How to set Destination on ns3

[non]

Hello mate

I have a question for routing.

Now I'm try to modify destination on aodv.

So I add "SetDestination".

But it isn's work.

Could you help me?

If it is wrong, is there any other way to change the destination?

Thank you.

-----------code(aodv-routing-protocol.cc)-----------

bool

RoutingProtocol::RouteInput (Ptr<const Packet> p, const Ipv4Header &header,

                             Ptr<const NetDevice> idev, UnicastForwardCallback ucb,

                             MulticastForwardCallback mcb, LocalDeliverCallback lcb, ErrorCallback ecb)

{

  NS_LOG_FUNCTION (this << p->GetUid () << header.GetDestination () << idev->GetAddress ());

  if (m_socketAddresses.empty ())

    {

      NS_LOG_LOGIC ("No aodv interfaces");

      return false;

    }

  NS_ASSERT (m_ipv4 != 0);

  NS_ASSERT (p != 0);

  // Check if input device supports IP

  NS_ASSERT (m_ipv4->GetInterfaceForDevice (idev) >= 0);

  int32_t iif = m_ipv4->GetInterfaceForDevice (idev);

  Ipv4Address dst = header.GetDestination ();

  Ipv4Address origin = header.GetSource ();

  // Deferred route request　

  if (idev == m_lo)

    {

      DeferredRouteOutputTag tag;

      if (p->PeekPacketTag (tag))

        {

        //Add

        header.SetDestination ("10.1.1.4");

          DeferredRouteOutput (p, header, ucb, ecb);

          return true;

        }

    }

-----error-------

../src/aodv/model/aodv-routing-protocol.cc:471:9: error: 'this' argument to member function 'SetDestination' has type 'const ns3::Ipv4Header', but function is not marked const

        header.SetDestination ("10.1.1.4");

        ^~~~~~

./ns3/ipv4-header.h:160:8: note: 'SetDestination' declared here

  void SetDestination (Ipv4Address destination);

       ^

1 warning and 1 error generated.

[pdbarnes]

The header argument is const, so you can’t modify it. You’ll have to copy it and modify the copy.

Peter

[non]

Ok, I understood.

Thank you very much Peter.

And I implemented it as follows.

------source(aodv-routing-protocol.cc)-------

          //Add

          Ipv4Header header2 = header;

          header2.SetSource (origin);

          header2.SetDestination ("10.1.1.17");

          DeferredRouteOutput (p, header2, ucb, ecb);

2018年11月15日木曜日 0時14分15秒 UTC+9 pdbarnes: