diff --git a/__init__.py b/__init__.py
index 8b7f844..8433918 100644
--- a/__init__.py
+++ b/__init__.py
@@ -180,8 +180,9 @@ class struct_json_protocol(object):
                          AUTH_STATE_KEY_TRANSFERRED: 'Key has been sent',
                          AUTH_STATE_TRUSTED_CLIENT: 'Trusted Client'}
 
-    def __init__(self, comm_instance, secret=None):
+    def __init__(self, comm_instance, secret=None, auto_auth=False):
         self.__secret__ = secret
+        self.__auto_auth__ = auto_auth
         self.__clean_receive_buffer__()
         self.__callbacks__ = callback_storage()
         self.__callbacks__.add(self.SID_AUTH_SEED_REQUEST, 0, self.__authentificate_create_seed__)
@@ -192,7 +193,7 @@ class struct_json_protocol(object):
         self.__seed__ = None
         self.__comm_inst__ = comm_instance
         self.__comm_inst__.register_callback(self.__data_available_callback__)
-        self.__comm_inst__.register_connect_callback(self.__clean_receive_buffer__)
+        self.__comm_inst__.register_connect_callback(self.__connection_established__)
         self.__comm_inst__.register_disconnect_callback(self.__authentification_state_reset__)
 
     def is_connected(self):
@@ -201,6 +202,11 @@ class struct_json_protocol(object):
     def reconnect(self):
         return self.__comm_inst__.reconnect()
 
+    def __connection_established__(self):
+        self.__clean_receive_buffer__()
+        if self.__auto_auth__ and self.__comm_inst__.IS_CLIENT and self.__secret__ is not None:
+            self.authentificate()
+
     def __authentification_state_reset__(self):
         logger.info("%s Resetting authentification state to AUTH_STATE_UNKNOWN_CLIENT", self.LOG_PREFIX)
         self.__authentification_state__ = self.AUTH_STATE_UNKNOWN_CLIENT
@@ -468,8 +474,8 @@ class pure_json_protocol(struct_json_protocol):
 
     .. literalinclude:: ../../socket_protocol/_examples_/socket_protocol__pure_json_protocol_client.log
     """
-    def __init__(self, comm_instance, secret=None):
-        struct_json_protocol.__init__(self, comm_instance, secret)
+    def __init__(self, *args, **kwargs):
+        struct_json_protocol.__init__(self, *args, **kwargs)
 
     def __build_frame__(self, service_id, data_id, data, status=struct_json_protocol.STATUS_OKAY):
         data_frame = json.dumps(self.__mk_msg__(status, service_id, data_id, data))