# File lib/net/ssh/service/forward.rb, line 141
    def remote(port, host, remote_port, remote_host="127.0.0.1")
      session.send_global_request("tcpip-forward", :string, remote_host, :long, remote_port) do |success, response|
        if success
          remote_port = response.read_long if remote_port == 0
          debug { "remote forward from remote #{remote_host}:#{remote_port} to #{host}:#{port} established" }
          @remote_forwarded_ports[[remote_port, remote_host]] = Remote.new(host, port)
        else
          error { "remote forwarding request failed" }
          raise Net::SSH::Exception, "remote forwarding request failed"
        end
      end
    end