diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index c78a973..9ae4fa2 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -361,11 +361,17 @@
      */
     public static final int TYPE_MOBILE_IA = 14;
 
-    /** {@hide} */
-    public static final int MAX_RADIO_TYPE   = TYPE_MOBILE_IA;
+    /**
+     * The network that uses proxy to achieve connectivity.
+     * {@hide}
+     */
+    public static final int TYPE_PROXY = 16;
 
     /** {@hide} */
-    public static final int MAX_NETWORK_TYPE = TYPE_MOBILE_IA;
+    public static final int MAX_RADIO_TYPE   = TYPE_PROXY;
+
+    /** {@hide} */
+    public static final int MAX_NETWORK_TYPE = TYPE_PROXY;
 
     /**
      * If you want to set the default network preference,you can directly
@@ -444,6 +450,8 @@
                 return "WIFI_P2P";
             case TYPE_MOBILE_IA:
                 return "MOBILE_IA";
+            case TYPE_PROXY:
+                return "PROXY";
             default:
                 return Integer.toString(type);
         }
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index d42ae3a..8d158cf 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -26,6 +26,7 @@
 import static android.net.ConnectivityManager.TYPE_MOBILE;
 import static android.net.ConnectivityManager.TYPE_WIFI;
 import static android.net.ConnectivityManager.TYPE_WIMAX;
+import static android.net.ConnectivityManager.TYPE_PROXY;
 import static android.net.ConnectivityManager.getNetworkTypeName;
 import static android.net.ConnectivityManager.isNetworkTypeValid;
 import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL;
@@ -69,6 +70,7 @@
 import android.net.NetworkStateTracker;
 import android.net.NetworkUtils;
 import android.net.Proxy;
+import android.net.ProxyDataTracker;
 import android.net.ProxyProperties;
 import android.net.RouteInfo;
 import android.net.SamplingDataTracker;
@@ -729,6 +731,8 @@
                     return makeWimaxStateTracker(mContext, mTrackerHandler);
                 case TYPE_ETHERNET:
                     return EthernetDataTracker.getInstance();
+                case TYPE_PROXY:
+                    return new ProxyDataTracker();
                 default:
                     throw new IllegalArgumentException(
                             "Trying to create a NetworkStateTracker for an unknown radio type: "