diff -Naur orig/contrib/ports/unix/proj/minimal/main.c patched/contrib/ports/unix/proj/minimal/main.c
--- orig/contrib/ports/unix/proj/minimal/main.c	2008-01-02 14:57:21.000000000 +0100
+++ patched/contrib/ports/unix/proj/minimal/main.c	2009-04-17 23:56:20.000000000 +0200
@@ -179,7 +179,7 @@
 
   printf("TCP/IP initialized.\n");
   
-  netif_add(&netif, &ipaddr, &netmask, &gw, NULL, mintapif_init, ip_input);  
+  netif_add(&netif, &ipaddr, &netmask, &gw, NULL, mintapif_init, ethernet_input);  
   netif_set_default(&netif);
   netif_set_up(&netif);
 
diff -Naur orig/contrib/ports/unix/proj/minimal/mintapif.c patched/contrib/ports/unix/proj/minimal/mintapif.c
--- orig/contrib/ports/unix/proj/minimal/mintapif.c	2007-12-19 21:26:53.000000000 +0100
+++ patched/contrib/ports/unix/proj/minimal/mintapif.c	2009-04-17 23:58:30.000000000 +0200
@@ -242,41 +242,16 @@
 static void
 mintapif_input(struct netif *netif)
 {
-  struct mintapif *mintapif;
-  struct eth_hdr *ethhdr;
   struct pbuf *p;
 
-
-  mintapif = netif->state;
-  
   p = low_level_input(netif);
-
   if (p != NULL) {
 
 #if LINK_STATS
     lwip_stats.link.recv++;
 #endif /* LINK_STATS */
 
-    ethhdr = p->payload;
-
-    switch (htons(ethhdr->type)) {
-    case ETHTYPE_IP:
-#if 0
-/* CSi disabled ARP table update on ingress IP packets.
-   This seems to work but needs thorough testing. */
-      etharp_ip_input(netif, p);
-#endif
-      pbuf_header(p, -14);
-      netif->input(p, netif);
-      break;
-    case ETHTYPE_ARP:
-      etharp_arp_input(netif, mintapif->ethaddr, p);
-      break;
-    default:
-      LWIP_ASSERT("p != NULL", p != NULL);
-      pbuf_free(p);
-      break;
-    }
+    netif->input(p, netif);
   }
 }
 /*-----------------------------------------------------------------------------------*/