How to Find active IPs Linux LAN ?

HOWTO Find active IPs Linux LAN

#for ip in $(seq 1 254); do

ping -c1 -w1 192.168.1.$ip>/dev/null && echo “192.168.1.$ip is UP”

done

This will ping each computer on the 192.168.1.x subnet one time, with a one second interval between pings. The output should be something like

192.168.1.1 UP

192.168.1.17 UP

192.168.1.24 UP

------------------ OR

      # netdiscover -r 192.168.0.0/24

      # fping -g 192.168.1.0/24

      # nmap -sP -n $ip

           (replace eth0 with your NIC):

     # sudo arp-scan -I eth0 -l