diff -r fe4800b06445 src/internet-stack/ipv4-raw-socket-impl.cc
--- a/src/internet-stack/ipv4-raw-socket-impl.cc	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/ipv4-raw-socket-impl.cc	Tue Jun 15 11:33:21 2010 +0100
@@ -1,3 +1,4 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
 #include <netinet/in.h>
 #include "ipv4-raw-socket-impl.h"
 #include "ipv4-l3-protocol.h"
@@ -323,4 +324,19 @@
   return false;
 }
 
+void
+Ipv4RawSocketImpl::SetAllowBroadcast (bool allowBroadcast)
+{
+  if (!allowBroadcast)
+    {
+      NS_FATAL_ERROR ("not implemented");
+    }
+}
+
+bool
+Ipv4RawSocketImpl::GetAllowBroadcast () const
+{
+  return true;
+}
+
 } // namespace ns3
diff -r fe4800b06445 src/internet-stack/ipv4-raw-socket-impl.h
--- a/src/internet-stack/ipv4-raw-socket-impl.h	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/ipv4-raw-socket-impl.h	Tue Jun 15 11:33:21 2010 +0100
@@ -1,3 +1,4 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
 #ifndef IPV4_RAW_SOCKET_IMPL_H
 #define IPV4_RAW_SOCKET_IMPL_H
 
@@ -41,6 +42,9 @@
 
   void SetProtocol (uint16_t protocol);
   bool ForwardUp (Ptr<const Packet> p, Ipv4Header ipHeader, Ptr<NetDevice> device);
+  virtual void SetAllowBroadcast (bool allowBroadcast);
+  virtual bool GetAllowBroadcast () const;
+
 private:
   virtual void DoDispose (void);
 
diff -r fe4800b06445 src/internet-stack/ipv6-raw-socket-impl.cc
--- a/src/internet-stack/ipv6-raw-socket-impl.cc	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/ipv6-raw-socket-impl.cc	Tue Jun 15 11:33:21 2010 +0100
@@ -337,5 +337,20 @@
   return false;
 }
 
+void
+Ipv6RawSocketImpl::SetAllowBroadcast (bool allowBroadcast)
+{
+  if (!allowBroadcast) 
+    {
+      NS_FATAL_ERROR ("not implemented");
+    }
+}
+
+bool
+Ipv6RawSocketImpl::GetAllowBroadcast () const
+{
+  return true;
+}
+
 } /* namespace ns3 */
 
diff -r fe4800b06445 src/internet-stack/ipv6-raw-socket-impl.h
--- a/src/internet-stack/ipv6-raw-socket-impl.h	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/ipv6-raw-socket-impl.h	Tue Jun 15 11:33:21 2010 +0100
@@ -186,6 +186,9 @@
    */
   bool ForwardUp (Ptr<const Packet> p, Ipv6Header hdr, Ptr<NetDevice> device);
 
+  virtual void SetAllowBroadcast (bool allowBroadcast);
+  virtual bool GetAllowBroadcast () const;
+
 private:
   /**
    * \struct Data
diff -r fe4800b06445 src/internet-stack/nsc-tcp-socket-impl.cc
--- a/src/internet-stack/nsc-tcp-socket-impl.cc	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/nsc-tcp-socket-impl.cc	Tue Jun 15 11:33:21 2010 +0100
@@ -818,4 +818,19 @@
   return ERROR_INVAL;
 }
 
+void
+NscTcpSocketImpl::SetAllowBroadcast (bool allowBroadcast)
+{
+  if (allowBroadcast)
+    {
+      NS_FATAL_ERROR ("not implemented");
+    }
+}
+
+bool
+NscTcpSocketImpl::GetAllowBroadcast () const
+{
+  return false;
+}
+
 }//namespace ns3
diff -r fe4800b06445 src/internet-stack/nsc-tcp-socket-impl.h
--- a/src/internet-stack/nsc-tcp-socket-impl.h	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/nsc-tcp-socket-impl.h	Tue Jun 15 11:33:21 2010 +0100
@@ -82,6 +82,8 @@
   virtual Ptr<Packet> RecvFrom (uint32_t maxSize, uint32_t flags,
     Address &fromAddress);
   virtual int GetSockName (Address &address) const; 
+  virtual void SetAllowBroadcast (bool allowBroadcast);
+  virtual bool GetAllowBroadcast () const;
 
 private:
   void NSCWakeup(void);
diff -r fe4800b06445 src/internet-stack/tcp-socket-impl.cc
--- a/src/internet-stack/tcp-socket-impl.cc	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/tcp-socket-impl.cc	Tue Jun 15 11:33:21 2010 +0100
@@ -1855,6 +1855,18 @@
   return m_delAckMaxCount;
 }
 
