gistfile1.rb

device ||= Net::SSH::Telnet.new("Host" => "192.168.0.2",
                                    "Dump_log" => "dump_log3",
                                    "Username" => "admn",
                                    "Password" => "",
                                    "Timeout" => 60000,
                                    "Prompt" => /^CMD>$/)
device.cmd(params[:cmd]) {|c| $output << c}