From 8dabd4efbad9c6180c45cdbb9621aefa50a3382d Mon Sep 17 00:00:00 2001
From: Matthieu Imbert <matthieu.imbert@inria.fr>
Date: Mon, 2 Nov 2020 17:22:43 +0100
Subject: [PATCH] update ref repo

---
 .../grenoble/clusters/dahu/nodes/dahu-1.json  | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-10.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-11.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-12.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-13.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-14.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-15.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-16.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-17.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-18.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-19.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-2.json  | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-20.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-21.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-22.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-23.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-24.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-25.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-26.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-27.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-28.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-29.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-3.json  | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-30.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-31.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-32.json | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-4.json  | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-5.json  | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-6.json  | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-7.json  | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-8.json  | 36 +++++++++----------
 .../grenoble/clusters/dahu/nodes/dahu-9.json  | 36 +++++++++----------
 .../clusters/troll/nodes/troll-1.json         | 36 +++++++++----------
 .../clusters/troll/nodes/troll-2.json         | 36 +++++++++----------
 .../clusters/troll/nodes/troll-3.json         | 36 +++++++++----------
 .../clusters/troll/nodes/troll-4.json         | 36 +++++++++----------
 .../grenoble/clusters/yeti/nodes/yeti-1.json  | 36 +++++++++----------
 .../grenoble/clusters/yeti/nodes/yeti-2.json  | 36 +++++++++----------
 .../grenoble/clusters/yeti/nodes/yeti-3.json  | 36 +++++++++----------
 .../grenoble/clusters/yeti/nodes/yeti-4.json  | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-1.json     | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-10.json    | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-11.json    | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-12.json    | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-13.json    | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-14.json    | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-15.json    | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-2.json     | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-3.json     | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-4.json     | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-5.json     | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-6.json     | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-7.json     | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-8.json     | 36 +++++++++----------
 .../clusters/chetemi/nodes/chetemi-9.json     | 36 +++++++++----------
 .../clusters/chiclet/nodes/chiclet-1.json     | 36 +++++++++----------
 .../clusters/chiclet/nodes/chiclet-2.json     | 36 +++++++++----------
 .../clusters/chiclet/nodes/chiclet-3.json     | 36 +++++++++----------
 .../clusters/chiclet/nodes/chiclet-4.json     | 36 +++++++++----------
 .../clusters/chiclet/nodes/chiclet-5.json     | 36 +++++++++----------
 .../clusters/chiclet/nodes/chiclet-6.json     | 36 +++++++++----------
 .../clusters/chiclet/nodes/chiclet-7.json     | 36 +++++++++----------
 .../clusters/chiclet/nodes/chiclet-8.json     | 36 +++++++++----------
 .../clusters/chifflet/nodes/chifflet-1.json   | 36 +++++++++----------
 .../clusters/chifflet/nodes/chifflet-2.json   | 36 +++++++++----------
 .../clusters/chifflet/nodes/chifflet-3.json   | 36 +++++++++----------
 .../clusters/chifflet/nodes/chifflet-4.json   | 36 +++++++++----------
 .../clusters/chifflet/nodes/chifflet-5.json   | 36 +++++++++----------
 .../clusters/chifflet/nodes/chifflet-6.json   | 36 +++++++++----------
 .../clusters/chifflet/nodes/chifflet-7.json   | 36 +++++++++----------
 .../clusters/chifflet/nodes/chifflet-8.json   | 36 +++++++++----------
 .../clusters/chifflot/nodes/chifflot-1.json   | 36 +++++++++----------
 .../clusters/chifflot/nodes/chifflot-2.json   | 36 +++++++++----------
 .../clusters/chifflot/nodes/chifflot-3.json   | 36 +++++++++----------
 .../clusters/chifflot/nodes/chifflot-4.json   | 36 +++++++++----------
 .../clusters/chifflot/nodes/chifflot-5.json   | 36 +++++++++----------
 .../clusters/chifflot/nodes/chifflot-6.json   | 36 +++++++++----------
 .../clusters/chifflot/nodes/chifflot-7.json   | 36 +++++++++----------
 .../clusters/chifflot/nodes/chifflot-8.json   | 36 +++++++++----------
 .../petitprince/nodes/petitprince-1.json      | 36 +++++++++----------
 .../petitprince/nodes/petitprince-10.json     | 36 +++++++++----------
 .../petitprince/nodes/petitprince-11.json     | 36 +++++++++----------
 .../petitprince/nodes/petitprince-13.json     | 36 +++++++++----------
 .../petitprince/nodes/petitprince-14.json     | 36 +++++++++----------
 .../petitprince/nodes/petitprince-15.json     | 36 +++++++++----------
 .../petitprince/nodes/petitprince-16.json     | 36 +++++++++----------
 .../petitprince/nodes/petitprince-2.json      | 36 +++++++++----------
 .../petitprince/nodes/petitprince-3.json      | 36 +++++++++----------
 .../petitprince/nodes/petitprince-4.json      | 36 +++++++++----------
 .../petitprince/nodes/petitprince-5.json      | 36 +++++++++----------
 .../petitprince/nodes/petitprince-6.json      | 36 +++++++++----------
 .../petitprince/nodes/petitprince-7.json      | 36 +++++++++----------
 .../petitprince/nodes/petitprince-8.json      | 36 +++++++++----------
 .../petitprince/nodes/petitprince-9.json      | 36 +++++++++----------
 .../lyon/clusters/gemini/nodes/gemini-1.json  | 36 +++++++++----------
 .../lyon/clusters/gemini/nodes/gemini-2.json  | 36 +++++++++----------
 .../clusters/hercule/nodes/hercule-1.json     | 36 +++++++++----------
 .../clusters/hercule/nodes/hercule-2.json     | 36 +++++++++----------
 .../clusters/hercule/nodes/hercule-3.json     | 36 +++++++++----------
 .../clusters/hercule/nodes/hercule-4.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-1.json      | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-10.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-11.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-12.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-13.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-14.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-15.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-16.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-17.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-18.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-19.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-2.json      | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-20.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-21.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-22.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-23.json     | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-3.json      | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-4.json      | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-5.json      | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-6.json      | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-7.json      | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-8.json      | 36 +++++++++----------
 .../lyon/clusters/nova/nodes/nova-9.json      | 36 +++++++++----------
 .../lyon/clusters/orion/nodes/orion-1.json    | 36 +++++++++----------
 .../lyon/clusters/orion/nodes/orion-2.json    | 36 +++++++++----------
 .../lyon/clusters/orion/nodes/orion-3.json    | 36 +++++++++----------
 .../lyon/clusters/orion/nodes/orion-4.json    | 36 +++++++++----------
 .../lyon/clusters/pyxis/nodes/pyxis-1.json    | 36 +++++++++----------
 .../lyon/clusters/pyxis/nodes/pyxis-2.json    | 36 +++++++++----------
 .../lyon/clusters/pyxis/nodes/pyxis-3.json    | 36 +++++++++----------
 .../lyon/clusters/pyxis/nodes/pyxis-4.json    | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-1.json        | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-11.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-12.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-13.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-14.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-15.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-16.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-17.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-18.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-19.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-2.json        | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-20.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-24.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-27.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-29.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-3.json        | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-30.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-31.json       | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-4.json        | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-5.json        | 36 +++++++++----------
 .../sagittaire/nodes/sagittaire-6.json        | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-1.json  | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-10.json | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-11.json | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-12.json | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-13.json | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-15.json | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-2.json  | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-3.json  | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-4.json  | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-5.json  | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-6.json  | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-7.json  | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-8.json  | 36 +++++++++----------
 .../lyon/clusters/taurus/nodes/taurus-9.json  | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-1.json   | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-10.json  | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-11.json  | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-12.json  | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-13.json  | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-2.json   | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-3.json   | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-4.json   | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-5.json   | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-6.json   | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-7.json   | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-8.json   | 36 +++++++++----------
 .../clusters/graffiti/nodes/graffiti-9.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-1.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-10.json  | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-11.json  | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-12.json  | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-13.json  | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-14.json  | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-15.json  | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-16.json  | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-2.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-3.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-4.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-5.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-6.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-7.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-8.json   | 36 +++++++++----------
 .../clusters/graoully/nodes/graoully-9.json   | 36 +++++++++----------
 .../clusters/graphique/nodes/graphique-1.json | 36 +++++++++----------
 .../clusters/graphique/nodes/graphique-2.json | 36 +++++++++----------
 .../clusters/graphique/nodes/graphique-3.json | 36 +++++++++----------
 .../clusters/graphique/nodes/graphique-4.json | 36 +++++++++----------
 .../clusters/graphique/nodes/graphique-5.json | 36 +++++++++----------
 .../clusters/graphique/nodes/graphique-6.json | 36 +++++++++----------
 .../clusters/graphite/nodes/graphite-1.json   | 36 +++++++++----------
 .../clusters/graphite/nodes/graphite-2.json   | 36 +++++++++----------
 .../clusters/graphite/nodes/graphite-3.json   | 36 +++++++++----------
 .../clusters/graphite/nodes/graphite-4.json   | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-1.json | 36 +++++++++----------
 .../clusters/grappe/nodes/grappe-10.json      | 36 +++++++++----------
 .../clusters/grappe/nodes/grappe-11.json      | 36 +++++++++----------
 .../clusters/grappe/nodes/grappe-12.json      | 36 +++++++++----------
 .../clusters/grappe/nodes/grappe-13.json      | 36 +++++++++----------
 .../clusters/grappe/nodes/grappe-14.json      | 36 +++++++++----------
 .../clusters/grappe/nodes/grappe-15.json      | 36 +++++++++----------
 .../clusters/grappe/nodes/grappe-16.json      | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-2.json | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-3.json | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-4.json | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-5.json | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-6.json | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-7.json | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-8.json | 36 +++++++++----------
 .../nancy/clusters/grappe/nodes/grappe-9.json | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-1.json | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-10.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-11.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-12.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-13.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-14.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-15.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-16.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-17.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-18.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-19.json      | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-2.json | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-20.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-21.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-22.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-23.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-24.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-25.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-26.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-27.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-28.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-29.json      | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-3.json | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-30.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-31.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-32.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-33.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-34.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-35.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-36.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-37.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-38.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-39.json      | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-4.json | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-40.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-41.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-42.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-43.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-44.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-45.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-46.json      | 36 +++++++++----------
 .../clusters/grcinq/nodes/grcinq-47.json      | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-5.json | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-6.json | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-7.json | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-8.json | 36 +++++++++----------
 .../nancy/clusters/grcinq/nodes/grcinq-9.json | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-1.json   | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-10.json  | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-11.json  | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-12.json  | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-13.json  | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-14.json  | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-2.json   | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-3.json   | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-4.json   | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-5.json   | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-6.json   | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-7.json   | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-8.json   | 36 +++++++++----------
 .../nancy/clusters/grele/nodes/grele-9.json   | 36 +++++++++----------
 .../clusters/grimani/nodes/grimani-1.json     | 36 +++++++++----------
 .../clusters/grimani/nodes/grimani-2.json     | 36 +++++++++----------
 .../clusters/grimani/nodes/grimani-3.json     | 36 +++++++++----------
 .../clusters/grimani/nodes/grimani-4.json     | 36 +++++++++----------
 .../clusters/grimani/nodes/grimani-5.json     | 36 +++++++++----------
 .../clusters/grimani/nodes/grimani-6.json     | 36 +++++++++----------
 .../clusters/grimoire/nodes/grimoire-1.json   | 36 +++++++++----------
 .../clusters/grimoire/nodes/grimoire-2.json   | 36 +++++++++----------
 .../clusters/grimoire/nodes/grimoire-3.json   | 36 +++++++++----------
 .../clusters/grimoire/nodes/grimoire-4.json   | 36 +++++++++----------
 .../clusters/grimoire/nodes/grimoire-5.json   | 36 +++++++++----------
 .../clusters/grimoire/nodes/grimoire-6.json   | 36 +++++++++----------
 .../clusters/grimoire/nodes/grimoire-7.json   | 36 +++++++++----------
 .../clusters/grimoire/nodes/grimoire-8.json   | 36 +++++++++----------
 .../nancy/clusters/grisou/nodes/grisou-1.json | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-10.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-11.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-12.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-13.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-14.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-15.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-16.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-17.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-18.json      | 36 +++++++++----------
 .../clusters/grisou/nodes/grisou-19.json      | 36 +++++++++----------
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 .../clusters/parapide/nodes/parapide-12.json  | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-13.json  | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-16.json  | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-18.json  | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-19.json  | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-2.json   | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-21.json  | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-24.json  | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-25.json  | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-3.json   | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-5.json   | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-6.json   | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-7.json   | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-8.json   | 36 +++++++++----------
 .../clusters/parapide/nodes/parapide-9.json   | 36 +++++++++----------
 .../clusters/parapluie/nodes/parapluie-1.json | 36 +++++++++----------
 .../parapluie/nodes/parapluie-11.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-12.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-15.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-19.json         | 36 +++++++++----------
 .../clusters/parapluie/nodes/parapluie-2.json | 36 +++++++++----------
 .../parapluie/nodes/parapluie-20.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-21.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-22.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-25.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-28.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-31.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-32.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-35.json         | 36 +++++++++----------
 .../parapluie/nodes/parapluie-38.json         | 36 +++++++++----------
 .../clusters/parapluie/nodes/parapluie-9.json | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-1.json   | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-10.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-11.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-12.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-13.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-14.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-15.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-16.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-17.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-18.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-19.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-2.json   | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-20.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-21.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-22.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-23.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-24.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-25.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-26.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-27.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-28.json  | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-3.json   | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-4.json   | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-5.json   | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-6.json   | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-7.json   | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-8.json   | 36 +++++++++----------
 .../clusters/parasilo/nodes/parasilo-9.json   | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-1.json | 36 +++++++++----------
 .../paravance/nodes/paravance-10.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-11.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-12.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-13.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-14.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-15.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-16.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-17.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-18.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-19.json         | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-2.json | 36 +++++++++----------
 .../paravance/nodes/paravance-20.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-21.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-22.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-23.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-24.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-25.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-26.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-27.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-28.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-29.json         | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-3.json | 36 +++++++++----------
 .../paravance/nodes/paravance-30.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-31.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-32.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-33.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-34.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-35.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-36.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-37.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-38.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-39.json         | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-4.json | 36 +++++++++----------
 .../paravance/nodes/paravance-40.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-41.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-42.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-43.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-44.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-45.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-46.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-47.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-48.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-49.json         | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-5.json | 36 +++++++++----------
 .../paravance/nodes/paravance-50.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-51.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-52.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-53.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-54.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-55.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-56.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-57.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-58.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-59.json         | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-6.json | 36 +++++++++----------
 .../paravance/nodes/paravance-60.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-61.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-62.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-63.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-64.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-65.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-66.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-67.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-68.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-69.json         | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-7.json | 36 +++++++++----------
 .../paravance/nodes/paravance-70.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-71.json         | 36 +++++++++----------
 .../paravance/nodes/paravance-72.json         | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-8.json | 36 +++++++++----------
 .../clusters/paravance/nodes/paravance-9.json | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-1.json      | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-10.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-11.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-12.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-14.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-15.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-16.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-17.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-18.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-19.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-2.json      | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-20.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-21.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-22.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-23.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-24.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-25.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-26.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-27.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-28.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-29.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-3.json      | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-30.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-31.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-32.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-33.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-34.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-35.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-36.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-37.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-38.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-39.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-4.json      | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-40.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-41.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-42.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-43.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-44.json     | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-5.json      | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-6.json      | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-7.json      | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-8.json      | 36 +++++++++----------
 .../sophia/clusters/uvb/nodes/uvb-9.json      | 36 +++++++++----------
 794 files changed, 14292 insertions(+), 14292 deletions(-)

diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json
index 86d6b379ab2..7c879065ad6 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::1",
-      "kavlan-11": "2001:660:4406:1a0:105::1",
-      "kavlan-12": "2001:660:4406:2a0:105::1",
-      "kavlan-13": "2001:660:4406:4a0:105::1",
-      "kavlan-14": "2001:660:4406:5a0:105::1",
-      "kavlan-16": "2001:660:4406:7a0:105::1",
-      "kavlan-18": "2001:660:4406:8a0:105::1",
-      "kavlan-2": "2001:660:4406:181:5::1",
-      "kavlan-20": "2001:660:4406:3a0:105::1",
-      "kavlan-21": "2001:660:4406:6a0:105::1",
-      "kavlan-3": "2001:660:4406:182:5::1",
-      "kavlan-4": "2001:660:4406:190:5::1",
-      "kavlan-5": "2001:660:4406:191:5::1",
-      "kavlan-6": "2001:660:4406:192:5::1",
-      "kavlan-7": "2001:660:4406:193:5::1",
-      "kavlan-8": "2001:660:4406:194:5::1",
-      "kavlan-9": "2001:660:4406:195:5::1"
+      "kavlan-1": "2001:660:4406:180:5:0::1",
+      "kavlan-11": "2001:660:4406:1a0:105:0::1",
+      "kavlan-12": "2001:660:4406:2a0:105:0::1",
+      "kavlan-13": "2001:660:4406:4a0:105:0::1",
+      "kavlan-14": "2001:660:4406:5a0:105:0::1",
+      "kavlan-16": "2001:660:4406:7a0:105:0::1",
+      "kavlan-18": "2001:660:4406:8a0:105:0::1",
+      "kavlan-2": "2001:660:4406:181:5:0::1",
+      "kavlan-20": "2001:660:4406:3a0:105:0::1",
+      "kavlan-21": "2001:660:4406:6a0:105:0::1",
+      "kavlan-3": "2001:660:4406:182:5:0::1",
+      "kavlan-4": "2001:660:4406:190:5:0::1",
+      "kavlan-5": "2001:660:4406:191:5:0::1",
+      "kavlan-6": "2001:660:4406:192:5:0::1",
+      "kavlan-7": "2001:660:4406:193:5:0::1",
+      "kavlan-8": "2001:660:4406:194:5:0::1",
+      "kavlan-9": "2001:660:4406:195:5:0::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.1",
-      "ip6": "2001:660:4406:100:5::1",
+      "ip6": "2001:660:4406:100:5:0::1",
       "kavlan": true,
       "mac": "3c:fd:fe:55:eb:a0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json
index c7744978724..91a23f067f0 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::a",
-      "kavlan-11": "2001:660:4406:1a0:105::a",
-      "kavlan-12": "2001:660:4406:2a0:105::a",
-      "kavlan-13": "2001:660:4406:4a0:105::a",
-      "kavlan-14": "2001:660:4406:5a0:105::a",
-      "kavlan-16": "2001:660:4406:7a0:105::a",
-      "kavlan-18": "2001:660:4406:8a0:105::a",
-      "kavlan-2": "2001:660:4406:181:5::a",
-      "kavlan-20": "2001:660:4406:3a0:105::a",
-      "kavlan-21": "2001:660:4406:6a0:105::a",
-      "kavlan-3": "2001:660:4406:182:5::a",
-      "kavlan-4": "2001:660:4406:190:5::a",
-      "kavlan-5": "2001:660:4406:191:5::a",
-      "kavlan-6": "2001:660:4406:192:5::a",
-      "kavlan-7": "2001:660:4406:193:5::a",
-      "kavlan-8": "2001:660:4406:194:5::a",
-      "kavlan-9": "2001:660:4406:195:5::a"
+      "kavlan-1": "2001:660:4406:180:5:0::a",
+      "kavlan-11": "2001:660:4406:1a0:105:0::a",
+      "kavlan-12": "2001:660:4406:2a0:105:0::a",
+      "kavlan-13": "2001:660:4406:4a0:105:0::a",
+      "kavlan-14": "2001:660:4406:5a0:105:0::a",
+      "kavlan-16": "2001:660:4406:7a0:105:0::a",
+      "kavlan-18": "2001:660:4406:8a0:105:0::a",
+      "kavlan-2": "2001:660:4406:181:5:0::a",
+      "kavlan-20": "2001:660:4406:3a0:105:0::a",
+      "kavlan-21": "2001:660:4406:6a0:105:0::a",
+      "kavlan-3": "2001:660:4406:182:5:0::a",
+      "kavlan-4": "2001:660:4406:190:5:0::a",
+      "kavlan-5": "2001:660:4406:191:5:0::a",
+      "kavlan-6": "2001:660:4406:192:5:0::a",
+      "kavlan-7": "2001:660:4406:193:5:0::a",
+      "kavlan-8": "2001:660:4406:194:5:0::a",
+      "kavlan-9": "2001:660:4406:195:5:0::a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.10",
-      "ip6": "2001:660:4406:100:5::a",
+      "ip6": "2001:660:4406:100:5:0::a",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ec:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json
index 6f17430e0d8..430e11fca39 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::b",
-      "kavlan-11": "2001:660:4406:1a0:105::b",
-      "kavlan-12": "2001:660:4406:2a0:105::b",
-      "kavlan-13": "2001:660:4406:4a0:105::b",
-      "kavlan-14": "2001:660:4406:5a0:105::b",
-      "kavlan-16": "2001:660:4406:7a0:105::b",
-      "kavlan-18": "2001:660:4406:8a0:105::b",
-      "kavlan-2": "2001:660:4406:181:5::b",
-      "kavlan-20": "2001:660:4406:3a0:105::b",
-      "kavlan-21": "2001:660:4406:6a0:105::b",
-      "kavlan-3": "2001:660:4406:182:5::b",
-      "kavlan-4": "2001:660:4406:190:5::b",
-      "kavlan-5": "2001:660:4406:191:5::b",
-      "kavlan-6": "2001:660:4406:192:5::b",
-      "kavlan-7": "2001:660:4406:193:5::b",
-      "kavlan-8": "2001:660:4406:194:5::b",
-      "kavlan-9": "2001:660:4406:195:5::b"
+      "kavlan-1": "2001:660:4406:180:5:0::b",
+      "kavlan-11": "2001:660:4406:1a0:105:0::b",
+      "kavlan-12": "2001:660:4406:2a0:105:0::b",
+      "kavlan-13": "2001:660:4406:4a0:105:0::b",
+      "kavlan-14": "2001:660:4406:5a0:105:0::b",
+      "kavlan-16": "2001:660:4406:7a0:105:0::b",
+      "kavlan-18": "2001:660:4406:8a0:105:0::b",
+      "kavlan-2": "2001:660:4406:181:5:0::b",
+      "kavlan-20": "2001:660:4406:3a0:105:0::b",
+      "kavlan-21": "2001:660:4406:6a0:105:0::b",
+      "kavlan-3": "2001:660:4406:182:5:0::b",
+      "kavlan-4": "2001:660:4406:190:5:0::b",
+      "kavlan-5": "2001:660:4406:191:5:0::b",
+      "kavlan-6": "2001:660:4406:192:5:0::b",
+      "kavlan-7": "2001:660:4406:193:5:0::b",
+      "kavlan-8": "2001:660:4406:194:5:0::b",
+      "kavlan-9": "2001:660:4406:195:5:0::b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.11",
-      "ip6": "2001:660:4406:100:5::b",
+      "ip6": "2001:660:4406:100:5:0::b",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e8:20",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json
index 9cb12b2f50e..ad59369c330 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::c",
-      "kavlan-11": "2001:660:4406:1a0:105::c",
-      "kavlan-12": "2001:660:4406:2a0:105::c",
-      "kavlan-13": "2001:660:4406:4a0:105::c",
-      "kavlan-14": "2001:660:4406:5a0:105::c",
-      "kavlan-16": "2001:660:4406:7a0:105::c",
-      "kavlan-18": "2001:660:4406:8a0:105::c",
-      "kavlan-2": "2001:660:4406:181:5::c",
-      "kavlan-20": "2001:660:4406:3a0:105::c",
-      "kavlan-21": "2001:660:4406:6a0:105::c",
-      "kavlan-3": "2001:660:4406:182:5::c",
-      "kavlan-4": "2001:660:4406:190:5::c",
-      "kavlan-5": "2001:660:4406:191:5::c",
-      "kavlan-6": "2001:660:4406:192:5::c",
-      "kavlan-7": "2001:660:4406:193:5::c",
-      "kavlan-8": "2001:660:4406:194:5::c",
-      "kavlan-9": "2001:660:4406:195:5::c"
+      "kavlan-1": "2001:660:4406:180:5:0::c",
+      "kavlan-11": "2001:660:4406:1a0:105:0::c",
+      "kavlan-12": "2001:660:4406:2a0:105:0::c",
+      "kavlan-13": "2001:660:4406:4a0:105:0::c",
+      "kavlan-14": "2001:660:4406:5a0:105:0::c",
+      "kavlan-16": "2001:660:4406:7a0:105:0::c",
+      "kavlan-18": "2001:660:4406:8a0:105:0::c",
+      "kavlan-2": "2001:660:4406:181:5:0::c",
+      "kavlan-20": "2001:660:4406:3a0:105:0::c",
+      "kavlan-21": "2001:660:4406:6a0:105:0::c",
+      "kavlan-3": "2001:660:4406:182:5:0::c",
+      "kavlan-4": "2001:660:4406:190:5:0::c",
+      "kavlan-5": "2001:660:4406:191:5:0::c",
+      "kavlan-6": "2001:660:4406:192:5:0::c",
+      "kavlan-7": "2001:660:4406:193:5:0::c",
+      "kavlan-8": "2001:660:4406:194:5:0::c",
+      "kavlan-9": "2001:660:4406:195:5:0::c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.12",
-      "ip6": "2001:660:4406:100:5::c",
+      "ip6": "2001:660:4406:100:5:0::c",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ef:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json
index 7fc4eede22f..57d3d1a4cfe 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::d",
-      "kavlan-11": "2001:660:4406:1a0:105::d",
-      "kavlan-12": "2001:660:4406:2a0:105::d",
-      "kavlan-13": "2001:660:4406:4a0:105::d",
-      "kavlan-14": "2001:660:4406:5a0:105::d",
-      "kavlan-16": "2001:660:4406:7a0:105::d",
-      "kavlan-18": "2001:660:4406:8a0:105::d",
-      "kavlan-2": "2001:660:4406:181:5::d",
-      "kavlan-20": "2001:660:4406:3a0:105::d",
-      "kavlan-21": "2001:660:4406:6a0:105::d",
-      "kavlan-3": "2001:660:4406:182:5::d",
-      "kavlan-4": "2001:660:4406:190:5::d",
-      "kavlan-5": "2001:660:4406:191:5::d",
-      "kavlan-6": "2001:660:4406:192:5::d",
-      "kavlan-7": "2001:660:4406:193:5::d",
-      "kavlan-8": "2001:660:4406:194:5::d",
-      "kavlan-9": "2001:660:4406:195:5::d"
+      "kavlan-1": "2001:660:4406:180:5:0::d",
+      "kavlan-11": "2001:660:4406:1a0:105:0::d",
+      "kavlan-12": "2001:660:4406:2a0:105:0::d",
+      "kavlan-13": "2001:660:4406:4a0:105:0::d",
+      "kavlan-14": "2001:660:4406:5a0:105:0::d",
+      "kavlan-16": "2001:660:4406:7a0:105:0::d",
+      "kavlan-18": "2001:660:4406:8a0:105:0::d",
+      "kavlan-2": "2001:660:4406:181:5:0::d",
+      "kavlan-20": "2001:660:4406:3a0:105:0::d",
+      "kavlan-21": "2001:660:4406:6a0:105:0::d",
+      "kavlan-3": "2001:660:4406:182:5:0::d",
+      "kavlan-4": "2001:660:4406:190:5:0::d",
+      "kavlan-5": "2001:660:4406:191:5:0::d",
+      "kavlan-6": "2001:660:4406:192:5:0::d",
+      "kavlan-7": "2001:660:4406:193:5:0::d",
+      "kavlan-8": "2001:660:4406:194:5:0::d",
+      "kavlan-9": "2001:660:4406:195:5:0::d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.13",
-      "ip6": "2001:660:4406:100:5::d",
+      "ip6": "2001:660:4406:100:5:0::d",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e3:60",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json
index d4c45d800b7..d869b7cb31e 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::e",
-      "kavlan-11": "2001:660:4406:1a0:105::e",
-      "kavlan-12": "2001:660:4406:2a0:105::e",
-      "kavlan-13": "2001:660:4406:4a0:105::e",
-      "kavlan-14": "2001:660:4406:5a0:105::e",
-      "kavlan-16": "2001:660:4406:7a0:105::e",
-      "kavlan-18": "2001:660:4406:8a0:105::e",
-      "kavlan-2": "2001:660:4406:181:5::e",
-      "kavlan-20": "2001:660:4406:3a0:105::e",
-      "kavlan-21": "2001:660:4406:6a0:105::e",
-      "kavlan-3": "2001:660:4406:182:5::e",
-      "kavlan-4": "2001:660:4406:190:5::e",
-      "kavlan-5": "2001:660:4406:191:5::e",
-      "kavlan-6": "2001:660:4406:192:5::e",
-      "kavlan-7": "2001:660:4406:193:5::e",
-      "kavlan-8": "2001:660:4406:194:5::e",
-      "kavlan-9": "2001:660:4406:195:5::e"
+      "kavlan-1": "2001:660:4406:180:5:0::e",
+      "kavlan-11": "2001:660:4406:1a0:105:0::e",
+      "kavlan-12": "2001:660:4406:2a0:105:0::e",
+      "kavlan-13": "2001:660:4406:4a0:105:0::e",
+      "kavlan-14": "2001:660:4406:5a0:105:0::e",
+      "kavlan-16": "2001:660:4406:7a0:105:0::e",
+      "kavlan-18": "2001:660:4406:8a0:105:0::e",
+      "kavlan-2": "2001:660:4406:181:5:0::e",
+      "kavlan-20": "2001:660:4406:3a0:105:0::e",
+      "kavlan-21": "2001:660:4406:6a0:105:0::e",
+      "kavlan-3": "2001:660:4406:182:5:0::e",
+      "kavlan-4": "2001:660:4406:190:5:0::e",
+      "kavlan-5": "2001:660:4406:191:5:0::e",
+      "kavlan-6": "2001:660:4406:192:5:0::e",
+      "kavlan-7": "2001:660:4406:193:5:0::e",
+      "kavlan-8": "2001:660:4406:194:5:0::e",
+      "kavlan-9": "2001:660:4406:195:5:0::e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.14",
-      "ip6": "2001:660:4406:100:5::e",
+      "ip6": "2001:660:4406:100:5:0::e",
       "kavlan": true,
       "mac": "3c:fd:fe:52:60:8c",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json
index c10e5439bee..f599acd6d2b 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::f",
-      "kavlan-11": "2001:660:4406:1a0:105::f",
-      "kavlan-12": "2001:660:4406:2a0:105::f",
-      "kavlan-13": "2001:660:4406:4a0:105::f",
-      "kavlan-14": "2001:660:4406:5a0:105::f",
-      "kavlan-16": "2001:660:4406:7a0:105::f",
-      "kavlan-18": "2001:660:4406:8a0:105::f",
-      "kavlan-2": "2001:660:4406:181:5::f",
-      "kavlan-20": "2001:660:4406:3a0:105::f",
-      "kavlan-21": "2001:660:4406:6a0:105::f",
-      "kavlan-3": "2001:660:4406:182:5::f",
-      "kavlan-4": "2001:660:4406:190:5::f",
-      "kavlan-5": "2001:660:4406:191:5::f",
-      "kavlan-6": "2001:660:4406:192:5::f",
-      "kavlan-7": "2001:660:4406:193:5::f",
-      "kavlan-8": "2001:660:4406:194:5::f",
-      "kavlan-9": "2001:660:4406:195:5::f"
+      "kavlan-1": "2001:660:4406:180:5:0::f",
+      "kavlan-11": "2001:660:4406:1a0:105:0::f",
+      "kavlan-12": "2001:660:4406:2a0:105:0::f",
+      "kavlan-13": "2001:660:4406:4a0:105:0::f",
+      "kavlan-14": "2001:660:4406:5a0:105:0::f",
+      "kavlan-16": "2001:660:4406:7a0:105:0::f",
+      "kavlan-18": "2001:660:4406:8a0:105:0::f",
+      "kavlan-2": "2001:660:4406:181:5:0::f",
+      "kavlan-20": "2001:660:4406:3a0:105:0::f",
+      "kavlan-21": "2001:660:4406:6a0:105:0::f",
+      "kavlan-3": "2001:660:4406:182:5:0::f",
+      "kavlan-4": "2001:660:4406:190:5:0::f",
+      "kavlan-5": "2001:660:4406:191:5:0::f",
+      "kavlan-6": "2001:660:4406:192:5:0::f",
+      "kavlan-7": "2001:660:4406:193:5:0::f",
+      "kavlan-8": "2001:660:4406:194:5:0::f",
+      "kavlan-9": "2001:660:4406:195:5:0::f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.15",
-      "ip6": "2001:660:4406:100:5::f",
+      "ip6": "2001:660:4406:100:5:0::f",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ed:60",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json
index 98bd9343166..4dee43209f9 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::10",
-      "kavlan-11": "2001:660:4406:1a0:105::10",
-      "kavlan-12": "2001:660:4406:2a0:105::10",
-      "kavlan-13": "2001:660:4406:4a0:105::10",
-      "kavlan-14": "2001:660:4406:5a0:105::10",
-      "kavlan-16": "2001:660:4406:7a0:105::10",
-      "kavlan-18": "2001:660:4406:8a0:105::10",
-      "kavlan-2": "2001:660:4406:181:5::10",
-      "kavlan-20": "2001:660:4406:3a0:105::10",
-      "kavlan-21": "2001:660:4406:6a0:105::10",
-      "kavlan-3": "2001:660:4406:182:5::10",
-      "kavlan-4": "2001:660:4406:190:5::10",
-      "kavlan-5": "2001:660:4406:191:5::10",
-      "kavlan-6": "2001:660:4406:192:5::10",
-      "kavlan-7": "2001:660:4406:193:5::10",
-      "kavlan-8": "2001:660:4406:194:5::10",
-      "kavlan-9": "2001:660:4406:195:5::10"
+      "kavlan-1": "2001:660:4406:180:5:0::10",
+      "kavlan-11": "2001:660:4406:1a0:105:0::10",
+      "kavlan-12": "2001:660:4406:2a0:105:0::10",
+      "kavlan-13": "2001:660:4406:4a0:105:0::10",
+      "kavlan-14": "2001:660:4406:5a0:105:0::10",
+      "kavlan-16": "2001:660:4406:7a0:105:0::10",
+      "kavlan-18": "2001:660:4406:8a0:105:0::10",
+      "kavlan-2": "2001:660:4406:181:5:0::10",
+      "kavlan-20": "2001:660:4406:3a0:105:0::10",
+      "kavlan-21": "2001:660:4406:6a0:105:0::10",
+      "kavlan-3": "2001:660:4406:182:5:0::10",
+      "kavlan-4": "2001:660:4406:190:5:0::10",
+      "kavlan-5": "2001:660:4406:191:5:0::10",
+      "kavlan-6": "2001:660:4406:192:5:0::10",
+      "kavlan-7": "2001:660:4406:193:5:0::10",
+      "kavlan-8": "2001:660:4406:194:5:0::10",
+      "kavlan-9": "2001:660:4406:195:5:0::10"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.16",
-      "ip6": "2001:660:4406:100:5::10",
+      "ip6": "2001:660:4406:100:5:0::10",
       "kavlan": true,
       "mac": "3c:fd:fe:55:eb:60",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json
index 221bca4fb79..fa55f2137eb 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::11",
-      "kavlan-11": "2001:660:4406:1a0:105::11",
-      "kavlan-12": "2001:660:4406:2a0:105::11",
-      "kavlan-13": "2001:660:4406:4a0:105::11",
-      "kavlan-14": "2001:660:4406:5a0:105::11",
-      "kavlan-16": "2001:660:4406:7a0:105::11",
-      "kavlan-18": "2001:660:4406:8a0:105::11",
-      "kavlan-2": "2001:660:4406:181:5::11",
-      "kavlan-20": "2001:660:4406:3a0:105::11",
-      "kavlan-21": "2001:660:4406:6a0:105::11",
-      "kavlan-3": "2001:660:4406:182:5::11",
-      "kavlan-4": "2001:660:4406:190:5::11",
-      "kavlan-5": "2001:660:4406:191:5::11",
-      "kavlan-6": "2001:660:4406:192:5::11",
-      "kavlan-7": "2001:660:4406:193:5::11",
-      "kavlan-8": "2001:660:4406:194:5::11",
-      "kavlan-9": "2001:660:4406:195:5::11"
+      "kavlan-1": "2001:660:4406:180:5:0::11",
+      "kavlan-11": "2001:660:4406:1a0:105:0::11",
+      "kavlan-12": "2001:660:4406:2a0:105:0::11",
+      "kavlan-13": "2001:660:4406:4a0:105:0::11",
+      "kavlan-14": "2001:660:4406:5a0:105:0::11",
+      "kavlan-16": "2001:660:4406:7a0:105:0::11",
+      "kavlan-18": "2001:660:4406:8a0:105:0::11",
+      "kavlan-2": "2001:660:4406:181:5:0::11",
+      "kavlan-20": "2001:660:4406:3a0:105:0::11",
+      "kavlan-21": "2001:660:4406:6a0:105:0::11",
+      "kavlan-3": "2001:660:4406:182:5:0::11",
+      "kavlan-4": "2001:660:4406:190:5:0::11",
+      "kavlan-5": "2001:660:4406:191:5:0::11",
+      "kavlan-6": "2001:660:4406:192:5:0::11",
+      "kavlan-7": "2001:660:4406:193:5:0::11",
+      "kavlan-8": "2001:660:4406:194:5:0::11",
+      "kavlan-9": "2001:660:4406:195:5:0::11"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.17",
-      "ip6": "2001:660:4406:100:5::11",
+      "ip6": "2001:660:4406:100:5:0::11",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c1:f8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json
index 43f41dcbdba..64c0180f545 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::12",
-      "kavlan-11": "2001:660:4406:1a0:105::12",
-      "kavlan-12": "2001:660:4406:2a0:105::12",
-      "kavlan-13": "2001:660:4406:4a0:105::12",
-      "kavlan-14": "2001:660:4406:5a0:105::12",
-      "kavlan-16": "2001:660:4406:7a0:105::12",
-      "kavlan-18": "2001:660:4406:8a0:105::12",
-      "kavlan-2": "2001:660:4406:181:5::12",
-      "kavlan-20": "2001:660:4406:3a0:105::12",
-      "kavlan-21": "2001:660:4406:6a0:105::12",
-      "kavlan-3": "2001:660:4406:182:5::12",
-      "kavlan-4": "2001:660:4406:190:5::12",
-      "kavlan-5": "2001:660:4406:191:5::12",
-      "kavlan-6": "2001:660:4406:192:5::12",
-      "kavlan-7": "2001:660:4406:193:5::12",
-      "kavlan-8": "2001:660:4406:194:5::12",
-      "kavlan-9": "2001:660:4406:195:5::12"
+      "kavlan-1": "2001:660:4406:180:5:0::12",
+      "kavlan-11": "2001:660:4406:1a0:105:0::12",
+      "kavlan-12": "2001:660:4406:2a0:105:0::12",
+      "kavlan-13": "2001:660:4406:4a0:105:0::12",
+      "kavlan-14": "2001:660:4406:5a0:105:0::12",
+      "kavlan-16": "2001:660:4406:7a0:105:0::12",
+      "kavlan-18": "2001:660:4406:8a0:105:0::12",
+      "kavlan-2": "2001:660:4406:181:5:0::12",
+      "kavlan-20": "2001:660:4406:3a0:105:0::12",
+      "kavlan-21": "2001:660:4406:6a0:105:0::12",
+      "kavlan-3": "2001:660:4406:182:5:0::12",
+      "kavlan-4": "2001:660:4406:190:5:0::12",
+      "kavlan-5": "2001:660:4406:191:5:0::12",
+      "kavlan-6": "2001:660:4406:192:5:0::12",
+      "kavlan-7": "2001:660:4406:193:5:0::12",
+      "kavlan-8": "2001:660:4406:194:5:0::12",
+      "kavlan-9": "2001:660:4406:195:5:0::12"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.18",
-      "ip6": "2001:660:4406:100:5::12",
+      "ip6": "2001:660:4406:100:5:0::12",
       "kavlan": true,
       "mac": "3c:fd:fe:54:ac:b8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json
index fa75364093e..3359b056ad2 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::13",
-      "kavlan-11": "2001:660:4406:1a0:105::13",
-      "kavlan-12": "2001:660:4406:2a0:105::13",
-      "kavlan-13": "2001:660:4406:4a0:105::13",
-      "kavlan-14": "2001:660:4406:5a0:105::13",
-      "kavlan-16": "2001:660:4406:7a0:105::13",
-      "kavlan-18": "2001:660:4406:8a0:105::13",
-      "kavlan-2": "2001:660:4406:181:5::13",
-      "kavlan-20": "2001:660:4406:3a0:105::13",
-      "kavlan-21": "2001:660:4406:6a0:105::13",
-      "kavlan-3": "2001:660:4406:182:5::13",
-      "kavlan-4": "2001:660:4406:190:5::13",
-      "kavlan-5": "2001:660:4406:191:5::13",
-      "kavlan-6": "2001:660:4406:192:5::13",
-      "kavlan-7": "2001:660:4406:193:5::13",
-      "kavlan-8": "2001:660:4406:194:5::13",
-      "kavlan-9": "2001:660:4406:195:5::13"
+      "kavlan-1": "2001:660:4406:180:5:0::13",
+      "kavlan-11": "2001:660:4406:1a0:105:0::13",
+      "kavlan-12": "2001:660:4406:2a0:105:0::13",
+      "kavlan-13": "2001:660:4406:4a0:105:0::13",
+      "kavlan-14": "2001:660:4406:5a0:105:0::13",
+      "kavlan-16": "2001:660:4406:7a0:105:0::13",
+      "kavlan-18": "2001:660:4406:8a0:105:0::13",
+      "kavlan-2": "2001:660:4406:181:5:0::13",
+      "kavlan-20": "2001:660:4406:3a0:105:0::13",
+      "kavlan-21": "2001:660:4406:6a0:105:0::13",
+      "kavlan-3": "2001:660:4406:182:5:0::13",
+      "kavlan-4": "2001:660:4406:190:5:0::13",
+      "kavlan-5": "2001:660:4406:191:5:0::13",
+      "kavlan-6": "2001:660:4406:192:5:0::13",
+      "kavlan-7": "2001:660:4406:193:5:0::13",
+      "kavlan-8": "2001:660:4406:194:5:0::13",
+      "kavlan-9": "2001:660:4406:195:5:0::13"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.19",
-      "ip6": "2001:660:4406:100:5::13",
+      "ip6": "2001:660:4406:100:5:0::13",
       "kavlan": true,
       "mac": "3c:fd:fe:54:ac:18",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json
index cbc4018af59..d9a266738b9 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::2",
-      "kavlan-11": "2001:660:4406:1a0:105::2",
-      "kavlan-12": "2001:660:4406:2a0:105::2",
-      "kavlan-13": "2001:660:4406:4a0:105::2",
-      "kavlan-14": "2001:660:4406:5a0:105::2",
-      "kavlan-16": "2001:660:4406:7a0:105::2",
-      "kavlan-18": "2001:660:4406:8a0:105::2",
-      "kavlan-2": "2001:660:4406:181:5::2",
-      "kavlan-20": "2001:660:4406:3a0:105::2",
-      "kavlan-21": "2001:660:4406:6a0:105::2",
-      "kavlan-3": "2001:660:4406:182:5::2",
-      "kavlan-4": "2001:660:4406:190:5::2",
-      "kavlan-5": "2001:660:4406:191:5::2",
-      "kavlan-6": "2001:660:4406:192:5::2",
-      "kavlan-7": "2001:660:4406:193:5::2",
-      "kavlan-8": "2001:660:4406:194:5::2",
-      "kavlan-9": "2001:660:4406:195:5::2"
+      "kavlan-1": "2001:660:4406:180:5:0::2",
+      "kavlan-11": "2001:660:4406:1a0:105:0::2",
+      "kavlan-12": "2001:660:4406:2a0:105:0::2",
+      "kavlan-13": "2001:660:4406:4a0:105:0::2",
+      "kavlan-14": "2001:660:4406:5a0:105:0::2",
+      "kavlan-16": "2001:660:4406:7a0:105:0::2",
+      "kavlan-18": "2001:660:4406:8a0:105:0::2",
+      "kavlan-2": "2001:660:4406:181:5:0::2",
+      "kavlan-20": "2001:660:4406:3a0:105:0::2",
+      "kavlan-21": "2001:660:4406:6a0:105:0::2",
+      "kavlan-3": "2001:660:4406:182:5:0::2",
+      "kavlan-4": "2001:660:4406:190:5:0::2",
+      "kavlan-5": "2001:660:4406:191:5:0::2",
+      "kavlan-6": "2001:660:4406:192:5:0::2",
+      "kavlan-7": "2001:660:4406:193:5:0::2",
+      "kavlan-8": "2001:660:4406:194:5:0::2",
+      "kavlan-9": "2001:660:4406:195:5:0::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.2",
