IPL uses the SNMP protocol to automatically establish the correlation between the upper and lower switches, identify the physical location of the IP address, generate the network topology, and provide the records of MAC/IP/Switch/Port/VLAN ID. It supports most of the switch brands in the market and can gather device information from different operating systems such as Windows, Linux, macOS, Android, and iOS, to assist managers in inventory assets. A single Port multi-MAC list can be established or MAC/Port binding can be set. If any unauthorized access event occurs, the system will automatically alert and pop up a correction prompt to ensure the intranet security.