diff --git a/service-t/src/com/android/server/ethernet/EthernetTracker.java b/service-t/src/com/android/server/ethernet/EthernetTracker.java
index 4ac6174..709b774 100644
--- a/service-t/src/com/android/server/ethernet/EthernetTracker.java
+++ b/service-t/src/com/android/server/ethernet/EthernetTracker.java
@@ -587,14 +587,18 @@
         }
     }
 
-    private class InterfaceObserver extends BaseNetdUnsolicitedEventListener {
+    @VisibleForTesting
+    class InterfaceObserver extends BaseNetdUnsolicitedEventListener {
 
         @Override
         public void onInterfaceLinkStateChanged(String iface, boolean up) {
             if (DBG) {
                 Log.i(TAG, "interfaceLinkStateChanged, iface: " + iface + ", up: " + up);
             }
-            mHandler.post(() -> updateInterfaceState(iface, up));
+            mHandler.post(() -> {
+                if (mEthernetState == ETHERNET_STATE_DISABLED) return;
+                updateInterfaceState(iface, up);
+            });
         }
 
         @Override
@@ -602,7 +606,10 @@
             if (DBG) {
                 Log.i(TAG, "onInterfaceAdded, iface: " + iface);
             }
-            mHandler.post(() -> maybeTrackInterface(iface));
+            mHandler.post(() -> {
+                if (mEthernetState == ETHERNET_STATE_DISABLED) return;
+                maybeTrackInterface(iface);
+            });
         }
 
         @Override
@@ -610,7 +617,10 @@
             if (DBG) {
                 Log.i(TAG, "onInterfaceRemoved, iface: " + iface);
             }
-            mHandler.post(() -> stopTrackingInterface(iface));
+            mHandler.post(() -> {
+                if (mEthernetState == ETHERNET_STATE_DISABLED) return;
+                stopTrackingInterface(iface);
+            });
         }
     }
 
@@ -889,6 +899,8 @@
     void dump(FileDescriptor fd, IndentingPrintWriter pw, String[] args) {
         postAndWaitForRunnable(() -> {
             pw.println(getClass().getSimpleName());
+            pw.println("Ethernet State: "
+                    + (mEthernetState == ETHERNET_STATE_ENABLED ? "enabled" : "disabled"));
             pw.println("Ethernet interface name filter: " + mIfaceMatch);
             pw.println("Default interface: " + mDefaultInterface);
             pw.println("Default interface mode: " + mDefaultInterfaceMode);
diff --git a/tests/unit/java/com/android/server/ethernet/EthernetTrackerTest.java b/tests/unit/java/com/android/server/ethernet/EthernetTrackerTest.java
index b1831c4..33b36fd 100644
--- a/tests/unit/java/com/android/server/ethernet/EthernetTrackerTest.java
+++ b/tests/unit/java/com/android/server/ethernet/EthernetTrackerTest.java
@@ -29,22 +29,23 @@
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.timeout;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
 import android.content.Context;
-import android.content.res.Resources;
 import android.net.EthernetManager;
-import android.net.InetAddresses;
-import android.net.INetworkInterfaceOutcomeReceiver;
 import android.net.IEthernetServiceListener;
 import android.net.INetd;
+import android.net.INetworkInterfaceOutcomeReceiver;
+import android.net.InetAddresses;
+import android.net.InterfaceConfigurationParcel;
 import android.net.IpConfiguration;
 import android.net.IpConfiguration.IpAssignment;
 import android.net.IpConfiguration.ProxySettings;
-import android.net.InterfaceConfigurationParcel;
 import android.net.LinkAddress;
 import android.net.NetworkCapabilities;
 import android.net.StaticIpConfiguration;
@@ -54,13 +55,13 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
-import com.android.connectivity.resources.R;
 import com.android.testutils.HandlerUtils;
 
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
@@ -410,18 +411,24 @@
                 IpConfiguration configuration) { }
     }
 
+    private InterfaceConfigurationParcel createMockedIfaceParcel(final String ifname,
+            final String hwAddr) {
+        final InterfaceConfigurationParcel ifaceParcel = new InterfaceConfigurationParcel();
+        ifaceParcel.ifName = ifname;
+        ifaceParcel.hwAddr = hwAddr;
+        ifaceParcel.flags = new String[] {INetd.IF_STATE_UP};
+        return ifaceParcel;
+    }
+
     @Test
     public void testListenEthernetStateChange() throws Exception {
-        final String testIface = "testtap123";
-        final String testHwAddr = "11:22:33:44:55:66";
-        final InterfaceConfigurationParcel ifaceParcel = new InterfaceConfigurationParcel();
-        ifaceParcel.ifName = testIface;
-        ifaceParcel.hwAddr = testHwAddr;
-        ifaceParcel.flags = new String[] {INetd.IF_STATE_UP};
-
         tracker.setIncludeTestInterfaces(true);
         waitForIdle();
 
+        final String testIface = "testtap123";
+        final String testHwAddr = "11:22:33:44:55:66";
+        final InterfaceConfigurationParcel ifaceParcel = createMockedIfaceParcel(testIface,
+                testHwAddr);
         when(mNetd.interfaceGetList()).thenReturn(new String[] {testIface});
         when(mNetd.interfaceGetCfg(eq(testIface))).thenReturn(ifaceParcel);
         doReturn(new String[] {testIface}).when(mFactory).getAvailableInterfaces(anyBoolean());
@@ -453,4 +460,43 @@
         verify(listener).onInterfaceStateChanged(eq(testIface), eq(EthernetManager.STATE_LINK_UP),
                 anyInt(), any());
     }
+
+    @Test
+    public void testListenEthernetStateChange_unsolicitedEventListener() throws Exception {
+        when(mNetd.interfaceGetList()).thenReturn(new String[] {});
+        doReturn(new String[] {}).when(mFactory).getAvailableInterfaces(anyBoolean());
+
+        tracker.setIncludeTestInterfaces(true);
+        tracker.start();
+
+        final ArgumentCaptor<EthernetTracker.InterfaceObserver> captor =
+                ArgumentCaptor.forClass(EthernetTracker.InterfaceObserver.class);
+        verify(mNetd, timeout(TIMEOUT_MS)).registerUnsolicitedEventListener(captor.capture());
+        final EthernetTracker.InterfaceObserver observer = captor.getValue();
+
+        tracker.setEthernetEnabled(false);
+        waitForIdle();
+        reset(mFactory);
+        reset(mNetd);
+
+        final String testIface = "testtap1";
+        observer.onInterfaceAdded(testIface);
+        verify(mFactory, never()).addInterface(eq(testIface), anyString(), any(), any());
+        observer.onInterfaceRemoved(testIface);
+        verify(mFactory, never()).removeInterface(eq(testIface));
+
+        final String testHwAddr = "11:22:33:44:55:66";
+        final InterfaceConfigurationParcel testIfaceParce =
+                createMockedIfaceParcel(testIface, testHwAddr);
+        when(mNetd.interfaceGetList()).thenReturn(new String[] {testIface});
+        when(mNetd.interfaceGetCfg(eq(testIface))).thenReturn(testIfaceParce);
+        doReturn(new String[] {testIface}).when(mFactory).getAvailableInterfaces(anyBoolean());
+        tracker.setEthernetEnabled(true);
+        waitForIdle();
+        reset(mFactory);
+
+        final String testIface2 = "testtap2";
+        observer.onInterfaceRemoved(testIface2);
+        verify(mFactory, timeout(TIMEOUT_MS)).removeInterface(eq(testIface2));
+    }
 }