-      "ip6": "2001:660:4406:100:5::2",
+      "ip6": "2001:660:4406:100:5:0::2",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ee:00",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json
index a369a5effb1..1cf37fa8363 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::14",
-      "kavlan-11": "2001:660:4406:1a0:105::14",
-      "kavlan-12": "2001:660:4406:2a0:105::14",
-      "kavlan-13": "2001:660:4406:4a0:105::14",
-      "kavlan-14": "2001:660:4406:5a0:105::14",
-      "kavlan-16": "2001:660:4406:7a0:105::14",
-      "kavlan-18": "2001:660:4406:8a0:105::14",
-      "kavlan-2": "2001:660:4406:181:5::14",
-      "kavlan-20": "2001:660:4406:3a0:105::14",
-      "kavlan-21": "2001:660:4406:6a0:105::14",
-      "kavlan-3": "2001:660:4406:182:5::14",
-      "kavlan-4": "2001:660:4406:190:5::14",
-      "kavlan-5": "2001:660:4406:191:5::14",
-      "kavlan-6": "2001:660:4406:192:5::14",
-      "kavlan-7": "2001:660:4406:193:5::14",
-      "kavlan-8": "2001:660:4406:194:5::14",
-      "kavlan-9": "2001:660:4406:195:5::14"
+      "kavlan-1": "2001:660:4406:180:5:0::14",
+      "kavlan-11": "2001:660:4406:1a0:105:0::14",
+      "kavlan-12": "2001:660:4406:2a0:105:0::14",
+      "kavlan-13": "2001:660:4406:4a0:105:0::14",
+      "kavlan-14": "2001:660:4406:5a0:105:0::14",
+      "kavlan-16": "2001:660:4406:7a0:105:0::14",
+      "kavlan-18": "2001:660:4406:8a0:105:0::14",
+      "kavlan-2": "2001:660:4406:181:5:0::14",
+      "kavlan-20": "2001:660:4406:3a0:105:0::14",
+      "kavlan-21": "2001:660:4406:6a0:105:0::14",
+      "kavlan-3": "2001:660:4406:182:5:0::14",
+      "kavlan-4": "2001:660:4406:190:5:0::14",
+      "kavlan-5": "2001:660:4406:191:5:0::14",
+      "kavlan-6": "2001:660:4406:192:5:0::14",
+      "kavlan-7": "2001:660:4406:193:5:0::14",
+      "kavlan-8": "2001:660:4406:194:5:0::14",
+      "kavlan-9": "2001:660:4406:195:5:0::14"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.20",
-      "ip6": "2001:660:4406:100:5::14",
+      "ip6": "2001:660:4406:100:5:0::14",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c8:38",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json
index 4d13f85c61f..8fc8be0086b 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::15",
-      "kavlan-11": "2001:660:4406:1a0:105::15",
-      "kavlan-12": "2001:660:4406:2a0:105::15",
-      "kavlan-13": "2001:660:4406:4a0:105::15",
-      "kavlan-14": "2001:660:4406:5a0:105::15",
-      "kavlan-16": "2001:660:4406:7a0:105::15",
-      "kavlan-18": "2001:660:4406:8a0:105::15",
-      "kavlan-2": "2001:660:4406:181:5::15",
-      "kavlan-20": "2001:660:4406:3a0:105::15",
-      "kavlan-21": "2001:660:4406:6a0:105::15",
-      "kavlan-3": "2001:660:4406:182:5::15",
-      "kavlan-4": "2001:660:4406:190:5::15",
-      "kavlan-5": "2001:660:4406:191:5::15",
-      "kavlan-6": "2001:660:4406:192:5::15",
-      "kavlan-7": "2001:660:4406:193:5::15",
-      "kavlan-8": "2001:660:4406:194:5::15",
-      "kavlan-9": "2001:660:4406:195:5::15"
+      "kavlan-1": "2001:660:4406:180:5:0::15",
+      "kavlan-11": "2001:660:4406:1a0:105:0::15",
+      "kavlan-12": "2001:660:4406:2a0:105:0::15",
+      "kavlan-13": "2001:660:4406:4a0:105:0::15",
+      "kavlan-14": "2001:660:4406:5a0:105:0::15",
+      "kavlan-16": "2001:660:4406:7a0:105:0::15",
+      "kavlan-18": "2001:660:4406:8a0:105:0::15",
+      "kavlan-2": "2001:660:4406:181:5:0::15",
+      "kavlan-20": "2001:660:4406:3a0:105:0::15",
+      "kavlan-21": "2001:660:4406:6a0:105:0::15",
+      "kavlan-3": "2001:660:4406:182:5:0::15",
+      "kavlan-4": "2001:660:4406:190:5:0::15",
+      "kavlan-5": "2001:660:4406:191:5:0::15",
+      "kavlan-6": "2001:660:4406:192:5:0::15",
+      "kavlan-7": "2001:660:4406:193:5:0::15",
+      "kavlan-8": "2001:660:4406:194:5:0::15",
+      "kavlan-9": "2001:660:4406:195:5:0::15"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.21",
-      "ip6": "2001:660:4406:100:5::15",
+      "ip6": "2001:660:4406:100:5:0::15",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ee:c0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json
index 265e3f119c5..159595a5919 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::16",
-      "kavlan-11": "2001:660:4406:1a0:105::16",
-      "kavlan-12": "2001:660:4406:2a0:105::16",
-      "kavlan-13": "2001:660:4406:4a0:105::16",
-      "kavlan-14": "2001:660:4406:5a0:105::16",
-      "kavlan-16": "2001:660:4406:7a0:105::16",
-      "kavlan-18": "2001:660:4406:8a0:105::16",
-      "kavlan-2": "2001:660:4406:181:5::16",
-      "kavlan-20": "2001:660:4406:3a0:105::16",
-      "kavlan-21": "2001:660:4406:6a0:105::16",
-      "kavlan-3": "2001:660:4406:182:5::16",
-      "kavlan-4": "2001:660:4406:190:5::16",
-      "kavlan-5": "2001:660:4406:191:5::16",
-      "kavlan-6": "2001:660:4406:192:5::16",
-      "kavlan-7": "2001:660:4406:193:5::16",
-      "kavlan-8": "2001:660:4406:194:5::16",
-      "kavlan-9": "2001:660:4406:195:5::16"
+      "kavlan-1": "2001:660:4406:180:5:0::16",
+      "kavlan-11": "2001:660:4406:1a0:105:0::16",
+      "kavlan-12": "2001:660:4406:2a0:105:0::16",
+      "kavlan-13": "2001:660:4406:4a0:105:0::16",
+      "kavlan-14": "2001:660:4406:5a0:105:0::16",
+      "kavlan-16": "2001:660:4406:7a0:105:0::16",
+      "kavlan-18": "2001:660:4406:8a0:105:0::16",
+      "kavlan-2": "2001:660:4406:181:5:0::16",
+      "kavlan-20": "2001:660:4406:3a0:105:0::16",
+      "kavlan-21": "2001:660:4406:6a0:105:0::16",
+      "kavlan-3": "2001:660:4406:182:5:0::16",
+      "kavlan-4": "2001:660:4406:190:5:0::16",
+      "kavlan-5": "2001:660:4406:191:5:0::16",
+      "kavlan-6": "2001:660:4406:192:5:0::16",
+      "kavlan-7": "2001:660:4406:193:5:0::16",
+      "kavlan-8": "2001:660:4406:194:5:0::16",
+      "kavlan-9": "2001:660:4406:195:5:0::16"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.22",
-      "ip6": "2001:660:4406:100:5::16",
+      "ip6": "2001:660:4406:100:5:0::16",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e7:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json
index 6c0feb7656d..e2f1b3f067d 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::17",
-      "kavlan-11": "2001:660:4406:1a0:105::17",
-      "kavlan-12": "2001:660:4406:2a0:105::17",
-      "kavlan-13": "2001:660:4406:4a0:105::17",
-      "kavlan-14": "2001:660:4406:5a0:105::17",
-      "kavlan-16": "2001:660:4406:7a0:105::17",
-      "kavlan-18": "2001:660:4406:8a0:105::17",
-      "kavlan-2": "2001:660:4406:181:5::17",
-      "kavlan-20": "2001:660:4406:3a0:105::17",
-      "kavlan-21": "2001:660:4406:6a0:105::17",
-      "kavlan-3": "2001:660:4406:182:5::17",
-      "kavlan-4": "2001:660:4406:190:5::17",
-      "kavlan-5": "2001:660:4406:191:5::17",
-      "kavlan-6": "2001:660:4406:192:5::17",
-      "kavlan-7": "2001:660:4406:193:5::17",
-      "kavlan-8": "2001:660:4406:194:5::17",
-      "kavlan-9": "2001:660:4406:195:5::17"
+      "kavlan-1": "2001:660:4406:180:5:0::17",
+      "kavlan-11": "2001:660:4406:1a0:105:0::17",
+      "kavlan-12": "2001:660:4406:2a0:105:0::17",
+      "kavlan-13": "2001:660:4406:4a0:105:0::17",
+      "kavlan-14": "2001:660:4406:5a0:105:0::17",
+      "kavlan-16": "2001:660:4406:7a0:105:0::17",
+      "kavlan-18": "2001:660:4406:8a0:105:0::17",
+      "kavlan-2": "2001:660:4406:181:5:0::17",
+      "kavlan-20": "2001:660:4406:3a0:105:0::17",
+      "kavlan-21": "2001:660:4406:6a0:105:0::17",
+      "kavlan-3": "2001:660:4406:182:5:0::17",
+      "kavlan-4": "2001:660:4406:190:5:0::17",
+      "kavlan-5": "2001:660:4406:191:5:0::17",
+      "kavlan-6": "2001:660:4406:192:5:0::17",
+      "kavlan-7": "2001:660:4406:193:5:0::17",
+      "kavlan-8": "2001:660:4406:194:5:0::17",
+      "kavlan-9": "2001:660:4406:195:5:0::17"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.23",
-      "ip6": "2001:660:4406:100:5::17",
+      "ip6": "2001:660:4406:100:5:0::17",
       "kavlan": true,
       "mac": "3c:fd:fe:55:eb:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json
index 9ef00b7c23a..1076c766677 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::18",
-      "kavlan-11": "2001:660:4406:1a0:105::18",
-      "kavlan-12": "2001:660:4406:2a0:105::18",
-      "kavlan-13": "2001:660:4406:4a0:105::18",
-      "kavlan-14": "2001:660:4406:5a0:105::18",
-      "kavlan-16": "2001:660:4406:7a0:105::18",
-      "kavlan-18": "2001:660:4406:8a0:105::18",
-      "kavlan-2": "2001:660:4406:181:5::18",
-      "kavlan-20": "2001:660:4406:3a0:105::18",
-      "kavlan-21": "2001:660:4406:6a0:105::18",
-      "kavlan-3": "2001:660:4406:182:5::18",
-      "kavlan-4": "2001:660:4406:190:5::18",
-      "kavlan-5": "2001:660:4406:191:5::18",
-      "kavlan-6": "2001:660:4406:192:5::18",
-      "kavlan-7": "2001:660:4406:193:5::18",
-      "kavlan-8": "2001:660:4406:194:5::18",
-      "kavlan-9": "2001:660:4406:195:5::18"
+      "kavlan-1": "2001:660:4406:180:5:0::18",
+      "kavlan-11": "2001:660:4406:1a0:105:0::18",
+      "kavlan-12": "2001:660:4406:2a0:105:0::18",
+      "kavlan-13": "2001:660:4406:4a0:105:0::18",
+      "kavlan-14": "2001:660:4406:5a0:105:0::18",
+      "kavlan-16": "2001:660:4406:7a0:105:0::18",
+      "kavlan-18": "2001:660:4406:8a0:105:0::18",
+      "kavlan-2": "2001:660:4406:181:5:0::18",
+      "kavlan-20": "2001:660:4406:3a0:105:0::18",
+      "kavlan-21": "2001:660:4406:6a0:105:0::18",
+      "kavlan-3": "2001:660:4406:182:5:0::18",
+      "kavlan-4": "2001:660:4406:190:5:0::18",
+      "kavlan-5": "2001:660:4406:191:5:0::18",
+      "kavlan-6": "2001:660:4406:192:5:0::18",
+      "kavlan-7": "2001:660:4406:193:5:0::18",
+      "kavlan-8": "2001:660:4406:194:5:0::18",
+      "kavlan-9": "2001:660:4406:195:5:0::18"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.24",
-      "ip6": "2001:660:4406:100:5::18",
+      "ip6": "2001:660:4406:100:5:0::18",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ec:40",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json
index 7e7f46af601..ce706501156 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::19",
-      "kavlan-11": "2001:660:4406:1a0:105::19",
-      "kavlan-12": "2001:660:4406:2a0:105::19",
-      "kavlan-13": "2001:660:4406:4a0:105::19",
-      "kavlan-14": "2001:660:4406:5a0:105::19",
-      "kavlan-16": "2001:660:4406:7a0:105::19",
-      "kavlan-18": "2001:660:4406:8a0:105::19",
-      "kavlan-2": "2001:660:4406:181:5::19",
-      "kavlan-20": "2001:660:4406:3a0:105::19",
-      "kavlan-21": "2001:660:4406:6a0:105::19",
-      "kavlan-3": "2001:660:4406:182:5::19",
-      "kavlan-4": "2001:660:4406:190:5::19",
-      "kavlan-5": "2001:660:4406:191:5::19",
-      "kavlan-6": "2001:660:4406:192:5::19",
-      "kavlan-7": "2001:660:4406:193:5::19",
-      "kavlan-8": "2001:660:4406:194:5::19",
-      "kavlan-9": "2001:660:4406:195:5::19"
+      "kavlan-1": "2001:660:4406:180:5:0::19",
+      "kavlan-11": "2001:660:4406:1a0:105:0::19",
+      "kavlan-12": "2001:660:4406:2a0:105:0::19",
+      "kavlan-13": "2001:660:4406:4a0:105:0::19",
+      "kavlan-14": "2001:660:4406:5a0:105:0::19",
+      "kavlan-16": "2001:660:4406:7a0:105:0::19",
+      "kavlan-18": "2001:660:4406:8a0:105:0::19",
+      "kavlan-2": "2001:660:4406:181:5:0::19",
+      "kavlan-20": "2001:660:4406:3a0:105:0::19",
+      "kavlan-21": "2001:660:4406:6a0:105:0::19",
+      "kavlan-3": "2001:660:4406:182:5:0::19",
+      "kavlan-4": "2001:660:4406:190:5:0::19",
+      "kavlan-5": "2001:660:4406:191:5:0::19",
+      "kavlan-6": "2001:660:4406:192:5:0::19",
+      "kavlan-7": "2001:660:4406:193:5:0::19",
+      "kavlan-8": "2001:660:4406:194:5:0::19",
+      "kavlan-9": "2001:660:4406:195:5:0::19"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.25",
-      "ip6": "2001:660:4406:100:5::19",
+      "ip6": "2001:660:4406:100:5:0::19",
       "kavlan": true,
       "mac": "3c:fd:fe:56:11:00",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json
index 39a928812bf..b2a13c0819c 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-26.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::1a",
-      "kavlan-11": "2001:660:4406:1a0:105::1a",
-      "kavlan-12": "2001:660:4406:2a0:105::1a",
-      "kavlan-13": "2001:660:4406:4a0:105::1a",
-      "kavlan-14": "2001:660:4406:5a0:105::1a",
-      "kavlan-16": "2001:660:4406:7a0:105::1a",
-      "kavlan-18": "2001:660:4406:8a0:105::1a",
-      "kavlan-2": "2001:660:4406:181:5::1a",
-      "kavlan-20": "2001:660:4406:3a0:105::1a",
-      "kavlan-21": "2001:660:4406:6a0:105::1a",
-      "kavlan-3": "2001:660:4406:182:5::1a",
-      "kavlan-4": "2001:660:4406:190:5::1a",
-      "kavlan-5": "2001:660:4406:191:5::1a",
-      "kavlan-6": "2001:660:4406:192:5::1a",
-      "kavlan-7": "2001:660:4406:193:5::1a",
-      "kavlan-8": "2001:660:4406:194:5::1a",
-      "kavlan-9": "2001:660:4406:195:5::1a"
+      "kavlan-1": "2001:660:4406:180:5:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:105:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:105:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:105:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:105:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:105:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:105:0::1a",
+      "kavlan-2": "2001:660:4406:181:5:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:105:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:105:0::1a",
+      "kavlan-3": "2001:660:4406:182:5:0::1a",
+      "kavlan-4": "2001:660:4406:190:5:0::1a",
+      "kavlan-5": "2001:660:4406:191:5:0::1a",
+      "kavlan-6": "2001:660:4406:192:5:0::1a",
+      "kavlan-7": "2001:660:4406:193:5:0::1a",
+      "kavlan-8": "2001:660:4406:194:5:0::1a",
+      "kavlan-9": "2001:660:4406:195:5:0::1a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.26",
-      "ip6": "2001:660:4406:100:5::1a",
+      "ip6": "2001:660:4406:100:5:0::1a",
       "kavlan": true,
       "mac": "3c:fd:fe:55:dd:40",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json
index 8624088a5ef..33c86d2fbdc 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::1b",
-      "kavlan-11": "2001:660:4406:1a0:105::1b",
-      "kavlan-12": "2001:660:4406:2a0:105::1b",
-      "kavlan-13": "2001:660:4406:4a0:105::1b",
-      "kavlan-14": "2001:660:4406:5a0:105::1b",
-      "kavlan-16": "2001:660:4406:7a0:105::1b",
-      "kavlan-18": "2001:660:4406:8a0:105::1b",
-      "kavlan-2": "2001:660:4406:181:5::1b",
-      "kavlan-20": "2001:660:4406:3a0:105::1b",
-      "kavlan-21": "2001:660:4406:6a0:105::1b",
-      "kavlan-3": "2001:660:4406:182:5::1b",
-      "kavlan-4": "2001:660:4406:190:5::1b",
-      "kavlan-5": "2001:660:4406:191:5::1b",
-      "kavlan-6": "2001:660:4406:192:5::1b",
-      "kavlan-7": "2001:660:4406:193:5::1b",
-      "kavlan-8": "2001:660:4406:194:5::1b",
-      "kavlan-9": "2001:660:4406:195:5::1b"
+      "kavlan-1": "2001:660:4406:180:5:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:105:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:105:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:105:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:105:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:105:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:105:0::1b",
+      "kavlan-2": "2001:660:4406:181:5:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:105:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:105:0::1b",
+      "kavlan-3": "2001:660:4406:182:5:0::1b",
+      "kavlan-4": "2001:660:4406:190:5:0::1b",
+      "kavlan-5": "2001:660:4406:191:5:0::1b",
+      "kavlan-6": "2001:660:4406:192:5:0::1b",
+      "kavlan-7": "2001:660:4406:193:5:0::1b",
+      "kavlan-8": "2001:660:4406:194:5:0::1b",
+      "kavlan-9": "2001:660:4406:195:5:0::1b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.27",
-      "ip6": "2001:660:4406:100:5::1b",
+      "ip6": "2001:660:4406:100:5:0::1b",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e5:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-28.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-28.json
index b5c101b8b40..295d574de33 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-28.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::1c",
-      "kavlan-11": "2001:660:4406:1a0:105::1c",
-      "kavlan-12": "2001:660:4406:2a0:105::1c",
-      "kavlan-13": "2001:660:4406:4a0:105::1c",
-      "kavlan-14": "2001:660:4406:5a0:105::1c",
-      "kavlan-16": "2001:660:4406:7a0:105::1c",
-      "kavlan-18": "2001:660:4406:8a0:105::1c",
-      "kavlan-2": "2001:660:4406:181:5::1c",
-      "kavlan-20": "2001:660:4406:3a0:105::1c",
-      "kavlan-21": "2001:660:4406:6a0:105::1c",
-      "kavlan-3": "2001:660:4406:182:5::1c",
-      "kavlan-4": "2001:660:4406:190:5::1c",
-      "kavlan-5": "2001:660:4406:191:5::1c",
-      "kavlan-6": "2001:660:4406:192:5::1c",
-      "kavlan-7": "2001:660:4406:193:5::1c",
-      "kavlan-8": "2001:660:4406:194:5::1c",
-      "kavlan-9": "2001:660:4406:195:5::1c"
+      "kavlan-1": "2001:660:4406:180:5:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:105:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:105:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:105:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:105:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:105:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:105:0::1c",
+      "kavlan-2": "2001:660:4406:181:5:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:105:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:105:0::1c",
+      "kavlan-3": "2001:660:4406:182:5:0::1c",
+      "kavlan-4": "2001:660:4406:190:5:0::1c",
+      "kavlan-5": "2001:660:4406:191:5:0::1c",
+      "kavlan-6": "2001:660:4406:192:5:0::1c",
+      "kavlan-7": "2001:660:4406:193:5:0::1c",
+      "kavlan-8": "2001:660:4406:194:5:0::1c",
+      "kavlan-9": "2001:660:4406:195:5:0::1c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.28",
-      "ip6": "2001:660:4406:100:5::1c",
+      "ip6": "2001:660:4406:100:5:0::1c",
       "kavlan": true,
       "mac": "3c:fd:fe:54:2a:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-29.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-29.json
index ff974fffdc0..ce1d7fffaab 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-29.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::1d",
-      "kavlan-11": "2001:660:4406:1a0:105::1d",
-      "kavlan-12": "2001:660:4406:2a0:105::1d",
-      "kavlan-13": "2001:660:4406:4a0:105::1d",
-      "kavlan-14": "2001:660:4406:5a0:105::1d",
-      "kavlan-16": "2001:660:4406:7a0:105::1d",
-      "kavlan-18": "2001:660:4406:8a0:105::1d",
-      "kavlan-2": "2001:660:4406:181:5::1d",
-      "kavlan-20": "2001:660:4406:3a0:105::1d",
-      "kavlan-21": "2001:660:4406:6a0:105::1d",
-      "kavlan-3": "2001:660:4406:182:5::1d",
-      "kavlan-4": "2001:660:4406:190:5::1d",
-      "kavlan-5": "2001:660:4406:191:5::1d",
-      "kavlan-6": "2001:660:4406:192:5::1d",
-      "kavlan-7": "2001:660:4406:193:5::1d",
-      "kavlan-8": "2001:660:4406:194:5::1d",
-      "kavlan-9": "2001:660:4406:195:5::1d"
+      "kavlan-1": "2001:660:4406:180:5:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:105:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:105:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:105:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:105:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:105:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:105:0::1d",
+      "kavlan-2": "2001:660:4406:181:5:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:105:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:105:0::1d",
+      "kavlan-3": "2001:660:4406:182:5:0::1d",
+      "kavlan-4": "2001:660:4406:190:5:0::1d",
+      "kavlan-5": "2001:660:4406:191:5:0::1d",
+      "kavlan-6": "2001:660:4406:192:5:0::1d",
+      "kavlan-7": "2001:660:4406:193:5:0::1d",
+      "kavlan-8": "2001:660:4406:194:5:0::1d",
+      "kavlan-9": "2001:660:4406:195:5:0::1d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.29",
-      "ip6": "2001:660:4406:100:5::1d",
+      "ip6": "2001:660:4406:100:5:0::1d",
       "kavlan": true,
       "mac": "3c:fd:fe:55:dd:c0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-3.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-3.json
index 376f6a261b0..d138bdce175 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-3.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::3",
-      "kavlan-11": "2001:660:4406:1a0:105::3",
-      "kavlan-12": "2001:660:4406:2a0:105::3",
-      "kavlan-13": "2001:660:4406:4a0:105::3",
-      "kavlan-14": "2001:660:4406:5a0:105::3",
-      "kavlan-16": "2001:660:4406:7a0:105::3",
-      "kavlan-18": "2001:660:4406:8a0:105::3",
-      "kavlan-2": "2001:660:4406:181:5::3",
-      "kavlan-20": "2001:660:4406:3a0:105::3",
-      "kavlan-21": "2001:660:4406:6a0:105::3",
-      "kavlan-3": "2001:660:4406:182:5::3",
-      "kavlan-4": "2001:660:4406:190:5::3",
-      "kavlan-5": "2001:660:4406:191:5::3",
-      "kavlan-6": "2001:660:4406:192:5::3",
-      "kavlan-7": "2001:660:4406:193:5::3",
-      "kavlan-8": "2001:660:4406:194:5::3",
-      "kavlan-9": "2001:660:4406:195:5::3"
+      "kavlan-1": "2001:660:4406:180:5:0::3",
+      "kavlan-11": "2001:660:4406:1a0:105:0::3",
+      "kavlan-12": "2001:660:4406:2a0:105:0::3",
+      "kavlan-13": "2001:660:4406:4a0:105:0::3",
+      "kavlan-14": "2001:660:4406:5a0:105:0::3",
+      "kavlan-16": "2001:660:4406:7a0:105:0::3",
+      "kavlan-18": "2001:660:4406:8a0:105:0::3",
+      "kavlan-2": "2001:660:4406:181:5:0::3",
+      "kavlan-20": "2001:660:4406:3a0:105:0::3",
+      "kavlan-21": "2001:660:4406:6a0:105:0::3",
+      "kavlan-3": "2001:660:4406:182:5:0::3",
+      "kavlan-4": "2001:660:4406:190:5:0::3",
+      "kavlan-5": "2001:660:4406:191:5:0::3",
+      "kavlan-6": "2001:660:4406:192:5:0::3",
+      "kavlan-7": "2001:660:4406:193:5:0::3",
+      "kavlan-8": "2001:660:4406:194:5:0::3",
+      "kavlan-9": "2001:660:4406:195:5:0::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.3",
-      "ip6": "2001:660:4406:100:5::3",
+      "ip6": "2001:660:4406:100:5:0::3",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ee:e0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-30.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-30.json
index 22533f589d7..ae7a3401e51 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-30.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::1e",
-      "kavlan-11": "2001:660:4406:1a0:105::1e",
-      "kavlan-12": "2001:660:4406:2a0:105::1e",
-      "kavlan-13": "2001:660:4406:4a0:105::1e",
-      "kavlan-14": "2001:660:4406:5a0:105::1e",
-      "kavlan-16": "2001:660:4406:7a0:105::1e",
-      "kavlan-18": "2001:660:4406:8a0:105::1e",
-      "kavlan-2": "2001:660:4406:181:5::1e",
-      "kavlan-20": "2001:660:4406:3a0:105::1e",
-      "kavlan-21": "2001:660:4406:6a0:105::1e",
-      "kavlan-3": "2001:660:4406:182:5::1e",
-      "kavlan-4": "2001:660:4406:190:5::1e",
-      "kavlan-5": "2001:660:4406:191:5::1e",
-      "kavlan-6": "2001:660:4406:192:5::1e",
-      "kavlan-7": "2001:660:4406:193:5::1e",
-      "kavlan-8": "2001:660:4406:194:5::1e",
-      "kavlan-9": "2001:660:4406:195:5::1e"
+      "kavlan-1": "2001:660:4406:180:5:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:105:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:105:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:105:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:105:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:105:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:105:0::1e",
+      "kavlan-2": "2001:660:4406:181:5:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:105:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:105:0::1e",
+      "kavlan-3": "2001:660:4406:182:5:0::1e",
+      "kavlan-4": "2001:660:4406:190:5:0::1e",
+      "kavlan-5": "2001:660:4406:191:5:0::1e",
+      "kavlan-6": "2001:660:4406:192:5:0::1e",
+      "kavlan-7": "2001:660:4406:193:5:0::1e",
+      "kavlan-8": "2001:660:4406:194:5:0::1e",
+      "kavlan-9": "2001:660:4406:195:5:0::1e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.30",
-      "ip6": "2001:660:4406:100:5::1e",
+      "ip6": "2001:660:4406:100:5:0::1e",
       "kavlan": true,
       "mac": "3c:fd:fe:55:e1:a0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-31.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-31.json
index e0f7d29e9b4..1f77b0579aa 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-31.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::1f",
-      "kavlan-11": "2001:660:4406:1a0:105::1f",
-      "kavlan-12": "2001:660:4406:2a0:105::1f",
-      "kavlan-13": "2001:660:4406:4a0:105::1f",
-      "kavlan-14": "2001:660:4406:5a0:105::1f",
-      "kavlan-16": "2001:660:4406:7a0:105::1f",
-      "kavlan-18": "2001:660:4406:8a0:105::1f",
-      "kavlan-2": "2001:660:4406:181:5::1f",
-      "kavlan-20": "2001:660:4406:3a0:105::1f",
-      "kavlan-21": "2001:660:4406:6a0:105::1f",
-      "kavlan-3": "2001:660:4406:182:5::1f",
-      "kavlan-4": "2001:660:4406:190:5::1f",
-      "kavlan-5": "2001:660:4406:191:5::1f",
-      "kavlan-6": "2001:660:4406:192:5::1f",
-      "kavlan-7": "2001:660:4406:193:5::1f",
-      "kavlan-8": "2001:660:4406:194:5::1f",
-      "kavlan-9": "2001:660:4406:195:5::1f"
+      "kavlan-1": "2001:660:4406:180:5:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:105:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:105:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:105:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:105:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:105:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:105:0::1f",
+      "kavlan-2": "2001:660:4406:181:5:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:105:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:105:0::1f",
+      "kavlan-3": "2001:660:4406:182:5:0::1f",
+      "kavlan-4": "2001:660:4406:190:5:0::1f",
+      "kavlan-5": "2001:660:4406:191:5:0::1f",
+      "kavlan-6": "2001:660:4406:192:5:0::1f",
+      "kavlan-7": "2001:660:4406:193:5:0::1f",
+      "kavlan-8": "2001:660:4406:194:5:0::1f",
+      "kavlan-9": "2001:660:4406:195:5:0::1f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.31",
-      "ip6": "2001:660:4406:100:5::1f",
+      "ip6": "2001:660:4406:100:5:0::1f",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c8:b8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-32.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-32.json
index eb0e84242a2..6f05e3166a3 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-32.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::20",
-      "kavlan-11": "2001:660:4406:1a0:105::20",
-      "kavlan-12": "2001:660:4406:2a0:105::20",
-      "kavlan-13": "2001:660:4406:4a0:105::20",
-      "kavlan-14": "2001:660:4406:5a0:105::20",
-      "kavlan-16": "2001:660:4406:7a0:105::20",
-      "kavlan-18": "2001:660:4406:8a0:105::20",
-      "kavlan-2": "2001:660:4406:181:5::20",
-      "kavlan-20": "2001:660:4406:3a0:105::20",
-      "kavlan-21": "2001:660:4406:6a0:105::20",
-      "kavlan-3": "2001:660:4406:182:5::20",
-      "kavlan-4": "2001:660:4406:190:5::20",
-      "kavlan-5": "2001:660:4406:191:5::20",
-      "kavlan-6": "2001:660:4406:192:5::20",
-      "kavlan-7": "2001:660:4406:193:5::20",
-      "kavlan-8": "2001:660:4406:194:5::20",
-      "kavlan-9": "2001:660:4406:195:5::20"
+      "kavlan-1": "2001:660:4406:180:5:0::20",
+      "kavlan-11": "2001:660:4406:1a0:105:0::20",
+      "kavlan-12": "2001:660:4406:2a0:105:0::20",
+      "kavlan-13": "2001:660:4406:4a0:105:0::20",
+      "kavlan-14": "2001:660:4406:5a0:105:0::20",
+      "kavlan-16": "2001:660:4406:7a0:105:0::20",
+      "kavlan-18": "2001:660:4406:8a0:105:0::20",
+      "kavlan-2": "2001:660:4406:181:5:0::20",
+      "kavlan-20": "2001:660:4406:3a0:105:0::20",
+      "kavlan-21": "2001:660:4406:6a0:105:0::20",
+      "kavlan-3": "2001:660:4406:182:5:0::20",
+      "kavlan-4": "2001:660:4406:190:5:0::20",
+      "kavlan-5": "2001:660:4406:191:5:0::20",
+      "kavlan-6": "2001:660:4406:192:5:0::20",
+      "kavlan-7": "2001:660:4406:193:5:0::20",
+      "kavlan-8": "2001:660:4406:194:5:0::20",
+      "kavlan-9": "2001:660:4406:195:5:0::20"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.32",
-      "ip6": "2001:660:4406:100:5::20",
+      "ip6": "2001:660:4406:100:5:0::20",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c3:d8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-4.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-4.json
index 5b4b526b2db..9a90073dada 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-4.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::4",
-      "kavlan-11": "2001:660:4406:1a0:105::4",
-      "kavlan-12": "2001:660:4406:2a0:105::4",
-      "kavlan-13": "2001:660:4406:4a0:105::4",
-      "kavlan-14": "2001:660:4406:5a0:105::4",
-      "kavlan-16": "2001:660:4406:7a0:105::4",
-      "kavlan-18": "2001:660:4406:8a0:105::4",
-      "kavlan-2": "2001:660:4406:181:5::4",
-      "kavlan-20": "2001:660:4406:3a0:105::4",
-      "kavlan-21": "2001:660:4406:6a0:105::4",
-      "kavlan-3": "2001:660:4406:182:5::4",
-      "kavlan-4": "2001:660:4406:190:5::4",
-      "kavlan-5": "2001:660:4406:191:5::4",
-      "kavlan-6": "2001:660:4406:192:5::4",
-      "kavlan-7": "2001:660:4406:193:5::4",
-      "kavlan-8": "2001:660:4406:194:5::4",
-      "kavlan-9": "2001:660:4406:195:5::4"
+      "kavlan-1": "2001:660:4406:180:5:0::4",
+      "kavlan-11": "2001:660:4406:1a0:105:0::4",
+      "kavlan-12": "2001:660:4406:2a0:105:0::4",
+      "kavlan-13": "2001:660:4406:4a0:105:0::4",
+      "kavlan-14": "2001:660:4406:5a0:105:0::4",
+      "kavlan-16": "2001:660:4406:7a0:105:0::4",
+      "kavlan-18": "2001:660:4406:8a0:105:0::4",
+      "kavlan-2": "2001:660:4406:181:5:0::4",
+      "kavlan-20": "2001:660:4406:3a0:105:0::4",
+      "kavlan-21": "2001:660:4406:6a0:105:0::4",
+      "kavlan-3": "2001:660:4406:182:5:0::4",
+      "kavlan-4": "2001:660:4406:190:5:0::4",
+      "kavlan-5": "2001:660:4406:191:5:0::4",
+      "kavlan-6": "2001:660:4406:192:5:0::4",
+      "kavlan-7": "2001:660:4406:193:5:0::4",
+      "kavlan-8": "2001:660:4406:194:5:0::4",
+      "kavlan-9": "2001:660:4406:195:5:0::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.4",
-      "ip6": "2001:660:4406:100:5::4",
+      "ip6": "2001:660:4406:100:5:0::4",
       "kavlan": true,
       "mac": "3c:fd:fe:55:ed:c0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-5.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-5.json
index 8ad19f8683a..7ae7969f862 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-5.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::5",
-      "kavlan-11": "2001:660:4406:1a0:105::5",
-      "kavlan-12": "2001:660:4406:2a0:105::5",
-      "kavlan-13": "2001:660:4406:4a0:105::5",
-      "kavlan-14": "2001:660:4406:5a0:105::5",
-      "kavlan-16": "2001:660:4406:7a0:105::5",
-      "kavlan-18": "2001:660:4406:8a0:105::5",
-      "kavlan-2": "2001:660:4406:181:5::5",
-      "kavlan-20": "2001:660:4406:3a0:105::5",
-      "kavlan-21": "2001:660:4406:6a0:105::5",
-      "kavlan-3": "2001:660:4406:182:5::5",
-      "kavlan-4": "2001:660:4406:190:5::5",
-      "kavlan-5": "2001:660:4406:191:5::5",
-      "kavlan-6": "2001:660:4406:192:5::5",
-      "kavlan-7": "2001:660:4406:193:5::5",
-      "kavlan-8": "2001:660:4406:194:5::5",
-      "kavlan-9": "2001:660:4406:195:5::5"
+      "kavlan-1": "2001:660:4406:180:5:0::5",
+      "kavlan-11": "2001:660:4406:1a0:105:0::5",
+      "kavlan-12": "2001:660:4406:2a0:105:0::5",
+      "kavlan-13": "2001:660:4406:4a0:105:0::5",
+      "kavlan-14": "2001:660:4406:5a0:105:0::5",
+      "kavlan-16": "2001:660:4406:7a0:105:0::5",
+      "kavlan-18": "2001:660:4406:8a0:105:0::5",
+      "kavlan-2": "2001:660:4406:181:5:0::5",
+      "kavlan-20": "2001:660:4406:3a0:105:0::5",
+      "kavlan-21": "2001:660:4406:6a0:105:0::5",
+      "kavlan-3": "2001:660:4406:182:5:0::5",
+      "kavlan-4": "2001:660:4406:190:5:0::5",
+      "kavlan-5": "2001:660:4406:191:5:0::5",
+      "kavlan-6": "2001:660:4406:192:5:0::5",
+      "kavlan-7": "2001:660:4406:193:5:0::5",
+      "kavlan-8": "2001:660:4406:194:5:0::5",
+      "kavlan-9": "2001:660:4406:195:5:0::5"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.5",
-      "ip6": "2001:660:4406:100:5::5",
+      "ip6": "2001:660:4406:100:5:0::5",
       "kavlan": true,
       "mac": "3c:fd:fe:54:c8:58",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-6.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-6.json
index ba3a930c5f0..b468322d329 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-6.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::6",
-      "kavlan-11": "2001:660:4406:1a0:105::6",
-      "kavlan-12": "2001:660:4406:2a0:105::6",
-      "kavlan-13": "2001:660:4406:4a0:105::6",
-      "kavlan-14": "2001:660:4406:5a0:105::6",
-      "kavlan-16": "2001:660:4406:7a0:105::6",
-      "kavlan-18": "2001:660:4406:8a0:105::6",
-      "kavlan-2": "2001:660:4406:181:5::6",
-      "kavlan-20": "2001:660:4406:3a0:105::6",
-      "kavlan-21": "2001:660:4406:6a0:105::6",
-      "kavlan-3": "2001:660:4406:182:5::6",
-      "kavlan-4": "2001:660:4406:190:5::6",
-      "kavlan-5": "2001:660:4406:191:5::6",
-      "kavlan-6": "2001:660:4406:192:5::6",
-      "kavlan-7": "2001:660:4406:193:5::6",
-      "kavlan-8": "2001:660:4406:194:5::6",
-      "kavlan-9": "2001:660:4406:195:5::6"
+      "kavlan-1": "2001:660:4406:180:5:0::6",
+      "kavlan-11": "2001:660:4406:1a0:105:0::6",
+      "kavlan-12": "2001:660:4406:2a0:105:0::6",
+      "kavlan-13": "2001:660:4406:4a0:105:0::6",
+      "kavlan-14": "2001:660:4406:5a0:105:0::6",
+      "kavlan-16": "2001:660:4406:7a0:105:0::6",
+      "kavlan-18": "2001:660:4406:8a0:105:0::6",
+      "kavlan-2": "2001:660:4406:181:5:0::6",
+      "kavlan-20": "2001:660:4406:3a0:105:0::6",
+      "kavlan-21": "2001:660:4406:6a0:105:0::6",
+      "kavlan-3": "2001:660:4406:182:5:0::6",
+      "kavlan-4": "2001:660:4406:190:5:0::6",
+      "kavlan-5": "2001:660:4406:191:5:0::6",
+      "kavlan-6": "2001:660:4406:192:5:0::6",
+      "kavlan-7": "2001:660:4406:193:5:0::6",
+      "kavlan-8": "2001:660:4406:194:5:0::6",
+      "kavlan-9": "2001:660:4406:195:5:0::6"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.6",
-      "ip6": "2001:660:4406:100:5::6",
+      "ip6": "2001:660:4406:100:5:0::6",
       "kavlan": true,
       "mac": "3c:fd:fe:54:ac:78",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-7.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-7.json
index b802ef99977..27c6fb77d60 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-7.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::7",
-      "kavlan-11": "2001:660:4406:1a0:105::7",
-      "kavlan-12": "2001:660:4406:2a0:105::7",
-      "kavlan-13": "2001:660:4406:4a0:105::7",
-      "kavlan-14": "2001:660:4406:5a0:105::7",
-      "kavlan-16": "2001:660:4406:7a0:105::7",
-      "kavlan-18": "2001:660:4406:8a0:105::7",
-      "kavlan-2": "2001:660:4406:181:5::7",
-      "kavlan-20": "2001:660:4406:3a0:105::7",
-      "kavlan-21": "2001:660:4406:6a0:105::7",
-      "kavlan-3": "2001:660:4406:182:5::7",
-      "kavlan-4": "2001:660:4406:190:5::7",
-      "kavlan-5": "2001:660:4406:191:5::7",
-      "kavlan-6": "2001:660:4406:192:5::7",
-      "kavlan-7": "2001:660:4406:193:5::7",
-      "kavlan-8": "2001:660:4406:194:5::7",
-      "kavlan-9": "2001:660:4406:195:5::7"
+      "kavlan-1": "2001:660:4406:180:5:0::7",
+      "kavlan-11": "2001:660:4406:1a0:105:0::7",
+      "kavlan-12": "2001:660:4406:2a0:105:0::7",
+      "kavlan-13": "2001:660:4406:4a0:105:0::7",
+      "kavlan-14": "2001:660:4406:5a0:105:0::7",
+      "kavlan-16": "2001:660:4406:7a0:105:0::7",
+      "kavlan-18": "2001:660:4406:8a0:105:0::7",
+      "kavlan-2": "2001:660:4406:181:5:0::7",
+      "kavlan-20": "2001:660:4406:3a0:105:0::7",
+      "kavlan-21": "2001:660:4406:6a0:105:0::7",
+      "kavlan-3": "2001:660:4406:182:5:0::7",
+      "kavlan-4": "2001:660:4406:190:5:0::7",
+      "kavlan-5": "2001:660:4406:191:5:0::7",
+      "kavlan-6": "2001:660:4406:192:5:0::7",
+      "kavlan-7": "2001:660:4406:193:5:0::7",
+      "kavlan-8": "2001:660:4406:194:5:0::7",
+      "kavlan-9": "2001:660:4406:195:5:0::7"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.7",
-      "ip6": "2001:660:4406:100:5::7",
+      "ip6": "2001:660:4406:100:5:0::7",
       "kavlan": true,
       "mac": "3c:fd:fe:54:79:20",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-8.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-8.json
index faeb6d6fd46..bfd93dfa985 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-8.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::8",
-      "kavlan-11": "2001:660:4406:1a0:105::8",
-      "kavlan-12": "2001:660:4406:2a0:105::8",
-      "kavlan-13": "2001:660:4406:4a0:105::8",
-      "kavlan-14": "2001:660:4406:5a0:105::8",
-      "kavlan-16": "2001:660:4406:7a0:105::8",
-      "kavlan-18": "2001:660:4406:8a0:105::8",
-      "kavlan-2": "2001:660:4406:181:5::8",
-      "kavlan-20": "2001:660:4406:3a0:105::8",
-      "kavlan-21": "2001:660:4406:6a0:105::8",
-      "kavlan-3": "2001:660:4406:182:5::8",
-      "kavlan-4": "2001:660:4406:190:5::8",
-      "kavlan-5": "2001:660:4406:191:5::8",
-      "kavlan-6": "2001:660:4406:192:5::8",
-      "kavlan-7": "2001:660:4406:193:5::8",
-      "kavlan-8": "2001:660:4406:194:5::8",
-      "kavlan-9": "2001:660:4406:195:5::8"
+      "kavlan-1": "2001:660:4406:180:5:0::8",
+      "kavlan-11": "2001:660:4406:1a0:105:0::8",
+      "kavlan-12": "2001:660:4406:2a0:105:0::8",
+      "kavlan-13": "2001:660:4406:4a0:105:0::8",
+      "kavlan-14": "2001:660:4406:5a0:105:0::8",
+      "kavlan-16": "2001:660:4406:7a0:105:0::8",
+      "kavlan-18": "2001:660:4406:8a0:105:0::8",
+      "kavlan-2": "2001:660:4406:181:5:0::8",
+      "kavlan-20": "2001:660:4406:3a0:105:0::8",
+      "kavlan-21": "2001:660:4406:6a0:105:0::8",
+      "kavlan-3": "2001:660:4406:182:5:0::8",
+      "kavlan-4": "2001:660:4406:190:5:0::8",
+      "kavlan-5": "2001:660:4406:191:5:0::8",
+      "kavlan-6": "2001:660:4406:192:5:0::8",
+      "kavlan-7": "2001:660:4406:193:5:0::8",
+      "kavlan-8": "2001:660:4406:194:5:0::8",
+      "kavlan-9": "2001:660:4406:195:5:0::8"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.8",
-      "ip6": "2001:660:4406:100:5::8",
+      "ip6": "2001:660:4406:100:5:0::8",
       "kavlan": true,
       "mac": "3c:fd:fe:54:a6:58",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-9.json b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-9.json
index fbcfa1502a0..8f8bd5fc17f 100644
--- a/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-9.json
+++ b/data/grid5000/sites/grenoble/clusters/dahu/nodes/dahu-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:5::9",
-      "kavlan-11": "2001:660:4406:1a0:105::9",
-      "kavlan-12": "2001:660:4406:2a0:105::9",
-      "kavlan-13": "2001:660:4406:4a0:105::9",
-      "kavlan-14": "2001:660:4406:5a0:105::9",
-      "kavlan-16": "2001:660:4406:7a0:105::9",
-      "kavlan-18": "2001:660:4406:8a0:105::9",
-      "kavlan-2": "2001:660:4406:181:5::9",
-      "kavlan-20": "2001:660:4406:3a0:105::9",
-      "kavlan-21": "2001:660:4406:6a0:105::9",
-      "kavlan-3": "2001:660:4406:182:5::9",
-      "kavlan-4": "2001:660:4406:190:5::9",
-      "kavlan-5": "2001:660:4406:191:5::9",
-      "kavlan-6": "2001:660:4406:192:5::9",
-      "kavlan-7": "2001:660:4406:193:5::9",
-      "kavlan-8": "2001:660:4406:194:5::9",
-      "kavlan-9": "2001:660:4406:195:5::9"
+      "kavlan-1": "2001:660:4406:180:5:0::9",
+      "kavlan-11": "2001:660:4406:1a0:105:0::9",
+      "kavlan-12": "2001:660:4406:2a0:105:0::9",
+      "kavlan-13": "2001:660:4406:4a0:105:0::9",
+      "kavlan-14": "2001:660:4406:5a0:105:0::9",
+      "kavlan-16": "2001:660:4406:7a0:105:0::9",
+      "kavlan-18": "2001:660:4406:8a0:105:0::9",
+      "kavlan-2": "2001:660:4406:181:5:0::9",
+      "kavlan-20": "2001:660:4406:3a0:105:0::9",
+      "kavlan-21": "2001:660:4406:6a0:105:0::9",
+      "kavlan-3": "2001:660:4406:182:5:0::9",
+      "kavlan-4": "2001:660:4406:190:5:0::9",
+      "kavlan-5": "2001:660:4406:191:5:0::9",
+      "kavlan-6": "2001:660:4406:192:5:0::9",
+      "kavlan-7": "2001:660:4406:193:5:0::9",
+      "kavlan-8": "2001:660:4406:194:5:0::9",
+      "kavlan-9": "2001:660:4406:195:5:0::9"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ad 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.20.9",
-      "ip6": "2001:660:4406:100:5::9",
+      "ip6": "2001:660:4406:100:5:0::9",
       "kavlan": true,
       "mac": "3c:fd:fe:55:df:00",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
index 08c0dbb769d..a0a911dd32c 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:7::1",
-      "kavlan-11": "2001:660:4406:1a0:107::1",
-      "kavlan-12": "2001:660:4406:2a0:107::1",
-      "kavlan-13": "2001:660:4406:4a0:107::1",
-      "kavlan-14": "2001:660:4406:5a0:107::1",
-      "kavlan-16": "2001:660:4406:7a0:107::1",
-      "kavlan-18": "2001:660:4406:8a0:107::1",
-      "kavlan-2": "2001:660:4406:181:7::1",
-      "kavlan-20": "2001:660:4406:3a0:107::1",
-      "kavlan-21": "2001:660:4406:6a0:107::1",
-      "kavlan-3": "2001:660:4406:182:7::1",
-      "kavlan-4": "2001:660:4406:190:7::1",
-      "kavlan-5": "2001:660:4406:191:7::1",
-      "kavlan-6": "2001:660:4406:192:7::1",
-      "kavlan-7": "2001:660:4406:193:7::1",
-      "kavlan-8": "2001:660:4406:194:7::1",
-      "kavlan-9": "2001:660:4406:195:7::1"
+      "kavlan-1": "2001:660:4406:180:7:0::1",
+      "kavlan-11": "2001:660:4406:1a0:107:0::1",
+      "kavlan-12": "2001:660:4406:2a0:107:0::1",
+      "kavlan-13": "2001:660:4406:4a0:107:0::1",
+      "kavlan-14": "2001:660:4406:5a0:107:0::1",
+      "kavlan-16": "2001:660:4406:7a0:107:0::1",
+      "kavlan-18": "2001:660:4406:8a0:107:0::1",
+      "kavlan-2": "2001:660:4406:181:7:0::1",
+      "kavlan-20": "2001:660:4406:3a0:107:0::1",
+      "kavlan-21": "2001:660:4406:6a0:107:0::1",
+      "kavlan-3": "2001:660:4406:182:7:0::1",
+      "kavlan-4": "2001:660:4406:190:7:0::1",
+      "kavlan-5": "2001:660:4406:191:7:0::1",
+      "kavlan-6": "2001:660:4406:192:7:0::1",
+      "kavlan-7": "2001:660:4406:193:7:0::1",
+      "kavlan-8": "2001:660:4406:194:7:0::1",
+      "kavlan-9": "2001:660:4406:195:7:0::1"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.1",
-      "ip6": "2001:660:4406:100:7::1",
+      "ip6": "2001:660:4406:100:7:0::1",
       "kavlan": true,
       "mac": "b8:59:9f:b0:87:00",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
index 6a60328ba51..81d0d353c86 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:7::2",
-      "kavlan-11": "2001:660:4406:1a0:107::2",
-      "kavlan-12": "2001:660:4406:2a0:107::2",
-      "kavlan-13": "2001:660:4406:4a0:107::2",
-      "kavlan-14": "2001:660:4406:5a0:107::2",
-      "kavlan-16": "2001:660:4406:7a0:107::2",
-      "kavlan-18": "2001:660:4406:8a0:107::2",
-      "kavlan-2": "2001:660:4406:181:7::2",
-      "kavlan-20": "2001:660:4406:3a0:107::2",
-      "kavlan-21": "2001:660:4406:6a0:107::2",
-      "kavlan-3": "2001:660:4406:182:7::2",
-      "kavlan-4": "2001:660:4406:190:7::2",
-      "kavlan-5": "2001:660:4406:191:7::2",
-      "kavlan-6": "2001:660:4406:192:7::2",
-      "kavlan-7": "2001:660:4406:193:7::2",
-      "kavlan-8": "2001:660:4406:194:7::2",
-      "kavlan-9": "2001:660:4406:195:7::2"
+      "kavlan-1": "2001:660:4406:180:7:0::2",
+      "kavlan-11": "2001:660:4406:1a0:107:0::2",
+      "kavlan-12": "2001:660:4406:2a0:107:0::2",
+      "kavlan-13": "2001:660:4406:4a0:107:0::2",
+      "kavlan-14": "2001:660:4406:5a0:107:0::2",
+      "kavlan-16": "2001:660:4406:7a0:107:0::2",
+      "kavlan-18": "2001:660:4406:8a0:107:0::2",
+      "kavlan-2": "2001:660:4406:181:7:0::2",
+      "kavlan-20": "2001:660:4406:3a0:107:0::2",
+      "kavlan-21": "2001:660:4406:6a0:107:0::2",
+      "kavlan-3": "2001:660:4406:182:7:0::2",
+      "kavlan-4": "2001:660:4406:190:7:0::2",
+      "kavlan-5": "2001:660:4406:191:7:0::2",
+      "kavlan-6": "2001:660:4406:192:7:0::2",
+      "kavlan-7": "2001:660:4406:193:7:0::2",
+      "kavlan-8": "2001:660:4406:194:7:0::2",
+      "kavlan-9": "2001:660:4406:195:7:0::2"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.2",
-      "ip6": "2001:660:4406:100:7::2",
+      "ip6": "2001:660:4406:100:7:0::2",
       "kavlan": true,
       "mac": "b8:59:9f:b0:87:08",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
index 229ac5d8246..26702139293 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:7::3",
-      "kavlan-11": "2001:660:4406:1a0:107::3",
-      "kavlan-12": "2001:660:4406:2a0:107::3",
-      "kavlan-13": "2001:660:4406:4a0:107::3",
-      "kavlan-14": "2001:660:4406:5a0:107::3",
-      "kavlan-16": "2001:660:4406:7a0:107::3",
-      "kavlan-18": "2001:660:4406:8a0:107::3",
-      "kavlan-2": "2001:660:4406:181:7::3",
-      "kavlan-20": "2001:660:4406:3a0:107::3",
-      "kavlan-21": "2001:660:4406:6a0:107::3",
-      "kavlan-3": "2001:660:4406:182:7::3",
-      "kavlan-4": "2001:660:4406:190:7::3",
-      "kavlan-5": "2001:660:4406:191:7::3",
-      "kavlan-6": "2001:660:4406:192:7::3",
-      "kavlan-7": "2001:660:4406:193:7::3",
-      "kavlan-8": "2001:660:4406:194:7::3",
-      "kavlan-9": "2001:660:4406:195:7::3"
+      "kavlan-1": "2001:660:4406:180:7:0::3",
+      "kavlan-11": "2001:660:4406:1a0:107:0::3",
+      "kavlan-12": "2001:660:4406:2a0:107:0::3",
+      "kavlan-13": "2001:660:4406:4a0:107:0::3",
+      "kavlan-14": "2001:660:4406:5a0:107:0::3",
+      "kavlan-16": "2001:660:4406:7a0:107:0::3",
+      "kavlan-18": "2001:660:4406:8a0:107:0::3",
+      "kavlan-2": "2001:660:4406:181:7:0::3",
+      "kavlan-20": "2001:660:4406:3a0:107:0::3",
+      "kavlan-21": "2001:660:4406:6a0:107:0::3",
+      "kavlan-3": "2001:660:4406:182:7:0::3",
+      "kavlan-4": "2001:660:4406:190:7:0::3",
+      "kavlan-5": "2001:660:4406:191:7:0::3",
+      "kavlan-6": "2001:660:4406:192:7:0::3",
+      "kavlan-7": "2001:660:4406:193:7:0::3",
+      "kavlan-8": "2001:660:4406:194:7:0::3",
+      "kavlan-9": "2001:660:4406:195:7:0::3"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.3",
-      "ip6": "2001:660:4406:100:7::3",
+      "ip6": "2001:660:4406:100:7:0::3",
       "kavlan": true,
       "mac": "b8:59:9f:b0:86:e8",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
index 28b97e40918..cc00ad6324f 100644
--- a/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
+++ b/data/grid5000/sites/grenoble/clusters/troll/nodes/troll-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:7::4",
-      "kavlan-11": "2001:660:4406:1a0:107::4",
-      "kavlan-12": "2001:660:4406:2a0:107::4",
-      "kavlan-13": "2001:660:4406:4a0:107::4",
-      "kavlan-14": "2001:660:4406:5a0:107::4",
-      "kavlan-16": "2001:660:4406:7a0:107::4",
-      "kavlan-18": "2001:660:4406:8a0:107::4",
-      "kavlan-2": "2001:660:4406:181:7::4",
-      "kavlan-20": "2001:660:4406:3a0:107::4",
-      "kavlan-21": "2001:660:4406:6a0:107::4",
-      "kavlan-3": "2001:660:4406:182:7::4",
-      "kavlan-4": "2001:660:4406:190:7::4",
-      "kavlan-5": "2001:660:4406:191:7::4",
-      "kavlan-6": "2001:660:4406:192:7::4",
-      "kavlan-7": "2001:660:4406:193:7::4",
-      "kavlan-8": "2001:660:4406:194:7::4",
-      "kavlan-9": "2001:660:4406:195:7::4"
+      "kavlan-1": "2001:660:4406:180:7:0::4",
+      "kavlan-11": "2001:660:4406:1a0:107:0::4",
+      "kavlan-12": "2001:660:4406:2a0:107:0::4",
+      "kavlan-13": "2001:660:4406:4a0:107:0::4",
+      "kavlan-14": "2001:660:4406:5a0:107:0::4",
+      "kavlan-16": "2001:660:4406:7a0:107:0::4",
+      "kavlan-18": "2001:660:4406:8a0:107:0::4",
+      "kavlan-2": "2001:660:4406:181:7:0::4",
+      "kavlan-20": "2001:660:4406:3a0:107:0::4",
+      "kavlan-21": "2001:660:4406:6a0:107:0::4",
+      "kavlan-3": "2001:660:4406:182:7:0::4",
+      "kavlan-4": "2001:660:4406:190:7:0::4",
+      "kavlan-5": "2001:660:4406:191:7:0::4",
+      "kavlan-6": "2001:660:4406:192:7:0::4",
+      "kavlan-7": "2001:660:4406:193:7:0::4",
+      "kavlan-8": "2001:660:4406:194:7:0::4",
+      "kavlan-9": "2001:660:4406:195:7:0::4"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.22.4",
-      "ip6": "2001:660:4406:100:7::4",
+      "ip6": "2001:660:4406:100:7:0::4",
       "kavlan": true,
       "mac": "b8:59:9f:b1:09:04",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-1.json b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-1.json
index 3307a4b237c..da064ba0b65 100644
--- a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-1.json
+++ b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:4::1",
-      "kavlan-11": "2001:660:4406:1a0:104::1",
-      "kavlan-12": "2001:660:4406:2a0:104::1",
-      "kavlan-13": "2001:660:4406:4a0:104::1",
-      "kavlan-14": "2001:660:4406:5a0:104::1",
-      "kavlan-16": "2001:660:4406:7a0:104::1",
-      "kavlan-18": "2001:660:4406:8a0:104::1",
-      "kavlan-2": "2001:660:4406:181:4::1",
-      "kavlan-20": "2001:660:4406:3a0:104::1",
-      "kavlan-21": "2001:660:4406:6a0:104::1",
-      "kavlan-3": "2001:660:4406:182:4::1",
-      "kavlan-4": "2001:660:4406:190:4::1",
-      "kavlan-5": "2001:660:4406:191:4::1",
-      "kavlan-6": "2001:660:4406:192:4::1",
-      "kavlan-7": "2001:660:4406:193:4::1",
-      "kavlan-8": "2001:660:4406:194:4::1",
-      "kavlan-9": "2001:660:4406:195:4::1"
+      "kavlan-1": "2001:660:4406:180:4:0::1",
+      "kavlan-11": "2001:660:4406:1a0:104:0::1",
+      "kavlan-12": "2001:660:4406:2a0:104:0::1",
+      "kavlan-13": "2001:660:4406:4a0:104:0::1",
+      "kavlan-14": "2001:660:4406:5a0:104:0::1",
+      "kavlan-16": "2001:660:4406:7a0:104:0::1",
+      "kavlan-18": "2001:660:4406:8a0:104:0::1",
+      "kavlan-2": "2001:660:4406:181:4:0::1",
+      "kavlan-20": "2001:660:4406:3a0:104:0::1",
+      "kavlan-21": "2001:660:4406:6a0:104:0::1",
+      "kavlan-3": "2001:660:4406:182:4:0::1",
+      "kavlan-4": "2001:660:4406:190:4:0::1",
+      "kavlan-5": "2001:660:4406:191:4:0::1",
+      "kavlan-6": "2001:660:4406:192:4:0::1",
+      "kavlan-7": "2001:660:4406:193:4:0::1",
+      "kavlan-8": "2001:660:4406:194:4:0::1",
+      "kavlan-9": "2001:660:4406:195:4:0::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ab 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.19.1",
-      "ip6": "2001:660:4406:100:4::1",
+      "ip6": "2001:660:4406:100:4:0::1",
       "kavlan": true,
       "mac": "24:6e:96:91:1e:b0",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-2.json b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-2.json
index 9efdab7a639..b05b9ab0469 100644
--- a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-2.json
+++ b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:4::2",
-      "kavlan-11": "2001:660:4406:1a0:104::2",
-      "kavlan-12": "2001:660:4406:2a0:104::2",
-      "kavlan-13": "2001:660:4406:4a0:104::2",
-      "kavlan-14": "2001:660:4406:5a0:104::2",
-      "kavlan-16": "2001:660:4406:7a0:104::2",
-      "kavlan-18": "2001:660:4406:8a0:104::2",
-      "kavlan-2": "2001:660:4406:181:4::2",
-      "kavlan-20": "2001:660:4406:3a0:104::2",
-      "kavlan-21": "2001:660:4406:6a0:104::2",
-      "kavlan-3": "2001:660:4406:182:4::2",
-      "kavlan-4": "2001:660:4406:190:4::2",
-      "kavlan-5": "2001:660:4406:191:4::2",
-      "kavlan-6": "2001:660:4406:192:4::2",
-      "kavlan-7": "2001:660:4406:193:4::2",
-      "kavlan-8": "2001:660:4406:194:4::2",
-      "kavlan-9": "2001:660:4406:195:4::2"
+      "kavlan-1": "2001:660:4406:180:4:0::2",
+      "kavlan-11": "2001:660:4406:1a0:104:0::2",
+      "kavlan-12": "2001:660:4406:2a0:104:0::2",
+      "kavlan-13": "2001:660:4406:4a0:104:0::2",
+      "kavlan-14": "2001:660:4406:5a0:104:0::2",
+      "kavlan-16": "2001:660:4406:7a0:104:0::2",
+      "kavlan-18": "2001:660:4406:8a0:104:0::2",
+      "kavlan-2": "2001:660:4406:181:4:0::2",
+      "kavlan-20": "2001:660:4406:3a0:104:0::2",
+      "kavlan-21": "2001:660:4406:6a0:104:0::2",
+      "kavlan-3": "2001:660:4406:182:4:0::2",
+      "kavlan-4": "2001:660:4406:190:4:0::2",
+      "kavlan-5": "2001:660:4406:191:4:0::2",
+      "kavlan-6": "2001:660:4406:192:4:0::2",
+      "kavlan-7": "2001:660:4406:193:4:0::2",
+      "kavlan-8": "2001:660:4406:194:4:0::2",
+      "kavlan-9": "2001:660:4406:195:4:0::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ab 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.19.2",
-      "ip6": "2001:660:4406:100:4::2",
+      "ip6": "2001:660:4406:100:4:0::2",
       "kavlan": true,
       "mac": "24:6e:96:91:2b:50",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-3.json b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-3.json
index 2680a42015a..1b465ed5fed 100644
--- a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-3.json
+++ b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:4::3",
-      "kavlan-11": "2001:660:4406:1a0:104::3",
-      "kavlan-12": "2001:660:4406:2a0:104::3",
-      "kavlan-13": "2001:660:4406:4a0:104::3",
-      "kavlan-14": "2001:660:4406:5a0:104::3",
-      "kavlan-16": "2001:660:4406:7a0:104::3",
-      "kavlan-18": "2001:660:4406:8a0:104::3",
-      "kavlan-2": "2001:660:4406:181:4::3",
-      "kavlan-20": "2001:660:4406:3a0:104::3",
-      "kavlan-21": "2001:660:4406:6a0:104::3",
-      "kavlan-3": "2001:660:4406:182:4::3",
