IP paketleriyle gerçekleştirilen bu taramada, erişilemeyen bir IP taramaya cevap vermeyecektir.
Erişilebilen bir IP ise protokol tipine mahsus olacak şekilde RST bayraklı paket döndürecektir.
Bu taramayı gerçekleştirmek için aşağıdaki komut kullanılmalıdır :
nmap -sO -v [Hedef_IP]
nmap -sO -v 192.168.1.2
at 2010-08-01 18:46 EEST
Initiating ARP Ping Scan at 18:46
Scanning 192.168.1.2 [1 port]
Completed ARP Ping Scan at 18:46, 0.02s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 18:46
Completed Parallel DNS resolution of 1 host. at 18:46, 0.14s elapsed
Initiating IPProto Scan at 18:46
Scanning 192.168.1.2 [256 ports]
Discovered open port 6/ip on 192.168.1.2
Discovered open port 1/ip on 192.168.1.2
Increasing send delay for 192.168.1.2 from 0 to 5 due to max_successful_tryno increase to 4
Increasing send delay for 192.168.1.2 from 5 to 10 due to max_successful_tryno increase to 5
Increasing send delay for 192.168.1.2 from 10 to 20 due to max_successful_tryno increase to 6
Increasing send delay for 192.168.1.2 from 20 to 40 due to max_successful_tryno increase to 7
Increasing send delay for 192.168.1.2 from 40 to 80 due to max_successful_tryno increase to 8
Increasing send delay for 192.168.1.2 from 80 to 160 due to max_successful_tryno increase to 9
Increasing send delay for 192.168.1.2 from 160 to 320 due to 11 out of 11 dropped probes since last increase.
IPProto Scan Timing: About 18.89% done; ETC: 18:48 (0:02:13 remaining)
Increasing send delay for 192.168.1.2 from 320 to 640 due to 11 out of 14 dropped probes since last increase.
Increasing send delay for 192.168.1.2 from 640 to 1000 due to 11 out of 23 dropped probes since last increase.
IPProto Scan Timing: About 32.00% done; ETC: 18:49 (0:02:29 remaining)
[4]+ Stopped nmap -sO -v 192.168.1.2