InterestPacket, ContentPacket, Face classes added
diff --git a/model/ndn_interestpacket.h b/model/ndn_interestpacket.h
new file mode 100644
index 0000000..fddc136
--- /dev/null
+++ b/model/ndn_interestpacket.h
@@ -0,0 +1,25 @@
+//
+// ndn_interestpacket.h
+// Abstraction
+//
+// Copyright 2011 UCLA. All rights reserved.
+//
+
+#ifndef ndn_interestpacket_h
+#define ndn_interestpacket_h
+
+//#define CCN_INTEREST_LIFETIME_SEC 4
+//#define CCN_INTEREST_LIFETIME_MICROSEC (CCN_INTEREST_LIFETIME_SEC * 1000000)
+
+#include "ns3/header.h"
+#include <ns3/packet.h>
+
+namespace ns3
+{
+ class InterestPacket : public Packet
+ {
+
+ };
+}
+
+#endif
\ No newline at end of file