-      "kavlan-4": "2001:660:4406:190:4::3",
-      "kavlan-5": "2001:660:4406:191:4::3",
-      "kavlan-6": "2001:660:4406:192:4::3",
-      "kavlan-7": "2001:660:4406:193:4::3",
-      "kavlan-8": "2001:660:4406:194:4::3",
-      "kavlan-9": "2001:660:4406:195:4::3"
+      "kavlan-1": "2001:660:4406:180:4:0::3",
+      "kavlan-11": "2001:660:4406:1a0:104:0::3",
+      "kavlan-12": "2001:660:4406:2a0:104:0::3",
+      "kavlan-13": "2001:660:4406:4a0:104:0::3",
+      "kavlan-14": "2001:660:4406:5a0:104:0::3",
+      "kavlan-16": "2001:660:4406:7a0:104:0::3",
+      "kavlan-18": "2001:660:4406:8a0:104:0::3",
+      "kavlan-2": "2001:660:4406:181:4:0::3",
+      "kavlan-20": "2001:660:4406:3a0:104:0::3",
+      "kavlan-21": "2001:660:4406:6a0:104:0::3",
+      "kavlan-3": "2001:660:4406:182:4:0::3",
+      "kavlan-4": "2001:660:4406:190:4:0::3",
+      "kavlan-5": "2001:660:4406:191:4:0::3",
+      "kavlan-6": "2001:660:4406:192:4:0::3",
+      "kavlan-7": "2001:660:4406:193:4:0::3",
+      "kavlan-8": "2001:660:4406:194:4:0::3",
+      "kavlan-9": "2001:660:4406:195:4:0::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ab 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.19.3",
-      "ip6": "2001:660:4406:100:4::3",
+      "ip6": "2001:660:4406:100:4:0::3",
       "kavlan": true,
       "mac": "24:6e:96:91:4c:90",
       "management": false,
diff --git a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-4.json b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-4.json
index 23ff8035bd6..6eb7981bf30 100644
--- a/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-4.json
+++ b/data/grid5000/sites/grenoble/clusters/yeti/nodes/yeti-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:180:4::4",
-      "kavlan-11": "2001:660:4406:1a0:104::4",
-      "kavlan-12": "2001:660:4406:2a0:104::4",
-      "kavlan-13": "2001:660:4406:4a0:104::4",
-      "kavlan-14": "2001:660:4406:5a0:104::4",
-      "kavlan-16": "2001:660:4406:7a0:104::4",
-      "kavlan-18": "2001:660:4406:8a0:104::4",
-      "kavlan-2": "2001:660:4406:181:4::4",
-      "kavlan-20": "2001:660:4406:3a0:104::4",
-      "kavlan-21": "2001:660:4406:6a0:104::4",
-      "kavlan-3": "2001:660:4406:182:4::4",
-      "kavlan-4": "2001:660:4406:190:4::4",
-      "kavlan-5": "2001:660:4406:191:4::4",
-      "kavlan-6": "2001:660:4406:192:4::4",
-      "kavlan-7": "2001:660:4406:193:4::4",
-      "kavlan-8": "2001:660:4406:194:4::4",
-      "kavlan-9": "2001:660:4406:195:4::4"
+      "kavlan-1": "2001:660:4406:180:4:0::4",
+      "kavlan-11": "2001:660:4406:1a0:104:0::4",
+      "kavlan-12": "2001:660:4406:2a0:104:0::4",
+      "kavlan-13": "2001:660:4406:4a0:104:0::4",
+      "kavlan-14": "2001:660:4406:5a0:104:0::4",
+      "kavlan-16": "2001:660:4406:7a0:104:0::4",
+      "kavlan-18": "2001:660:4406:8a0:104:0::4",
+      "kavlan-2": "2001:660:4406:181:4:0::4",
+      "kavlan-20": "2001:660:4406:3a0:104:0::4",
+      "kavlan-21": "2001:660:4406:6a0:104:0::4",
+      "kavlan-3": "2001:660:4406:182:4:0::4",
+      "kavlan-4": "2001:660:4406:190:4:0::4",
+      "kavlan-5": "2001:660:4406:191:4:0::4",
+      "kavlan-6": "2001:660:4406:192:4:0::4",
+      "kavlan-7": "2001:660:4406:193:4:0::4",
+      "kavlan-8": "2001:660:4406:194:4:0::4",
+      "kavlan-9": "2001:660:4406:195:4:0::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800051ab 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.19.4",
-      "ip6": "2001:660:4406:100:4::4",
+      "ip6": "2001:660:4406:100:4:0::4",
       "kavlan": true,
       "mac": "24:6e:96:91:1d:b0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-1.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-1.json
index 64864b16fe2..792393ae3a7 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-1.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-1.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::1",
-      "kavlan-11": "2001:660:4406:1a0:206::1",
-      "kavlan-12": "2001:660:4406:2a0:206::1",
-      "kavlan-13": "2001:660:4406:4a0:206::1",
-      "kavlan-14": "2001:660:4406:5a0:206::1",
-      "kavlan-16": "2001:660:4406:7a0:206::1",
-      "kavlan-18": "2001:660:4406:8a0:206::1",
-      "kavlan-2": "2001:660:4406:281:6::1",
-      "kavlan-20": "2001:660:4406:3a0:206::1",
-      "kavlan-21": "2001:660:4406:6a0:206::1",
-      "kavlan-3": "2001:660:4406:282:6::1",
-      "kavlan-4": "2001:660:4406:290:6::1",
-      "kavlan-5": "2001:660:4406:291:6::1",
-      "kavlan-6": "2001:660:4406:292:6::1",
-      "kavlan-7": "2001:660:4406:293:6::1",
-      "kavlan-8": "2001:660:4406:294:6::1",
-      "kavlan-9": "2001:660:4406:295:6::1"
+      "kavlan-1": "2001:660:4406:280:6:0::1",
+      "kavlan-11": "2001:660:4406:1a0:206:0::1",
+      "kavlan-12": "2001:660:4406:2a0:206:0::1",
+      "kavlan-13": "2001:660:4406:4a0:206:0::1",
+      "kavlan-14": "2001:660:4406:5a0:206:0::1",
+      "kavlan-16": "2001:660:4406:7a0:206:0::1",
+      "kavlan-18": "2001:660:4406:8a0:206:0::1",
+      "kavlan-2": "2001:660:4406:281:6:0::1",
+      "kavlan-20": "2001:660:4406:3a0:206:0::1",
+      "kavlan-21": "2001:660:4406:6a0:206:0::1",
+      "kavlan-3": "2001:660:4406:282:6:0::1",
+      "kavlan-4": "2001:660:4406:290:6:0::1",
+      "kavlan-5": "2001:660:4406:291:6:0::1",
+      "kavlan-6": "2001:660:4406:292:6:0::1",
+      "kavlan-7": "2001:660:4406:293:6:0::1",
+      "kavlan-8": "2001:660:4406:294:6:0::1",
+      "kavlan-9": "2001:660:4406:295:6:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::1",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.1",
-      "ip6": "2001:660:4406:200:6::1",
+      "ip6": "2001:660:4406:200:6:0::1",
       "kavlan": true,
       "mac": "24:6e:96:2c:97:d0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-10.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-10.json
index cee15c23746..feb9ed133c4 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-10.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-10.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::a",
-      "kavlan-11": "2001:660:4406:1a0:206::a",
-      "kavlan-12": "2001:660:4406:2a0:206::a",
-      "kavlan-13": "2001:660:4406:4a0:206::a",
-      "kavlan-14": "2001:660:4406:5a0:206::a",
-      "kavlan-16": "2001:660:4406:7a0:206::a",
-      "kavlan-18": "2001:660:4406:8a0:206::a",
-      "kavlan-2": "2001:660:4406:281:6::a",
-      "kavlan-20": "2001:660:4406:3a0:206::a",
-      "kavlan-21": "2001:660:4406:6a0:206::a",
-      "kavlan-3": "2001:660:4406:282:6::a",
-      "kavlan-4": "2001:660:4406:290:6::a",
-      "kavlan-5": "2001:660:4406:291:6::a",
-      "kavlan-6": "2001:660:4406:292:6::a",
-      "kavlan-7": "2001:660:4406:293:6::a",
-      "kavlan-8": "2001:660:4406:294:6::a",
-      "kavlan-9": "2001:660:4406:295:6::a"
+      "kavlan-1": "2001:660:4406:280:6:0::a",
+      "kavlan-11": "2001:660:4406:1a0:206:0::a",
+      "kavlan-12": "2001:660:4406:2a0:206:0::a",
+      "kavlan-13": "2001:660:4406:4a0:206:0::a",
+      "kavlan-14": "2001:660:4406:5a0:206:0::a",
+      "kavlan-16": "2001:660:4406:7a0:206:0::a",
+      "kavlan-18": "2001:660:4406:8a0:206:0::a",
+      "kavlan-2": "2001:660:4406:281:6:0::a",
+      "kavlan-20": "2001:660:4406:3a0:206:0::a",
+      "kavlan-21": "2001:660:4406:6a0:206:0::a",
+      "kavlan-3": "2001:660:4406:282:6:0::a",
+      "kavlan-4": "2001:660:4406:290:6:0::a",
+      "kavlan-5": "2001:660:4406:291:6:0::a",
+      "kavlan-6": "2001:660:4406:292:6:0::a",
+      "kavlan-7": "2001:660:4406:293:6:0::a",
+      "kavlan-8": "2001:660:4406:294:6:0::a",
+      "kavlan-9": "2001:660:4406:295:6:0::a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::a",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.10",
-      "ip6": "2001:660:4406:200:6::a",
+      "ip6": "2001:660:4406:200:6:0::a",
       "kavlan": true,
       "mac": "24:6e:96:2c:9a:48",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-11.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-11.json
index 29d7d167a30..483721311a7 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-11.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-11.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::b",
-      "kavlan-11": "2001:660:4406:1a0:206::b",
-      "kavlan-12": "2001:660:4406:2a0:206::b",
-      "kavlan-13": "2001:660:4406:4a0:206::b",
-      "kavlan-14": "2001:660:4406:5a0:206::b",
-      "kavlan-16": "2001:660:4406:7a0:206::b",
-      "kavlan-18": "2001:660:4406:8a0:206::b",
-      "kavlan-2": "2001:660:4406:281:6::b",
-      "kavlan-20": "2001:660:4406:3a0:206::b",
-      "kavlan-21": "2001:660:4406:6a0:206::b",
-      "kavlan-3": "2001:660:4406:282:6::b",
-      "kavlan-4": "2001:660:4406:290:6::b",
-      "kavlan-5": "2001:660:4406:291:6::b",
-      "kavlan-6": "2001:660:4406:292:6::b",
-      "kavlan-7": "2001:660:4406:293:6::b",
-      "kavlan-8": "2001:660:4406:294:6::b",
-      "kavlan-9": "2001:660:4406:295:6::b"
+      "kavlan-1": "2001:660:4406:280:6:0::b",
+      "kavlan-11": "2001:660:4406:1a0:206:0::b",
+      "kavlan-12": "2001:660:4406:2a0:206:0::b",
+      "kavlan-13": "2001:660:4406:4a0:206:0::b",
+      "kavlan-14": "2001:660:4406:5a0:206:0::b",
+      "kavlan-16": "2001:660:4406:7a0:206:0::b",
+      "kavlan-18": "2001:660:4406:8a0:206:0::b",
+      "kavlan-2": "2001:660:4406:281:6:0::b",
+      "kavlan-20": "2001:660:4406:3a0:206:0::b",
+      "kavlan-21": "2001:660:4406:6a0:206:0::b",
+      "kavlan-3": "2001:660:4406:282:6:0::b",
+      "kavlan-4": "2001:660:4406:290:6:0::b",
+      "kavlan-5": "2001:660:4406:291:6:0::b",
+      "kavlan-6": "2001:660:4406:292:6:0::b",
+      "kavlan-7": "2001:660:4406:293:6:0::b",
+      "kavlan-8": "2001:660:4406:294:6:0::b",
+      "kavlan-9": "2001:660:4406:295:6:0::b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::b",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.11",
-      "ip6": "2001:660:4406:200:6::b",
+      "ip6": "2001:660:4406:200:6:0::b",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:d8",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-12.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-12.json
index 13f98d32341..313df8b2ee7 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-12.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-12.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::c",
-      "kavlan-11": "2001:660:4406:1a0:206::c",
-      "kavlan-12": "2001:660:4406:2a0:206::c",
-      "kavlan-13": "2001:660:4406:4a0:206::c",
-      "kavlan-14": "2001:660:4406:5a0:206::c",
-      "kavlan-16": "2001:660:4406:7a0:206::c",
-      "kavlan-18": "2001:660:4406:8a0:206::c",
-      "kavlan-2": "2001:660:4406:281:6::c",
-      "kavlan-20": "2001:660:4406:3a0:206::c",
-      "kavlan-21": "2001:660:4406:6a0:206::c",
-      "kavlan-3": "2001:660:4406:282:6::c",
-      "kavlan-4": "2001:660:4406:290:6::c",
-      "kavlan-5": "2001:660:4406:291:6::c",
-      "kavlan-6": "2001:660:4406:292:6::c",
-      "kavlan-7": "2001:660:4406:293:6::c",
-      "kavlan-8": "2001:660:4406:294:6::c",
-      "kavlan-9": "2001:660:4406:295:6::c"
+      "kavlan-1": "2001:660:4406:280:6:0::c",
+      "kavlan-11": "2001:660:4406:1a0:206:0::c",
+      "kavlan-12": "2001:660:4406:2a0:206:0::c",
+      "kavlan-13": "2001:660:4406:4a0:206:0::c",
+      "kavlan-14": "2001:660:4406:5a0:206:0::c",
+      "kavlan-16": "2001:660:4406:7a0:206:0::c",
+      "kavlan-18": "2001:660:4406:8a0:206:0::c",
+      "kavlan-2": "2001:660:4406:281:6:0::c",
+      "kavlan-20": "2001:660:4406:3a0:206:0::c",
+      "kavlan-21": "2001:660:4406:6a0:206:0::c",
+      "kavlan-3": "2001:660:4406:282:6:0::c",
+      "kavlan-4": "2001:660:4406:290:6:0::c",
+      "kavlan-5": "2001:660:4406:291:6:0::c",
+      "kavlan-6": "2001:660:4406:292:6:0::c",
+      "kavlan-7": "2001:660:4406:293:6:0::c",
+      "kavlan-8": "2001:660:4406:294:6:0::c",
+      "kavlan-9": "2001:660:4406:295:6:0::c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::c",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.12",
-      "ip6": "2001:660:4406:200:6::c",
+      "ip6": "2001:660:4406:200:6:0::c",
       "kavlan": true,
       "mac": "24:6e:96:2c:bc:b0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-13.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-13.json
index bdc19a776ef..2ccaa0346f8 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-13.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-13.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::d",
-      "kavlan-11": "2001:660:4406:1a0:206::d",
-      "kavlan-12": "2001:660:4406:2a0:206::d",
-      "kavlan-13": "2001:660:4406:4a0:206::d",
-      "kavlan-14": "2001:660:4406:5a0:206::d",
-      "kavlan-16": "2001:660:4406:7a0:206::d",
-      "kavlan-18": "2001:660:4406:8a0:206::d",
-      "kavlan-2": "2001:660:4406:281:6::d",
-      "kavlan-20": "2001:660:4406:3a0:206::d",
-      "kavlan-21": "2001:660:4406:6a0:206::d",
-      "kavlan-3": "2001:660:4406:282:6::d",
-      "kavlan-4": "2001:660:4406:290:6::d",
-      "kavlan-5": "2001:660:4406:291:6::d",
-      "kavlan-6": "2001:660:4406:292:6::d",
-      "kavlan-7": "2001:660:4406:293:6::d",
-      "kavlan-8": "2001:660:4406:294:6::d",
-      "kavlan-9": "2001:660:4406:295:6::d"
+      "kavlan-1": "2001:660:4406:280:6:0::d",
+      "kavlan-11": "2001:660:4406:1a0:206:0::d",
+      "kavlan-12": "2001:660:4406:2a0:206:0::d",
+      "kavlan-13": "2001:660:4406:4a0:206:0::d",
+      "kavlan-14": "2001:660:4406:5a0:206:0::d",
+      "kavlan-16": "2001:660:4406:7a0:206:0::d",
+      "kavlan-18": "2001:660:4406:8a0:206:0::d",
+      "kavlan-2": "2001:660:4406:281:6:0::d",
+      "kavlan-20": "2001:660:4406:3a0:206:0::d",
+      "kavlan-21": "2001:660:4406:6a0:206:0::d",
+      "kavlan-3": "2001:660:4406:282:6:0::d",
+      "kavlan-4": "2001:660:4406:290:6:0::d",
+      "kavlan-5": "2001:660:4406:291:6:0::d",
+      "kavlan-6": "2001:660:4406:292:6:0::d",
+      "kavlan-7": "2001:660:4406:293:6:0::d",
+      "kavlan-8": "2001:660:4406:294:6:0::d",
+      "kavlan-9": "2001:660:4406:295:6:0::d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::d",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.13",
-      "ip6": "2001:660:4406:200:6::d",
+      "ip6": "2001:660:4406:200:6:0::d",
       "kavlan": true,
       "mac": "24:6e:96:2c:85:c8",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-14.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-14.json
index de9357c89c4..b5eddf932dc 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-14.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-14.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::e",
-      "kavlan-11": "2001:660:4406:1a0:206::e",
-      "kavlan-12": "2001:660:4406:2a0:206::e",
-      "kavlan-13": "2001:660:4406:4a0:206::e",
-      "kavlan-14": "2001:660:4406:5a0:206::e",
-      "kavlan-16": "2001:660:4406:7a0:206::e",
-      "kavlan-18": "2001:660:4406:8a0:206::e",
-      "kavlan-2": "2001:660:4406:281:6::e",
-      "kavlan-20": "2001:660:4406:3a0:206::e",
-      "kavlan-21": "2001:660:4406:6a0:206::e",
-      "kavlan-3": "2001:660:4406:282:6::e",
-      "kavlan-4": "2001:660:4406:290:6::e",
-      "kavlan-5": "2001:660:4406:291:6::e",
-      "kavlan-6": "2001:660:4406:292:6::e",
-      "kavlan-7": "2001:660:4406:293:6::e",
-      "kavlan-8": "2001:660:4406:294:6::e",
-      "kavlan-9": "2001:660:4406:295:6::e"
+      "kavlan-1": "2001:660:4406:280:6:0::e",
+      "kavlan-11": "2001:660:4406:1a0:206:0::e",
+      "kavlan-12": "2001:660:4406:2a0:206:0::e",
+      "kavlan-13": "2001:660:4406:4a0:206:0::e",
+      "kavlan-14": "2001:660:4406:5a0:206:0::e",
+      "kavlan-16": "2001:660:4406:7a0:206:0::e",
+      "kavlan-18": "2001:660:4406:8a0:206:0::e",
+      "kavlan-2": "2001:660:4406:281:6:0::e",
+      "kavlan-20": "2001:660:4406:3a0:206:0::e",
+      "kavlan-21": "2001:660:4406:6a0:206:0::e",
+      "kavlan-3": "2001:660:4406:282:6:0::e",
+      "kavlan-4": "2001:660:4406:290:6:0::e",
+      "kavlan-5": "2001:660:4406:291:6:0::e",
+      "kavlan-6": "2001:660:4406:292:6:0::e",
+      "kavlan-7": "2001:660:4406:293:6:0::e",
+      "kavlan-8": "2001:660:4406:294:6:0::e",
+      "kavlan-9": "2001:660:4406:295:6:0::e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::e",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.14",
-      "ip6": "2001:660:4406:200:6::e",
+      "ip6": "2001:660:4406:200:6:0::e",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:88",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-15.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-15.json
index 322c6a26c37..a76dbfc9976 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-15.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-15.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::f",
-      "kavlan-11": "2001:660:4406:1a0:206::f",
-      "kavlan-12": "2001:660:4406:2a0:206::f",
-      "kavlan-13": "2001:660:4406:4a0:206::f",
-      "kavlan-14": "2001:660:4406:5a0:206::f",
-      "kavlan-16": "2001:660:4406:7a0:206::f",
-      "kavlan-18": "2001:660:4406:8a0:206::f",
-      "kavlan-2": "2001:660:4406:281:6::f",
-      "kavlan-20": "2001:660:4406:3a0:206::f",
-      "kavlan-21": "2001:660:4406:6a0:206::f",
-      "kavlan-3": "2001:660:4406:282:6::f",
-      "kavlan-4": "2001:660:4406:290:6::f",
-      "kavlan-5": "2001:660:4406:291:6::f",
-      "kavlan-6": "2001:660:4406:292:6::f",
-      "kavlan-7": "2001:660:4406:293:6::f",
-      "kavlan-8": "2001:660:4406:294:6::f",
-      "kavlan-9": "2001:660:4406:295:6::f"
+      "kavlan-1": "2001:660:4406:280:6:0::f",
+      "kavlan-11": "2001:660:4406:1a0:206:0::f",
+      "kavlan-12": "2001:660:4406:2a0:206:0::f",
+      "kavlan-13": "2001:660:4406:4a0:206:0::f",
+      "kavlan-14": "2001:660:4406:5a0:206:0::f",
+      "kavlan-16": "2001:660:4406:7a0:206:0::f",
+      "kavlan-18": "2001:660:4406:8a0:206:0::f",
+      "kavlan-2": "2001:660:4406:281:6:0::f",
+      "kavlan-20": "2001:660:4406:3a0:206:0::f",
+      "kavlan-21": "2001:660:4406:6a0:206:0::f",
+      "kavlan-3": "2001:660:4406:282:6:0::f",
+      "kavlan-4": "2001:660:4406:290:6:0::f",
+      "kavlan-5": "2001:660:4406:291:6:0::f",
+      "kavlan-6": "2001:660:4406:292:6:0::f",
+      "kavlan-7": "2001:660:4406:293:6:0::f",
+      "kavlan-8": "2001:660:4406:294:6:0::f",
+      "kavlan-9": "2001:660:4406:295:6:0::f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::f",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.15",
-      "ip6": "2001:660:4406:200:6::f",
+      "ip6": "2001:660:4406:200:6:0::f",
       "kavlan": true,
       "mac": "24:6e:96:2c:c0:50",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-2.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-2.json
index 97255476cb8..172bec7f7ce 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-2.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-2.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::2",
-      "kavlan-11": "2001:660:4406:1a0:206::2",
-      "kavlan-12": "2001:660:4406:2a0:206::2",
-      "kavlan-13": "2001:660:4406:4a0:206::2",
-      "kavlan-14": "2001:660:4406:5a0:206::2",
-      "kavlan-16": "2001:660:4406:7a0:206::2",
-      "kavlan-18": "2001:660:4406:8a0:206::2",
-      "kavlan-2": "2001:660:4406:281:6::2",
-      "kavlan-20": "2001:660:4406:3a0:206::2",
-      "kavlan-21": "2001:660:4406:6a0:206::2",
-      "kavlan-3": "2001:660:4406:282:6::2",
-      "kavlan-4": "2001:660:4406:290:6::2",
-      "kavlan-5": "2001:660:4406:291:6::2",
-      "kavlan-6": "2001:660:4406:292:6::2",
-      "kavlan-7": "2001:660:4406:293:6::2",
-      "kavlan-8": "2001:660:4406:294:6::2",
-      "kavlan-9": "2001:660:4406:295:6::2"
+      "kavlan-1": "2001:660:4406:280:6:0::2",
+      "kavlan-11": "2001:660:4406:1a0:206:0::2",
+      "kavlan-12": "2001:660:4406:2a0:206:0::2",
+      "kavlan-13": "2001:660:4406:4a0:206:0::2",
+      "kavlan-14": "2001:660:4406:5a0:206:0::2",
+      "kavlan-16": "2001:660:4406:7a0:206:0::2",
+      "kavlan-18": "2001:660:4406:8a0:206:0::2",
+      "kavlan-2": "2001:660:4406:281:6:0::2",
+      "kavlan-20": "2001:660:4406:3a0:206:0::2",
+      "kavlan-21": "2001:660:4406:6a0:206:0::2",
+      "kavlan-3": "2001:660:4406:282:6:0::2",
+      "kavlan-4": "2001:660:4406:290:6:0::2",
+      "kavlan-5": "2001:660:4406:291:6:0::2",
+      "kavlan-6": "2001:660:4406:292:6:0::2",
+      "kavlan-7": "2001:660:4406:293:6:0::2",
+      "kavlan-8": "2001:660:4406:294:6:0::2",
+      "kavlan-9": "2001:660:4406:295:6:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::2",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.2",
-      "ip6": "2001:660:4406:200:6::2",
+      "ip6": "2001:660:4406:200:6:0::2",
       "kavlan": true,
       "mac": "24:6e:96:2c:a5:80",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-3.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-3.json
index 4d8518b0590..523d4c55115 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-3.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-3.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::3",
-      "kavlan-11": "2001:660:4406:1a0:206::3",
-      "kavlan-12": "2001:660:4406:2a0:206::3",
-      "kavlan-13": "2001:660:4406:4a0:206::3",
-      "kavlan-14": "2001:660:4406:5a0:206::3",
-      "kavlan-16": "2001:660:4406:7a0:206::3",
-      "kavlan-18": "2001:660:4406:8a0:206::3",
-      "kavlan-2": "2001:660:4406:281:6::3",
-      "kavlan-20": "2001:660:4406:3a0:206::3",
-      "kavlan-21": "2001:660:4406:6a0:206::3",
-      "kavlan-3": "2001:660:4406:282:6::3",
-      "kavlan-4": "2001:660:4406:290:6::3",
-      "kavlan-5": "2001:660:4406:291:6::3",
-      "kavlan-6": "2001:660:4406:292:6::3",
-      "kavlan-7": "2001:660:4406:293:6::3",
-      "kavlan-8": "2001:660:4406:294:6::3",
-      "kavlan-9": "2001:660:4406:295:6::3"
+      "kavlan-1": "2001:660:4406:280:6:0::3",
+      "kavlan-11": "2001:660:4406:1a0:206:0::3",
+      "kavlan-12": "2001:660:4406:2a0:206:0::3",
+      "kavlan-13": "2001:660:4406:4a0:206:0::3",
+      "kavlan-14": "2001:660:4406:5a0:206:0::3",
+      "kavlan-16": "2001:660:4406:7a0:206:0::3",
+      "kavlan-18": "2001:660:4406:8a0:206:0::3",
+      "kavlan-2": "2001:660:4406:281:6:0::3",
+      "kavlan-20": "2001:660:4406:3a0:206:0::3",
+      "kavlan-21": "2001:660:4406:6a0:206:0::3",
+      "kavlan-3": "2001:660:4406:282:6:0::3",
+      "kavlan-4": "2001:660:4406:290:6:0::3",
+      "kavlan-5": "2001:660:4406:291:6:0::3",
+      "kavlan-6": "2001:660:4406:292:6:0::3",
+      "kavlan-7": "2001:660:4406:293:6:0::3",
+      "kavlan-8": "2001:660:4406:294:6:0::3",
+      "kavlan-9": "2001:660:4406:295:6:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::3",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.3",
-      "ip6": "2001:660:4406:200:6::3",
+      "ip6": "2001:660:4406:200:6:0::3",
       "kavlan": true,
       "mac": "24:6e:96:2c:85:48",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-4.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-4.json
index 7c7cb97c9dc..d7df362392a 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-4.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-4.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::4",
-      "kavlan-11": "2001:660:4406:1a0:206::4",
-      "kavlan-12": "2001:660:4406:2a0:206::4",
-      "kavlan-13": "2001:660:4406:4a0:206::4",
-      "kavlan-14": "2001:660:4406:5a0:206::4",
-      "kavlan-16": "2001:660:4406:7a0:206::4",
-      "kavlan-18": "2001:660:4406:8a0:206::4",
-      "kavlan-2": "2001:660:4406:281:6::4",
-      "kavlan-20": "2001:660:4406:3a0:206::4",
-      "kavlan-21": "2001:660:4406:6a0:206::4",
-      "kavlan-3": "2001:660:4406:282:6::4",
-      "kavlan-4": "2001:660:4406:290:6::4",
-      "kavlan-5": "2001:660:4406:291:6::4",
-      "kavlan-6": "2001:660:4406:292:6::4",
-      "kavlan-7": "2001:660:4406:293:6::4",
-      "kavlan-8": "2001:660:4406:294:6::4",
-      "kavlan-9": "2001:660:4406:295:6::4"
+      "kavlan-1": "2001:660:4406:280:6:0::4",
+      "kavlan-11": "2001:660:4406:1a0:206:0::4",
+      "kavlan-12": "2001:660:4406:2a0:206:0::4",
+      "kavlan-13": "2001:660:4406:4a0:206:0::4",
+      "kavlan-14": "2001:660:4406:5a0:206:0::4",
+      "kavlan-16": "2001:660:4406:7a0:206:0::4",
+      "kavlan-18": "2001:660:4406:8a0:206:0::4",
+      "kavlan-2": "2001:660:4406:281:6:0::4",
+      "kavlan-20": "2001:660:4406:3a0:206:0::4",
+      "kavlan-21": "2001:660:4406:6a0:206:0::4",
+      "kavlan-3": "2001:660:4406:282:6:0::4",
+      "kavlan-4": "2001:660:4406:290:6:0::4",
+      "kavlan-5": "2001:660:4406:291:6:0::4",
+      "kavlan-6": "2001:660:4406:292:6:0::4",
+      "kavlan-7": "2001:660:4406:293:6:0::4",
+      "kavlan-8": "2001:660:4406:294:6:0::4",
+      "kavlan-9": "2001:660:4406:295:6:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::4",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.4",
-      "ip6": "2001:660:4406:200:6::4",
+      "ip6": "2001:660:4406:200:6:0::4",
       "kavlan": true,
       "mac": "24:6e:96:2c:98:b0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-5.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-5.json
index 686671c6773..00622ed8de8 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-5.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-5.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::5",
-      "kavlan-11": "2001:660:4406:1a0:206::5",
-      "kavlan-12": "2001:660:4406:2a0:206::5",
-      "kavlan-13": "2001:660:4406:4a0:206::5",
-      "kavlan-14": "2001:660:4406:5a0:206::5",
-      "kavlan-16": "2001:660:4406:7a0:206::5",
-      "kavlan-18": "2001:660:4406:8a0:206::5",
-      "kavlan-2": "2001:660:4406:281:6::5",
-      "kavlan-20": "2001:660:4406:3a0:206::5",
-      "kavlan-21": "2001:660:4406:6a0:206::5",
-      "kavlan-3": "2001:660:4406:282:6::5",
-      "kavlan-4": "2001:660:4406:290:6::5",
-      "kavlan-5": "2001:660:4406:291:6::5",
-      "kavlan-6": "2001:660:4406:292:6::5",
-      "kavlan-7": "2001:660:4406:293:6::5",
-      "kavlan-8": "2001:660:4406:294:6::5",
-      "kavlan-9": "2001:660:4406:295:6::5"
+      "kavlan-1": "2001:660:4406:280:6:0::5",
+      "kavlan-11": "2001:660:4406:1a0:206:0::5",
+      "kavlan-12": "2001:660:4406:2a0:206:0::5",
+      "kavlan-13": "2001:660:4406:4a0:206:0::5",
+      "kavlan-14": "2001:660:4406:5a0:206:0::5",
+      "kavlan-16": "2001:660:4406:7a0:206:0::5",
+      "kavlan-18": "2001:660:4406:8a0:206:0::5",
+      "kavlan-2": "2001:660:4406:281:6:0::5",
+      "kavlan-20": "2001:660:4406:3a0:206:0::5",
+      "kavlan-21": "2001:660:4406:6a0:206:0::5",
+      "kavlan-3": "2001:660:4406:282:6:0::5",
+      "kavlan-4": "2001:660:4406:290:6:0::5",
+      "kavlan-5": "2001:660:4406:291:6:0::5",
+      "kavlan-6": "2001:660:4406:292:6:0::5",
+      "kavlan-7": "2001:660:4406:293:6:0::5",
+      "kavlan-8": "2001:660:4406:294:6:0::5",
+      "kavlan-9": "2001:660:4406:295:6:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::5",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.5",
-      "ip6": "2001:660:4406:200:6::5",
+      "ip6": "2001:660:4406:200:6:0::5",
       "kavlan": true,
       "mac": "24:6e:96:2c:b5:40",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-6.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-6.json
index dd05db3c23b..56712c51676 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-6.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-6.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::6",
-      "kavlan-11": "2001:660:4406:1a0:206::6",
-      "kavlan-12": "2001:660:4406:2a0:206::6",
-      "kavlan-13": "2001:660:4406:4a0:206::6",
-      "kavlan-14": "2001:660:4406:5a0:206::6",
-      "kavlan-16": "2001:660:4406:7a0:206::6",
-      "kavlan-18": "2001:660:4406:8a0:206::6",
-      "kavlan-2": "2001:660:4406:281:6::6",
-      "kavlan-20": "2001:660:4406:3a0:206::6",
-      "kavlan-21": "2001:660:4406:6a0:206::6",
-      "kavlan-3": "2001:660:4406:282:6::6",
-      "kavlan-4": "2001:660:4406:290:6::6",
-      "kavlan-5": "2001:660:4406:291:6::6",
-      "kavlan-6": "2001:660:4406:292:6::6",
-      "kavlan-7": "2001:660:4406:293:6::6",
-      "kavlan-8": "2001:660:4406:294:6::6",
-      "kavlan-9": "2001:660:4406:295:6::6"
+      "kavlan-1": "2001:660:4406:280:6:0::6",
+      "kavlan-11": "2001:660:4406:1a0:206:0::6",
+      "kavlan-12": "2001:660:4406:2a0:206:0::6",
+      "kavlan-13": "2001:660:4406:4a0:206:0::6",
+      "kavlan-14": "2001:660:4406:5a0:206:0::6",
+      "kavlan-16": "2001:660:4406:7a0:206:0::6",
+      "kavlan-18": "2001:660:4406:8a0:206:0::6",
+      "kavlan-2": "2001:660:4406:281:6:0::6",
+      "kavlan-20": "2001:660:4406:3a0:206:0::6",
+      "kavlan-21": "2001:660:4406:6a0:206:0::6",
+      "kavlan-3": "2001:660:4406:282:6:0::6",
+      "kavlan-4": "2001:660:4406:290:6:0::6",
+      "kavlan-5": "2001:660:4406:291:6:0::6",
+      "kavlan-6": "2001:660:4406:292:6:0::6",
+      "kavlan-7": "2001:660:4406:293:6:0::6",
+      "kavlan-8": "2001:660:4406:294:6:0::6",
+      "kavlan-9": "2001:660:4406:295:6:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::6",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.6",
-      "ip6": "2001:660:4406:200:6::6",
+      "ip6": "2001:660:4406:200:6:0::6",
       "kavlan": true,
       "mac": "24:6e:96:2c:a6:10",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-7.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-7.json
index c595693c40c..c6742ba4eda 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-7.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-7.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::7",
-      "kavlan-11": "2001:660:4406:1a0:206::7",
-      "kavlan-12": "2001:660:4406:2a0:206::7",
-      "kavlan-13": "2001:660:4406:4a0:206::7",
-      "kavlan-14": "2001:660:4406:5a0:206::7",
-      "kavlan-16": "2001:660:4406:7a0:206::7",
-      "kavlan-18": "2001:660:4406:8a0:206::7",
-      "kavlan-2": "2001:660:4406:281:6::7",
-      "kavlan-20": "2001:660:4406:3a0:206::7",
-      "kavlan-21": "2001:660:4406:6a0:206::7",
-      "kavlan-3": "2001:660:4406:282:6::7",
-      "kavlan-4": "2001:660:4406:290:6::7",
-      "kavlan-5": "2001:660:4406:291:6::7",
-      "kavlan-6": "2001:660:4406:292:6::7",
-      "kavlan-7": "2001:660:4406:293:6::7",
-      "kavlan-8": "2001:660:4406:294:6::7",
-      "kavlan-9": "2001:660:4406:295:6::7"
+      "kavlan-1": "2001:660:4406:280:6:0::7",
+      "kavlan-11": "2001:660:4406:1a0:206:0::7",
+      "kavlan-12": "2001:660:4406:2a0:206:0::7",
+      "kavlan-13": "2001:660:4406:4a0:206:0::7",
+      "kavlan-14": "2001:660:4406:5a0:206:0::7",
+      "kavlan-16": "2001:660:4406:7a0:206:0::7",
+      "kavlan-18": "2001:660:4406:8a0:206:0::7",
+      "kavlan-2": "2001:660:4406:281:6:0::7",
+      "kavlan-20": "2001:660:4406:3a0:206:0::7",
+      "kavlan-21": "2001:660:4406:6a0:206:0::7",
+      "kavlan-3": "2001:660:4406:282:6:0::7",
+      "kavlan-4": "2001:660:4406:290:6:0::7",
+      "kavlan-5": "2001:660:4406:291:6:0::7",
+      "kavlan-6": "2001:660:4406:292:6:0::7",
+      "kavlan-7": "2001:660:4406:293:6:0::7",
+      "kavlan-8": "2001:660:4406:294:6:0::7",
+      "kavlan-9": "2001:660:4406:295:6:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::7",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.7",
-      "ip6": "2001:660:4406:200:6::7",
+      "ip6": "2001:660:4406:200:6:0::7",
       "kavlan": true,
       "mac": "24:6e:96:2c:7b:50",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-8.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-8.json
index 7faf64f34b7..ac686eb0745 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-8.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-8.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::8",
-      "kavlan-11": "2001:660:4406:1a0:206::8",
-      "kavlan-12": "2001:660:4406:2a0:206::8",
-      "kavlan-13": "2001:660:4406:4a0:206::8",
-      "kavlan-14": "2001:660:4406:5a0:206::8",
-      "kavlan-16": "2001:660:4406:7a0:206::8",
-      "kavlan-18": "2001:660:4406:8a0:206::8",
-      "kavlan-2": "2001:660:4406:281:6::8",
-      "kavlan-20": "2001:660:4406:3a0:206::8",
-      "kavlan-21": "2001:660:4406:6a0:206::8",
-      "kavlan-3": "2001:660:4406:282:6::8",
-      "kavlan-4": "2001:660:4406:290:6::8",
-      "kavlan-5": "2001:660:4406:291:6::8",
-      "kavlan-6": "2001:660:4406:292:6::8",
-      "kavlan-7": "2001:660:4406:293:6::8",
-      "kavlan-8": "2001:660:4406:294:6::8",
-      "kavlan-9": "2001:660:4406:295:6::8"
+      "kavlan-1": "2001:660:4406:280:6:0::8",
+      "kavlan-11": "2001:660:4406:1a0:206:0::8",
+      "kavlan-12": "2001:660:4406:2a0:206:0::8",
+      "kavlan-13": "2001:660:4406:4a0:206:0::8",
+      "kavlan-14": "2001:660:4406:5a0:206:0::8",
+      "kavlan-16": "2001:660:4406:7a0:206:0::8",
+      "kavlan-18": "2001:660:4406:8a0:206:0::8",
+      "kavlan-2": "2001:660:4406:281:6:0::8",
+      "kavlan-20": "2001:660:4406:3a0:206:0::8",
+      "kavlan-21": "2001:660:4406:6a0:206:0::8",
+      "kavlan-3": "2001:660:4406:282:6:0::8",
+      "kavlan-4": "2001:660:4406:290:6:0::8",
+      "kavlan-5": "2001:660:4406:291:6:0::8",
+      "kavlan-6": "2001:660:4406:292:6:0::8",
+      "kavlan-7": "2001:660:4406:293:6:0::8",
+      "kavlan-8": "2001:660:4406:294:6:0::8",
+      "kavlan-9": "2001:660:4406:295:6:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::8",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.8",
-      "ip6": "2001:660:4406:200:6::8",
+      "ip6": "2001:660:4406:200:6:0::8",
       "kavlan": true,
       "mac": "24:6e:96:2c:98:28",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-9.json b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-9.json
index 3f068ceed20..996c7490b09 100644
--- a/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-9.json
+++ b/data/grid5000/sites/lille/clusters/chetemi/nodes/chetemi-9.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:6::9",
-      "kavlan-11": "2001:660:4406:1a0:206::9",
-      "kavlan-12": "2001:660:4406:2a0:206::9",
-      "kavlan-13": "2001:660:4406:4a0:206::9",
-      "kavlan-14": "2001:660:4406:5a0:206::9",
-      "kavlan-16": "2001:660:4406:7a0:206::9",
-      "kavlan-18": "2001:660:4406:8a0:206::9",
-      "kavlan-2": "2001:660:4406:281:6::9",
-      "kavlan-20": "2001:660:4406:3a0:206::9",
-      "kavlan-21": "2001:660:4406:6a0:206::9",
-      "kavlan-3": "2001:660:4406:282:6::9",
-      "kavlan-4": "2001:660:4406:290:6::9",
-      "kavlan-5": "2001:660:4406:291:6::9",
-      "kavlan-6": "2001:660:4406:292:6::9",
-      "kavlan-7": "2001:660:4406:293:6::9",
-      "kavlan-8": "2001:660:4406:294:6::9",
-      "kavlan-9": "2001:660:4406:295:6::9"
+      "kavlan-1": "2001:660:4406:280:6:0::9",
+      "kavlan-11": "2001:660:4406:1a0:206:0::9",
+      "kavlan-12": "2001:660:4406:2a0:206:0::9",
+      "kavlan-13": "2001:660:4406:4a0:206:0::9",
+      "kavlan-14": "2001:660:4406:5a0:206:0::9",
+      "kavlan-16": "2001:660:4406:7a0:206:0::9",
+      "kavlan-18": "2001:660:4406:8a0:206:0::9",
+      "kavlan-2": "2001:660:4406:281:6:0::9",
+      "kavlan-20": "2001:660:4406:3a0:206:0::9",
+      "kavlan-21": "2001:660:4406:6a0:206:0::9",
+      "kavlan-3": "2001:660:4406:282:6:0::9",
+      "kavlan-4": "2001:660:4406:290:6:0::9",
+      "kavlan-5": "2001:660:4406:291:6:0::9",
+      "kavlan-6": "2001:660:4406:292:6:0::9",
+      "kavlan-7": "2001:660:4406:293:6:0::9",
+      "kavlan-8": "2001:660:4406:294:6:0::9",
+      "kavlan-9": "2001:660:4406:295:6:0::9"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:6:1::9",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.37.9",
-      "ip6": "2001:660:4406:200:6::9",
+      "ip6": "2001:660:4406:200:6:0::9",
       "kavlan": true,
       "mac": "24:6e:96:2c:a8:80",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-1.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-1.json
index 3c8d1761aa5..c49d1c39c10 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-1.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-1.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8::1",
-      "kavlan-11": "2001:660:4406:1a0:208::1",
-      "kavlan-12": "2001:660:4406:2a0:208::1",
-      "kavlan-13": "2001:660:4406:4a0:208::1",
-      "kavlan-14": "2001:660:4406:5a0:208::1",
-      "kavlan-16": "2001:660:4406:7a0:208::1",
-      "kavlan-18": "2001:660:4406:8a0:208::1",
-      "kavlan-2": "2001:660:4406:281:8::1",
-      "kavlan-20": "2001:660:4406:3a0:208::1",
-      "kavlan-21": "2001:660:4406:6a0:208::1",
-      "kavlan-3": "2001:660:4406:282:8::1",
-      "kavlan-4": "2001:660:4406:290:8::1",
-      "kavlan-5": "2001:660:4406:291:8::1",
-      "kavlan-6": "2001:660:4406:292:8::1",
-      "kavlan-7": "2001:660:4406:293:8::1",
-      "kavlan-8": "2001:660:4406:294:8::1",
-      "kavlan-9": "2001:660:4406:295:8::1"
+      "kavlan-1": "2001:660:4406:280:8:0::1",
+      "kavlan-11": "2001:660:4406:1a0:208:0::1",
+      "kavlan-12": "2001:660:4406:2a0:208:0::1",
+      "kavlan-13": "2001:660:4406:4a0:208:0::1",
+      "kavlan-14": "2001:660:4406:5a0:208:0::1",
+      "kavlan-16": "2001:660:4406:7a0:208:0::1",
+      "kavlan-18": "2001:660:4406:8a0:208:0::1",
+      "kavlan-2": "2001:660:4406:281:8:0::1",
+      "kavlan-20": "2001:660:4406:3a0:208:0::1",
+      "kavlan-21": "2001:660:4406:6a0:208:0::1",
+      "kavlan-3": "2001:660:4406:282:8:0::1",
+      "kavlan-4": "2001:660:4406:290:8:0::1",
+      "kavlan-5": "2001:660:4406:291:8:0::1",
+      "kavlan-6": "2001:660:4406:292:8:0::1",
+      "kavlan-7": "2001:660:4406:293:8:0::1",
+      "kavlan-8": "2001:660:4406:294:8:0::1",
+      "kavlan-9": "2001:660:4406:295:8:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:8:1::1",
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.1",
-      "ip6": "2001:660:4406:200:8::1",
+      "ip6": "2001:660:4406:200:8:0::1",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:40",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-2.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-2.json
index 38840e5c071..4ed8125e68a 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-2.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-2.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8::2",
-      "kavlan-11": "2001:660:4406:1a0:208::2",
-      "kavlan-12": "2001:660:4406:2a0:208::2",
-      "kavlan-13": "2001:660:4406:4a0:208::2",
-      "kavlan-14": "2001:660:4406:5a0:208::2",
-      "kavlan-16": "2001:660:4406:7a0:208::2",
-      "kavlan-18": "2001:660:4406:8a0:208::2",
-      "kavlan-2": "2001:660:4406:281:8::2",
-      "kavlan-20": "2001:660:4406:3a0:208::2",
-      "kavlan-21": "2001:660:4406:6a0:208::2",
-      "kavlan-3": "2001:660:4406:282:8::2",
-      "kavlan-4": "2001:660:4406:290:8::2",
-      "kavlan-5": "2001:660:4406:291:8::2",
-      "kavlan-6": "2001:660:4406:292:8::2",
-      "kavlan-7": "2001:660:4406:293:8::2",
-      "kavlan-8": "2001:660:4406:294:8::2",
-      "kavlan-9": "2001:660:4406:295:8::2"
+      "kavlan-1": "2001:660:4406:280:8:0::2",
+      "kavlan-11": "2001:660:4406:1a0:208:0::2",
+      "kavlan-12": "2001:660:4406:2a0:208:0::2",
+      "kavlan-13": "2001:660:4406:4a0:208:0::2",
+      "kavlan-14": "2001:660:4406:5a0:208:0::2",
+      "kavlan-16": "2001:660:4406:7a0:208:0::2",
+      "kavlan-18": "2001:660:4406:8a0:208:0::2",
+      "kavlan-2": "2001:660:4406:281:8:0::2",
+      "kavlan-20": "2001:660:4406:3a0:208:0::2",
+      "kavlan-21": "2001:660:4406:6a0:208:0::2",
+      "kavlan-3": "2001:660:4406:282:8:0::2",
+      "kavlan-4": "2001:660:4406:290:8:0::2",
+      "kavlan-5": "2001:660:4406:291:8:0::2",
+      "kavlan-6": "2001:660:4406:292:8:0::2",
+      "kavlan-7": "2001:660:4406:293:8:0::2",
+      "kavlan-8": "2001:660:4406:294:8:0::2",
+      "kavlan-9": "2001:660:4406:295:8:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:8:1::2",
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.2",
-      "ip6": "2001:660:4406:200:8::2",
+      "ip6": "2001:660:4406:200:8:0::2",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:72:c0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-3.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-3.json
index d53a82c6d67..fe8e83d8101 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-3.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-3.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8::3",
-      "kavlan-11": "2001:660:4406:1a0:208::3",
-      "kavlan-12": "2001:660:4406:2a0:208::3",
-      "kavlan-13": "2001:660:4406:4a0:208::3",
-      "kavlan-14": "2001:660:4406:5a0:208::3",
-      "kavlan-16": "2001:660:4406:7a0:208::3",
-      "kavlan-18": "2001:660:4406:8a0:208::3",
-      "kavlan-2": "2001:660:4406:281:8::3",
-      "kavlan-20": "2001:660:4406:3a0:208::3",
-      "kavlan-21": "2001:660:4406:6a0:208::3",
-      "kavlan-3": "2001:660:4406:282:8::3",
-      "kavlan-4": "2001:660:4406:290:8::3",
-      "kavlan-5": "2001:660:4406:291:8::3",
-      "kavlan-6": "2001:660:4406:292:8::3",
-      "kavlan-7": "2001:660:4406:293:8::3",
-      "kavlan-8": "2001:660:4406:294:8::3",
-      "kavlan-9": "2001:660:4406:295:8::3"
+      "kavlan-1": "2001:660:4406:280:8:0::3",
+      "kavlan-11": "2001:660:4406:1a0:208:0::3",
+      "kavlan-12": "2001:660:4406:2a0:208:0::3",
+      "kavlan-13": "2001:660:4406:4a0:208:0::3",
+      "kavlan-14": "2001:660:4406:5a0:208:0::3",
+      "kavlan-16": "2001:660:4406:7a0:208:0::3",
+      "kavlan-18": "2001:660:4406:8a0:208:0::3",
+      "kavlan-2": "2001:660:4406:281:8:0::3",
+      "kavlan-20": "2001:660:4406:3a0:208:0::3",
+      "kavlan-21": "2001:660:4406:6a0:208:0::3",
+      "kavlan-3": "2001:660:4406:282:8:0::3",
+      "kavlan-4": "2001:660:4406:290:8:0::3",
+      "kavlan-5": "2001:660:4406:291:8:0::3",
+      "kavlan-6": "2001:660:4406:292:8:0::3",
+      "kavlan-7": "2001:660:4406:293:8:0::3",
+      "kavlan-8": "2001:660:4406:294:8:0::3",
+      "kavlan-9": "2001:660:4406:295:8:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:8:1::3",
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.3",
-      "ip6": "2001:660:4406:200:8::3",
+      "ip6": "2001:660:4406:200:8:0::3",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:75:d0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-4.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-4.json
index 5c9daee8b46..525b2dec1db 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-4.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-4.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8::4",
-      "kavlan-11": "2001:660:4406:1a0:208::4",
-      "kavlan-12": "2001:660:4406:2a0:208::4",
-      "kavlan-13": "2001:660:4406:4a0:208::4",
-      "kavlan-14": "2001:660:4406:5a0:208::4",
-      "kavlan-16": "2001:660:4406:7a0:208::4",
-      "kavlan-18": "2001:660:4406:8a0:208::4",
-      "kavlan-2": "2001:660:4406:281:8::4",
-      "kavlan-20": "2001:660:4406:3a0:208::4",
-      "kavlan-21": "2001:660:4406:6a0:208::4",
-      "kavlan-3": "2001:660:4406:282:8::4",
-      "kavlan-4": "2001:660:4406:290:8::4",
-      "kavlan-5": "2001:660:4406:291:8::4",
-      "kavlan-6": "2001:660:4406:292:8::4",
-      "kavlan-7": "2001:660:4406:293:8::4",
-      "kavlan-8": "2001:660:4406:294:8::4",
-      "kavlan-9": "2001:660:4406:295:8::4"
+      "kavlan-1": "2001:660:4406:280:8:0::4",
+      "kavlan-11": "2001:660:4406:1a0:208:0::4",
+      "kavlan-12": "2001:660:4406:2a0:208:0::4",
+      "kavlan-13": "2001:660:4406:4a0:208:0::4",
+      "kavlan-14": "2001:660:4406:5a0:208:0::4",
+      "kavlan-16": "2001:660:4406:7a0:208:0::4",
+      "kavlan-18": "2001:660:4406:8a0:208:0::4",
+      "kavlan-2": "2001:660:4406:281:8:0::4",
+      "kavlan-20": "2001:660:4406:3a0:208:0::4",
+      "kavlan-21": "2001:660:4406:6a0:208:0::4",
+      "kavlan-3": "2001:660:4406:282:8:0::4",
+      "kavlan-4": "2001:660:4406:290:8:0::4",
+      "kavlan-5": "2001:660:4406:291:8:0::4",
+      "kavlan-6": "2001:660:4406:292:8:0::4",
+      "kavlan-7": "2001:660:4406:293:8:0::4",
+      "kavlan-8": "2001:660:4406:294:8:0::4",
+      "kavlan-9": "2001:660:4406:295:8:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:8:1::4",
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.4",
-      "ip6": "2001:660:4406:200:8::4",
+      "ip6": "2001:660:4406:200:8:0::4",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:30",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-5.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-5.json
index d1aafad4a9e..495e7c974e7 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-5.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-5.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8::5",
-      "kavlan-11": "2001:660:4406:1a0:208::5",
-      "kavlan-12": "2001:660:4406:2a0:208::5",
-      "kavlan-13": "2001:660:4406:4a0:208::5",
-      "kavlan-14": "2001:660:4406:5a0:208::5",
-      "kavlan-16": "2001:660:4406:7a0:208::5",
-      "kavlan-18": "2001:660:4406:8a0:208::5",
-      "kavlan-2": "2001:660:4406:281:8::5",
-      "kavlan-20": "2001:660:4406:3a0:208::5",
-      "kavlan-21": "2001:660:4406:6a0:208::5",
-      "kavlan-3": "2001:660:4406:282:8::5",
-      "kavlan-4": "2001:660:4406:290:8::5",
-      "kavlan-5": "2001:660:4406:291:8::5",
-      "kavlan-6": "2001:660:4406:292:8::5",
-      "kavlan-7": "2001:660:4406:293:8::5",
-      "kavlan-8": "2001:660:4406:294:8::5",
-      "kavlan-9": "2001:660:4406:295:8::5"
+      "kavlan-1": "2001:660:4406:280:8:0::5",
+      "kavlan-11": "2001:660:4406:1a0:208:0::5",
+      "kavlan-12": "2001:660:4406:2a0:208:0::5",
+      "kavlan-13": "2001:660:4406:4a0:208:0::5",
+      "kavlan-14": "2001:660:4406:5a0:208:0::5",
+      "kavlan-16": "2001:660:4406:7a0:208:0::5",
+      "kavlan-18": "2001:660:4406:8a0:208:0::5",
+      "kavlan-2": "2001:660:4406:281:8:0::5",
+      "kavlan-20": "2001:660:4406:3a0:208:0::5",
+      "kavlan-21": "2001:660:4406:6a0:208:0::5",
+      "kavlan-3": "2001:660:4406:282:8:0::5",
+      "kavlan-4": "2001:660:4406:290:8:0::5",
+      "kavlan-5": "2001:660:4406:291:8:0::5",
+      "kavlan-6": "2001:660:4406:292:8:0::5",
+      "kavlan-7": "2001:660:4406:293:8:0::5",
+      "kavlan-8": "2001:660:4406:294:8:0::5",
+      "kavlan-9": "2001:660:4406:295:8:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:8:1::5",
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.5",
-      "ip6": "2001:660:4406:200:8::5",
+      "ip6": "2001:660:4406:200:8:0::5",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:6f:e0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-6.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-6.json
index a31cfa97a9b..4d9e5def92d 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-6.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-6.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8::6",
-      "kavlan-11": "2001:660:4406:1a0:208::6",
-      "kavlan-12": "2001:660:4406:2a0:208::6",
-      "kavlan-13": "2001:660:4406:4a0:208::6",
-      "kavlan-14": "2001:660:4406:5a0:208::6",
-      "kavlan-16": "2001:660:4406:7a0:208::6",
-      "kavlan-18": "2001:660:4406:8a0:208::6",
-      "kavlan-2": "2001:660:4406:281:8::6",
-      "kavlan-20": "2001:660:4406:3a0:208::6",
-      "kavlan-21": "2001:660:4406:6a0:208::6",
-      "kavlan-3": "2001:660:4406:282:8::6",
-      "kavlan-4": "2001:660:4406:290:8::6",
-      "kavlan-5": "2001:660:4406:291:8::6",
-      "kavlan-6": "2001:660:4406:292:8::6",
-      "kavlan-7": "2001:660:4406:293:8::6",
-      "kavlan-8": "2001:660:4406:294:8::6",
-      "kavlan-9": "2001:660:4406:295:8::6"
+      "kavlan-1": "2001:660:4406:280:8:0::6",
+      "kavlan-11": "2001:660:4406:1a0:208:0::6",
+      "kavlan-12": "2001:660:4406:2a0:208:0::6",
+      "kavlan-13": "2001:660:4406:4a0:208:0::6",
+      "kavlan-14": "2001:660:4406:5a0:208:0::6",
+      "kavlan-16": "2001:660:4406:7a0:208:0::6",
+      "kavlan-18": "2001:660:4406:8a0:208:0::6",
+      "kavlan-2": "2001:660:4406:281:8:0::6",
+      "kavlan-20": "2001:660:4406:3a0:208:0::6",
+      "kavlan-21": "2001:660:4406:6a0:208:0::6",
+      "kavlan-3": "2001:660:4406:282:8:0::6",
+      "kavlan-4": "2001:660:4406:290:8:0::6",
+      "kavlan-5": "2001:660:4406:291:8:0::6",
+      "kavlan-6": "2001:660:4406:292:8:0::6",
+      "kavlan-7": "2001:660:4406:293:8:0::6",
+      "kavlan-8": "2001:660:4406:294:8:0::6",
+      "kavlan-9": "2001:660:4406:295:8:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:8:1::6",
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.6",
-      "ip6": "2001:660:4406:200:8::6",
+      "ip6": "2001:660:4406:200:8:0::6",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:75:b0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-7.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-7.json
index 8dfffdfaa92..14601a1821c 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-7.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-7.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8::7",
-      "kavlan-11": "2001:660:4406:1a0:208::7",
-      "kavlan-12": "2001:660:4406:2a0:208::7",
-      "kavlan-13": "2001:660:4406:4a0:208::7",
-      "kavlan-14": "2001:660:4406:5a0:208::7",
-      "kavlan-16": "2001:660:4406:7a0:208::7",
-      "kavlan-18": "2001:660:4406:8a0:208::7",
-      "kavlan-2": "2001:660:4406:281:8::7",
-      "kavlan-20": "2001:660:4406:3a0:208::7",
-      "kavlan-21": "2001:660:4406:6a0:208::7",
-      "kavlan-3": "2001:660:4406:282:8::7",
-      "kavlan-4": "2001:660:4406:290:8::7",
-      "kavlan-5": "2001:660:4406:291:8::7",
-      "kavlan-6": "2001:660:4406:292:8::7",
-      "kavlan-7": "2001:660:4406:293:8::7",
-      "kavlan-8": "2001:660:4406:294:8::7",
-      "kavlan-9": "2001:660:4406:295:8::7"
+      "kavlan-1": "2001:660:4406:280:8:0::7",
+      "kavlan-11": "2001:660:4406:1a0:208:0::7",
+      "kavlan-12": "2001:660:4406:2a0:208:0::7",
+      "kavlan-13": "2001:660:4406:4a0:208:0::7",
+      "kavlan-14": "2001:660:4406:5a0:208:0::7",
+      "kavlan-16": "2001:660:4406:7a0:208:0::7",
+      "kavlan-18": "2001:660:4406:8a0:208:0::7",
+      "kavlan-2": "2001:660:4406:281:8:0::7",
+      "kavlan-20": "2001:660:4406:3a0:208:0::7",
+      "kavlan-21": "2001:660:4406:6a0:208:0::7",
+      "kavlan-3": "2001:660:4406:282:8:0::7",
+      "kavlan-4": "2001:660:4406:290:8:0::7",
+      "kavlan-5": "2001:660:4406:291:8:0::7",
+      "kavlan-6": "2001:660:4406:292:8:0::7",
+      "kavlan-7": "2001:660:4406:293:8:0::7",
+      "kavlan-8": "2001:660:4406:294:8:0::7",
+      "kavlan-9": "2001:660:4406:295:8:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:8:1::7",
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.7",
-      "ip6": "2001:660:4406:200:8::7",
+      "ip6": "2001:660:4406:200:8:0::7",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:72:d0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-8.json b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-8.json
index e777bbd0307..85399a89e81 100644
--- a/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-8.json
+++ b/data/grid5000/sites/lille/clusters/chiclet/nodes/chiclet-8.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:8::8",
-      "kavlan-11": "2001:660:4406:1a0:208::8",
-      "kavlan-12": "2001:660:4406:2a0:208::8",
-      "kavlan-13": "2001:660:4406:4a0:208::8",
-      "kavlan-14": "2001:660:4406:5a0:208::8",
-      "kavlan-16": "2001:660:4406:7a0:208::8",
-      "kavlan-18": "2001:660:4406:8a0:208::8",
-      "kavlan-2": "2001:660:4406:281:8::8",
-      "kavlan-20": "2001:660:4406:3a0:208::8",
-      "kavlan-21": "2001:660:4406:6a0:208::8",
-      "kavlan-3": "2001:660:4406:282:8::8",
-      "kavlan-4": "2001:660:4406:290:8::8",
-      "kavlan-5": "2001:660:4406:291:8::8",
-      "kavlan-6": "2001:660:4406:292:8::8",
-      "kavlan-7": "2001:660:4406:293:8::8",
-      "kavlan-8": "2001:660:4406:294:8::8",
-      "kavlan-9": "2001:660:4406:295:8::8"
+      "kavlan-1": "2001:660:4406:280:8:0::8",
+      "kavlan-11": "2001:660:4406:1a0:208:0::8",
+      "kavlan-12": "2001:660:4406:2a0:208:0::8",
+      "kavlan-13": "2001:660:4406:4a0:208:0::8",
+      "kavlan-14": "2001:660:4406:5a0:208:0::8",
+      "kavlan-16": "2001:660:4406:7a0:208:0::8",
+      "kavlan-18": "2001:660:4406:8a0:208:0::8",
+      "kavlan-2": "2001:660:4406:281:8:0::8",
+      "kavlan-20": "2001:660:4406:3a0:208:0::8",
+      "kavlan-21": "2001:660:4406:6a0:208:0::8",
+      "kavlan-3": "2001:660:4406:282:8:0::8",
+      "kavlan-4": "2001:660:4406:290:8:0::8",
+      "kavlan-5": "2001:660:4406:291:8:0::8",
+      "kavlan-6": "2001:660:4406:292:8:0::8",
+      "kavlan-7": "2001:660:4406:293:8:0::8",
+      "kavlan-8": "2001:660:4406:294:8:0::8",
+      "kavlan-9": "2001:660:4406:295:8:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:8:1::8",
@@ -113,7 +113,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.39.8",
-      "ip6": "2001:660:4406:200:8::8",
+      "ip6": "2001:660:4406:200:8:0::8",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:70:60",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json
index 047c7b4e320..ec3e2fa8921 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-1.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7::1",
-      "kavlan-11": "2001:660:4406:1a0:207::1",
-      "kavlan-12": "2001:660:4406:2a0:207::1",
-      "kavlan-13": "2001:660:4406:4a0:207::1",
-      "kavlan-14": "2001:660:4406:5a0:207::1",
-      "kavlan-16": "2001:660:4406:7a0:207::1",
-      "kavlan-18": "2001:660:4406:8a0:207::1",
-      "kavlan-2": "2001:660:4406:281:7::1",
-      "kavlan-20": "2001:660:4406:3a0:207::1",
-      "kavlan-21": "2001:660:4406:6a0:207::1",
-      "kavlan-3": "2001:660:4406:282:7::1",
