串口服务器要连上公网吗?无公网IP的终极解决方案,无公网IP环境下的串口服务器联网攻略
Does the serial port server need to be connected to the public network? The ultimate solution for no public IP address: A guide to networking serial servers in an environment without public IP addresses
以上为机器翻译结果，长、整句建议使用 人工翻译 。