diff --git a/daemon/fw/forwarder.cpp b/daemon/fw/forwarder.cpp
index e8a0ade..c823ae6 100644
--- a/daemon/fw/forwarder.cpp
+++ b/daemon/fw/forwarder.cpp
@@ -144,9 +144,20 @@
   const pit::InRecordCollection& inRecords = pitEntry->getInRecords();
   bool isPending = inRecords.begin() != inRecords.end();
   if (!isPending) {
-    m_cs.find(interest,
-              bind(&Forwarder::onContentStoreHit, this, ref(inFace), pitEntry, _1, _2),
-              bind(&Forwarder::onContentStoreMiss, this, ref(inFace), pitEntry, _1));
+    if (m_csFromNdnSim == nullptr) {
+      m_cs.find(interest,
+                bind(&Forwarder::onContentStoreHit, this, ref(inFace), pitEntry, _1, _2),
+                bind(&Forwarder::onContentStoreMiss, this, ref(inFace), pitEntry, _1));
+    }
+    else {
+      shared_ptr<Data> match = m_csFromNdnSim->Lookup(interest.shared_from_this());
+      if (match != nullptr) {
+        this->onContentStoreHit(inFace, pitEntry, interest, *match);
+      }
+      else {
+        this->onContentStoreMiss(inFace, pitEntry, interest);
+      }
+    }
   }
   else {
     this->onContentStoreMiss(inFace, pitEntry, interest);
@@ -398,7 +409,10 @@
   }
 
   // CS insert
-  m_cs.insert(data);
+  if (m_csFromNdnSim == nullptr)
+    m_cs.insert(data);
+  else
+    m_csFromNdnSim->Add(data.shared_from_this());
 
   std::set<Face*> pendingDownstreams;
   // foreach PitEntry
@@ -448,7 +462,10 @@
   bool acceptToCache = inFace.getScope() == ndn::nfd::FACE_SCOPE_LOCAL;
   if (acceptToCache) {
     // CS insert
-    m_cs.insert(data, true);
+    if (m_csFromNdnSim == nullptr)
+      m_cs.insert(data, true);
+    else
+      m_csFromNdnSim->Add(data.shared_from_this());
   }
 
   NFD_LOG_DEBUG("onDataUnsolicited face=" << inFace.getId() <<
diff --git a/daemon/fw/forwarder.hpp b/daemon/fw/forwarder.hpp
index 2bac6b0..d2a5eb8 100644
--- a/daemon/fw/forwarder.hpp
+++ b/daemon/fw/forwarder.hpp
@@ -38,6 +38,8 @@
 #include "table/dead-nonce-list.hpp"
 #include "table/network-region-table.hpp"
 
+#include "ns3/ndnSIM/model/cs/ndn-content-store.hpp"
+
 namespace nfd {
 
 namespace fw {
@@ -123,6 +125,10 @@
   NetworkRegionTable&
   getNetworkRegionTable();
 
+public: // allow enabling ndnSIM content store (will be removed in the future)
+  void
+  setCsFromNdnSim(ns3::Ptr<ns3::ndn::ContentStore> cs);
+
 PUBLIC_WITH_TESTS_ELSE_PRIVATE: // pipelines
   /** \brief incoming Interest pipeline
    */
@@ -239,6 +245,8 @@
   DeadNonceList      m_deadNonceList;
   NetworkRegionTable m_networkRegionTable;
 
+  ns3::Ptr<ns3::ndn::ContentStore> m_csFromNdnSim;
+
   static const Name LOCALHOST_NAME;
 
   // allow Strategy (base class) to enter pipelines
@@ -317,6 +325,12 @@
   return m_networkRegionTable;
 }
 
+inline void
+Forwarder::setCsFromNdnSim(ns3::Ptr<ns3::ndn::ContentStore> cs)
+{
+  m_csFromNdnSim = cs;
+}
+
 #ifdef WITH_TESTS
 inline void
 Forwarder::dispatchToStrategy(shared_ptr<pit::Entry> pitEntry, function<void(fw::Strategy*)> trigger)