-      "kavlan-4": "2001:660:4406:290:7::1",
-      "kavlan-5": "2001:660:4406:291:7::1",
-      "kavlan-6": "2001:660:4406:292:7::1",
-      "kavlan-7": "2001:660:4406:293:7::1",
-      "kavlan-8": "2001:660:4406:294:7::1",
-      "kavlan-9": "2001:660:4406:295:7::1"
+      "kavlan-1": "2001:660:4406:280:7:0::1",
+      "kavlan-11": "2001:660:4406:1a0:207:0::1",
+      "kavlan-12": "2001:660:4406:2a0:207:0::1",
+      "kavlan-13": "2001:660:4406:4a0:207:0::1",
+      "kavlan-14": "2001:660:4406:5a0:207:0::1",
+      "kavlan-16": "2001:660:4406:7a0:207:0::1",
+      "kavlan-18": "2001:660:4406:8a0:207:0::1",
+      "kavlan-2": "2001:660:4406:281:7:0::1",
+      "kavlan-20": "2001:660:4406:3a0:207:0::1",
+      "kavlan-21": "2001:660:4406:6a0:207:0::1",
+      "kavlan-3": "2001:660:4406:282:7:0::1",
+      "kavlan-4": "2001:660:4406:290:7:0::1",
+      "kavlan-5": "2001:660:4406:291:7:0::1",
+      "kavlan-6": "2001:660:4406:292:7:0::1",
+      "kavlan-7": "2001:660:4406:293:7:0::1",
+      "kavlan-8": "2001:660:4406:294:7:0::1",
+      "kavlan-9": "2001:660:4406:295:7:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:7:1::1",
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.1",
-      "ip6": "2001:660:4406:200:7::1",
+      "ip6": "2001:660:4406:200:7:0::1",
       "kavlan": true,
       "mac": "24:6e:96:2c:be:e8",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json
index e1818231df8..da5f4b4b4c9 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-2.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7::2",
-      "kavlan-11": "2001:660:4406:1a0:207::2",
-      "kavlan-12": "2001:660:4406:2a0:207::2",
-      "kavlan-13": "2001:660:4406:4a0:207::2",
-      "kavlan-14": "2001:660:4406:5a0:207::2",
-      "kavlan-16": "2001:660:4406:7a0:207::2",
-      "kavlan-18": "2001:660:4406:8a0:207::2",
-      "kavlan-2": "2001:660:4406:281:7::2",
-      "kavlan-20": "2001:660:4406:3a0:207::2",
-      "kavlan-21": "2001:660:4406:6a0:207::2",
-      "kavlan-3": "2001:660:4406:282:7::2",
-      "kavlan-4": "2001:660:4406:290:7::2",
-      "kavlan-5": "2001:660:4406:291:7::2",
-      "kavlan-6": "2001:660:4406:292:7::2",
-      "kavlan-7": "2001:660:4406:293:7::2",
-      "kavlan-8": "2001:660:4406:294:7::2",
-      "kavlan-9": "2001:660:4406:295:7::2"
+      "kavlan-1": "2001:660:4406:280:7:0::2",
+      "kavlan-11": "2001:660:4406:1a0:207:0::2",
+      "kavlan-12": "2001:660:4406:2a0:207:0::2",
+      "kavlan-13": "2001:660:4406:4a0:207:0::2",
+      "kavlan-14": "2001:660:4406:5a0:207:0::2",
+      "kavlan-16": "2001:660:4406:7a0:207:0::2",
+      "kavlan-18": "2001:660:4406:8a0:207:0::2",
+      "kavlan-2": "2001:660:4406:281:7:0::2",
+      "kavlan-20": "2001:660:4406:3a0:207:0::2",
+      "kavlan-21": "2001:660:4406:6a0:207:0::2",
+      "kavlan-3": "2001:660:4406:282:7:0::2",
+      "kavlan-4": "2001:660:4406:290:7:0::2",
+      "kavlan-5": "2001:660:4406:291:7:0::2",
+      "kavlan-6": "2001:660:4406:292:7:0::2",
+      "kavlan-7": "2001:660:4406:293:7:0::2",
+      "kavlan-8": "2001:660:4406:294:7:0::2",
+      "kavlan-9": "2001:660:4406:295:7:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:7:1::2",
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.2",
-      "ip6": "2001:660:4406:200:7::2",
+      "ip6": "2001:660:4406:200:7:0::2",
       "kavlan": true,
       "mac": "24:6e:96:2c:c0:c8",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json
index 43761aeae3e..fbc876ee668 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-3.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7::3",
-      "kavlan-11": "2001:660:4406:1a0:207::3",
-      "kavlan-12": "2001:660:4406:2a0:207::3",
-      "kavlan-13": "2001:660:4406:4a0:207::3",
-      "kavlan-14": "2001:660:4406:5a0:207::3",
-      "kavlan-16": "2001:660:4406:7a0:207::3",
-      "kavlan-18": "2001:660:4406:8a0:207::3",
-      "kavlan-2": "2001:660:4406:281:7::3",
-      "kavlan-20": "2001:660:4406:3a0:207::3",
-      "kavlan-21": "2001:660:4406:6a0:207::3",
-      "kavlan-3": "2001:660:4406:282:7::3",
-      "kavlan-4": "2001:660:4406:290:7::3",
-      "kavlan-5": "2001:660:4406:291:7::3",
-      "kavlan-6": "2001:660:4406:292:7::3",
-      "kavlan-7": "2001:660:4406:293:7::3",
-      "kavlan-8": "2001:660:4406:294:7::3",
-      "kavlan-9": "2001:660:4406:295:7::3"
+      "kavlan-1": "2001:660:4406:280:7:0::3",
+      "kavlan-11": "2001:660:4406:1a0:207:0::3",
+      "kavlan-12": "2001:660:4406:2a0:207:0::3",
+      "kavlan-13": "2001:660:4406:4a0:207:0::3",
+      "kavlan-14": "2001:660:4406:5a0:207:0::3",
+      "kavlan-16": "2001:660:4406:7a0:207:0::3",
+      "kavlan-18": "2001:660:4406:8a0:207:0::3",
+      "kavlan-2": "2001:660:4406:281:7:0::3",
+      "kavlan-20": "2001:660:4406:3a0:207:0::3",
+      "kavlan-21": "2001:660:4406:6a0:207:0::3",
+      "kavlan-3": "2001:660:4406:282:7:0::3",
+      "kavlan-4": "2001:660:4406:290:7:0::3",
+      "kavlan-5": "2001:660:4406:291:7:0::3",
+      "kavlan-6": "2001:660:4406:292:7:0::3",
+      "kavlan-7": "2001:660:4406:293:7:0::3",
+      "kavlan-8": "2001:660:4406:294:7:0::3",
+      "kavlan-9": "2001:660:4406:295:7:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:7:1::3",
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.3",
-      "ip6": "2001:660:4406:200:7::3",
+      "ip6": "2001:660:4406:200:7:0::3",
       "kavlan": true,
       "mac": "24:6e:96:2c:bd:10",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json
index 9c018b6da3c..886e5f2b9e1 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-4.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7::4",
-      "kavlan-11": "2001:660:4406:1a0:207::4",
-      "kavlan-12": "2001:660:4406:2a0:207::4",
-      "kavlan-13": "2001:660:4406:4a0:207::4",
-      "kavlan-14": "2001:660:4406:5a0:207::4",
-      "kavlan-16": "2001:660:4406:7a0:207::4",
-      "kavlan-18": "2001:660:4406:8a0:207::4",
-      "kavlan-2": "2001:660:4406:281:7::4",
-      "kavlan-20": "2001:660:4406:3a0:207::4",
-      "kavlan-21": "2001:660:4406:6a0:207::4",
-      "kavlan-3": "2001:660:4406:282:7::4",
-      "kavlan-4": "2001:660:4406:290:7::4",
-      "kavlan-5": "2001:660:4406:291:7::4",
-      "kavlan-6": "2001:660:4406:292:7::4",
-      "kavlan-7": "2001:660:4406:293:7::4",
-      "kavlan-8": "2001:660:4406:294:7::4",
-      "kavlan-9": "2001:660:4406:295:7::4"
+      "kavlan-1": "2001:660:4406:280:7:0::4",
+      "kavlan-11": "2001:660:4406:1a0:207:0::4",
+      "kavlan-12": "2001:660:4406:2a0:207:0::4",
+      "kavlan-13": "2001:660:4406:4a0:207:0::4",
+      "kavlan-14": "2001:660:4406:5a0:207:0::4",
+      "kavlan-16": "2001:660:4406:7a0:207:0::4",
+      "kavlan-18": "2001:660:4406:8a0:207:0::4",
+      "kavlan-2": "2001:660:4406:281:7:0::4",
+      "kavlan-20": "2001:660:4406:3a0:207:0::4",
+      "kavlan-21": "2001:660:4406:6a0:207:0::4",
+      "kavlan-3": "2001:660:4406:282:7:0::4",
+      "kavlan-4": "2001:660:4406:290:7:0::4",
+      "kavlan-5": "2001:660:4406:291:7:0::4",
+      "kavlan-6": "2001:660:4406:292:7:0::4",
+      "kavlan-7": "2001:660:4406:293:7:0::4",
+      "kavlan-8": "2001:660:4406:294:7:0::4",
+      "kavlan-9": "2001:660:4406:295:7:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:7:1::4",
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.4",
-      "ip6": "2001:660:4406:200:7::4",
+      "ip6": "2001:660:4406:200:7:0::4",
       "kavlan": true,
       "mac": "24:6e:96:2c:ba:c0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json
index e03990cf0f1..cc19db4301d 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-5.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7::5",
-      "kavlan-11": "2001:660:4406:1a0:207::5",
-      "kavlan-12": "2001:660:4406:2a0:207::5",
-      "kavlan-13": "2001:660:4406:4a0:207::5",
-      "kavlan-14": "2001:660:4406:5a0:207::5",
-      "kavlan-16": "2001:660:4406:7a0:207::5",
-      "kavlan-18": "2001:660:4406:8a0:207::5",
-      "kavlan-2": "2001:660:4406:281:7::5",
-      "kavlan-20": "2001:660:4406:3a0:207::5",
-      "kavlan-21": "2001:660:4406:6a0:207::5",
-      "kavlan-3": "2001:660:4406:282:7::5",
-      "kavlan-4": "2001:660:4406:290:7::5",
-      "kavlan-5": "2001:660:4406:291:7::5",
-      "kavlan-6": "2001:660:4406:292:7::5",
-      "kavlan-7": "2001:660:4406:293:7::5",
-      "kavlan-8": "2001:660:4406:294:7::5",
-      "kavlan-9": "2001:660:4406:295:7::5"
+      "kavlan-1": "2001:660:4406:280:7:0::5",
+      "kavlan-11": "2001:660:4406:1a0:207:0::5",
+      "kavlan-12": "2001:660:4406:2a0:207:0::5",
+      "kavlan-13": "2001:660:4406:4a0:207:0::5",
+      "kavlan-14": "2001:660:4406:5a0:207:0::5",
+      "kavlan-16": "2001:660:4406:7a0:207:0::5",
+      "kavlan-18": "2001:660:4406:8a0:207:0::5",
+      "kavlan-2": "2001:660:4406:281:7:0::5",
+      "kavlan-20": "2001:660:4406:3a0:207:0::5",
+      "kavlan-21": "2001:660:4406:6a0:207:0::5",
+      "kavlan-3": "2001:660:4406:282:7:0::5",
+      "kavlan-4": "2001:660:4406:290:7:0::5",
+      "kavlan-5": "2001:660:4406:291:7:0::5",
+      "kavlan-6": "2001:660:4406:292:7:0::5",
+      "kavlan-7": "2001:660:4406:293:7:0::5",
+      "kavlan-8": "2001:660:4406:294:7:0::5",
+      "kavlan-9": "2001:660:4406:295:7:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:7:1::5",
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.5",
-      "ip6": "2001:660:4406:200:7::5",
+      "ip6": "2001:660:4406:200:7:0::5",
       "kavlan": true,
       "mac": "24:6e:96:2c:c1:58",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json
index 2f24fcbbcca..599c2613be3 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-6.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7::6",
-      "kavlan-11": "2001:660:4406:1a0:207::6",
-      "kavlan-12": "2001:660:4406:2a0:207::6",
-      "kavlan-13": "2001:660:4406:4a0:207::6",
-      "kavlan-14": "2001:660:4406:5a0:207::6",
-      "kavlan-16": "2001:660:4406:7a0:207::6",
-      "kavlan-18": "2001:660:4406:8a0:207::6",
-      "kavlan-2": "2001:660:4406:281:7::6",
-      "kavlan-20": "2001:660:4406:3a0:207::6",
-      "kavlan-21": "2001:660:4406:6a0:207::6",
-      "kavlan-3": "2001:660:4406:282:7::6",
-      "kavlan-4": "2001:660:4406:290:7::6",
-      "kavlan-5": "2001:660:4406:291:7::6",
-      "kavlan-6": "2001:660:4406:292:7::6",
-      "kavlan-7": "2001:660:4406:293:7::6",
-      "kavlan-8": "2001:660:4406:294:7::6",
-      "kavlan-9": "2001:660:4406:295:7::6"
+      "kavlan-1": "2001:660:4406:280:7:0::6",
+      "kavlan-11": "2001:660:4406:1a0:207:0::6",
+      "kavlan-12": "2001:660:4406:2a0:207:0::6",
+      "kavlan-13": "2001:660:4406:4a0:207:0::6",
+      "kavlan-14": "2001:660:4406:5a0:207:0::6",
+      "kavlan-16": "2001:660:4406:7a0:207:0::6",
+      "kavlan-18": "2001:660:4406:8a0:207:0::6",
+      "kavlan-2": "2001:660:4406:281:7:0::6",
+      "kavlan-20": "2001:660:4406:3a0:207:0::6",
+      "kavlan-21": "2001:660:4406:6a0:207:0::6",
+      "kavlan-3": "2001:660:4406:282:7:0::6",
+      "kavlan-4": "2001:660:4406:290:7:0::6",
+      "kavlan-5": "2001:660:4406:291:7:0::6",
+      "kavlan-6": "2001:660:4406:292:7:0::6",
+      "kavlan-7": "2001:660:4406:293:7:0::6",
+      "kavlan-8": "2001:660:4406:294:7:0::6",
+      "kavlan-9": "2001:660:4406:295:7:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:7:1::6",
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.6",
-      "ip6": "2001:660:4406:200:7::6",
+      "ip6": "2001:660:4406:200:7:0::6",
       "kavlan": true,
       "mac": "24:6e:96:2c:0b:e8",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json
index 06d9a909d0d..71ad7d9cec9 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-7.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7::7",
-      "kavlan-11": "2001:660:4406:1a0:207::7",
-      "kavlan-12": "2001:660:4406:2a0:207::7",
-      "kavlan-13": "2001:660:4406:4a0:207::7",
-      "kavlan-14": "2001:660:4406:5a0:207::7",
-      "kavlan-16": "2001:660:4406:7a0:207::7",
-      "kavlan-18": "2001:660:4406:8a0:207::7",
-      "kavlan-2": "2001:660:4406:281:7::7",
-      "kavlan-20": "2001:660:4406:3a0:207::7",
-      "kavlan-21": "2001:660:4406:6a0:207::7",
-      "kavlan-3": "2001:660:4406:282:7::7",
-      "kavlan-4": "2001:660:4406:290:7::7",
-      "kavlan-5": "2001:660:4406:291:7::7",
-      "kavlan-6": "2001:660:4406:292:7::7",
-      "kavlan-7": "2001:660:4406:293:7::7",
-      "kavlan-8": "2001:660:4406:294:7::7",
-      "kavlan-9": "2001:660:4406:295:7::7"
+      "kavlan-1": "2001:660:4406:280:7:0::7",
+      "kavlan-11": "2001:660:4406:1a0:207:0::7",
+      "kavlan-12": "2001:660:4406:2a0:207:0::7",
+      "kavlan-13": "2001:660:4406:4a0:207:0::7",
+      "kavlan-14": "2001:660:4406:5a0:207:0::7",
+      "kavlan-16": "2001:660:4406:7a0:207:0::7",
+      "kavlan-18": "2001:660:4406:8a0:207:0::7",
+      "kavlan-2": "2001:660:4406:281:7:0::7",
+      "kavlan-20": "2001:660:4406:3a0:207:0::7",
+      "kavlan-21": "2001:660:4406:6a0:207:0::7",
+      "kavlan-3": "2001:660:4406:282:7:0::7",
+      "kavlan-4": "2001:660:4406:290:7:0::7",
+      "kavlan-5": "2001:660:4406:291:7:0::7",
+      "kavlan-6": "2001:660:4406:292:7:0::7",
+      "kavlan-7": "2001:660:4406:293:7:0::7",
+      "kavlan-8": "2001:660:4406:294:7:0::7",
+      "kavlan-9": "2001:660:4406:295:7:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:7:1::7",
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.7",
-      "ip6": "2001:660:4406:200:7::7",
+      "ip6": "2001:660:4406:200:7:0::7",
       "kavlan": true,
       "mac": "24:6e:96:2c:ba:b8",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json
index 13a6673b187..7dde20792a8 100644
--- a/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json
+++ b/data/grid5000/sites/lille/clusters/chifflet/nodes/chifflet-8.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:7::8",
-      "kavlan-11": "2001:660:4406:1a0:207::8",
-      "kavlan-12": "2001:660:4406:2a0:207::8",
-      "kavlan-13": "2001:660:4406:4a0:207::8",
-      "kavlan-14": "2001:660:4406:5a0:207::8",
-      "kavlan-16": "2001:660:4406:7a0:207::8",
-      "kavlan-18": "2001:660:4406:8a0:207::8",
-      "kavlan-2": "2001:660:4406:281:7::8",
-      "kavlan-20": "2001:660:4406:3a0:207::8",
-      "kavlan-21": "2001:660:4406:6a0:207::8",
-      "kavlan-3": "2001:660:4406:282:7::8",
-      "kavlan-4": "2001:660:4406:290:7::8",
-      "kavlan-5": "2001:660:4406:291:7::8",
-      "kavlan-6": "2001:660:4406:292:7::8",
-      "kavlan-7": "2001:660:4406:293:7::8",
-      "kavlan-8": "2001:660:4406:294:7::8",
-      "kavlan-9": "2001:660:4406:295:7::8"
+      "kavlan-1": "2001:660:4406:280:7:0::8",
+      "kavlan-11": "2001:660:4406:1a0:207:0::8",
+      "kavlan-12": "2001:660:4406:2a0:207:0::8",
+      "kavlan-13": "2001:660:4406:4a0:207:0::8",
+      "kavlan-14": "2001:660:4406:5a0:207:0::8",
+      "kavlan-16": "2001:660:4406:7a0:207:0::8",
+      "kavlan-18": "2001:660:4406:8a0:207:0::8",
+      "kavlan-2": "2001:660:4406:281:7:0::8",
+      "kavlan-20": "2001:660:4406:3a0:207:0::8",
+      "kavlan-21": "2001:660:4406:6a0:207:0::8",
+      "kavlan-3": "2001:660:4406:282:7:0::8",
+      "kavlan-4": "2001:660:4406:290:7:0::8",
+      "kavlan-5": "2001:660:4406:291:7:0::8",
+      "kavlan-6": "2001:660:4406:292:7:0::8",
+      "kavlan-7": "2001:660:4406:293:7:0::8",
+      "kavlan-8": "2001:660:4406:294:7:0::8",
+      "kavlan-9": "2001:660:4406:295:7:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:7:1::8",
@@ -133,7 +133,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.38.8",
-      "ip6": "2001:660:4406:200:7::8",
+      "ip6": "2001:660:4406:200:7:0::8",
       "kavlan": true,
       "mac": "24:6e:96:2c:bd:80",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-1.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-1.json
index 83a943d42be..aaa32c3ca9d 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-1.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-1.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5::1",
-      "kavlan-11": "2001:660:4406:1a0:205::1",
-      "kavlan-12": "2001:660:4406:2a0:205::1",
-      "kavlan-13": "2001:660:4406:4a0:205::1",
-      "kavlan-14": "2001:660:4406:5a0:205::1",
-      "kavlan-16": "2001:660:4406:7a0:205::1",
-      "kavlan-18": "2001:660:4406:8a0:205::1",
-      "kavlan-2": "2001:660:4406:281:5::1",
-      "kavlan-20": "2001:660:4406:3a0:205::1",
-      "kavlan-21": "2001:660:4406:6a0:205::1",
-      "kavlan-3": "2001:660:4406:282:5::1",
-      "kavlan-4": "2001:660:4406:290:5::1",
-      "kavlan-5": "2001:660:4406:291:5::1",
-      "kavlan-6": "2001:660:4406:292:5::1",
-      "kavlan-7": "2001:660:4406:293:5::1",
-      "kavlan-8": "2001:660:4406:294:5::1",
-      "kavlan-9": "2001:660:4406:295:5::1"
+      "kavlan-1": "2001:660:4406:280:5:0::1",
+      "kavlan-11": "2001:660:4406:1a0:205:0::1",
+      "kavlan-12": "2001:660:4406:2a0:205:0::1",
+      "kavlan-13": "2001:660:4406:4a0:205:0::1",
+      "kavlan-14": "2001:660:4406:5a0:205:0::1",
+      "kavlan-16": "2001:660:4406:7a0:205:0::1",
+      "kavlan-18": "2001:660:4406:8a0:205:0::1",
+      "kavlan-2": "2001:660:4406:281:5:0::1",
+      "kavlan-20": "2001:660:4406:3a0:205:0::1",
+      "kavlan-21": "2001:660:4406:6a0:205:0::1",
+      "kavlan-3": "2001:660:4406:282:5:0::1",
+      "kavlan-4": "2001:660:4406:290:5:0::1",
+      "kavlan-5": "2001:660:4406:291:5:0::1",
+      "kavlan-6": "2001:660:4406:292:5:0::1",
+      "kavlan-7": "2001:660:4406:293:5:0::1",
+      "kavlan-8": "2001:660:4406:294:5:0::1",
+      "kavlan-9": "2001:660:4406:295:5:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:5:1::1",
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.1",
-      "ip6": "2001:660:4406:200:5::1",
+      "ip6": "2001:660:4406:200:5:0::1",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:60:30",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-2.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-2.json
index 3b100d364b1..6200afd1a62 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-2.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-2.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5::2",
-      "kavlan-11": "2001:660:4406:1a0:205::2",
-      "kavlan-12": "2001:660:4406:2a0:205::2",
-      "kavlan-13": "2001:660:4406:4a0:205::2",
-      "kavlan-14": "2001:660:4406:5a0:205::2",
-      "kavlan-16": "2001:660:4406:7a0:205::2",
-      "kavlan-18": "2001:660:4406:8a0:205::2",
-      "kavlan-2": "2001:660:4406:281:5::2",
-      "kavlan-20": "2001:660:4406:3a0:205::2",
-      "kavlan-21": "2001:660:4406:6a0:205::2",
-      "kavlan-3": "2001:660:4406:282:5::2",
-      "kavlan-4": "2001:660:4406:290:5::2",
-      "kavlan-5": "2001:660:4406:291:5::2",
-      "kavlan-6": "2001:660:4406:292:5::2",
-      "kavlan-7": "2001:660:4406:293:5::2",
-      "kavlan-8": "2001:660:4406:294:5::2",
-      "kavlan-9": "2001:660:4406:295:5::2"
+      "kavlan-1": "2001:660:4406:280:5:0::2",
+      "kavlan-11": "2001:660:4406:1a0:205:0::2",
+      "kavlan-12": "2001:660:4406:2a0:205:0::2",
+      "kavlan-13": "2001:660:4406:4a0:205:0::2",
+      "kavlan-14": "2001:660:4406:5a0:205:0::2",
+      "kavlan-16": "2001:660:4406:7a0:205:0::2",
+      "kavlan-18": "2001:660:4406:8a0:205:0::2",
+      "kavlan-2": "2001:660:4406:281:5:0::2",
+      "kavlan-20": "2001:660:4406:3a0:205:0::2",
+      "kavlan-21": "2001:660:4406:6a0:205:0::2",
+      "kavlan-3": "2001:660:4406:282:5:0::2",
+      "kavlan-4": "2001:660:4406:290:5:0::2",
+      "kavlan-5": "2001:660:4406:291:5:0::2",
+      "kavlan-6": "2001:660:4406:292:5:0::2",
+      "kavlan-7": "2001:660:4406:293:5:0::2",
+      "kavlan-8": "2001:660:4406:294:5:0::2",
+      "kavlan-9": "2001:660:4406:295:5:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:5:1::2",
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.2",
-      "ip6": "2001:660:4406:200:5::2",
+      "ip6": "2001:660:4406:200:5:0::2",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:69:d0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-3.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-3.json
index 2ca07a9a2d0..296320301a5 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-3.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-3.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5::3",
-      "kavlan-11": "2001:660:4406:1a0:205::3",
-      "kavlan-12": "2001:660:4406:2a0:205::3",
-      "kavlan-13": "2001:660:4406:4a0:205::3",
-      "kavlan-14": "2001:660:4406:5a0:205::3",
-      "kavlan-16": "2001:660:4406:7a0:205::3",
-      "kavlan-18": "2001:660:4406:8a0:205::3",
-      "kavlan-2": "2001:660:4406:281:5::3",
-      "kavlan-20": "2001:660:4406:3a0:205::3",
-      "kavlan-21": "2001:660:4406:6a0:205::3",
-      "kavlan-3": "2001:660:4406:282:5::3",
-      "kavlan-4": "2001:660:4406:290:5::3",
-      "kavlan-5": "2001:660:4406:291:5::3",
-      "kavlan-6": "2001:660:4406:292:5::3",
-      "kavlan-7": "2001:660:4406:293:5::3",
-      "kavlan-8": "2001:660:4406:294:5::3",
-      "kavlan-9": "2001:660:4406:295:5::3"
+      "kavlan-1": "2001:660:4406:280:5:0::3",
+      "kavlan-11": "2001:660:4406:1a0:205:0::3",
+      "kavlan-12": "2001:660:4406:2a0:205:0::3",
+      "kavlan-13": "2001:660:4406:4a0:205:0::3",
+      "kavlan-14": "2001:660:4406:5a0:205:0::3",
+      "kavlan-16": "2001:660:4406:7a0:205:0::3",
+      "kavlan-18": "2001:660:4406:8a0:205:0::3",
+      "kavlan-2": "2001:660:4406:281:5:0::3",
+      "kavlan-20": "2001:660:4406:3a0:205:0::3",
+      "kavlan-21": "2001:660:4406:6a0:205:0::3",
+      "kavlan-3": "2001:660:4406:282:5:0::3",
+      "kavlan-4": "2001:660:4406:290:5:0::3",
+      "kavlan-5": "2001:660:4406:291:5:0::3",
+      "kavlan-6": "2001:660:4406:292:5:0::3",
+      "kavlan-7": "2001:660:4406:293:5:0::3",
+      "kavlan-8": "2001:660:4406:294:5:0::3",
+      "kavlan-9": "2001:660:4406:295:5:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:5:1::3",
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.3",
-      "ip6": "2001:660:4406:200:5::3",
+      "ip6": "2001:660:4406:200:5:0::3",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:63:f0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-4.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-4.json
index 631cd7727eb..a579907e641 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-4.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-4.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5::4",
-      "kavlan-11": "2001:660:4406:1a0:205::4",
-      "kavlan-12": "2001:660:4406:2a0:205::4",
-      "kavlan-13": "2001:660:4406:4a0:205::4",
-      "kavlan-14": "2001:660:4406:5a0:205::4",
-      "kavlan-16": "2001:660:4406:7a0:205::4",
-      "kavlan-18": "2001:660:4406:8a0:205::4",
-      "kavlan-2": "2001:660:4406:281:5::4",
-      "kavlan-20": "2001:660:4406:3a0:205::4",
-      "kavlan-21": "2001:660:4406:6a0:205::4",
-      "kavlan-3": "2001:660:4406:282:5::4",
-      "kavlan-4": "2001:660:4406:290:5::4",
-      "kavlan-5": "2001:660:4406:291:5::4",
-      "kavlan-6": "2001:660:4406:292:5::4",
-      "kavlan-7": "2001:660:4406:293:5::4",
-      "kavlan-8": "2001:660:4406:294:5::4",
-      "kavlan-9": "2001:660:4406:295:5::4"
+      "kavlan-1": "2001:660:4406:280:5:0::4",
+      "kavlan-11": "2001:660:4406:1a0:205:0::4",
+      "kavlan-12": "2001:660:4406:2a0:205:0::4",
+      "kavlan-13": "2001:660:4406:4a0:205:0::4",
+      "kavlan-14": "2001:660:4406:5a0:205:0::4",
+      "kavlan-16": "2001:660:4406:7a0:205:0::4",
+      "kavlan-18": "2001:660:4406:8a0:205:0::4",
+      "kavlan-2": "2001:660:4406:281:5:0::4",
+      "kavlan-20": "2001:660:4406:3a0:205:0::4",
+      "kavlan-21": "2001:660:4406:6a0:205:0::4",
+      "kavlan-3": "2001:660:4406:282:5:0::4",
+      "kavlan-4": "2001:660:4406:290:5:0::4",
+      "kavlan-5": "2001:660:4406:291:5:0::4",
+      "kavlan-6": "2001:660:4406:292:5:0::4",
+      "kavlan-7": "2001:660:4406:293:5:0::4",
+      "kavlan-8": "2001:660:4406:294:5:0::4",
+      "kavlan-9": "2001:660:4406:295:5:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:5:1::4",
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.4",
-      "ip6": "2001:660:4406:200:5::4",
+      "ip6": "2001:660:4406:200:5:0::4",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:60:10",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-5.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-5.json
index 42b02a904c5..fafba13c783 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-5.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-5.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5::5",
-      "kavlan-11": "2001:660:4406:1a0:205::5",
-      "kavlan-12": "2001:660:4406:2a0:205::5",
-      "kavlan-13": "2001:660:4406:4a0:205::5",
-      "kavlan-14": "2001:660:4406:5a0:205::5",
-      "kavlan-16": "2001:660:4406:7a0:205::5",
-      "kavlan-18": "2001:660:4406:8a0:205::5",
-      "kavlan-2": "2001:660:4406:281:5::5",
-      "kavlan-20": "2001:660:4406:3a0:205::5",
-      "kavlan-21": "2001:660:4406:6a0:205::5",
-      "kavlan-3": "2001:660:4406:282:5::5",
-      "kavlan-4": "2001:660:4406:290:5::5",
-      "kavlan-5": "2001:660:4406:291:5::5",
-      "kavlan-6": "2001:660:4406:292:5::5",
-      "kavlan-7": "2001:660:4406:293:5::5",
-      "kavlan-8": "2001:660:4406:294:5::5",
-      "kavlan-9": "2001:660:4406:295:5::5"
+      "kavlan-1": "2001:660:4406:280:5:0::5",
+      "kavlan-11": "2001:660:4406:1a0:205:0::5",
+      "kavlan-12": "2001:660:4406:2a0:205:0::5",
+      "kavlan-13": "2001:660:4406:4a0:205:0::5",
+      "kavlan-14": "2001:660:4406:5a0:205:0::5",
+      "kavlan-16": "2001:660:4406:7a0:205:0::5",
+      "kavlan-18": "2001:660:4406:8a0:205:0::5",
+      "kavlan-2": "2001:660:4406:281:5:0::5",
+      "kavlan-20": "2001:660:4406:3a0:205:0::5",
+      "kavlan-21": "2001:660:4406:6a0:205:0::5",
+      "kavlan-3": "2001:660:4406:282:5:0::5",
+      "kavlan-4": "2001:660:4406:290:5:0::5",
+      "kavlan-5": "2001:660:4406:291:5:0::5",
+      "kavlan-6": "2001:660:4406:292:5:0::5",
+      "kavlan-7": "2001:660:4406:293:5:0::5",
+      "kavlan-8": "2001:660:4406:294:5:0::5",
+      "kavlan-9": "2001:660:4406:295:5:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:5:1::5",
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.5",
-      "ip6": "2001:660:4406:200:5::5",
+      "ip6": "2001:660:4406:200:5:0::5",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:5f:50",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-6.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-6.json
index ddc7989b8fd..e6523f459f2 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-6.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-6.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5::6",
-      "kavlan-11": "2001:660:4406:1a0:205::6",
-      "kavlan-12": "2001:660:4406:2a0:205::6",
-      "kavlan-13": "2001:660:4406:4a0:205::6",
-      "kavlan-14": "2001:660:4406:5a0:205::6",
-      "kavlan-16": "2001:660:4406:7a0:205::6",
-      "kavlan-18": "2001:660:4406:8a0:205::6",
-      "kavlan-2": "2001:660:4406:281:5::6",
-      "kavlan-20": "2001:660:4406:3a0:205::6",
-      "kavlan-21": "2001:660:4406:6a0:205::6",
-      "kavlan-3": "2001:660:4406:282:5::6",
-      "kavlan-4": "2001:660:4406:290:5::6",
-      "kavlan-5": "2001:660:4406:291:5::6",
-      "kavlan-6": "2001:660:4406:292:5::6",
-      "kavlan-7": "2001:660:4406:293:5::6",
-      "kavlan-8": "2001:660:4406:294:5::6",
-      "kavlan-9": "2001:660:4406:295:5::6"
+      "kavlan-1": "2001:660:4406:280:5:0::6",
+      "kavlan-11": "2001:660:4406:1a0:205:0::6",
+      "kavlan-12": "2001:660:4406:2a0:205:0::6",
+      "kavlan-13": "2001:660:4406:4a0:205:0::6",
+      "kavlan-14": "2001:660:4406:5a0:205:0::6",
+      "kavlan-16": "2001:660:4406:7a0:205:0::6",
+      "kavlan-18": "2001:660:4406:8a0:205:0::6",
+      "kavlan-2": "2001:660:4406:281:5:0::6",
+      "kavlan-20": "2001:660:4406:3a0:205:0::6",
+      "kavlan-21": "2001:660:4406:6a0:205:0::6",
+      "kavlan-3": "2001:660:4406:282:5:0::6",
+      "kavlan-4": "2001:660:4406:290:5:0::6",
+      "kavlan-5": "2001:660:4406:291:5:0::6",
+      "kavlan-6": "2001:660:4406:292:5:0::6",
+      "kavlan-7": "2001:660:4406:293:5:0::6",
+      "kavlan-8": "2001:660:4406:294:5:0::6",
+      "kavlan-9": "2001:660:4406:295:5:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:5:1::6",
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.6",
-      "ip6": "2001:660:4406:200:5::6",
+      "ip6": "2001:660:4406:200:5:0::6",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:65:a0",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-7.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-7.json
index dc9057a7d38..8123443c526 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-7.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-7.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5::7",
-      "kavlan-11": "2001:660:4406:1a0:205::7",
-      "kavlan-12": "2001:660:4406:2a0:205::7",
-      "kavlan-13": "2001:660:4406:4a0:205::7",
-      "kavlan-14": "2001:660:4406:5a0:205::7",
-      "kavlan-16": "2001:660:4406:7a0:205::7",
-      "kavlan-18": "2001:660:4406:8a0:205::7",
-      "kavlan-2": "2001:660:4406:281:5::7",
-      "kavlan-20": "2001:660:4406:3a0:205::7",
-      "kavlan-21": "2001:660:4406:6a0:205::7",
-      "kavlan-3": "2001:660:4406:282:5::7",
-      "kavlan-4": "2001:660:4406:290:5::7",
-      "kavlan-5": "2001:660:4406:291:5::7",
-      "kavlan-6": "2001:660:4406:292:5::7",
-      "kavlan-7": "2001:660:4406:293:5::7",
-      "kavlan-8": "2001:660:4406:294:5::7",
-      "kavlan-9": "2001:660:4406:295:5::7"
+      "kavlan-1": "2001:660:4406:280:5:0::7",
+      "kavlan-11": "2001:660:4406:1a0:205:0::7",
+      "kavlan-12": "2001:660:4406:2a0:205:0::7",
+      "kavlan-13": "2001:660:4406:4a0:205:0::7",
+      "kavlan-14": "2001:660:4406:5a0:205:0::7",
+      "kavlan-16": "2001:660:4406:7a0:205:0::7",
+      "kavlan-18": "2001:660:4406:8a0:205:0::7",
+      "kavlan-2": "2001:660:4406:281:5:0::7",
+      "kavlan-20": "2001:660:4406:3a0:205:0::7",
+      "kavlan-21": "2001:660:4406:6a0:205:0::7",
+      "kavlan-3": "2001:660:4406:282:5:0::7",
+      "kavlan-4": "2001:660:4406:290:5:0::7",
+      "kavlan-5": "2001:660:4406:291:5:0::7",
+      "kavlan-6": "2001:660:4406:292:5:0::7",
+      "kavlan-7": "2001:660:4406:293:5:0::7",
+      "kavlan-8": "2001:660:4406:294:5:0::7",
+      "kavlan-9": "2001:660:4406:295:5:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:5:1::7",
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.7",
-      "ip6": "2001:660:4406:200:5::7",
+      "ip6": "2001:660:4406:200:5:0::7",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:70:90",
       "management": false,
diff --git a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-8.json b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-8.json
index 64f814639a0..79f06096a6a 100644
--- a/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-8.json
+++ b/data/grid5000/sites/lille/clusters/chifflot/nodes/chifflot-8.json
@@ -80,23 +80,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:280:5::8",
-      "kavlan-11": "2001:660:4406:1a0:205::8",
-      "kavlan-12": "2001:660:4406:2a0:205::8",
-      "kavlan-13": "2001:660:4406:4a0:205::8",
-      "kavlan-14": "2001:660:4406:5a0:205::8",
-      "kavlan-16": "2001:660:4406:7a0:205::8",
-      "kavlan-18": "2001:660:4406:8a0:205::8",
-      "kavlan-2": "2001:660:4406:281:5::8",
-      "kavlan-20": "2001:660:4406:3a0:205::8",
-      "kavlan-21": "2001:660:4406:6a0:205::8",
-      "kavlan-3": "2001:660:4406:282:5::8",
-      "kavlan-4": "2001:660:4406:290:5::8",
-      "kavlan-5": "2001:660:4406:291:5::8",
-      "kavlan-6": "2001:660:4406:292:5::8",
-      "kavlan-7": "2001:660:4406:293:5::8",
-      "kavlan-8": "2001:660:4406:294:5::8",
-      "kavlan-9": "2001:660:4406:295:5::8"
+      "kavlan-1": "2001:660:4406:280:5:0::8",
+      "kavlan-11": "2001:660:4406:1a0:205:0::8",
+      "kavlan-12": "2001:660:4406:2a0:205:0::8",
+      "kavlan-13": "2001:660:4406:4a0:205:0::8",
+      "kavlan-14": "2001:660:4406:5a0:205:0::8",
+      "kavlan-16": "2001:660:4406:7a0:205:0::8",
+      "kavlan-18": "2001:660:4406:8a0:205:0::8",
+      "kavlan-2": "2001:660:4406:281:5:0::8",
+      "kavlan-20": "2001:660:4406:3a0:205:0::8",
+      "kavlan-21": "2001:660:4406:6a0:205:0::8",
+      "kavlan-3": "2001:660:4406:282:5:0::8",
+      "kavlan-4": "2001:660:4406:290:5:0::8",
+      "kavlan-5": "2001:660:4406:291:5:0::8",
+      "kavlan-6": "2001:660:4406:292:5:0::8",
+      "kavlan-7": "2001:660:4406:293:5:0::8",
+      "kavlan-8": "2001:660:4406:294:5:0::8",
+      "kavlan-9": "2001:660:4406:295:5:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:280:5:1::8",
@@ -133,7 +133,7 @@
       "firmware_version": "7.10 0x800051ac 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.36.8",
-      "ip6": "2001:660:4406:200:5::8",
+      "ip6": "2001:660:4406:200:5:0::8",
       "kavlan": true,
       "mac": "3c:fd:fe:c1:64:20",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-1.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-1.json
index 8314c9225b0..8f6fb45926a 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-1.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-1.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::1",
-      "kavlan-11": "2001:660:4406:1a0:302::1",
-      "kavlan-12": "2001:660:4406:2a0:302::1",
-      "kavlan-13": "2001:660:4406:4a0:302::1",
-      "kavlan-14": "2001:660:4406:5a0:302::1",
-      "kavlan-16": "2001:660:4406:7a0:302::1",
-      "kavlan-18": "2001:660:4406:8a0:302::1",
-      "kavlan-2": "2001:660:4406:381:2::1",
-      "kavlan-20": "2001:660:4406:3a0:302::1",
-      "kavlan-21": "2001:660:4406:6a0:302::1",
-      "kavlan-3": "2001:660:4406:382:2::1",
-      "kavlan-4": "2001:660:4406:390:2::1",
-      "kavlan-5": "2001:660:4406:391:2::1",
-      "kavlan-6": "2001:660:4406:392:2::1",
-      "kavlan-7": "2001:660:4406:393:2::1",
-      "kavlan-8": "2001:660:4406:394:2::1",
-      "kavlan-9": "2001:660:4406:395:2::1"
+      "kavlan-1": "2001:660:4406:380:2:0::1",
+      "kavlan-11": "2001:660:4406:1a0:302:0::1",
+      "kavlan-12": "2001:660:4406:2a0:302:0::1",
+      "kavlan-13": "2001:660:4406:4a0:302:0::1",
+      "kavlan-14": "2001:660:4406:5a0:302:0::1",
+      "kavlan-16": "2001:660:4406:7a0:302:0::1",
+      "kavlan-18": "2001:660:4406:8a0:302:0::1",
+      "kavlan-2": "2001:660:4406:381:2:0::1",
+      "kavlan-20": "2001:660:4406:3a0:302:0::1",
+      "kavlan-21": "2001:660:4406:6a0:302:0::1",
+      "kavlan-3": "2001:660:4406:382:2:0::1",
+      "kavlan-4": "2001:660:4406:390:2:0::1",
+      "kavlan-5": "2001:660:4406:391:2:0::1",
+      "kavlan-6": "2001:660:4406:392:2:0::1",
+      "kavlan-7": "2001:660:4406:393:2:0::1",
+      "kavlan-8": "2001:660:4406:394:2:0::1",
+      "kavlan-9": "2001:660:4406:395:2:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::1",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.1",
-      "ip6": "2001:660:4406:300:2::1",
+      "ip6": "2001:660:4406:300:2:0::1",
       "kavlan": true,
       "mac": "e0:db:55:09:67:b0",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-10.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-10.json
index a6cc7e2cfce..c312a1b009b 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-10.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-10.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::a",
-      "kavlan-11": "2001:660:4406:1a0:302::a",
-      "kavlan-12": "2001:660:4406:2a0:302::a",
-      "kavlan-13": "2001:660:4406:4a0:302::a",
-      "kavlan-14": "2001:660:4406:5a0:302::a",
-      "kavlan-16": "2001:660:4406:7a0:302::a",
-      "kavlan-18": "2001:660:4406:8a0:302::a",
-      "kavlan-2": "2001:660:4406:381:2::a",
-      "kavlan-20": "2001:660:4406:3a0:302::a",
-      "kavlan-21": "2001:660:4406:6a0:302::a",
-      "kavlan-3": "2001:660:4406:382:2::a",
-      "kavlan-4": "2001:660:4406:390:2::a",
-      "kavlan-5": "2001:660:4406:391:2::a",
-      "kavlan-6": "2001:660:4406:392:2::a",
-      "kavlan-7": "2001:660:4406:393:2::a",
-      "kavlan-8": "2001:660:4406:394:2::a",
-      "kavlan-9": "2001:660:4406:395:2::a"
+      "kavlan-1": "2001:660:4406:380:2:0::a",
+      "kavlan-11": "2001:660:4406:1a0:302:0::a",
+      "kavlan-12": "2001:660:4406:2a0:302:0::a",
+      "kavlan-13": "2001:660:4406:4a0:302:0::a",
+      "kavlan-14": "2001:660:4406:5a0:302:0::a",
+      "kavlan-16": "2001:660:4406:7a0:302:0::a",
+      "kavlan-18": "2001:660:4406:8a0:302:0::a",
+      "kavlan-2": "2001:660:4406:381:2:0::a",
+      "kavlan-20": "2001:660:4406:3a0:302:0::a",
+      "kavlan-21": "2001:660:4406:6a0:302:0::a",
+      "kavlan-3": "2001:660:4406:382:2:0::a",
+      "kavlan-4": "2001:660:4406:390:2:0::a",
+      "kavlan-5": "2001:660:4406:391:2:0::a",
+      "kavlan-6": "2001:660:4406:392:2:0::a",
+      "kavlan-7": "2001:660:4406:393:2:0::a",
+      "kavlan-8": "2001:660:4406:394:2:0::a",
+      "kavlan-9": "2001:660:4406:395:2:0::a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::a",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.10",
-      "ip6": "2001:660:4406:300:2::a",
+      "ip6": "2001:660:4406:300:2:0::a",
       "kavlan": true,
       "mac": "e0:db:55:09:ac:90",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-11.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-11.json
index 632ba9e7c1f..7297c1a2185 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-11.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-11.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::b",
-      "kavlan-11": "2001:660:4406:1a0:302::b",
-      "kavlan-12": "2001:660:4406:2a0:302::b",
-      "kavlan-13": "2001:660:4406:4a0:302::b",
-      "kavlan-14": "2001:660:4406:5a0:302::b",
-      "kavlan-16": "2001:660:4406:7a0:302::b",
-      "kavlan-18": "2001:660:4406:8a0:302::b",
-      "kavlan-2": "2001:660:4406:381:2::b",
-      "kavlan-20": "2001:660:4406:3a0:302::b",
-      "kavlan-21": "2001:660:4406:6a0:302::b",
-      "kavlan-3": "2001:660:4406:382:2::b",
-      "kavlan-4": "2001:660:4406:390:2::b",
-      "kavlan-5": "2001:660:4406:391:2::b",
-      "kavlan-6": "2001:660:4406:392:2::b",
-      "kavlan-7": "2001:660:4406:393:2::b",
-      "kavlan-8": "2001:660:4406:394:2::b",
-      "kavlan-9": "2001:660:4406:395:2::b"
+      "kavlan-1": "2001:660:4406:380:2:0::b",
+      "kavlan-11": "2001:660:4406:1a0:302:0::b",
+      "kavlan-12": "2001:660:4406:2a0:302:0::b",
+      "kavlan-13": "2001:660:4406:4a0:302:0::b",
+      "kavlan-14": "2001:660:4406:5a0:302:0::b",
+      "kavlan-16": "2001:660:4406:7a0:302:0::b",
+      "kavlan-18": "2001:660:4406:8a0:302:0::b",
+      "kavlan-2": "2001:660:4406:381:2:0::b",
+      "kavlan-20": "2001:660:4406:3a0:302:0::b",
+      "kavlan-21": "2001:660:4406:6a0:302:0::b",
+      "kavlan-3": "2001:660:4406:382:2:0::b",
+      "kavlan-4": "2001:660:4406:390:2:0::b",
+      "kavlan-5": "2001:660:4406:391:2:0::b",
+      "kavlan-6": "2001:660:4406:392:2:0::b",
+      "kavlan-7": "2001:660:4406:393:2:0::b",
+      "kavlan-8": "2001:660:4406:394:2:0::b",
+      "kavlan-9": "2001:660:4406:395:2:0::b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::b",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.11",
-      "ip6": "2001:660:4406:300:2::b",
+      "ip6": "2001:660:4406:300:2:0::b",
       "kavlan": true,
       "mac": "e0:db:55:09:be:a0",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-13.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-13.json
index ab0fdeaffbb..860beb84e7b 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-13.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-13.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::d",
-      "kavlan-11": "2001:660:4406:1a0:302::d",
-      "kavlan-12": "2001:660:4406:2a0:302::d",
-      "kavlan-13": "2001:660:4406:4a0:302::d",
-      "kavlan-14": "2001:660:4406:5a0:302::d",
-      "kavlan-16": "2001:660:4406:7a0:302::d",
-      "kavlan-18": "2001:660:4406:8a0:302::d",
-      "kavlan-2": "2001:660:4406:381:2::d",
-      "kavlan-20": "2001:660:4406:3a0:302::d",
-      "kavlan-21": "2001:660:4406:6a0:302::d",
-      "kavlan-3": "2001:660:4406:382:2::d",
-      "kavlan-4": "2001:660:4406:390:2::d",
-      "kavlan-5": "2001:660:4406:391:2::d",
-      "kavlan-6": "2001:660:4406:392:2::d",
-      "kavlan-7": "2001:660:4406:393:2::d",
-      "kavlan-8": "2001:660:4406:394:2::d",
-      "kavlan-9": "2001:660:4406:395:2::d"
+      "kavlan-1": "2001:660:4406:380:2:0::d",
+      "kavlan-11": "2001:660:4406:1a0:302:0::d",
+      "kavlan-12": "2001:660:4406:2a0:302:0::d",
+      "kavlan-13": "2001:660:4406:4a0:302:0::d",
+      "kavlan-14": "2001:660:4406:5a0:302:0::d",
+      "kavlan-16": "2001:660:4406:7a0:302:0::d",
+      "kavlan-18": "2001:660:4406:8a0:302:0::d",
+      "kavlan-2": "2001:660:4406:381:2:0::d",
+      "kavlan-20": "2001:660:4406:3a0:302:0::d",
+      "kavlan-21": "2001:660:4406:6a0:302:0::d",
+      "kavlan-3": "2001:660:4406:382:2:0::d",
+      "kavlan-4": "2001:660:4406:390:2:0::d",
+      "kavlan-5": "2001:660:4406:391:2:0::d",
+      "kavlan-6": "2001:660:4406:392:2:0::d",
+      "kavlan-7": "2001:660:4406:393:2:0::d",
+      "kavlan-8": "2001:660:4406:394:2:0::d",
+      "kavlan-9": "2001:660:4406:395:2:0::d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::d",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.13",
-      "ip6": "2001:660:4406:300:2::d",
+      "ip6": "2001:660:4406:300:2:0::d",
       "kavlan": true,
       "mac": "e0:db:55:09:c3:b0",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-14.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-14.json
index d0a87cd59f6..bf83c17a62c 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-14.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-14.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::e",
-      "kavlan-11": "2001:660:4406:1a0:302::e",
-      "kavlan-12": "2001:660:4406:2a0:302::e",
-      "kavlan-13": "2001:660:4406:4a0:302::e",
-      "kavlan-14": "2001:660:4406:5a0:302::e",
-      "kavlan-16": "2001:660:4406:7a0:302::e",
-      "kavlan-18": "2001:660:4406:8a0:302::e",
-      "kavlan-2": "2001:660:4406:381:2::e",
-      "kavlan-20": "2001:660:4406:3a0:302::e",
-      "kavlan-21": "2001:660:4406:6a0:302::e",
-      "kavlan-3": "2001:660:4406:382:2::e",
-      "kavlan-4": "2001:660:4406:390:2::e",
-      "kavlan-5": "2001:660:4406:391:2::e",
-      "kavlan-6": "2001:660:4406:392:2::e",
-      "kavlan-7": "2001:660:4406:393:2::e",
-      "kavlan-8": "2001:660:4406:394:2::e",
-      "kavlan-9": "2001:660:4406:395:2::e"
+      "kavlan-1": "2001:660:4406:380:2:0::e",
+      "kavlan-11": "2001:660:4406:1a0:302:0::e",
+      "kavlan-12": "2001:660:4406:2a0:302:0::e",
+      "kavlan-13": "2001:660:4406:4a0:302:0::e",
+      "kavlan-14": "2001:660:4406:5a0:302:0::e",
+      "kavlan-16": "2001:660:4406:7a0:302:0::e",
+      "kavlan-18": "2001:660:4406:8a0:302:0::e",
+      "kavlan-2": "2001:660:4406:381:2:0::e",
+      "kavlan-20": "2001:660:4406:3a0:302:0::e",
+      "kavlan-21": "2001:660:4406:6a0:302:0::e",
+      "kavlan-3": "2001:660:4406:382:2:0::e",
+      "kavlan-4": "2001:660:4406:390:2:0::e",
+      "kavlan-5": "2001:660:4406:391:2:0::e",
+      "kavlan-6": "2001:660:4406:392:2:0::e",
+      "kavlan-7": "2001:660:4406:393:2:0::e",
+      "kavlan-8": "2001:660:4406:394:2:0::e",
+      "kavlan-9": "2001:660:4406:395:2:0::e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::e",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.14",
-      "ip6": "2001:660:4406:300:2::e",
+      "ip6": "2001:660:4406:300:2:0::e",
       "kavlan": true,
       "mac": "e0:db:55:09:d1:20",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-15.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-15.json
index 903df15a9d8..1130177c6ab 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-15.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-15.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::f",
-      "kavlan-11": "2001:660:4406:1a0:302::f",
-      "kavlan-12": "2001:660:4406:2a0:302::f",
-      "kavlan-13": "2001:660:4406:4a0:302::f",
-      "kavlan-14": "2001:660:4406:5a0:302::f",
-      "kavlan-16": "2001:660:4406:7a0:302::f",
-      "kavlan-18": "2001:660:4406:8a0:302::f",
-      "kavlan-2": "2001:660:4406:381:2::f",
-      "kavlan-20": "2001:660:4406:3a0:302::f",
-      "kavlan-21": "2001:660:4406:6a0:302::f",
-      "kavlan-3": "2001:660:4406:382:2::f",
-      "kavlan-4": "2001:660:4406:390:2::f",
-      "kavlan-5": "2001:660:4406:391:2::f",
-      "kavlan-6": "2001:660:4406:392:2::f",
-      "kavlan-7": "2001:660:4406:393:2::f",
-      "kavlan-8": "2001:660:4406:394:2::f",
-      "kavlan-9": "2001:660:4406:395:2::f"
+      "kavlan-1": "2001:660:4406:380:2:0::f",
+      "kavlan-11": "2001:660:4406:1a0:302:0::f",
+      "kavlan-12": "2001:660:4406:2a0:302:0::f",
+      "kavlan-13": "2001:660:4406:4a0:302:0::f",
+      "kavlan-14": "2001:660:4406:5a0:302:0::f",
+      "kavlan-16": "2001:660:4406:7a0:302:0::f",
+      "kavlan-18": "2001:660:4406:8a0:302:0::f",
+      "kavlan-2": "2001:660:4406:381:2:0::f",
+      "kavlan-20": "2001:660:4406:3a0:302:0::f",
+      "kavlan-21": "2001:660:4406:6a0:302:0::f",
+      "kavlan-3": "2001:660:4406:382:2:0::f",
+      "kavlan-4": "2001:660:4406:390:2:0::f",
+      "kavlan-5": "2001:660:4406:391:2:0::f",
+      "kavlan-6": "2001:660:4406:392:2:0::f",
+      "kavlan-7": "2001:660:4406:393:2:0::f",
+      "kavlan-8": "2001:660:4406:394:2:0::f",
+      "kavlan-9": "2001:660:4406:395:2:0::f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::f",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.15",
-      "ip6": "2001:660:4406:300:2::f",
+      "ip6": "2001:660:4406:300:2:0::f",
       "kavlan": true,
       "mac": "e0:db:55:09:85:d0",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-16.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-16.json
index 03f663e4608..09846425d6e 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-16.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-16.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::10",
-      "kavlan-11": "2001:660:4406:1a0:302::10",
-      "kavlan-12": "2001:660:4406:2a0:302::10",
-      "kavlan-13": "2001:660:4406:4a0:302::10",
-      "kavlan-14": "2001:660:4406:5a0:302::10",
-      "kavlan-16": "2001:660:4406:7a0:302::10",
-      "kavlan-18": "2001:660:4406:8a0:302::10",
-      "kavlan-2": "2001:660:4406:381:2::10",
-      "kavlan-20": "2001:660:4406:3a0:302::10",
-      "kavlan-21": "2001:660:4406:6a0:302::10",
-      "kavlan-3": "2001:660:4406:382:2::10",
-      "kavlan-4": "2001:660:4406:390:2::10",
-      "kavlan-5": "2001:660:4406:391:2::10",
-      "kavlan-6": "2001:660:4406:392:2::10",
-      "kavlan-7": "2001:660:4406:393:2::10",
-      "kavlan-8": "2001:660:4406:394:2::10",
-      "kavlan-9": "2001:660:4406:395:2::10"
+      "kavlan-1": "2001:660:4406:380:2:0::10",
+      "kavlan-11": "2001:660:4406:1a0:302:0::10",
+      "kavlan-12": "2001:660:4406:2a0:302:0::10",
+      "kavlan-13": "2001:660:4406:4a0:302:0::10",
+      "kavlan-14": "2001:660:4406:5a0:302:0::10",
+      "kavlan-16": "2001:660:4406:7a0:302:0::10",
+      "kavlan-18": "2001:660:4406:8a0:302:0::10",
+      "kavlan-2": "2001:660:4406:381:2:0::10",
+      "kavlan-20": "2001:660:4406:3a0:302:0::10",
+      "kavlan-21": "2001:660:4406:6a0:302:0::10",
+      "kavlan-3": "2001:660:4406:382:2:0::10",
+      "kavlan-4": "2001:660:4406:390:2:0::10",
+      "kavlan-5": "2001:660:4406:391:2:0::10",
+      "kavlan-6": "2001:660:4406:392:2:0::10",
+      "kavlan-7": "2001:660:4406:393:2:0::10",
+      "kavlan-8": "2001:660:4406:394:2:0::10",
+      "kavlan-9": "2001:660:4406:395:2:0::10"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::10",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.16",
-      "ip6": "2001:660:4406:300:2::10",
+      "ip6": "2001:660:4406:300:2:0::10",
       "kavlan": true,
       "mac": "e0:db:55:09:ef:a0",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-2.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-2.json
index 35942270798..77b01fabc15 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-2.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-2.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::2",
-      "kavlan-11": "2001:660:4406:1a0:302::2",
-      "kavlan-12": "2001:660:4406:2a0:302::2",
-      "kavlan-13": "2001:660:4406:4a0:302::2",
-      "kavlan-14": "2001:660:4406:5a0:302::2",
-      "kavlan-16": "2001:660:4406:7a0:302::2",
-      "kavlan-18": "2001:660:4406:8a0:302::2",
-      "kavlan-2": "2001:660:4406:381:2::2",
-      "kavlan-20": "2001:660:4406:3a0:302::2",
-      "kavlan-21": "2001:660:4406:6a0:302::2",
-      "kavlan-3": "2001:660:4406:382:2::2",
-      "kavlan-4": "2001:660:4406:390:2::2",
-      "kavlan-5": "2001:660:4406:391:2::2",
-      "kavlan-6": "2001:660:4406:392:2::2",
-      "kavlan-7": "2001:660:4406:393:2::2",
-      "kavlan-8": "2001:660:4406:394:2::2",
-      "kavlan-9": "2001:660:4406:395:2::2"
+      "kavlan-1": "2001:660:4406:380:2:0::2",
+      "kavlan-11": "2001:660:4406:1a0:302:0::2",
+      "kavlan-12": "2001:660:4406:2a0:302:0::2",
+      "kavlan-13": "2001:660:4406:4a0:302:0::2",
+      "kavlan-14": "2001:660:4406:5a0:302:0::2",
+      "kavlan-16": "2001:660:4406:7a0:302:0::2",
+      "kavlan-18": "2001:660:4406:8a0:302:0::2",
+      "kavlan-2": "2001:660:4406:381:2:0::2",
+      "kavlan-20": "2001:660:4406:3a0:302:0::2",
+      "kavlan-21": "2001:660:4406:6a0:302:0::2",
+      "kavlan-3": "2001:660:4406:382:2:0::2",
+      "kavlan-4": "2001:660:4406:390:2:0::2",
+      "kavlan-5": "2001:660:4406:391:2:0::2",
+      "kavlan-6": "2001:660:4406:392:2:0::2",
+      "kavlan-7": "2001:660:4406:393:2:0::2",
+      "kavlan-8": "2001:660:4406:394:2:0::2",
+      "kavlan-9": "2001:660:4406:395:2:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::2",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.2",
-      "ip6": "2001:660:4406:300:2::2",
+      "ip6": "2001:660:4406:300:2:0::2",
       "kavlan": true,
       "mac": "e0:db:55:09:87:90",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json
index e0bf1207613..dd9746f0594 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-3.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::3",
-      "kavlan-11": "2001:660:4406:1a0:302::3",
-      "kavlan-12": "2001:660:4406:2a0:302::3",
-      "kavlan-13": "2001:660:4406:4a0:302::3",
-      "kavlan-14": "2001:660:4406:5a0:302::3",
-      "kavlan-16": "2001:660:4406:7a0:302::3",
-      "kavlan-18": "2001:660:4406:8a0:302::3",
-      "kavlan-2": "2001:660:4406:381:2::3",
-      "kavlan-20": "2001:660:4406:3a0:302::3",
-      "kavlan-21": "2001:660:4406:6a0:302::3",
-      "kavlan-3": "2001:660:4406:382:2::3",
-      "kavlan-4": "2001:660:4406:390:2::3",
-      "kavlan-5": "2001:660:4406:391:2::3",
-      "kavlan-6": "2001:660:4406:392:2::3",
-      "kavlan-7": "2001:660:4406:393:2::3",
-      "kavlan-8": "2001:660:4406:394:2::3",
-      "kavlan-9": "2001:660:4406:395:2::3"
+      "kavlan-1": "2001:660:4406:380:2:0::3",
+      "kavlan-11": "2001:660:4406:1a0:302:0::3",
+      "kavlan-12": "2001:660:4406:2a0:302:0::3",
+      "kavlan-13": "2001:660:4406:4a0:302:0::3",
+      "kavlan-14": "2001:660:4406:5a0:302:0::3",
+      "kavlan-16": "2001:660:4406:7a0:302:0::3",
+      "kavlan-18": "2001:660:4406:8a0:302:0::3",
+      "kavlan-2": "2001:660:4406:381:2:0::3",
+      "kavlan-20": "2001:660:4406:3a0:302:0::3",
+      "kavlan-21": "2001:660:4406:6a0:302:0::3",
+      "kavlan-3": "2001:660:4406:382:2:0::3",
+      "kavlan-4": "2001:660:4406:390:2:0::3",
+      "kavlan-5": "2001:660:4406:391:2:0::3",
+      "kavlan-6": "2001:660:4406:392:2:0::3",
+      "kavlan-7": "2001:660:4406:393:2:0::3",
+      "kavlan-8": "2001:660:4406:394:2:0::3",
+      "kavlan-9": "2001:660:4406:395:2:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::3",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.3",
-      "ip6": "2001:660:4406:300:2::3",
+      "ip6": "2001:660:4406:300:2:0::3",
       "kavlan": true,
       "mac": "e0:db:55:09:65:70",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-4.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-4.json
index 9fcb1fe00fc..8b5667c7369 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-4.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-4.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::4",
-      "kavlan-11": "2001:660:4406:1a0:302::4",
-      "kavlan-12": "2001:660:4406:2a0:302::4",
-      "kavlan-13": "2001:660:4406:4a0:302::4",
-      "kavlan-14": "2001:660:4406:5a0:302::4",
-      "kavlan-16": "2001:660:4406:7a0:302::4",
-      "kavlan-18": "2001:660:4406:8a0:302::4",
-      "kavlan-2": "2001:660:4406:381:2::4",
-      "kavlan-20": "2001:660:4406:3a0:302::4",
-      "kavlan-21": "2001:660:4406:6a0:302::4",
-      "kavlan-3": "2001:660:4406:382:2::4",
-      "kavlan-4": "2001:660:4406:390:2::4",
-      "kavlan-5": "2001:660:4406:391:2::4",
-      "kavlan-6": "2001:660:4406:392:2::4",
-      "kavlan-7": "2001:660:4406:393:2::4",
-      "kavlan-8": "2001:660:4406:394:2::4",
-      "kavlan-9": "2001:660:4406:395:2::4"
+      "kavlan-1": "2001:660:4406:380:2:0::4",
+      "kavlan-11": "2001:660:4406:1a0:302:0::4",
+      "kavlan-12": "2001:660:4406:2a0:302:0::4",
+      "kavlan-13": "2001:660:4406:4a0:302:0::4",
+      "kavlan-14": "2001:660:4406:5a0:302:0::4",
+      "kavlan-16": "2001:660:4406:7a0:302:0::4",
+      "kavlan-18": "2001:660:4406:8a0:302:0::4",
