<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">I was one of the people affected back in 2015 (ipv6 DHCP-PD replies were getting dropped) </div><div class=""><br class=""></div>See if you can collect data on which model of NTD each client has, NBN had at least two in the field at that point and only one version was affected. <div class=""><br class=""></div><div class="">A firmware upgrade of the NTD fixed it for me.<br class=""><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 8 Sep 2016, at 11:47 AM, Philip Loenneker <<a href="mailto:Philip.Loenneker@tasmanet.com.au" class="">Philip.Loenneker@tasmanet.com.au</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">An update for those interested…<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">We got some tech savvy people who were experiencing the issue. They plugged a Windows PC into the NTD allowed it to get DHCP with no issue. Going back to a Mikrotik router has the problem. Changing interface on the Mikrotik (to change the MAC address) showed the same problem. So I’m currently leaning toward sit being the same (or similar) issue as Patrick pointed out from this AusNOG post back in December:<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><a href="http://lists.ausnog.net/pipermail/ausnog/2015-December/033838.html" style="color: purple; text-decoration: underline;" class="">http://lists.ausnog.net/pipermail/ausnog/2015-December/033838.html</a><o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">We are seeing similar issues on Netgear and other CPEs. But it is very inconsistent – the exact same routers with the same firmware on other services work fine. And these services all worked ok 24 hours ago. If this is the issue from the post above, then it appears it is appearing via a firmware update on the NTD, not just a hardware update.<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><o:p class=""> </o:p></span></div><div class=""><div style="border-style: solid none none; border-top-color: rgb(225, 225, 225); border-top-width: 1pt; padding: 3pt 0cm 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class=""><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif;" class="">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="Apple-converted-space"> </span>Philip Loenneker<span class="Apple-converted-space"> </span><br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Thursday, 8 September 2016 11:05 AM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span><a href="mailto:ausnog@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">ausnog@lists.ausnog.net</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>RE: [AusNOG] Repeated NBN traffic flow issue<o:p class=""></o:p></span></div></div></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Thanks Brendan. Were those fibre or wireless services?<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""><o:p class=""> </o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><b class=""><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif;" class="">From:</span></b><span lang="EN-US" style="font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span class="Apple-converted-space"> </span>Brendan Halley [<a href="mailto:brendan@halley.net.au" class="">mailto:brendan@halley.net.au</a>]<span class="Apple-converted-space"> </span><br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Thursday, 8 September 2016 10:57 AM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span>Philip Loenneker <<a href="mailto:Philip.Loenneker@tasmanet.com.au" class="">Philip.Loenneker@tasmanet.com.au</a>><br class=""><b class="">Cc:</b><span class="Apple-converted-space"> </span><a href="mailto:ausnog@lists.ausnog.net" class="">ausnog@lists.ausnog.net</a><br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [AusNOG] Repeated NBN traffic flow issue<o:p class=""></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""> </o:p></div><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">I have had this issue personally at two different residences in Tasmania on multiple occasions.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">The only fix I have found is cutting the power to the NTD for ~1 hour then connecting it again and everything seems to work normally. I haven't been able to narrow down the conditions it requires to occur as it's seemingly random.<o:p class=""></o:p></p><p style="margin-right: 0cm; margin-left: 0cm; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Brendan<o:p class=""></o:p></p><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""> </o:p></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">On 8 Sep 2016 9:14 AM, "Philip Loenneker" <<a href="mailto:Philip.Loenneker@tasmanet.com.au" style="color: purple; text-decoration: underline;" class="">Philip.Loenneker@tasmanet.com.au</a>> wrote:<o:p class=""></o:p></div><blockquote style="border-style: none none none solid; border-left-color: rgb(204, 204, 204); border-left-width: 1pt; padding: 0cm 0cm 0cm 6pt; margin: 5pt 0cm 5pt 4.8pt;" class=""><div class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class="">Hi all,<o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span lang="EN-US" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span lang="EN-US" class="">A regular problem we have with our fibre and wireless NBN tails is that we get what appears to be one-way traffic. We see DHCP requests from the CPE (we use IPoE), we respond to them, but the CPE does not get the response. We have confirmed this on several occassions with packet captures at the NTD. I think we’ve had over 20 cases this year, and we appear to have gotten 4 cases in the past 24 hours. These are services that were working fine, and suddenly stopped. Lodging tickets with NBN is usually very drawn out, with the services ending up back online eventually, with responses that range from “we detected a problem and fixed it” to “everything checked out ok, no issues” but they mysteriously start working again. Naturally, we do things like isolation tests, port resets, change of CPE etc.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span lang="EN-US" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span lang="EN-US" class="">Has anyone else had any similar issues? Does anyone have any tips they can provide to help us expedite resolution to these issues? I’m sure it’s no surprise to everyone on this list that the customers get angry at us for poor service, despite our part of the connection working correctly.</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span lang="EN-US" class=""> </span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span lang="EN-US" class="">Regards,</span><o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><span lang="EN-US" class="">Philip</span><o:p class=""></o:p></div></div></div><p class="MsoNormal" style="margin: 0cm 0cm 12pt; font-size: 12pt; font-family: 'Times New Roman', serif;"><br class="">_______________________________________________<br class="">AusNOG mailing list<br class=""><a href="mailto:AusNOG@lists.ausnog.net" style="color: purple; text-decoration: underline;" class="">AusNOG@lists.ausnog.net</a><br class=""><a href="http://lists.ausnog.net/mailman/listinfo/ausnog" target="_blank" style="color: purple; text-decoration: underline;" class="">http://lists.ausnog.net/mailman/listinfo/ausnog</a><o:p class=""></o:p></p></blockquote></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: 'Times New Roman', serif;" class=""><o:p class=""> </o:p></div></div></div><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">AusNOG mailing list</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class=""><a href="mailto:AusNOG@lists.ausnog.net" class="">AusNOG@lists.ausnog.net</a></span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class=""><a href="http://lists.ausnog.net/mailman/listinfo/ausnog" class="">http://lists.ausnog.net/mailman/listinfo/ausnog</a></span></div></blockquote></div><br class=""></div></div></body></html>