On Tue, 14 May 2002, Renaud Deraison wrote:
> On Tue, May 14, 2002 at 11:51:12AM -0400, histar2 wrote:
> In a closed network with Alpha Tru64 targets, if you ping them, they
> > respond just fine. If you run a full:
> >
> > nmap -sT -O 192.168.1.1/24
> >
> > Then it fails saying it CAN'T ping the hosts. BUT, we know that is not
> > true. Now, if you add the -P0 to the test, it works, but I do not
> > understand why the nmap-ping does not work.
>
> Maybe you should start tcpdump and see what happens, that should help
> explaining what's going on.
Also note you are sure what you mean by "ping". Are referring to the ICMP
echo request or an attempt to do some TCP magic.
If you play with nmapfe you will notice that the nmap default is to do
both. If you want to do just ICMP (like the ping command does) you should
use the -PI option as described in the manual page of nmap.
Hugo.
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