+      "kavlan-2": "2001:660:4406:381:2:0::4",
+      "kavlan-20": "2001:660:4406:3a0:302:0::4",
+      "kavlan-21": "2001:660:4406:6a0:302:0::4",
+      "kavlan-3": "2001:660:4406:382:2:0::4",
+      "kavlan-4": "2001:660:4406:390:2:0::4",
+      "kavlan-5": "2001:660:4406:391:2:0::4",
+      "kavlan-6": "2001:660:4406:392:2:0::4",
+      "kavlan-7": "2001:660:4406:393:2:0::4",
+      "kavlan-8": "2001:660:4406:394:2:0::4",
+      "kavlan-9": "2001:660:4406:395:2:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::4",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.4",
-      "ip6": "2001:660:4406:300:2::4",
+      "ip6": "2001:660:4406:300:2:0::4",
       "kavlan": true,
       "mac": "e0:db:55:09:71:90",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-5.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-5.json
index b94a52f62d8..f3db579ee5b 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-5.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-5.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::5",
-      "kavlan-11": "2001:660:4406:1a0:302::5",
-      "kavlan-12": "2001:660:4406:2a0:302::5",
-      "kavlan-13": "2001:660:4406:4a0:302::5",
-      "kavlan-14": "2001:660:4406:5a0:302::5",
-      "kavlan-16": "2001:660:4406:7a0:302::5",
-      "kavlan-18": "2001:660:4406:8a0:302::5",
-      "kavlan-2": "2001:660:4406:381:2::5",
-      "kavlan-20": "2001:660:4406:3a0:302::5",
-      "kavlan-21": "2001:660:4406:6a0:302::5",
-      "kavlan-3": "2001:660:4406:382:2::5",
-      "kavlan-4": "2001:660:4406:390:2::5",
-      "kavlan-5": "2001:660:4406:391:2::5",
-      "kavlan-6": "2001:660:4406:392:2::5",
-      "kavlan-7": "2001:660:4406:393:2::5",
-      "kavlan-8": "2001:660:4406:394:2::5",
-      "kavlan-9": "2001:660:4406:395:2::5"
+      "kavlan-1": "2001:660:4406:380:2:0::5",
+      "kavlan-11": "2001:660:4406:1a0:302:0::5",
+      "kavlan-12": "2001:660:4406:2a0:302:0::5",
+      "kavlan-13": "2001:660:4406:4a0:302:0::5",
+      "kavlan-14": "2001:660:4406:5a0:302:0::5",
+      "kavlan-16": "2001:660:4406:7a0:302:0::5",
+      "kavlan-18": "2001:660:4406:8a0:302:0::5",
+      "kavlan-2": "2001:660:4406:381:2:0::5",
+      "kavlan-20": "2001:660:4406:3a0:302:0::5",
+      "kavlan-21": "2001:660:4406:6a0:302:0::5",
+      "kavlan-3": "2001:660:4406:382:2:0::5",
+      "kavlan-4": "2001:660:4406:390:2:0::5",
+      "kavlan-5": "2001:660:4406:391:2:0::5",
+      "kavlan-6": "2001:660:4406:392:2:0::5",
+      "kavlan-7": "2001:660:4406:393:2:0::5",
+      "kavlan-8": "2001:660:4406:394:2:0::5",
+      "kavlan-9": "2001:660:4406:395:2:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::5",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.5",
-      "ip6": "2001:660:4406:300:2::5",
+      "ip6": "2001:660:4406:300:2:0::5",
       "kavlan": true,
       "mac": "e0:db:55:09:d0:40",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-6.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-6.json
index abe74fbd002..463938d616d 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-6.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-6.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::6",
-      "kavlan-11": "2001:660:4406:1a0:302::6",
-      "kavlan-12": "2001:660:4406:2a0:302::6",
-      "kavlan-13": "2001:660:4406:4a0:302::6",
-      "kavlan-14": "2001:660:4406:5a0:302::6",
-      "kavlan-16": "2001:660:4406:7a0:302::6",
-      "kavlan-18": "2001:660:4406:8a0:302::6",
-      "kavlan-2": "2001:660:4406:381:2::6",
-      "kavlan-20": "2001:660:4406:3a0:302::6",
-      "kavlan-21": "2001:660:4406:6a0:302::6",
-      "kavlan-3": "2001:660:4406:382:2::6",
-      "kavlan-4": "2001:660:4406:390:2::6",
-      "kavlan-5": "2001:660:4406:391:2::6",
-      "kavlan-6": "2001:660:4406:392:2::6",
-      "kavlan-7": "2001:660:4406:393:2::6",
-      "kavlan-8": "2001:660:4406:394:2::6",
-      "kavlan-9": "2001:660:4406:395:2::6"
+      "kavlan-1": "2001:660:4406:380:2:0::6",
+      "kavlan-11": "2001:660:4406:1a0:302:0::6",
+      "kavlan-12": "2001:660:4406:2a0:302:0::6",
+      "kavlan-13": "2001:660:4406:4a0:302:0::6",
+      "kavlan-14": "2001:660:4406:5a0:302:0::6",
+      "kavlan-16": "2001:660:4406:7a0:302:0::6",
+      "kavlan-18": "2001:660:4406:8a0:302:0::6",
+      "kavlan-2": "2001:660:4406:381:2:0::6",
+      "kavlan-20": "2001:660:4406:3a0:302:0::6",
+      "kavlan-21": "2001:660:4406:6a0:302:0::6",
+      "kavlan-3": "2001:660:4406:382:2:0::6",
+      "kavlan-4": "2001:660:4406:390:2:0::6",
+      "kavlan-5": "2001:660:4406:391:2:0::6",
+      "kavlan-6": "2001:660:4406:392:2:0::6",
+      "kavlan-7": "2001:660:4406:393:2:0::6",
+      "kavlan-8": "2001:660:4406:394:2:0::6",
+      "kavlan-9": "2001:660:4406:395:2:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::6",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.6",
-      "ip6": "2001:660:4406:300:2::6",
+      "ip6": "2001:660:4406:300:2:0::6",
       "kavlan": true,
       "mac": "e0:db:55:09:7b:70",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-7.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-7.json
index 6a61544665f..59a8cebefe1 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-7.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-7.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::7",
-      "kavlan-11": "2001:660:4406:1a0:302::7",
-      "kavlan-12": "2001:660:4406:2a0:302::7",
-      "kavlan-13": "2001:660:4406:4a0:302::7",
-      "kavlan-14": "2001:660:4406:5a0:302::7",
-      "kavlan-16": "2001:660:4406:7a0:302::7",
-      "kavlan-18": "2001:660:4406:8a0:302::7",
-      "kavlan-2": "2001:660:4406:381:2::7",
-      "kavlan-20": "2001:660:4406:3a0:302::7",
-      "kavlan-21": "2001:660:4406:6a0:302::7",
-      "kavlan-3": "2001:660:4406:382:2::7",
-      "kavlan-4": "2001:660:4406:390:2::7",
-      "kavlan-5": "2001:660:4406:391:2::7",
-      "kavlan-6": "2001:660:4406:392:2::7",
-      "kavlan-7": "2001:660:4406:393:2::7",
-      "kavlan-8": "2001:660:4406:394:2::7",
-      "kavlan-9": "2001:660:4406:395:2::7"
+      "kavlan-1": "2001:660:4406:380:2:0::7",
+      "kavlan-11": "2001:660:4406:1a0:302:0::7",
+      "kavlan-12": "2001:660:4406:2a0:302:0::7",
+      "kavlan-13": "2001:660:4406:4a0:302:0::7",
+      "kavlan-14": "2001:660:4406:5a0:302:0::7",
+      "kavlan-16": "2001:660:4406:7a0:302:0::7",
+      "kavlan-18": "2001:660:4406:8a0:302:0::7",
+      "kavlan-2": "2001:660:4406:381:2:0::7",
+      "kavlan-20": "2001:660:4406:3a0:302:0::7",
+      "kavlan-21": "2001:660:4406:6a0:302:0::7",
+      "kavlan-3": "2001:660:4406:382:2:0::7",
+      "kavlan-4": "2001:660:4406:390:2:0::7",
+      "kavlan-5": "2001:660:4406:391:2:0::7",
+      "kavlan-6": "2001:660:4406:392:2:0::7",
+      "kavlan-7": "2001:660:4406:393:2:0::7",
+      "kavlan-8": "2001:660:4406:394:2:0::7",
+      "kavlan-9": "2001:660:4406:395:2:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::7",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.7",
-      "ip6": "2001:660:4406:300:2::7",
+      "ip6": "2001:660:4406:300:2:0::7",
       "kavlan": true,
       "mac": "e0:db:55:09:ac:80",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-8.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-8.json
index fad2e8d5c60..3c820cccb17 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-8.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-8.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::8",
-      "kavlan-11": "2001:660:4406:1a0:302::8",
-      "kavlan-12": "2001:660:4406:2a0:302::8",
-      "kavlan-13": "2001:660:4406:4a0:302::8",
-      "kavlan-14": "2001:660:4406:5a0:302::8",
-      "kavlan-16": "2001:660:4406:7a0:302::8",
-      "kavlan-18": "2001:660:4406:8a0:302::8",
-      "kavlan-2": "2001:660:4406:381:2::8",
-      "kavlan-20": "2001:660:4406:3a0:302::8",
-      "kavlan-21": "2001:660:4406:6a0:302::8",
-      "kavlan-3": "2001:660:4406:382:2::8",
-      "kavlan-4": "2001:660:4406:390:2::8",
-      "kavlan-5": "2001:660:4406:391:2::8",
-      "kavlan-6": "2001:660:4406:392:2::8",
-      "kavlan-7": "2001:660:4406:393:2::8",
-      "kavlan-8": "2001:660:4406:394:2::8",
-      "kavlan-9": "2001:660:4406:395:2::8"
+      "kavlan-1": "2001:660:4406:380:2:0::8",
+      "kavlan-11": "2001:660:4406:1a0:302:0::8",
+      "kavlan-12": "2001:660:4406:2a0:302:0::8",
+      "kavlan-13": "2001:660:4406:4a0:302:0::8",
+      "kavlan-14": "2001:660:4406:5a0:302:0::8",
+      "kavlan-16": "2001:660:4406:7a0:302:0::8",
+      "kavlan-18": "2001:660:4406:8a0:302:0::8",
+      "kavlan-2": "2001:660:4406:381:2:0::8",
+      "kavlan-20": "2001:660:4406:3a0:302:0::8",
+      "kavlan-21": "2001:660:4406:6a0:302:0::8",
+      "kavlan-3": "2001:660:4406:382:2:0::8",
+      "kavlan-4": "2001:660:4406:390:2:0::8",
+      "kavlan-5": "2001:660:4406:391:2:0::8",
+      "kavlan-6": "2001:660:4406:392:2:0::8",
+      "kavlan-7": "2001:660:4406:393:2:0::8",
+      "kavlan-8": "2001:660:4406:394:2:0::8",
+      "kavlan-9": "2001:660:4406:395:2:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::8",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.8",
-      "ip6": "2001:660:4406:300:2::8",
+      "ip6": "2001:660:4406:300:2:0::8",
       "kavlan": true,
       "mac": "e0:db:55:09:85:f0",
       "management": false,
diff --git a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-9.json b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-9.json
index 29de10bd71d..b8915c56d43 100644
--- a/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-9.json
+++ b/data/grid5000/sites/luxembourg/clusters/petitprince/nodes/petitprince-9.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:380:2::9",
-      "kavlan-11": "2001:660:4406:1a0:302::9",
-      "kavlan-12": "2001:660:4406:2a0:302::9",
-      "kavlan-13": "2001:660:4406:4a0:302::9",
-      "kavlan-14": "2001:660:4406:5a0:302::9",
-      "kavlan-16": "2001:660:4406:7a0:302::9",
-      "kavlan-18": "2001:660:4406:8a0:302::9",
-      "kavlan-2": "2001:660:4406:381:2::9",
-      "kavlan-20": "2001:660:4406:3a0:302::9",
-      "kavlan-21": "2001:660:4406:6a0:302::9",
-      "kavlan-3": "2001:660:4406:382:2::9",
-      "kavlan-4": "2001:660:4406:390:2::9",
-      "kavlan-5": "2001:660:4406:391:2::9",
-      "kavlan-6": "2001:660:4406:392:2::9",
-      "kavlan-7": "2001:660:4406:393:2::9",
-      "kavlan-8": "2001:660:4406:394:2::9",
-      "kavlan-9": "2001:660:4406:395:2::9"
+      "kavlan-1": "2001:660:4406:380:2:0::9",
+      "kavlan-11": "2001:660:4406:1a0:302:0::9",
+      "kavlan-12": "2001:660:4406:2a0:302:0::9",
+      "kavlan-13": "2001:660:4406:4a0:302:0::9",
+      "kavlan-14": "2001:660:4406:5a0:302:0::9",
+      "kavlan-16": "2001:660:4406:7a0:302:0::9",
+      "kavlan-18": "2001:660:4406:8a0:302:0::9",
+      "kavlan-2": "2001:660:4406:381:2:0::9",
+      "kavlan-20": "2001:660:4406:3a0:302:0::9",
+      "kavlan-21": "2001:660:4406:6a0:302:0::9",
+      "kavlan-3": "2001:660:4406:382:2:0::9",
+      "kavlan-4": "2001:660:4406:390:2:0::9",
+      "kavlan-5": "2001:660:4406:391:2:0::9",
+      "kavlan-6": "2001:660:4406:392:2:0::9",
+      "kavlan-7": "2001:660:4406:393:2:0::9",
+      "kavlan-8": "2001:660:4406:394:2:0::9",
+      "kavlan-9": "2001:660:4406:395:2:0::9"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:380:2:1::9",
@@ -113,7 +113,7 @@
       "firmware_version": "FFV14.07.06 bc 7.14.11",
       "interface": "Ethernet",
       "ip": "172.16.177.9",
-      "ip6": "2001:660:4406:300:2::9",
+      "ip6": "2001:660:4406:300:2:0::9",
       "kavlan": true,
       "mac": "e0:db:55:09:7d:30",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
index 47720afe25b..23993de45b4 100644
--- a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
+++ b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-1.json
@@ -115,23 +115,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:6::1",
-      "kavlan-11": "2001:660:4406:1a0:406::1",
-      "kavlan-12": "2001:660:4406:2a0:406::1",
-      "kavlan-13": "2001:660:4406:4a0:406::1",
-      "kavlan-14": "2001:660:4406:5a0:406::1",
-      "kavlan-16": "2001:660:4406:7a0:406::1",
-      "kavlan-18": "2001:660:4406:8a0:406::1",
-      "kavlan-2": "2001:660:4406:481:6::1",
-      "kavlan-20": "2001:660:4406:3a0:406::1",
-      "kavlan-21": "2001:660:4406:6a0:406::1",
-      "kavlan-3": "2001:660:4406:482:6::1",
-      "kavlan-4": "2001:660:4406:490:6::1",
-      "kavlan-5": "2001:660:4406:491:6::1",
-      "kavlan-6": "2001:660:4406:492:6::1",
-      "kavlan-7": "2001:660:4406:493:6::1",
-      "kavlan-8": "2001:660:4406:494:6::1",
-      "kavlan-9": "2001:660:4406:495:6::1"
+      "kavlan-1": "2001:660:4406:480:6:0::1",
+      "kavlan-11": "2001:660:4406:1a0:406:0::1",
+      "kavlan-12": "2001:660:4406:2a0:406:0::1",
+      "kavlan-13": "2001:660:4406:4a0:406:0::1",
+      "kavlan-14": "2001:660:4406:5a0:406:0::1",
+      "kavlan-16": "2001:660:4406:7a0:406:0::1",
+      "kavlan-18": "2001:660:4406:8a0:406:0::1",
+      "kavlan-2": "2001:660:4406:481:6:0::1",
+      "kavlan-20": "2001:660:4406:3a0:406:0::1",
+      "kavlan-21": "2001:660:4406:6a0:406:0::1",
+      "kavlan-3": "2001:660:4406:482:6:0::1",
+      "kavlan-4": "2001:660:4406:490:6:0::1",
+      "kavlan-5": "2001:660:4406:491:6:0::1",
+      "kavlan-6": "2001:660:4406:492:6:0::1",
+      "kavlan-7": "2001:660:4406:493:6:0::1",
+      "kavlan-8": "2001:660:4406:494:6:0::1",
+      "kavlan-9": "2001:660:4406:495:6:0::1"
     }
   },
   "main_memory": {
@@ -148,7 +148,7 @@
       "firmware_version": "0x800003e2, 1.1147.0",
       "interface": "Ethernet",
       "ip": "172.16.53.1",
-      "ip6": "2001:660:4406:400:6::1",
+      "ip6": "2001:660:4406:400:6:0::1",
       "kavlan": true,
       "mac": "d8:c4:97:b8:32:83",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
index 0f19f323904..902121da267 100644
--- a/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
+++ b/data/grid5000/sites/lyon/clusters/gemini/nodes/gemini-2.json
@@ -115,23 +115,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:6::2",
-      "kavlan-11": "2001:660:4406:1a0:406::2",
-      "kavlan-12": "2001:660:4406:2a0:406::2",
-      "kavlan-13": "2001:660:4406:4a0:406::2",
-      "kavlan-14": "2001:660:4406:5a0:406::2",
-      "kavlan-16": "2001:660:4406:7a0:406::2",
-      "kavlan-18": "2001:660:4406:8a0:406::2",
-      "kavlan-2": "2001:660:4406:481:6::2",
-      "kavlan-20": "2001:660:4406:3a0:406::2",
-      "kavlan-21": "2001:660:4406:6a0:406::2",
-      "kavlan-3": "2001:660:4406:482:6::2",
-      "kavlan-4": "2001:660:4406:490:6::2",
-      "kavlan-5": "2001:660:4406:491:6::2",
-      "kavlan-6": "2001:660:4406:492:6::2",
-      "kavlan-7": "2001:660:4406:493:6::2",
-      "kavlan-8": "2001:660:4406:494:6::2",
-      "kavlan-9": "2001:660:4406:495:6::2"
+      "kavlan-1": "2001:660:4406:480:6:0::2",
+      "kavlan-11": "2001:660:4406:1a0:406:0::2",
+      "kavlan-12": "2001:660:4406:2a0:406:0::2",
+      "kavlan-13": "2001:660:4406:4a0:406:0::2",
+      "kavlan-14": "2001:660:4406:5a0:406:0::2",
+      "kavlan-16": "2001:660:4406:7a0:406:0::2",
+      "kavlan-18": "2001:660:4406:8a0:406:0::2",
+      "kavlan-2": "2001:660:4406:481:6:0::2",
+      "kavlan-20": "2001:660:4406:3a0:406:0::2",
+      "kavlan-21": "2001:660:4406:6a0:406:0::2",
+      "kavlan-3": "2001:660:4406:482:6:0::2",
+      "kavlan-4": "2001:660:4406:490:6:0::2",
+      "kavlan-5": "2001:660:4406:491:6:0::2",
+      "kavlan-6": "2001:660:4406:492:6:0::2",
+      "kavlan-7": "2001:660:4406:493:6:0::2",
+      "kavlan-8": "2001:660:4406:494:6:0::2",
+      "kavlan-9": "2001:660:4406:495:6:0::2"
     }
   },
   "main_memory": {
@@ -148,7 +148,7 @@
       "firmware_version": "0x800003e2, 1.1147.0",
       "interface": "Ethernet",
       "ip": "172.16.53.2",
-      "ip6": "2001:660:4406:400:6::2",
+      "ip6": "2001:660:4406:400:6:0::2",
       "kavlan": true,
       "mac": "d8:c4:97:b8:32:fd",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-1.json b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-1.json
index 833dfd442d7..693f7415b8f 100644
--- a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-1.json
+++ b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:4::1",
-      "kavlan-11": "2001:660:4406:1a0:404::1",
-      "kavlan-12": "2001:660:4406:2a0:404::1",
-      "kavlan-13": "2001:660:4406:4a0:404::1",
-      "kavlan-14": "2001:660:4406:5a0:404::1",
-      "kavlan-16": "2001:660:4406:7a0:404::1",
-      "kavlan-18": "2001:660:4406:8a0:404::1",
-      "kavlan-2": "2001:660:4406:481:4::1",
-      "kavlan-20": "2001:660:4406:3a0:404::1",
-      "kavlan-21": "2001:660:4406:6a0:404::1",
-      "kavlan-3": "2001:660:4406:482:4::1",
-      "kavlan-4": "2001:660:4406:490:4::1",
-      "kavlan-5": "2001:660:4406:491:4::1",
-      "kavlan-6": "2001:660:4406:492:4::1",
-      "kavlan-7": "2001:660:4406:493:4::1",
-      "kavlan-8": "2001:660:4406:494:4::1",
-      "kavlan-9": "2001:660:4406:495:4::1"
+      "kavlan-1": "2001:660:4406:480:4:0::1",
+      "kavlan-11": "2001:660:4406:1a0:404:0::1",
+      "kavlan-12": "2001:660:4406:2a0:404:0::1",
+      "kavlan-13": "2001:660:4406:4a0:404:0::1",
+      "kavlan-14": "2001:660:4406:5a0:404:0::1",
+      "kavlan-16": "2001:660:4406:7a0:404:0::1",
+      "kavlan-18": "2001:660:4406:8a0:404:0::1",
+      "kavlan-2": "2001:660:4406:481:4:0::1",
+      "kavlan-20": "2001:660:4406:3a0:404:0::1",
+      "kavlan-21": "2001:660:4406:6a0:404:0::1",
+      "kavlan-3": "2001:660:4406:482:4:0::1",
+      "kavlan-4": "2001:660:4406:490:4:0::1",
+      "kavlan-5": "2001:660:4406:491:4:0::1",
+      "kavlan-6": "2001:660:4406:492:4:0::1",
+      "kavlan-7": "2001:660:4406:493:4:0::1",
+      "kavlan-8": "2001:660:4406:494:4:0::1",
+      "kavlan-9": "2001:660:4406:495:4:0::1"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "0x00000000",
       "interface": "Ethernet",
       "ip": "172.16.51.1",
-      "ip6": "2001:660:4406:400:4::1",
+      "ip6": "2001:660:4406:400:4:0::1",
       "kavlan": true,
       "mac": "00:8c:fa:0b:b9:c3",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-2.json b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-2.json
index b301a0b0e94..50baecb83d1 100644
--- a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-2.json
+++ b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:4::2",
-      "kavlan-11": "2001:660:4406:1a0:404::2",
-      "kavlan-12": "2001:660:4406:2a0:404::2",
-      "kavlan-13": "2001:660:4406:4a0:404::2",
-      "kavlan-14": "2001:660:4406:5a0:404::2",
-      "kavlan-16": "2001:660:4406:7a0:404::2",
-      "kavlan-18": "2001:660:4406:8a0:404::2",
-      "kavlan-2": "2001:660:4406:481:4::2",
-      "kavlan-20": "2001:660:4406:3a0:404::2",
-      "kavlan-21": "2001:660:4406:6a0:404::2",
-      "kavlan-3": "2001:660:4406:482:4::2",
-      "kavlan-4": "2001:660:4406:490:4::2",
-      "kavlan-5": "2001:660:4406:491:4::2",
-      "kavlan-6": "2001:660:4406:492:4::2",
-      "kavlan-7": "2001:660:4406:493:4::2",
-      "kavlan-8": "2001:660:4406:494:4::2",
-      "kavlan-9": "2001:660:4406:495:4::2"
+      "kavlan-1": "2001:660:4406:480:4:0::2",
+      "kavlan-11": "2001:660:4406:1a0:404:0::2",
+      "kavlan-12": "2001:660:4406:2a0:404:0::2",
+      "kavlan-13": "2001:660:4406:4a0:404:0::2",
+      "kavlan-14": "2001:660:4406:5a0:404:0::2",
+      "kavlan-16": "2001:660:4406:7a0:404:0::2",
+      "kavlan-18": "2001:660:4406:8a0:404:0::2",
+      "kavlan-2": "2001:660:4406:481:4:0::2",
+      "kavlan-20": "2001:660:4406:3a0:404:0::2",
+      "kavlan-21": "2001:660:4406:6a0:404:0::2",
+      "kavlan-3": "2001:660:4406:482:4:0::2",
+      "kavlan-4": "2001:660:4406:490:4:0::2",
+      "kavlan-5": "2001:660:4406:491:4:0::2",
+      "kavlan-6": "2001:660:4406:492:4:0::2",
+      "kavlan-7": "2001:660:4406:493:4:0::2",
+      "kavlan-8": "2001:660:4406:494:4:0::2",
+      "kavlan-9": "2001:660:4406:495:4:0::2"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "0x00000000",
       "interface": "Ethernet",
       "ip": "172.16.51.2",
-      "ip6": "2001:660:4406:400:4::2",
+      "ip6": "2001:660:4406:400:4:0::2",
       "kavlan": true,
       "mac": "00:8c:fa:0b:b4:bd",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-3.json b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-3.json
index 4e73f8fa71b..eab539750b3 100644
--- a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-3.json
+++ b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:4::3",
-      "kavlan-11": "2001:660:4406:1a0:404::3",
-      "kavlan-12": "2001:660:4406:2a0:404::3",
-      "kavlan-13": "2001:660:4406:4a0:404::3",
-      "kavlan-14": "2001:660:4406:5a0:404::3",
-      "kavlan-16": "2001:660:4406:7a0:404::3",
-      "kavlan-18": "2001:660:4406:8a0:404::3",
-      "kavlan-2": "2001:660:4406:481:4::3",
-      "kavlan-20": "2001:660:4406:3a0:404::3",
-      "kavlan-21": "2001:660:4406:6a0:404::3",
-      "kavlan-3": "2001:660:4406:482:4::3",
-      "kavlan-4": "2001:660:4406:490:4::3",
-      "kavlan-5": "2001:660:4406:491:4::3",
-      "kavlan-6": "2001:660:4406:492:4::3",
-      "kavlan-7": "2001:660:4406:493:4::3",
-      "kavlan-8": "2001:660:4406:494:4::3",
-      "kavlan-9": "2001:660:4406:495:4::3"
+      "kavlan-1": "2001:660:4406:480:4:0::3",
+      "kavlan-11": "2001:660:4406:1a0:404:0::3",
+      "kavlan-12": "2001:660:4406:2a0:404:0::3",
+      "kavlan-13": "2001:660:4406:4a0:404:0::3",
+      "kavlan-14": "2001:660:4406:5a0:404:0::3",
+      "kavlan-16": "2001:660:4406:7a0:404:0::3",
+      "kavlan-18": "2001:660:4406:8a0:404:0::3",
+      "kavlan-2": "2001:660:4406:481:4:0::3",
+      "kavlan-20": "2001:660:4406:3a0:404:0::3",
+      "kavlan-21": "2001:660:4406:6a0:404:0::3",
+      "kavlan-3": "2001:660:4406:482:4:0::3",
+      "kavlan-4": "2001:660:4406:490:4:0::3",
+      "kavlan-5": "2001:660:4406:491:4:0::3",
+      "kavlan-6": "2001:660:4406:492:4:0::3",
+      "kavlan-7": "2001:660:4406:493:4:0::3",
+      "kavlan-8": "2001:660:4406:494:4:0::3",
+      "kavlan-9": "2001:660:4406:495:4:0::3"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "0x00000000",
       "interface": "Ethernet",
       "ip": "172.16.51.3",
-      "ip6": "2001:660:4406:400:4::3",
+      "ip6": "2001:660:4406:400:4:0::3",
       "kavlan": true,
       "mac": "00:8c:fa:0b:e1:79",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-4.json b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-4.json
index 8b461829f98..e907ae7e7fc 100644
--- a/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-4.json
+++ b/data/grid5000/sites/lyon/clusters/hercule/nodes/hercule-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:4::4",
-      "kavlan-11": "2001:660:4406:1a0:404::4",
-      "kavlan-12": "2001:660:4406:2a0:404::4",
-      "kavlan-13": "2001:660:4406:4a0:404::4",
-      "kavlan-14": "2001:660:4406:5a0:404::4",
-      "kavlan-16": "2001:660:4406:7a0:404::4",
-      "kavlan-18": "2001:660:4406:8a0:404::4",
-      "kavlan-2": "2001:660:4406:481:4::4",
-      "kavlan-20": "2001:660:4406:3a0:404::4",
-      "kavlan-21": "2001:660:4406:6a0:404::4",
-      "kavlan-3": "2001:660:4406:482:4::4",
-      "kavlan-4": "2001:660:4406:490:4::4",
-      "kavlan-5": "2001:660:4406:491:4::4",
-      "kavlan-6": "2001:660:4406:492:4::4",
-      "kavlan-7": "2001:660:4406:493:4::4",
-      "kavlan-8": "2001:660:4406:494:4::4",
-      "kavlan-9": "2001:660:4406:495:4::4"
+      "kavlan-1": "2001:660:4406:480:4:0::4",
+      "kavlan-11": "2001:660:4406:1a0:404:0::4",
+      "kavlan-12": "2001:660:4406:2a0:404:0::4",
+      "kavlan-13": "2001:660:4406:4a0:404:0::4",
+      "kavlan-14": "2001:660:4406:5a0:404:0::4",
+      "kavlan-16": "2001:660:4406:7a0:404:0::4",
+      "kavlan-18": "2001:660:4406:8a0:404:0::4",
+      "kavlan-2": "2001:660:4406:481:4:0::4",
+      "kavlan-20": "2001:660:4406:3a0:404:0::4",
+      "kavlan-21": "2001:660:4406:6a0:404:0::4",
+      "kavlan-3": "2001:660:4406:482:4:0::4",
+      "kavlan-4": "2001:660:4406:490:4:0::4",
+      "kavlan-5": "2001:660:4406:491:4:0::4",
+      "kavlan-6": "2001:660:4406:492:4:0::4",
+      "kavlan-7": "2001:660:4406:493:4:0::4",
+      "kavlan-8": "2001:660:4406:494:4:0::4",
+      "kavlan-9": "2001:660:4406:495:4:0::4"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "0x00000000",
       "interface": "Ethernet",
       "ip": "172.16.51.4",
-      "ip6": "2001:660:4406:400:4::4",
+      "ip6": "2001:660:4406:400:4:0::4",
       "kavlan": true,
       "mac": "00:8c:fa:0b:d8:53",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-1.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-1.json
index 1ffeefd74e8..6f1d604ca44 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-1.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::1",
-      "kavlan-11": "2001:660:4406:1a0:405::1",
-      "kavlan-12": "2001:660:4406:2a0:405::1",
-      "kavlan-13": "2001:660:4406:4a0:405::1",
-      "kavlan-14": "2001:660:4406:5a0:405::1",
-      "kavlan-16": "2001:660:4406:7a0:405::1",
-      "kavlan-18": "2001:660:4406:8a0:405::1",
-      "kavlan-2": "2001:660:4406:481:5::1",
-      "kavlan-20": "2001:660:4406:3a0:405::1",
-      "kavlan-21": "2001:660:4406:6a0:405::1",
-      "kavlan-3": "2001:660:4406:482:5::1",
-      "kavlan-4": "2001:660:4406:490:5::1",
-      "kavlan-5": "2001:660:4406:491:5::1",
-      "kavlan-6": "2001:660:4406:492:5::1",
-      "kavlan-7": "2001:660:4406:493:5::1",
-      "kavlan-8": "2001:660:4406:494:5::1",
-      "kavlan-9": "2001:660:4406:495:5::1"
+      "kavlan-1": "2001:660:4406:480:5:0::1",
+      "kavlan-11": "2001:660:4406:1a0:405:0::1",
+      "kavlan-12": "2001:660:4406:2a0:405:0::1",
+      "kavlan-13": "2001:660:4406:4a0:405:0::1",
+      "kavlan-14": "2001:660:4406:5a0:405:0::1",
+      "kavlan-16": "2001:660:4406:7a0:405:0::1",
+      "kavlan-18": "2001:660:4406:8a0:405:0::1",
+      "kavlan-2": "2001:660:4406:481:5:0::1",
+      "kavlan-20": "2001:660:4406:3a0:405:0::1",
+      "kavlan-21": "2001:660:4406:6a0:405:0::1",
+      "kavlan-3": "2001:660:4406:482:5:0::1",
+      "kavlan-4": "2001:660:4406:490:5:0::1",
+      "kavlan-5": "2001:660:4406:491:5:0::1",
+      "kavlan-6": "2001:660:4406:492:5:0::1",
+      "kavlan-7": "2001:660:4406:493:5:0::1",
+      "kavlan-8": "2001:660:4406:494:5:0::1",
+      "kavlan-9": "2001:660:4406:495:5:0::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.1",
-      "ip6": "2001:660:4406:400:5::1",
+      "ip6": "2001:660:4406:400:5:0::1",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:c4",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-10.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-10.json
index 477fcbbf853..3248532cd41 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-10.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::a",
-      "kavlan-11": "2001:660:4406:1a0:405::a",
-      "kavlan-12": "2001:660:4406:2a0:405::a",
-      "kavlan-13": "2001:660:4406:4a0:405::a",
-      "kavlan-14": "2001:660:4406:5a0:405::a",
-      "kavlan-16": "2001:660:4406:7a0:405::a",
-      "kavlan-18": "2001:660:4406:8a0:405::a",
-      "kavlan-2": "2001:660:4406:481:5::a",
-      "kavlan-20": "2001:660:4406:3a0:405::a",
-      "kavlan-21": "2001:660:4406:6a0:405::a",
-      "kavlan-3": "2001:660:4406:482:5::a",
-      "kavlan-4": "2001:660:4406:490:5::a",
-      "kavlan-5": "2001:660:4406:491:5::a",
-      "kavlan-6": "2001:660:4406:492:5::a",
-      "kavlan-7": "2001:660:4406:493:5::a",
-      "kavlan-8": "2001:660:4406:494:5::a",
-      "kavlan-9": "2001:660:4406:495:5::a"
+      "kavlan-1": "2001:660:4406:480:5:0::a",
+      "kavlan-11": "2001:660:4406:1a0:405:0::a",
+      "kavlan-12": "2001:660:4406:2a0:405:0::a",
+      "kavlan-13": "2001:660:4406:4a0:405:0::a",
+      "kavlan-14": "2001:660:4406:5a0:405:0::a",
+      "kavlan-16": "2001:660:4406:7a0:405:0::a",
+      "kavlan-18": "2001:660:4406:8a0:405:0::a",
+      "kavlan-2": "2001:660:4406:481:5:0::a",
+      "kavlan-20": "2001:660:4406:3a0:405:0::a",
+      "kavlan-21": "2001:660:4406:6a0:405:0::a",
+      "kavlan-3": "2001:660:4406:482:5:0::a",
+      "kavlan-4": "2001:660:4406:490:5:0::a",
+      "kavlan-5": "2001:660:4406:491:5:0::a",
+      "kavlan-6": "2001:660:4406:492:5:0::a",
+      "kavlan-7": "2001:660:4406:493:5:0::a",
+      "kavlan-8": "2001:660:4406:494:5:0::a",
+      "kavlan-9": "2001:660:4406:495:5:0::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.10",
-      "ip6": "2001:660:4406:400:5::a",
+      "ip6": "2001:660:4406:400:5:0::a",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:20",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-11.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-11.json
index 97821323a8e..94e53239df5 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-11.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::b",
-      "kavlan-11": "2001:660:4406:1a0:405::b",
-      "kavlan-12": "2001:660:4406:2a0:405::b",
-      "kavlan-13": "2001:660:4406:4a0:405::b",
-      "kavlan-14": "2001:660:4406:5a0:405::b",
-      "kavlan-16": "2001:660:4406:7a0:405::b",
-      "kavlan-18": "2001:660:4406:8a0:405::b",
-      "kavlan-2": "2001:660:4406:481:5::b",
-      "kavlan-20": "2001:660:4406:3a0:405::b",
-      "kavlan-21": "2001:660:4406:6a0:405::b",
-      "kavlan-3": "2001:660:4406:482:5::b",
-      "kavlan-4": "2001:660:4406:490:5::b",
-      "kavlan-5": "2001:660:4406:491:5::b",
-      "kavlan-6": "2001:660:4406:492:5::b",
-      "kavlan-7": "2001:660:4406:493:5::b",
-      "kavlan-8": "2001:660:4406:494:5::b",
-      "kavlan-9": "2001:660:4406:495:5::b"
+      "kavlan-1": "2001:660:4406:480:5:0::b",
+      "kavlan-11": "2001:660:4406:1a0:405:0::b",
+      "kavlan-12": "2001:660:4406:2a0:405:0::b",
+      "kavlan-13": "2001:660:4406:4a0:405:0::b",
+      "kavlan-14": "2001:660:4406:5a0:405:0::b",
+      "kavlan-16": "2001:660:4406:7a0:405:0::b",
+      "kavlan-18": "2001:660:4406:8a0:405:0::b",
+      "kavlan-2": "2001:660:4406:481:5:0::b",
+      "kavlan-20": "2001:660:4406:3a0:405:0::b",
+      "kavlan-21": "2001:660:4406:6a0:405:0::b",
+      "kavlan-3": "2001:660:4406:482:5:0::b",
+      "kavlan-4": "2001:660:4406:490:5:0::b",
+      "kavlan-5": "2001:660:4406:491:5:0::b",
+      "kavlan-6": "2001:660:4406:492:5:0::b",
+      "kavlan-7": "2001:660:4406:493:5:0::b",
+      "kavlan-8": "2001:660:4406:494:5:0::b",
+      "kavlan-9": "2001:660:4406:495:5:0::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.11",
-      "ip6": "2001:660:4406:400:5::b",
+      "ip6": "2001:660:4406:400:5:0::b",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:50",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-12.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-12.json
index 048c66708e7..269a97bc1c2 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-12.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::c",
-      "kavlan-11": "2001:660:4406:1a0:405::c",
-      "kavlan-12": "2001:660:4406:2a0:405::c",
-      "kavlan-13": "2001:660:4406:4a0:405::c",
-      "kavlan-14": "2001:660:4406:5a0:405::c",
-      "kavlan-16": "2001:660:4406:7a0:405::c",
-      "kavlan-18": "2001:660:4406:8a0:405::c",
-      "kavlan-2": "2001:660:4406:481:5::c",
-      "kavlan-20": "2001:660:4406:3a0:405::c",
-      "kavlan-21": "2001:660:4406:6a0:405::c",
-      "kavlan-3": "2001:660:4406:482:5::c",
-      "kavlan-4": "2001:660:4406:490:5::c",
-      "kavlan-5": "2001:660:4406:491:5::c",
-      "kavlan-6": "2001:660:4406:492:5::c",
-      "kavlan-7": "2001:660:4406:493:5::c",
-      "kavlan-8": "2001:660:4406:494:5::c",
-      "kavlan-9": "2001:660:4406:495:5::c"
+      "kavlan-1": "2001:660:4406:480:5:0::c",
+      "kavlan-11": "2001:660:4406:1a0:405:0::c",
+      "kavlan-12": "2001:660:4406:2a0:405:0::c",
+      "kavlan-13": "2001:660:4406:4a0:405:0::c",
+      "kavlan-14": "2001:660:4406:5a0:405:0::c",
+      "kavlan-16": "2001:660:4406:7a0:405:0::c",
+      "kavlan-18": "2001:660:4406:8a0:405:0::c",
+      "kavlan-2": "2001:660:4406:481:5:0::c",
+      "kavlan-20": "2001:660:4406:3a0:405:0::c",
+      "kavlan-21": "2001:660:4406:6a0:405:0::c",
+      "kavlan-3": "2001:660:4406:482:5:0::c",
+      "kavlan-4": "2001:660:4406:490:5:0::c",
+      "kavlan-5": "2001:660:4406:491:5:0::c",
+      "kavlan-6": "2001:660:4406:492:5:0::c",
+      "kavlan-7": "2001:660:4406:493:5:0::c",
+      "kavlan-8": "2001:660:4406:494:5:0::c",
+      "kavlan-9": "2001:660:4406:495:5:0::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.12",
-      "ip6": "2001:660:4406:400:5::c",
+      "ip6": "2001:660:4406:400:5:0::c",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:3c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-13.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-13.json
index 639de8e83fc..4f01bf80021 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-13.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::d",
-      "kavlan-11": "2001:660:4406:1a0:405::d",
-      "kavlan-12": "2001:660:4406:2a0:405::d",
-      "kavlan-13": "2001:660:4406:4a0:405::d",
-      "kavlan-14": "2001:660:4406:5a0:405::d",
-      "kavlan-16": "2001:660:4406:7a0:405::d",
-      "kavlan-18": "2001:660:4406:8a0:405::d",
-      "kavlan-2": "2001:660:4406:481:5::d",
-      "kavlan-20": "2001:660:4406:3a0:405::d",
-      "kavlan-21": "2001:660:4406:6a0:405::d",
-      "kavlan-3": "2001:660:4406:482:5::d",
-      "kavlan-4": "2001:660:4406:490:5::d",
-      "kavlan-5": "2001:660:4406:491:5::d",
-      "kavlan-6": "2001:660:4406:492:5::d",
-      "kavlan-7": "2001:660:4406:493:5::d",
-      "kavlan-8": "2001:660:4406:494:5::d",
-      "kavlan-9": "2001:660:4406:495:5::d"
+      "kavlan-1": "2001:660:4406:480:5:0::d",
+      "kavlan-11": "2001:660:4406:1a0:405:0::d",
+      "kavlan-12": "2001:660:4406:2a0:405:0::d",
+      "kavlan-13": "2001:660:4406:4a0:405:0::d",
+      "kavlan-14": "2001:660:4406:5a0:405:0::d",
+      "kavlan-16": "2001:660:4406:7a0:405:0::d",
+      "kavlan-18": "2001:660:4406:8a0:405:0::d",
+      "kavlan-2": "2001:660:4406:481:5:0::d",
+      "kavlan-20": "2001:660:4406:3a0:405:0::d",
+      "kavlan-21": "2001:660:4406:6a0:405:0::d",
+      "kavlan-3": "2001:660:4406:482:5:0::d",
+      "kavlan-4": "2001:660:4406:490:5:0::d",
+      "kavlan-5": "2001:660:4406:491:5:0::d",
+      "kavlan-6": "2001:660:4406:492:5:0::d",
+      "kavlan-7": "2001:660:4406:493:5:0::d",
+      "kavlan-8": "2001:660:4406:494:5:0::d",
+      "kavlan-9": "2001:660:4406:495:5:0::d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.13",
-      "ip6": "2001:660:4406:400:5::d",
+      "ip6": "2001:660:4406:400:5:0::d",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:b0",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-14.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-14.json
index 0a36ce757f3..0e94130e9a3 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-14.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::e",
-      "kavlan-11": "2001:660:4406:1a0:405::e",
-      "kavlan-12": "2001:660:4406:2a0:405::e",
-      "kavlan-13": "2001:660:4406:4a0:405::e",
-      "kavlan-14": "2001:660:4406:5a0:405::e",
-      "kavlan-16": "2001:660:4406:7a0:405::e",
-      "kavlan-18": "2001:660:4406:8a0:405::e",
-      "kavlan-2": "2001:660:4406:481:5::e",
-      "kavlan-20": "2001:660:4406:3a0:405::e",
-      "kavlan-21": "2001:660:4406:6a0:405::e",
-      "kavlan-3": "2001:660:4406:482:5::e",
-      "kavlan-4": "2001:660:4406:490:5::e",
-      "kavlan-5": "2001:660:4406:491:5::e",
-      "kavlan-6": "2001:660:4406:492:5::e",
-      "kavlan-7": "2001:660:4406:493:5::e",
-      "kavlan-8": "2001:660:4406:494:5::e",
-      "kavlan-9": "2001:660:4406:495:5::e"
+      "kavlan-1": "2001:660:4406:480:5:0::e",
+      "kavlan-11": "2001:660:4406:1a0:405:0::e",
+      "kavlan-12": "2001:660:4406:2a0:405:0::e",
+      "kavlan-13": "2001:660:4406:4a0:405:0::e",
+      "kavlan-14": "2001:660:4406:5a0:405:0::e",
+      "kavlan-16": "2001:660:4406:7a0:405:0::e",
+      "kavlan-18": "2001:660:4406:8a0:405:0::e",
+      "kavlan-2": "2001:660:4406:481:5:0::e",
+      "kavlan-20": "2001:660:4406:3a0:405:0::e",
+      "kavlan-21": "2001:660:4406:6a0:405:0::e",
+      "kavlan-3": "2001:660:4406:482:5:0::e",
+      "kavlan-4": "2001:660:4406:490:5:0::e",
+      "kavlan-5": "2001:660:4406:491:5:0::e",
+      "kavlan-6": "2001:660:4406:492:5:0::e",
+      "kavlan-7": "2001:660:4406:493:5:0::e",
+      "kavlan-8": "2001:660:4406:494:5:0::e",
+      "kavlan-9": "2001:660:4406:495:5:0::e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.14",
-      "ip6": "2001:660:4406:400:5::e",
+      "ip6": "2001:660:4406:400:5:0::e",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:54",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-15.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-15.json
index dc5353d4714..ddd615c1f16 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-15.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::f",
-      "kavlan-11": "2001:660:4406:1a0:405::f",
-      "kavlan-12": "2001:660:4406:2a0:405::f",
-      "kavlan-13": "2001:660:4406:4a0:405::f",
-      "kavlan-14": "2001:660:4406:5a0:405::f",
-      "kavlan-16": "2001:660:4406:7a0:405::f",
-      "kavlan-18": "2001:660:4406:8a0:405::f",
-      "kavlan-2": "2001:660:4406:481:5::f",
-      "kavlan-20": "2001:660:4406:3a0:405::f",
-      "kavlan-21": "2001:660:4406:6a0:405::f",
-      "kavlan-3": "2001:660:4406:482:5::f",
-      "kavlan-4": "2001:660:4406:490:5::f",
-      "kavlan-5": "2001:660:4406:491:5::f",
-      "kavlan-6": "2001:660:4406:492:5::f",
-      "kavlan-7": "2001:660:4406:493:5::f",
-      "kavlan-8": "2001:660:4406:494:5::f",
-      "kavlan-9": "2001:660:4406:495:5::f"
+      "kavlan-1": "2001:660:4406:480:5:0::f",
+      "kavlan-11": "2001:660:4406:1a0:405:0::f",
+      "kavlan-12": "2001:660:4406:2a0:405:0::f",
+      "kavlan-13": "2001:660:4406:4a0:405:0::f",
+      "kavlan-14": "2001:660:4406:5a0:405:0::f",
+      "kavlan-16": "2001:660:4406:7a0:405:0::f",
+      "kavlan-18": "2001:660:4406:8a0:405:0::f",
+      "kavlan-2": "2001:660:4406:481:5:0::f",
+      "kavlan-20": "2001:660:4406:3a0:405:0::f",
+      "kavlan-21": "2001:660:4406:6a0:405:0::f",
+      "kavlan-3": "2001:660:4406:482:5:0::f",
+      "kavlan-4": "2001:660:4406:490:5:0::f",
+      "kavlan-5": "2001:660:4406:491:5:0::f",
+      "kavlan-6": "2001:660:4406:492:5:0::f",
+      "kavlan-7": "2001:660:4406:493:5:0::f",
+      "kavlan-8": "2001:660:4406:494:5:0::f",
+      "kavlan-9": "2001:660:4406:495:5:0::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.15",
-      "ip6": "2001:660:4406:400:5::f",
+      "ip6": "2001:660:4406:400:5:0::f",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:5c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-16.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-16.json
index 67345dd3a11..79b647e9ab1 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-16.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::10",
-      "kavlan-11": "2001:660:4406:1a0:405::10",
-      "kavlan-12": "2001:660:4406:2a0:405::10",
-      "kavlan-13": "2001:660:4406:4a0:405::10",
-      "kavlan-14": "2001:660:4406:5a0:405::10",
-      "kavlan-16": "2001:660:4406:7a0:405::10",
-      "kavlan-18": "2001:660:4406:8a0:405::10",
-      "kavlan-2": "2001:660:4406:481:5::10",
-      "kavlan-20": "2001:660:4406:3a0:405::10",
-      "kavlan-21": "2001:660:4406:6a0:405::10",
-      "kavlan-3": "2001:660:4406:482:5::10",
-      "kavlan-4": "2001:660:4406:490:5::10",
-      "kavlan-5": "2001:660:4406:491:5::10",
-      "kavlan-6": "2001:660:4406:492:5::10",
-      "kavlan-7": "2001:660:4406:493:5::10",
-      "kavlan-8": "2001:660:4406:494:5::10",
-      "kavlan-9": "2001:660:4406:495:5::10"
+      "kavlan-1": "2001:660:4406:480:5:0::10",
+      "kavlan-11": "2001:660:4406:1a0:405:0::10",
+      "kavlan-12": "2001:660:4406:2a0:405:0::10",
+      "kavlan-13": "2001:660:4406:4a0:405:0::10",
+      "kavlan-14": "2001:660:4406:5a0:405:0::10",
+      "kavlan-16": "2001:660:4406:7a0:405:0::10",
+      "kavlan-18": "2001:660:4406:8a0:405:0::10",
+      "kavlan-2": "2001:660:4406:481:5:0::10",
+      "kavlan-20": "2001:660:4406:3a0:405:0::10",
+      "kavlan-21": "2001:660:4406:6a0:405:0::10",
+      "kavlan-3": "2001:660:4406:482:5:0::10",
+      "kavlan-4": "2001:660:4406:490:5:0::10",
+      "kavlan-5": "2001:660:4406:491:5:0::10",
+      "kavlan-6": "2001:660:4406:492:5:0::10",
+      "kavlan-7": "2001:660:4406:493:5:0::10",
+      "kavlan-8": "2001:660:4406:494:5:0::10",
+      "kavlan-9": "2001:660:4406:495:5:0::10"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.16",
-      "ip6": "2001:660:4406:400:5::10",
+      "ip6": "2001:660:4406:400:5:0::10",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:60",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-17.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-17.json
index 6bf6a757433..1bb62e3f3a7 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-17.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::11",
-      "kavlan-11": "2001:660:4406:1a0:405::11",
-      "kavlan-12": "2001:660:4406:2a0:405::11",
-      "kavlan-13": "2001:660:4406:4a0:405::11",
-      "kavlan-14": "2001:660:4406:5a0:405::11",
-      "kavlan-16": "2001:660:4406:7a0:405::11",
-      "kavlan-18": "2001:660:4406:8a0:405::11",
-      "kavlan-2": "2001:660:4406:481:5::11",
-      "kavlan-20": "2001:660:4406:3a0:405::11",
-      "kavlan-21": "2001:660:4406:6a0:405::11",
-      "kavlan-3": "2001:660:4406:482:5::11",
-      "kavlan-4": "2001:660:4406:490:5::11",
-      "kavlan-5": "2001:660:4406:491:5::11",
-      "kavlan-6": "2001:660:4406:492:5::11",
-      "kavlan-7": "2001:660:4406:493:5::11",
-      "kavlan-8": "2001:660:4406:494:5::11",
-      "kavlan-9": "2001:660:4406:495:5::11"
+      "kavlan-1": "2001:660:4406:480:5:0::11",
+      "kavlan-11": "2001:660:4406:1a0:405:0::11",
+      "kavlan-12": "2001:660:4406:2a0:405:0::11",
+      "kavlan-13": "2001:660:4406:4a0:405:0::11",
+      "kavlan-14": "2001:660:4406:5a0:405:0::11",
+      "kavlan-16": "2001:660:4406:7a0:405:0::11",
+      "kavlan-18": "2001:660:4406:8a0:405:0::11",
+      "kavlan-2": "2001:660:4406:481:5:0::11",
+      "kavlan-20": "2001:660:4406:3a0:405:0::11",
+      "kavlan-21": "2001:660:4406:6a0:405:0::11",
+      "kavlan-3": "2001:660:4406:482:5:0::11",
+      "kavlan-4": "2001:660:4406:490:5:0::11",
+      "kavlan-5": "2001:660:4406:491:5:0::11",
+      "kavlan-6": "2001:660:4406:492:5:0::11",
+      "kavlan-7": "2001:660:4406:493:5:0::11",
+      "kavlan-8": "2001:660:4406:494:5:0::11",
+      "kavlan-9": "2001:660:4406:495:5:0::11"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.17",
-      "ip6": "2001:660:4406:400:5::11",
+      "ip6": "2001:660:4406:400:5:0::11",
       "kavlan": true,
       "mac": "a0:36:9f:d2:a2:5c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-18.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-18.json
index 4e6db8298d9..2c2bec831d1 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-18.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::12",
-      "kavlan-11": "2001:660:4406:1a0:405::12",
-      "kavlan-12": "2001:660:4406:2a0:405::12",
-      "kavlan-13": "2001:660:4406:4a0:405::12",
-      "kavlan-14": "2001:660:4406:5a0:405::12",
-      "kavlan-16": "2001:660:4406:7a0:405::12",
-      "kavlan-18": "2001:660:4406:8a0:405::12",
-      "kavlan-2": "2001:660:4406:481:5::12",
-      "kavlan-20": "2001:660:4406:3a0:405::12",
-      "kavlan-21": "2001:660:4406:6a0:405::12",
-      "kavlan-3": "2001:660:4406:482:5::12",
-      "kavlan-4": "2001:660:4406:490:5::12",
-      "kavlan-5": "2001:660:4406:491:5::12",
-      "kavlan-6": "2001:660:4406:492:5::12",
-      "kavlan-7": "2001:660:4406:493:5::12",
-      "kavlan-8": "2001:660:4406:494:5::12",
-      "kavlan-9": "2001:660:4406:495:5::12"
+      "kavlan-1": "2001:660:4406:480:5:0::12",
+      "kavlan-11": "2001:660:4406:1a0:405:0::12",
+      "kavlan-12": "2001:660:4406:2a0:405:0::12",
+      "kavlan-13": "2001:660:4406:4a0:405:0::12",
+      "kavlan-14": "2001:660:4406:5a0:405:0::12",
+      "kavlan-16": "2001:660:4406:7a0:405:0::12",
+      "kavlan-18": "2001:660:4406:8a0:405:0::12",
+      "kavlan-2": "2001:660:4406:481:5:0::12",
+      "kavlan-20": "2001:660:4406:3a0:405:0::12",
+      "kavlan-21": "2001:660:4406:6a0:405:0::12",
+      "kavlan-3": "2001:660:4406:482:5:0::12",
+      "kavlan-4": "2001:660:4406:490:5:0::12",
+      "kavlan-5": "2001:660:4406:491:5:0::12",
+      "kavlan-6": "2001:660:4406:492:5:0::12",
+      "kavlan-7": "2001:660:4406:493:5:0::12",
+      "kavlan-8": "2001:660:4406:494:5:0::12",
+      "kavlan-9": "2001:660:4406:495:5:0::12"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.18",
-      "ip6": "2001:660:4406:400:5::12",
+      "ip6": "2001:660:4406:400:5:0::12",
       "kavlan": true,
       "mac": "a0:36:9f:d2:a2:50",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-19.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-19.json
index baaf5d9ec88..3b26707e2b2 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-19.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::13",
-      "kavlan-11": "2001:660:4406:1a0:405::13",
-      "kavlan-12": "2001:660:4406:2a0:405::13",
-      "kavlan-13": "2001:660:4406:4a0:405::13",
-      "kavlan-14": "2001:660:4406:5a0:405::13",
-      "kavlan-16": "2001:660:4406:7a0:405::13",
-      "kavlan-18": "2001:660:4406:8a0:405::13",
-      "kavlan-2": "2001:660:4406:481:5::13",
-      "kavlan-20": "2001:660:4406:3a0:405::13",
-      "kavlan-21": "2001:660:4406:6a0:405::13",
-      "kavlan-3": "2001:660:4406:482:5::13",
-      "kavlan-4": "2001:660:4406:490:5::13",
-      "kavlan-5": "2001:660:4406:491:5::13",
-      "kavlan-6": "2001:660:4406:492:5::13",
-      "kavlan-7": "2001:660:4406:493:5::13",
-      "kavlan-8": "2001:660:4406:494:5::13",
-      "kavlan-9": "2001:660:4406:495:5::13"
+      "kavlan-1": "2001:660:4406:480:5:0::13",
+      "kavlan-11": "2001:660:4406:1a0:405:0::13",
+      "kavlan-12": "2001:660:4406:2a0:405:0::13",
+      "kavlan-13": "2001:660:4406:4a0:405:0::13",
+      "kavlan-14": "2001:660:4406:5a0:405:0::13",
+      "kavlan-16": "2001:660:4406:7a0:405:0::13",
+      "kavlan-18": "2001:660:4406:8a0:405:0::13",
+      "kavlan-2": "2001:660:4406:481:5:0::13",
+      "kavlan-20": "2001:660:4406:3a0:405:0::13",
+      "kavlan-21": "2001:660:4406:6a0:405:0::13",
+      "kavlan-3": "2001:660:4406:482:5:0::13",
+      "kavlan-4": "2001:660:4406:490:5:0::13",
+      "kavlan-5": "2001:660:4406:491:5:0::13",
+      "kavlan-6": "2001:660:4406:492:5:0::13",
+      "kavlan-7": "2001:660:4406:493:5:0::13",
+      "kavlan-8": "2001:660:4406:494:5:0::13",
+      "kavlan-9": "2001:660:4406:495:5:0::13"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.19",
-      "ip6": "2001:660:4406:400:5::13",
+      "ip6": "2001:660:4406:400:5:0::13",
       "kavlan": true,
       "mac": "a0:36:9f:d2:ca:58",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-2.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-2.json
index 65b7db3bd35..cd2cadb1174 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-2.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::2",
-      "kavlan-11": "2001:660:4406:1a0:405::2",
-      "kavlan-12": "2001:660:4406:2a0:405::2",
-      "kavlan-13": "2001:660:4406:4a0:405::2",
-      "kavlan-14": "2001:660:4406:5a0:405::2",
-      "kavlan-16": "2001:660:4406:7a0:405::2",
-      "kavlan-18": "2001:660:4406:8a0:405::2",
-      "kavlan-2": "2001:660:4406:481:5::2",
-      "kavlan-20": "2001:660:4406:3a0:405::2",
-      "kavlan-21": "2001:660:4406:6a0:405::2",
-      "kavlan-3": "2001:660:4406:482:5::2",
-      "kavlan-4": "2001:660:4406:490:5::2",
-      "kavlan-5": "2001:660:4406:491:5::2",
-      "kavlan-6": "2001:660:4406:492:5::2",
-      "kavlan-7": "2001:660:4406:493:5::2",
-      "kavlan-8": "2001:660:4406:494:5::2",
-      "kavlan-9": "2001:660:4406:495:5::2"
+      "kavlan-1": "2001:660:4406:480:5:0::2",
+      "kavlan-11": "2001:660:4406:1a0:405:0::2",
+      "kavlan-12": "2001:660:4406:2a0:405:0::2",
+      "kavlan-13": "2001:660:4406:4a0:405:0::2",
+      "kavlan-14": "2001:660:4406:5a0:405:0::2",
+      "kavlan-16": "2001:660:4406:7a0:405:0::2",
+      "kavlan-18": "2001:660:4406:8a0:405:0::2",
+      "kavlan-2": "2001:660:4406:481:5:0::2",
+      "kavlan-20": "2001:660:4406:3a0:405:0::2",
+      "kavlan-21": "2001:660:4406:6a0:405:0::2",
+      "kavlan-3": "2001:660:4406:482:5:0::2",
+      "kavlan-4": "2001:660:4406:490:5:0::2",
+      "kavlan-5": "2001:660:4406:491:5:0::2",
+      "kavlan-6": "2001:660:4406:492:5:0::2",
+      "kavlan-7": "2001:660:4406:493:5:0::2",
+      "kavlan-8": "2001:660:4406:494:5:0::2",
+      "kavlan-9": "2001:660:4406:495:5:0::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.2",
-      "ip6": "2001:660:4406:400:5::2",
+      "ip6": "2001:660:4406:400:5:0::2",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c8:8c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-20.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-20.json
index 795b1ee760a..ef5fc3fb7a3 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-20.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::14",
-      "kavlan-11": "2001:660:4406:1a0:405::14",
-      "kavlan-12": "2001:660:4406:2a0:405::14",
-      "kavlan-13": "2001:660:4406:4a0:405::14",
-      "kavlan-14": "2001:660:4406:5a0:405::14",
-      "kavlan-16": "2001:660:4406:7a0:405::14",
-      "kavlan-18": "2001:660:4406:8a0:405::14",
-      "kavlan-2": "2001:660:4406:481:5::14",
-      "kavlan-20": "2001:660:4406:3a0:405::14",
-      "kavlan-21": "2001:660:4406:6a0:405::14",
-      "kavlan-3": "2001:660:4406:482:5::14",
-      "kavlan-4": "2001:660:4406:490:5::14",
-      "kavlan-5": "2001:660:4406:491:5::14",
-      "kavlan-6": "2001:660:4406:492:5::14",
-      "kavlan-7": "2001:660:4406:493:5::14",
-      "kavlan-8": "2001:660:4406:494:5::14",
-      "kavlan-9": "2001:660:4406:495:5::14"
+      "kavlan-1": "2001:660:4406:480:5:0::14",
+      "kavlan-11": "2001:660:4406:1a0:405:0::14",
+      "kavlan-12": "2001:660:4406:2a0:405:0::14",
+      "kavlan-13": "2001:660:4406:4a0:405:0::14",
+      "kavlan-14": "2001:660:4406:5a0:405:0::14",
+      "kavlan-16": "2001:660:4406:7a0:405:0::14",
+      "kavlan-18": "2001:660:4406:8a0:405:0::14",
+      "kavlan-2": "2001:660:4406:481:5:0::14",
+      "kavlan-20": "2001:660:4406:3a0:405:0::14",
+      "kavlan-21": "2001:660:4406:6a0:405:0::14",
+      "kavlan-3": "2001:660:4406:482:5:0::14",
+      "kavlan-4": "2001:660:4406:490:5:0::14",
+      "kavlan-5": "2001:660:4406:491:5:0::14",
+      "kavlan-6": "2001:660:4406:492:5:0::14",
+      "kavlan-7": "2001:660:4406:493:5:0::14",
+      "kavlan-8": "2001:660:4406:494:5:0::14",
+      "kavlan-9": "2001:660:4406:495:5:0::14"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.20",
-      "ip6": "2001:660:4406:400:5::14",
+      "ip6": "2001:660:4406:400:5:0::14",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:4c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-21.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-21.json
index dff9782d35e..bb6f5cc5184 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-21.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::15",
-      "kavlan-11": "2001:660:4406:1a0:405::15",
-      "kavlan-12": "2001:660:4406:2a0:405::15",
-      "kavlan-13": "2001:660:4406:4a0:405::15",
-      "kavlan-14": "2001:660:4406:5a0:405::15",
-      "kavlan-16": "2001:660:4406:7a0:405::15",
-      "kavlan-18": "2001:660:4406:8a0:405::15",
-      "kavlan-2": "2001:660:4406:481:5::15",
-      "kavlan-20": "2001:660:4406:3a0:405::15",
-      "kavlan-21": "2001:660:4406:6a0:405::15",
-      "kavlan-3": "2001:660:4406:482:5::15",
-      "kavlan-4": "2001:660:4406:490:5::15",
-      "kavlan-5": "2001:660:4406:491:5::15",
-      "kavlan-6": "2001:660:4406:492:5::15",
-      "kavlan-7": "2001:660:4406:493:5::15",
-      "kavlan-8": "2001:660:4406:494:5::15",
-      "kavlan-9": "2001:660:4406:495:5::15"
+      "kavlan-1": "2001:660:4406:480:5:0::15",
+      "kavlan-11": "2001:660:4406:1a0:405:0::15",
+      "kavlan-12": "2001:660:4406:2a0:405:0::15",
+      "kavlan-13": "2001:660:4406:4a0:405:0::15",
+      "kavlan-14": "2001:660:4406:5a0:405:0::15",
+      "kavlan-16": "2001:660:4406:7a0:405:0::15",
+      "kavlan-18": "2001:660:4406:8a0:405:0::15",
+      "kavlan-2": "2001:660:4406:481:5:0::15",
+      "kavlan-20": "2001:660:4406:3a0:405:0::15",
+      "kavlan-21": "2001:660:4406:6a0:405:0::15",
+      "kavlan-3": "2001:660:4406:482:5:0::15",
+      "kavlan-4": "2001:660:4406:490:5:0::15",
+      "kavlan-5": "2001:660:4406:491:5:0::15",
+      "kavlan-6": "2001:660:4406:492:5:0::15",
+      "kavlan-7": "2001:660:4406:493:5:0::15",
+      "kavlan-8": "2001:660:4406:494:5:0::15",
+      "kavlan-9": "2001:660:4406:495:5:0::15"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.21",
-      "ip6": "2001:660:4406:400:5::15",
+      "ip6": "2001:660:4406:400:5:0::15",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:18",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-22.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-22.json
index b7194c9ee72..9033dba889f 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-22.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::16",
-      "kavlan-11": "2001:660:4406:1a0:405::16",
-      "kavlan-12": "2001:660:4406:2a0:405::16",
-      "kavlan-13": "2001:660:4406:4a0:405::16",
-      "kavlan-14": "2001:660:4406:5a0:405::16",
-      "kavlan-16": "2001:660:4406:7a0:405::16",
