diff --git a/ChangeLog b/ChangeLog
index 39ee2723..ef1336e4 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -25,7 +25,8 @@ Michael Voigt
 
 2009-02-23 Stephane Letz  <letz@grame.fr>
 
-	* Another fix in systemdeps.h and types.h: jack_time_t now uniquely defined in types.h.
+	* Another fix in systemdeps.h and types.h: jack_time_t now uniquely defined in types.h.
+	* Move generic code and data in JackNetInterface and JackNetMasterInterface classes.
 
 2009-02-20 Stephane Letz  <letz@grame.fr>
 
diff --git a/common/JackNetInterface.cpp b/common/JackNetInterface.cpp
index bf238c53..299c4588 100644
--- a/common/JackNetInterface.cpp
+++ b/common/JackNetInterface.cpp
@@ -42,6 +42,8 @@ namespace Jack
         fNetAudioPlaybackBuffer = NULL;
         fNetMidiCaptureBuffer = NULL;
         fNetMidiPlaybackBuffer = NULL;
+        memset(&fSendTransportData, 0, sizeof(net_transport_data_t));
+        memset(&fReturnTransportData, 0, sizeof(net_transport_data_t));
     }
 
     JackNetInterface::JackNetInterface ( const char* multicast_ip, int port ) : fSocket ( multicast_ip, port )
@@ -53,6 +55,8 @@ namespace Jack
         fNetAudioPlaybackBuffer = NULL;
         fNetMidiCaptureBuffer = NULL;
         fNetMidiPlaybackBuffer = NULL;
+        memset(&fSendTransportData, 0, sizeof(net_transport_data_t));
+        memset(&fReturnTransportData, 0, sizeof(net_transport_data_t));
     }
 
     JackNetInterface::JackNetInterface ( session_params_t& params, JackNetSocket& socket, const char* multicast_ip ) : fSocket ( socket )
@@ -65,6 +69,8 @@ namespace Jack
         fNetAudioPlaybackBuffer = NULL;
         fNetMidiCaptureBuffer = NULL;
         fNetMidiPlaybackBuffer = NULL;
+        memset(&fSendTransportData, 0, sizeof(net_transport_data_t));
+        memset(&fReturnTransportData, 0, sizeof(net_transport_data_t));
     }
 
     JackNetInterface::~JackNetInterface()
@@ -558,6 +564,41 @@ namespace Jack
         }
         return rx_bytes;
     }
+    
+    int JackNetMasterInterface::EncodeSyncPacket()
+    {
+        //this method contains every step of sync packet informations coding
+        //first of all, reset sync packet
+        memset ( fTxData, 0, fPayloadSize );
+
+        //then, first step : transport
+        if ( fParams.fTransportSync )
+        {
+            if ( EncodeTransportData() < 0 )
+                return -1;
+            //copy to TxBuffer
+            memcpy ( fTxData, &fSendTransportData, sizeof ( net_transport_data_t ) );
+        }
+        //then others (freewheel etc.)
+        //...
+        return 0;
+    }
+
+    int JackNetMasterInterface::DecodeSyncPacket()
+    {
+        //this method contains every step of sync packet informations decoding process
+        //first : transport
+        if ( fParams.fTransportSync )
+        {
+            //copy received transport data to transport data structure
+            memcpy ( &fReturnTransportData, fRxData, sizeof ( net_transport_data_t ) );
+            if ( DecodeTransportData() < 0 )
+                return -1;
+        }
+        //then others
+        //...
+        return 0;
+    }
 
 // JackNetSlaveInterface ************************************************************************************************
 
diff --git a/common/JackNetInterface.h b/common/JackNetInterface.h
index 40617a16..9d2c95c2 100644
--- a/common/JackNetInterface.h
+++ b/common/JackNetInterface.h
@@ -40,6 +40,10 @@ namespace Jack
             //headers
             packet_header_t fTxHeader;
             packet_header_t fRxHeader;
+            
+            // transport
+            net_transport_data_t fSendTransportData;
+            net_transport_data_t fReturnTransportData;
 
             //network buffers
             char* fTxBuffer;
@@ -105,11 +109,18 @@ namespace Jack
             bool Init();
             int SetRxTimeout();
             void SetParams();
+            
             void Exit();
+            
             int SyncRecv();
             int SyncSend();
+            
             int DataRecv();
             int DataSend();
+            
+             //sync packet
+            int EncodeSyncPacket();
+            int DecodeSyncPacket();
 
             int Send ( size_t size, int flags );
             int Recv ( size_t size, int flags );
@@ -135,10 +146,7 @@ namespace Jack
         protected:
         
             static uint fSlaveCounter;
-            
-            net_transport_data_t fSendTransportData;
-            net_transport_data_t fReturnTransportData;
-
+       
             bool Init();
             bool InitConnection();
             bool InitRendering();
diff --git a/common/JackNetManager.cpp b/common/JackNetManager.cpp
index a30b77e6..b935d252 100644
--- a/common/JackNetManager.cpp
+++ b/common/JackNetManager.cpp
@@ -343,41 +343,7 @@ namespace Jack
     }
 
 //sync--------------------------------------------------------------------------------
-    int JackNetMaster::EncodeSyncPacket()
-    {
-        //this method contains every step of sync packet informations coding
-        //first of all, reset sync packet
-        memset ( fTxData, 0, fPayloadSize );
-
-        //then, first step : transport
-        if ( fParams.fTransportSync )
-        {
-            if ( EncodeTransportData() < 0 )
-                return -1;
-            //copy to TxBuffer
-            memcpy ( fTxData, &fSendTransportData, sizeof ( net_transport_data_t ) );
-        }
-        //then others (freewheel etc.)
-        //...
-        return 0;
-    }
-
-    int JackNetMaster::DecodeSyncPacket()
-    {
-        //this method contains every step of sync packet informations decoding process
-        //first : transport
-        if ( fParams.fTransportSync )
-        {
-            //copy received transport data to transport data structure
-            memcpy ( &fReturnTransportData, fRxData, sizeof ( net_transport_data_t ) );
-            if ( DecodeTransportData() < 0 )
-                return -1;
-        }
-        //then others
-        //...
-        return 0;
-    }
-
+ 
     bool JackNetMaster::IsSlaveReadyToRoll()
     {
         return ( fReturnTransportData.fState == JackTransportNetStarting );
diff --git a/common/JackNetManager.h b/common/JackNetManager.h
index a9cb8a37..9d748d34 100644
--- a/common/JackNetManager.h
+++ b/common/JackNetManager.h
@@ -71,10 +71,6 @@ namespace Jack
             int EncodeTransportData();
             int DecodeTransportData();
 
-            //sync packet
-            int EncodeSyncPacket();
-            int DecodeSyncPacket();
-
             int Process();
             void TimebaseCallback ( jack_position_t* pos );