diff --git a/model/wire/ccnb/wire-ccnb-interest.cc b/model/wire/ccnb/wire-ccnb-interest.cc
new file mode 100644
index 0000000..8a0ec3b
--- /dev/null
+++ b/model/wire/ccnb/wire-ccnb-interest.cc
@@ -0,0 +1,451 @@
+/* -*- 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>
+ *         Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#include "../ccnb.h"
+
+#include "wire-ccnb.h"
+
+#include "ns3/log.h"
+#include "ns3/unused.h"
+#include "ns3/packet.h"
+
+#include "ccnb-parser/visitors/name-visitor.h"
+#include "ccnb-parser/visitors/non-negative-integer-visitor.h"
+#include "ccnb-parser/visitors/timestamp-visitor.h"
+#include "ccnb-parser/visitors/uint32t-blob-visitor.h"
+
+#include "ccnb-parser/syntax-tree/block.h"
+#include "ccnb-parser/syntax-tree/dtag.h"
+
+#include <boost/foreach.hpp>
+
+NS_LOG_COMPONENT_DEFINE ("ndn.wire.Ccnb.Interest");
+
+NDN_NAMESPACE_BEGIN
+
+namespace wire {
+namespace ccnb {
+
+NS_OBJECT_ENSURE_REGISTERED (Interest);
+
+TypeId
+Interest::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::ndn::Interest::Ccnb")
+    .SetGroupName ("Ndn")
+    .SetParent<Header> ()
+    .AddConstructor<Interest> ()
+    ;
+  return tid;
+}
+
+TypeId
+Interest::GetInstanceTypeId (void) const
+{
+  return GetTypeId ();
+}
+
+Interest::Interest ()
+  : m_interest (Create<ndn::Interest> ())
+{
+}
+
+Interest::Interest (Ptr<ndn::Interest> interest)
+  : m_interest (interest)
+{
+}
+
+Ptr<ndn::Interest>
+Interest::GetInterest ()
+{
+  return m_interest;
+}
+
+Ptr<Packet>
+Interest::ToWire (Ptr<const ndn::Interest> interest)
+{
+  Ptr<const Packet> p = interest->GetWire ();
+  if (!p)
+    {
+      Ptr<Packet> packet = Create<Packet> (*interest->GetPayload ());
+      Interest wireEncoding (ConstCast<ndn::Interest> (interest));
+      packet->AddHeader (wireEncoding);
+      interest->SetWire (packet);
+
+      p = packet;
+    }
+  
+  return p->Copy ();
+}
+
+Ptr<ndn::Interest>
+Interest::FromWire (Ptr<Packet> packet)
+{
+  Ptr<ndn::Interest> interest = Create<ndn::Interest> ();
+  interest->SetWire (packet->Copy ());
+
+  Interest wireEncoding (interest);
+  packet->RemoveHeader (wireEncoding);
+
+  interest->SetPayload (packet);
+
+  return interest;
+}
+
+void
+Interest::Serialize (Buffer::Iterator start) const
+{
+  Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_Interest, CcnbParser::CCN_DTAG); // <Interest>
+  
+  Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_Name, CcnbParser::CCN_DTAG); // <Name>
+  Ccnb::AppendName (start, m_interest->GetName());                // <Component>...</Component>...
+  Ccnb::AppendCloser (start);                               // </Name>
+
+  // if (m_interest->GetMinSuffixComponents() >= 0)
+  //   {
+  //     Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_MinSuffixComponents, CcnbParser::CCN_DTAG);
+  //     Ccnb::AppendNumber (start, m_interest->GetMinSuffixComponents ());
+  //     Ccnb::AppendCloser (start);
+  //   }
+  // if (m_interest->GetMaxSuffixComponents() >= 0)
+  //   {
+  //     Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_MaxSuffixComponents, CcnbParser::CCN_DTAG);
+  //     Ccnb::AppendNumber (start, m_interest->GetMaxSuffixComponents ());
+  //     Ccnb::AppendCloser (start);
+  //   }
+  // if (m_interest->IsEnabledExclude() && m_interest->GetExclude().size() > 0)
+  //   {
+  //     Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_Exclude, CcnbParser::CCN_DTAG); // <Exclude>
+  //     Ccnb::AppendName (start, m_interest->GetExclude());                // <Component>...</Component>...
