Once again fixed #30038: DHCP/AutoIP cooperation failed when replugging the network cable after an AutoIP address was assigned.

CHANGELOG

@@ -229,6 +229,10 @@ HISTORY
 
   ++ Bugfixes:
 
+  2010-10-05: Simon Goldschmidt
+  * dhcp.c: Once again fixed #30038: DHCP/AutoIP cooperation failed when
+    replugging the network cable after an AutoIP address was assigned.
+
   2010-08-10: Simon Goldschmidt
   * tcp.c: Fixed bug #30728: tcp_new_port() did not check listen pcbs
 

src/core/dhcp.c

@@ -762,7 +762,10 @@ dhcp_network_changed(struct netif *netif)
   default:
     dhcp->tries = 0;
 #if LWIP_DHCP_AUTOIP_COOP
-    dhcp->autoip_coop_state = DHCP_AUTOIP_COOP_STATE_OFF;
+    if(dhcp->autoip_coop_state == DHCP_AUTOIP_COOP_STATE_ON) {
+      autoip_stop(netif);
+      dhcp->autoip_coop_state = DHCP_AUTOIP_COOP_STATE_OFF;
+    }
 #endif /* LWIP_DHCP_AUTOIP_COOP */
     dhcp_discover(netif);
     break;