The ARP protocol and the principle of ARP spoofing are described.The current ARP spoofing security technology is analyzed briefly.The static MAC-IP binding based on Dynamic ARP Inspection is introduced in detail.The steps,configuration process and the application results of the implementation are given.The results show that this method can accurately provide objective monitoring data.

This article introduces the concept of things and key technologies including RFID technology and wireless sensor networks,describes the application of RFID and WSN-based internet of things in agriculture,then gives personal opinions on the application of internet of things in modern tobacco agriculture,and finally forecasts its development.Application of the internet of things could change the extensive tobacco production and management patterns,which had certain reference values to the development of modern tobacco agriculture.