It is important to note that performing a man-in-the-middle (MITM) attack using ARP poisoning is illegal and can result in serious consequences. This guide is intended for educational purposes only and should not be used for illegal activities.

Setting up ARP poisoning and a man-in-the-middle attack using Ettercap on a network requires several steps. In this guide, we will cover the basic steps for setting up ARP poisoning on a Windows 10 switch and router with a Kali Linux machine in the middle.

Prerequisites:

• Windows 10 switch and router
• Kali Linux machine
• Ettercap installed on Kali Linux

Step 1: Configure network settings

First, you will need to configure the network settings on your Kali Linux machine to ensure it is connected to the network. This includes setting a static IP address for your Kali machine and configuring the default gateway to point to the router. You can do this by editing the network configuration file in Kali Linux:

nano /etc/network/interfaces

Then, add the following lines to the file:

auto eth0 iface eth0 inet static address <Kali IP Address> netmask <Subnet Mask> gateway <Router IP Address>

Save the file and exit.

Step 2: Enable IP forwarding

Next, you will need to enable IP forwarding on your Kali machine. This will allow the traffic to pass through your machine and enable the MITM attack. To do this, run the following command:

sysctl net.ipv4.ip_forward=1

Step 3: Identify the target

Identify the target machine that you want to perform the MITM attack on. This can be any device on your network, such as a Windows 10 machine.

Step 4: Launch Ettercap

Launch Ettercap on your Kali Linux machine by running the following command:

ettercap -G

This will launch the Ettercap GUI.

Step 5: Select target and sniffing options

In the Ettercap GUI, go to “Sniff” and select “Unified Sniffing”. Then, select the interface you want to use for packet capture.

Next, go to “Hosts” and select “Scan for Hosts”. This will scan the network and display a list of devices.

Select the target device from the list and click “Add to Target 1”.

Step 6: Set up ARP poisoning

In the Ettercap GUI, go to “Mitm” and select “ARP Poisoning”. Then, select “Sniff Remote Connections”.

Click on “OK” to start the ARP poisoning.

Step 7: Monitor traffic

After ARP poisoning is set up, you can start monitoring traffic by going to “View” and selecting “Connections”.

You should now be able to see the traffic between the target machine and the router passing through your Kali Linux machine.

In conclusion, setting up ARP poisoning and a man-in-the-middle attack using Ettercap requires several steps and should only be done for educational purposes. It is important to note that performing a MITM attack using ARP poisoning is illegal and can result in serious consequences.