Re: Req: info on IP range popup ad software supposedly called "Extreme Marketing"

From: Barry Margolin (barmar@genuity.net)
Date: 12/30/02 

From: Barry Margolin <barmar@genuity.net>
Date: Mon, 30 Dec 2002 22:44:52 GMT

In article <pan.2002.12.30.20.49.41.320407@forme.com>,
Joe Schmoe <nomail@forme.com> wrote:
>On Mon, 30 Dec 2002 18:52:56 +0000, Barry Margolin wrote:
>> Since egress filtering forces organizations to use source addresses that
>> are assigned to them, you can use the source address to determine what
>> organization sent it.
>
>I know what you are saying and agree with you. But if the egress filtering
>is being done by your ISP, it is probably taking place at the border
>router for your subnet and that's as far back as they can trace it.

Which is good enough, isn't it? They don't need to know which machine is
spamming, just what organization is, so that they can cancel your
connection if you don't stop.

If the organization is also a service provider, they should be able to
further pin down which of their customers was using the specific IP at the
time. 

-- 
Barry Margolin, barmar@genuity.net
Genuity, Woburn, MA
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