on_open (Net::SSH::Service::Forward::RemoteNetworkHandler)

    # File lib/net/ssh/service/forward/remote-network-handler.rb, line 40
              def on_open( channel, c_addr, c_port, o_addr, o_port )
                @client = TCPSocket.new( @local_host, @local_port )

                Thread.new do
                  begin
                    loop do
                      break if channel[:eof]
                      data = ""
                      while IO.select([@client],nil,nil,0.01)
                        data << @client.recv(@block_size)
                      end
                      channel.send_data data unless data.empty?
                    end
                  rescue Exception => e
                    @log.error "error while forwarding remote port: " +
                      "#{e.class}: #{e.message}\n  " +
                      e.backtrace.join( "\n  " )
                  ensure
                    channel.close
                  end
                end
              end