-      "kavlan-18": "2001:660:4406:8a0:405::16",
-      "kavlan-2": "2001:660:4406:481:5::16",
-      "kavlan-20": "2001:660:4406:3a0:405::16",
-      "kavlan-21": "2001:660:4406:6a0:405::16",
-      "kavlan-3": "2001:660:4406:482:5::16",
-      "kavlan-4": "2001:660:4406:490:5::16",
-      "kavlan-5": "2001:660:4406:491:5::16",
-      "kavlan-6": "2001:660:4406:492:5::16",
-      "kavlan-7": "2001:660:4406:493:5::16",
-      "kavlan-8": "2001:660:4406:494:5::16",
-      "kavlan-9": "2001:660:4406:495:5::16"
+      "kavlan-1": "2001:660:4406:480:5:0::16",
+      "kavlan-11": "2001:660:4406:1a0:405:0::16",
+      "kavlan-12": "2001:660:4406:2a0:405:0::16",
+      "kavlan-13": "2001:660:4406:4a0:405:0::16",
+      "kavlan-14": "2001:660:4406:5a0:405:0::16",
+      "kavlan-16": "2001:660:4406:7a0:405:0::16",
+      "kavlan-18": "2001:660:4406:8a0:405:0::16",
+      "kavlan-2": "2001:660:4406:481:5:0::16",
+      "kavlan-20": "2001:660:4406:3a0:405:0::16",
+      "kavlan-21": "2001:660:4406:6a0:405:0::16",
+      "kavlan-3": "2001:660:4406:482:5:0::16",
+      "kavlan-4": "2001:660:4406:490:5:0::16",
+      "kavlan-5": "2001:660:4406:491:5:0::16",
+      "kavlan-6": "2001:660:4406:492:5:0::16",
+      "kavlan-7": "2001:660:4406:493:5:0::16",
+      "kavlan-8": "2001:660:4406:494:5:0::16",
+      "kavlan-9": "2001:660:4406:495:5:0::16"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.22",
-      "ip6": "2001:660:4406:400:5::16",
+      "ip6": "2001:660:4406:400:5:0::16",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:48",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-23.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-23.json
index 2902e24e3d7..ae239dcab9e 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-23.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::17",
-      "kavlan-11": "2001:660:4406:1a0:405::17",
-      "kavlan-12": "2001:660:4406:2a0:405::17",
-      "kavlan-13": "2001:660:4406:4a0:405::17",
-      "kavlan-14": "2001:660:4406:5a0:405::17",
-      "kavlan-16": "2001:660:4406:7a0:405::17",
-      "kavlan-18": "2001:660:4406:8a0:405::17",
-      "kavlan-2": "2001:660:4406:481:5::17",
-      "kavlan-20": "2001:660:4406:3a0:405::17",
-      "kavlan-21": "2001:660:4406:6a0:405::17",
-      "kavlan-3": "2001:660:4406:482:5::17",
-      "kavlan-4": "2001:660:4406:490:5::17",
-      "kavlan-5": "2001:660:4406:491:5::17",
-      "kavlan-6": "2001:660:4406:492:5::17",
-      "kavlan-7": "2001:660:4406:493:5::17",
-      "kavlan-8": "2001:660:4406:494:5::17",
-      "kavlan-9": "2001:660:4406:495:5::17"
+      "kavlan-1": "2001:660:4406:480:5:0::17",
+      "kavlan-11": "2001:660:4406:1a0:405:0::17",
+      "kavlan-12": "2001:660:4406:2a0:405:0::17",
+      "kavlan-13": "2001:660:4406:4a0:405:0::17",
+      "kavlan-14": "2001:660:4406:5a0:405:0::17",
+      "kavlan-16": "2001:660:4406:7a0:405:0::17",
+      "kavlan-18": "2001:660:4406:8a0:405:0::17",
+      "kavlan-2": "2001:660:4406:481:5:0::17",
+      "kavlan-20": "2001:660:4406:3a0:405:0::17",
+      "kavlan-21": "2001:660:4406:6a0:405:0::17",
+      "kavlan-3": "2001:660:4406:482:5:0::17",
+      "kavlan-4": "2001:660:4406:490:5:0::17",
+      "kavlan-5": "2001:660:4406:491:5:0::17",
+      "kavlan-6": "2001:660:4406:492:5:0::17",
+      "kavlan-7": "2001:660:4406:493:5:0::17",
+      "kavlan-8": "2001:660:4406:494:5:0::17",
+      "kavlan-9": "2001:660:4406:495:5:0::17"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.23",
-      "ip6": "2001:660:4406:400:5::17",
+      "ip6": "2001:660:4406:400:5:0::17",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:44",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-3.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-3.json
index cb7878a24e5..559b14b0267 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-3.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::3",
-      "kavlan-11": "2001:660:4406:1a0:405::3",
-      "kavlan-12": "2001:660:4406:2a0:405::3",
-      "kavlan-13": "2001:660:4406:4a0:405::3",
-      "kavlan-14": "2001:660:4406:5a0:405::3",
-      "kavlan-16": "2001:660:4406:7a0:405::3",
-      "kavlan-18": "2001:660:4406:8a0:405::3",
-      "kavlan-2": "2001:660:4406:481:5::3",
-      "kavlan-20": "2001:660:4406:3a0:405::3",
-      "kavlan-21": "2001:660:4406:6a0:405::3",
-      "kavlan-3": "2001:660:4406:482:5::3",
-      "kavlan-4": "2001:660:4406:490:5::3",
-      "kavlan-5": "2001:660:4406:491:5::3",
-      "kavlan-6": "2001:660:4406:492:5::3",
-      "kavlan-7": "2001:660:4406:493:5::3",
-      "kavlan-8": "2001:660:4406:494:5::3",
-      "kavlan-9": "2001:660:4406:495:5::3"
+      "kavlan-1": "2001:660:4406:480:5:0::3",
+      "kavlan-11": "2001:660:4406:1a0:405:0::3",
+      "kavlan-12": "2001:660:4406:2a0:405:0::3",
+      "kavlan-13": "2001:660:4406:4a0:405:0::3",
+      "kavlan-14": "2001:660:4406:5a0:405:0::3",
+      "kavlan-16": "2001:660:4406:7a0:405:0::3",
+      "kavlan-18": "2001:660:4406:8a0:405:0::3",
+      "kavlan-2": "2001:660:4406:481:5:0::3",
+      "kavlan-20": "2001:660:4406:3a0:405:0::3",
+      "kavlan-21": "2001:660:4406:6a0:405:0::3",
+      "kavlan-3": "2001:660:4406:482:5:0::3",
+      "kavlan-4": "2001:660:4406:490:5:0::3",
+      "kavlan-5": "2001:660:4406:491:5:0::3",
+      "kavlan-6": "2001:660:4406:492:5:0::3",
+      "kavlan-7": "2001:660:4406:493:5:0::3",
+      "kavlan-8": "2001:660:4406:494:5:0::3",
+      "kavlan-9": "2001:660:4406:495:5:0::3"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.3",
-      "ip6": "2001:660:4406:400:5::3",
+      "ip6": "2001:660:4406:400:5:0::3",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c6:94",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-4.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-4.json
index 64bc2a65e87..9841266192d 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-4.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::4",
-      "kavlan-11": "2001:660:4406:1a0:405::4",
-      "kavlan-12": "2001:660:4406:2a0:405::4",
-      "kavlan-13": "2001:660:4406:4a0:405::4",
-      "kavlan-14": "2001:660:4406:5a0:405::4",
-      "kavlan-16": "2001:660:4406:7a0:405::4",
-      "kavlan-18": "2001:660:4406:8a0:405::4",
-      "kavlan-2": "2001:660:4406:481:5::4",
-      "kavlan-20": "2001:660:4406:3a0:405::4",
-      "kavlan-21": "2001:660:4406:6a0:405::4",
-      "kavlan-3": "2001:660:4406:482:5::4",
-      "kavlan-4": "2001:660:4406:490:5::4",
-      "kavlan-5": "2001:660:4406:491:5::4",
-      "kavlan-6": "2001:660:4406:492:5::4",
-      "kavlan-7": "2001:660:4406:493:5::4",
-      "kavlan-8": "2001:660:4406:494:5::4",
-      "kavlan-9": "2001:660:4406:495:5::4"
+      "kavlan-1": "2001:660:4406:480:5:0::4",
+      "kavlan-11": "2001:660:4406:1a0:405:0::4",
+      "kavlan-12": "2001:660:4406:2a0:405:0::4",
+      "kavlan-13": "2001:660:4406:4a0:405:0::4",
+      "kavlan-14": "2001:660:4406:5a0:405:0::4",
+      "kavlan-16": "2001:660:4406:7a0:405:0::4",
+      "kavlan-18": "2001:660:4406:8a0:405:0::4",
+      "kavlan-2": "2001:660:4406:481:5:0::4",
+      "kavlan-20": "2001:660:4406:3a0:405:0::4",
+      "kavlan-21": "2001:660:4406:6a0:405:0::4",
+      "kavlan-3": "2001:660:4406:482:5:0::4",
+      "kavlan-4": "2001:660:4406:490:5:0::4",
+      "kavlan-5": "2001:660:4406:491:5:0::4",
+      "kavlan-6": "2001:660:4406:492:5:0::4",
+      "kavlan-7": "2001:660:4406:493:5:0::4",
+      "kavlan-8": "2001:660:4406:494:5:0::4",
+      "kavlan-9": "2001:660:4406:495:5:0::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.4",
-      "ip6": "2001:660:4406:400:5::4",
+      "ip6": "2001:660:4406:400:5:0::4",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:5c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-5.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-5.json
index 67c148571ee..db7f70851c2 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-5.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::5",
-      "kavlan-11": "2001:660:4406:1a0:405::5",
-      "kavlan-12": "2001:660:4406:2a0:405::5",
-      "kavlan-13": "2001:660:4406:4a0:405::5",
-      "kavlan-14": "2001:660:4406:5a0:405::5",
-      "kavlan-16": "2001:660:4406:7a0:405::5",
-      "kavlan-18": "2001:660:4406:8a0:405::5",
-      "kavlan-2": "2001:660:4406:481:5::5",
-      "kavlan-20": "2001:660:4406:3a0:405::5",
-      "kavlan-21": "2001:660:4406:6a0:405::5",
-      "kavlan-3": "2001:660:4406:482:5::5",
-      "kavlan-4": "2001:660:4406:490:5::5",
-      "kavlan-5": "2001:660:4406:491:5::5",
-      "kavlan-6": "2001:660:4406:492:5::5",
-      "kavlan-7": "2001:660:4406:493:5::5",
-      "kavlan-8": "2001:660:4406:494:5::5",
-      "kavlan-9": "2001:660:4406:495:5::5"
+      "kavlan-1": "2001:660:4406:480:5:0::5",
+      "kavlan-11": "2001:660:4406:1a0:405:0::5",
+      "kavlan-12": "2001:660:4406:2a0:405:0::5",
+      "kavlan-13": "2001:660:4406:4a0:405:0::5",
+      "kavlan-14": "2001:660:4406:5a0:405:0::5",
+      "kavlan-16": "2001:660:4406:7a0:405:0::5",
+      "kavlan-18": "2001:660:4406:8a0:405:0::5",
+      "kavlan-2": "2001:660:4406:481:5:0::5",
+      "kavlan-20": "2001:660:4406:3a0:405:0::5",
+      "kavlan-21": "2001:660:4406:6a0:405:0::5",
+      "kavlan-3": "2001:660:4406:482:5:0::5",
+      "kavlan-4": "2001:660:4406:490:5:0::5",
+      "kavlan-5": "2001:660:4406:491:5:0::5",
+      "kavlan-6": "2001:660:4406:492:5:0::5",
+      "kavlan-7": "2001:660:4406:493:5:0::5",
+      "kavlan-8": "2001:660:4406:494:5:0::5",
+      "kavlan-9": "2001:660:4406:495:5:0::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.5",
-      "ip6": "2001:660:4406:400:5::5",
+      "ip6": "2001:660:4406:400:5:0::5",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:38",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-6.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-6.json
index 0a532344a17..7333ad745c6 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-6.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::6",
-      "kavlan-11": "2001:660:4406:1a0:405::6",
-      "kavlan-12": "2001:660:4406:2a0:405::6",
-      "kavlan-13": "2001:660:4406:4a0:405::6",
-      "kavlan-14": "2001:660:4406:5a0:405::6",
-      "kavlan-16": "2001:660:4406:7a0:405::6",
-      "kavlan-18": "2001:660:4406:8a0:405::6",
-      "kavlan-2": "2001:660:4406:481:5::6",
-      "kavlan-20": "2001:660:4406:3a0:405::6",
-      "kavlan-21": "2001:660:4406:6a0:405::6",
-      "kavlan-3": "2001:660:4406:482:5::6",
-      "kavlan-4": "2001:660:4406:490:5::6",
-      "kavlan-5": "2001:660:4406:491:5::6",
-      "kavlan-6": "2001:660:4406:492:5::6",
-      "kavlan-7": "2001:660:4406:493:5::6",
-      "kavlan-8": "2001:660:4406:494:5::6",
-      "kavlan-9": "2001:660:4406:495:5::6"
+      "kavlan-1": "2001:660:4406:480:5:0::6",
+      "kavlan-11": "2001:660:4406:1a0:405:0::6",
+      "kavlan-12": "2001:660:4406:2a0:405:0::6",
+      "kavlan-13": "2001:660:4406:4a0:405:0::6",
+      "kavlan-14": "2001:660:4406:5a0:405:0::6",
+      "kavlan-16": "2001:660:4406:7a0:405:0::6",
+      "kavlan-18": "2001:660:4406:8a0:405:0::6",
+      "kavlan-2": "2001:660:4406:481:5:0::6",
+      "kavlan-20": "2001:660:4406:3a0:405:0::6",
+      "kavlan-21": "2001:660:4406:6a0:405:0::6",
+      "kavlan-3": "2001:660:4406:482:5:0::6",
+      "kavlan-4": "2001:660:4406:490:5:0::6",
+      "kavlan-5": "2001:660:4406:491:5:0::6",
+      "kavlan-6": "2001:660:4406:492:5:0::6",
+      "kavlan-7": "2001:660:4406:493:5:0::6",
+      "kavlan-8": "2001:660:4406:494:5:0::6",
+      "kavlan-9": "2001:660:4406:495:5:0::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.6",
-      "ip6": "2001:660:4406:400:5::6",
+      "ip6": "2001:660:4406:400:5:0::6",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:30",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-7.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-7.json
index 4ec3d3f6d2d..7307977d1bb 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-7.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::7",
-      "kavlan-11": "2001:660:4406:1a0:405::7",
-      "kavlan-12": "2001:660:4406:2a0:405::7",
-      "kavlan-13": "2001:660:4406:4a0:405::7",
-      "kavlan-14": "2001:660:4406:5a0:405::7",
-      "kavlan-16": "2001:660:4406:7a0:405::7",
-      "kavlan-18": "2001:660:4406:8a0:405::7",
-      "kavlan-2": "2001:660:4406:481:5::7",
-      "kavlan-20": "2001:660:4406:3a0:405::7",
-      "kavlan-21": "2001:660:4406:6a0:405::7",
-      "kavlan-3": "2001:660:4406:482:5::7",
-      "kavlan-4": "2001:660:4406:490:5::7",
-      "kavlan-5": "2001:660:4406:491:5::7",
-      "kavlan-6": "2001:660:4406:492:5::7",
-      "kavlan-7": "2001:660:4406:493:5::7",
-      "kavlan-8": "2001:660:4406:494:5::7",
-      "kavlan-9": "2001:660:4406:495:5::7"
+      "kavlan-1": "2001:660:4406:480:5:0::7",
+      "kavlan-11": "2001:660:4406:1a0:405:0::7",
+      "kavlan-12": "2001:660:4406:2a0:405:0::7",
+      "kavlan-13": "2001:660:4406:4a0:405:0::7",
+      "kavlan-14": "2001:660:4406:5a0:405:0::7",
+      "kavlan-16": "2001:660:4406:7a0:405:0::7",
+      "kavlan-18": "2001:660:4406:8a0:405:0::7",
+      "kavlan-2": "2001:660:4406:481:5:0::7",
+      "kavlan-20": "2001:660:4406:3a0:405:0::7",
+      "kavlan-21": "2001:660:4406:6a0:405:0::7",
+      "kavlan-3": "2001:660:4406:482:5:0::7",
+      "kavlan-4": "2001:660:4406:490:5:0::7",
+      "kavlan-5": "2001:660:4406:491:5:0::7",
+      "kavlan-6": "2001:660:4406:492:5:0::7",
+      "kavlan-7": "2001:660:4406:493:5:0::7",
+      "kavlan-8": "2001:660:4406:494:5:0::7",
+      "kavlan-9": "2001:660:4406:495:5:0::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.7",
-      "ip6": "2001:660:4406:400:5::7",
+      "ip6": "2001:660:4406:400:5:0::7",
       "kavlan": true,
       "mac": "a0:36:9f:d2:ca:60",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-8.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-8.json
index 7d7adce7e73..63039f90084 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-8.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::8",
-      "kavlan-11": "2001:660:4406:1a0:405::8",
-      "kavlan-12": "2001:660:4406:2a0:405::8",
-      "kavlan-13": "2001:660:4406:4a0:405::8",
-      "kavlan-14": "2001:660:4406:5a0:405::8",
-      "kavlan-16": "2001:660:4406:7a0:405::8",
-      "kavlan-18": "2001:660:4406:8a0:405::8",
-      "kavlan-2": "2001:660:4406:481:5::8",
-      "kavlan-20": "2001:660:4406:3a0:405::8",
-      "kavlan-21": "2001:660:4406:6a0:405::8",
-      "kavlan-3": "2001:660:4406:482:5::8",
-      "kavlan-4": "2001:660:4406:490:5::8",
-      "kavlan-5": "2001:660:4406:491:5::8",
-      "kavlan-6": "2001:660:4406:492:5::8",
-      "kavlan-7": "2001:660:4406:493:5::8",
-      "kavlan-8": "2001:660:4406:494:5::8",
-      "kavlan-9": "2001:660:4406:495:5::8"
+      "kavlan-1": "2001:660:4406:480:5:0::8",
+      "kavlan-11": "2001:660:4406:1a0:405:0::8",
+      "kavlan-12": "2001:660:4406:2a0:405:0::8",
+      "kavlan-13": "2001:660:4406:4a0:405:0::8",
+      "kavlan-14": "2001:660:4406:5a0:405:0::8",
+      "kavlan-16": "2001:660:4406:7a0:405:0::8",
+      "kavlan-18": "2001:660:4406:8a0:405:0::8",
+      "kavlan-2": "2001:660:4406:481:5:0::8",
+      "kavlan-20": "2001:660:4406:3a0:405:0::8",
+      "kavlan-21": "2001:660:4406:6a0:405:0::8",
+      "kavlan-3": "2001:660:4406:482:5:0::8",
+      "kavlan-4": "2001:660:4406:490:5:0::8",
+      "kavlan-5": "2001:660:4406:491:5:0::8",
+      "kavlan-6": "2001:660:4406:492:5:0::8",
+      "kavlan-7": "2001:660:4406:493:5:0::8",
+      "kavlan-8": "2001:660:4406:494:5:0::8",
+      "kavlan-9": "2001:660:4406:495:5:0::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.8",
-      "ip6": "2001:660:4406:400:5::8",
+      "ip6": "2001:660:4406:400:5:0::8",
       "kavlan": true,
       "mac": "a0:36:9f:d2:c2:b4",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-9.json b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-9.json
index b20c3d941d4..2d6e994b875 100644
--- a/data/grid5000/sites/lyon/clusters/nova/nodes/nova-9.json
+++ b/data/grid5000/sites/lyon/clusters/nova/nodes/nova-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:5::9",
-      "kavlan-11": "2001:660:4406:1a0:405::9",
-      "kavlan-12": "2001:660:4406:2a0:405::9",
-      "kavlan-13": "2001:660:4406:4a0:405::9",
-      "kavlan-14": "2001:660:4406:5a0:405::9",
-      "kavlan-16": "2001:660:4406:7a0:405::9",
-      "kavlan-18": "2001:660:4406:8a0:405::9",
-      "kavlan-2": "2001:660:4406:481:5::9",
-      "kavlan-20": "2001:660:4406:3a0:405::9",
-      "kavlan-21": "2001:660:4406:6a0:405::9",
-      "kavlan-3": "2001:660:4406:482:5::9",
-      "kavlan-4": "2001:660:4406:490:5::9",
-      "kavlan-5": "2001:660:4406:491:5::9",
-      "kavlan-6": "2001:660:4406:492:5::9",
-      "kavlan-7": "2001:660:4406:493:5::9",
-      "kavlan-8": "2001:660:4406:494:5::9",
-      "kavlan-9": "2001:660:4406:495:5::9"
+      "kavlan-1": "2001:660:4406:480:5:0::9",
+      "kavlan-11": "2001:660:4406:1a0:405:0::9",
+      "kavlan-12": "2001:660:4406:2a0:405:0::9",
+      "kavlan-13": "2001:660:4406:4a0:405:0::9",
+      "kavlan-14": "2001:660:4406:5a0:405:0::9",
+      "kavlan-16": "2001:660:4406:7a0:405:0::9",
+      "kavlan-18": "2001:660:4406:8a0:405:0::9",
+      "kavlan-2": "2001:660:4406:481:5:0::9",
+      "kavlan-20": "2001:660:4406:3a0:405:0::9",
+      "kavlan-21": "2001:660:4406:6a0:405:0::9",
+      "kavlan-3": "2001:660:4406:482:5:0::9",
+      "kavlan-4": "2001:660:4406:490:5:0::9",
+      "kavlan-5": "2001:660:4406:491:5:0::9",
+      "kavlan-6": "2001:660:4406:492:5:0::9",
+      "kavlan-7": "2001:660:4406:493:5:0::9",
+      "kavlan-8": "2001:660:4406:494:5:0::9",
+      "kavlan-9": "2001:660:4406:495:5:0::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.52.9",
-      "ip6": "2001:660:4406:400:5::9",
+      "ip6": "2001:660:4406:400:5:0::9",
       "kavlan": true,
       "mac": "a0:36:9f:ce:e4:24",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-1.json b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-1.json
index ad2d8af3a54..b6f3baa89f4 100644
--- a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-1.json
+++ b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-1.json
@@ -53,23 +53,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:3::1",
-      "kavlan-11": "2001:660:4406:1a0:403::1",
-      "kavlan-12": "2001:660:4406:2a0:403::1",
-      "kavlan-13": "2001:660:4406:4a0:403::1",
-      "kavlan-14": "2001:660:4406:5a0:403::1",
-      "kavlan-16": "2001:660:4406:7a0:403::1",
-      "kavlan-18": "2001:660:4406:8a0:403::1",
-      "kavlan-2": "2001:660:4406:481:3::1",
-      "kavlan-20": "2001:660:4406:3a0:403::1",
-      "kavlan-21": "2001:660:4406:6a0:403::1",
-      "kavlan-3": "2001:660:4406:482:3::1",
-      "kavlan-4": "2001:660:4406:490:3::1",
-      "kavlan-5": "2001:660:4406:491:3::1",
-      "kavlan-6": "2001:660:4406:492:3::1",
-      "kavlan-7": "2001:660:4406:493:3::1",
-      "kavlan-8": "2001:660:4406:494:3::1",
-      "kavlan-9": "2001:660:4406:495:3::1"
+      "kavlan-1": "2001:660:4406:480:3:0::1",
+      "kavlan-11": "2001:660:4406:1a0:403:0::1",
+      "kavlan-12": "2001:660:4406:2a0:403:0::1",
+      "kavlan-13": "2001:660:4406:4a0:403:0::1",
+      "kavlan-14": "2001:660:4406:5a0:403:0::1",
+      "kavlan-16": "2001:660:4406:7a0:403:0::1",
+      "kavlan-18": "2001:660:4406:8a0:403:0::1",
+      "kavlan-2": "2001:660:4406:481:3:0::1",
+      "kavlan-20": "2001:660:4406:3a0:403:0::1",
+      "kavlan-21": "2001:660:4406:6a0:403:0::1",
+      "kavlan-3": "2001:660:4406:482:3:0::1",
+      "kavlan-4": "2001:660:4406:490:3:0::1",
+      "kavlan-5": "2001:660:4406:491:3:0::1",
+      "kavlan-6": "2001:660:4406:492:3:0::1",
+      "kavlan-7": "2001:660:4406:493:3:0::1",
+      "kavlan-8": "2001:660:4406:494:3:0::1",
+      "kavlan-9": "2001:660:4406:495:3:0::1"
     }
   },
   "main_memory": {
@@ -87,7 +87,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.50.1",
-      "ip6": "2001:660:4406:400:3::1",
+      "ip6": "2001:660:4406:400:3:0::1",
       "kavlan": true,
       "mac": "a0:36:9f:08:fa:54",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-2.json b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-2.json
index 41a2b180611..a5cd3a65ce0 100644
--- a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-2.json
+++ b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-2.json
@@ -53,23 +53,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:3::2",
-      "kavlan-11": "2001:660:4406:1a0:403::2",
-      "kavlan-12": "2001:660:4406:2a0:403::2",
-      "kavlan-13": "2001:660:4406:4a0:403::2",
-      "kavlan-14": "2001:660:4406:5a0:403::2",
-      "kavlan-16": "2001:660:4406:7a0:403::2",
-      "kavlan-18": "2001:660:4406:8a0:403::2",
-      "kavlan-2": "2001:660:4406:481:3::2",
-      "kavlan-20": "2001:660:4406:3a0:403::2",
-      "kavlan-21": "2001:660:4406:6a0:403::2",
-      "kavlan-3": "2001:660:4406:482:3::2",
-      "kavlan-4": "2001:660:4406:490:3::2",
-      "kavlan-5": "2001:660:4406:491:3::2",
-      "kavlan-6": "2001:660:4406:492:3::2",
-      "kavlan-7": "2001:660:4406:493:3::2",
-      "kavlan-8": "2001:660:4406:494:3::2",
-      "kavlan-9": "2001:660:4406:495:3::2"
+      "kavlan-1": "2001:660:4406:480:3:0::2",
+      "kavlan-11": "2001:660:4406:1a0:403:0::2",
+      "kavlan-12": "2001:660:4406:2a0:403:0::2",
+      "kavlan-13": "2001:660:4406:4a0:403:0::2",
+      "kavlan-14": "2001:660:4406:5a0:403:0::2",
+      "kavlan-16": "2001:660:4406:7a0:403:0::2",
+      "kavlan-18": "2001:660:4406:8a0:403:0::2",
+      "kavlan-2": "2001:660:4406:481:3:0::2",
+      "kavlan-20": "2001:660:4406:3a0:403:0::2",
+      "kavlan-21": "2001:660:4406:6a0:403:0::2",
+      "kavlan-3": "2001:660:4406:482:3:0::2",
+      "kavlan-4": "2001:660:4406:490:3:0::2",
+      "kavlan-5": "2001:660:4406:491:3:0::2",
+      "kavlan-6": "2001:660:4406:492:3:0::2",
+      "kavlan-7": "2001:660:4406:493:3:0::2",
+      "kavlan-8": "2001:660:4406:494:3:0::2",
+      "kavlan-9": "2001:660:4406:495:3:0::2"
     }
   },
   "main_memory": {
@@ -87,7 +87,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.50.2",
-      "ip6": "2001:660:4406:400:3::2",
+      "ip6": "2001:660:4406:400:3:0::2",
       "kavlan": true,
       "mac": "a0:36:9f:08:f6:b8",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-3.json b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-3.json
index fbab3eda7c1..8a83e3c745f 100644
--- a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-3.json
+++ b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-3.json
@@ -53,23 +53,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:3::3",
-      "kavlan-11": "2001:660:4406:1a0:403::3",
-      "kavlan-12": "2001:660:4406:2a0:403::3",
-      "kavlan-13": "2001:660:4406:4a0:403::3",
-      "kavlan-14": "2001:660:4406:5a0:403::3",
-      "kavlan-16": "2001:660:4406:7a0:403::3",
-      "kavlan-18": "2001:660:4406:8a0:403::3",
-      "kavlan-2": "2001:660:4406:481:3::3",
-      "kavlan-20": "2001:660:4406:3a0:403::3",
-      "kavlan-21": "2001:660:4406:6a0:403::3",
-      "kavlan-3": "2001:660:4406:482:3::3",
-      "kavlan-4": "2001:660:4406:490:3::3",
-      "kavlan-5": "2001:660:4406:491:3::3",
-      "kavlan-6": "2001:660:4406:492:3::3",
-      "kavlan-7": "2001:660:4406:493:3::3",
-      "kavlan-8": "2001:660:4406:494:3::3",
-      "kavlan-9": "2001:660:4406:495:3::3"
+      "kavlan-1": "2001:660:4406:480:3:0::3",
+      "kavlan-11": "2001:660:4406:1a0:403:0::3",
+      "kavlan-12": "2001:660:4406:2a0:403:0::3",
+      "kavlan-13": "2001:660:4406:4a0:403:0::3",
+      "kavlan-14": "2001:660:4406:5a0:403:0::3",
+      "kavlan-16": "2001:660:4406:7a0:403:0::3",
+      "kavlan-18": "2001:660:4406:8a0:403:0::3",
+      "kavlan-2": "2001:660:4406:481:3:0::3",
+      "kavlan-20": "2001:660:4406:3a0:403:0::3",
+      "kavlan-21": "2001:660:4406:6a0:403:0::3",
+      "kavlan-3": "2001:660:4406:482:3:0::3",
+      "kavlan-4": "2001:660:4406:490:3:0::3",
+      "kavlan-5": "2001:660:4406:491:3:0::3",
+      "kavlan-6": "2001:660:4406:492:3:0::3",
+      "kavlan-7": "2001:660:4406:493:3:0::3",
+      "kavlan-8": "2001:660:4406:494:3:0::3",
+      "kavlan-9": "2001:660:4406:495:3:0::3"
     }
   },
   "main_memory": {
@@ -87,7 +87,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.50.3",
-      "ip6": "2001:660:4406:400:3::3",
+      "ip6": "2001:660:4406:400:3:0::3",
       "kavlan": true,
       "mac": "a0:36:9f:08:fa:44",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-4.json b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-4.json
index 07d6816f6cf..abda5945c41 100644
--- a/data/grid5000/sites/lyon/clusters/orion/nodes/orion-4.json
+++ b/data/grid5000/sites/lyon/clusters/orion/nodes/orion-4.json
@@ -53,23 +53,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:3::4",
-      "kavlan-11": "2001:660:4406:1a0:403::4",
-      "kavlan-12": "2001:660:4406:2a0:403::4",
-      "kavlan-13": "2001:660:4406:4a0:403::4",
-      "kavlan-14": "2001:660:4406:5a0:403::4",
-      "kavlan-16": "2001:660:4406:7a0:403::4",
-      "kavlan-18": "2001:660:4406:8a0:403::4",
-      "kavlan-2": "2001:660:4406:481:3::4",
-      "kavlan-20": "2001:660:4406:3a0:403::4",
-      "kavlan-21": "2001:660:4406:6a0:403::4",
-      "kavlan-3": "2001:660:4406:482:3::4",
-      "kavlan-4": "2001:660:4406:490:3::4",
-      "kavlan-5": "2001:660:4406:491:3::4",
-      "kavlan-6": "2001:660:4406:492:3::4",
-      "kavlan-7": "2001:660:4406:493:3::4",
-      "kavlan-8": "2001:660:4406:494:3::4",
-      "kavlan-9": "2001:660:4406:495:3::4"
+      "kavlan-1": "2001:660:4406:480:3:0::4",
+      "kavlan-11": "2001:660:4406:1a0:403:0::4",
+      "kavlan-12": "2001:660:4406:2a0:403:0::4",
+      "kavlan-13": "2001:660:4406:4a0:403:0::4",
+      "kavlan-14": "2001:660:4406:5a0:403:0::4",
+      "kavlan-16": "2001:660:4406:7a0:403:0::4",
+      "kavlan-18": "2001:660:4406:8a0:403:0::4",
+      "kavlan-2": "2001:660:4406:481:3:0::4",
+      "kavlan-20": "2001:660:4406:3a0:403:0::4",
+      "kavlan-21": "2001:660:4406:6a0:403:0::4",
+      "kavlan-3": "2001:660:4406:482:3:0::4",
+      "kavlan-4": "2001:660:4406:490:3:0::4",
+      "kavlan-5": "2001:660:4406:491:3:0::4",
+      "kavlan-6": "2001:660:4406:492:3:0::4",
+      "kavlan-7": "2001:660:4406:493:3:0::4",
+      "kavlan-8": "2001:660:4406:494:3:0::4",
+      "kavlan-9": "2001:660:4406:495:3:0::4"
     }
   },
   "main_memory": {
@@ -87,7 +87,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.50.4",
-      "ip6": "2001:660:4406:400:3::4",
+      "ip6": "2001:660:4406:400:3:0::4",
       "kavlan": true,
       "mac": "a0:36:9f:08:f8:c0",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
index 562f16d1f08..e93486561d4 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:7::1",
-      "kavlan-11": "2001:660:4406:1a0:407::1",
-      "kavlan-12": "2001:660:4406:2a0:407::1",
-      "kavlan-13": "2001:660:4406:4a0:407::1",
-      "kavlan-14": "2001:660:4406:5a0:407::1",
-      "kavlan-16": "2001:660:4406:7a0:407::1",
-      "kavlan-18": "2001:660:4406:8a0:407::1",
-      "kavlan-2": "2001:660:4406:481:7::1",
-      "kavlan-20": "2001:660:4406:3a0:407::1",
-      "kavlan-21": "2001:660:4406:6a0:407::1",
-      "kavlan-3": "2001:660:4406:482:7::1",
-      "kavlan-4": "2001:660:4406:490:7::1",
-      "kavlan-5": "2001:660:4406:491:7::1",
-      "kavlan-6": "2001:660:4406:492:7::1",
-      "kavlan-7": "2001:660:4406:493:7::1",
-      "kavlan-8": "2001:660:4406:494:7::1",
-      "kavlan-9": "2001:660:4406:495:7::1"
+      "kavlan-1": "2001:660:4406:480:7:0::1",
+      "kavlan-11": "2001:660:4406:1a0:407:0::1",
+      "kavlan-12": "2001:660:4406:2a0:407:0::1",
+      "kavlan-13": "2001:660:4406:4a0:407:0::1",
+      "kavlan-14": "2001:660:4406:5a0:407:0::1",
+      "kavlan-16": "2001:660:4406:7a0:407:0::1",
+      "kavlan-18": "2001:660:4406:8a0:407:0::1",
+      "kavlan-2": "2001:660:4406:481:7:0::1",
+      "kavlan-20": "2001:660:4406:3a0:407:0::1",
+      "kavlan-21": "2001:660:4406:6a0:407:0::1",
+      "kavlan-3": "2001:660:4406:482:7:0::1",
+      "kavlan-4": "2001:660:4406:490:7:0::1",
+      "kavlan-5": "2001:660:4406:491:7:0::1",
+      "kavlan-6": "2001:660:4406:492:7:0::1",
+      "kavlan-7": "2001:660:4406:493:7:0::1",
+      "kavlan-8": "2001:660:4406:494:7:0::1",
+      "kavlan-9": "2001:660:4406:495:7:0::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "mfw 8.35.24.0 storm 8.37.2.0",
       "interface": "Ethernet",
       "ip": "172.16.54.1",
-      "ip6": "2001:660:4406:400:7::1",
+      "ip6": "2001:660:4406:400:7:0::1",
       "kavlan": true,
       "mac": "b4:2e:99:3d:1f:40",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-2.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-2.json
index 2e33f222866..d74800c265c 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-2.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:7::2",
-      "kavlan-11": "2001:660:4406:1a0:407::2",
-      "kavlan-12": "2001:660:4406:2a0:407::2",
-      "kavlan-13": "2001:660:4406:4a0:407::2",
-      "kavlan-14": "2001:660:4406:5a0:407::2",
-      "kavlan-16": "2001:660:4406:7a0:407::2",
-      "kavlan-18": "2001:660:4406:8a0:407::2",
-      "kavlan-2": "2001:660:4406:481:7::2",
-      "kavlan-20": "2001:660:4406:3a0:407::2",
-      "kavlan-21": "2001:660:4406:6a0:407::2",
-      "kavlan-3": "2001:660:4406:482:7::2",
-      "kavlan-4": "2001:660:4406:490:7::2",
-      "kavlan-5": "2001:660:4406:491:7::2",
-      "kavlan-6": "2001:660:4406:492:7::2",
-      "kavlan-7": "2001:660:4406:493:7::2",
-      "kavlan-8": "2001:660:4406:494:7::2",
-      "kavlan-9": "2001:660:4406:495:7::2"
+      "kavlan-1": "2001:660:4406:480:7:0::2",
+      "kavlan-11": "2001:660:4406:1a0:407:0::2",
+      "kavlan-12": "2001:660:4406:2a0:407:0::2",
+      "kavlan-13": "2001:660:4406:4a0:407:0::2",
+      "kavlan-14": "2001:660:4406:5a0:407:0::2",
+      "kavlan-16": "2001:660:4406:7a0:407:0::2",
+      "kavlan-18": "2001:660:4406:8a0:407:0::2",
+      "kavlan-2": "2001:660:4406:481:7:0::2",
+      "kavlan-20": "2001:660:4406:3a0:407:0::2",
+      "kavlan-21": "2001:660:4406:6a0:407:0::2",
+      "kavlan-3": "2001:660:4406:482:7:0::2",
+      "kavlan-4": "2001:660:4406:490:7:0::2",
+      "kavlan-5": "2001:660:4406:491:7:0::2",
+      "kavlan-6": "2001:660:4406:492:7:0::2",
+      "kavlan-7": "2001:660:4406:493:7:0::2",
+      "kavlan-8": "2001:660:4406:494:7:0::2",
+      "kavlan-9": "2001:660:4406:495:7:0::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "mfw 8.35.24.0 storm 8.37.2.0",
       "interface": "Ethernet",
       "ip": "172.16.54.2",
-      "ip6": "2001:660:4406:400:7::2",
+      "ip6": "2001:660:4406:400:7:0::2",
       "kavlan": true,
       "mac": "b4:2e:99:3d:1f:3c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-3.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-3.json
index a82f96bc0ce..b6b5d061191 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-3.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:7::3",
-      "kavlan-11": "2001:660:4406:1a0:407::3",
-      "kavlan-12": "2001:660:4406:2a0:407::3",
-      "kavlan-13": "2001:660:4406:4a0:407::3",
-      "kavlan-14": "2001:660:4406:5a0:407::3",
-      "kavlan-16": "2001:660:4406:7a0:407::3",
-      "kavlan-18": "2001:660:4406:8a0:407::3",
-      "kavlan-2": "2001:660:4406:481:7::3",
-      "kavlan-20": "2001:660:4406:3a0:407::3",
-      "kavlan-21": "2001:660:4406:6a0:407::3",
-      "kavlan-3": "2001:660:4406:482:7::3",
-      "kavlan-4": "2001:660:4406:490:7::3",
-      "kavlan-5": "2001:660:4406:491:7::3",
-      "kavlan-6": "2001:660:4406:492:7::3",
-      "kavlan-7": "2001:660:4406:493:7::3",
-      "kavlan-8": "2001:660:4406:494:7::3",
-      "kavlan-9": "2001:660:4406:495:7::3"
+      "kavlan-1": "2001:660:4406:480:7:0::3",
+      "kavlan-11": "2001:660:4406:1a0:407:0::3",
+      "kavlan-12": "2001:660:4406:2a0:407:0::3",
+      "kavlan-13": "2001:660:4406:4a0:407:0::3",
+      "kavlan-14": "2001:660:4406:5a0:407:0::3",
+      "kavlan-16": "2001:660:4406:7a0:407:0::3",
+      "kavlan-18": "2001:660:4406:8a0:407:0::3",
+      "kavlan-2": "2001:660:4406:481:7:0::3",
+      "kavlan-20": "2001:660:4406:3a0:407:0::3",
+      "kavlan-21": "2001:660:4406:6a0:407:0::3",
+      "kavlan-3": "2001:660:4406:482:7:0::3",
+      "kavlan-4": "2001:660:4406:490:7:0::3",
+      "kavlan-5": "2001:660:4406:491:7:0::3",
+      "kavlan-6": "2001:660:4406:492:7:0::3",
+      "kavlan-7": "2001:660:4406:493:7:0::3",
+      "kavlan-8": "2001:660:4406:494:7:0::3",
+      "kavlan-9": "2001:660:4406:495:7:0::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "mfw 8.35.24.0 storm 8.37.2.0",
       "interface": "Ethernet",
       "ip": "172.16.54.3",
-      "ip6": "2001:660:4406:400:7::3",
+      "ip6": "2001:660:4406:400:7:0::3",
       "kavlan": true,
       "mac": "b4:2e:99:3d:1e:d0",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-4.json b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-4.json
index cfad16f299c..f64674f887c 100644
--- a/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-4.json
+++ b/data/grid5000/sites/lyon/clusters/pyxis/nodes/pyxis-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:7::4",
-      "kavlan-11": "2001:660:4406:1a0:407::4",
-      "kavlan-12": "2001:660:4406:2a0:407::4",
-      "kavlan-13": "2001:660:4406:4a0:407::4",
-      "kavlan-14": "2001:660:4406:5a0:407::4",
-      "kavlan-16": "2001:660:4406:7a0:407::4",
-      "kavlan-18": "2001:660:4406:8a0:407::4",
-      "kavlan-2": "2001:660:4406:481:7::4",
-      "kavlan-20": "2001:660:4406:3a0:407::4",
-      "kavlan-21": "2001:660:4406:6a0:407::4",
-      "kavlan-3": "2001:660:4406:482:7::4",
-      "kavlan-4": "2001:660:4406:490:7::4",
-      "kavlan-5": "2001:660:4406:491:7::4",
-      "kavlan-6": "2001:660:4406:492:7::4",
-      "kavlan-7": "2001:660:4406:493:7::4",
-      "kavlan-8": "2001:660:4406:494:7::4",
-      "kavlan-9": "2001:660:4406:495:7::4"
+      "kavlan-1": "2001:660:4406:480:7:0::4",
+      "kavlan-11": "2001:660:4406:1a0:407:0::4",
+      "kavlan-12": "2001:660:4406:2a0:407:0::4",
+      "kavlan-13": "2001:660:4406:4a0:407:0::4",
+      "kavlan-14": "2001:660:4406:5a0:407:0::4",
+      "kavlan-16": "2001:660:4406:7a0:407:0::4",
+      "kavlan-18": "2001:660:4406:8a0:407:0::4",
+      "kavlan-2": "2001:660:4406:481:7:0::4",
+      "kavlan-20": "2001:660:4406:3a0:407:0::4",
+      "kavlan-21": "2001:660:4406:6a0:407:0::4",
+      "kavlan-3": "2001:660:4406:482:7:0::4",
+      "kavlan-4": "2001:660:4406:490:7:0::4",
+      "kavlan-5": "2001:660:4406:491:7:0::4",
+      "kavlan-6": "2001:660:4406:492:7:0::4",
+      "kavlan-7": "2001:660:4406:493:7:0::4",
+      "kavlan-8": "2001:660:4406:494:7:0::4",
+      "kavlan-9": "2001:660:4406:495:7:0::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "mfw 8.35.24.0 storm 8.37.2.0",
       "interface": "Ethernet",
       "ip": "172.16.54.4",
-      "ip6": "2001:660:4406:400:7::4",
+      "ip6": "2001:660:4406:400:7:0::4",
       "kavlan": true,
       "mac": "b4:2e:99:3d:1e:dc",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-1.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-1.json
index 3c08d0e4318..cc8e4d7c090 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-1.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::1",
-      "kavlan-11": "2001:660:4406:1a0:402::1",
-      "kavlan-12": "2001:660:4406:2a0:402::1",
-      "kavlan-13": "2001:660:4406:4a0:402::1",
-      "kavlan-14": "2001:660:4406:5a0:402::1",
-      "kavlan-16": "2001:660:4406:7a0:402::1",
-      "kavlan-18": "2001:660:4406:8a0:402::1",
-      "kavlan-2": "2001:660:4406:481:2::1",
-      "kavlan-20": "2001:660:4406:3a0:402::1",
-      "kavlan-21": "2001:660:4406:6a0:402::1",
-      "kavlan-3": "2001:660:4406:482:2::1",
-      "kavlan-4": "2001:660:4406:490:2::1",
-      "kavlan-5": "2001:660:4406:491:2::1",
-      "kavlan-6": "2001:660:4406:492:2::1",
-      "kavlan-7": "2001:660:4406:493:2::1",
-      "kavlan-8": "2001:660:4406:494:2::1",
-      "kavlan-9": "2001:660:4406:495:2::1"
+      "kavlan-1": "2001:660:4406:480:2:0::1",
+      "kavlan-11": "2001:660:4406:1a0:402:0::1",
+      "kavlan-12": "2001:660:4406:2a0:402:0::1",
+      "kavlan-13": "2001:660:4406:4a0:402:0::1",
+      "kavlan-14": "2001:660:4406:5a0:402:0::1",
+      "kavlan-16": "2001:660:4406:7a0:402:0::1",
+      "kavlan-18": "2001:660:4406:8a0:402:0::1",
+      "kavlan-2": "2001:660:4406:481:2:0::1",
+      "kavlan-20": "2001:660:4406:3a0:402:0::1",
+      "kavlan-21": "2001:660:4406:6a0:402:0::1",
+      "kavlan-3": "2001:660:4406:482:2:0::1",
+      "kavlan-4": "2001:660:4406:490:2:0::1",
+      "kavlan-5": "2001:660:4406:491:2:0::1",
+      "kavlan-6": "2001:660:4406:492:2:0::1",
+      "kavlan-7": "2001:660:4406:493:2:0::1",
+      "kavlan-8": "2001:660:4406:494:2:0::1",
+      "kavlan-9": "2001:660:4406:495:2:0::1"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.1",
-      "ip6": "2001:660:4406:400:2::1",
+      "ip6": "2001:660:4406:400:2:0::1",
       "kavlan": true,
       "mac": "00:09:3d:12:9e:14",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json
index ec5a8c11919..1a80c0c84cf 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::b",
-      "kavlan-11": "2001:660:4406:1a0:402::b",
-      "kavlan-12": "2001:660:4406:2a0:402::b",
-      "kavlan-13": "2001:660:4406:4a0:402::b",
-      "kavlan-14": "2001:660:4406:5a0:402::b",
-      "kavlan-16": "2001:660:4406:7a0:402::b",
-      "kavlan-18": "2001:660:4406:8a0:402::b",
-      "kavlan-2": "2001:660:4406:481:2::b",
-      "kavlan-20": "2001:660:4406:3a0:402::b",
-      "kavlan-21": "2001:660:4406:6a0:402::b",
-      "kavlan-3": "2001:660:4406:482:2::b",
-      "kavlan-4": "2001:660:4406:490:2::b",
-      "kavlan-5": "2001:660:4406:491:2::b",
-      "kavlan-6": "2001:660:4406:492:2::b",
-      "kavlan-7": "2001:660:4406:493:2::b",
-      "kavlan-8": "2001:660:4406:494:2::b",
-      "kavlan-9": "2001:660:4406:495:2::b"
+      "kavlan-1": "2001:660:4406:480:2:0::b",
+      "kavlan-11": "2001:660:4406:1a0:402:0::b",
+      "kavlan-12": "2001:660:4406:2a0:402:0::b",
+      "kavlan-13": "2001:660:4406:4a0:402:0::b",
+      "kavlan-14": "2001:660:4406:5a0:402:0::b",
+      "kavlan-16": "2001:660:4406:7a0:402:0::b",
+      "kavlan-18": "2001:660:4406:8a0:402:0::b",
+      "kavlan-2": "2001:660:4406:481:2:0::b",
+      "kavlan-20": "2001:660:4406:3a0:402:0::b",
+      "kavlan-21": "2001:660:4406:6a0:402:0::b",
+      "kavlan-3": "2001:660:4406:482:2:0::b",
+      "kavlan-4": "2001:660:4406:490:2:0::b",
+      "kavlan-5": "2001:660:4406:491:2:0::b",
+      "kavlan-6": "2001:660:4406:492:2:0::b",
+      "kavlan-7": "2001:660:4406:493:2:0::b",
+      "kavlan-8": "2001:660:4406:494:2:0::b",
+      "kavlan-9": "2001:660:4406:495:2:0::b"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.11",
-      "ip6": "2001:660:4406:400:2::b",
+      "ip6": "2001:660:4406:400:2:0::b",
       "kavlan": true,
       "mac": "00:09:3d:12:9e:07",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json
index cf388e1e83e..cfd8d6bf9f5 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::c",
-      "kavlan-11": "2001:660:4406:1a0:402::c",
-      "kavlan-12": "2001:660:4406:2a0:402::c",
-      "kavlan-13": "2001:660:4406:4a0:402::c",
-      "kavlan-14": "2001:660:4406:5a0:402::c",
-      "kavlan-16": "2001:660:4406:7a0:402::c",
-      "kavlan-18": "2001:660:4406:8a0:402::c",
-      "kavlan-2": "2001:660:4406:481:2::c",
-      "kavlan-20": "2001:660:4406:3a0:402::c",
-      "kavlan-21": "2001:660:4406:6a0:402::c",
-      "kavlan-3": "2001:660:4406:482:2::c",
-      "kavlan-4": "2001:660:4406:490:2::c",
-      "kavlan-5": "2001:660:4406:491:2::c",
-      "kavlan-6": "2001:660:4406:492:2::c",
-      "kavlan-7": "2001:660:4406:493:2::c",
-      "kavlan-8": "2001:660:4406:494:2::c",
-      "kavlan-9": "2001:660:4406:495:2::c"
+      "kavlan-1": "2001:660:4406:480:2:0::c",
+      "kavlan-11": "2001:660:4406:1a0:402:0::c",
+      "kavlan-12": "2001:660:4406:2a0:402:0::c",
+      "kavlan-13": "2001:660:4406:4a0:402:0::c",
+      "kavlan-14": "2001:660:4406:5a0:402:0::c",
+      "kavlan-16": "2001:660:4406:7a0:402:0::c",
+      "kavlan-18": "2001:660:4406:8a0:402:0::c",
+      "kavlan-2": "2001:660:4406:481:2:0::c",
+      "kavlan-20": "2001:660:4406:3a0:402:0::c",
+      "kavlan-21": "2001:660:4406:6a0:402:0::c",
+      "kavlan-3": "2001:660:4406:482:2:0::c",
+      "kavlan-4": "2001:660:4406:490:2:0::c",
+      "kavlan-5": "2001:660:4406:491:2:0::c",
+      "kavlan-6": "2001:660:4406:492:2:0::c",
+      "kavlan-7": "2001:660:4406:493:2:0::c",
+      "kavlan-8": "2001:660:4406:494:2:0::c",
+      "kavlan-9": "2001:660:4406:495:2:0::c"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.12",
-      "ip6": "2001:660:4406:400:2::c",
+      "ip6": "2001:660:4406:400:2:0::c",
       "kavlan": true,
       "mac": "00:09:3d:12:3c:2c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json
index b86764f0509..473ce18a4c7 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::d",
-      "kavlan-11": "2001:660:4406:1a0:402::d",
-      "kavlan-12": "2001:660:4406:2a0:402::d",
-      "kavlan-13": "2001:660:4406:4a0:402::d",
-      "kavlan-14": "2001:660:4406:5a0:402::d",
-      "kavlan-16": "2001:660:4406:7a0:402::d",
-      "kavlan-18": "2001:660:4406:8a0:402::d",
-      "kavlan-2": "2001:660:4406:481:2::d",
-      "kavlan-20": "2001:660:4406:3a0:402::d",
-      "kavlan-21": "2001:660:4406:6a0:402::d",
-      "kavlan-3": "2001:660:4406:482:2::d",
-      "kavlan-4": "2001:660:4406:490:2::d",
-      "kavlan-5": "2001:660:4406:491:2::d",
-      "kavlan-6": "2001:660:4406:492:2::d",
-      "kavlan-7": "2001:660:4406:493:2::d",
-      "kavlan-8": "2001:660:4406:494:2::d",
-      "kavlan-9": "2001:660:4406:495:2::d"
+      "kavlan-1": "2001:660:4406:480:2:0::d",
+      "kavlan-11": "2001:660:4406:1a0:402:0::d",
+      "kavlan-12": "2001:660:4406:2a0:402:0::d",
+      "kavlan-13": "2001:660:4406:4a0:402:0::d",
+      "kavlan-14": "2001:660:4406:5a0:402:0::d",
+      "kavlan-16": "2001:660:4406:7a0:402:0::d",
+      "kavlan-18": "2001:660:4406:8a0:402:0::d",
+      "kavlan-2": "2001:660:4406:481:2:0::d",
+      "kavlan-20": "2001:660:4406:3a0:402:0::d",
+      "kavlan-21": "2001:660:4406:6a0:402:0::d",
+      "kavlan-3": "2001:660:4406:482:2:0::d",
+      "kavlan-4": "2001:660:4406:490:2:0::d",
+      "kavlan-5": "2001:660:4406:491:2:0::d",
+      "kavlan-6": "2001:660:4406:492:2:0::d",
+      "kavlan-7": "2001:660:4406:493:2:0::d",
+      "kavlan-8": "2001:660:4406:494:2:0::d",
+      "kavlan-9": "2001:660:4406:495:2:0::d"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.13",
-      "ip6": "2001:660:4406:400:2::d",
+      "ip6": "2001:660:4406:400:2:0::d",
       "kavlan": true,
       "mac": "00:09:3d:12:91:61",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json
index 9389fe95d82..c65544cf697 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::e",
-      "kavlan-11": "2001:660:4406:1a0:402::e",
-      "kavlan-12": "2001:660:4406:2a0:402::e",
-      "kavlan-13": "2001:660:4406:4a0:402::e",
-      "kavlan-14": "2001:660:4406:5a0:402::e",
-      "kavlan-16": "2001:660:4406:7a0:402::e",
-      "kavlan-18": "2001:660:4406:8a0:402::e",
-      "kavlan-2": "2001:660:4406:481:2::e",
-      "kavlan-20": "2001:660:4406:3a0:402::e",
-      "kavlan-21": "2001:660:4406:6a0:402::e",
-      "kavlan-3": "2001:660:4406:482:2::e",
-      "kavlan-4": "2001:660:4406:490:2::e",
-      "kavlan-5": "2001:660:4406:491:2::e",
-      "kavlan-6": "2001:660:4406:492:2::e",
-      "kavlan-7": "2001:660:4406:493:2::e",
-      "kavlan-8": "2001:660:4406:494:2::e",
-      "kavlan-9": "2001:660:4406:495:2::e"
+      "kavlan-1": "2001:660:4406:480:2:0::e",
+      "kavlan-11": "2001:660:4406:1a0:402:0::e",
+      "kavlan-12": "2001:660:4406:2a0:402:0::e",
+      "kavlan-13": "2001:660:4406:4a0:402:0::e",
+      "kavlan-14": "2001:660:4406:5a0:402:0::e",
+      "kavlan-16": "2001:660:4406:7a0:402:0::e",
+      "kavlan-18": "2001:660:4406:8a0:402:0::e",
+      "kavlan-2": "2001:660:4406:481:2:0::e",
+      "kavlan-20": "2001:660:4406:3a0:402:0::e",
+      "kavlan-21": "2001:660:4406:6a0:402:0::e",
+      "kavlan-3": "2001:660:4406:482:2:0::e",
+      "kavlan-4": "2001:660:4406:490:2:0::e",
+      "kavlan-5": "2001:660:4406:491:2:0::e",
+      "kavlan-6": "2001:660:4406:492:2:0::e",
+      "kavlan-7": "2001:660:4406:493:2:0::e",
+      "kavlan-8": "2001:660:4406:494:2:0::e",
+      "kavlan-9": "2001:660:4406:495:2:0::e"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.14",
-      "ip6": "2001:660:4406:400:2::e",
+      "ip6": "2001:660:4406:400:2:0::e",
       "kavlan": true,
       "mac": "00:09:3d:12:7a:bd",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json
index 4afeb83c062..4fe7d7e6efc 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::f",
-      "kavlan-11": "2001:660:4406:1a0:402::f",
-      "kavlan-12": "2001:660:4406:2a0:402::f",
-      "kavlan-13": "2001:660:4406:4a0:402::f",
-      "kavlan-14": "2001:660:4406:5a0:402::f",
-      "kavlan-16": "2001:660:4406:7a0:402::f",
-      "kavlan-18": "2001:660:4406:8a0:402::f",
-      "kavlan-2": "2001:660:4406:481:2::f",
-      "kavlan-20": "2001:660:4406:3a0:402::f",
-      "kavlan-21": "2001:660:4406:6a0:402::f",
-      "kavlan-3": "2001:660:4406:482:2::f",
-      "kavlan-4": "2001:660:4406:490:2::f",
-      "kavlan-5": "2001:660:4406:491:2::f",
-      "kavlan-6": "2001:660:4406:492:2::f",
-      "kavlan-7": "2001:660:4406:493:2::f",
-      "kavlan-8": "2001:660:4406:494:2::f",
-      "kavlan-9": "2001:660:4406:495:2::f"
+      "kavlan-1": "2001:660:4406:480:2:0::f",
+      "kavlan-11": "2001:660:4406:1a0:402:0::f",
+      "kavlan-12": "2001:660:4406:2a0:402:0::f",
+      "kavlan-13": "2001:660:4406:4a0:402:0::f",
+      "kavlan-14": "2001:660:4406:5a0:402:0::f",
+      "kavlan-16": "2001:660:4406:7a0:402:0::f",
+      "kavlan-18": "2001:660:4406:8a0:402:0::f",
+      "kavlan-2": "2001:660:4406:481:2:0::f",
+      "kavlan-20": "2001:660:4406:3a0:402:0::f",
+      "kavlan-21": "2001:660:4406:6a0:402:0::f",
+      "kavlan-3": "2001:660:4406:482:2:0::f",
+      "kavlan-4": "2001:660:4406:490:2:0::f",
+      "kavlan-5": "2001:660:4406:491:2:0::f",
+      "kavlan-6": "2001:660:4406:492:2:0::f",
+      "kavlan-7": "2001:660:4406:493:2:0::f",
+      "kavlan-8": "2001:660:4406:494:2:0::f",
+      "kavlan-9": "2001:660:4406:495:2:0::f"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.15",
-      "ip6": "2001:660:4406:400:2::f",
+      "ip6": "2001:660:4406:400:2:0::f",
       "kavlan": true,
       "mac": "00:09:3d:12:28:71",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json
index 030d2d6581d..46bb1092cfb 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::10",
-      "kavlan-11": "2001:660:4406:1a0:402::10",
-      "kavlan-12": "2001:660:4406:2a0:402::10",
-      "kavlan-13": "2001:660:4406:4a0:402::10",
-      "kavlan-14": "2001:660:4406:5a0:402::10",
-      "kavlan-16": "2001:660:4406:7a0:402::10",
-      "kavlan-18": "2001:660:4406:8a0:402::10",
-      "kavlan-2": "2001:660:4406:481:2::10",
-      "kavlan-20": "2001:660:4406:3a0:402::10",
-      "kavlan-21": "2001:660:4406:6a0:402::10",
-      "kavlan-3": "2001:660:4406:482:2::10",
-      "kavlan-4": "2001:660:4406:490:2::10",
-      "kavlan-5": "2001:660:4406:491:2::10",
-      "kavlan-6": "2001:660:4406:492:2::10",
-      "kavlan-7": "2001:660:4406:493:2::10",
-      "kavlan-8": "2001:660:4406:494:2::10",
-      "kavlan-9": "2001:660:4406:495:2::10"
+      "kavlan-1": "2001:660:4406:480:2:0::10",
+      "kavlan-11": "2001:660:4406:1a0:402:0::10",
+      "kavlan-12": "2001:660:4406:2a0:402:0::10",
+      "kavlan-13": "2001:660:4406:4a0:402:0::10",
+      "kavlan-14": "2001:660:4406:5a0:402:0::10",
+      "kavlan-16": "2001:660:4406:7a0:402:0::10",
+      "kavlan-18": "2001:660:4406:8a0:402:0::10",
+      "kavlan-2": "2001:660:4406:481:2:0::10",
+      "kavlan-20": "2001:660:4406:3a0:402:0::10",
+      "kavlan-21": "2001:660:4406:6a0:402:0::10",
+      "kavlan-3": "2001:660:4406:482:2:0::10",
+      "kavlan-4": "2001:660:4406:490:2:0::10",
+      "kavlan-5": "2001:660:4406:491:2:0::10",
+      "kavlan-6": "2001:660:4406:492:2:0::10",
+      "kavlan-7": "2001:660:4406:493:2:0::10",
+      "kavlan-8": "2001:660:4406:494:2:0::10",
+      "kavlan-9": "2001:660:4406:495:2:0::10"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.16",
-      "ip6": "2001:660:4406:400:2::10",
+      "ip6": "2001:660:4406:400:2:0::10",
       "kavlan": true,
       "mac": "00:09:3d:12:7d:07",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json
index 07d0ef084b0..4c63101748a 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::11",
-      "kavlan-11": "2001:660:4406:1a0:402::11",
-      "kavlan-12": "2001:660:4406:2a0:402::11",
-      "kavlan-13": "2001:660:4406:4a0:402::11",
-      "kavlan-14": "2001:660:4406:5a0:402::11",
-      "kavlan-16": "2001:660:4406:7a0:402::11",
-      "kavlan-18": "2001:660:4406:8a0:402::11",
-      "kavlan-2": "2001:660:4406:481:2::11",
-      "kavlan-20": "2001:660:4406:3a0:402::11",
-      "kavlan-21": "2001:660:4406:6a0:402::11",
-      "kavlan-3": "2001:660:4406:482:2::11",
-      "kavlan-4": "2001:660:4406:490:2::11",
-      "kavlan-5": "2001:660:4406:491:2::11",
-      "kavlan-6": "2001:660:4406:492:2::11",
-      "kavlan-7": "2001:660:4406:493:2::11",
-      "kavlan-8": "2001:660:4406:494:2::11",
-      "kavlan-9": "2001:660:4406:495:2::11"
+      "kavlan-1": "2001:660:4406:480:2:0::11",
+      "kavlan-11": "2001:660:4406:1a0:402:0::11",
+      "kavlan-12": "2001:660:4406:2a0:402:0::11",
+      "kavlan-13": "2001:660:4406:4a0:402:0::11",
+      "kavlan-14": "2001:660:4406:5a0:402:0::11",
+      "kavlan-16": "2001:660:4406:7a0:402:0::11",
+      "kavlan-18": "2001:660:4406:8a0:402:0::11",
+      "kavlan-2": "2001:660:4406:481:2:0::11",
+      "kavlan-20": "2001:660:4406:3a0:402:0::11",
+      "kavlan-21": "2001:660:4406:6a0:402:0::11",
+      "kavlan-3": "2001:660:4406:482:2:0::11",
+      "kavlan-4": "2001:660:4406:490:2:0::11",
+      "kavlan-5": "2001:660:4406:491:2:0::11",
+      "kavlan-6": "2001:660:4406:492:2:0::11",
+      "kavlan-7": "2001:660:4406:493:2:0::11",
+      "kavlan-8": "2001:660:4406:494:2:0::11",
+      "kavlan-9": "2001:660:4406:495:2:0::11"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.17",
-      "ip6": "2001:660:4406:400:2::11",
+      "ip6": "2001:660:4406:400:2:0::11",
       "kavlan": true,
       "mac": "00:09:3d:11:e7:63",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json
index 8bd18e0a3ad..227c04d4582 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::12",
-      "kavlan-11": "2001:660:4406:1a0:402::12",
-      "kavlan-12": "2001:660:4406:2a0:402::12",
-      "kavlan-13": "2001:660:4406:4a0:402::12",
-      "kavlan-14": "2001:660:4406:5a0:402::12",
-      "kavlan-16": "2001:660:4406:7a0:402::12",
-      "kavlan-18": "2001:660:4406:8a0:402::12",
-      "kavlan-2": "2001:660:4406:481:2::12",
-      "kavlan-20": "2001:660:4406:3a0:402::12",
-      "kavlan-21": "2001:660:4406:6a0:402::12",
-      "kavlan-3": "2001:660:4406:482:2::12",
-      "kavlan-4": "2001:660:4406:490:2::12",
-      "kavlan-5": "2001:660:4406:491:2::12",
-      "kavlan-6": "2001:660:4406:492:2::12",
-      "kavlan-7": "2001:660:4406:493:2::12",
-      "kavlan-8": "2001:660:4406:494:2::12",
-      "kavlan-9": "2001:660:4406:495:2::12"
+      "kavlan-1": "2001:660:4406:480:2:0::12",
+      "kavlan-11": "2001:660:4406:1a0:402:0::12",
+      "kavlan-12": "2001:660:4406:2a0:402:0::12",
+      "kavlan-13": "2001:660:4406:4a0:402:0::12",
+      "kavlan-14": "2001:660:4406:5a0:402:0::12",
+      "kavlan-16": "2001:660:4406:7a0:402:0::12",
+      "kavlan-18": "2001:660:4406:8a0:402:0::12",
+      "kavlan-2": "2001:660:4406:481:2:0::12",
+      "kavlan-20": "2001:660:4406:3a0:402:0::12",
+      "kavlan-21": "2001:660:4406:6a0:402:0::12",
+      "kavlan-3": "2001:660:4406:482:2:0::12",
+      "kavlan-4": "2001:660:4406:490:2:0::12",
+      "kavlan-5": "2001:660:4406:491:2:0::12",
+      "kavlan-6": "2001:660:4406:492:2:0::12",
+      "kavlan-7": "2001:660:4406:493:2:0::12",
+      "kavlan-8": "2001:660:4406:494:2:0::12",
+      "kavlan-9": "2001:660:4406:495:2:0::12"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.18",
-      "ip6": "2001:660:4406:400:2::12",
+      "ip6": "2001:660:4406:400:2:0::12",
       "kavlan": true,
       "mac": "00:09:3d:12:7e:f2",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-19.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-19.json
index 2eca8a4351c..b9f8fdea512 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-19.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::13",
-      "kavlan-11": "2001:660:4406:1a0:402::13",
-      "kavlan-12": "2001:660:4406:2a0:402::13",
-      "kavlan-13": "2001:660:4406:4a0:402::13",
-      "kavlan-14": "2001:660:4406:5a0:402::13",
-      "kavlan-16": "2001:660:4406:7a0:402::13",
-      "kavlan-18": "2001:660:4406:8a0:402::13",
-      "kavlan-2": "2001:660:4406:481:2::13",
-      "kavlan-20": "2001:660:4406:3a0:402::13",
-      "kavlan-21": "2001:660:4406:6a0:402::13",
-      "kavlan-3": "2001:660:4406:482:2::13",
-      "kavlan-4": "2001:660:4406:490:2::13",
-      "kavlan-5": "2001:660:4406:491:2::13",
-      "kavlan-6": "2001:660:4406:492:2::13",
-      "kavlan-7": "2001:660:4406:493:2::13",
-      "kavlan-8": "2001:660:4406:494:2::13",
-      "kavlan-9": "2001:660:4406:495:2::13"
+      "kavlan-1": "2001:660:4406:480:2:0::13",
+      "kavlan-11": "2001:660:4406:1a0:402:0::13",
