(Mikrotikrouteros is a routing operating system, which turns standard PC into a professional router through the software. It has been constantly updated and developed in the development and application of software Routeros soft routing graph. The software has undergone many updates and improvements, making its functions continuously enhanced and improved. Especially in wireless, authentication, policy routing, bandwidth control, firewall filtering and other functions, it has a very prominent function. Its high cost performance has been favored by many network people.)