problem....

 

thank you in advance.

--
Regards,
Kirankumar K B