<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Times New Roman \(Body CS\)";
panose-1:2 2 6 3 5 4 5 2 3 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:12.0pt">Good luck with that. </span>
<span style="font-size:12.0pt;font-family:"Apple Color Emoji"">😊</span><span style="font-size:12.0pt"> As Damian Menscher has presented at NANOG, even if we do an amazing job and shut down 99% of all DDoS reflectors, there will still be enough bandwidth to
generate terabit size attacks. <a href="https://stats.cybergreen.net">https://stats.cybergreen.net</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">I think we need to instead collectively focus on stopping the spoofed traffic that allows these attacks to be generated in the first place.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt">-Rich<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">NANOG Email List <nanog-bounces@nanog.org> on behalf of Bottiger <bottiger10@gmail.com><br>
<b>Date: </b>Thursday, April 23, 2020 at 3:32 PM<br>
<b>To: </b>Siyuan Miao <aveline@misaka.io><br>
<b>Cc: </b>NANOG list <nanog@nanog.org><br>
<b>Subject: </b>Re: Best way to get foreign ISPs to shut down DDoS reflectors?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">We are unable to upgrade our bandwidth in those areas. There are no providers within our budget there at the moment. Surely there must be some way to get them to respond.<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Thu, Apr 23, 2020 at 2:23 PM Siyuan Miao <<a href="mailto:aveline@misaka.io">aveline@misaka.io</a>> wrote:<o:p></o:p></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<div>
<p class="MsoNormal">It won't work. <o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Get a good DDoS protection and forget about it.<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Fri, Apr 24, 2020 at 5:17 AM Bottiger <<a href="mailto:bottiger10@gmail.com" target="_blank">bottiger10@gmail.com</a>> wrote:<o:p></o:p></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<div>
<p class="MsoNormal">Is there a guide on how to get foreign ISPs to shut down reflectors used in DDoS attacks?
<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I've tried sending emails listed under abuse contacts for their regional registries. Either there is none listed, the email is full, email does not exist, or they do not reply. Same results when sending to whatever other email they have
listed.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Example Networks:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">CLARO S.A.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Telefonica<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">China Telecom<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Korea Telecom<o:p></o:p></p>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
The contents of this e-mail message and <br>any attachments are intended solely for the <br>addressee(s) and may contain confidential <br>and/or legally privileged information. If you<br>are not the intended recipient of this message<br>or if this message has been addressed to you <br>in error, please immediately alert the sender<br>by reply e-mail and then delete this message <br>and any attachments. If you are not the <br>intended recipient, you are notified that <br>any use, dissemination, distribution, copying,<br>or storage of this message or any attachment <br>is strictly prohibited.</body>
</html>