--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/helper/csma-star-helper.h	Tue Nov 24 10:16:58 2009 -0500
@@ -0,0 +1,59 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * 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
+ */
+
+// Define an object to create a dumbbell topology.
+
+#ifndef CSMA_STAR_HELPER_H
+#define CSMA_STAR_HELPER_H
+
+#include <string>
+
+#include "csma-helper.h"
+#include "ipv4-address-helper.h"
+#include "internet-stack-helper.h"
+#include "ipv4-interface-container.h"
+
+namespace ns3 {
+  
+class CsmaStarHelper
+{
+public:
+  CsmaStarHelper (uint32_t numSpokes, 
+                  CsmaHelper csmaHelper);
+  ~CsmaStarHelper ();
+public:
+  Ptr<Node> GetHub () const;
+  Ptr<Node> GetSpoke (uint32_t) const;
+  NetDeviceContainer GetHubDevices () const;
+  NetDeviceContainer GetSpokeDevices () const;
+  Ipv4Address GetHubIpv4Address (uint32_t) const;
+  Ipv4Address GetSpokeIpv4Address (uint32_t) const;
+  uint32_t SpokeCount () const;
+  void InstallStack (InternetStackHelper stack);
+  void AssignIpv4Addresses (Ipv4AddressHelper address);
+
+private:
+  NodeContainer m_hub;
+  NetDeviceContainer m_hubDevices;
+  NodeContainer m_spokes;
+  NetDeviceContainer m_spokeDevices;
+  Ipv4InterfaceContainer m_hubInterfaces;
+  Ipv4InterfaceContainer m_spokeInterfaces;
+};
+}
+#endif
+
+