diff --git a/CHANGELOG b/CHANGELOG
index 04e63e31..a1ede80e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -63,6 +63,9 @@ HISTORY
 
   ++ Bug fixes:
 
+  2006-11-28 Christiaan Simons
+  * netif.c: In netif_add() fixed missing clear of ip_addr, netmask, gw and flags.
+
   2006-10-11 Christiaan Simons
   * api_lib.c etharp.c, ip.c, memp.c, stats.c, sys.{c,h} tcp.h:
     Partially accepted patch #5449 for ANSI C compatibility / build fixes.
diff --git a/src/core/netif.c b/src/core/netif.c
index a2e8a03e..b1e2bc18 100644
--- a/src/core/netif.c
+++ b/src/core/netif.c
@@ -69,7 +69,12 @@ netif_add(struct netif *netif, struct ip_addr *ipaddr, struct ip_addr *netmask,
   err_t (* input)(struct pbuf *p, struct netif *netif))
 {
   static s16_t netifnum = 0;
-  
+
+  /* reset new interface configuration state */
+  netif->ip_addr.addr = 0;
+  netif->netmask.addr = 0;
+  netif->gw.addr = 0;
+  netif->flags = 0;
 #if LWIP_DHCP
   /* netif not under DHCP control by default */
   netif->dhcp = NULL;