Arpscan lists hosts on a local network. It scans ethernet using ARP protocol and reports responding hosts. Unlike ping, ARP is essential for the network (IPv4) to operate and can't be turned off. This is a Linux-only program.

arpscan [-faepV] [interface] [ip-range]
        -s  sort responses
        -a  do not list interface's own address
        -e  do not include info from /etc/ethers
        -p  print vendor names
        -w  slow operation
        -l  listen only (not promiscuous)
        -V  version info
ip-range: ip ip/bits ip-ip


Source: arpscan-0.15.tar.gz ()