root@xenon:~ # nmap -vv -sS -P0 -T4 -O -p 1-65535 lithium

Starting nmap 3.75 ( http://www.insecure.org/nmap/ ) at 2005-01-02 17:54 CET
Initiating SYN Stealth Scan against lithium.planetcobalt.local (192.168.100.13) [65535 ports] at 17:54
SYN Stealth Scan Timing: About 0.45% done; ETC: 19:47 (1:51:56 remaining)
The SYN Stealth Scan took 6639.17s to scan 65535 total ports.
Warning:  OS detection will be MUCH less reliable because we did not find at least 1 open and 1 closed TCP port
Host lithium.planetcobalt.local (192.168.100.13) appears to be up ... good.
All 65535 scanned ports on lithium.planetcobalt.local (192.168.100.13) are: filtered
MAC Address: 00:48:54:3B:E7:9E (Unknown)
Too many fingerprints match this host to give specific OS details
TCP/IP fingerprint:
SInfo(V=3.75%P=i686-pc-linux-gnu%D=1/2%Tm=41D84167%O=-1%C=-1%M=004854)
T5(Resp=N)
T6(Resp=N)
T7(Resp=N)
PU(Resp=N)

Nmap run completed -- 1 IP address (1 host up) scanned in 6681.645 seconds
root@xenon:~ # nmap -vv -sU -P0 -T5 -O -p 1-65535 lithium

Starting nmap 3.75 ( http://www.insecure.org/nmap/ ) at 2005-01-02 20:43 CET
Initiating UDP Scan against lithium.planetcobalt.local (192.168.100.13) [65535 ports] at 20:43
UDP Scan Timing: About 0.89% done; ETC: 21:39 (0:56:00 remaining)
192.168.100.13 timed out during UDP Scan (0 hosts left)
Finished UDP Scan in 900.19s, but 1 host timed out.
Host lithium.planetcobalt.local (192.168.100.13) appears to be up ... good.
Skipping host lithium.planetcobalt.local (192.168.100.13) due to host timeout

Nmap run completed -- 1 IP address (1 host up) scanned in 903.551 seconds
root@xenon:~ # _