diff --git a/charts/kube-ovn-v2/README.md b/charts/kube-ovn-v2/README.md
index 7ba0545196a..967d1c8b796 100644
--- a/charts/kube-ovn-v2/README.md
+++ b/charts/kube-ovn-v2/README.md
@@ -525,10 +525,7 @@ false
   "images": {
     "kubeovn": {
       "repository": "kube-ovn",
-      "support_arm": true,
-      "tag": "v1.14.0",
-      "thirdparty": true,
-      "vpcRepository": "vpc-nat-gateway"
+      "tag": "v1.14.0"
     }
   },
   "registry": {
@@ -1172,6 +1169,42 @@ false
 			<td><pre lang="json">
 "v1.15.0"
 </pre>
+</td>
+			<td>Image tag.</td>
+		</tr>
+		<tr>
+			<td>natGw.image</td>
+			<td>object</td>
+			<td><pre lang="">
+"{}"
+</pre>
+</td>
+			<td>Image used by the NAT gateway.</td>
+		</tr>
+		<tr>
+			<td>natGw.image.pullPolicy</td>
+			<td>string</td>
+			<td><pre lang="json">
+"IfNotPresent"
+</pre>
+</td>
+			<td>Image pull policy.</td>
+		</tr>
+		<tr>
+			<td>natGw.image.repository</td>
+			<td>string</td>
+			<td><pre lang="json">
+"docker.io/kubeovn/vpc-nat-gateway"
+</pre>
+</td>
+			<td>Image repository.</td>
+		</tr>
+		<tr>
+			<td>natGw.image.tag</td>
+			<td>string</td>
+			<td><pre lang="json">
+"v1.15.0"
+</pre>
 </td>
 			<td>Image tag.</td>
 		</tr>
@@ -1512,6 +1545,15 @@ false
 </td>
 			<td>IPv6 CIDR.</td>
 		</tr>
+		<tr>
+			<td>networking.skipConntrackDstCidrs</td>
+			<td>string</td>
+			<td><pre lang="json">
+""
+</pre>
+</td>
+			<td>Comma-separated list of destination IP CIDRs that should skip conntrack processing.</td>
+		</tr>
 		<tr>
 			<td>networking.stack</td>
 			<td>string</td>
diff --git a/charts/kube-ovn-v2/templates/nat-gw/vpc-nat-config.yaml b/charts/kube-ovn-v2/templates/nat-gw/vpc-nat-config.yaml
index 06112ed9c6f..57e197856ab 100755
--- a/charts/kube-ovn-v2/templates/nat-gw/vpc-nat-config.yaml
+++ b/charts/kube-ovn-v2/templates/nat-gw/vpc-nat-config.yaml
@@ -4,7 +4,7 @@ metadata:
   name: ovn-vpc-nat-config
   namespace: {{ .Values.namespace }}
 data:
-  image: {{ .Values.global.registry.address }}/{{ .Values.global.images.kubeovn.vpcRepository }}:{{ .Values.global.images.kubeovn.tag }}
+  image: {{ .Values.natGw.image.repository }}:{{ .Values.natGw.image.tag }}
   {{- with .Values.natGw.bgpSpeaker.image }}
   bgpSpeakerImage: {{ .repository }}:{{ .tag }}
   {{- end }}
diff --git a/charts/kube-ovn-v2/values.yaml b/charts/kube-ovn-v2/values.yaml
index f50015cfea7..0151ee09932 100644
--- a/charts/kube-ovn-v2/values.yaml
+++ b/charts/kube-ovn-v2/values.yaml
@@ -7,10 +7,7 @@ global:
   images:
     kubeovn:
       repository: kube-ovn
-      vpcRepository: vpc-nat-gateway
       tag: v1.14.0
-      support_arm: true
-      thirdparty: true
 
 # -- Image configuration.
 # @section -- Global parameters
@@ -264,7 +261,6 @@ cni:
   # @section -- CNI configuration
   nonPrimaryCNI: false
 
-
 # -- Configuration of the validating webhook used to verify custom resources before they are pushed to Kubernetes.
 # Make sure cert-manager is installed for the generation of certificates for the webhook.
 # See https://kubeovn.github.io/docs/stable/en/guide/webhook/
@@ -296,6 +292,19 @@ natGw:
   # manually destroyed and recreated.
   # @section -- NAT gateways configuration
   namePrefix: "vpc-nat-gw"
+  # -- Image used by the NAT gateway.
+  # @section -- NAT gateways configuration
+  # @default -- "{}"
+  image:
+    # -- Image repository.
+    # @section -- NAT gateways configuration
+    repository: docker.io/kubeovn/vpc-nat-gateway
+    # -- Image tag.
+    # @section -- NAT gateways configuration
+    tag: v1.15.0
+    # -- Image pull policy.
+    # @section -- NAT gateways configuration
+    pullPolicy: IfNotPresent
   # -- Configuration of the BGP sidecar for when a NAT gateway is running in BGP mode.
   # @section -- NAT gateways configuration
   # @default -- "{}"
@@ -319,7 +328,6 @@ natGw:
     # @section -- NAT gateways configuration
     apiNadProvider: "{{ .Values.apiNad.name }}.{{ .Values.namespace }}.ovn"
 
-
 # -- Configuration for network policies
 # @section -- Network Policies
 # @default -- "{}"
diff --git a/charts/kube-ovn/templates/vpc-nat-config.yaml b/charts/kube-ovn/templates/vpc-nat-config.yaml
index ae9a0ce8ceb..92e2fd94808 100755
--- a/charts/kube-ovn/templates/vpc-nat-config.yaml
+++ b/charts/kube-ovn/templates/vpc-nat-config.yaml
@@ -7,7 +7,7 @@ metadata:
     kubernetes.io/description: |
       kube-ovn vpc-nat common config
 data:
-  image: {{ .Values.global.registry.address }}/{{ .Values.global.images.kubeovn.vpcRepository }}:{{ .Values.global.images.kubeovn.tag }}
+  image: {{ .Values.global.registry.address }}/{{ .Values.global.images.natgateway.repository }}:{{ or .Values.global.images.natgateway.tag .Values.global.images.kubeovn.tag }}
 
 ---
 kind: ConfigMap
diff --git a/charts/kube-ovn/values.yaml b/charts/kube-ovn/values.yaml
index f3dc5975792..c473239ac67 100644
--- a/charts/kube-ovn/values.yaml
+++ b/charts/kube-ovn/values.yaml
@@ -8,10 +8,11 @@ global:
   images:
     kubeovn:
       repository: kube-ovn
-      vpcRepository: vpc-nat-gateway
       tag: v1.15.0
-      support_arm: true
-      thirdparty: true
+    natgateway:
+      repository: vpc-nat-gateway
+      # Falls back to the same tag as kubeovn if empty
+      tag: ""
 
 image:
   pullPolicy: IfNotPresent