diff --git a/src/nlsr_npte.cpp b/src/nlsr_npte.cpp
new file mode 100644
index 0000000..65f2722
--- /dev/null
+++ b/src/nlsr_npte.cpp
@@ -0,0 +1,78 @@
+#include <list>
+#include <utility>
+#include "nlsr_npte.hpp"
+#include "nlsr_rte.hpp"
+#include "nlsr_nexthop.hpp"
+
+using namespace std;
+
+void
+Npte::generateNhlfromRteList()
+{
+	nhl.resetNhl();
+	for( std::list<RoutingTableEntry>::iterator it=rteList.begin();
+	                                                   it != rteList.end(); ++it )
+	{
+		for(std::list< NextHop >::iterator nhit=(*it).getNhl().getNextHopList().begin();
+		                         nhit != (*it).getNhl().getNextHopList().end(); ++nhit)
+		{
+			nhl.addNextHop((*nhit));
+		}
+	}
+}
+
+
+
+static bool
+rteCompare(RoutingTableEntry& rte, string& destRouter){
+	return rte.getDestination()==destRouter;
+}
+
+void 
+Npte::removeRoutingTableEntry(RoutingTableEntry& rte)
+{
+	std::list<RoutingTableEntry >::iterator it = std::find_if( rteList.begin(), 
+									rteList.end(),	
+   								bind(&rteCompare, _1, rte.getDestination()));
+  if ( it != rteList.end() )
+  {
+  		rteList.erase(it);
+  }
+}
+
+void 
+Npte::addRoutingTableEntry(RoutingTableEntry &rte)
+{
+	std::list<RoutingTableEntry >::iterator it = std::find_if( rteList.begin(), 
+									rteList.end(),	
+   								bind(&rteCompare, _1, rte.getDestination()));
+  if ( it == rteList.end() )
+  {
+  		rteList.push_back(rte);
+  }
+  else
+  {
+  		(*it).getNhl().resetNhl(); // reseting existing routing table's next hop
+  		for(std::list< NextHop >::iterator nhit=rte.getNhl().getNextHopList().begin();
+		                         nhit != rte.getNhl().getNextHopList().end(); ++nhit)
+		{
+			(*it).getNhl().addNextHop((*nhit));
+		}
+  }
+}
+
+//debugging purpose
+ostream&
+operator<<(ostream& os, Npte& npte)
+{
+	os<<"Name: "<<npte.getNamePrefix()<<endl;
+	std::list<RoutingTableEntry> rteList=npte.getRteList();
+	for(std::list<RoutingTableEntry >::iterator it=rteList.begin(); 
+	                                                      it !=rteList.end(); ++it)
+	{
+		cout<<(*it);
+	}
+	os<<npte.getNhl();
+
+	return os;
+}