+      "kavlan-12": "2001:660:4406:2a0:402:0::13",
+      "kavlan-13": "2001:660:4406:4a0:402:0::13",
+      "kavlan-14": "2001:660:4406:5a0:402:0::13",
+      "kavlan-16": "2001:660:4406:7a0:402:0::13",
+      "kavlan-18": "2001:660:4406:8a0:402:0::13",
+      "kavlan-2": "2001:660:4406:481:2:0::13",
+      "kavlan-20": "2001:660:4406:3a0:402:0::13",
+      "kavlan-21": "2001:660:4406:6a0:402:0::13",
+      "kavlan-3": "2001:660:4406:482:2:0::13",
+      "kavlan-4": "2001:660:4406:490:2:0::13",
+      "kavlan-5": "2001:660:4406:491:2:0::13",
+      "kavlan-6": "2001:660:4406:492:2:0::13",
+      "kavlan-7": "2001:660:4406:493:2:0::13",
+      "kavlan-8": "2001:660:4406:494:2:0::13",
+      "kavlan-9": "2001:660:4406:495:2:0::13"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.19",
-      "ip6": "2001:660:4406:400:2::13",
+      "ip6": "2001:660:4406:400:2:0::13",
       "kavlan": true,
       "mac": "00:09:3d:12:90:57",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json
index 3755310ee1e..385cbbe45c6 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::2",
-      "kavlan-11": "2001:660:4406:1a0:402::2",
-      "kavlan-12": "2001:660:4406:2a0:402::2",
-      "kavlan-13": "2001:660:4406:4a0:402::2",
-      "kavlan-14": "2001:660:4406:5a0:402::2",
-      "kavlan-16": "2001:660:4406:7a0:402::2",
-      "kavlan-18": "2001:660:4406:8a0:402::2",
-      "kavlan-2": "2001:660:4406:481:2::2",
-      "kavlan-20": "2001:660:4406:3a0:402::2",
-      "kavlan-21": "2001:660:4406:6a0:402::2",
-      "kavlan-3": "2001:660:4406:482:2::2",
-      "kavlan-4": "2001:660:4406:490:2::2",
-      "kavlan-5": "2001:660:4406:491:2::2",
-      "kavlan-6": "2001:660:4406:492:2::2",
-      "kavlan-7": "2001:660:4406:493:2::2",
-      "kavlan-8": "2001:660:4406:494:2::2",
-      "kavlan-9": "2001:660:4406:495:2::2"
+      "kavlan-1": "2001:660:4406:480:2:0::2",
+      "kavlan-11": "2001:660:4406:1a0:402:0::2",
+      "kavlan-12": "2001:660:4406:2a0:402:0::2",
+      "kavlan-13": "2001:660:4406:4a0:402:0::2",
+      "kavlan-14": "2001:660:4406:5a0:402:0::2",
+      "kavlan-16": "2001:660:4406:7a0:402:0::2",
+      "kavlan-18": "2001:660:4406:8a0:402:0::2",
+      "kavlan-2": "2001:660:4406:481:2:0::2",
+      "kavlan-20": "2001:660:4406:3a0:402:0::2",
+      "kavlan-21": "2001:660:4406:6a0:402:0::2",
+      "kavlan-3": "2001:660:4406:482:2:0::2",
+      "kavlan-4": "2001:660:4406:490:2:0::2",
+      "kavlan-5": "2001:660:4406:491:2:0::2",
+      "kavlan-6": "2001:660:4406:492:2:0::2",
+      "kavlan-7": "2001:660:4406:493:2:0::2",
+      "kavlan-8": "2001:660:4406:494:2:0::2",
+      "kavlan-9": "2001:660:4406:495:2:0::2"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.2",
-      "ip6": "2001:660:4406:400:2::2",
+      "ip6": "2001:660:4406:400:2:0::2",
       "kavlan": true,
       "mac": "00:09:3d:12:65:7d",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json
index b2fd92d8dea..818f0dced44 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::14",
-      "kavlan-11": "2001:660:4406:1a0:402::14",
-      "kavlan-12": "2001:660:4406:2a0:402::14",
-      "kavlan-13": "2001:660:4406:4a0:402::14",
-      "kavlan-14": "2001:660:4406:5a0:402::14",
-      "kavlan-16": "2001:660:4406:7a0:402::14",
-      "kavlan-18": "2001:660:4406:8a0:402::14",
-      "kavlan-2": "2001:660:4406:481:2::14",
-      "kavlan-20": "2001:660:4406:3a0:402::14",
-      "kavlan-21": "2001:660:4406:6a0:402::14",
-      "kavlan-3": "2001:660:4406:482:2::14",
-      "kavlan-4": "2001:660:4406:490:2::14",
-      "kavlan-5": "2001:660:4406:491:2::14",
-      "kavlan-6": "2001:660:4406:492:2::14",
-      "kavlan-7": "2001:660:4406:493:2::14",
-      "kavlan-8": "2001:660:4406:494:2::14",
-      "kavlan-9": "2001:660:4406:495:2::14"
+      "kavlan-1": "2001:660:4406:480:2:0::14",
+      "kavlan-11": "2001:660:4406:1a0:402:0::14",
+      "kavlan-12": "2001:660:4406:2a0:402:0::14",
+      "kavlan-13": "2001:660:4406:4a0:402:0::14",
+      "kavlan-14": "2001:660:4406:5a0:402:0::14",
+      "kavlan-16": "2001:660:4406:7a0:402:0::14",
+      "kavlan-18": "2001:660:4406:8a0:402:0::14",
+      "kavlan-2": "2001:660:4406:481:2:0::14",
+      "kavlan-20": "2001:660:4406:3a0:402:0::14",
+      "kavlan-21": "2001:660:4406:6a0:402:0::14",
+      "kavlan-3": "2001:660:4406:482:2:0::14",
+      "kavlan-4": "2001:660:4406:490:2:0::14",
+      "kavlan-5": "2001:660:4406:491:2:0::14",
+      "kavlan-6": "2001:660:4406:492:2:0::14",
+      "kavlan-7": "2001:660:4406:493:2:0::14",
+      "kavlan-8": "2001:660:4406:494:2:0::14",
+      "kavlan-9": "2001:660:4406:495:2:0::14"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.20",
-      "ip6": "2001:660:4406:400:2::14",
+      "ip6": "2001:660:4406:400:2:0::14",
       "kavlan": true,
       "mac": "00:09:3d:12:90:84",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json
index a7ed787f2ab..a039bb097f4 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::18",
-      "kavlan-11": "2001:660:4406:1a0:402::18",
-      "kavlan-12": "2001:660:4406:2a0:402::18",
-      "kavlan-13": "2001:660:4406:4a0:402::18",
-      "kavlan-14": "2001:660:4406:5a0:402::18",
-      "kavlan-16": "2001:660:4406:7a0:402::18",
-      "kavlan-18": "2001:660:4406:8a0:402::18",
-      "kavlan-2": "2001:660:4406:481:2::18",
-      "kavlan-20": "2001:660:4406:3a0:402::18",
-      "kavlan-21": "2001:660:4406:6a0:402::18",
-      "kavlan-3": "2001:660:4406:482:2::18",
-      "kavlan-4": "2001:660:4406:490:2::18",
-      "kavlan-5": "2001:660:4406:491:2::18",
-      "kavlan-6": "2001:660:4406:492:2::18",
-      "kavlan-7": "2001:660:4406:493:2::18",
-      "kavlan-8": "2001:660:4406:494:2::18",
-      "kavlan-9": "2001:660:4406:495:2::18"
+      "kavlan-1": "2001:660:4406:480:2:0::18",
+      "kavlan-11": "2001:660:4406:1a0:402:0::18",
+      "kavlan-12": "2001:660:4406:2a0:402:0::18",
+      "kavlan-13": "2001:660:4406:4a0:402:0::18",
+      "kavlan-14": "2001:660:4406:5a0:402:0::18",
+      "kavlan-16": "2001:660:4406:7a0:402:0::18",
+      "kavlan-18": "2001:660:4406:8a0:402:0::18",
+      "kavlan-2": "2001:660:4406:481:2:0::18",
+      "kavlan-20": "2001:660:4406:3a0:402:0::18",
+      "kavlan-21": "2001:660:4406:6a0:402:0::18",
+      "kavlan-3": "2001:660:4406:482:2:0::18",
+      "kavlan-4": "2001:660:4406:490:2:0::18",
+      "kavlan-5": "2001:660:4406:491:2:0::18",
+      "kavlan-6": "2001:660:4406:492:2:0::18",
+      "kavlan-7": "2001:660:4406:493:2:0::18",
+      "kavlan-8": "2001:660:4406:494:2:0::18",
+      "kavlan-9": "2001:660:4406:495:2:0::18"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.24",
-      "ip6": "2001:660:4406:400:2::18",
+      "ip6": "2001:660:4406:400:2:0::18",
       "kavlan": true,
       "mac": "00:09:3d:12:50:86",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json
index e4af2901fd8..f0c1e28e220 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::1b",
-      "kavlan-11": "2001:660:4406:1a0:402::1b",
-      "kavlan-12": "2001:660:4406:2a0:402::1b",
-      "kavlan-13": "2001:660:4406:4a0:402::1b",
-      "kavlan-14": "2001:660:4406:5a0:402::1b",
-      "kavlan-16": "2001:660:4406:7a0:402::1b",
-      "kavlan-18": "2001:660:4406:8a0:402::1b",
-      "kavlan-2": "2001:660:4406:481:2::1b",
-      "kavlan-20": "2001:660:4406:3a0:402::1b",
-      "kavlan-21": "2001:660:4406:6a0:402::1b",
-      "kavlan-3": "2001:660:4406:482:2::1b",
-      "kavlan-4": "2001:660:4406:490:2::1b",
-      "kavlan-5": "2001:660:4406:491:2::1b",
-      "kavlan-6": "2001:660:4406:492:2::1b",
-      "kavlan-7": "2001:660:4406:493:2::1b",
-      "kavlan-8": "2001:660:4406:494:2::1b",
-      "kavlan-9": "2001:660:4406:495:2::1b"
+      "kavlan-1": "2001:660:4406:480:2:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:402:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:402:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:402:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:402:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:402:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:402:0::1b",
+      "kavlan-2": "2001:660:4406:481:2:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:402:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:402:0::1b",
+      "kavlan-3": "2001:660:4406:482:2:0::1b",
+      "kavlan-4": "2001:660:4406:490:2:0::1b",
+      "kavlan-5": "2001:660:4406:491:2:0::1b",
+      "kavlan-6": "2001:660:4406:492:2:0::1b",
+      "kavlan-7": "2001:660:4406:493:2:0::1b",
+      "kavlan-8": "2001:660:4406:494:2:0::1b",
+      "kavlan-9": "2001:660:4406:495:2:0::1b"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.27",
-      "ip6": "2001:660:4406:400:2::1b",
+      "ip6": "2001:660:4406:400:2:0::1b",
       "kavlan": true,
       "mac": "00:09:3d:12:6a:f1",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json
index 59ade82a254..2b9406f98f2 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::1d",
-      "kavlan-11": "2001:660:4406:1a0:402::1d",
-      "kavlan-12": "2001:660:4406:2a0:402::1d",
-      "kavlan-13": "2001:660:4406:4a0:402::1d",
-      "kavlan-14": "2001:660:4406:5a0:402::1d",
-      "kavlan-16": "2001:660:4406:7a0:402::1d",
-      "kavlan-18": "2001:660:4406:8a0:402::1d",
-      "kavlan-2": "2001:660:4406:481:2::1d",
-      "kavlan-20": "2001:660:4406:3a0:402::1d",
-      "kavlan-21": "2001:660:4406:6a0:402::1d",
-      "kavlan-3": "2001:660:4406:482:2::1d",
-      "kavlan-4": "2001:660:4406:490:2::1d",
-      "kavlan-5": "2001:660:4406:491:2::1d",
-      "kavlan-6": "2001:660:4406:492:2::1d",
-      "kavlan-7": "2001:660:4406:493:2::1d",
-      "kavlan-8": "2001:660:4406:494:2::1d",
-      "kavlan-9": "2001:660:4406:495:2::1d"
+      "kavlan-1": "2001:660:4406:480:2:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:402:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:402:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:402:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:402:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:402:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:402:0::1d",
+      "kavlan-2": "2001:660:4406:481:2:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:402:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:402:0::1d",
+      "kavlan-3": "2001:660:4406:482:2:0::1d",
+      "kavlan-4": "2001:660:4406:490:2:0::1d",
+      "kavlan-5": "2001:660:4406:491:2:0::1d",
+      "kavlan-6": "2001:660:4406:492:2:0::1d",
+      "kavlan-7": "2001:660:4406:493:2:0::1d",
+      "kavlan-8": "2001:660:4406:494:2:0::1d",
+      "kavlan-9": "2001:660:4406:495:2:0::1d"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.29",
-      "ip6": "2001:660:4406:400:2::1d",
+      "ip6": "2001:660:4406:400:2:0::1d",
       "kavlan": true,
       "mac": "00:09:3d:11:e9:ff",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json
index 5623255beed..596c3dc32cc 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::3",
-      "kavlan-11": "2001:660:4406:1a0:402::3",
-      "kavlan-12": "2001:660:4406:2a0:402::3",
-      "kavlan-13": "2001:660:4406:4a0:402::3",
-      "kavlan-14": "2001:660:4406:5a0:402::3",
-      "kavlan-16": "2001:660:4406:7a0:402::3",
-      "kavlan-18": "2001:660:4406:8a0:402::3",
-      "kavlan-2": "2001:660:4406:481:2::3",
-      "kavlan-20": "2001:660:4406:3a0:402::3",
-      "kavlan-21": "2001:660:4406:6a0:402::3",
-      "kavlan-3": "2001:660:4406:482:2::3",
-      "kavlan-4": "2001:660:4406:490:2::3",
-      "kavlan-5": "2001:660:4406:491:2::3",
-      "kavlan-6": "2001:660:4406:492:2::3",
-      "kavlan-7": "2001:660:4406:493:2::3",
-      "kavlan-8": "2001:660:4406:494:2::3",
-      "kavlan-9": "2001:660:4406:495:2::3"
+      "kavlan-1": "2001:660:4406:480:2:0::3",
+      "kavlan-11": "2001:660:4406:1a0:402:0::3",
+      "kavlan-12": "2001:660:4406:2a0:402:0::3",
+      "kavlan-13": "2001:660:4406:4a0:402:0::3",
+      "kavlan-14": "2001:660:4406:5a0:402:0::3",
+      "kavlan-16": "2001:660:4406:7a0:402:0::3",
+      "kavlan-18": "2001:660:4406:8a0:402:0::3",
+      "kavlan-2": "2001:660:4406:481:2:0::3",
+      "kavlan-20": "2001:660:4406:3a0:402:0::3",
+      "kavlan-21": "2001:660:4406:6a0:402:0::3",
+      "kavlan-3": "2001:660:4406:482:2:0::3",
+      "kavlan-4": "2001:660:4406:490:2:0::3",
+      "kavlan-5": "2001:660:4406:491:2:0::3",
+      "kavlan-6": "2001:660:4406:492:2:0::3",
+      "kavlan-7": "2001:660:4406:493:2:0::3",
+      "kavlan-8": "2001:660:4406:494:2:0::3",
+      "kavlan-9": "2001:660:4406:495:2:0::3"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.3",
-      "ip6": "2001:660:4406:400:2::3",
+      "ip6": "2001:660:4406:400:2:0::3",
       "kavlan": true,
       "mac": "00:09:3d:12:91:67",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json
index ef1cf225b13..4941fd7fb74 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::1e",
-      "kavlan-11": "2001:660:4406:1a0:402::1e",
-      "kavlan-12": "2001:660:4406:2a0:402::1e",
-      "kavlan-13": "2001:660:4406:4a0:402::1e",
-      "kavlan-14": "2001:660:4406:5a0:402::1e",
-      "kavlan-16": "2001:660:4406:7a0:402::1e",
-      "kavlan-18": "2001:660:4406:8a0:402::1e",
-      "kavlan-2": "2001:660:4406:481:2::1e",
-      "kavlan-20": "2001:660:4406:3a0:402::1e",
-      "kavlan-21": "2001:660:4406:6a0:402::1e",
-      "kavlan-3": "2001:660:4406:482:2::1e",
-      "kavlan-4": "2001:660:4406:490:2::1e",
-      "kavlan-5": "2001:660:4406:491:2::1e",
-      "kavlan-6": "2001:660:4406:492:2::1e",
-      "kavlan-7": "2001:660:4406:493:2::1e",
-      "kavlan-8": "2001:660:4406:494:2::1e",
-      "kavlan-9": "2001:660:4406:495:2::1e"
+      "kavlan-1": "2001:660:4406:480:2:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:402:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:402:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:402:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:402:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:402:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:402:0::1e",
+      "kavlan-2": "2001:660:4406:481:2:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:402:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:402:0::1e",
+      "kavlan-3": "2001:660:4406:482:2:0::1e",
+      "kavlan-4": "2001:660:4406:490:2:0::1e",
+      "kavlan-5": "2001:660:4406:491:2:0::1e",
+      "kavlan-6": "2001:660:4406:492:2:0::1e",
+      "kavlan-7": "2001:660:4406:493:2:0::1e",
+      "kavlan-8": "2001:660:4406:494:2:0::1e",
+      "kavlan-9": "2001:660:4406:495:2:0::1e"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.30",
-      "ip6": "2001:660:4406:400:2::1e",
+      "ip6": "2001:660:4406:400:2:0::1e",
       "kavlan": true,
       "mac": "00:09:3d:12:7c:94",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-31.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-31.json
index 9d536f4dbdc..210971d4ee6 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-31.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::1f",
-      "kavlan-11": "2001:660:4406:1a0:402::1f",
-      "kavlan-12": "2001:660:4406:2a0:402::1f",
-      "kavlan-13": "2001:660:4406:4a0:402::1f",
-      "kavlan-14": "2001:660:4406:5a0:402::1f",
-      "kavlan-16": "2001:660:4406:7a0:402::1f",
-      "kavlan-18": "2001:660:4406:8a0:402::1f",
-      "kavlan-2": "2001:660:4406:481:2::1f",
-      "kavlan-20": "2001:660:4406:3a0:402::1f",
-      "kavlan-21": "2001:660:4406:6a0:402::1f",
-      "kavlan-3": "2001:660:4406:482:2::1f",
-      "kavlan-4": "2001:660:4406:490:2::1f",
-      "kavlan-5": "2001:660:4406:491:2::1f",
-      "kavlan-6": "2001:660:4406:492:2::1f",
-      "kavlan-7": "2001:660:4406:493:2::1f",
-      "kavlan-8": "2001:660:4406:494:2::1f",
-      "kavlan-9": "2001:660:4406:495:2::1f"
+      "kavlan-1": "2001:660:4406:480:2:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:402:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:402:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:402:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:402:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:402:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:402:0::1f",
+      "kavlan-2": "2001:660:4406:481:2:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:402:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:402:0::1f",
+      "kavlan-3": "2001:660:4406:482:2:0::1f",
+      "kavlan-4": "2001:660:4406:490:2:0::1f",
+      "kavlan-5": "2001:660:4406:491:2:0::1f",
+      "kavlan-6": "2001:660:4406:492:2:0::1f",
+      "kavlan-7": "2001:660:4406:493:2:0::1f",
+      "kavlan-8": "2001:660:4406:494:2:0::1f",
+      "kavlan-9": "2001:660:4406:495:2:0::1f"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.31",
-      "ip6": "2001:660:4406:400:2::1f",
+      "ip6": "2001:660:4406:400:2:0::1f",
       "kavlan": true,
       "mac": "00:09:3d:12:c9:0e",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json
index 544260695c6..94107603493 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::4",
-      "kavlan-11": "2001:660:4406:1a0:402::4",
-      "kavlan-12": "2001:660:4406:2a0:402::4",
-      "kavlan-13": "2001:660:4406:4a0:402::4",
-      "kavlan-14": "2001:660:4406:5a0:402::4",
-      "kavlan-16": "2001:660:4406:7a0:402::4",
-      "kavlan-18": "2001:660:4406:8a0:402::4",
-      "kavlan-2": "2001:660:4406:481:2::4",
-      "kavlan-20": "2001:660:4406:3a0:402::4",
-      "kavlan-21": "2001:660:4406:6a0:402::4",
-      "kavlan-3": "2001:660:4406:482:2::4",
-      "kavlan-4": "2001:660:4406:490:2::4",
-      "kavlan-5": "2001:660:4406:491:2::4",
-      "kavlan-6": "2001:660:4406:492:2::4",
-      "kavlan-7": "2001:660:4406:493:2::4",
-      "kavlan-8": "2001:660:4406:494:2::4",
-      "kavlan-9": "2001:660:4406:495:2::4"
+      "kavlan-1": "2001:660:4406:480:2:0::4",
+      "kavlan-11": "2001:660:4406:1a0:402:0::4",
+      "kavlan-12": "2001:660:4406:2a0:402:0::4",
+      "kavlan-13": "2001:660:4406:4a0:402:0::4",
+      "kavlan-14": "2001:660:4406:5a0:402:0::4",
+      "kavlan-16": "2001:660:4406:7a0:402:0::4",
+      "kavlan-18": "2001:660:4406:8a0:402:0::4",
+      "kavlan-2": "2001:660:4406:481:2:0::4",
+      "kavlan-20": "2001:660:4406:3a0:402:0::4",
+      "kavlan-21": "2001:660:4406:6a0:402:0::4",
+      "kavlan-3": "2001:660:4406:482:2:0::4",
+      "kavlan-4": "2001:660:4406:490:2:0::4",
+      "kavlan-5": "2001:660:4406:491:2:0::4",
+      "kavlan-6": "2001:660:4406:492:2:0::4",
+      "kavlan-7": "2001:660:4406:493:2:0::4",
+      "kavlan-8": "2001:660:4406:494:2:0::4",
+      "kavlan-9": "2001:660:4406:495:2:0::4"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.4",
-      "ip6": "2001:660:4406:400:2::4",
+      "ip6": "2001:660:4406:400:2:0::4",
       "kavlan": true,
       "mac": "00:09:3d:12:7e:bc",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json
index 9f6ad83bc7c..5d0f3cb726d 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::5",
-      "kavlan-11": "2001:660:4406:1a0:402::5",
-      "kavlan-12": "2001:660:4406:2a0:402::5",
-      "kavlan-13": "2001:660:4406:4a0:402::5",
-      "kavlan-14": "2001:660:4406:5a0:402::5",
-      "kavlan-16": "2001:660:4406:7a0:402::5",
-      "kavlan-18": "2001:660:4406:8a0:402::5",
-      "kavlan-2": "2001:660:4406:481:2::5",
-      "kavlan-20": "2001:660:4406:3a0:402::5",
-      "kavlan-21": "2001:660:4406:6a0:402::5",
-      "kavlan-3": "2001:660:4406:482:2::5",
-      "kavlan-4": "2001:660:4406:490:2::5",
-      "kavlan-5": "2001:660:4406:491:2::5",
-      "kavlan-6": "2001:660:4406:492:2::5",
-      "kavlan-7": "2001:660:4406:493:2::5",
-      "kavlan-8": "2001:660:4406:494:2::5",
-      "kavlan-9": "2001:660:4406:495:2::5"
+      "kavlan-1": "2001:660:4406:480:2:0::5",
+      "kavlan-11": "2001:660:4406:1a0:402:0::5",
+      "kavlan-12": "2001:660:4406:2a0:402:0::5",
+      "kavlan-13": "2001:660:4406:4a0:402:0::5",
+      "kavlan-14": "2001:660:4406:5a0:402:0::5",
+      "kavlan-16": "2001:660:4406:7a0:402:0::5",
+      "kavlan-18": "2001:660:4406:8a0:402:0::5",
+      "kavlan-2": "2001:660:4406:481:2:0::5",
+      "kavlan-20": "2001:660:4406:3a0:402:0::5",
+      "kavlan-21": "2001:660:4406:6a0:402:0::5",
+      "kavlan-3": "2001:660:4406:482:2:0::5",
+      "kavlan-4": "2001:660:4406:490:2:0::5",
+      "kavlan-5": "2001:660:4406:491:2:0::5",
+      "kavlan-6": "2001:660:4406:492:2:0::5",
+      "kavlan-7": "2001:660:4406:493:2:0::5",
+      "kavlan-8": "2001:660:4406:494:2:0::5",
+      "kavlan-9": "2001:660:4406:495:2:0::5"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.5",
-      "ip6": "2001:660:4406:400:2::5",
+      "ip6": "2001:660:4406:400:2:0::5",
       "kavlan": true,
       "mac": "00:09:3d:12:3b:7a",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-6.json b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-6.json
index 4786ba3601c..f751dc334c9 100644
--- a/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-6.json
+++ b/data/grid5000/sites/lyon/clusters/sagittaire/nodes/sagittaire-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:480:2::6",
-      "kavlan-11": "2001:660:4406:1a0:402::6",
-      "kavlan-12": "2001:660:4406:2a0:402::6",
-      "kavlan-13": "2001:660:4406:4a0:402::6",
-      "kavlan-14": "2001:660:4406:5a0:402::6",
-      "kavlan-16": "2001:660:4406:7a0:402::6",
-      "kavlan-18": "2001:660:4406:8a0:402::6",
-      "kavlan-2": "2001:660:4406:481:2::6",
-      "kavlan-20": "2001:660:4406:3a0:402::6",
-      "kavlan-21": "2001:660:4406:6a0:402::6",
-      "kavlan-3": "2001:660:4406:482:2::6",
-      "kavlan-4": "2001:660:4406:490:2::6",
-      "kavlan-5": "2001:660:4406:491:2::6",
-      "kavlan-6": "2001:660:4406:492:2::6",
-      "kavlan-7": "2001:660:4406:493:2::6",
-      "kavlan-8": "2001:660:4406:494:2::6",
-      "kavlan-9": "2001:660:4406:495:2::6"
+      "kavlan-1": "2001:660:4406:480:2:0::6",
+      "kavlan-11": "2001:660:4406:1a0:402:0::6",
+      "kavlan-12": "2001:660:4406:2a0:402:0::6",
+      "kavlan-13": "2001:660:4406:4a0:402:0::6",
+      "kavlan-14": "2001:660:4406:5a0:402:0::6",
+      "kavlan-16": "2001:660:4406:7a0:402:0::6",
+      "kavlan-18": "2001:660:4406:8a0:402:0::6",
+      "kavlan-2": "2001:660:4406:481:2:0::6",
+      "kavlan-20": "2001:660:4406:3a0:402:0::6",
+      "kavlan-21": "2001:660:4406:6a0:402:0::6",
+      "kavlan-3": "2001:660:4406:482:2:0::6",
+      "kavlan-4": "2001:660:4406:490:2:0::6",
+      "kavlan-5": "2001:660:4406:491:2:0::6",
+      "kavlan-6": "2001:660:4406:492:2:0::6",
+      "kavlan-7": "2001:660:4406:493:2:0::6",
+      "kavlan-8": "2001:660:4406:494:2:0::6",
+      "kavlan-9": "2001:660:4406:495:2:0::6"
     }
   },
   "main_memory": {
@@ -91,7 +91,7 @@
       "firmware_version": "5704-v3.27",
       "interface": "Ethernet",
       "ip": "172.16.49.6",
-      "ip6": "2001:660:4406:400:2::6",
+      "ip6": "2001:660:4406:400:2:0::6",
       "kavlan": true,
       "mac": "00:09:3d:12:3e:eb",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-1.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-1.json
index 832d076ff04..6c6533c4aa3 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-1.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::1",
-      "kavlan-11": "2001:660:4406:1a0:401::1",
-      "kavlan-12": "2001:660:4406:2a0:401::1",
-      "kavlan-13": "2001:660:4406:4a0:401::1",
-      "kavlan-14": "2001:660:4406:5a0:401::1",
-      "kavlan-16": "2001:660:4406:7a0:401::1",
-      "kavlan-18": "2001:660:4406:8a0:401::1",
-      "kavlan-2": "2001:660:4406:481:1::1",
-      "kavlan-20": "2001:660:4406:3a0:401::1",
-      "kavlan-21": "2001:660:4406:6a0:401::1",
-      "kavlan-3": "2001:660:4406:482:1::1",
-      "kavlan-4": "2001:660:4406:490:1::1",
-      "kavlan-5": "2001:660:4406:491:1::1",
-      "kavlan-6": "2001:660:4406:492:1::1",
-      "kavlan-7": "2001:660:4406:493:1::1",
-      "kavlan-8": "2001:660:4406:494:1::1",
-      "kavlan-9": "2001:660:4406:495:1::1"
+      "kavlan-1": "2001:660:4406:480:1:0::1",
+      "kavlan-11": "2001:660:4406:1a0:401:0::1",
+      "kavlan-12": "2001:660:4406:2a0:401:0::1",
+      "kavlan-13": "2001:660:4406:4a0:401:0::1",
+      "kavlan-14": "2001:660:4406:5a0:401:0::1",
+      "kavlan-16": "2001:660:4406:7a0:401:0::1",
+      "kavlan-18": "2001:660:4406:8a0:401:0::1",
+      "kavlan-2": "2001:660:4406:481:1:0::1",
+      "kavlan-20": "2001:660:4406:3a0:401:0::1",
+      "kavlan-21": "2001:660:4406:6a0:401:0::1",
+      "kavlan-3": "2001:660:4406:482:1:0::1",
+      "kavlan-4": "2001:660:4406:490:1:0::1",
+      "kavlan-5": "2001:660:4406:491:1:0::1",
+      "kavlan-6": "2001:660:4406:492:1:0::1",
+      "kavlan-7": "2001:660:4406:493:1:0::1",
+      "kavlan-8": "2001:660:4406:494:1:0::1",
+      "kavlan-9": "2001:660:4406:495:1:0::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.1",
-      "ip6": "2001:660:4406:400:1::1",
+      "ip6": "2001:660:4406:400:1:0::1",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:44",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-10.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-10.json
index 21a350816a1..f8f094a93b3 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-10.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::a",
-      "kavlan-11": "2001:660:4406:1a0:401::a",
-      "kavlan-12": "2001:660:4406:2a0:401::a",
-      "kavlan-13": "2001:660:4406:4a0:401::a",
-      "kavlan-14": "2001:660:4406:5a0:401::a",
-      "kavlan-16": "2001:660:4406:7a0:401::a",
-      "kavlan-18": "2001:660:4406:8a0:401::a",
-      "kavlan-2": "2001:660:4406:481:1::a",
-      "kavlan-20": "2001:660:4406:3a0:401::a",
-      "kavlan-21": "2001:660:4406:6a0:401::a",
-      "kavlan-3": "2001:660:4406:482:1::a",
-      "kavlan-4": "2001:660:4406:490:1::a",
-      "kavlan-5": "2001:660:4406:491:1::a",
-      "kavlan-6": "2001:660:4406:492:1::a",
-      "kavlan-7": "2001:660:4406:493:1::a",
-      "kavlan-8": "2001:660:4406:494:1::a",
-      "kavlan-9": "2001:660:4406:495:1::a"
+      "kavlan-1": "2001:660:4406:480:1:0::a",
+      "kavlan-11": "2001:660:4406:1a0:401:0::a",
+      "kavlan-12": "2001:660:4406:2a0:401:0::a",
+      "kavlan-13": "2001:660:4406:4a0:401:0::a",
+      "kavlan-14": "2001:660:4406:5a0:401:0::a",
+      "kavlan-16": "2001:660:4406:7a0:401:0::a",
+      "kavlan-18": "2001:660:4406:8a0:401:0::a",
+      "kavlan-2": "2001:660:4406:481:1:0::a",
+      "kavlan-20": "2001:660:4406:3a0:401:0::a",
+      "kavlan-21": "2001:660:4406:6a0:401:0::a",
+      "kavlan-3": "2001:660:4406:482:1:0::a",
+      "kavlan-4": "2001:660:4406:490:1:0::a",
+      "kavlan-5": "2001:660:4406:491:1:0::a",
+      "kavlan-6": "2001:660:4406:492:1:0::a",
+      "kavlan-7": "2001:660:4406:493:1:0::a",
+      "kavlan-8": "2001:660:4406:494:1:0::a",
+      "kavlan-9": "2001:660:4406:495:1:0::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.10",
-      "ip6": "2001:660:4406:400:1::a",
+      "ip6": "2001:660:4406:400:1:0::a",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:f0",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-11.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-11.json
index 7ddbc3121b7..2d0f67c870e 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-11.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::b",
-      "kavlan-11": "2001:660:4406:1a0:401::b",
-      "kavlan-12": "2001:660:4406:2a0:401::b",
-      "kavlan-13": "2001:660:4406:4a0:401::b",
-      "kavlan-14": "2001:660:4406:5a0:401::b",
-      "kavlan-16": "2001:660:4406:7a0:401::b",
-      "kavlan-18": "2001:660:4406:8a0:401::b",
-      "kavlan-2": "2001:660:4406:481:1::b",
-      "kavlan-20": "2001:660:4406:3a0:401::b",
-      "kavlan-21": "2001:660:4406:6a0:401::b",
-      "kavlan-3": "2001:660:4406:482:1::b",
-      "kavlan-4": "2001:660:4406:490:1::b",
-      "kavlan-5": "2001:660:4406:491:1::b",
-      "kavlan-6": "2001:660:4406:492:1::b",
-      "kavlan-7": "2001:660:4406:493:1::b",
-      "kavlan-8": "2001:660:4406:494:1::b",
-      "kavlan-9": "2001:660:4406:495:1::b"
+      "kavlan-1": "2001:660:4406:480:1:0::b",
+      "kavlan-11": "2001:660:4406:1a0:401:0::b",
+      "kavlan-12": "2001:660:4406:2a0:401:0::b",
+      "kavlan-13": "2001:660:4406:4a0:401:0::b",
+      "kavlan-14": "2001:660:4406:5a0:401:0::b",
+      "kavlan-16": "2001:660:4406:7a0:401:0::b",
+      "kavlan-18": "2001:660:4406:8a0:401:0::b",
+      "kavlan-2": "2001:660:4406:481:1:0::b",
+      "kavlan-20": "2001:660:4406:3a0:401:0::b",
+      "kavlan-21": "2001:660:4406:6a0:401:0::b",
+      "kavlan-3": "2001:660:4406:482:1:0::b",
+      "kavlan-4": "2001:660:4406:490:1:0::b",
+      "kavlan-5": "2001:660:4406:491:1:0::b",
+      "kavlan-6": "2001:660:4406:492:1:0::b",
+      "kavlan-7": "2001:660:4406:493:1:0::b",
+      "kavlan-8": "2001:660:4406:494:1:0::b",
+      "kavlan-9": "2001:660:4406:495:1:0::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.11",
-      "ip6": "2001:660:4406:400:1::b",
+      "ip6": "2001:660:4406:400:1:0::b",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:30",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-12.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-12.json
index 620323782d4..9df90afc7f3 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-12.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::c",
-      "kavlan-11": "2001:660:4406:1a0:401::c",
-      "kavlan-12": "2001:660:4406:2a0:401::c",
-      "kavlan-13": "2001:660:4406:4a0:401::c",
-      "kavlan-14": "2001:660:4406:5a0:401::c",
-      "kavlan-16": "2001:660:4406:7a0:401::c",
-      "kavlan-18": "2001:660:4406:8a0:401::c",
-      "kavlan-2": "2001:660:4406:481:1::c",
-      "kavlan-20": "2001:660:4406:3a0:401::c",
-      "kavlan-21": "2001:660:4406:6a0:401::c",
-      "kavlan-3": "2001:660:4406:482:1::c",
-      "kavlan-4": "2001:660:4406:490:1::c",
-      "kavlan-5": "2001:660:4406:491:1::c",
-      "kavlan-6": "2001:660:4406:492:1::c",
-      "kavlan-7": "2001:660:4406:493:1::c",
-      "kavlan-8": "2001:660:4406:494:1::c",
-      "kavlan-9": "2001:660:4406:495:1::c"
+      "kavlan-1": "2001:660:4406:480:1:0::c",
+      "kavlan-11": "2001:660:4406:1a0:401:0::c",
+      "kavlan-12": "2001:660:4406:2a0:401:0::c",
+      "kavlan-13": "2001:660:4406:4a0:401:0::c",
+      "kavlan-14": "2001:660:4406:5a0:401:0::c",
+      "kavlan-16": "2001:660:4406:7a0:401:0::c",
+      "kavlan-18": "2001:660:4406:8a0:401:0::c",
+      "kavlan-2": "2001:660:4406:481:1:0::c",
+      "kavlan-20": "2001:660:4406:3a0:401:0::c",
+      "kavlan-21": "2001:660:4406:6a0:401:0::c",
+      "kavlan-3": "2001:660:4406:482:1:0::c",
+      "kavlan-4": "2001:660:4406:490:1:0::c",
+      "kavlan-5": "2001:660:4406:491:1:0::c",
+      "kavlan-6": "2001:660:4406:492:1:0::c",
+      "kavlan-7": "2001:660:4406:493:1:0::c",
+      "kavlan-8": "2001:660:4406:494:1:0::c",
+      "kavlan-9": "2001:660:4406:495:1:0::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.12",
-      "ip6": "2001:660:4406:400:1::c",
+      "ip6": "2001:660:4406:400:1:0::c",
       "kavlan": true,
       "mac": "a0:36:9f:08:f8:f4",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-13.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-13.json
index 2d7884814fd..f0aaf6e445e 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-13.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::d",
-      "kavlan-11": "2001:660:4406:1a0:401::d",
-      "kavlan-12": "2001:660:4406:2a0:401::d",
-      "kavlan-13": "2001:660:4406:4a0:401::d",
-      "kavlan-14": "2001:660:4406:5a0:401::d",
-      "kavlan-16": "2001:660:4406:7a0:401::d",
-      "kavlan-18": "2001:660:4406:8a0:401::d",
-      "kavlan-2": "2001:660:4406:481:1::d",
-      "kavlan-20": "2001:660:4406:3a0:401::d",
-      "kavlan-21": "2001:660:4406:6a0:401::d",
-      "kavlan-3": "2001:660:4406:482:1::d",
-      "kavlan-4": "2001:660:4406:490:1::d",
-      "kavlan-5": "2001:660:4406:491:1::d",
-      "kavlan-6": "2001:660:4406:492:1::d",
-      "kavlan-7": "2001:660:4406:493:1::d",
-      "kavlan-8": "2001:660:4406:494:1::d",
-      "kavlan-9": "2001:660:4406:495:1::d"
+      "kavlan-1": "2001:660:4406:480:1:0::d",
+      "kavlan-11": "2001:660:4406:1a0:401:0::d",
+      "kavlan-12": "2001:660:4406:2a0:401:0::d",
+      "kavlan-13": "2001:660:4406:4a0:401:0::d",
+      "kavlan-14": "2001:660:4406:5a0:401:0::d",
+      "kavlan-16": "2001:660:4406:7a0:401:0::d",
+      "kavlan-18": "2001:660:4406:8a0:401:0::d",
+      "kavlan-2": "2001:660:4406:481:1:0::d",
+      "kavlan-20": "2001:660:4406:3a0:401:0::d",
+      "kavlan-21": "2001:660:4406:6a0:401:0::d",
+      "kavlan-3": "2001:660:4406:482:1:0::d",
+      "kavlan-4": "2001:660:4406:490:1:0::d",
+      "kavlan-5": "2001:660:4406:491:1:0::d",
+      "kavlan-6": "2001:660:4406:492:1:0::d",
+      "kavlan-7": "2001:660:4406:493:1:0::d",
+      "kavlan-8": "2001:660:4406:494:1:0::d",
+      "kavlan-9": "2001:660:4406:495:1:0::d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.13",
-      "ip6": "2001:660:4406:400:1::d",
+      "ip6": "2001:660:4406:400:1:0::d",
       "kavlan": true,
       "mac": "a0:36:9f:08:f9:24",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-15.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-15.json
index ac5cad37474..c193828a116 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-15.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::f",
-      "kavlan-11": "2001:660:4406:1a0:401::f",
-      "kavlan-12": "2001:660:4406:2a0:401::f",
-      "kavlan-13": "2001:660:4406:4a0:401::f",
-      "kavlan-14": "2001:660:4406:5a0:401::f",
-      "kavlan-16": "2001:660:4406:7a0:401::f",
-      "kavlan-18": "2001:660:4406:8a0:401::f",
-      "kavlan-2": "2001:660:4406:481:1::f",
-      "kavlan-20": "2001:660:4406:3a0:401::f",
-      "kavlan-21": "2001:660:4406:6a0:401::f",
-      "kavlan-3": "2001:660:4406:482:1::f",
-      "kavlan-4": "2001:660:4406:490:1::f",
-      "kavlan-5": "2001:660:4406:491:1::f",
-      "kavlan-6": "2001:660:4406:492:1::f",
-      "kavlan-7": "2001:660:4406:493:1::f",
-      "kavlan-8": "2001:660:4406:494:1::f",
-      "kavlan-9": "2001:660:4406:495:1::f"
+      "kavlan-1": "2001:660:4406:480:1:0::f",
+      "kavlan-11": "2001:660:4406:1a0:401:0::f",
+      "kavlan-12": "2001:660:4406:2a0:401:0::f",
+      "kavlan-13": "2001:660:4406:4a0:401:0::f",
+      "kavlan-14": "2001:660:4406:5a0:401:0::f",
+      "kavlan-16": "2001:660:4406:7a0:401:0::f",
+      "kavlan-18": "2001:660:4406:8a0:401:0::f",
+      "kavlan-2": "2001:660:4406:481:1:0::f",
+      "kavlan-20": "2001:660:4406:3a0:401:0::f",
+      "kavlan-21": "2001:660:4406:6a0:401:0::f",
+      "kavlan-3": "2001:660:4406:482:1:0::f",
+      "kavlan-4": "2001:660:4406:490:1:0::f",
+      "kavlan-5": "2001:660:4406:491:1:0::f",
+      "kavlan-6": "2001:660:4406:492:1:0::f",
+      "kavlan-7": "2001:660:4406:493:1:0::f",
+      "kavlan-8": "2001:660:4406:494:1:0::f",
+      "kavlan-9": "2001:660:4406:495:1:0::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.15",
-      "ip6": "2001:660:4406:400:1::f",
+      "ip6": "2001:660:4406:400:1:0::f",
       "kavlan": true,
       "mac": "a0:36:9f:09:c1:58",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-2.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-2.json
index c5ddb401f41..98f8b2c3bd5 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-2.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::2",
-      "kavlan-11": "2001:660:4406:1a0:401::2",
-      "kavlan-12": "2001:660:4406:2a0:401::2",
-      "kavlan-13": "2001:660:4406:4a0:401::2",
-      "kavlan-14": "2001:660:4406:5a0:401::2",
-      "kavlan-16": "2001:660:4406:7a0:401::2",
-      "kavlan-18": "2001:660:4406:8a0:401::2",
-      "kavlan-2": "2001:660:4406:481:1::2",
-      "kavlan-20": "2001:660:4406:3a0:401::2",
-      "kavlan-21": "2001:660:4406:6a0:401::2",
-      "kavlan-3": "2001:660:4406:482:1::2",
-      "kavlan-4": "2001:660:4406:490:1::2",
-      "kavlan-5": "2001:660:4406:491:1::2",
-      "kavlan-6": "2001:660:4406:492:1::2",
-      "kavlan-7": "2001:660:4406:493:1::2",
-      "kavlan-8": "2001:660:4406:494:1::2",
-      "kavlan-9": "2001:660:4406:495:1::2"
+      "kavlan-1": "2001:660:4406:480:1:0::2",
+      "kavlan-11": "2001:660:4406:1a0:401:0::2",
+      "kavlan-12": "2001:660:4406:2a0:401:0::2",
+      "kavlan-13": "2001:660:4406:4a0:401:0::2",
+      "kavlan-14": "2001:660:4406:5a0:401:0::2",
+      "kavlan-16": "2001:660:4406:7a0:401:0::2",
+      "kavlan-18": "2001:660:4406:8a0:401:0::2",
+      "kavlan-2": "2001:660:4406:481:1:0::2",
+      "kavlan-20": "2001:660:4406:3a0:401:0::2",
+      "kavlan-21": "2001:660:4406:6a0:401:0::2",
+      "kavlan-3": "2001:660:4406:482:1:0::2",
+      "kavlan-4": "2001:660:4406:490:1:0::2",
+      "kavlan-5": "2001:660:4406:491:1:0::2",
+      "kavlan-6": "2001:660:4406:492:1:0::2",
+      "kavlan-7": "2001:660:4406:493:1:0::2",
+      "kavlan-8": "2001:660:4406:494:1:0::2",
+      "kavlan-9": "2001:660:4406:495:1:0::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.2",
-      "ip6": "2001:660:4406:400:1::2",
+      "ip6": "2001:660:4406:400:1:0::2",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:60",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-3.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-3.json
index 65860f352aa..a03d9a05a9e 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-3.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::3",
-      "kavlan-11": "2001:660:4406:1a0:401::3",
-      "kavlan-12": "2001:660:4406:2a0:401::3",
-      "kavlan-13": "2001:660:4406:4a0:401::3",
-      "kavlan-14": "2001:660:4406:5a0:401::3",
-      "kavlan-16": "2001:660:4406:7a0:401::3",
-      "kavlan-18": "2001:660:4406:8a0:401::3",
-      "kavlan-2": "2001:660:4406:481:1::3",
-      "kavlan-20": "2001:660:4406:3a0:401::3",
-      "kavlan-21": "2001:660:4406:6a0:401::3",
-      "kavlan-3": "2001:660:4406:482:1::3",
-      "kavlan-4": "2001:660:4406:490:1::3",
-      "kavlan-5": "2001:660:4406:491:1::3",
-      "kavlan-6": "2001:660:4406:492:1::3",
-      "kavlan-7": "2001:660:4406:493:1::3",
-      "kavlan-8": "2001:660:4406:494:1::3",
-      "kavlan-9": "2001:660:4406:495:1::3"
+      "kavlan-1": "2001:660:4406:480:1:0::3",
+      "kavlan-11": "2001:660:4406:1a0:401:0::3",
+      "kavlan-12": "2001:660:4406:2a0:401:0::3",
+      "kavlan-13": "2001:660:4406:4a0:401:0::3",
+      "kavlan-14": "2001:660:4406:5a0:401:0::3",
+      "kavlan-16": "2001:660:4406:7a0:401:0::3",
+      "kavlan-18": "2001:660:4406:8a0:401:0::3",
+      "kavlan-2": "2001:660:4406:481:1:0::3",
+      "kavlan-20": "2001:660:4406:3a0:401:0::3",
+      "kavlan-21": "2001:660:4406:6a0:401:0::3",
+      "kavlan-3": "2001:660:4406:482:1:0::3",
+      "kavlan-4": "2001:660:4406:490:1:0::3",
+      "kavlan-5": "2001:660:4406:491:1:0::3",
+      "kavlan-6": "2001:660:4406:492:1:0::3",
+      "kavlan-7": "2001:660:4406:493:1:0::3",
+      "kavlan-8": "2001:660:4406:494:1:0::3",
+      "kavlan-9": "2001:660:4406:495:1:0::3"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.3",
-      "ip6": "2001:660:4406:400:1::3",
+      "ip6": "2001:660:4406:400:1:0::3",
       "kavlan": true,
       "mac": "a0:36:9f:09:c3:f8",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-4.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-4.json
index 83fa40f5736..a0b5139c446 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-4.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::4",
-      "kavlan-11": "2001:660:4406:1a0:401::4",
-      "kavlan-12": "2001:660:4406:2a0:401::4",
-      "kavlan-13": "2001:660:4406:4a0:401::4",
-      "kavlan-14": "2001:660:4406:5a0:401::4",
-      "kavlan-16": "2001:660:4406:7a0:401::4",
-      "kavlan-18": "2001:660:4406:8a0:401::4",
-      "kavlan-2": "2001:660:4406:481:1::4",
-      "kavlan-20": "2001:660:4406:3a0:401::4",
-      "kavlan-21": "2001:660:4406:6a0:401::4",
-      "kavlan-3": "2001:660:4406:482:1::4",
-      "kavlan-4": "2001:660:4406:490:1::4",
-      "kavlan-5": "2001:660:4406:491:1::4",
-      "kavlan-6": "2001:660:4406:492:1::4",
-      "kavlan-7": "2001:660:4406:493:1::4",
-      "kavlan-8": "2001:660:4406:494:1::4",
-      "kavlan-9": "2001:660:4406:495:1::4"
+      "kavlan-1": "2001:660:4406:480:1:0::4",
+      "kavlan-11": "2001:660:4406:1a0:401:0::4",
+      "kavlan-12": "2001:660:4406:2a0:401:0::4",
+      "kavlan-13": "2001:660:4406:4a0:401:0::4",
+      "kavlan-14": "2001:660:4406:5a0:401:0::4",
+      "kavlan-16": "2001:660:4406:7a0:401:0::4",
+      "kavlan-18": "2001:660:4406:8a0:401:0::4",
+      "kavlan-2": "2001:660:4406:481:1:0::4",
+      "kavlan-20": "2001:660:4406:3a0:401:0::4",
+      "kavlan-21": "2001:660:4406:6a0:401:0::4",
+      "kavlan-3": "2001:660:4406:482:1:0::4",
+      "kavlan-4": "2001:660:4406:490:1:0::4",
+      "kavlan-5": "2001:660:4406:491:1:0::4",
+      "kavlan-6": "2001:660:4406:492:1:0::4",
+      "kavlan-7": "2001:660:4406:493:1:0::4",
+      "kavlan-8": "2001:660:4406:494:1:0::4",
+      "kavlan-9": "2001:660:4406:495:1:0::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.4",
-      "ip6": "2001:660:4406:400:1::4",
+      "ip6": "2001:660:4406:400:1:0::4",
       "kavlan": true,
       "mac": "a0:36:9f:08:f8:6c",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-5.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-5.json
index d792823e58c..d9b4929d7d5 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-5.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::5",
-      "kavlan-11": "2001:660:4406:1a0:401::5",
-      "kavlan-12": "2001:660:4406:2a0:401::5",
-      "kavlan-13": "2001:660:4406:4a0:401::5",
-      "kavlan-14": "2001:660:4406:5a0:401::5",
-      "kavlan-16": "2001:660:4406:7a0:401::5",
-      "kavlan-18": "2001:660:4406:8a0:401::5",
-      "kavlan-2": "2001:660:4406:481:1::5",
-      "kavlan-20": "2001:660:4406:3a0:401::5",
-      "kavlan-21": "2001:660:4406:6a0:401::5",
-      "kavlan-3": "2001:660:4406:482:1::5",
-      "kavlan-4": "2001:660:4406:490:1::5",
-      "kavlan-5": "2001:660:4406:491:1::5",
-      "kavlan-6": "2001:660:4406:492:1::5",
-      "kavlan-7": "2001:660:4406:493:1::5",
-      "kavlan-8": "2001:660:4406:494:1::5",
-      "kavlan-9": "2001:660:4406:495:1::5"
+      "kavlan-1": "2001:660:4406:480:1:0::5",
+      "kavlan-11": "2001:660:4406:1a0:401:0::5",
+      "kavlan-12": "2001:660:4406:2a0:401:0::5",
+      "kavlan-13": "2001:660:4406:4a0:401:0::5",
+      "kavlan-14": "2001:660:4406:5a0:401:0::5",
+      "kavlan-16": "2001:660:4406:7a0:401:0::5",
+      "kavlan-18": "2001:660:4406:8a0:401:0::5",
+      "kavlan-2": "2001:660:4406:481:1:0::5",
+      "kavlan-20": "2001:660:4406:3a0:401:0::5",
+      "kavlan-21": "2001:660:4406:6a0:401:0::5",
+      "kavlan-3": "2001:660:4406:482:1:0::5",
+      "kavlan-4": "2001:660:4406:490:1:0::5",
+      "kavlan-5": "2001:660:4406:491:1:0::5",
+      "kavlan-6": "2001:660:4406:492:1:0::5",
+      "kavlan-7": "2001:660:4406:493:1:0::5",
+      "kavlan-8": "2001:660:4406:494:1:0::5",
+      "kavlan-9": "2001:660:4406:495:1:0::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.5",
-      "ip6": "2001:660:4406:400:1::5",
+      "ip6": "2001:660:4406:400:1:0::5",
       "kavlan": true,
       "mac": "a0:36:9f:09:c3:24",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-6.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-6.json
index b40495612bc..0766580c3ca 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-6.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::6",
-      "kavlan-11": "2001:660:4406:1a0:401::6",
-      "kavlan-12": "2001:660:4406:2a0:401::6",
-      "kavlan-13": "2001:660:4406:4a0:401::6",
-      "kavlan-14": "2001:660:4406:5a0:401::6",
-      "kavlan-16": "2001:660:4406:7a0:401::6",
-      "kavlan-18": "2001:660:4406:8a0:401::6",
-      "kavlan-2": "2001:660:4406:481:1::6",
-      "kavlan-20": "2001:660:4406:3a0:401::6",
-      "kavlan-21": "2001:660:4406:6a0:401::6",
-      "kavlan-3": "2001:660:4406:482:1::6",
-      "kavlan-4": "2001:660:4406:490:1::6",
-      "kavlan-5": "2001:660:4406:491:1::6",
-      "kavlan-6": "2001:660:4406:492:1::6",
-      "kavlan-7": "2001:660:4406:493:1::6",
-      "kavlan-8": "2001:660:4406:494:1::6",
-      "kavlan-9": "2001:660:4406:495:1::6"
+      "kavlan-1": "2001:660:4406:480:1:0::6",
+      "kavlan-11": "2001:660:4406:1a0:401:0::6",
+      "kavlan-12": "2001:660:4406:2a0:401:0::6",
+      "kavlan-13": "2001:660:4406:4a0:401:0::6",
+      "kavlan-14": "2001:660:4406:5a0:401:0::6",
+      "kavlan-16": "2001:660:4406:7a0:401:0::6",
+      "kavlan-18": "2001:660:4406:8a0:401:0::6",
+      "kavlan-2": "2001:660:4406:481:1:0::6",
+      "kavlan-20": "2001:660:4406:3a0:401:0::6",
+      "kavlan-21": "2001:660:4406:6a0:401:0::6",
+      "kavlan-3": "2001:660:4406:482:1:0::6",
+      "kavlan-4": "2001:660:4406:490:1:0::6",
+      "kavlan-5": "2001:660:4406:491:1:0::6",
+      "kavlan-6": "2001:660:4406:492:1:0::6",
+      "kavlan-7": "2001:660:4406:493:1:0::6",
+      "kavlan-8": "2001:660:4406:494:1:0::6",
+      "kavlan-9": "2001:660:4406:495:1:0::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.6",
-      "ip6": "2001:660:4406:400:1::6",
+      "ip6": "2001:660:4406:400:1:0::6",
       "kavlan": true,
       "mac": "a0:36:9f:08:fb:08",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-7.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-7.json
index d484fe2f0e7..1d52d20654c 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-7.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::7",
-      "kavlan-11": "2001:660:4406:1a0:401::7",
-      "kavlan-12": "2001:660:4406:2a0:401::7",
-      "kavlan-13": "2001:660:4406:4a0:401::7",
-      "kavlan-14": "2001:660:4406:5a0:401::7",
-      "kavlan-16": "2001:660:4406:7a0:401::7",
-      "kavlan-18": "2001:660:4406:8a0:401::7",
-      "kavlan-2": "2001:660:4406:481:1::7",
-      "kavlan-20": "2001:660:4406:3a0:401::7",
-      "kavlan-21": "2001:660:4406:6a0:401::7",
-      "kavlan-3": "2001:660:4406:482:1::7",
-      "kavlan-4": "2001:660:4406:490:1::7",
-      "kavlan-5": "2001:660:4406:491:1::7",
-      "kavlan-6": "2001:660:4406:492:1::7",
-      "kavlan-7": "2001:660:4406:493:1::7",
-      "kavlan-8": "2001:660:4406:494:1::7",
-      "kavlan-9": "2001:660:4406:495:1::7"
+      "kavlan-1": "2001:660:4406:480:1:0::7",
+      "kavlan-11": "2001:660:4406:1a0:401:0::7",
+      "kavlan-12": "2001:660:4406:2a0:401:0::7",
+      "kavlan-13": "2001:660:4406:4a0:401:0::7",
+      "kavlan-14": "2001:660:4406:5a0:401:0::7",
+      "kavlan-16": "2001:660:4406:7a0:401:0::7",
+      "kavlan-18": "2001:660:4406:8a0:401:0::7",
+      "kavlan-2": "2001:660:4406:481:1:0::7",
+      "kavlan-20": "2001:660:4406:3a0:401:0::7",
+      "kavlan-21": "2001:660:4406:6a0:401:0::7",
+      "kavlan-3": "2001:660:4406:482:1:0::7",
+      "kavlan-4": "2001:660:4406:490:1:0::7",
+      "kavlan-5": "2001:660:4406:491:1:0::7",
+      "kavlan-6": "2001:660:4406:492:1:0::7",
+      "kavlan-7": "2001:660:4406:493:1:0::7",
+      "kavlan-8": "2001:660:4406:494:1:0::7",
+      "kavlan-9": "2001:660:4406:495:1:0::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.7",
-      "ip6": "2001:660:4406:400:1::7",
+      "ip6": "2001:660:4406:400:1:0::7",
       "kavlan": true,
       "mac": "a0:36:9f:09:c2:f8",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-8.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-8.json
index 3134cd1221d..55bccc60a15 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-8.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::8",
-      "kavlan-11": "2001:660:4406:1a0:401::8",
-      "kavlan-12": "2001:660:4406:2a0:401::8",
-      "kavlan-13": "2001:660:4406:4a0:401::8",
-      "kavlan-14": "2001:660:4406:5a0:401::8",
-      "kavlan-16": "2001:660:4406:7a0:401::8",
-      "kavlan-18": "2001:660:4406:8a0:401::8",
-      "kavlan-2": "2001:660:4406:481:1::8",
-      "kavlan-20": "2001:660:4406:3a0:401::8",
-      "kavlan-21": "2001:660:4406:6a0:401::8",
-      "kavlan-3": "2001:660:4406:482:1::8",
-      "kavlan-4": "2001:660:4406:490:1::8",
-      "kavlan-5": "2001:660:4406:491:1::8",
-      "kavlan-6": "2001:660:4406:492:1::8",
-      "kavlan-7": "2001:660:4406:493:1::8",
-      "kavlan-8": "2001:660:4406:494:1::8",
-      "kavlan-9": "2001:660:4406:495:1::8"
+      "kavlan-1": "2001:660:4406:480:1:0::8",
+      "kavlan-11": "2001:660:4406:1a0:401:0::8",
+      "kavlan-12": "2001:660:4406:2a0:401:0::8",
+      "kavlan-13": "2001:660:4406:4a0:401:0::8",
+      "kavlan-14": "2001:660:4406:5a0:401:0::8",
+      "kavlan-16": "2001:660:4406:7a0:401:0::8",
+      "kavlan-18": "2001:660:4406:8a0:401:0::8",
+      "kavlan-2": "2001:660:4406:481:1:0::8",
+      "kavlan-20": "2001:660:4406:3a0:401:0::8",
+      "kavlan-21": "2001:660:4406:6a0:401:0::8",
+      "kavlan-3": "2001:660:4406:482:1:0::8",
+      "kavlan-4": "2001:660:4406:490:1:0::8",
+      "kavlan-5": "2001:660:4406:491:1:0::8",
+      "kavlan-6": "2001:660:4406:492:1:0::8",
+      "kavlan-7": "2001:660:4406:493:1:0::8",
+      "kavlan-8": "2001:660:4406:494:1:0::8",
+      "kavlan-9": "2001:660:4406:495:1:0::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.8",
-      "ip6": "2001:660:4406:400:1::8",
+      "ip6": "2001:660:4406:400:1:0::8",
       "kavlan": true,
       "mac": "a0:36:9f:09:c0:14",
       "management": false,
diff --git a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-9.json b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-9.json
index e5429c01539..a561a58a2c9 100644
--- a/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-9.json
+++ b/data/grid5000/sites/lyon/clusters/taurus/nodes/taurus-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:480:1::9",
-      "kavlan-11": "2001:660:4406:1a0:401::9",
-      "kavlan-12": "2001:660:4406:2a0:401::9",
-      "kavlan-13": "2001:660:4406:4a0:401::9",
-      "kavlan-14": "2001:660:4406:5a0:401::9",
-      "kavlan-16": "2001:660:4406:7a0:401::9",
-      "kavlan-18": "2001:660:4406:8a0:401::9",
-      "kavlan-2": "2001:660:4406:481:1::9",
-      "kavlan-20": "2001:660:4406:3a0:401::9",
-      "kavlan-21": "2001:660:4406:6a0:401::9",
-      "kavlan-3": "2001:660:4406:482:1::9",
-      "kavlan-4": "2001:660:4406:490:1::9",
-      "kavlan-5": "2001:660:4406:491:1::9",
-      "kavlan-6": "2001:660:4406:492:1::9",
-      "kavlan-7": "2001:660:4406:493:1::9",
-      "kavlan-8": "2001:660:4406:494:1::9",
-      "kavlan-9": "2001:660:4406:495:1::9"
+      "kavlan-1": "2001:660:4406:480:1:0::9",
+      "kavlan-11": "2001:660:4406:1a0:401:0::9",
+      "kavlan-12": "2001:660:4406:2a0:401:0::9",
+      "kavlan-13": "2001:660:4406:4a0:401:0::9",
+      "kavlan-14": "2001:660:4406:5a0:401:0::9",
+      "kavlan-16": "2001:660:4406:7a0:401:0::9",
+      "kavlan-18": "2001:660:4406:8a0:401:0::9",
+      "kavlan-2": "2001:660:4406:481:1:0::9",
+      "kavlan-20": "2001:660:4406:3a0:401:0::9",
+      "kavlan-21": "2001:660:4406:6a0:401:0::9",
+      "kavlan-3": "2001:660:4406:482:1:0::9",
+      "kavlan-4": "2001:660:4406:490:1:0::9",
+      "kavlan-5": "2001:660:4406:491:1:0::9",
+      "kavlan-6": "2001:660:4406:492:1:0::9",
+      "kavlan-7": "2001:660:4406:493:1:0::9",
+      "kavlan-8": "2001:660:4406:494:1:0::9",
+      "kavlan-9": "2001:660:4406:495:1:0::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095d, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.48.9",
-      "ip6": "2001:660:4406:400:1::9",
+      "ip6": "2001:660:4406:400:1:0::9",
       "kavlan": true,
       "mac": "a0:36:9f:08:f8:48",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json
index 4187cb2acf4..7fd12df9fef 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-1.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::1",
-      "kavlan-11": "2001:660:4406:1a0:501::1",
-      "kavlan-12": "2001:660:4406:2a0:501::1",
-      "kavlan-13": "2001:660:4406:4a0:501::1",
-      "kavlan-14": "2001:660:4406:5a0:501::1",
-      "kavlan-16": "2001:660:4406:7a0:501::1",
-      "kavlan-18": "2001:660:4406:8a0:501::1",
-      "kavlan-2": "2001:660:4406:581:1::1",
-      "kavlan-20": "2001:660:4406:3a0:501::1",
-      "kavlan-21": "2001:660:4406:6a0:501::1",
-      "kavlan-3": "2001:660:4406:582:1::1",
-      "kavlan-4": "2001:660:4406:590:1::1",
-      "kavlan-5": "2001:660:4406:591:1::1",
-      "kavlan-6": "2001:660:4406:592:1::1",
-      "kavlan-7": "2001:660:4406:593:1::1",
-      "kavlan-8": "2001:660:4406:594:1::1",
-      "kavlan-9": "2001:660:4406:595:1::1"
+      "kavlan-1": "2001:660:4406:580:1:0::1",
+      "kavlan-11": "2001:660:4406:1a0:501:0::1",
+      "kavlan-12": "2001:660:4406:2a0:501:0::1",
+      "kavlan-13": "2001:660:4406:4a0:501:0::1",
+      "kavlan-14": "2001:660:4406:5a0:501:0::1",
+      "kavlan-16": "2001:660:4406:7a0:501:0::1",
+      "kavlan-18": "2001:660:4406:8a0:501:0::1",
+      "kavlan-2": "2001:660:4406:581:1:0::1",
+      "kavlan-20": "2001:660:4406:3a0:501:0::1",
+      "kavlan-21": "2001:660:4406:6a0:501:0::1",
+      "kavlan-3": "2001:660:4406:582:1:0::1",
+      "kavlan-4": "2001:660:4406:590:1:0::1",
+      "kavlan-5": "2001:660:4406:591:1:0::1",
+      "kavlan-6": "2001:660:4406:592:1:0::1",
+      "kavlan-7": "2001:660:4406:593:1:0::1",
+      "kavlan-8": "2001:660:4406:594:1:0::1",
+      "kavlan-9": "2001:660:4406:595:1:0::1"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.1",
-      "ip6": "2001:660:4406:500:1::1",
+      "ip6": "2001:660:4406:500:1:0::1",
       "kavlan": true,
       "mac": "f8:f2:1e:60:41:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-10.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-10.json
