diff --git a/core/jni/android_net_NetUtils.cpp b/core/jni/android_net_NetUtils.cpp
index 3adf770..db132ec 100644
--- a/core/jni/android_net_NetUtils.cpp
+++ b/core/jni/android_net_NetUtils.cpp
@@ -55,7 +55,6 @@
  * to look them up every time.
  */
 static struct fieldIds {
-    jclass dhcpInfoInternalClass;
     jmethodID constructorId;
     jfieldID ipaddress;
     jfieldID gateway;
@@ -163,7 +162,7 @@
     result = ::dhcp_do_request(nameStr, ipaddr, gateway, &prefixLength,
                                         dns1, dns2, server, &lease);
     env->ReleaseStringUTFChars(ifname, nameStr);
-    if (result == 0 && dhcpInfoInternalFieldIds.dhcpInfoInternalClass != NULL) {
+    if (result == 0) {
         env->SetObjectField(info, dhcpInfoInternalFieldIds.ipaddress, env->NewStringUTF(ipaddr));
         env->SetObjectField(info, dhcpInfoInternalFieldIds.gateway, env->NewStringUTF(gateway));
         env->SetIntField(info, dhcpInfoInternalFieldIds.prefixLength, prefixLength);
@@ -229,17 +228,16 @@
     jclass netutils = env->FindClass(NETUTILS_PKG_NAME);
     LOG_FATAL_IF(netutils == NULL, "Unable to find class " NETUTILS_PKG_NAME);
 
-    dhcpInfoInternalFieldIds.dhcpInfoInternalClass = env->FindClass("android/net/DhcpInfoInternal");
-    if (dhcpInfoInternalFieldIds.dhcpInfoInternalClass != NULL) {
-        dhcpInfoInternalFieldIds.constructorId = env->GetMethodID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "<init>", "()V");
-        dhcpInfoInternalFieldIds.ipaddress = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "ipAddress", "Ljava/lang/String;");
-        dhcpInfoInternalFieldIds.gateway = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "gateway", "Ljava/lang/String;");
-        dhcpInfoInternalFieldIds.prefixLength = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "prefixLength", "I");
-        dhcpInfoInternalFieldIds.dns1 = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "dns1", "Ljava/lang/String;");
-        dhcpInfoInternalFieldIds.dns2 = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "dns2", "Ljava/lang/String;");
-        dhcpInfoInternalFieldIds.serverAddress = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "serverAddress", "Ljava/lang/String;");
-        dhcpInfoInternalFieldIds.leaseDuration = env->GetFieldID(dhcpInfoInternalFieldIds.dhcpInfoInternalClass, "leaseDuration", "I");
-    }
+    jclass dhcpInfoInternalClass = env->FindClass("android/net/DhcpInfoInternal");
+    LOG_FATAL_IF(dhcpInfoInternalClass == NULL, "Unable to find class android/net/DhcpInfoInternal");
+    dhcpInfoInternalFieldIds.constructorId = env->GetMethodID(dhcpInfoInternalClass, "<init>", "()V");
+    dhcpInfoInternalFieldIds.ipaddress = env->GetFieldID(dhcpInfoInternalClass, "ipAddress", "Ljava/lang/String;");
+    dhcpInfoInternalFieldIds.gateway = env->GetFieldID(dhcpInfoInternalClass, "gateway", "Ljava/lang/String;");
+    dhcpInfoInternalFieldIds.prefixLength = env->GetFieldID(dhcpInfoInternalClass, "prefixLength", "I");
+    dhcpInfoInternalFieldIds.dns1 = env->GetFieldID(dhcpInfoInternalClass, "dns1", "Ljava/lang/String;");
+    dhcpInfoInternalFieldIds.dns2 = env->GetFieldID(dhcpInfoInternalClass, "dns2", "Ljava/lang/String;");
+    dhcpInfoInternalFieldIds.serverAddress = env->GetFieldID(dhcpInfoInternalClass, "serverAddress", "Ljava/lang/String;");
+    dhcpInfoInternalFieldIds.leaseDuration = env->GetFieldID(dhcpInfoInternalClass, "leaseDuration", "I");
 
     return AndroidRuntime::registerNativeMethods(env,
             NETUTILS_PKG_NAME, gNetworkUtilMethods, NELEM(gNetworkUtilMethods));
diff --git a/services/java/com/android/server/ConnectivityService.java b/services/java/com/android/server/ConnectivityService.java
index 375ee7c..d251a22 100644
--- a/services/java/com/android/server/ConnectivityService.java
+++ b/services/java/com/android/server/ConnectivityService.java
@@ -24,6 +24,7 @@
 import android.database.ContentObserver;
 import android.net.ConnectivityManager;
 import android.net.DummyDataStateTracker;
+import android.net.EthernetDataTracker;
 import android.net.IConnectivityManager;
 import android.net.LinkProperties;
 import android.net.MobileDataStateTracker;
@@ -408,6 +409,10 @@
                 mNetTrackers[netType] = BluetoothTetheringDataTracker.getInstance();
                 mNetTrackers[netType].startMonitoring(context, mHandler);
                 break;
+            case ConnectivityManager.TYPE_ETHERNET:
+                mNetTrackers[netType] = EthernetDataTracker.getInstance();
+                mNetTrackers[netType].startMonitoring(context, mHandler);
+                break;
             default:
                 loge("Trying to create a DataStateTracker for an unknown radio type " +
                         mNetConfigs[netType].mRadio);
@@ -1346,13 +1351,13 @@
                 addDefaultRoute(mNetTrackers[netType]);
             } else {
                 // many radios add a default route even when we don't want one.
-                // remove the default interface unless we need it for our active network
+                // remove the default route unless we need it for our active network
                 if (mActiveDefaultNetwork != -1) {
-                    LinkProperties linkProperties =
+                    LinkProperties defaultLinkProperties =
                             mNetTrackers[mActiveDefaultNetwork].getLinkProperties();
                     LinkProperties newLinkProperties =
                             mNetTrackers[netType].getLinkProperties();
-                    String defaultIface = linkProperties.getInterfaceName();
+                    String defaultIface = defaultLinkProperties.getInterfaceName();
                     if (defaultIface != null &&
                             !defaultIface.equals(newLinkProperties.getInterfaceName())) {
                         removeDefaultRoute(mNetTrackers[netType]);