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Re: NMAP performance patch (ICMP Unreachable rate limited)
From: "Alec H. Peterson" <ahp () hilander com>
Date: Mon, 13 Jun 2005 14:54:08 -0600

--On June 13, 2005 22:49:32 +0200 Andreas Ericsson <ae () op5 se> wrote:


That's one of Martin Méoks' (I'm nearly 100% sure I spelled the last
name wrong) creations. I believe it was just submitted at a bad time
when the Fyodor was revamping a lot of other functionality. It's quite
possible it was just forgotten, but I seem to remember at least one user
having problems with it not properly detecting some hosts when it's a
router that does the limiting (as opposed to the final destination of
the packet).

Interesting.  I only have one data point right now, but that point includes 
a cisco router performing the rate limiting (the target is behind the 
router) and it detected everything just fine...

I would be really interested in other thoughts, because the performance hit 
of 3.81 versus 2.54BETA31 is really big for this scan (running with -T4).

Alec




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