code: def _connected(self):
          
          self._auth_properties['remote-ip'] = self._dst_addr[0]
          if self._dst_service:
              self._auth_properties['service-domain'] = self._dst_name
          if self._dst_hostname is not None:
              self._auth_properties['service-hostname'] = self._dst_hostname
          else:
              self._auth_properties['service-hostname'] = self._dst_addr[0]
          self._auth_properties['security-layer'] = None
          self.event(ConnectedEvent(self._dst_addr))
          self._set_state("connected")
          self._stream.transport_connected()
docs: Handle connection success.