+  //     Ccnb::AppendCloser (start);                                  // </Exclude>
+  //   }
+  // if (m_interest->IsEnabledChildSelector())
+  //   {
+  //     Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_ChildSelector, CcnbParser::CCN_DTAG);
+  //     Ccnb::AppendNumber (start, 1);
+  //     Ccnb::AppendCloser (start);
+  //   }
+  // if (m_interest->IsEnabledAnswerOriginKind())
+  //   {
+  //     Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_AnswerOriginKind, CcnbParser::CCN_DTAG);
+  //     Ccnb::AppendNumber (start, 1);
+  //     Ccnb::AppendCloser (start);
+  //   }
+  if (m_interest->GetScope() >= 0)
+    {
+      Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_Scope, CcnbParser::CCN_DTAG);
+      Ccnb::AppendNumber (start, m_interest->GetScope ());
+      Ccnb::AppendCloser (start);
+    }
+  if (!m_interest->GetInterestLifetime().IsZero())
+    {
+      Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_InterestLifetime, CcnbParser::CCN_DTAG);
+      Ccnb::AppendTimestampBlob (start, m_interest->GetInterestLifetime ());
+      Ccnb::AppendCloser (start);
+    }
+  if (m_interest->GetNonce()>0)
+    {
+      uint32_t nonce = m_interest->GetNonce();
+      Ccnb::AppendTaggedBlob (start, CcnbParser::CCN_DTAG_Nonce, nonce);
+    }
+    
+  if (m_interest->GetNack ()>0)
+    {
+      Ccnb::AppendBlockHeader (start, CcnbParser::CCN_DTAG_Nack, CcnbParser::CCN_DTAG);
+      Ccnb::AppendNumber (start, m_interest->GetNack ());
+      Ccnb::AppendCloser (start);
+    }
+  Ccnb::AppendCloser (start); // </Interest>
+}
+
+uint32_t
+Interest::GetSerializedSize () const
+{
+  size_t written = 0;
+  written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_Interest); // <Interest>
+  
+  written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_Name); // <Name>
+  written += Ccnb::EstimateName (m_interest->GetName()); // <Component>...</Component>...
+  written += 1; // </Name>
+
+  // if (m_interest->GetMinSuffixComponents() >= 0)
+  //   {
+  //     written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_MinSuffixComponents);
+  //     written += Ccnb::EstimateNumber (m_interest->GetMinSuffixComponents ());
+  //     written += 1;
+  //   }
+  // if (m_interest->GetMaxSuffixComponents() >= 0)
+  //   {
+  //     written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_MaxSuffixComponents);
+  //     written += Ccnb::EstimateNumber (m_interest->GetMaxSuffixComponents ());
+  //     written += 1;
+  //   }
+  // if (m_interest->IsEnabledExclude() && m_interest->GetExclude().size() > 0)
+  //   {
+  //     written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_Exclude);
+  //     written += Ccnb::EstimateName (m_interest->GetExclude());                // <Component>...</Component>...
