# HG changeset patch
# User Qasim Javed <qasimj@gmail.com>
# Date 1249536869 -21600
# Node ID b6d772135f4328880ee966097bca3c917c3d666f
# Parent  a4a59bd1ac1c1e20b5e36b3f31e7411fdb9a949e
Updated the NAT example (examples/netfilter-example.cc)

diff -r a4a59bd1ac1c -r b6d772135f43 examples/netfilter-example.cc
--- a/examples/netfilter-example.cc	Thu Aug 06 11:16:51 2009 +0600
+++ b/examples/netfilter-example.cc	Thu Aug 06 11:34:29 2009 +0600
@@ -21,6 +21,7 @@
 #include "ns3/global-route-manager.h"
 #include "ns3/on-off-helper.h"
 #include "ns3/v4ping-helper.h"
+#include "ns3/ipv4-l3-protocol.h"
 
 using namespace ns3;
 
@@ -61,45 +62,54 @@
   stack.Install (second.Get(1));
 
   Ipv4AddressHelper address1;
-  address1.SetBase ("10.1.1.0", "255.255.255.0");
+  address1.SetBase ("192.168.1.0", "255.255.255.0");
   
   Ipv4AddressHelper address2;
-  address2.SetBase ("10.2.2.0", "255.255.255.0");
+  address2.SetBase ("203.82.48.0", "255.255.255.0");
 
   Ipv4InterfaceContainer firstInterfaces = address1.Assign (devices1);
-  Ipv4InterfaceContainer rightInterfaces = address2.Assign (devices2);
+  Ipv4InterfaceContainer secondInterfaces = address2.Assign (devices2);
+
+  Ptr <Ipv4> ipv4 = first.Get (1)->GetObject<Ipv4> ();
+  std::cout << "Number of interfaces on node " << first.Get (1)->GetId () << ": " << ipv4->GetNInterfaces () << std::endl;
+
+  Ptr <Ipv4L3Protocol> ipv4L3 = DynamicCast <Ipv4L3Protocol>(first.Get (1)->GetObject<Ipv4> ());
+  Ipv4Netfilter *netfilter = ipv4L3->GetNetfilter ();
+  netfilter->EnableNat ();
+  std::cout << "Adding rule at node " << first.Get (1)->GetId () << ", device " << first.Get (1)->GetDevice (1)->GetIfIndex () << std::endl;
+  netfilter->AddNatRule ( NatRule (Ipv4Address ("192.168.1.1"), Ipv4Address ("203.82.48.1"), first.Get (1)->GetDevice (1)));
 
   UdpEchoServerHelper echoServer (9);
 
-  ApplicationContainer serverApps = echoServer.Install (first.Get (0));
+  ApplicationContainer serverApps = echoServer.Install (second.Get (1));
   serverApps.Start (Seconds (1.0));
   serverApps.Stop (Seconds (10.0));
 
-  UdpEchoClientHelper echoClient (firstInterfaces.GetAddress (0), 9);
+  UdpEchoClientHelper echoClient (secondInterfaces.GetAddress (1), 9);
   echoClient.SetAttribute ("MaxPackets", UintegerValue (1));
   echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.)));
-  echoClient.SetAttribute ("PacketSize", UintegerValue (1024));
+  echoClient.SetAttribute ("PacketSize", UintegerValue (512));
 
-  ApplicationContainer clientApps = echoClient.Install (second.Get (1));
+  ApplicationContainer clientApps = echoClient.Install (first.Get (0));
   clientApps.Start (Seconds (2.0));
   clientApps.Stop (Seconds (10.0));
 
   OnOffHelper onOff ( "ns3::TcpSocketFactory", 
-                      Address (InetSocketAddress ("10.1.1.1", port)));
+                      Address (InetSocketAddress ("192.168.1.1", port)));
   onOff.SetAttribute ("MaxBytes", UintegerValue (512));
 
   ApplicationContainer onOffApp = onOff.Install (second.Get (1));
 
   PacketSinkHelper packetSink ( "ns3::TcpSocketFactory",
-                                Address (InetSocketAddress ("10.1.1.1", port)));
+                                Address (InetSocketAddress ("192.168.1.1", port)));
 
   ApplicationContainer packetSinkApp = packetSink.Install (first.Get (0));
 
-  packetSinkApp.Start (Seconds (2.0));
+  /*packetSinkApp.Start (Seconds (2.0));
   packetSinkApp.Stop (Seconds (4.0));
 
   onOffApp.Start (Seconds (3.0));
-  onOffApp.Stop (Seconds (4.0));
+  onOffApp.Stop (Seconds (4.0));*/
 
   /*ApplicationContainer pingApp = ping.Install (first.Get (0));
   pingApp.Start (Seconds (3.0));