[27281] in North American Network Operators' Group
Re: Cisco says attacks are due to operational practices
daemon@ATHENA.MIT.EDU (Paul Ferguson)
Thu Feb 10 21:46:14 2000
Message-Id: <4.2.2.20000210212108.00a33190@lint.cisco.com>
Date: Thu, 10 Feb 2000 21:22:48 -0500
To: Chris Cappuccio <chris@dqc.org>
From: Paul Ferguson <ferguson@cisco.com>
Cc: nanog@merit.edu
In-Reply-To: <Pine.BSO.4.21.0002101812130.2897-100000@dqc.org>
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Errors-To: owner-nanog-outgoing@merit.edu
At 06:13 PM 02/10/2000 -0800, Chris Cappuccio wrote:
>Filtering incoming our outgoing ports for anybody's network but your own (not
>your customer's) is wrong. You know specifically what apps you are running.
>How can you know what your customer is running or what they want to do ?
Excuse me, but can you please tell me what "application" a downstream
customer might be running which originates packets for traffic with
source addresses which they are not advertising (or you are advertising
for them)?
- paul
