diff --git a/src/route/name-map.cpp b/src/route/name-map.cpp
new file mode 100644
index 0000000..3bc9de5
--- /dev/null
+++ b/src/route/name-map.cpp
@@ -0,0 +1,67 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2014-2024,  The University of Memphis,
+ *                           Regents of the University of California
+ *
+ * This file is part of NLSR (Named-data Link State Routing).
+ * See AUTHORS.md for complete list of NLSR authors and contributors.
+ *
+ * NLSR is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * NLSR 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
+ * NLSR, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "name-map.hpp"
+#include "nlsr.hpp"
+#include "adjacent.hpp"
+#include "lsa/lsa.hpp"
+#include "lsdb.hpp"
+
+namespace nlsr {
+
+void
+NameMap::addEntry(const ndn::Name& rtrName)
+{
+  int32_t mappingNo = static_cast<int32_t>(m_bimap.size());
+  m_bimap.by<ndn::Name>().insert({rtrName, mappingNo});
+}
+
+std::optional<ndn::Name>
+NameMap::getRouterNameByMappingNo(int32_t mn) const
+{
+  auto it = m_bimap.by<MappingNo>().find(mn);
+  if (it == m_bimap.by<MappingNo>().end()) {
+    return std::nullopt;
+  }
+  return it->get<ndn::Name>();
+}
+
+std::optional<int32_t>
+NameMap::getMappingNoByRouterName(const ndn::Name& rtrName) const
+{
+  auto it = m_bimap.by<ndn::Name>().find(rtrName);
+  if (it == m_bimap.by<ndn::Name>().end()) {
+    return std::nullopt;
+  }
+  return it->get<MappingNo>();
+}
+
+std::ostream&
+operator<<(std::ostream& os, const NameMap& map)
+{
+  os << "---------------NameMap---------------";
+  for (const auto& entry : map.m_bimap) {
+    os << "\nMapEntry: ( Router: " << entry.get<ndn::Name>()
+       << " Mapping No: " << entry.get<NameMap::MappingNo>() << " )";
+  }
+  return os;
+}
+
+} // namespace nlsr