以下是一实例。nmap 工具可以上 http://insecure.org/nmap 网站下载。
D:\Program Files\nmap-5.21>nmap -sU 192.168.1.0/24 | more
Starting Nmap 5.21 ( http://nmap.org ) at 2010-01-30 21:30 中国标准时间
Nmap scan report for 192.168.1.1
Host is up (0.0020s latency).
Not shown: 997 open|filtered ports
PORT STATE SERVICE
53/udp open domain
1900/udp closed upnp
17185/udp closed wdbrpc
MAC Address: 00:21:27:29:D0:F0 (Tp-link Technology Co.)
Skipping UDP Scan against 192.168.1.12 because Windows does not support scanning
your own machine (localhost) this way.
Nmap scan report for 192.168.1.12
Host is up.
PORT STATE SERVICE
2/udp unknown compressnet
3/udp unknown compressnet
7/udp unknown echo
9/udp unknown discard
13/udp unknown daytime
17/udp unknown qotd
19/udp unknown chargen
20/udp unknown ftp-data
-- More --
34555/udp unknown unknown
34570/udp unknown unknown
34577/udp unknown unknown
34578/udp unknown unknown
34579/udp unknown unknown
34580/udp unknown unknown
34758/udp unknown unknown
34796/udp unknown unknown
34855/udp unknown unknown
34861/udp unknown unknown
34862/udp unknown unknown
34892/udp unknown unknown
35438/udp unknown unknown
35702/udp unknown unknown
35777/udp unknown unknown
35794/udp unknown unknown
36108/udp unknown unknown
36206/udp unknown unknown
36384/udp unknown unknown
36458/udp unknown unknown
36489/udp unknown unknown
36669/udp unknown unknown
36778/udp unknown unknown
36893/udp unknown unknown
36945/udp unknown unknown
37144/udp unknown unknown
37212/udp unknown unknown
37393/udp unknown unknown
37444/udp unknown unknown
37602/udp unknown unknown
37761/udp unknown unknown
37783/udp unknown unknown
37813/udp unknown unknown
37843/udp unknown unknown
38037/udp unknown landesk-cba
38063/udp unknown unknown
38293/udp unknown landesk-cba
38412/udp unknown unknown
38498/udp unknown unknown
38615/udp unknown unknown
39213/udp unknown sygatefw
39217/udp unknown unknown
39632/udp unknown unknown
39683/udp unknown unknown
39714/udp unknown unknown
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39888/udp unknown unknown
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41967/udp unknown unknown
41971/udp unknown unknown
42056/udp unknown unknown
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42627/udp unknown unknown
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43967/udp unknown unknown
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44185/udp unknown unknown
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48761/udp unknown unknown
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49172/udp unknown unknown
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49175/udp unknown unknown
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49177/udp unknown unknown
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49306/udp unknown unknown
49350/udp unknown unknown
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49393/udp unknown unknown
49396/udp unknown unknown
49503/udp unknown unknown
49640/udp unknown unknown
49968/udp unknown unknown
50099/udp unknown unknown
50164/udp unknown unknown
50497/udp unknown unknown
50612/udp unknown unknown
50708/udp unknown unknown
50919/udp unknown unknown
51255/udp unknown unknown
51456/udp unknown unknown
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51586/udp unknown unknown
51690/udp unknown unknown
51717/udp unknown unknown
51905/udp unknown unknown
51972/udp unknown unknown
52144/udp unknown unknown
52225/udp unknown unknown
52503/udp unknown unknown
53006/udp unknown unknown
53037/udp unknown unknown
53571/udp unknown unknown
53589/udp unknown unknown
53838/udp unknown unknown
54094/udp unknown unknown
54114/udp unknown unknown
54281/udp unknown unknown
54321/udp unknown bo2k
54711/udp unknown unknown
54807/udp unknown unknown
54925/udp unknown unknown
55043/udp unknown unknown
55544/udp unknown unknown
55587/udp unknown unknown
56141/udp unknown unknown
57172/udp unknown unknown
57409/udp unknown unknown
57410/udp unknown unknown
57813/udp unknown unknown
57843/udp unknown unknown
57958/udp unknown unknown
57977/udp unknown unknown
58002/udp unknown unknown
58075/udp unknown unknown
58178/udp unknown unknown
58419/udp unknown unknown
58631/udp unknown unknown
58640/udp unknown unknown
58797/udp unknown unknown
59193/udp unknown unknown
59207/udp unknown unknown
59765/udp unknown unknown
59846/udp unknown unknown
60172/udp unknown unknown
60381/udp unknown unknown
60423/udp unknown unknown
61024/udp unknown unknown
61142/udp unknown unknown
61319/udp unknown unknown
61322/udp unknown unknown
61370/udp unknown unknown
61412/udp unknown unknown
61481/udp unknown unknown
61550/udp unknown unknown
61685/udp unknown unknown
61961/udp unknown unknown
62154/udp unknown unknown
62287/udp unknown unknown
62575/udp unknown unknown
62677/udp unknown unknown
62699/udp unknown unknown
62958/udp unknown unknown
63420/udp unknown unknown
63555/udp unknown unknown
64080/udp unknown unknown
64481/udp unknown unknown
64513/udp unknown unknown
64590/udp unknown unknown
64727/udp unknown unknown
65024/udp unknown unknown
Stats: 0:01:24 elapsed; 255 hosts completed (3 up), 1 undergoing UDP Scan
UDP Scan Timing: About 5.00% done; ETC: 21:32 (0:00:38 remaining)
Stats: 0:01:24 elapsed; 255 hosts completed (3 up), 1 undergoing UDP Scan
UDP Scan Timing: About 5.50% done; ETC: 21:32 (0:00:34 remaining)
Stats: 0:01:29 elapsed; 255 hosts completed (3 up), 1 undergoing UDP Scan
UDP Scan Timing: About 26.50% done; ETC: 21:32 (0:00:19 remaining)
Stats: 0:01:29 elapsed; 255 hosts completed (3 up), 1 undergoing UDP Scan
UDP Scan Timing: About 29.00% done; ETC: 21:32 (0:00:20 remaining)
Stats: 0:01:30 elapsed; 255 hosts completed (3 up), 1 undergoing UDP Scan
UDP Scan Timing: About 31.50% done; ETC: 21:32 (0:00:17 remaining)
Stats: 0:01:30 elapsed; 255 hosts completed (3 up), 1 undergoing UDP Scan
UDP Scan Timing: About 33.50% done; ETC: 21:32 (0:00:18 remaining)
Stats: 0:01:35 elapsed; 255 hosts completed (3 up), 1 undergoing UDP Scan
UDP Scan Timing: About 78.10% done; ETC: 21:32 (0:00:04 remaining)
Nmap scan report for 192.168.1.20
Host is up (0.00s latency).
Not shown: 999 open|filtered ports
PORT STATE SERVICE
137/udp open netbios-ns
MAC Address: 00:1D:72:2E:F7:64 (Wistron)
Nmap done: 256 IP addresses (3 hosts up) scanned in 96.05 seconds