Vdaka za snahu O tom ze to potrebuje admin prava sa pise http://www.insecure.org/nmap/install/inst-windows.h tml#inst-win-source cast Executing Nmap as installed above. To by nebol az taky problem, ale taktiez sa tam pise

Nmap only supports Ethernet interfaces (including many 802.11 wireless cards)
unless you use the -sT -P0 options. RAS connections (such as PPP dialups) 
are not supported. This support was dropped when Microsoft removed 
raw TCP/IP socket support in Windows XP SP2. Now Nmap must send 
lower-level ethernet frames instead.

a prave PPP dialups je moj pripad.
I tak vdaka, ked si najblizsie nabootujem Knoppix 4.0, tak aspon budem vediet co ten program robi.