+  //     written += 1;                                  // </Exclude>
+  //   }
+  // if (m_interest->IsEnabledChildSelector())
+  //   {
+  //     written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_ChildSelector);
+  //     written += Ccnb::EstimateNumber (1);
+  //     written += 1;
+  //   }
+  // if (m_interest->IsEnabledAnswerOriginKind())
+  //   {
+  //     written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_AnswerOriginKind);
+  //     written += Ccnb::EstimateNumber (1);
+  //     written += 1;
+  //   }
+  if (m_interest->GetScope() >= 0)
+    {
+      written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_Scope);
+      written += Ccnb::EstimateNumber (m_interest->GetScope ());
+      written += 1;
+    }
+  if (!m_interest->GetInterestLifetime().IsZero())
+    {
+      written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_InterestLifetime);
+      written += Ccnb::EstimateTimestampBlob (m_interest->GetInterestLifetime());
+      written += 1;
+    }
+  if (m_interest->GetNonce()>0)
+    {
+      written += Ccnb::EstimateTaggedBlob (CcnbParser::CCN_DTAG_Nonce, sizeof(uint32_t));
+    }
+  if (m_interest->GetNack ()>0)
+    {
+        written += Ccnb::EstimateBlockHeader (CcnbParser::CCN_DTAG_Nack);
+        written += Ccnb::EstimateNumber (m_interest->GetNack ());
+        written += 1;
+    }
+
+  written += 1; // </Interest>
+
+  return written;
+}
+
+class InterestVisitor : public CcnbParser::VoidDepthFirstVisitor
+{
+public:
+  virtual void visit (CcnbParser::Dtag &n, boost::any param/*should be CcnxInterest* */);
+};
+
+// We don't care about any other fields
+void
+InterestVisitor::visit (CcnbParser::Dtag &n, boost::any param/*should be Interest* */)
+{
+  // uint32_t n.m_dtag;
+  // std::list<Ptr<Block> > n.m_nestedBlocks;
+
+  static CcnbParser::NonNegativeIntegerVisitor nonNegativeIntegerVisitor;
+  static CcnbParser::NameVisitor               nameVisitor;
+  static CcnbParser::TimestampVisitor          timestampVisitor;
+  static CcnbParser::Uint32tBlobVisitor        nonceVisitor;
+  
+  ndn::Interest &interest = *(boost::any_cast<ndn::Interest*> (param));
+
+  switch (n.m_dtag)
+    {
+    case CcnbParser::CCN_DTAG_Interest:
+      NS_LOG_DEBUG ("Interest");
+  
+      // process nested blocks
+      BOOST_FOREACH (Ptr<CcnbParser::Block> block, n.m_nestedTags)
+        {
+          block->accept (*this, param);
+        }
+      break;
+    case CcnbParser::CCN_DTAG_Name:
+      {
+        NS_LOG_DEBUG ("Name");
+
+        // process name components
+        Ptr<Name> name = Create<Name> ();
+        
+        BOOST_FOREACH (Ptr<CcnbParser::Block> block, n.m_nestedTags)
+          {
+            block->accept (nameVisitor, &(*name));
+          }
+        interest.SetName (name);
+        break;
+      }
+    // case CcnbParser::CCN_DTAG_MinSuffixComponents:
+    //   NS_LOG_DEBUG ("MinSuffixComponents");
+    //   if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+    //     throw CcnbParser::CcnbDecodingException ();
+    //   interest.SetMinSuffixComponents (
+    //            boost::any_cast<uint32_t> (
+    //                                       (*n.m_nestedTags.begin())->accept(
+    //                                                                        nonNegativeIntegerVisitor
+    //                                                                        )));
+    //   break;
+    // case CcnbParser::CCN_DTAG_MaxSuffixComponents:
+    //   NS_LOG_DEBUG ("MaxSuffixComponents");
+    //   if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+    //     throw CcnbParser::CcnbDecodingException ();
+    //   interest.SetMaxSuffixComponents (
+    //            boost::any_cast<uint32_t> (
+    //                                       (*n.m_nestedTags.begin())->accept(
+    //                                                                        nonNegativeIntegerVisitor
+    //                                                                        )));
+    //   break;
+    // case CcnbParser::CCN_DTAG_Exclude:
+    //   {
+    //     NS_LOG_DEBUG ("Exclude");
+    //     // process exclude components
+    //     Ptr<Name> exclude = Create<Name> ();
+        
+    //     BOOST_FOREACH (Ptr<CcnbParser::Block> block, n.m_nestedTags)
+    //       {
+    //         block->accept (nameVisitor, &(*exclude));
+    //       }
+    //     interest.SetExclude (exclude);
+    //     break;
+    //   }
+    // case CcnbParser::CCN_DTAG_ChildSelector:
+    //   NS_LOG_DEBUG ("ChildSelector");
+    //   if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+    //     throw CcnbParser::CcnbDecodingException ();
+
+    //   interest.SetChildSelector (
+    //            1 == boost::any_cast<uint32_t> (
