diff --git a/charts/vald-helm-operator/crds/valdrelease.yaml b/charts/vald-helm-operator/crds/valdrelease.yaml
index 370c0faa55..dc8c68c6f2 100644
--- a/charts/vald-helm-operator/crds/valdrelease.yaml
+++ b/charts/vald-helm-operator/crds/valdrelease.yaml
@@ -2022,6 +2022,11 @@ spec:
                           enum:
                             - glg
                             - zap
+                    networkPolicy:
+                      type: object
+                      properties:
+                        enabled:
+                          type: boolean
                     observability:
                       type: object
                       properties:
@@ -4133,6 +4138,11 @@ spec:
                             annotations:
                               type: object
                               x-kubernetes-preserve-unknown-fields: true
+                            defaultBackend:
+                              type: object
+                              properties:
+                                enabled:
+                                  type: boolean
                             enabled:
                               type: boolean
                             host:
@@ -5287,6 +5297,11 @@ spec:
                             annotations:
                               type: object
                               x-kubernetes-preserve-unknown-fields: true
+                            defaultBackend:
+                              type: object
+                              properties:
+                                enabled:
+                                  type: boolean
                             enabled:
                               type: boolean
                             host:
diff --git a/charts/vald/templates/gateway/filter/ing.yaml b/charts/vald/templates/gateway/filter/ing.yaml
index aac828d69b..b00cded218 100644
--- a/charts/vald/templates/gateway/filter/ing.yaml
+++ b/charts/vald/templates/gateway/filter/ing.yaml
@@ -31,10 +31,12 @@ metadata:
     app.kubernetes.io/component: gateway-filter
   name: {{ $gateway.name }}-ingress
 spec:
+  {{- if $gateway.ingress.defaultBackend.enabled }}
   defaultBackend:
     service:
       name: {{ $gateway.name }}
       {{- include "vald.ingressPort" (dict "Values" $gateway.ingress) | nindent 6 }}
+  {{- end }}
   rules:
   - host: {{ $gateway.ingress.host }}
     http:
diff --git a/charts/vald/templates/gateway/lb/ing.yaml b/charts/vald/templates/gateway/lb/ing.yaml
index 82dc991ea4..052d430d05 100644
--- a/charts/vald/templates/gateway/lb/ing.yaml
+++ b/charts/vald/templates/gateway/lb/ing.yaml
@@ -31,10 +31,12 @@ metadata:
     app.kubernetes.io/component: gateway-lb
   name: {{ $gateway.name }}-ingress
 spec:
+  {{- if $gateway.ingress.defaultBackend.enabled }}
   defaultBackend:
     service:
       name: {{ $gateway.name }}
       {{- include "vald.ingressPort" (dict "Values" $gateway.ingress) | nindent 6 }}
+  {{- end }}
   rules:
   - host: {{ $gateway.ingress.host }}
     http:
diff --git a/charts/vald/values.schema.json b/charts/vald/values.schema.json
index 7629ca858b..98e17dccff 100644
--- a/charts/vald/values.schema.json
+++ b/charts/vald/values.schema.json
@@ -3275,6 +3275,15 @@
             }
           }
         },
+        "networkPolicy": {
+          "type": "object",
+          "properties": {
+            "enabled": {
+              "type": "boolean",
+              "description": "if network policy enabled TODO: Change this to true after implementing user custom network policy parser"
+            }
+          }
+        },
         "observability": {
           "type": "object",
           "properties": {
@@ -6829,6 +6838,16 @@
                   "type": "object",
                   "description": "annotations for ingress"
                 },
+                "defaultBackend": {
+                  "type": "object",
+                  "description": "defaultBackend config",
+                  "properties": {
+                    "enabled": {
+                      "type": "boolean",
+                      "description": "gateway ingress defaultBackend enabled"
+                    }
+                  }
+                },
                 "enabled": {
                   "type": "boolean",
                   "description": "gateway ingress enabled"
@@ -8767,6 +8786,16 @@
                   "type": "object",
                   "description": "annotations for ingress"
                 },
+                "defaultBackend": {
+                  "type": "object",
+                  "description": "defaultBackend config",
+                  "properties": {
+                    "enabled": {
+                      "type": "boolean",
+                      "description": "gateway ingress defaultBackend enabled"
+                    }
+                  }
+                },
                 "enabled": {
                   "type": "boolean",
                   "description": "gateway ingress enabled"
diff --git a/charts/vald/values.yaml b/charts/vald/values.yaml
index fcdd68b327..4fd6742e1e 100644
--- a/charts/vald/values.yaml
+++ b/charts/vald/values.yaml
@@ -1076,6 +1076,12 @@ gateway:
       # @schema {"name": "gateway.lb.ingress.servicePort", "type": "string"}
       # gateway.lb.ingress.servicePort -- service port to be exposed by ingress
       servicePort: grpc
+      # @schema {"name": "gateway.lb.ingress.defaultBackend", "type": "object"}
+      # gateway.lb.ingress.defaultBackend -- defaultBackend config
+      defaultBackend:
+        # @schema {"name": "gateway.lb.ingress.defaultBackend.enabled", "type": "boolean"}
+        # gateway.lb.ingress.defaultBackend.enabled -- gateway ingress defaultBackend enabled
+        enabled: true
     # @schema {"name": "gateway.lb.resources", "type": "object", "anchor": "resources"}
     # gateway.lb.resources -- compute resources
     resources:
@@ -1344,6 +1350,12 @@ gateway:
       # @schema {"name": "gateway.filter.ingress.servicePort", "type": "string"}
       # gateway.filter.ingress.servicePort -- service port to be exposed by ingress
       servicePort: grpc
+      # @schema {"name": "gateway.filter.ingress.defaultBackend", "type": "object"}
+      # gateway.filter.ingress.defaultBackend -- defaultBackend config
+      defaultBackend:
+        # @schema {"name": "gateway.filter.ingress.defaultBackend.enabled", "type": "boolean"}
+        # gateway.filter.ingress.defaultBackend.enabled -- gateway ingress defaultBackend enabled
+        enabled: true
     # @schema {"name": "gateway.filter.resources", "type": "object", "anchor": "resources"}
     # gateway.filter.resources -- compute resources
     resources: