Re: Every host seems down?

["DePriest, Jason R." <jrdepriest () gmail com>]

On 8/29/07, neivo () 126 com wrote:
> Hi,
>
> This is my first time to use nmap.And it does not work.
>
> When I scan a host ,such as scanme.nmap.org.There is a note says:"Host seems down.If it is really up,but blocking our 
> ping probes ,try -P0"
>
> Why is that ?I have downloaded the latest version,and followed your advices on the website,but all my efforts are in 
> vain.
>
> Can you help me ?
>
> Thank you so much!

If you are using a Windows XP or Vista system, it's possible the
Windows Firewall is blocking the traffic.

-Jason

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