+void
+TcpSocketImpl::SetAllowBroadcast (bool allowBroadcast)
+{
+  NS_FATAL_ERROR ("not implemented");
+}
+
+bool
+TcpSocketImpl::GetAllowBroadcast () const
+{
+  return false;
+}
+
 }//namespace ns3
 
 
diff -r fe4800b06445 src/internet-stack/tcp-socket-impl.h
--- a/src/internet-stack/tcp-socket-impl.h	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/tcp-socket-impl.h	Tue Jun 15 11:33:21 2010 +0100
@@ -96,6 +96,8 @@
     Address &fromAddress);
   virtual int GetSockName (Address &address) const; 
   virtual void BindToNetDevice (Ptr<NetDevice> netdevice);
+  virtual void SetAllowBroadcast (bool allowBroadcast);
+  virtual bool GetAllowBroadcast () const;
 
 private:
   friend class Tcp;
diff -r fe4800b06445 src/internet-stack/udp-socket-impl.cc
--- a/src/internet-stack/udp-socket-impl.cc	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/udp-socket-impl.cc	Tue Jun 15 11:33:21 2010 +0100
@@ -703,5 +703,20 @@
   return m_mtuDiscover;
 }
 
+void
+UdpSocketImpl::SetAllowBroadcast (bool allowBroadcast)
+{
+  if (!allowBroadcast)
+    {
+      NS_FATAL_ERROR ("not implemented");
+    }
+}
+
+bool
+UdpSocketImpl::GetAllowBroadcast () const
+{
+  return true;
+}
+
 
 } //namespace ns3
diff -r fe4800b06445 src/internet-stack/udp-socket-impl.h
--- a/src/internet-stack/udp-socket-impl.h	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/internet-stack/udp-socket-impl.h	Tue Jun 15 11:33:21 2010 +0100
@@ -78,6 +78,8 @@
   virtual int MulticastJoinGroup (uint32_t interfaceIndex, const Address &groupAddress);
   virtual int MulticastLeaveGroup (uint32_t interfaceIndex, const Address &groupAddress);
   virtual void BindToNetDevice (Ptr<NetDevice> netdevice);
+  virtual void SetAllowBroadcast (bool allowBroadcast);
+  virtual bool GetAllowBroadcast () const;
 
 private:
   // Attributes set through UdpSocket base class 
diff -r fe4800b06445 src/node/socket.h
--- a/src/node/socket.h	Thu Jun 10 11:45:16 2010 +0530
+++ b/src/node/socket.h	Tue Jun 15 11:33:21 2010 +0100
@@ -546,6 +546,30 @@
    * \returns Pointer to interface.
    */
   Ptr<NetDevice> GetBoundNetDevice (); 
+
+
+  /**
+   * \brief Configure whether broadcast datagram transmissions are allowed
+   *
+   * This method corresponds to using setsockopt() SO_BROADCAST of
+   * real network or BSD sockets.  If set on a socket, this option
+   * will enable or disable packets to be transmitted to broadcast
+   * destination addresses.
+   *
+   * \param allowBroadcast Whether broadcast is allowed
+   */
+  virtual void SetAllowBroadcast (bool allowBroadcast) = 0;
+
+  /**
+   * \brief Query whether broadcast datagram transmissions are allowed
+   *
+   * This method corresponds to using getsockopt() SO_BROADCAST of
+   * real network or BSD sockets.
+   *
+   * \returns true if broadcast is allowed, false otherwise
+   */
+  virtual bool GetAllowBroadcast () const = 0;
+
  
 protected:
   void NotifyConnectionSucceeded (void);