@@ -298,6 +298,11 @@ static void mrecv_ack_del(mdata *data, struct sockaddr_in *addr)

   if(mrecv_ack_search(&t, &m, data, addr)){

     return;

   }

+  if(m->sendto){

+    if(memcmp(&(m->addr.sin_addr), &(addr->sin_addr), sizeof(addr->sin_addr))){

+      return;

+    }

+  }

   if(!set_hoststate(t, m, data->head.nstate)){

     lprintf(0, "%s: not allocate state area\n", __func__);

     return;