diff --git a/bindings/python/wscript b/bindings/python/wscript
index 8b1272ac7..9b37f64a7 100644
--- a/bindings/python/wscript
+++ b/bindings/python/wscript
@@ -22,7 +22,7 @@ else:
     os.environ['PYTHONPATH'] = LOCAL_PYBINDGEN_PATH
 
 ## https://launchpad.net/pybindgen/
-REQUIRED_PYBINDGEN_VERSION = (0, 9, 0, 593)
+REQUIRED_PYBINDGEN_VERSION = (0, 9, 0, 595)
 REQUIRED_PYGCCXML_VERSION = (0, 9, 5)
 
 
diff --git a/src/common/packet.cc b/src/common/packet.cc
index cda5fbe8e..f2ba95ea8 100644
--- a/src/common/packet.cc
+++ b/src/common/packet.cc
@@ -200,7 +200,7 @@ Packet::RemoveHeader (Header &header)
   return deserialized;
 }
 uint32_t
-Packet::PeekHeader (Header &header)
+Packet::PeekHeader (Header &header) const
 {
   NS_LOG_FUNCTION (this << &header);
   uint32_t deserialized = header.Deserialize (m_buffer.Begin ());
diff --git a/src/common/packet.h b/src/common/packet.h
index 428297028..454da94b6 100644
--- a/src/common/packet.h
+++ b/src/common/packet.h
@@ -210,7 +210,7 @@ public:
    * \param header a reference to the header to read from the internal buffer.
    * \returns the number of bytes read from the packet.
    */  
-  uint32_t PeekHeader (Header &header);
+  uint32_t PeekHeader (Header &header) const;
   /**
    * Add trailer to this packet. This method invokes the
    * Trailer::GetSerializedSize and Trailer::Serialize
diff --git a/src/devices/wifi/adhoc-wifi-mac.cc b/src/devices/wifi/adhoc-wifi-mac.cc
index f0194f56d..1c7df1e9d 100644
--- a/src/devices/wifi/adhoc-wifi-mac.cc
+++ b/src/devices/wifi/adhoc-wifi-mac.cc
@@ -180,14 +180,15 @@ AdhocWifiMac::GetSsid (void) const
 Mac48Address 
 AdhocWifiMac::GetBssid (void) const
 {
-  // XXX the bssid should be generated by the procedure
-  // described in ieee802.11 section 11.1.3
-  return Mac48Address::GetBroadcast ();
+  return m_low->GetBssid ();
 }
 void 
 AdhocWifiMac::SetAddress (Mac48Address address)
 {
   m_low->SetAddress (address);
+  m_low->SetBssid (address);
+  // XXX the bssid should be generated by the procedure
+  // described in ieee802.11 section 11.1.3
 }
 void 
 AdhocWifiMac::SetSsid (Ssid ssid)
diff --git a/src/devices/wifi/adhoc-wifi-mac.h b/src/devices/wifi/adhoc-wifi-mac.h
index 5805ae709..d5d5f4b44 100644
--- a/src/devices/wifi/adhoc-wifi-mac.h
+++ b/src/devices/wifi/adhoc-wifi-mac.h
@@ -77,7 +77,7 @@ public:
   virtual Ssid GetSsid (void) const;
   virtual void SetAddress (Mac48Address address);
   virtual void SetSsid (Ssid ssid);
-
+  virtual Mac48Address GetBssid (void) const;
 
 private:
   // inherited from Object base class.
@@ -86,7 +86,6 @@ private:
   void ForwardUp (Ptr<Packet> packet, WifiMacHeader const*hdr);
   AdhocWifiMac (const AdhocWifiMac & ctor_arg);
   AdhocWifiMac &operator = (const AdhocWifiMac &o);
-  Mac48Address GetBssid (void) const;
 
