-i is used to enter the network interface name.The above output shows the options which will be used in men in the middle attack.Then open another terminal in kali linux and type arpspoof Version: 2.4 Usage: arpspoof host.Now if anyone on the network will search anything, attacker will know.
This results into linking router’s default IP address to attacker’s mac address. Arpsoofing ARP (Address resolution protocol) is a attack in which attacker sends forged request to the router.After executing the above command, all the IPv4 network packages will be forwarded from kali linux.Type sysctl -w _forward =1 for packets sysctl -w _forward=1 _forward = 1.
Then type ip route show to check default gateway address of the router.Type ifconfig in kali linux terminal to kali linux IP address.Or you can use GUI based tool Netcat which tells no.So we already have the IPv4 of the target device.
For showing you we are using windows 7 as target.