--- a/src/fd-net-device/examples/dummy-network.cc	Mon Jul 13 20:32:31 2015 -0700
+++ b/src/fd-net-device/examples/dummy-network.cc	Wed Jul 15 16:52:16 2015 +0200
@@ -35,6 +35,10 @@
 int
 main (int argc, char *argv[])
 {
+  GlobalValue::Bind ("SimulatorImplementationType", StringValue ("ns3::RealtimeSimulatorImpl"));
+
+  GlobalValue::Bind ("ChecksumEnabled", BooleanValue (true));
+
   NodeContainer nodes;
   nodes.Create (2);
 
@@ -69,7 +73,7 @@
   app->SetStartTime (Seconds (0.0));
   app->SetStopTime (Seconds (4.0));
 
-  fd.EnablePcapAll ("dummy-network", false);
+  fd.EnablePcapAll ("dummy-network", true);
 
   Simulator::Stop (Seconds (5.));
   Simulator::Run ();