diff --git a/service/jni/com_android_server_connectivity_ClatCoordinator.cpp b/service/jni/com_android_server_connectivity_ClatCoordinator.cpp
index 0272bc1..9603139 100644
--- a/service/jni/com_android_server_connectivity_ClatCoordinator.cpp
+++ b/service/jni/com_android_server_connectivity_ClatCoordinator.cpp
@@ -303,6 +303,25 @@
     return 0; // TODO: return forked clatd pid.
 }
 
+// TODO: stop clatd and rename to .._stopClatd.
+static void com_android_server_connectivity_ClatCoordinator_maybeStopBpf(JNIEnv* env, jobject clazz,
+                                                                       jstring iface, jstring pfx96,
+                                                                       jstring v4, jstring v6,
+                                                                       jint pid /* unused */) {
+    ScopedUtfChars ifaceStr(env, iface);
+    ScopedUtfChars pfx96Str(env, pfx96);
+    ScopedUtfChars v4Str(env, v4);
+    ScopedUtfChars v6Str(env, v6);
+
+    if (!net::clat::initMaps()) {
+        net::clat::ClatdTracker tracker = {};
+        if (!initTracker(ifaceStr.c_str(), pfx96Str.c_str(), v4Str.c_str(), v6Str.c_str(),
+                &tracker)) {
+            net::clat::maybeStopBpf(tracker);
+        }
+    }
+}
+
 /*
  * JNI registration.
  */
@@ -329,6 +348,9 @@
          "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Ljava/lang/"
          "String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)I",
          (void*)com_android_server_connectivity_ClatCoordinator_maybeStartBpf},
+        {"native_maybeStopBpf",
+         "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;I)V",
+          (void*)com_android_server_connectivity_ClatCoordinator_maybeStopBpf},
 };
 
 int register_android_server_connectivity_ClatCoordinator(JNIEnv* env) {
diff --git a/service/src/com/android/server/connectivity/ClatCoordinator.java b/service/src/com/android/server/connectivity/ClatCoordinator.java
index a785974..5a5e24a 100644
--- a/service/src/com/android/server/connectivity/ClatCoordinator.java
+++ b/service/src/com/android/server/connectivity/ClatCoordinator.java
@@ -74,6 +74,12 @@
     private final Dependencies mDeps;
     @Nullable
     private String mIface = null;
+    @Nullable
+    private String mNat64Prefix = null;
+    @Nullable
+    private String mXlatLocalAddress4 = null;
+    @Nullable
+    private String mXlatLocalAddress6 = null;
     private int mPid = INVALID_PID;
 
     @VisibleForTesting
@@ -171,6 +177,14 @@
                 @NonNull String v4, @NonNull String v6) throws IOException {
             return native_maybeStartBpf(tunfd, readsock6, writesock6, iface, pfx96, v4, v6);
         }
+
+        /**
+         * Maybe stop bpf.
+         */
+        public void maybeStopBpf(String iface, String pfx96, String v4, String v6, int pid)
+                throws IOException {
+            native_maybeStopBpf(iface, pfx96, v4, v6, pid);
+        }
     }
 
     @VisibleForTesting
@@ -317,6 +331,10 @@
         try {
             mDeps.maybeStartBpf(tunFd.getFileDescriptor(), readSock6.getFileDescriptor(),
                     writeSock6.getFileDescriptor(), iface, pfx96, v4, v6);
+            mIface = iface;
+            mNat64Prefix = pfx96;
+            mXlatLocalAddress4 = v4;
+            mXlatLocalAddress6 = v6;
         } catch (IOException e) {
             throw new IOException("Error start bpf on " + iface + ": " + e);
         }
@@ -325,6 +343,22 @@
         return null;
     }
 
+    /**
+     * Stop clatd
+     */
+    public void clatStop() throws IOException {
+        mDeps.maybeStopBpf(mIface, mNat64Prefix, mXlatLocalAddress4, mXlatLocalAddress6,
+                mPid /* unused */);
+        // TODO: remove setIptablesDropRule
+
+        Log.i(TAG, "clatd on " + mIface + " stopped");
+
+        mIface = null;
+        mNat64Prefix = null;
+        mXlatLocalAddress4 = null;
+        mXlatLocalAddress6 = null;
+    }
+
     private static native String native_selectIpv4Address(String v4addr, int prefixlen)
             throws IOException;
     private static native String native_generateIpv6Address(String iface, String v4,
@@ -341,4 +375,6 @@
     private static native int native_maybeStartBpf(FileDescriptor tunfd, FileDescriptor readsock6,
             FileDescriptor writesock6, String iface, String pfx96, String v4, String v6)
             throws IOException;
+    private static native void native_maybeStopBpf(String iface, String pfx96, String v4,
+            String v6, int pid) throws IOException;
 }