According to IP address allocation mode, Internet access mode can be divided into DHCP mode and static fixed IP mode. DHCP mode means that the computer automatically obtains the IP address. In fact, DHCP server (some routers and switches have this function) dynamically assigns an IP address to users according to the current network situation. When a user shuts down or disconnects from the network, the DHCP server will take back the IP address and redistribute it when the next user uses it. Usually, it is used in large networks. The advantage is that it is difficult to make rational use of IP address resources for management (both public and intranet IP address resources are limited).

Static IP address allocation method is the method being used by the landlord. The advantage is that it is easy to manage, and it is generally used in small networks, but it will increase the burden on the server.