Local area network security protection system and method for defending ARP spoofing and network scanning
A technology of ARP spoofing and network scanning, applied in the field of LAN security protection system, can solve the problems of poor detection ability, high false alarm rate, difficult real-time active defense, etc., and achieve the effect of preventing hijacking and sniffing and increasing difficulty
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[0046]The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings to understand the scope of the invention, but is not limited to the scope of the invention.
[0047]The defense ARP spoofing and network scanning of the present invention is mainly used in DHCP environments, against ARP spoofing and network scans in the LAN. First, the technological innovation principle of the present invention will be described. The basic technical idea of the present invention is that first, the DHCP interaction phase of the IP address is first obtained at the local area network, and the DHCP server is modified to the host's IP address and the default gateway IP, so that the IP address obtained by each host monoped a network segment, ie The IP addresses of the two hosts belong to different network segments (the IP obtained by the modified IP and the default gateway IP obtained in the same network segment); secondly, randomly generate ...
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