diff --git a/apps/ping6/ping6.c b/apps/ping6/ping6.c
index 7219bfc81..4fdc16ab5 100644
--- a/apps/ping6/ping6.c
+++ b/apps/ping6/ping6.c
@@ -36,7 +36,7 @@
 #include <string.h>
 #include <stdio.h>
 
-#define MACDEBUG 1
+#define MACDEBUG 0 
 
 #define DEBUG 0
 #if DEBUG
diff --git a/cpu/native/net/tapdev6.c b/cpu/native/net/tapdev6.c
index c922472d8..1409b7ed5 100644
--- a/cpu/native/net/tapdev6.c
+++ b/cpu/native/net/tapdev6.c
@@ -31,7 +31,7 @@
  *
  * Author: Adam Dunkels <adam@sics.se>
  *
- * $Id: tapdev6.c,v 1.1 2008/10/14 09:47:15 julienabeille Exp $
+ * $Id: tapdev6.c,v 1.2 2008/10/14 14:54:23 julienabeille Exp $
  */
 
 
@@ -74,7 +74,7 @@ static unsigned long lasttime;
 #define BUF ((struct uip_eth_hdr *)&uip_buf[0])
 #define IPBUF ((struct uip_tcpip_hdr *)&uip_buf[UIP_LLH_LEN])
 
-#define DEBUG 0
+#define DEBUG 1
 #if DEBUG
 #define PRINTF(...) printf(__VA_ARGS__)
 #define PRINT6ADDR(addr) PRINTF("%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x", ((u8_t *)addr)[0], ((u8_t *)addr)[1], ((u8_t *)addr)[2], ((u8_t *)addr)[3], ((u8_t *)addr)[4], ((u8_t *)addr)[5], ((u8_t *)addr)[6], ((u8_t *)addr)[7], ((u8_t *)addr)[8], ((u8_t *)addr)[9], ((u8_t *)addr)[10], ((u8_t *)addr)[11], ((u8_t *)addr)[12], ((u8_t *)addr)[13], ((u8_t *)addr)[14], ((u8_t *)addr)[15])