+    //                                       (*n.m_nestedTags.begin())->accept(
+    //                                                                        nonNegativeIntegerVisitor
+    //                                                                        )));
+    //   break;
+    // case CCN_DTAG_AnswerOriginKind:
+    //   NS_LOG_DEBUG ("AnswerOriginKind");
+    //   if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+    //     throw CcnbParser::CcnbDecodingException ();
+    //   interest.SetAnswerOriginKind (
+    //            1 == boost::any_cast<uint32_t> (
+    //                                       (*n.m_nestedTags.begin())->accept(
+    //                                                                        nonNegativeIntegerVisitor
+    //                                                                        )));
+    //   break;
+    case CcnbParser::CCN_DTAG_Scope: 
+      NS_LOG_DEBUG ("Scope");
+      if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+        throw CcnbParser::CcnbDecodingException ();
+      interest.SetScope (
+               boost::any_cast<uint32_t> (
+                                          (*n.m_nestedTags.begin())->accept(
+                                                                           nonNegativeIntegerVisitor
+                                                                           )));
+      break;
+    case CcnbParser::CCN_DTAG_InterestLifetime:
+      NS_LOG_DEBUG ("InterestLifetime");
+      if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+        throw CcnbParser::CcnbDecodingException ();
+
+      interest.SetInterestLifetime (
+               boost::any_cast<Time> (
+                                      (*n.m_nestedTags.begin())->accept(
+                                                                        timestampVisitor
+                                                                        )));
+      break;
+    case CcnbParser::CCN_DTAG_Nonce:
+      NS_LOG_DEBUG ("Nonce");
+      if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+        throw CcnbParser::CcnbDecodingException ();
+
+      interest.SetNonce (
+               boost::any_cast<uint32_t> (
+                                          (*n.m_nestedTags.begin())->accept(
+                                                                           nonceVisitor
+                                                                           )));
+      break;
+    
+            
+    case CcnbParser::CCN_DTAG_Nack:
+      NS_LOG_DEBUG ("Nack");
+      if (n.m_nestedTags.size()!=1) // should be exactly one UDATA inside this tag
+        throw CcnbParser::CcnbDecodingException ();
+            
+      interest.SetNack (
+               boost::any_cast<uint32_t> (
+                                          (*n.m_nestedTags.begin())->accept(nonNegativeIntegerVisitor)));
+      break;
+    }
+}
+
+
+uint32_t
+Interest::Deserialize (Buffer::Iterator start)
+{
+  static InterestVisitor interestVisitor;
+
+  Buffer::Iterator i = start;
+  Ptr<CcnbParser::Block> root = CcnbParser::Block::ParseBlock (i);
+  root->accept (interestVisitor, GetPointer (m_interest));
+  
+  return i.GetDistanceFrom (start);
+}
+
+void
+Interest::Print (std::ostream &os) const
+{
+  os << "I: " << m_interest->GetName ();
+  
+  return;
+  // os << "<Interest>\n  <Name>" << GetName () << "</Name>\n";
+  // if (GetNack ()>0)
+  //   {
+  //     os << "  <NACK>";
+  //     switch (GetNack ())
+  //       {
+  //       case NACK_LOOP:
+  //         os << "loop";
+  //         break;
+  //       case NACK_CONGESTION:
+  //         os << "congestion";
+  //         break;
+  //       default:
+  //         os << "unknown";
+  //         break;
+  //       }
+  //     os << "</NACK>\n";
+  //   }
+  // if (GetMinSuffixComponents () >= 0)
+  //   os << "  <MinSuffixComponents>" << GetMinSuffixComponents () << "</MinSuffixComponents>\n";
+  // if (GetMaxSuffixComponents () >= 0)
+  //   os << "  <MaxSuffixComponents>" << m_maxSuffixComponents << "</MaxSuffixComponents>\n";
+  // if (IsEnabledExclude () && GetExclude ().size()>0)
+  //   os << "  <Exclude>" << GetExclude () << "</Exclude>\n";
+  // if (IsEnabledChildSelector ())
+  //   os << "  <ChildSelector />\n";
+  // if (IsEnabledAnswerOriginKind ())
+  //   os << "  <AnswerOriginKind />\n";
+  // if (GetScope () >= 0)
+  //   os << "  <Scope>" << GetScope () << "</Scope>\n";
+  // if ( !GetInterestLifetime ().IsZero() )
+  //   os << "  <InterestLifetime>" << GetInterestLifetime () << "</InterestLifetime>\n";
+  // if (GetNonce ()>0)
+  //   os << "  <Nonce>" << GetNonce () << "</Nonce>\n";
+  // os << "</Interest>";
+}
+
+} // ccnb
+} // wire
+
+NDN_NAMESPACE_END