# File lib/net/ssh/transport/session.rb, line 83
    def host_as_string
      @host_as_string ||= begin
        string = "#{host}"
        string = "[#{string}]:#{port}" if port != DEFAULT_PORT
        if socket.peer_ip != host
          string2 = socket.peer_ip
          string2 = "[#{string2}]:#{port}" if port != DEFAULT_PORT
          string << "," << string2
        end
        string
      end
    end