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Network Security Pen-Test
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Re: nmap and icmp-replies

Subject: Re: nmap and icmp-replies
Date: Fri, 21 Apr 2006 11:06:14 +0200
On Thu, Apr 20, 2006 at 09:44:00AM +0200, Tobias Glemser wrote:

ICMP Dest-Unreachable should occur when scanning UDP.

It occurs also when scanning for TCP ports through some firewalls (for
example Linux netfilter with REJECT policy).

Martin Mačok
ICT Security Consultant

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