diff --git a/libs/debian_service/proto/DebianService.proto b/libs/debian_service/proto/DebianService.proto
index a887bf2..bf05ebe 100644
--- a/libs/debian_service/proto/DebianService.proto
+++ b/libs/debian_service/proto/DebianService.proto
@@ -22,6 +22,7 @@
 option java_multiple_files = true;
 
 service DebianService {
+  rpc ReportVmActivePorts (ReportVmActivePortsRequest) returns (ReportVmActivePortsResponse) {}
   rpc ReportVmIpAddr (IpAddr) returns (ReportVmIpAddrResponse) {}
   rpc OpenForwardingRequestQueue (QueueOpeningRequest) returns (stream ForwardingRequestItem) {}
 }
@@ -38,6 +39,14 @@
   bool success = 1;
 }
 
+message ReportVmActivePortsRequest {
+  repeated int32 ports = 1;
+}
+
+message ReportVmActivePortsResponse {
+  bool success = 1;
+}
+
 message ForwardingRequestItem {
   int32 guest_tcp_port = 1;
   int32 vsock_port = 2;
diff --git a/libs/vm_launcher_lib/java/com/android/virtualization/vmlauncher/DebianServiceImpl.java b/libs/vm_launcher_lib/java/com/android/virtualization/vmlauncher/DebianServiceImpl.java
index c64ff77..1f65fcb 100644
--- a/libs/vm_launcher_lib/java/com/android/virtualization/vmlauncher/DebianServiceImpl.java
+++ b/libs/vm_launcher_lib/java/com/android/virtualization/vmlauncher/DebianServiceImpl.java
@@ -26,6 +26,8 @@
 import com.android.virtualization.vmlauncher.proto.ForwardingRequestItem;
 import com.android.virtualization.vmlauncher.proto.IpAddr;
 import com.android.virtualization.vmlauncher.proto.QueueOpeningRequest;
+import com.android.virtualization.vmlauncher.proto.ReportVmActivePortsRequest;
+import com.android.virtualization.vmlauncher.proto.ReportVmActivePortsResponse;
 import com.android.virtualization.vmlauncher.proto.ReportVmIpAddrResponse;
 
 import io.grpc.stub.StreamObserver;
@@ -74,6 +76,18 @@
     }
 
     @Override
+    public void reportVmActivePorts(
+            ReportVmActivePortsRequest request,
+            StreamObserver<ReportVmActivePortsResponse> responseObserver) {
+        Log.d(DebianServiceImpl.TAG, "reportVmActivePorts: " + request.toString());
+        // TODO(b/340126051): Modify shared preference based on information in the request.
+        ReportVmActivePortsResponse reply =
+                ReportVmActivePortsResponse.newBuilder().setSuccess(true).build();
+        responseObserver.onNext(reply);
+        responseObserver.onCompleted();
+    }
+
+    @Override
     public void reportVmIpAddr(
             IpAddr request, StreamObserver<ReportVmIpAddrResponse> responseObserver) {
         Log.d(DebianServiceImpl.TAG, "reportVmIpAddr: " + request.toString());