+ static struct GNUNET_TRANSPORT_WLAN_MacAddress all_zeros;
+
+ if ( (0 == memcmp (&taIeeeHeader->addr3, &all_zeros, MAC_ADDR_SIZE)) ||
+ (0 == memcmp (&taIeeeHeader->addr1, &all_zeros, MAC_ADDR_SIZE)) )
+ return 0; /* some drivers set no Macs, then assume it is all for us! */
+