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Re: nmap performance -> timeout issue
From: Martin Mačok <martin.macok () underground cz>
Date: Thu, 14 Apr 2005 10:35:26 +0200

On Wed, Apr 13, 2005 at 08:29:53PM +0200, Maarten Hartsuijker wrote:

The first subnet I'm testing is /23, pix protected->icmp filtered and
after finishing only half the scan after two days, I aborted and started

On filtered ports - does the firewall returns ICMP Destination
Unreachables? Are they rate-limited? If yes and yes, try this patch:


(it should apply to 3.81 too)

Martin Mačok
ICT Security Consultant

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