diff --git a/scripts/install-cni.sh b/scripts/install-cni.sh
index 004bcfc7..d221f2be 100755
--- a/scripts/install-cni.sh
+++ b/scripts/install-cni.sh
@@ -151,6 +151,11 @@ if [[ "${MIGRATE_TO_DPV2:-}" == "true" ]]; then
 fi
 
 if [[ "${ENABLE_CILIUM_PLUGIN}" == "true" ]]; then
+  dpv2_unified_cni=$(jq -r '.metadata.labels."cloud.google.com/gke-dpv2-unified-cni"' <<<"${node_object}")
+  log "Using Cilium plug-in; unified mode: '${dpv2_unified_cni}' (no action needed here if true)"
+  if [[ "${dpv2_unified_cni}" = "true" ]]; then
+    success
+  fi
   cilium_cni_config='{"type": "cilium-cni", "enable-route-mtu": true}'
   if [[ -n "${CILIUM_FAST_START_NAMESPACES:-}" ]]; then
     cilium_cni_config=$(jq --arg namespaces "${CILIUM_FAST_START_NAMESPACES:-}" '.["dpv2-fast-start-namespaces"] = $namespaces' <<<"${cilium_cni_config}")
diff --git a/scripts/testcase/testcase-basic-v2.sh b/scripts/testcase/testcase-basic-v2.sh
index 29f76a25..1dc8ac42 100644
--- a/scripts/testcase/testcase-basic-v2.sh
+++ b/scripts/testcase/testcase-basic-v2.sh
@@ -24,6 +24,7 @@ function before_test() {
         echo '{"object":{
                 "metadata": {
                   "labels": {
+                    "cloud.google.com/gke-dpv2-unified-cni": "true"
                   },
                   "creationTimestamp": "2024-01-03T11:54:01Z",
                   "name": "gke-my-cluster-default-pool-128bc25d-9c94",
diff --git a/scripts/testcase/testcase-basic.sh b/scripts/testcase/testcase-basic.sh
index a0a1ea28..11f4c6da 100644
--- a/scripts/testcase/testcase-basic.sh
+++ b/scripts/testcase/testcase-basic.sh
@@ -22,6 +22,7 @@ function before_test() {
         echo '{"object":{
                 "metadata": {
                   "labels": {
+                    "cloud.google.com/gke-dpv2-unified-cni": "true"
                   },
                   "creationTimestamp": "2024-01-03T11:54:01Z",
                   "name": "gke-my-cluster-default-pool-128bc25d-9c94",
diff --git a/scripts/testcase/testcase-calico-v2.sh b/scripts/testcase/testcase-calico-v2.sh
index 1098c0c4..e51caf4a 100644
--- a/scripts/testcase/testcase-calico-v2.sh
+++ b/scripts/testcase/testcase-calico-v2.sh
@@ -29,6 +29,7 @@ function before_test() {
         echo '{"object":{
                 "metadata": {
                   "labels": {
+                    "cloud.google.com/gke-dpv2-unified-cni": "true"
                   },
                   "creationTimestamp": "2024-01-03T11:54:01Z",
                   "name": "gke-my-cluster-default-pool-128bc25d-9c94",
diff --git a/scripts/testcase/testcase-calico.sh b/scripts/testcase/testcase-calico.sh
index ec10ccff..a03d9651 100644
--- a/scripts/testcase/testcase-calico.sh
+++ b/scripts/testcase/testcase-calico.sh
@@ -27,6 +27,7 @@ function before_test() {
         echo '{"object":{
                 "metadata": {
                   "labels": {
+                    "cloud.google.com/gke-dpv2-unified-cni": "true"
                   },
                   "creationTimestamp": "2024-01-03T11:54:01Z",
                   "name": "gke-my-cluster-default-pool-128bc25d-9c94",
diff --git a/scripts/testcase/testcase-cilium-skip.sh b/scripts/testcase/testcase-cilium-skip.sh
new file mode 100644
index 00000000..0a8e9390
--- /dev/null
+++ b/scripts/testcase/testcase-cilium-skip.sh
@@ -0,0 +1,67 @@
+export KUBERNETES_SERVICE_HOST=kubernetes.default.svc
+export KUBERNETES_SERVICE_PORT=443
+
+export ENABLE_CALICO_NETWORK_POLICY=false
+export ENABLE_CILIUM_PLUGIN=true
+export CILIUM_HEALTHZ_PORT=63197
+export CILIUM_FAST_START_NAMESPACES=
+export ENABLE_MASQUERADE=false
+export ENABLE_IPV6=false
+
+CNI_SPEC_TEMPLATE=$(cat testdata/spec-template.json)
+export CNI_SPEC_TEMPLATE
+
+function before_test() {
+
+  # shellcheck disable=SC2329
+  function curl() {
+    # shellcheck disable=SC2317
+    case "$*" in
+      *http://metadata.google.internal/computeMetadata/v1/instance/network-interfaces/0*)
+        echo '{"ipv6s": ["2600:1900:4000:318:0:7:0:0"]}'
+        ;;
+      *https://kubernetes.default.svc:443/api/v1/nodes*)
+        echo '{"object":{
+                "metadata": {
+                  "labels": {
+                    "cloud.google.com/gke-dpv2-unified-cni": "true"
+                  },
+                  "creationTimestamp": "2024-01-03T11:54:01Z",
+                  "name": "gke-my-cluster-default-pool-128bc25d-9c94",
+                  "resourceVersion": "891003",
+                  "uid": "f2353a2f-ca8c-4ca0-8dd3-ad1f964a54f0"
+                },
+                "spec": {
+                  "podCIDR": "10.52.1.0/24",
+                  "podCIDRs": [
+                    "10.52.1.0/24"
+                  ],
+                  "providerID": "gce://my-gke-project/us-central1-c/gke-my-cluster-default-pool-128bc25d-9c94"
+                }
+              }}'
+        ;;
+      *http://localhost:63197/*)
+        echo 'healthz'
+        ;;
+      *)
+        #unsupported
+        exit 1
+    esac
+  }
+  export -f curl
+
+  rm -f "/host/etc/cni/net.d/${CNI_SPEC_NAME}"
+
+}
+
+function verify() {
+  local actual
+
+  if [[ -f "/host/etc/cni/net.d/${CNI_SPEC_NAME}" ]]; then
+    actual=$(jq -S . <"/host/etc/cni/net.d/${CNI_SPEC_NAME}")
+    echo "Expected CNI config to be missing, but it has:"
+    echo "$actual"
+    return 1
+  fi
+
+}