1.1 --- a/src/devices/virtual-net-device/virtual-net-device.cc	Tue Jun 09 17:48:51 2009 +0100
     1.2 +++ b/src/devices/virtual-net-device/virtual-net-device.cc	Tue Jun 09 18:00:24 2009 +0100
     1.3 @@ -54,6 +54,7 @@
     1.4    m_needsArp = false;
     1.5    m_supportsSendFrom = true;
     1.6    m_mtu = 65535;
     1.7 +  m_isPointToPoint = true;
     1.8  }
     1.9  
    1.10  
    1.11 @@ -75,6 +76,12 @@
    1.12    m_supportsSendFrom = supportsSendFrom;
    1.13  }
    1.14  
    1.15 +void
    1.16 +VirtualNetDevice::SetIsPointToPoint (bool isPointToPoint)
    1.17 +{
    1.18 +  m_isPointToPoint = isPointToPoint;
    1.19 +}
    1.20 +
    1.21  bool
    1.22  VirtualNetDevice::SetMtu (const uint16_t mtu)
    1.23  {
    1.24 @@ -193,7 +200,7 @@
    1.25  bool
    1.26  VirtualNetDevice::IsPointToPoint (void) const
    1.27  {
    1.28 -  return true;
    1.29 +  return m_isPointToPoint;
    1.30  }
    1.31  
    1.32  bool

     2.1 --- a/src/devices/virtual-net-device/virtual-net-device.h	Tue Jun 09 17:48:51 2009 +0100
     2.2 +++ b/src/devices/virtual-net-device/virtual-net-device.h	Tue Jun 09 18:00:24 2009 +0100
     2.3 @@ -34,7 +34,7 @@
     2.4  
     2.5  /**
     2.6   * \class VirtualNetDevice
     2.7 - * \brief A virtual device, similar to Linux TAP interfaces.
     2.8 + * \brief A virtual device, similar to Linux TUN/TAP interfaces.
     2.9   *
    2.10   * A VirtualNetDevice is a "virtual" NetDevice implementation which
    2.11   * delegates to a user callback (see method SetSendFromCallback()) the
    2.12 @@ -42,7 +42,7 @@
    2.13   * code to inject the packet as if it had been received by the
    2.14   * VirtualNetDevice.  Together, these features allow one to build tunnels.
    2.15   * For instance, by transmitting packets into a UDP socket we end up
    2.16 - * building an IP-over-UDP-over-IP tunnel.
    2.17 + * building an IP-over-UDP-over-IP tunnel, or IP-over-IP tunnels.
    2.18   *
    2.19   * The same thing could be accomplished by subclassing NetDevice
    2.20   * directly.  However, VirtualNetDevice is usually much simpler to program
    2.21 @@ -78,6 +78,14 @@
    2.22    void SetNeedsArp (bool needsArp);
    2.23  
    2.24    /**
    2.25 +   * \brief Configure whether the virtual device is point-to-point
    2.26 +   *
    2.27 +   * \param isPointToPoint the value that should be returned by the
    2.28 +   * IsPointToPoint method for this instance.
    2.29 +   */
    2.30 +  void SetIsPointToPoint (bool isPointToPoint);
    2.31 +
    2.32 +  /**
    2.33     * \brief Configure whether the virtual device supports SendFrom
    2.34     */
    2.35    void SetSupportsSendFrom (bool supportsSendFrom);
    2.36 @@ -160,6 +168,7 @@
    2.37    uint16_t m_mtu;
    2.38    bool m_needsArp;
    2.39    bool m_supportsSendFrom;
    2.40 +  bool m_isPointToPoint;
    2.41  };
    2.42  
    2.43  }; // namespace ns3