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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I read it as “DNSSEC is not required *<b>in order</b>* to use EDNS0”. In other words, if EDNS0 message size expansion is going to be a factor in DDOS amplification
attacks, that can happen whether DNSSEC is used or not.<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>
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<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">Anthony Rodgers<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Security Analyst<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Michigan Security Operations Center (MiSOC)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">DTMB, Michigan Cyber Security<o:p></o:p></span></p>
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<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"> dns-operations [mailto:dns-operations-bounces@dns-oarc.net]
<b>On Behalf Of </b>David Conrad<br>
<b>Sent:</b> Wednesday, January 06, 2016 16:31<br>
<b>To:</b> Paul Vixie <paul@redbarn.org><br>
<b>Cc:</b> dns-operations@dns-oarc.net<br>
<b>Subject:</b> Re: [dns-operations] my answer to "i heard dnssec was a ddos threat, should i avoid it?" on serverfault today<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Paul,<o:p></o:p></p>
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<p class="MsoNormal">On Jan 6, 2016, at 12:50 PM, Paul Vixie <<a href="mailto:paul@redbarn.org">paul@redbarn.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Droid Sans Mono",serif"><a href="http://serverfault.com/a/747213/330420">http://serverfault.com/a/747213/330420</a><o:p></o:p></span></p>
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<p class="MsoNormal">"DNSSEC is not required to use EDNS0"<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal">-drc<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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