Initial steps for Interest packet processing
diff --git a/model/ccnx-content-store.h b/model/ccnx-content-store.h
index c82fb8a..7f75e92 100644
--- a/model/ccnx-content-store.h
+++ b/model/ccnx-content-store.h
@@ -150,10 +150,17 @@
  * \ingroup ccnx
  * \brief NDN content store entry
  */
-class CcnxContentStore
+class CcnxContentStore : public Object
 {
 public:
   /**
+   * \brief Interface ID
+   *
+   * \return interface ID
+   */
+  static TypeId GetTypeId ();
+
+  /**
    * Default constructor
    */
   CcnxContentStore( );