nmap 192.168.0.*
Starting Nmap 4.20 ( http://insecure.org ) at 2008-01-31 23:14 CET
All 1697 scanned ports on 192.168.0.1 are filtered
All 1697 scanned ports on 192.168.0.3 are filtered
Interesting ports on 192.168.0.27:
Not shown: 1693 closed ports
PORT STATE SERVICE
80/tcp open http
139/tcp open netbios-ssn
445/tcp open microsoft-ds
902/tcp open iss-realsecure-sensor
All 1697 scanned ports on 192.168.0.254 are filtered
Nmap finished: 256 IP addresses (4 hosts up) scanned in 27.205 seconds