In a computer, a network card and a local connection, not only one IP can be set in IPv4, but also multiple IP addresses (legal intranet IP or extranet IP) can be set.

Your router can be set up like this:

1. Connect the WAN port of your router with the incoming line of China Unicom (if it is a network interface), log in to the router management interface, and set the dial-up account of the WAN port. The local area network is set to 192. 168. 1.

2. Connect the network cable on the wall of your school dormitory to any LAN port of your router (suppose it is LAN 1), and then connect the network cable of your computer to LAN 2；;

3. Set the IP of the local connection of the computer to192.168.108.100, and fill in 192. 168.5438+0 for the gateway, and then in the advanced settings.