Final Solution for using arping to grab IP addresses in Linux

Recently, I encountered a shameless Windows user who grabbed the IP address of Linux. After studying the IP address for one afternoon, I finally solved the problem. Share with you.
Assume that the gateway is 192.168.5.1 with a 24-bit mask. 192.168.5.5 has been used by a Windows user.
My Linux is on a pleasant boot, and an error is reported when the network script is run, saying that the IP address has been used by others, and the network startup failed! Linux is so modest!
The current goal is to get this IP address back. The worst result is at least to make sure that "you don't want to use it if I can't use it ".
So I wrote a script:
Shell code

#! /Bin/sh while true; do ifconfig eth0 192.168.5.5/24 up route add default gw 192.168.5.1 sleep 1 done # arping-Uq-s192.168.5.5-Ieth0 192.168.5.1 &

In this way, as long as I run this script, even if the Windows machine is using 192.168.5.5, this IP address will be forcibly grabbed by my Linux.

Linux has been attacked by arp. Many times, our WEB server has been infected with Trojans. The server checks and finds that the code is normal. This situation is caused by arp Trojans, which are arp attacks against disguised gateways of machines in the same network segment, you can find out which machine has a problem through the following method:
1. Use tcpdump to capture packets
Tcpdump-qne arp
Through the above packet capture, we can see that the IP address of the same MAC as the gateway is a problematic machine.
Because arp is disguised as a gateway, the data passed through the gateway is modified, so the webpage content is abnormal, so there must be two machines with problems.
You can only ask the machine room to handle the problematic machine, or bind your MAC ip address to the gateway.

Key commands:
Nic interface of the arping-U-I package-s source ip address destination ip address
Instance:
Assume that the ip address of your eth0 interface is 192.168.1.1 and the gateway is 192.168.1.254.
Arping-U-I eth0-s 192.168.1.1 192.168.1.254