diff --git a/src/main.cpp b/src/main.cpp
index e360e5d..5d0e5ed 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,21 +4,97 @@
  * See COPYING for copyright and distribution information.
  */
 
+#include "common.hpp"
 #include "nrd.hpp"
+#include "nrd-config.hpp"
+#include <getopt.h>
+
+struct ProgramOptions
+{
+  bool showUsage;
+  std::string config;
+};
+
+static void
+printUsage(std::ostream& os, const std::string& programName)
+{
+  os << "Usage: \n"
+    << "  " << programName << " [options]\n"
+    << "\n"
+    << "Run NRD daemon\n"
+    << "\n"
+    << "Options:\n"
+    << "  [--help]   - print this help message\n"
+    << "  [--config /path/to/nrd.conf] - path to configuration file "
+    << "(default: " << DEFAULT_CONFIG_FILE << ")\n"
+    ;
+}
+
+static bool
+parseCommandLine(int argc, char** argv, ProgramOptions& options)
+{
+  options.showUsage = false;
+  options.config = DEFAULT_CONFIG_FILE;
+
+  while (true) {
+    int optionIndex = 0;
+    static ::option longOptions[] = {
+      { "help"   , no_argument      , 0, 0 },
+      { "config" , required_argument, 0, 0 },
+      { 0        , 0                , 0, 0 }
+    };
+    int c = getopt_long_only(argc, argv, "", longOptions, &optionIndex);
+    if (c == -1)
+      break;
+
+    switch (c) {
+      case 0:
+        switch (optionIndex) {
+          case 0: // help
+            options.showUsage = true;
+            break;
+          case 1: // config
+            options.config = ::optarg;
+            break;
+          default:
+            return false;
+        }
+        break;
+    }
+  }
+  return true;
+}
 
 int
 main(int argc, char** argv)
 {
-  try {
-    // TODO: the configFilename should be obtained from command line arguments.
-    std::string configFilename("nrd.conf");
+  //processing command line arguments, if available
+  ProgramOptions options;
+  bool isCommandLineValid = parseCommandLine(argc, argv, options);
+  if (!isCommandLineValid) {
+    printUsage(std::cerr, argv[0]);
+    return 1;
+  }
+  if (options.showUsage) {
+    printUsage(std::cout, argv[0]);
+    return 0;
+  }
 
-    ndn::nrd::Nrd nrd(configFilename);
+  //Now read the config file and pass the security section to validator
+  try {
+    std::string configFilename(options.config);
+
+    ndn::nrd::NrdConfig config;
+    config.load(configFilename);
+    ndn::nrd::ConfigSection securitySection = config.getSecuritySection();
+
+    ndn::nrd::Nrd nrd(securitySection, configFilename);
     nrd.enableLocalControlHeader();
     nrd.listen();
   }
   catch (std::exception& e) {
     std::cerr << "ERROR: " << e.what() << std::endl;
   }
+
   return 0;
 }