IP Filtering with source: remote_ip and x-forwarded-for IP address does not work about envoy HOT 6 CLOSED

   "dynamic_route_configs": [
    {
     "version_info": "18",
     "route_config": {
      "@type": "type.googleapis.com/envoy.config.route.v3.RouteConfiguration",
      "name": "https/grafana.example.com",
      "virtual_hosts": [
       {
        "name": "grafana.example.com",
        "domains": [
         "grafana.example.com"
        ],
        "routes": [
         {
          "match": {
           "prefix": "/"
          },
          "route": {
           "cluster": "monitoring/prometheus-grafana/80/da39a3ee5e"
          },
          "metadata": {
           "filter_metadata": {
            "envoy.access_loggers.file": {
             "io.projectcontour.name": "grafana",
             "io.projectcontour.namespace": "monitoring",
             "io.projectcontour.kind": "HTTPProxy"
            }
           }
          }
         }
        ],
        "typed_per_filter_config": {
         "envoy.filters.http.rbac": {
          "@type": "type.googleapis.com/envoy.extensions.filters.http.rbac.v3.RBACPerRoute",
          "rbac": {
           "rules": {
            "policies": {
             "ip-rules": {
              "permissions": [
               {
                "any": true
               }
              ],
              "principals": [
               {
                "direct_remote_ip": {
                 "address_prefix": "a.b.c.d",
                 "prefix_len": 29
                }
               }
              ]
             }
            }
           }
          }
         }
        }
       }
      ],