nanog mailing list archives

Re: Request for contact and procedure information


From: Jeffrey Lyon <jeffrey.lyon () blacklotus net>
Date: Fri, 10 Jul 2009 18:38:53 -0400

Fact: Filtering TCP/80 attacks is a 3 to 4 figure job, sometimes even 5 figure.

Jeff

On Fri, Jul 10, 2009 at 6:16 PM, Christopher
Morrow<morrowc.lists () gmail com> wrote:
On Fri, Jul 10, 2009 at 5:49 PM, Luan Nguyen<luan () netcraftsmen net> wrote:
Filter like in using the Cisco Guard of sort, to send the good traffic back
to the customers? And that service is <cough>free through vzb?</cough>

as in: "find some way to keep the customer alive and kicking"

which might be:
1) null route bad destination if no one cares about it
2) acl the traffic upstream if it's not to something you care about
(but need the ip to work)
3) guard/mitigate traffic and redeliver (which has some limitations or did)

all of that is free to 701 customers, yes. if you have to get to step3
more than a few times I'm sure sales will want you to pay, since that
part isn't 'free' to the company.

point being, dropping tcp/80 syn traffic isn't hard, and it's
routinely done at customer request. (or was when I was doing it there)

-chris

----------------------------------


-----Original Message-----
From: Christopher Morrow [mailto:morrowc.lists () gmail com]
Sent: Friday, July 10, 2009 5:40 PM
To: Jeffrey Lyon
Cc: nanog () nanog org; Charles Wyble
Subject: Re: Request for contact and procedure information

On Fri, Jul 10, 2009 at 5:12 PM, Jeffrey
Lyon<jeffrey.lyon () blacklotus net> wrote:
Would what? Null route the IP? I'm talking about actually filtering the
attack.

as was I. (talking about filtering the attack)

On Jul 10, 2009 5:10 PM, "Christopher Morrow" <morrowc.lists () gmail com>
wrote:

On Fri, Jul 10, 2009 at 2:11 AM, Jeffrey Lyon<jeffrey.lyon () blacklotus net>
wrote: > All, > > There a...

<cough>uunet/vzb would/will</cough>

(for free most times even)







-- 
Jeffrey Lyon, Leadership Team
jeffrey.lyon () blacklotus net | http://www.blacklotus.net
Black Lotus Communications of The IRC Company, Inc.

Look for us at HostingCon 2009 in Washington, DC on August 10th - 12th
at Booth #401.


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