--- a/src/helper/packet-sink-helper.cc	Sat May 17 11:15:02 2008 -0700
+++ b/src/helper/packet-sink-helper.cc	Sat May 17 12:08:20 2008 -0700
@@ -41,7 +41,7 @@
 void 
 PacketSinkHelper::SetUdpLocal (Ipv4Address ip, uint16_t port)
 {
-  m_factory.Set ("Protocol", String ("ns3::Udp"));
+  m_factory.Set ("Protocol", String ("ns3::UdpSocketFactory"));
   m_factory.Set ("Local", Address (InetSocketAddress (ip, port)));
 }
 void