HOWTO 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