OnOffApplication Packet Sink not working

[Trail Error]

I am trying to generate traffic at one node using on-off application and receive it at another node. But, the flow monitor says, the same node is transmitting and receiving the data. Where did I go wrong? The following is my code snippet:

uint16_t port = 29;   // Discard port (RFC 863)
    Config::SetDefault ("ns3::OnOffApplication::PacketSize", UintegerValue (210));
    Config::SetDefault ("ns3::OnOffApplication::DataRate", StringValue ("448kb/s"));
    Config::SetDefault ("ns3::OnOffApplication::OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=0.1]"));
    Config::SetDefault ("ns3::OnOffApplication::OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=0.3]"));

  OnOffHelper onoff ("ns3::UdpSocketFactory", Address (InetSocketAddress (enbInterfaces.GetAddress (0,0), port)));
    ApplicationContainer apps = onoff.Install (enbNode.Get (0));
    apps.Start (Seconds (0.0));
    apps.Stop (Seconds (10.0));
   
    // Create a packet sink to receive these packets
  uint16_t sinkPort = 19;
  // Address m_sinkAddress (InetSocketAddress (ueInterfaces.GetAddress (0), sinkPort));
    PacketSinkHelper sink ("ns3::UdpSocketFactory", Address (InetSocketAddress (Ipv4Address::GetAny (), sinkPort))); //Ipv4Address::GetAny () //ueInterfaces.GetAddress(0)
    ApplicationContainer appSink = sink.Install (ueNode.Get (0));
    appSink.Start (Seconds (0.0));
  appSink.Stop (Seconds (10.0));

Flow Monitor gives this:

Flow 2 (10.1.3.4 -> 10.1.3.4)
  Tx Bytes:   158508
  Rx Bytes:   158508
  Throughput: 0.120932 Mbps

I have attached my full file also.

[Muhammad Talha Jahangir]

U install onoff application and sink application on same node

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