localhost ~ # nmap -sP 192.168.1.0/24
Starting Nmap 4.20 ( http://insecure.org ) at 2007-06-20 21:40 CDT
Host 192.168.1.1 appears to be up.
MAC Address: 00:16:B6:A8:84:17 (Cisco-Linksys)
Host 192.168.1.100 appears to be up.
MAC Address: 00:18:F3:A0:50:C0 (Asustek Computer)
Host 192.168.1.101 appears to be up.
MAC Address: 00:0C:F1:B1:8B:EA (Intel)
Host Server (192.168.1.102) appears to be up.
MAC Address: 00:14:2A:0E:CE:FC (Elitegroup Computer System Co.)
Host HP4L (192.168.1.103) appears to be up.
MAC Address: 00:14:BF:FC:28:79 (Cisco-Linksys)
Host 192.168.1.106 appears to be up.
MAC Address: 00:16:E6:85:17:CF (Giga-byte Technology Co.)
Host 192.168.1.107 appears to be up.
MAC Address: 00:0E:A6:4E:1D:9A (Asustek Computer)
Host GenToo_Nyle (192.168.1.108) appears to be up.
Nmap finished: 256 IP addresses (8 hosts up) scanned in 5.827 seconds