[root@TuXiTa ~]# nmap -sS -O 201.242.224.1

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-02-23 20:57 VET
Interesting ports on dyn-1.rbe.bras-01.may.dsl.cantv.net (201.242.224.1):
Not shown: 1671 closed ports
PORT     STATE    SERVICE
22/tcp   open     ssh
23/tcp   open     telnet
135/tcp  filtered msrpc
139/tcp  filtered netbios-ssn
179/tcp  open     bgp
445/tcp  filtered microsoft-ds
593/tcp  filtered http-rpc-epmap
646/tcp  open     unknown
4444/tcp filtered krb524
MAC Address: 00:90:1A:A0:1B:E2 (Unisphere Solutions)
No exact OS matches for host (If you know what OS is running on it, see http://www.insecure.org/cgi-bin/nmap-submit.cgi).
TCP/IP fingerprint:
SInfo(V=4.11%P=i686-redhat-linux-gnu%D=2/23%Tm=45DF8D7E%O=22%C=1%M=00901A)
TSeq(Class=TR%IPID=RD%TS=2HZ)
T1(Resp=Y%DF=Y%W=2000%ACK=S++%Flags=AS%Ops=MNWNNT)
T2(Resp=N)
T3(Resp=N)
T4(Resp=Y%DF=Y%W=2000%ACK=O%Flags=R%Ops=)
T5(Resp=Y%DF=N%W=0%ACK=S++%Flags=AR%Ops=)
T6(Resp=Y%DF=N%W=0%ACK=O%Flags=R%Ops=)
T7(Resp=Y%DF=N%W=0%ACK=S%Flags=AR%Ops=)
PU(Resp=Y%DF=N%TOS=0%IPLEN=38%RIPTL=148%RID=E%RIPCK=E%UCK=E%ULEN=134%DAT=E)


Uptime 68.150 days (since Sun Dec 17 17:22:09 2006)

Nmap finished: 1 IP address (1 host up) scanned in 18.470 seconds