Other method

Bash Ping Sweeper

#!/bin/bash
for lastOctet in {1..254}; do 
    ping -c 1 10.0.0.$lastOctet | grep "bytes from" | cut -d " " -f 4 | cut -d ":" -f 1 &
done

Port Scanning with NetCat

nc -nvv -w 1 -z host 1000-2000
nc -nv -u -z -w 1 host 160-162

Port Scanning with Masscan

masscan -p1-65535,U:1-65535 10.10.10.x --rate=1000 -e tun0