<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><!--
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--></style></head><body lang=FR-CH link=blue vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Hello,</p><p class=MsoNormal>The 3 nodes are running Ubuntu 20.04 and using libvirt. The instance are Ubuntu or debian based. The openstack virtual network is configured with both a v4 and a v6 dhcp pool. The instance should be getting both v4 and v6 (on the same interface) but the instance that are hosted on the compute node only get v4. If i run the dhclient -6 -r the instance actually get it’s ipv6 but it’s wrongly configured with a /128 (instead of 64) and no route.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Michael</p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='border:none;padding:0cm'><b>De : </b><a href="mailto:katonalala@gmail.com">Lajos Katona</a><br><b>Envoyé le :</b>mardi, 20 septembre 2022 09:39<br><b>À : </b><a href="mailto:mhazan@mandint.org">mhazan@mandint.org</a><br><b>Cc : </b><a href="mailto:openstack-discuss@lists.openstack.org">openstack-discuss@lists.openstack.org</a><br><b>Objet :</b>Re: [neutron][nova][ipv6]instance on compute node not getting dhcpv6</p></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Hi,</p><div><p class=MsoNormal>Do you have some more details of your environment, which backend you use? OVS?</p></div><div><p class=MsoNormal>Your VMs have both IPv4 and v6 addresses and you mean that they got IPv4 as expected?</p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Lajos</p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><<a href="mailto:mhazan@mandint.org">mhazan@mandint.org</a>> ezt írta (időpont: 2022. szept. 19., H, 16:19):</p></div></div><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:4.8pt'>Hello all,<br><br>i manage a small openstack cluster installed via Ubuntu package, it has <br>been upgraded since the day of Newton and currently running Victoria. it <br>started as a single node with the basic services installed, later a <br>dedicated storage node and compute node were added. after upgrading to <br>victoria, any instance that boot on the dedicated compute node start up <br>but fails to get it's global ipv6 via stateful dhcp6, only <br>linklocal(fe80) ip is shown by the instance. The ipv6 is created in <br>openstack, the dhcpv4 works and there are no issue if the instance boot <br>on the "old" all in one node. i can manually allocate (by editing the <br>instance network config file) the ipv6 config and it works. any pointer <br>as to what could cause this issue ?<br><br>BR, Michael</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>