if (endP->GetBoundNetDevice ())

        {

          if (endP->GetBoundNetDevice () != incomingInterface->GetDevice ())

            {

              NS_LOG_LOGIC ("Skipping endpoint " << &endP

                                                 << " because endpoint is bound to specific device and"

                                                 << endP->GetBoundNetDevice ()

                                                 << " does not match packet device " << incomingInterface->GetDevice ());

              continue;

            }

        }

void Ipv6EndPoint::BindToNetDevice (Ptr<NetDevice> netdevice)

{

  m_boundnetdevice = netdevice;

  return;

}

Ptr<NetDevice> Ipv6EndPoint::GetBoundNetDevice (void)

{

  return m_boundnetdevice;

}

#include "ns3/net-device.h"

   * \brief Bind a socket to specific device.

   *

   * This method corresponds to using setsockopt() SO_BINDTODEVICE

   * of real network or BSD sockets.   If set on a socket, this option will

   * force packets to leave the bound device regardless of the device that

   * IP routing would naturally choose.  In the receive direction, only

   * packets received from the bound interface will be delivered.

   *

   * This option has no particular relationship to binding sockets to

   * an address via Socket::Bind ().  It is possible to bind sockets to a

   * specific IP address on the bound interface by calling both

   * Socket::Bind (address) and Socket::BindToNetDevice (device), but it

   * is also possible to bind to mismatching device and address, even if

   * the socket can not receive any packets as a result.

   *

   * \param netdevice Pointer to Netdevice of desired interface

   * \returns nothing

   */

  void BindToNetDevice (Ptr<NetDevice> netdevice);

  /**

   * \brief Returns socket's bound netdevice, if any.

   *

   * This method corresponds to using getsockopt() SO_BINDTODEVICE

   * of real network or BSD sockets.

   *

   *

   * \returns Pointer to interface.

   */

  Ptr<NetDevice> GetBoundNetDevice (void);

  /**

   * \brief The NetDevice the EndPoint is bound to (if any).

   */

  Ptr<NetDevice> m_boundnetdevice;

  /**

  Ptr<NetDevice> boundNetDevice = Socket::GetBoundNetDevice();

  if (boundNetDevice)

    {

      if (boundNetDevice != device)

        {

          return false;

        }

    }