diff --git a/controllers/configmap.go b/controllers/configmap.go
index 9725d64..9e975b6 100644
--- a/controllers/configmap.go
+++ b/controllers/configmap.go
@@ -110,6 +110,10 @@ func envoyConfig(es *egressv1.ExternalService) (string, error) {
 	}
 
 	for _, port := range es.Spec.Ports {
+		var dnsRefreshRate *duration.Duration
+		if es.Spec.EnvoyDnsRefreshRateS != 0 {
+			dnsRefreshRate = &durationpb.Duration{Seconds: spec.EnvoyDnsRefreshRateS}
+		}
 		var clusters []*envoyv3.Cluster
 		protocol := protocolToEnvoy(port.Protocol)
 		name := fmt.Sprintf("%s_%s_%s", es.Name, envoycorev3.SocketAddress_Protocol_name[int32(protocol)], strconv.Itoa(int(port.Port)))
@@ -131,6 +135,9 @@ func envoyConfig(es *egressv1.ExternalService) (string, error) {
 					KeepaliveInterval: &wrapperspb.UInt32Value{Value: 5},
 				},
 			},
+
+			DnsRefreshRate: dnsRefreshRate,
+			RespectDnsTtl:  es.Spec.EnvoyRespectDnsTTL,
 			LoadAssignment: &envoyendpoint.ClusterLoadAssignment{
 				ClusterName: name,
 				Endpoints: []*envoyendpoint.LocalityLbEndpoints{