Which port of the router should the network cable be plugged into?

　　Which port of the router the network cable should be plugged into depends mainly on the purpose of the network cable and the type of router. Generally speaking, there are mainly the following ports on the router:

　　WAN port:This is a dedicated interface for accessing external networks. If the network cable is accessed from an extranet or a light cat, it needs to be plugged into this port. Through the WAN port, the router can connect to an external network (such as the Internet), allowing devices connected to the router to access the external network.

　　LAN port:These ports are used to connect devices in the local area network, such as computers, printers, SMart TVs, etc. If you need to connect the router to these devices, you need to use a network cable to connect the device's network interface to the router's LAN port. In this way, devices in the local area network can communicate with each other through the router and access external networks.

　　Other ports: Some high-end routers may also have other types of ports, such as USB ports, fiber optic ports, etc. These ports have specific uses and functions, but are less commonly used by general users.

　　When connecting a network cable, you need to pay attention to the following points:

　　Verify port type: Before plugging in the network cable, first confirm whether the type of network cable (e.g. RJ-45) matches the port type of the router.

　　Check the quality of the network cable: Using a good quality network cable can ensure the stability and speed of the network connection. It is recommended to use a network cable of Category 5 or higher standard.

　　Insert the network cable correctly: firmly insert the RJ-45 plug of the network cable into the corresponding port of the router to ensure a stable and reliable connection.

　　Configure the router: After connecting the network cable, the router needs to be configured accordingly, such as setting the Internet Protocol Address, subnet mask, default gateway, etc., to ensure that the device can access the network normally.

　　In summary, the network cable should be plugged into the WAN port or LAN port of the router, depending on the purpose of the network cable and the type of router. During the connection and configuration process, it is necessary to pay attention to details and security to ensure the stable and efficient operation of the network.