scanning Mac OS X with nmap

[Asli Koksal <koksal.a () gmail com>]

Hello all,

I am trying to scan a Mac OS X 10.7.1 machine. When I run nmap as normal
user it gives me the output as below:

nmap -PN 10.0.0.11

Starting Nmap 5.21 ( http://nmap.org ) at 2011-09-28 11:52 EEST

Nmap scan report for 10.0.0.11

Host is up (0.035s latency).

Not shown: 99 closed ports

PORT     STATE    SERVICE

1720/tcp filtered H.323/Q.931

Nmap done: 1 IP address (1 host up) scanned in 1.69 seconds


But the same machine I try the same command as su, it gives no results:

sudo nmap -PN --osscan-guess -F 10.0.0.11

Starting Nmap 5.21 ( http://nmap.org ) at 2011-09-28 11:53 EEST

Nmap done: 1 IP address (0 hosts up) scanned in 0.35 seconds


What can be the problem?

Thanks in advance.

ASLI
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