Thank you for your reply.

As you can see from my first message, blackhole did not
work.

Harold

On Fri, Sep 16, 2005 at 07:36:36AM -0500, Boris Karloff
wrote:
> It appears that when FreeBSD is sent an invalid packet
> without the SYN or ACK bits set, it responds with a RESET
> reply regardless of the ipfw rules. It appears this is one
> of the things nmap is exploiting.
> 
> Any suggestions on how to modify this behavior?

man blackhole
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