Re: NMAP performance patch (ICMP Unreachable rate limited)

["Alec H. Peterson" <ahp () hilander com>]

--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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