Hello everyone,

I'm having a slight problem with Nmap.

Whenever I use this command:

Code:
nmap -sT -A -P0 IPHERE
It returns with this:

Code:
Starting Nmap 5.51SVN ( http://nmap.org ) at 2011-09-14 16:54 EDT
Traceroute does not support idle or connect scan
QUITTING!
The reason why I'm asking for help is because I'm reading the e-book "Metasploit: The Penetration Tester’s Guide", and this problem is keeping me from continuing.

In the e-book it returns with this:


Code:
Starting Nmap 5.20 ( http://nmap.org ) at 2011-03-15 19:35 EDT
Warning: Traceroute does not support idle or connect scan, disabling...
Any solutions?

Thanks!