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Network Security Pen-Test
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Re: Scanning Class A network

Subject: Re: Scanning Class A network
Date: 25 Oct 2005 00:57:13 -0000
You mentioned scanning from the external so my question is if there is a 
firewall that is blocking port scans? This is possibly what is affecting your 
scan progress.
My personal experience is that NMap is much slower than the other tools you 
mentioned when scanning ports 1-65535.

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