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RE: NAT external/Public IP
From: "Eric Furman" <ericfurman () fastmail net>
Date: Thu, 25 Oct 2007 13:13:07 -0400

-----Original Message-----
From: listbounce () securityfocus com [mailto:listbounce () securityfocus com]
On Behalf Of Ansgar -59cobalt- Wiechers
Sent: 25 October 2007 15:49
To: security-basics () securityfocus com
Subject: Re: NAT external/Public IP

On 2007-10-25 crazy frog crazy frog wrote:
On 24 Oct 2007 15:46:21 -0000, smarts_buy () yahoo com wrote:
Would like know is ther any security concern to bring in 
external/public IP with out NAT to inside of the enterprise network.
Is it any way more secure if we use NAT?
[...]
2)If you allow lots of machine to direct access the internet with 
external ip they may pose a security risk.

How would that pose a risk that would not exist with NAT'ed machines?

On Thu, 25 Oct 2007 16:28:13 +0100, "Jason Alexander"
<jalexander () plus net> said:
 If its not a security risk then why is it a PCI requirement?


If you are talking about Payment Card Industry (PCI) Data Security
Standard,
there isn't one for NAT.


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