root@sempron:~# nmap -sS -sR -sV -O -PI -PT -n 192.168.1.*

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-05-19 23:29 EDT
Interesting ports on 192.168.1.1:
Not shown: 1675 filtered ports
PORT    STATE  SERVICE   VERSION
20/tcp  closed ftp-data
21/tcp  closed ftp
23/tcp  closed telnet
80/tcp  open   http      Intoto httpd 1.0
443/tcp open   http      Intoto httpd 1.0
MAC Address: 00:16:B6:E5:1D:F4 (Cisco-Linksys)
Device type: remote management|media device
Running: Compaq embedded, Phillips embedded
OS details: Compaq Inside Management Board, Phillips ReplayTV 5000 DVR
Uptime 7.382 days (since Sat May 12 14:20:29 2007)

Interesting ports on 192.168.1.59:
Not shown: 1673 closed ports
PORT     STATE SERVICE VERSION
22/tcp   open  ssh     OpenSSH 4.4 (protocol 1.99)
25/tcp   open  smtp    Sendmail 8.13.8/8.13.8
37/tcp   open  time     (32 bits)
113/tcp  open  ident   OpenBSD identd
587/tcp  open  smtp    Sendmail 8.13.8/8.13.8
631/tcp  open  ipp     CUPS 1.2
6000/tcp open  X11      (access denied)
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=i486-slackware-linux-gnu%D=5/19%Tm=464FC0D6%O=22%C=1)
TSeq(Class=RI%gcd=1%SI=2F00A1%IPID=Z)
TSeq(Class=RI%gcd=1%SI=2F009C%IPID=Z)
TSeq(Class=RI%gcd=1%SI=2F00A7%IPID=Z)
T1(Resp=Y%DF=Y%W=8000%ACK=S++%Flags=AS%Ops=MNNTNW)
T2(Resp=N)
T3(Resp=Y%DF=Y%W=8000%ACK=S++%Flags=AS%Ops=MNNTNW)
T4(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=)
T5(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=)
T6(Resp=Y%DF=Y%W=0%ACK=O%Flags=R%Ops=)
T7(Resp=Y%DF=Y%W=0%ACK=S++%Flags=AR%Ops=)
PU(Resp=Y%DF=N%TOS=C0%IPLEN=164%RIPTL=148%RID=E%RIPCK=E%UCK=E%ULEN=134%DAT=E)


Service Info: Host: sempron.nycap.rr.com; OSs: Unix, OpenBSD

Interesting ports on 192.168.1.102:
Not shown: 1676 closed ports
PORT    STATE SERVICE      VERSION
22/tcp  open  ssh          OpenSSH 4.3p2 Debian 5ubuntu1 (protocol 2.0)
80/tcp  open  http         Apache httpd 1.3.34 ((Ubuntu) mod_perl/1.29)
139/tcp open  netbios-ssn  Samba smbd 3.X (workgroup: MSHOME)
445/tcp open  netbios-ssn  Samba smbd 3.X (workgroup: MSHOME)
MAC Address: 00:13:CE:12:B5:3B (Intel Corporate)
Device type: general purpose
Running: Linux 2.4.X|2.5.X|2.6.X
OS details: Linux 2.4.0 - 2.5.20, Linux 2.4.7 - 2.6.11
Service Info: OS: Linux

Interesting ports on 192.168.1.215:
Not shown: 1675 closed ports
PORT    STATE SERVICE     VERSION
22/tcp  open  ssh         OpenSSH 4.4 (protocol 1.99)
25/tcp  open  smtp
37/tcp  open  time         (32 bits)
113/tcp open  ident       OpenBSD identd
587/tcp open  submission
MAC Address: 00:B0:D0:D3:21:44 (Dell Computer)
Device type: general purpose
Running: Linux 2.4.X|2.5.X|2.6.X
OS details: Linux 2.4.0 - 2.5.20, Linux 2.4.7 - 2.6.11
Service Info: OS: OpenBSD

Interesting ports on 192.168.1.216:
Not shown: 1675 closed ports
PORT    STATE SERVICE     VERSION
22/tcp  open  ssh         OpenSSH 4.4 (protocol 1.99)
25/tcp  open  smtp
37/tcp  open  time         (32 bits)
113/tcp open  ident       OpenBSD identd
587/tcp open  submission
MAC Address: 00:B0:D0:D3:21:44 (Dell Computer)
Device type: general purpose
Running: Linux 2.4.X|2.5.X|2.6.X
OS details: Linux 2.4.0 - 2.5.20, Linux 2.4.7 - 2.6.11
Service Info: OS: OpenBSD

Nmap finished: 256 IP addresses (5 hosts up) scanned in 182.438 seconds