Удаление лака показывает ошибку 403 Не разрешено

 sub vcl_recv {
     if (req.method == "PURGE") {
         # If not allowed then a error 405 is returned
         if (! req.http.x-forwarded-for || req.http.x-forwarded-for !~ "1.2.3.4") {
            return(synth(405, "This forwarded IP is not allowed to send PURGE requests."));
        }
        return (purge);
    }
}