diff --git a/framework/src/android/net/IConnectivityManager.aidl b/framework/src/android/net/IConnectivityManager.aidl
index c8f588d..db001f9 100644
--- a/framework/src/android/net/IConnectivityManager.aidl
+++ b/framework/src/android/net/IConnectivityManager.aidl
@@ -188,7 +188,7 @@
 
     void startNattKeepaliveWithFd(in Network network, in ParcelFileDescriptor pfd, int resourceId,
             int intervalSeconds, in ISocketKeepaliveCallback cb, String srcAddr,
-            String dstAddr, boolean automaticOnOffKeepalives);
+            String dstAddr, boolean automaticOnOffKeepalives, in Network underpinnedNetwork);
 
     void startTcpKeepalive(in Network network, in ParcelFileDescriptor pfd, int intervalSeconds,
             in ISocketKeepaliveCallback cb);
diff --git a/framework/src/android/net/NattSocketKeepalive.java b/framework/src/android/net/NattSocketKeepalive.java
index 77137f4..a83b5b4 100644
--- a/framework/src/android/net/NattSocketKeepalive.java
+++ b/framework/src/android/net/NattSocketKeepalive.java
@@ -66,10 +66,12 @@
      *                    the supplied {@link Callback} will see a call to
      *                    {@link Callback#onError(int)} with {@link #ERROR_INVALID_INTERVAL}.
      * @param flags Flags to enable/disable available options on this keepalive.
+     * @param underpinnedNetwork The underpinned network of this keepalive.
+     *
      * @hide
      */
     @Override
-    protected void startImpl(int intervalSec, int flags) {
+    protected void startImpl(int intervalSec, int flags, Network underpinnedNetwork) {
         if (0 != (flags & ~FLAG_AUTOMATIC_ON_OFF)) {
             throw new IllegalArgumentException("Illegal flag value for "
                     + this.getClass().getSimpleName() + " : " + flags);
@@ -79,7 +81,8 @@
             try {
                 mService.startNattKeepaliveWithFd(mNetwork, mPfd, mResourceId,
                         intervalSec, mCallback, mSource.getHostAddress(),
-                        mDestination.getHostAddress(), automaticOnOffKeepalives);
+                        mDestination.getHostAddress(), automaticOnOffKeepalives,
+                        underpinnedNetwork);
             } catch (RemoteException e) {
                 Log.e(TAG, "Error starting socket keepalive: ", e);
                 throw e.rethrowFromSystemServer();
diff --git a/framework/src/android/net/SocketKeepalive.java b/framework/src/android/net/SocketKeepalive.java
index 00104f6..311126e 100644
--- a/framework/src/android/net/SocketKeepalive.java
+++ b/framework/src/android/net/SocketKeepalive.java
@@ -355,7 +355,7 @@
      */
     public final void start(@IntRange(from = MIN_INTERVAL_SEC, to = MAX_INTERVAL_SEC)
             int intervalSec) {
-        startImpl(intervalSec, 0 /* flags */);
+        startImpl(intervalSec, 0 /* flags */, null /* underpinnedNetwork */);
     }
 
     /**
@@ -374,16 +374,18 @@
      *                    the supplied {@link Callback} will see a call to
      *                    {@link Callback#onError(int)} with {@link #ERROR_INVALID_INTERVAL}.
      * @param flags Flags to enable/disable available options on this keepalive.
+     * @param underpinnedNetwork The underpinned network of this keepalive.
      * @hide
      */
     @SystemApi(client = PRIVILEGED_APPS)
     public final void start(@IntRange(from = MIN_INTERVAL_SEC, to = MAX_INTERVAL_SEC)
-            int intervalSec, @StartFlags int flags) {
-        startImpl(intervalSec, flags);
+            int intervalSec, @StartFlags int flags, @NonNull Network underpinnedNetwork) {
+        startImpl(intervalSec, flags, underpinnedNetwork);
     }
 
     /** @hide */
-    protected abstract void startImpl(int intervalSec, @StartFlags int flags);
+    protected abstract void startImpl(int intervalSec, @StartFlags int flags,
+            Network underpinnedNetwork);
 
     /**
      * Requests that keepalive be stopped. The application must wait for {@link Callback#onStopped}
diff --git a/framework/src/android/net/TcpSocketKeepalive.java b/framework/src/android/net/TcpSocketKeepalive.java
index cda5830..b548f6d 100644
--- a/framework/src/android/net/TcpSocketKeepalive.java
+++ b/framework/src/android/net/TcpSocketKeepalive.java
@@ -50,7 +50,7 @@
      *   acknowledgement.
      */
     @Override
-    protected void startImpl(int intervalSec, int flags) {
+    protected void startImpl(int intervalSec, int flags, Network underpinnedNetwork) {
         if (0 != flags) {
             throw new IllegalArgumentException("Illegal flag value for "
                     + this.getClass().getSimpleName() + " : " + flags);