<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Sounds like you need some DDoS help. Let me know. ;)<br><br>We've been certainly seeing an uptick in the number and size of attacks lately. I am not sure why the last mile providers aren't blocking spoofed source addresses.<br><br>There really isn't a good mitigation strategy other than offloading the attacks to a scalable provider. Or having ISPs validate the source prior to forwarding the packet. You just can't mitigate 450Gbps attacks at origin infrastructure.</div><div><br></div><div><br>-<div>Terrence</div><div>Sent from my iPhone please excuse any errors.</div></div><div><br>On Mar 8, 2014, at 11:10 AM, "Frank Bulk" <<a href="mailto:frnkblk@iname.com">frnkblk@iname.com</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"><meta name="Generator" content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If you’ve seen more than 300 Gbps you should blog about it. =) The largest documented to date is CloudFlare’s. <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Are your upstream providers blocking NTP packets larger than a certain size?<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Frank<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p><p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> Bryan Socha [<a href="mailto:bryan@serverstack.com">mailto:bryan@serverstack.com</a>] <br><b>Sent:</b> Saturday, March 08, 2014 10:04 AM<br><b>To:</b> Frank Bulk<br><b>Cc:</b> <a href="mailto:outages-discussion@outages.org">outages-discussion@outages.org</a><br><b>Subject:</b> Re: [outages] enough of this ntp bs.<o:p></o:p></span></p><p class="MsoNormal"><o:p> </o:p></p><div><p class="MsoNormal">It might sound like a joke but I've seen hundreds of gigs of attacks every morning. It'w all coming from home CPE devices and I think they need to start paying us for their incompetence. in 2014, why is this a problem!!?!???!?!?!!? it's time to be responsible. <o:p></o:p></p></div><div><p class="MsoNormal"><br clear="all"><o:p></o:p></p><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#888888;background:white">Bryan Socha</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";background:white"><o:p></o:p></span></p><div><div><p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#666666;background:white">Network Engineer<o:p></o:p></span></p></div><div><p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#1155CC;background:white">646.450.0472</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#666666;background:white"> | <u><a href="mailto:bryan@serverstack.com" target="_blank"><span style="color:#1155CC">bryan@serverstack.com</span></a></u></span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";background:white"><o:p></o:p></span></p></div></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#888888;background:white"><o:p> </o:p></span></p></div><div><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333;background:white">Server</span></b><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#FF6600;background:white">Stack</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222;background:white"> </span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#999999;background:white">| Scale Big</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#888888;background:white"><o:p></o:p></span></p></div></div><p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p><div><p class="MsoNormal">On Sat, Mar 8, 2014 at 10:57 AM, Frank Bulk <<a href="mailto:frnkblk@iname.com" target="_blank">frnkblk@iname.com</a>> wrote:<o:p></o:p></p><blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><div><div><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">We’ve seen more DDoS attacks than normal, too, not just on ourselves, but on other networks where I have visibity. Funny that I saw an email in my inbox from Arbor Networks regarding an NTP DDoS webinar….</span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Frank</span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"> </span><o:p></o:p></p><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> Outages [mailto:<a href="mailto:outages-bounces@outages.org" target="_blank">outages-bounces@outages.org</a>] <b>On Behalf Of </b>Bryan Socha<br><b>Sent:</b> Saturday, March 08, 2014 9:41 AM<br><b>To:</b> <a href="mailto:outages@outages.org" target="_blank">outages@outages.org</a><br><b>Subject:</b> [outages] enough of this ntp bs.</span><o:p></o:p></p><div><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p><div><p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">all week long I'm seeing ntp attacks on provider ips on my router. Enough of this bs, it's time to stand up and block this BS....<o:p></o:p></p></div></div></div></div></blockquote></div><p class="MsoNormal"><o:p> </o:p></p></div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Outages-discussion mailing list</span><br><span><a href="mailto:Outages-discussion@outages.org">Outages-discussion@outages.org</a></span><br><span><a href="https://puck.nether.net/mailman/listinfo/outages-discussion">https://puck.nether.net/mailman/listinfo/outages-discussion</a></span><br></div></blockquote></body></html>