<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Golly whiz, I have always considered DHCPv6 and RA/SLAAC as configuration tools for end systems. In addition, I have always considered the configuration of end systems to be the (implicit)) responsibility of the end system owner, not the network provider. I would love to find someone who could eloquently articulate why the end system owner (especially in managed environments) can not choose how to configure end systems. <div class=""><br class=""></div><div class="">Why must the availability of these two particular configuration tools become such a partisan/religious debate. Does it make a significant difference in the cost of providing network services? Does it make a significant difference in the cost of end systems? I can find no evidence of this in the debate.</div><div class=""><br class=""></div><div class="">It seems obvious that (non-superuser) home systems have configuration requirements different from those in managed offices. Getting these satisfied to meet business requirements requires thought at a higher protocol level (such as Business Operations) and division of labor/control is often useful. Forcing end system configuration management into router configurations conflicts with end system change control. In many situations SLAAC, an obviously router-centric function, meets basic addressing requirements without burdening router operations with end system details. It many, often overlapping, situations DHCPv6 offers an orthogonal management point for items such as NTP, DNS, Printers, and more without interfering with managing the routing network. </div><div class=""><br class=""></div><div class="">Wouldn’t it be more cost effect in the long term to simply make SLAAC and DHCPv6 cooperative and complementary attributes of end-to-end networking? </div><div class=""><br class=""></div><div class="">Could we then work on larger problems, such as implementing secure route distribution?</div><div class=""><br class=""></div><div class="">Show me my error and I will repent.</div><div class=""><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-east-asian: normal; font-variant-position: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-east-asian: normal; font-variant-position: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-east-asian: normal; font-variant-position: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-east-asian: normal; font-variant-position: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-east-asian: normal; font-variant-position: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-east-asian: normal; font-variant-position: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px;"><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">James R. Cutler</div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><a href="mailto:James.cutler@consultant.com" class="">James.cutler@consultant.com</a></div><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">GPG keys: <a href="hkps://hkps.pool.sks-keyservers.net" class="">hkps://hkps.pool.sks-keyservers.net</a></div></div><br class="Apple-interchange-newline"></span></span></span></span><br class="Apple-interchange-newline"></span></div></span></div></div></div>
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<div><br class=""><blockquote type="cite" class=""><div class="">On Mar 31, 2020, at 12:01 PM, Gert Doering <<a href="mailto:gert@space.net" class="">gert@space.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hi,<br class=""><br class="">On Tue, Mar 31, 2020 at 12:17:44PM +0200, Mark Tinka wrote:<br class=""><blockquote type="cite" class="">At my house, I don't even bother with DHCPv6 for DNS. I just use the<br class="">IPv4 ones and let SLAAC assign IPv6 addresses to my devices. Just about<br class="">done with the purist madness around this.<br class=""></blockquote><br class="">"In da house", mDNS usually does the trick nicely for "I want to ssh<br class="">to my wife's laptop to fix her time machine backup".<br class=""><br class="">As soon as you have a larger routed network, mDNS falls short, and <br class="">(unless you have a windows domain) there are no existing mechanisms<br class="">to put a SLAAC v6 address into DNS...<br class=""><br class="">Yes, thanks, IETF. Well done.<br class=""><br class="">Gert Doering<br class=""> -- NetMaster<br class="">-- <br class="">have you enabled IPv6 on something today...?<br class=""><br class="">SpaceNet AG Vorstand: Sebastian v. Bomhard, Michael Emmer<br class="">Joseph-Dollinger-Bogen 14 Aufsichtsratsvors.: A. Grundner-Culemann<br class="">D-80807 Muenchen HRB: 136055 (AG Muenchen)<br class="">Tel: +49 (0)89/32356-444 USt-IdNr.: DE813185279<br class=""></div></div></blockquote></div><br class=""></div></body></html>