--- a
+++ b/src/policies/DIF/RA/PDUFG/IntPDUFG.h
@@ -0,0 +1,71 @@
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// 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 Lesser General Public License for more details.
+// 
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program.  If not, see http://www.gnu.org/licenses/.
+// 
+
+#ifndef PDUFTG_H_
+#define PDUFTG_H_
+
+#include <omnetpp.h>
+
+#include "PDUFGNeighbor.h"
+#include "IntPDUForwarding.h"
+#include "DA.h"
+
+// This is mapped as string --> port because Address do not have <, > operators overloads.
+typedef std::list<PDUFGNeighbor *> NeighborState;
+typedef NeighborState::iterator EIter;
+
+
+class IntPDUFG  : public cSimpleModule {
+public:
+
+    //Constructor/Destructor
+    IntPDUFG();
+    ~IntPDUFG();
+
+    // Find the next known neighbor to reach the destination.
+    virtual PDUFGNeighbor * getNextNeighbor(const Address &destination, const unsigned short & qos);
+
+    //
+    // Flow up/down operations:
+    //
+
+    // Inserts a new flow through which a neighbor can be reached.
+    void insertFlowInfo(Address addr, unsigned short qos, RMTPort * port);
+    // Removes an existing flow from the existing ones.
+    void removeFlowInfo(RMTPort * port);
+
+    // A new flow has been inserted/or removed
+    virtual void insertedFlow(const Address &addr, const unsigned short &qos, RMTPort * port) = 0;
+    virtual void removedFlow(const Address &addr, const unsigned short &qos, RMTPort * port) = 0;
+
+    //Routing has processes a routing update
+    virtual void routingUpdated() = 0;
+
+protected:
+    // Contains the list of N-DIF neighbors of this IPC Address.
+    //
+    NeighborState neiState;
+
+    // Initialize.
+    void initialize();
+
+    // Called after initialize
+    virtual void onPolicyInit() = 0;
+
+private:
+    IntPDUForwarding * fwd;
+};
+
+#endif /* PDUFTG_H_ */