   Ptr<DcaTxop> m_dca;
   Callback<void,Ptr<Packet>, Mac48Address, Mac48Address> m_upCallback;
diff --git a/src/devices/wifi/nqap-wifi-mac.cc b/src/devices/wifi/nqap-wifi-mac.cc
index a79cd7200..8d4f61c4c 100644
--- a/src/devices/wifi/nqap-wifi-mac.cc
+++ b/src/devices/wifi/nqap-wifi-mac.cc
@@ -49,7 +49,7 @@ NqapWifiMac::GetTypeId (void)
                                      &NqapWifiMac::SetBeaconInterval),
                    MakeTimeChecker ())
     .AddAttribute ("BeaconGeneration", "Whether or not beacons are generated.",
-                   BooleanValue (false),
+                   BooleanValue (true),
                    MakeBooleanAccessor (&NqapWifiMac::SetBeaconGeneration,
                                         &NqapWifiMac::GetBeaconGeneration),
                    MakeBooleanChecker ())
@@ -251,6 +251,11 @@ NqapWifiMac::SetSsid (Ssid ssid)
   NS_LOG_FUNCTION (ssid);
   m_ssid = ssid;
 }
+Mac48Address 
+NqapWifiMac::GetBssid (void) const
+{
+  return m_low->GetBssid ();
+}
 
 
 void 
diff --git a/src/devices/wifi/nqap-wifi-mac.h b/src/devices/wifi/nqap-wifi-mac.h
index 5b1948255..496342df6 100644
--- a/src/devices/wifi/nqap-wifi-mac.h
+++ b/src/devices/wifi/nqap-wifi-mac.h
@@ -83,7 +83,7 @@ public:
   virtual Ssid GetSsid (void) const;
   virtual void SetAddress (Mac48Address address);
   virtual void SetSsid (Ssid ssid);
-
+  virtual Mac48Address GetBssid (void) const;
 
   /**
    * \param interval the interval between two beacon transmissions.
diff --git a/src/devices/wifi/nqsta-wifi-mac.cc b/src/devices/wifi/nqsta-wifi-mac.cc
index aec3e65b9..1b956b4ca 100644
--- a/src/devices/wifi/nqsta-wifi-mac.cc
+++ b/src/devices/wifi/nqsta-wifi-mac.cc
@@ -248,7 +248,6 @@ NqstaWifiMac::SetSsid (Ssid ssid)
   NS_LOG_FUNCTION (this << ssid);
   m_ssid = ssid;
 }
-
 void 
 NqstaWifiMac::SetMaxMissedBeacons (uint32_t missed)
 {
diff --git a/src/devices/wifi/nqsta-wifi-mac.h b/src/devices/wifi/nqsta-wifi-mac.h
index 16e2064c4..5408d0429 100644
--- a/src/devices/wifi/nqsta-wifi-mac.h
+++ b/src/devices/wifi/nqsta-wifi-mac.h
@@ -83,7 +83,7 @@ public:
   virtual Ssid GetSsid (void) const;
   virtual void SetAddress (Mac48Address address);
   virtual void SetSsid (Ssid ssid);
-
+  virtual Mac48Address GetBssid (void) const;
 
   /**
    * \param missed the number of beacons which must be missed
@@ -126,7 +126,6 @@ private:
   void MissedBeacons (void);
   void RestartBeaconWatchdog (Time delay);
   SupportedRates GetSupportedRates (void) const;
-  Mac48Address GetBssid (void) const;
   virtual void DoDispose (void);
   NqstaWifiMac (const NqstaWifiMac & ctor_arg);
   NqstaWifiMac &operator = (const NqstaWifiMac & ctor_arg);
diff --git a/src/devices/wifi/wifi-mac.h b/src/devices/wifi/wifi-mac.h
index 47a4f6076..3c9112b22 100644
--- a/src/devices/wifi/wifi-mac.h
+++ b/src/devices/wifi/wifi-mac.h
@@ -129,6 +129,10 @@ public:
    * \param ssid the current ssid of this MAC layer.
    */
   virtual void SetSsid (Ssid ssid) = 0;
+  /**
+   * \returns the bssid of the network this device belongs to.
+   */
+  virtual Mac48Address GetBssid (void) const = 0;
 
 private:
   friend class WifiNetDevice;