further MOBIKE stuff:

kernel properly reports network reconfiguration and informs all IKE_SAs
  MOBIKE in IKE_AUTH: MOBIKE_SUPPORTED notify and address exchange
  reestablishment of IKE_SAs on network reconfiguration kinda works
  not stable yet!

src/charon/kernel/kernel_interface.h

@@ -325,13 +325,11 @@ struct kernel_interface_t {
 	 *
 	 * @param this			calling object
 	 * @param virtual_ip	virtual ip address to assign
-	 * @param iface_ip		IP of an interface to remove virtual IP from
 	 * @return
 	 * 						- SUCCESS
 	 * 						- FAILED if kernel comm failed
 	 */
-	status_t (*del_ip) (kernel_interface_t *this, host_t *virtual_ip,
-						host_t *iface_ip);
+	status_t (*del_ip) (kernel_interface_t *this, host_t *virtual_ip);
 	
 	/**
 	 * @brief Destroys a kernel_interface object.