What would you suggest to counter that type of an attack, or is this
type of attack of no importance?

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Henning Brauer
Sent: July 29, 2003 8:46 AM
To: [EMAIL PROTECTED]
Subject: Re: Download Bandwith Shaping :: Idea


On Tue, Jul 29, 2003 at 04:47:30PM +0300, Alexey E. Suslikov wrote:
> assume, your router directly plugged into ether on
> a isp's switch. assume, some nasty guy on the same
> segment trying to waste your PHYSICAL bandwidth by
> sending broad- or multicasts. yes, your packet filter
> will drop them, but prior to drop, stack must RECEIVE
> them and pf must recognize them as "to be dropped".
> 
> now, your PHYSICAL pipe is full of junk. so, Ed,
> explain me, how to shape down this junk?

it doesn't help against this attack.
slowing down the outgoing tcp acks etc slows down usual downloads tho. 

-- 
Henning Brauer, BS Web Services, http://bsws.de
[EMAIL PROTECTED] - [EMAIL PROTECTED]
Unix is very simple, but it takes a genius to understand the simplicity.
(Dennis Ritchie)

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