I use VMWare player with live backtrack linux(host is Windows XP).

VMWare uses NAT to provide internet connection to the guest
OS(backtrack linux).

Is there any possiblity that if I do any port scanning(using nmap) or
vulenarability detection (using nikto or asp-audit), will my o/p be
faulty ????

Why can't my trace route gives every ip hop distant of 2 ???