diff --git a/apps/ccnx-interest-sender.h b/apps/ccnx-interest-sender.h
new file mode 100644
index 0000000..0a9d2b5
--- /dev/null
+++ b/apps/ccnx-interest-sender.h
@@ -0,0 +1,104 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Ilya Moiseenko <iliamo@cs.ucla.edu>
+ */
+
+#include "ns3/application.h"
+#include "ns3/log.h"
+#include "ns3/random-variable.h"
+#include "ns3/nstime.h"
+#include "ns3/event-id.h"
+#include "ns3/ptr.h"
+#include "ns3/simulator.h"
+#include "ns3/ccnx-interest-header.h"
+#include "ns3/ccnx-local-face.h"
+#include "ns3/name-components.h"
+#include "ns3/packet.h"
+#include "ns3/boolean.h"
+#include "ns3/integer.h"
+#include "ns3/uinteger.h"
+#include "ns3/random-variable.h"
+#include <limits> 
+#include "ns3/pointer.h"
+
+namespace ns3 
+{
+    
+class Socket;
+    
+class CcnxInterestSender: public Application
+{
+public: 
+    static TypeId GetTypeId (void);
+        
+    CcnxInterestSender ();
+        
+    virtual ~CcnxInterestSender ();
+        
+protected:
+    virtual void DoDispose (void);
+private:
+    // inherited from Application base class.
+    virtual void StartApplication (void);    // Called at time specified by Start
+    virtual void StopApplication (void);     // Called at time specified by Stop
+        
+    //Time m_onTime;
+    Time m_offTime;
+    Ptr<Name::Components> m_interestName;
+    Time m_interestLifeTime;
+    int32_t m_minSuffixComponents;
+    int32_t m_maxSuffixComponents;
+    bool m_childSelector;
+    Ptr<Name::Components> m_exclude;
+    uint32_t m_initialNonce;
+    
+    //EventId         m_startStopEvent;     // Event id for next start or stop event
+    EventId         m_sendEvent;    // Eventid of pending "send packet" event
+    TypeId          m_tid;
+    Ptr<CcnxLocalFace> m_face;
+        
+    //helpers
+    void CancelEvents ();
+        
+    void Construct (Ptr<Node> n,
+                    std::string tid,
+                    const Time& offtime,
+                    Ptr<Name::Components> nameComponents,
+                    const Time& lifetime,
+                    const int32_t& minSuffixComponents,
+                    const int32_t& maxSuffixComponents,
+                    const bool childSelector,
+                    Ptr<Name::Components> exclude,
+                    const uint32_t& initialNonce
+                    );
+    
+    // Event handlers
+    void StartSending ();
+    void StopSending ();
+    void SendPacket ();
+        
+private:
+    void ScheduleNextTx ();
+    //void ScheduleStartEvent ();
+    //void ScheduleStopEvent ();
+    void ConnectionSucceeded (Ptr<Socket>);
+    void ConnectionFailed (Ptr<Socket>);
+    void Ignore (Ptr<Socket>);
+        
+};
+}