# nmap (V. 2.54BETA22) scan initiated Thu Apr  5 12:37:01 2001.
 
Interesting ports on dsl-143-247-146.btitelecom.net (198.143.247.146):
(The 1537 ports scanned but not shown below are in state: closed)
Port       State       Service
23/tcp     open        telnet                  
25/tcp     open        smtp                    
80/tcp     open        http                    
110/tcp    open        pop-3                   
1723/tcp   open        pptp                    

Remote operating system guess: Cisco Catalyst 1900 switch or Netopia DSL/ISDN router or Bay 350-450

# Nmap run completed at Thu Apr  5 12:38:10 2001 -- 1 IP address (1 host up) scanned in 69 seconds