index 6e3434d55c9..b3e94dfd2be 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-10.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-10.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::a",
-      "kavlan-11": "2001:660:4406:1a0:501::a",
-      "kavlan-12": "2001:660:4406:2a0:501::a",
-      "kavlan-13": "2001:660:4406:4a0:501::a",
-      "kavlan-14": "2001:660:4406:5a0:501::a",
-      "kavlan-16": "2001:660:4406:7a0:501::a",
-      "kavlan-18": "2001:660:4406:8a0:501::a",
-      "kavlan-2": "2001:660:4406:581:1::a",
-      "kavlan-20": "2001:660:4406:3a0:501::a",
-      "kavlan-21": "2001:660:4406:6a0:501::a",
-      "kavlan-3": "2001:660:4406:582:1::a",
-      "kavlan-4": "2001:660:4406:590:1::a",
-      "kavlan-5": "2001:660:4406:591:1::a",
-      "kavlan-6": "2001:660:4406:592:1::a",
-      "kavlan-7": "2001:660:4406:593:1::a",
-      "kavlan-8": "2001:660:4406:594:1::a",
-      "kavlan-9": "2001:660:4406:595:1::a"
+      "kavlan-1": "2001:660:4406:580:1:0::a",
+      "kavlan-11": "2001:660:4406:1a0:501:0::a",
+      "kavlan-12": "2001:660:4406:2a0:501:0::a",
+      "kavlan-13": "2001:660:4406:4a0:501:0::a",
+      "kavlan-14": "2001:660:4406:5a0:501:0::a",
+      "kavlan-16": "2001:660:4406:7a0:501:0::a",
+      "kavlan-18": "2001:660:4406:8a0:501:0::a",
+      "kavlan-2": "2001:660:4406:581:1:0::a",
+      "kavlan-20": "2001:660:4406:3a0:501:0::a",
+      "kavlan-21": "2001:660:4406:6a0:501:0::a",
+      "kavlan-3": "2001:660:4406:582:1:0::a",
+      "kavlan-4": "2001:660:4406:590:1:0::a",
+      "kavlan-5": "2001:660:4406:591:1:0::a",
+      "kavlan-6": "2001:660:4406:592:1:0::a",
+      "kavlan-7": "2001:660:4406:593:1:0::a",
+      "kavlan-8": "2001:660:4406:594:1:0::a",
+      "kavlan-9": "2001:660:4406:595:1:0::a"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.10",
-      "ip6": "2001:660:4406:500:1::a",
+      "ip6": "2001:660:4406:500:1:0::a",
       "kavlan": true,
       "mac": "f8:f2:1e:60:2b:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-11.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-11.json
index afff76f1f60..3ce3de15fe9 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-11.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-11.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::b",
-      "kavlan-11": "2001:660:4406:1a0:501::b",
-      "kavlan-12": "2001:660:4406:2a0:501::b",
-      "kavlan-13": "2001:660:4406:4a0:501::b",
-      "kavlan-14": "2001:660:4406:5a0:501::b",
-      "kavlan-16": "2001:660:4406:7a0:501::b",
-      "kavlan-18": "2001:660:4406:8a0:501::b",
-      "kavlan-2": "2001:660:4406:581:1::b",
-      "kavlan-20": "2001:660:4406:3a0:501::b",
-      "kavlan-21": "2001:660:4406:6a0:501::b",
-      "kavlan-3": "2001:660:4406:582:1::b",
-      "kavlan-4": "2001:660:4406:590:1::b",
-      "kavlan-5": "2001:660:4406:591:1::b",
-      "kavlan-6": "2001:660:4406:592:1::b",
-      "kavlan-7": "2001:660:4406:593:1::b",
-      "kavlan-8": "2001:660:4406:594:1::b",
-      "kavlan-9": "2001:660:4406:595:1::b"
+      "kavlan-1": "2001:660:4406:580:1:0::b",
+      "kavlan-11": "2001:660:4406:1a0:501:0::b",
+      "kavlan-12": "2001:660:4406:2a0:501:0::b",
+      "kavlan-13": "2001:660:4406:4a0:501:0::b",
+      "kavlan-14": "2001:660:4406:5a0:501:0::b",
+      "kavlan-16": "2001:660:4406:7a0:501:0::b",
+      "kavlan-18": "2001:660:4406:8a0:501:0::b",
+      "kavlan-2": "2001:660:4406:581:1:0::b",
+      "kavlan-20": "2001:660:4406:3a0:501:0::b",
+      "kavlan-21": "2001:660:4406:6a0:501:0::b",
+      "kavlan-3": "2001:660:4406:582:1:0::b",
+      "kavlan-4": "2001:660:4406:590:1:0::b",
+      "kavlan-5": "2001:660:4406:591:1:0::b",
+      "kavlan-6": "2001:660:4406:592:1:0::b",
+      "kavlan-7": "2001:660:4406:593:1:0::b",
+      "kavlan-8": "2001:660:4406:594:1:0::b",
+      "kavlan-9": "2001:660:4406:595:1:0::b"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.11",
-      "ip6": "2001:660:4406:500:1::b",
+      "ip6": "2001:660:4406:500:1:0::b",
       "kavlan": true,
       "mac": "f8:f2:1e:60:3f:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-12.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-12.json
index 87944644f62..7e71cf7d1c4 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-12.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-12.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::c",
-      "kavlan-11": "2001:660:4406:1a0:501::c",
-      "kavlan-12": "2001:660:4406:2a0:501::c",
-      "kavlan-13": "2001:660:4406:4a0:501::c",
-      "kavlan-14": "2001:660:4406:5a0:501::c",
-      "kavlan-16": "2001:660:4406:7a0:501::c",
-      "kavlan-18": "2001:660:4406:8a0:501::c",
-      "kavlan-2": "2001:660:4406:581:1::c",
-      "kavlan-20": "2001:660:4406:3a0:501::c",
-      "kavlan-21": "2001:660:4406:6a0:501::c",
-      "kavlan-3": "2001:660:4406:582:1::c",
-      "kavlan-4": "2001:660:4406:590:1::c",
-      "kavlan-5": "2001:660:4406:591:1::c",
-      "kavlan-6": "2001:660:4406:592:1::c",
-      "kavlan-7": "2001:660:4406:593:1::c",
-      "kavlan-8": "2001:660:4406:594:1::c",
-      "kavlan-9": "2001:660:4406:595:1::c"
+      "kavlan-1": "2001:660:4406:580:1:0::c",
+      "kavlan-11": "2001:660:4406:1a0:501:0::c",
+      "kavlan-12": "2001:660:4406:2a0:501:0::c",
+      "kavlan-13": "2001:660:4406:4a0:501:0::c",
+      "kavlan-14": "2001:660:4406:5a0:501:0::c",
+      "kavlan-16": "2001:660:4406:7a0:501:0::c",
+      "kavlan-18": "2001:660:4406:8a0:501:0::c",
+      "kavlan-2": "2001:660:4406:581:1:0::c",
+      "kavlan-20": "2001:660:4406:3a0:501:0::c",
+      "kavlan-21": "2001:660:4406:6a0:501:0::c",
+      "kavlan-3": "2001:660:4406:582:1:0::c",
+      "kavlan-4": "2001:660:4406:590:1:0::c",
+      "kavlan-5": "2001:660:4406:591:1:0::c",
+      "kavlan-6": "2001:660:4406:592:1:0::c",
+      "kavlan-7": "2001:660:4406:593:1:0::c",
+      "kavlan-8": "2001:660:4406:594:1:0::c",
+      "kavlan-9": "2001:660:4406:595:1:0::c"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.12",
-      "ip6": "2001:660:4406:500:1::c",
+      "ip6": "2001:660:4406:500:1:0::c",
       "kavlan": true,
       "mac": "f8:f2:1e:60:32:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-13.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-13.json
index ef78a1bb4dd..8aa258ad24f 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-13.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-13.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::d",
-      "kavlan-11": "2001:660:4406:1a0:501::d",
-      "kavlan-12": "2001:660:4406:2a0:501::d",
-      "kavlan-13": "2001:660:4406:4a0:501::d",
-      "kavlan-14": "2001:660:4406:5a0:501::d",
-      "kavlan-16": "2001:660:4406:7a0:501::d",
-      "kavlan-18": "2001:660:4406:8a0:501::d",
-      "kavlan-2": "2001:660:4406:581:1::d",
-      "kavlan-20": "2001:660:4406:3a0:501::d",
-      "kavlan-21": "2001:660:4406:6a0:501::d",
-      "kavlan-3": "2001:660:4406:582:1::d",
-      "kavlan-4": "2001:660:4406:590:1::d",
-      "kavlan-5": "2001:660:4406:591:1::d",
-      "kavlan-6": "2001:660:4406:592:1::d",
-      "kavlan-7": "2001:660:4406:593:1::d",
-      "kavlan-8": "2001:660:4406:594:1::d",
-      "kavlan-9": "2001:660:4406:595:1::d"
+      "kavlan-1": "2001:660:4406:580:1:0::d",
+      "kavlan-11": "2001:660:4406:1a0:501:0::d",
+      "kavlan-12": "2001:660:4406:2a0:501:0::d",
+      "kavlan-13": "2001:660:4406:4a0:501:0::d",
+      "kavlan-14": "2001:660:4406:5a0:501:0::d",
+      "kavlan-16": "2001:660:4406:7a0:501:0::d",
+      "kavlan-18": "2001:660:4406:8a0:501:0::d",
+      "kavlan-2": "2001:660:4406:581:1:0::d",
+      "kavlan-20": "2001:660:4406:3a0:501:0::d",
+      "kavlan-21": "2001:660:4406:6a0:501:0::d",
+      "kavlan-3": "2001:660:4406:582:1:0::d",
+      "kavlan-4": "2001:660:4406:590:1:0::d",
+      "kavlan-5": "2001:660:4406:591:1:0::d",
+      "kavlan-6": "2001:660:4406:592:1:0::d",
+      "kavlan-7": "2001:660:4406:593:1:0::d",
+      "kavlan-8": "2001:660:4406:594:1:0::d",
+      "kavlan-9": "2001:660:4406:595:1:0::d"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.13",
-      "ip6": "2001:660:4406:500:1::d",
+      "ip6": "2001:660:4406:500:1:0::d",
       "kavlan": true,
       "mac": "f8:f2:1e:60:57:60",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-2.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-2.json
index 98e0997c10c..b3744d7f64e 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-2.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-2.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::2",
-      "kavlan-11": "2001:660:4406:1a0:501::2",
-      "kavlan-12": "2001:660:4406:2a0:501::2",
-      "kavlan-13": "2001:660:4406:4a0:501::2",
-      "kavlan-14": "2001:660:4406:5a0:501::2",
-      "kavlan-16": "2001:660:4406:7a0:501::2",
-      "kavlan-18": "2001:660:4406:8a0:501::2",
-      "kavlan-2": "2001:660:4406:581:1::2",
-      "kavlan-20": "2001:660:4406:3a0:501::2",
-      "kavlan-21": "2001:660:4406:6a0:501::2",
-      "kavlan-3": "2001:660:4406:582:1::2",
-      "kavlan-4": "2001:660:4406:590:1::2",
-      "kavlan-5": "2001:660:4406:591:1::2",
-      "kavlan-6": "2001:660:4406:592:1::2",
-      "kavlan-7": "2001:660:4406:593:1::2",
-      "kavlan-8": "2001:660:4406:594:1::2",
-      "kavlan-9": "2001:660:4406:595:1::2"
+      "kavlan-1": "2001:660:4406:580:1:0::2",
+      "kavlan-11": "2001:660:4406:1a0:501:0::2",
+      "kavlan-12": "2001:660:4406:2a0:501:0::2",
+      "kavlan-13": "2001:660:4406:4a0:501:0::2",
+      "kavlan-14": "2001:660:4406:5a0:501:0::2",
+      "kavlan-16": "2001:660:4406:7a0:501:0::2",
+      "kavlan-18": "2001:660:4406:8a0:501:0::2",
+      "kavlan-2": "2001:660:4406:581:1:0::2",
+      "kavlan-20": "2001:660:4406:3a0:501:0::2",
+      "kavlan-21": "2001:660:4406:6a0:501:0::2",
+      "kavlan-3": "2001:660:4406:582:1:0::2",
+      "kavlan-4": "2001:660:4406:590:1:0::2",
+      "kavlan-5": "2001:660:4406:591:1:0::2",
+      "kavlan-6": "2001:660:4406:592:1:0::2",
+      "kavlan-7": "2001:660:4406:593:1:0::2",
+      "kavlan-8": "2001:660:4406:594:1:0::2",
+      "kavlan-9": "2001:660:4406:595:1:0::2"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.2",
-      "ip6": "2001:660:4406:500:1::2",
+      "ip6": "2001:660:4406:500:1:0::2",
       "kavlan": true,
       "mac": "f8:f2:1e:60:3f:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-3.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-3.json
index 00557050319..fbca840d08c 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-3.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-3.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::3",
-      "kavlan-11": "2001:660:4406:1a0:501::3",
-      "kavlan-12": "2001:660:4406:2a0:501::3",
-      "kavlan-13": "2001:660:4406:4a0:501::3",
-      "kavlan-14": "2001:660:4406:5a0:501::3",
-      "kavlan-16": "2001:660:4406:7a0:501::3",
-      "kavlan-18": "2001:660:4406:8a0:501::3",
-      "kavlan-2": "2001:660:4406:581:1::3",
-      "kavlan-20": "2001:660:4406:3a0:501::3",
-      "kavlan-21": "2001:660:4406:6a0:501::3",
-      "kavlan-3": "2001:660:4406:582:1::3",
-      "kavlan-4": "2001:660:4406:590:1::3",
-      "kavlan-5": "2001:660:4406:591:1::3",
-      "kavlan-6": "2001:660:4406:592:1::3",
-      "kavlan-7": "2001:660:4406:593:1::3",
-      "kavlan-8": "2001:660:4406:594:1::3",
-      "kavlan-9": "2001:660:4406:595:1::3"
+      "kavlan-1": "2001:660:4406:580:1:0::3",
+      "kavlan-11": "2001:660:4406:1a0:501:0::3",
+      "kavlan-12": "2001:660:4406:2a0:501:0::3",
+      "kavlan-13": "2001:660:4406:4a0:501:0::3",
+      "kavlan-14": "2001:660:4406:5a0:501:0::3",
+      "kavlan-16": "2001:660:4406:7a0:501:0::3",
+      "kavlan-18": "2001:660:4406:8a0:501:0::3",
+      "kavlan-2": "2001:660:4406:581:1:0::3",
+      "kavlan-20": "2001:660:4406:3a0:501:0::3",
+      "kavlan-21": "2001:660:4406:6a0:501:0::3",
+      "kavlan-3": "2001:660:4406:582:1:0::3",
+      "kavlan-4": "2001:660:4406:590:1:0::3",
+      "kavlan-5": "2001:660:4406:591:1:0::3",
+      "kavlan-6": "2001:660:4406:592:1:0::3",
+      "kavlan-7": "2001:660:4406:593:1:0::3",
+      "kavlan-8": "2001:660:4406:594:1:0::3",
+      "kavlan-9": "2001:660:4406:595:1:0::3"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.3",
-      "ip6": "2001:660:4406:500:1::3",
+      "ip6": "2001:660:4406:500:1:0::3",
       "kavlan": true,
       "mac": "f8:f2:1e:60:41:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-4.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-4.json
index c7c55745a1a..1e812fe8e74 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-4.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-4.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::4",
-      "kavlan-11": "2001:660:4406:1a0:501::4",
-      "kavlan-12": "2001:660:4406:2a0:501::4",
-      "kavlan-13": "2001:660:4406:4a0:501::4",
-      "kavlan-14": "2001:660:4406:5a0:501::4",
-      "kavlan-16": "2001:660:4406:7a0:501::4",
-      "kavlan-18": "2001:660:4406:8a0:501::4",
-      "kavlan-2": "2001:660:4406:581:1::4",
-      "kavlan-20": "2001:660:4406:3a0:501::4",
-      "kavlan-21": "2001:660:4406:6a0:501::4",
-      "kavlan-3": "2001:660:4406:582:1::4",
-      "kavlan-4": "2001:660:4406:590:1::4",
-      "kavlan-5": "2001:660:4406:591:1::4",
-      "kavlan-6": "2001:660:4406:592:1::4",
-      "kavlan-7": "2001:660:4406:593:1::4",
-      "kavlan-8": "2001:660:4406:594:1::4",
-      "kavlan-9": "2001:660:4406:595:1::4"
+      "kavlan-1": "2001:660:4406:580:1:0::4",
+      "kavlan-11": "2001:660:4406:1a0:501:0::4",
+      "kavlan-12": "2001:660:4406:2a0:501:0::4",
+      "kavlan-13": "2001:660:4406:4a0:501:0::4",
+      "kavlan-14": "2001:660:4406:5a0:501:0::4",
+      "kavlan-16": "2001:660:4406:7a0:501:0::4",
+      "kavlan-18": "2001:660:4406:8a0:501:0::4",
+      "kavlan-2": "2001:660:4406:581:1:0::4",
+      "kavlan-20": "2001:660:4406:3a0:501:0::4",
+      "kavlan-21": "2001:660:4406:6a0:501:0::4",
+      "kavlan-3": "2001:660:4406:582:1:0::4",
+      "kavlan-4": "2001:660:4406:590:1:0::4",
+      "kavlan-5": "2001:660:4406:591:1:0::4",
+      "kavlan-6": "2001:660:4406:592:1:0::4",
+      "kavlan-7": "2001:660:4406:593:1:0::4",
+      "kavlan-8": "2001:660:4406:594:1:0::4",
+      "kavlan-9": "2001:660:4406:595:1:0::4"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.4",
-      "ip6": "2001:660:4406:500:1::4",
+      "ip6": "2001:660:4406:500:1:0::4",
       "kavlan": true,
       "mac": "f8:f2:1e:60:28:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-5.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-5.json
index fbd4abb48e4..33c88fcdb99 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-5.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-5.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::5",
-      "kavlan-11": "2001:660:4406:1a0:501::5",
-      "kavlan-12": "2001:660:4406:2a0:501::5",
-      "kavlan-13": "2001:660:4406:4a0:501::5",
-      "kavlan-14": "2001:660:4406:5a0:501::5",
-      "kavlan-16": "2001:660:4406:7a0:501::5",
-      "kavlan-18": "2001:660:4406:8a0:501::5",
-      "kavlan-2": "2001:660:4406:581:1::5",
-      "kavlan-20": "2001:660:4406:3a0:501::5",
-      "kavlan-21": "2001:660:4406:6a0:501::5",
-      "kavlan-3": "2001:660:4406:582:1::5",
-      "kavlan-4": "2001:660:4406:590:1::5",
-      "kavlan-5": "2001:660:4406:591:1::5",
-      "kavlan-6": "2001:660:4406:592:1::5",
-      "kavlan-7": "2001:660:4406:593:1::5",
-      "kavlan-8": "2001:660:4406:594:1::5",
-      "kavlan-9": "2001:660:4406:595:1::5"
+      "kavlan-1": "2001:660:4406:580:1:0::5",
+      "kavlan-11": "2001:660:4406:1a0:501:0::5",
+      "kavlan-12": "2001:660:4406:2a0:501:0::5",
+      "kavlan-13": "2001:660:4406:4a0:501:0::5",
+      "kavlan-14": "2001:660:4406:5a0:501:0::5",
+      "kavlan-16": "2001:660:4406:7a0:501:0::5",
+      "kavlan-18": "2001:660:4406:8a0:501:0::5",
+      "kavlan-2": "2001:660:4406:581:1:0::5",
+      "kavlan-20": "2001:660:4406:3a0:501:0::5",
+      "kavlan-21": "2001:660:4406:6a0:501:0::5",
+      "kavlan-3": "2001:660:4406:582:1:0::5",
+      "kavlan-4": "2001:660:4406:590:1:0::5",
+      "kavlan-5": "2001:660:4406:591:1:0::5",
+      "kavlan-6": "2001:660:4406:592:1:0::5",
+      "kavlan-7": "2001:660:4406:593:1:0::5",
+      "kavlan-8": "2001:660:4406:594:1:0::5",
+      "kavlan-9": "2001:660:4406:595:1:0::5"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.5",
-      "ip6": "2001:660:4406:500:1::5",
+      "ip6": "2001:660:4406:500:1:0::5",
       "kavlan": true,
       "mac": "f8:f2:1e:60:28:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-6.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-6.json
index 42c52f890ec..f77993214fd 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-6.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-6.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::6",
-      "kavlan-11": "2001:660:4406:1a0:501::6",
-      "kavlan-12": "2001:660:4406:2a0:501::6",
-      "kavlan-13": "2001:660:4406:4a0:501::6",
-      "kavlan-14": "2001:660:4406:5a0:501::6",
-      "kavlan-16": "2001:660:4406:7a0:501::6",
-      "kavlan-18": "2001:660:4406:8a0:501::6",
-      "kavlan-2": "2001:660:4406:581:1::6",
-      "kavlan-20": "2001:660:4406:3a0:501::6",
-      "kavlan-21": "2001:660:4406:6a0:501::6",
-      "kavlan-3": "2001:660:4406:582:1::6",
-      "kavlan-4": "2001:660:4406:590:1::6",
-      "kavlan-5": "2001:660:4406:591:1::6",
-      "kavlan-6": "2001:660:4406:592:1::6",
-      "kavlan-7": "2001:660:4406:593:1::6",
-      "kavlan-8": "2001:660:4406:594:1::6",
-      "kavlan-9": "2001:660:4406:595:1::6"
+      "kavlan-1": "2001:660:4406:580:1:0::6",
+      "kavlan-11": "2001:660:4406:1a0:501:0::6",
+      "kavlan-12": "2001:660:4406:2a0:501:0::6",
+      "kavlan-13": "2001:660:4406:4a0:501:0::6",
+      "kavlan-14": "2001:660:4406:5a0:501:0::6",
+      "kavlan-16": "2001:660:4406:7a0:501:0::6",
+      "kavlan-18": "2001:660:4406:8a0:501:0::6",
+      "kavlan-2": "2001:660:4406:581:1:0::6",
+      "kavlan-20": "2001:660:4406:3a0:501:0::6",
+      "kavlan-21": "2001:660:4406:6a0:501:0::6",
+      "kavlan-3": "2001:660:4406:582:1:0::6",
+      "kavlan-4": "2001:660:4406:590:1:0::6",
+      "kavlan-5": "2001:660:4406:591:1:0::6",
+      "kavlan-6": "2001:660:4406:592:1:0::6",
+      "kavlan-7": "2001:660:4406:593:1:0::6",
+      "kavlan-8": "2001:660:4406:594:1:0::6",
+      "kavlan-9": "2001:660:4406:595:1:0::6"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.6",
-      "ip6": "2001:660:4406:500:1::6",
+      "ip6": "2001:660:4406:500:1:0::6",
       "kavlan": true,
       "mac": "f8:f2:1e:60:57:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-7.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-7.json
index 46f6da718d6..0cab122cceb 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-7.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-7.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::7",
-      "kavlan-11": "2001:660:4406:1a0:501::7",
-      "kavlan-12": "2001:660:4406:2a0:501::7",
-      "kavlan-13": "2001:660:4406:4a0:501::7",
-      "kavlan-14": "2001:660:4406:5a0:501::7",
-      "kavlan-16": "2001:660:4406:7a0:501::7",
-      "kavlan-18": "2001:660:4406:8a0:501::7",
-      "kavlan-2": "2001:660:4406:581:1::7",
-      "kavlan-20": "2001:660:4406:3a0:501::7",
-      "kavlan-21": "2001:660:4406:6a0:501::7",
-      "kavlan-3": "2001:660:4406:582:1::7",
-      "kavlan-4": "2001:660:4406:590:1::7",
-      "kavlan-5": "2001:660:4406:591:1::7",
-      "kavlan-6": "2001:660:4406:592:1::7",
-      "kavlan-7": "2001:660:4406:593:1::7",
-      "kavlan-8": "2001:660:4406:594:1::7",
-      "kavlan-9": "2001:660:4406:595:1::7"
+      "kavlan-1": "2001:660:4406:580:1:0::7",
+      "kavlan-11": "2001:660:4406:1a0:501:0::7",
+      "kavlan-12": "2001:660:4406:2a0:501:0::7",
+      "kavlan-13": "2001:660:4406:4a0:501:0::7",
+      "kavlan-14": "2001:660:4406:5a0:501:0::7",
+      "kavlan-16": "2001:660:4406:7a0:501:0::7",
+      "kavlan-18": "2001:660:4406:8a0:501:0::7",
+      "kavlan-2": "2001:660:4406:581:1:0::7",
+      "kavlan-20": "2001:660:4406:3a0:501:0::7",
+      "kavlan-21": "2001:660:4406:6a0:501:0::7",
+      "kavlan-3": "2001:660:4406:582:1:0::7",
+      "kavlan-4": "2001:660:4406:590:1:0::7",
+      "kavlan-5": "2001:660:4406:591:1:0::7",
+      "kavlan-6": "2001:660:4406:592:1:0::7",
+      "kavlan-7": "2001:660:4406:593:1:0::7",
+      "kavlan-8": "2001:660:4406:594:1:0::7",
+      "kavlan-9": "2001:660:4406:595:1:0::7"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.7",
-      "ip6": "2001:660:4406:500:1::7",
+      "ip6": "2001:660:4406:500:1:0::7",
       "kavlan": true,
       "mac": "f8:f2:1e:60:26:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-8.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-8.json
index 7afa40e2922..b55ea9cc44c 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-8.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-8.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::8",
-      "kavlan-11": "2001:660:4406:1a0:501::8",
-      "kavlan-12": "2001:660:4406:2a0:501::8",
-      "kavlan-13": "2001:660:4406:4a0:501::8",
-      "kavlan-14": "2001:660:4406:5a0:501::8",
-      "kavlan-16": "2001:660:4406:7a0:501::8",
-      "kavlan-18": "2001:660:4406:8a0:501::8",
-      "kavlan-2": "2001:660:4406:581:1::8",
-      "kavlan-20": "2001:660:4406:3a0:501::8",
-      "kavlan-21": "2001:660:4406:6a0:501::8",
-      "kavlan-3": "2001:660:4406:582:1::8",
-      "kavlan-4": "2001:660:4406:590:1::8",
-      "kavlan-5": "2001:660:4406:591:1::8",
-      "kavlan-6": "2001:660:4406:592:1::8",
-      "kavlan-7": "2001:660:4406:593:1::8",
-      "kavlan-8": "2001:660:4406:594:1::8",
-      "kavlan-9": "2001:660:4406:595:1::8"
+      "kavlan-1": "2001:660:4406:580:1:0::8",
+      "kavlan-11": "2001:660:4406:1a0:501:0::8",
+      "kavlan-12": "2001:660:4406:2a0:501:0::8",
+      "kavlan-13": "2001:660:4406:4a0:501:0::8",
+      "kavlan-14": "2001:660:4406:5a0:501:0::8",
+      "kavlan-16": "2001:660:4406:7a0:501:0::8",
+      "kavlan-18": "2001:660:4406:8a0:501:0::8",
+      "kavlan-2": "2001:660:4406:581:1:0::8",
+      "kavlan-20": "2001:660:4406:3a0:501:0::8",
+      "kavlan-21": "2001:660:4406:6a0:501:0::8",
+      "kavlan-3": "2001:660:4406:582:1:0::8",
+      "kavlan-4": "2001:660:4406:590:1:0::8",
+      "kavlan-5": "2001:660:4406:591:1:0::8",
+      "kavlan-6": "2001:660:4406:592:1:0::8",
+      "kavlan-7": "2001:660:4406:593:1:0::8",
+      "kavlan-8": "2001:660:4406:594:1:0::8",
+      "kavlan-9": "2001:660:4406:595:1:0::8"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.8",
-      "ip6": "2001:660:4406:500:1::8",
+      "ip6": "2001:660:4406:500:1:0::8",
       "kavlan": true,
       "mac": "f8:f2:1e:60:35:30",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-9.json b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-9.json
index 242c5855f55..0a9e46e4b28 100644
--- a/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-9.json
+++ b/data/grid5000/sites/nancy/clusters/graffiti/nodes/graffiti-9.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth2": {
-      "kavlan-1": "2001:660:4406:580:1::9",
-      "kavlan-11": "2001:660:4406:1a0:501::9",
-      "kavlan-12": "2001:660:4406:2a0:501::9",
-      "kavlan-13": "2001:660:4406:4a0:501::9",
-      "kavlan-14": "2001:660:4406:5a0:501::9",
-      "kavlan-16": "2001:660:4406:7a0:501::9",
-      "kavlan-18": "2001:660:4406:8a0:501::9",
-      "kavlan-2": "2001:660:4406:581:1::9",
-      "kavlan-20": "2001:660:4406:3a0:501::9",
-      "kavlan-21": "2001:660:4406:6a0:501::9",
-      "kavlan-3": "2001:660:4406:582:1::9",
-      "kavlan-4": "2001:660:4406:590:1::9",
-      "kavlan-5": "2001:660:4406:591:1::9",
-      "kavlan-6": "2001:660:4406:592:1::9",
-      "kavlan-7": "2001:660:4406:593:1::9",
-      "kavlan-8": "2001:660:4406:594:1::9",
-      "kavlan-9": "2001:660:4406:595:1::9"
+      "kavlan-1": "2001:660:4406:580:1:0::9",
+      "kavlan-11": "2001:660:4406:1a0:501:0::9",
+      "kavlan-12": "2001:660:4406:2a0:501:0::9",
+      "kavlan-13": "2001:660:4406:4a0:501:0::9",
+      "kavlan-14": "2001:660:4406:5a0:501:0::9",
+      "kavlan-16": "2001:660:4406:7a0:501:0::9",
+      "kavlan-18": "2001:660:4406:8a0:501:0::9",
+      "kavlan-2": "2001:660:4406:581:1:0::9",
+      "kavlan-20": "2001:660:4406:3a0:501:0::9",
+      "kavlan-21": "2001:660:4406:6a0:501:0::9",
+      "kavlan-3": "2001:660:4406:582:1:0::9",
+      "kavlan-4": "2001:660:4406:590:1:0::9",
+      "kavlan-5": "2001:660:4406:591:1:0::9",
+      "kavlan-6": "2001:660:4406:592:1:0::9",
+      "kavlan-7": "2001:660:4406:593:1:0::9",
+      "kavlan-8": "2001:660:4406:594:1:0::9",
+      "kavlan-9": "2001:660:4406:595:1:0::9"
     }
   },
   "main_memory": {
@@ -145,7 +145,7 @@
       "firmware_version": "7.10 0x800075df 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.64.9",
-      "ip6": "2001:660:4406:500:1::9",
+      "ip6": "2001:660:4406:500:1:0::9",
       "kavlan": true,
       "mac": "f8:f2:1e:60:21:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-1.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-1.json
index f899dd6634e..824f0044665 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-1.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::1",
-      "kavlan-11": "2001:660:4406:1a0:507::1",
-      "kavlan-12": "2001:660:4406:2a0:507::1",
-      "kavlan-13": "2001:660:4406:4a0:507::1",
-      "kavlan-14": "2001:660:4406:5a0:507::1",
-      "kavlan-16": "2001:660:4406:7a0:507::1",
-      "kavlan-18": "2001:660:4406:8a0:507::1",
-      "kavlan-2": "2001:660:4406:581:7::1",
-      "kavlan-20": "2001:660:4406:3a0:507::1",
-      "kavlan-21": "2001:660:4406:6a0:507::1",
-      "kavlan-3": "2001:660:4406:582:7::1",
-      "kavlan-4": "2001:660:4406:590:7::1",
-      "kavlan-5": "2001:660:4406:591:7::1",
-      "kavlan-6": "2001:660:4406:592:7::1",
-      "kavlan-7": "2001:660:4406:593:7::1",
-      "kavlan-8": "2001:660:4406:594:7::1",
-      "kavlan-9": "2001:660:4406:595:7::1"
+      "kavlan-1": "2001:660:4406:580:7:0::1",
+      "kavlan-11": "2001:660:4406:1a0:507:0::1",
+      "kavlan-12": "2001:660:4406:2a0:507:0::1",
+      "kavlan-13": "2001:660:4406:4a0:507:0::1",
+      "kavlan-14": "2001:660:4406:5a0:507:0::1",
+      "kavlan-16": "2001:660:4406:7a0:507:0::1",
+      "kavlan-18": "2001:660:4406:8a0:507:0::1",
+      "kavlan-2": "2001:660:4406:581:7:0::1",
+      "kavlan-20": "2001:660:4406:3a0:507:0::1",
+      "kavlan-21": "2001:660:4406:6a0:507:0::1",
+      "kavlan-3": "2001:660:4406:582:7:0::1",
+      "kavlan-4": "2001:660:4406:590:7:0::1",
+      "kavlan-5": "2001:660:4406:591:7:0::1",
+      "kavlan-6": "2001:660:4406:592:7:0::1",
+      "kavlan-7": "2001:660:4406:593:7:0::1",
+      "kavlan-8": "2001:660:4406:594:7:0::1",
+      "kavlan-9": "2001:660:4406:595:7:0::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.1",
-      "ip6": "2001:660:4406:500:7::1",
+      "ip6": "2001:660:4406:500:7:0::1",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-10.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-10.json
index e661ead3573..2053137073d 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-10.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::a",
-      "kavlan-11": "2001:660:4406:1a0:507::a",
-      "kavlan-12": "2001:660:4406:2a0:507::a",
-      "kavlan-13": "2001:660:4406:4a0:507::a",
-      "kavlan-14": "2001:660:4406:5a0:507::a",
-      "kavlan-16": "2001:660:4406:7a0:507::a",
-      "kavlan-18": "2001:660:4406:8a0:507::a",
-      "kavlan-2": "2001:660:4406:581:7::a",
-      "kavlan-20": "2001:660:4406:3a0:507::a",
-      "kavlan-21": "2001:660:4406:6a0:507::a",
-      "kavlan-3": "2001:660:4406:582:7::a",
-      "kavlan-4": "2001:660:4406:590:7::a",
-      "kavlan-5": "2001:660:4406:591:7::a",
-      "kavlan-6": "2001:660:4406:592:7::a",
-      "kavlan-7": "2001:660:4406:593:7::a",
-      "kavlan-8": "2001:660:4406:594:7::a",
-      "kavlan-9": "2001:660:4406:595:7::a"
+      "kavlan-1": "2001:660:4406:580:7:0::a",
+      "kavlan-11": "2001:660:4406:1a0:507:0::a",
+      "kavlan-12": "2001:660:4406:2a0:507:0::a",
+      "kavlan-13": "2001:660:4406:4a0:507:0::a",
+      "kavlan-14": "2001:660:4406:5a0:507:0::a",
+      "kavlan-16": "2001:660:4406:7a0:507:0::a",
+      "kavlan-18": "2001:660:4406:8a0:507:0::a",
+      "kavlan-2": "2001:660:4406:581:7:0::a",
+      "kavlan-20": "2001:660:4406:3a0:507:0::a",
+      "kavlan-21": "2001:660:4406:6a0:507:0::a",
+      "kavlan-3": "2001:660:4406:582:7:0::a",
+      "kavlan-4": "2001:660:4406:590:7:0::a",
+      "kavlan-5": "2001:660:4406:591:7:0::a",
+      "kavlan-6": "2001:660:4406:592:7:0::a",
+      "kavlan-7": "2001:660:4406:593:7:0::a",
+      "kavlan-8": "2001:660:4406:594:7:0::a",
+      "kavlan-9": "2001:660:4406:595:7:0::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.10",
-      "ip6": "2001:660:4406:500:7::a",
+      "ip6": "2001:660:4406:500:7:0::a",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-11.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-11.json
index 8c1c5425d08..3682d6ee654 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-11.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::b",
-      "kavlan-11": "2001:660:4406:1a0:507::b",
-      "kavlan-12": "2001:660:4406:2a0:507::b",
-      "kavlan-13": "2001:660:4406:4a0:507::b",
-      "kavlan-14": "2001:660:4406:5a0:507::b",
-      "kavlan-16": "2001:660:4406:7a0:507::b",
-      "kavlan-18": "2001:660:4406:8a0:507::b",
-      "kavlan-2": "2001:660:4406:581:7::b",
-      "kavlan-20": "2001:660:4406:3a0:507::b",
-      "kavlan-21": "2001:660:4406:6a0:507::b",
-      "kavlan-3": "2001:660:4406:582:7::b",
-      "kavlan-4": "2001:660:4406:590:7::b",
-      "kavlan-5": "2001:660:4406:591:7::b",
-      "kavlan-6": "2001:660:4406:592:7::b",
-      "kavlan-7": "2001:660:4406:593:7::b",
-      "kavlan-8": "2001:660:4406:594:7::b",
-      "kavlan-9": "2001:660:4406:595:7::b"
+      "kavlan-1": "2001:660:4406:580:7:0::b",
+      "kavlan-11": "2001:660:4406:1a0:507:0::b",
+      "kavlan-12": "2001:660:4406:2a0:507:0::b",
+      "kavlan-13": "2001:660:4406:4a0:507:0::b",
+      "kavlan-14": "2001:660:4406:5a0:507:0::b",
+      "kavlan-16": "2001:660:4406:7a0:507:0::b",
+      "kavlan-18": "2001:660:4406:8a0:507:0::b",
+      "kavlan-2": "2001:660:4406:581:7:0::b",
+      "kavlan-20": "2001:660:4406:3a0:507:0::b",
+      "kavlan-21": "2001:660:4406:6a0:507:0::b",
+      "kavlan-3": "2001:660:4406:582:7:0::b",
+      "kavlan-4": "2001:660:4406:590:7:0::b",
+      "kavlan-5": "2001:660:4406:591:7:0::b",
+      "kavlan-6": "2001:660:4406:592:7:0::b",
+      "kavlan-7": "2001:660:4406:593:7:0::b",
+      "kavlan-8": "2001:660:4406:594:7:0::b",
+      "kavlan-9": "2001:660:4406:595:7:0::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.11",
-      "ip6": "2001:660:4406:500:7::b",
+      "ip6": "2001:660:4406:500:7:0::b",
       "kavlan": true,
       "mac": "24:6e:96:03:1f:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-12.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-12.json
index 8b29225d78e..37fe573edd5 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-12.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::c",
-      "kavlan-11": "2001:660:4406:1a0:507::c",
-      "kavlan-12": "2001:660:4406:2a0:507::c",
-      "kavlan-13": "2001:660:4406:4a0:507::c",
-      "kavlan-14": "2001:660:4406:5a0:507::c",
-      "kavlan-16": "2001:660:4406:7a0:507::c",
-      "kavlan-18": "2001:660:4406:8a0:507::c",
-      "kavlan-2": "2001:660:4406:581:7::c",
-      "kavlan-20": "2001:660:4406:3a0:507::c",
-      "kavlan-21": "2001:660:4406:6a0:507::c",
-      "kavlan-3": "2001:660:4406:582:7::c",
-      "kavlan-4": "2001:660:4406:590:7::c",
-      "kavlan-5": "2001:660:4406:591:7::c",
-      "kavlan-6": "2001:660:4406:592:7::c",
-      "kavlan-7": "2001:660:4406:593:7::c",
-      "kavlan-8": "2001:660:4406:594:7::c",
-      "kavlan-9": "2001:660:4406:595:7::c"
+      "kavlan-1": "2001:660:4406:580:7:0::c",
+      "kavlan-11": "2001:660:4406:1a0:507:0::c",
+      "kavlan-12": "2001:660:4406:2a0:507:0::c",
+      "kavlan-13": "2001:660:4406:4a0:507:0::c",
+      "kavlan-14": "2001:660:4406:5a0:507:0::c",
+      "kavlan-16": "2001:660:4406:7a0:507:0::c",
+      "kavlan-18": "2001:660:4406:8a0:507:0::c",
+      "kavlan-2": "2001:660:4406:581:7:0::c",
+      "kavlan-20": "2001:660:4406:3a0:507:0::c",
+      "kavlan-21": "2001:660:4406:6a0:507:0::c",
+      "kavlan-3": "2001:660:4406:582:7:0::c",
+      "kavlan-4": "2001:660:4406:590:7:0::c",
+      "kavlan-5": "2001:660:4406:591:7:0::c",
+      "kavlan-6": "2001:660:4406:592:7:0::c",
+      "kavlan-7": "2001:660:4406:593:7:0::c",
+      "kavlan-8": "2001:660:4406:594:7:0::c",
+      "kavlan-9": "2001:660:4406:595:7:0::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.12",
-      "ip6": "2001:660:4406:500:7::c",
+      "ip6": "2001:660:4406:500:7:0::c",
       "kavlan": true,
       "mac": "24:6e:96:03:09:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-13.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-13.json
index 872192bb88a..d5901bbb4ab 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-13.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::d",
-      "kavlan-11": "2001:660:4406:1a0:507::d",
-      "kavlan-12": "2001:660:4406:2a0:507::d",
-      "kavlan-13": "2001:660:4406:4a0:507::d",
-      "kavlan-14": "2001:660:4406:5a0:507::d",
-      "kavlan-16": "2001:660:4406:7a0:507::d",
-      "kavlan-18": "2001:660:4406:8a0:507::d",
-      "kavlan-2": "2001:660:4406:581:7::d",
-      "kavlan-20": "2001:660:4406:3a0:507::d",
-      "kavlan-21": "2001:660:4406:6a0:507::d",
-      "kavlan-3": "2001:660:4406:582:7::d",
-      "kavlan-4": "2001:660:4406:590:7::d",
-      "kavlan-5": "2001:660:4406:591:7::d",
-      "kavlan-6": "2001:660:4406:592:7::d",
-      "kavlan-7": "2001:660:4406:593:7::d",
-      "kavlan-8": "2001:660:4406:594:7::d",
-      "kavlan-9": "2001:660:4406:595:7::d"
+      "kavlan-1": "2001:660:4406:580:7:0::d",
+      "kavlan-11": "2001:660:4406:1a0:507:0::d",
+      "kavlan-12": "2001:660:4406:2a0:507:0::d",
+      "kavlan-13": "2001:660:4406:4a0:507:0::d",
+      "kavlan-14": "2001:660:4406:5a0:507:0::d",
+      "kavlan-16": "2001:660:4406:7a0:507:0::d",
+      "kavlan-18": "2001:660:4406:8a0:507:0::d",
+      "kavlan-2": "2001:660:4406:581:7:0::d",
+      "kavlan-20": "2001:660:4406:3a0:507:0::d",
+      "kavlan-21": "2001:660:4406:6a0:507:0::d",
+      "kavlan-3": "2001:660:4406:582:7:0::d",
+      "kavlan-4": "2001:660:4406:590:7:0::d",
+      "kavlan-5": "2001:660:4406:591:7:0::d",
+      "kavlan-6": "2001:660:4406:592:7:0::d",
+      "kavlan-7": "2001:660:4406:593:7:0::d",
+      "kavlan-8": "2001:660:4406:594:7:0::d",
+      "kavlan-9": "2001:660:4406:595:7:0::d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.13",
-      "ip6": "2001:660:4406:500:7::d",
+      "ip6": "2001:660:4406:500:7:0::d",
       "kavlan": true,
       "mac": "24:6e:96:03:24:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-14.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-14.json
index 37e8dc4408a..f8d7b77ad0c 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-14.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::e",
-      "kavlan-11": "2001:660:4406:1a0:507::e",
-      "kavlan-12": "2001:660:4406:2a0:507::e",
-      "kavlan-13": "2001:660:4406:4a0:507::e",
-      "kavlan-14": "2001:660:4406:5a0:507::e",
-      "kavlan-16": "2001:660:4406:7a0:507::e",
-      "kavlan-18": "2001:660:4406:8a0:507::e",
-      "kavlan-2": "2001:660:4406:581:7::e",
-      "kavlan-20": "2001:660:4406:3a0:507::e",
-      "kavlan-21": "2001:660:4406:6a0:507::e",
-      "kavlan-3": "2001:660:4406:582:7::e",
-      "kavlan-4": "2001:660:4406:590:7::e",
-      "kavlan-5": "2001:660:4406:591:7::e",
-      "kavlan-6": "2001:660:4406:592:7::e",
-      "kavlan-7": "2001:660:4406:593:7::e",
-      "kavlan-8": "2001:660:4406:594:7::e",
-      "kavlan-9": "2001:660:4406:595:7::e"
+      "kavlan-1": "2001:660:4406:580:7:0::e",
+      "kavlan-11": "2001:660:4406:1a0:507:0::e",
+      "kavlan-12": "2001:660:4406:2a0:507:0::e",
+      "kavlan-13": "2001:660:4406:4a0:507:0::e",
+      "kavlan-14": "2001:660:4406:5a0:507:0::e",
+      "kavlan-16": "2001:660:4406:7a0:507:0::e",
+      "kavlan-18": "2001:660:4406:8a0:507:0::e",
+      "kavlan-2": "2001:660:4406:581:7:0::e",
+      "kavlan-20": "2001:660:4406:3a0:507:0::e",
+      "kavlan-21": "2001:660:4406:6a0:507:0::e",
+      "kavlan-3": "2001:660:4406:582:7:0::e",
+      "kavlan-4": "2001:660:4406:590:7:0::e",
+      "kavlan-5": "2001:660:4406:591:7:0::e",
+      "kavlan-6": "2001:660:4406:592:7:0::e",
+      "kavlan-7": "2001:660:4406:593:7:0::e",
+      "kavlan-8": "2001:660:4406:594:7:0::e",
+      "kavlan-9": "2001:660:4406:595:7:0::e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.14",
-      "ip6": "2001:660:4406:500:7::e",
+      "ip6": "2001:660:4406:500:7:0::e",
       "kavlan": true,
       "mac": "24:6e:96:03:12:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-15.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-15.json
index 798b2298421..a973b1d44a1 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-15.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::f",
-      "kavlan-11": "2001:660:4406:1a0:507::f",
-      "kavlan-12": "2001:660:4406:2a0:507::f",
-      "kavlan-13": "2001:660:4406:4a0:507::f",
-      "kavlan-14": "2001:660:4406:5a0:507::f",
-      "kavlan-16": "2001:660:4406:7a0:507::f",
-      "kavlan-18": "2001:660:4406:8a0:507::f",
-      "kavlan-2": "2001:660:4406:581:7::f",
-      "kavlan-20": "2001:660:4406:3a0:507::f",
-      "kavlan-21": "2001:660:4406:6a0:507::f",
-      "kavlan-3": "2001:660:4406:582:7::f",
-      "kavlan-4": "2001:660:4406:590:7::f",
-      "kavlan-5": "2001:660:4406:591:7::f",
-      "kavlan-6": "2001:660:4406:592:7::f",
-      "kavlan-7": "2001:660:4406:593:7::f",
-      "kavlan-8": "2001:660:4406:594:7::f",
-      "kavlan-9": "2001:660:4406:595:7::f"
+      "kavlan-1": "2001:660:4406:580:7:0::f",
+      "kavlan-11": "2001:660:4406:1a0:507:0::f",
+      "kavlan-12": "2001:660:4406:2a0:507:0::f",
+      "kavlan-13": "2001:660:4406:4a0:507:0::f",
+      "kavlan-14": "2001:660:4406:5a0:507:0::f",
+      "kavlan-16": "2001:660:4406:7a0:507:0::f",
+      "kavlan-18": "2001:660:4406:8a0:507:0::f",
+      "kavlan-2": "2001:660:4406:581:7:0::f",
+      "kavlan-20": "2001:660:4406:3a0:507:0::f",
+      "kavlan-21": "2001:660:4406:6a0:507:0::f",
+      "kavlan-3": "2001:660:4406:582:7:0::f",
+      "kavlan-4": "2001:660:4406:590:7:0::f",
+      "kavlan-5": "2001:660:4406:591:7:0::f",
+      "kavlan-6": "2001:660:4406:592:7:0::f",
+      "kavlan-7": "2001:660:4406:593:7:0::f",
+      "kavlan-8": "2001:660:4406:594:7:0::f",
+      "kavlan-9": "2001:660:4406:595:7:0::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.15",
-      "ip6": "2001:660:4406:500:7::f",
+      "ip6": "2001:660:4406:500:7:0::f",
       "kavlan": true,
       "mac": "24:6e:96:03:09:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-16.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-16.json
index 78cd432a108..debf933bb6b 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-16.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::10",
-      "kavlan-11": "2001:660:4406:1a0:507::10",
-      "kavlan-12": "2001:660:4406:2a0:507::10",
-      "kavlan-13": "2001:660:4406:4a0:507::10",
-      "kavlan-14": "2001:660:4406:5a0:507::10",
-      "kavlan-16": "2001:660:4406:7a0:507::10",
-      "kavlan-18": "2001:660:4406:8a0:507::10",
-      "kavlan-2": "2001:660:4406:581:7::10",
-      "kavlan-20": "2001:660:4406:3a0:507::10",
-      "kavlan-21": "2001:660:4406:6a0:507::10",
-      "kavlan-3": "2001:660:4406:582:7::10",
-      "kavlan-4": "2001:660:4406:590:7::10",
-      "kavlan-5": "2001:660:4406:591:7::10",
-      "kavlan-6": "2001:660:4406:592:7::10",
-      "kavlan-7": "2001:660:4406:593:7::10",
-      "kavlan-8": "2001:660:4406:594:7::10",
-      "kavlan-9": "2001:660:4406:595:7::10"
+      "kavlan-1": "2001:660:4406:580:7:0::10",
+      "kavlan-11": "2001:660:4406:1a0:507:0::10",
+      "kavlan-12": "2001:660:4406:2a0:507:0::10",
+      "kavlan-13": "2001:660:4406:4a0:507:0::10",
+      "kavlan-14": "2001:660:4406:5a0:507:0::10",
+      "kavlan-16": "2001:660:4406:7a0:507:0::10",
+      "kavlan-18": "2001:660:4406:8a0:507:0::10",
+      "kavlan-2": "2001:660:4406:581:7:0::10",
+      "kavlan-20": "2001:660:4406:3a0:507:0::10",
+      "kavlan-21": "2001:660:4406:6a0:507:0::10",
+      "kavlan-3": "2001:660:4406:582:7:0::10",
+      "kavlan-4": "2001:660:4406:590:7:0::10",
+      "kavlan-5": "2001:660:4406:591:7:0::10",
+      "kavlan-6": "2001:660:4406:592:7:0::10",
+      "kavlan-7": "2001:660:4406:593:7:0::10",
+      "kavlan-8": "2001:660:4406:594:7:0::10",
+      "kavlan-9": "2001:660:4406:595:7:0::10"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.16",
-      "ip6": "2001:660:4406:500:7::10",
+      "ip6": "2001:660:4406:500:7:0::10",
       "kavlan": true,
       "mac": "24:6e:96:03:0f:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-2.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-2.json
index 9d4839943bc..c2b53137226 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-2.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::2",
-      "kavlan-11": "2001:660:4406:1a0:507::2",
-      "kavlan-12": "2001:660:4406:2a0:507::2",
-      "kavlan-13": "2001:660:4406:4a0:507::2",
-      "kavlan-14": "2001:660:4406:5a0:507::2",
-      "kavlan-16": "2001:660:4406:7a0:507::2",
-      "kavlan-18": "2001:660:4406:8a0:507::2",
-      "kavlan-2": "2001:660:4406:581:7::2",
-      "kavlan-20": "2001:660:4406:3a0:507::2",
-      "kavlan-21": "2001:660:4406:6a0:507::2",
-      "kavlan-3": "2001:660:4406:582:7::2",
-      "kavlan-4": "2001:660:4406:590:7::2",
-      "kavlan-5": "2001:660:4406:591:7::2",
-      "kavlan-6": "2001:660:4406:592:7::2",
-      "kavlan-7": "2001:660:4406:593:7::2",
-      "kavlan-8": "2001:660:4406:594:7::2",
-      "kavlan-9": "2001:660:4406:595:7::2"
+      "kavlan-1": "2001:660:4406:580:7:0::2",
+      "kavlan-11": "2001:660:4406:1a0:507:0::2",
+      "kavlan-12": "2001:660:4406:2a0:507:0::2",
+      "kavlan-13": "2001:660:4406:4a0:507:0::2",
+      "kavlan-14": "2001:660:4406:5a0:507:0::2",
+      "kavlan-16": "2001:660:4406:7a0:507:0::2",
+      "kavlan-18": "2001:660:4406:8a0:507:0::2",
+      "kavlan-2": "2001:660:4406:581:7:0::2",
+      "kavlan-20": "2001:660:4406:3a0:507:0::2",
+      "kavlan-21": "2001:660:4406:6a0:507:0::2",
+      "kavlan-3": "2001:660:4406:582:7:0::2",
+      "kavlan-4": "2001:660:4406:590:7:0::2",
+      "kavlan-5": "2001:660:4406:591:7:0::2",
+      "kavlan-6": "2001:660:4406:592:7:0::2",
+      "kavlan-7": "2001:660:4406:593:7:0::2",
+      "kavlan-8": "2001:660:4406:594:7:0::2",
+      "kavlan-9": "2001:660:4406:595:7:0::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.2",
-      "ip6": "2001:660:4406:500:7::2",
+      "ip6": "2001:660:4406:500:7:0::2",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:28",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-3.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-3.json
index 1c3252fd1c6..40c573e2e1d 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-3.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::3",
-      "kavlan-11": "2001:660:4406:1a0:507::3",
-      "kavlan-12": "2001:660:4406:2a0:507::3",
-      "kavlan-13": "2001:660:4406:4a0:507::3",
-      "kavlan-14": "2001:660:4406:5a0:507::3",
-      "kavlan-16": "2001:660:4406:7a0:507::3",
-      "kavlan-18": "2001:660:4406:8a0:507::3",
-      "kavlan-2": "2001:660:4406:581:7::3",
-      "kavlan-20": "2001:660:4406:3a0:507::3",
-      "kavlan-21": "2001:660:4406:6a0:507::3",
-      "kavlan-3": "2001:660:4406:582:7::3",
-      "kavlan-4": "2001:660:4406:590:7::3",
-      "kavlan-5": "2001:660:4406:591:7::3",
-      "kavlan-6": "2001:660:4406:592:7::3",
-      "kavlan-7": "2001:660:4406:593:7::3",
-      "kavlan-8": "2001:660:4406:594:7::3",
-      "kavlan-9": "2001:660:4406:595:7::3"
+      "kavlan-1": "2001:660:4406:580:7:0::3",
+      "kavlan-11": "2001:660:4406:1a0:507:0::3",
+      "kavlan-12": "2001:660:4406:2a0:507:0::3",
+      "kavlan-13": "2001:660:4406:4a0:507:0::3",
+      "kavlan-14": "2001:660:4406:5a0:507:0::3",
+      "kavlan-16": "2001:660:4406:7a0:507:0::3",
+      "kavlan-18": "2001:660:4406:8a0:507:0::3",
+      "kavlan-2": "2001:660:4406:581:7:0::3",
+      "kavlan-20": "2001:660:4406:3a0:507:0::3",
+      "kavlan-21": "2001:660:4406:6a0:507:0::3",
+      "kavlan-3": "2001:660:4406:582:7:0::3",
+      "kavlan-4": "2001:660:4406:590:7:0::3",
+      "kavlan-5": "2001:660:4406:591:7:0::3",
+      "kavlan-6": "2001:660:4406:592:7:0::3",
+      "kavlan-7": "2001:660:4406:593:7:0::3",
+      "kavlan-8": "2001:660:4406:594:7:0::3",
+      "kavlan-9": "2001:660:4406:595:7:0::3"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.3",
-      "ip6": "2001:660:4406:500:7::3",
+      "ip6": "2001:660:4406:500:7:0::3",
       "kavlan": true,
       "mac": "24:6e:96:03:11:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-4.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-4.json
index b3d5ede44cb..a36423a895c 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-4.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::4",
-      "kavlan-11": "2001:660:4406:1a0:507::4",
-      "kavlan-12": "2001:660:4406:2a0:507::4",
-      "kavlan-13": "2001:660:4406:4a0:507::4",
-      "kavlan-14": "2001:660:4406:5a0:507::4",
-      "kavlan-16": "2001:660:4406:7a0:507::4",
-      "kavlan-18": "2001:660:4406:8a0:507::4",
-      "kavlan-2": "2001:660:4406:581:7::4",
-      "kavlan-20": "2001:660:4406:3a0:507::4",
-      "kavlan-21": "2001:660:4406:6a0:507::4",
-      "kavlan-3": "2001:660:4406:582:7::4",
-      "kavlan-4": "2001:660:4406:590:7::4",
-      "kavlan-5": "2001:660:4406:591:7::4",
-      "kavlan-6": "2001:660:4406:592:7::4",
-      "kavlan-7": "2001:660:4406:593:7::4",
-      "kavlan-8": "2001:660:4406:594:7::4",
-      "kavlan-9": "2001:660:4406:595:7::4"
+      "kavlan-1": "2001:660:4406:580:7:0::4",
+      "kavlan-11": "2001:660:4406:1a0:507:0::4",
+      "kavlan-12": "2001:660:4406:2a0:507:0::4",
+      "kavlan-13": "2001:660:4406:4a0:507:0::4",
+      "kavlan-14": "2001:660:4406:5a0:507:0::4",
+      "kavlan-16": "2001:660:4406:7a0:507:0::4",
+      "kavlan-18": "2001:660:4406:8a0:507:0::4",
+      "kavlan-2": "2001:660:4406:581:7:0::4",
+      "kavlan-20": "2001:660:4406:3a0:507:0::4",
+      "kavlan-21": "2001:660:4406:6a0:507:0::4",
+      "kavlan-3": "2001:660:4406:582:7:0::4",
+      "kavlan-4": "2001:660:4406:590:7:0::4",
+      "kavlan-5": "2001:660:4406:591:7:0::4",
+      "kavlan-6": "2001:660:4406:592:7:0::4",
+      "kavlan-7": "2001:660:4406:593:7:0::4",
+      "kavlan-8": "2001:660:4406:594:7:0::4",
+      "kavlan-9": "2001:660:4406:595:7:0::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.4",
-      "ip6": "2001:660:4406:500:7::4",
+      "ip6": "2001:660:4406:500:7:0::4",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-5.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-5.json
index 74384314efe..cf80195bb18 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-5.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::5",
-      "kavlan-11": "2001:660:4406:1a0:507::5",
-      "kavlan-12": "2001:660:4406:2a0:507::5",
-      "kavlan-13": "2001:660:4406:4a0:507::5",
-      "kavlan-14": "2001:660:4406:5a0:507::5",
-      "kavlan-16": "2001:660:4406:7a0:507::5",
-      "kavlan-18": "2001:660:4406:8a0:507::5",
-      "kavlan-2": "2001:660:4406:581:7::5",
-      "kavlan-20": "2001:660:4406:3a0:507::5",
-      "kavlan-21": "2001:660:4406:6a0:507::5",
-      "kavlan-3": "2001:660:4406:582:7::5",
-      "kavlan-4": "2001:660:4406:590:7::5",
-      "kavlan-5": "2001:660:4406:591:7::5",
-      "kavlan-6": "2001:660:4406:592:7::5",
-      "kavlan-7": "2001:660:4406:593:7::5",
-      "kavlan-8": "2001:660:4406:594:7::5",
-      "kavlan-9": "2001:660:4406:595:7::5"
+      "kavlan-1": "2001:660:4406:580:7:0::5",
+      "kavlan-11": "2001:660:4406:1a0:507:0::5",
+      "kavlan-12": "2001:660:4406:2a0:507:0::5",
+      "kavlan-13": "2001:660:4406:4a0:507:0::5",
+      "kavlan-14": "2001:660:4406:5a0:507:0::5",
+      "kavlan-16": "2001:660:4406:7a0:507:0::5",
+      "kavlan-18": "2001:660:4406:8a0:507:0::5",
+      "kavlan-2": "2001:660:4406:581:7:0::5",
+      "kavlan-20": "2001:660:4406:3a0:507:0::5",
+      "kavlan-21": "2001:660:4406:6a0:507:0::5",
+      "kavlan-3": "2001:660:4406:582:7:0::5",
+      "kavlan-4": "2001:660:4406:590:7:0::5",
+      "kavlan-5": "2001:660:4406:591:7:0::5",
+      "kavlan-6": "2001:660:4406:592:7:0::5",
+      "kavlan-7": "2001:660:4406:593:7:0::5",
+      "kavlan-8": "2001:660:4406:594:7:0::5",
+      "kavlan-9": "2001:660:4406:595:7:0::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.5",
-      "ip6": "2001:660:4406:500:7::5",
+      "ip6": "2001:660:4406:500:7:0::5",
       "kavlan": true,
       "mac": "24:6e:96:03:1f:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-6.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-6.json
index 8ace4f2a21d..b873a317135 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-6.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::6",
-      "kavlan-11": "2001:660:4406:1a0:507::6",
-      "kavlan-12": "2001:660:4406:2a0:507::6",
-      "kavlan-13": "2001:660:4406:4a0:507::6",
-      "kavlan-14": "2001:660:4406:5a0:507::6",
-      "kavlan-16": "2001:660:4406:7a0:507::6",
-      "kavlan-18": "2001:660:4406:8a0:507::6",
-      "kavlan-2": "2001:660:4406:581:7::6",
-      "kavlan-20": "2001:660:4406:3a0:507::6",
-      "kavlan-21": "2001:660:4406:6a0:507::6",
-      "kavlan-3": "2001:660:4406:582:7::6",
-      "kavlan-4": "2001:660:4406:590:7::6",
-      "kavlan-5": "2001:660:4406:591:7::6",
-      "kavlan-6": "2001:660:4406:592:7::6",
-      "kavlan-7": "2001:660:4406:593:7::6",
-      "kavlan-8": "2001:660:4406:594:7::6",
-      "kavlan-9": "2001:660:4406:595:7::6"
+      "kavlan-1": "2001:660:4406:580:7:0::6",
+      "kavlan-11": "2001:660:4406:1a0:507:0::6",
+      "kavlan-12": "2001:660:4406:2a0:507:0::6",
+      "kavlan-13": "2001:660:4406:4a0:507:0::6",
+      "kavlan-14": "2001:660:4406:5a0:507:0::6",
+      "kavlan-16": "2001:660:4406:7a0:507:0::6",
+      "kavlan-18": "2001:660:4406:8a0:507:0::6",
+      "kavlan-2": "2001:660:4406:581:7:0::6",
+      "kavlan-20": "2001:660:4406:3a0:507:0::6",
+      "kavlan-21": "2001:660:4406:6a0:507:0::6",
+      "kavlan-3": "2001:660:4406:582:7:0::6",
+      "kavlan-4": "2001:660:4406:590:7:0::6",
+      "kavlan-5": "2001:660:4406:591:7:0::6",
+      "kavlan-6": "2001:660:4406:592:7:0::6",
+      "kavlan-7": "2001:660:4406:593:7:0::6",
+      "kavlan-8": "2001:660:4406:594:7:0::6",
+      "kavlan-9": "2001:660:4406:595:7:0::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.6",
-      "ip6": "2001:660:4406:500:7::6",
+      "ip6": "2001:660:4406:500:7:0::6",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-7.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-7.json
index 011c22c1b38..b7a186d9d3f 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-7.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::7",
-      "kavlan-11": "2001:660:4406:1a0:507::7",
-      "kavlan-12": "2001:660:4406:2a0:507::7",
-      "kavlan-13": "2001:660:4406:4a0:507::7",
-      "kavlan-14": "2001:660:4406:5a0:507::7",
-      "kavlan-16": "2001:660:4406:7a0:507::7",
-      "kavlan-18": "2001:660:4406:8a0:507::7",
-      "kavlan-2": "2001:660:4406:581:7::7",
-      "kavlan-20": "2001:660:4406:3a0:507::7",
-      "kavlan-21": "2001:660:4406:6a0:507::7",
-      "kavlan-3": "2001:660:4406:582:7::7",
-      "kavlan-4": "2001:660:4406:590:7::7",
-      "kavlan-5": "2001:660:4406:591:7::7",
-      "kavlan-6": "2001:660:4406:592:7::7",
-      "kavlan-7": "2001:660:4406:593:7::7",
-      "kavlan-8": "2001:660:4406:594:7::7",
-      "kavlan-9": "2001:660:4406:595:7::7"
+      "kavlan-1": "2001:660:4406:580:7:0::7",
+      "kavlan-11": "2001:660:4406:1a0:507:0::7",
+      "kavlan-12": "2001:660:4406:2a0:507:0::7",
+      "kavlan-13": "2001:660:4406:4a0:507:0::7",
+      "kavlan-14": "2001:660:4406:5a0:507:0::7",
+      "kavlan-16": "2001:660:4406:7a0:507:0::7",
+      "kavlan-18": "2001:660:4406:8a0:507:0::7",
+      "kavlan-2": "2001:660:4406:581:7:0::7",
+      "kavlan-20": "2001:660:4406:3a0:507:0::7",
+      "kavlan-21": "2001:660:4406:6a0:507:0::7",
+      "kavlan-3": "2001:660:4406:582:7:0::7",
+      "kavlan-4": "2001:660:4406:590:7:0::7",
+      "kavlan-5": "2001:660:4406:591:7:0::7",
+      "kavlan-6": "2001:660:4406:592:7:0::7",
+      "kavlan-7": "2001:660:4406:593:7:0::7",
+      "kavlan-8": "2001:660:4406:594:7:0::7",
+      "kavlan-9": "2001:660:4406:595:7:0::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.7",
-      "ip6": "2001:660:4406:500:7::7",
+      "ip6": "2001:660:4406:500:7:0::7",
       "kavlan": true,
       "mac": "24:6e:96:03:1e:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-8.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-8.json
index e66d3e2973f..c874b8510b1 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-8.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::8",
-      "kavlan-11": "2001:660:4406:1a0:507::8",
-      "kavlan-12": "2001:660:4406:2a0:507::8",
-      "kavlan-13": "2001:660:4406:4a0:507::8",
-      "kavlan-14": "2001:660:4406:5a0:507::8",
-      "kavlan-16": "2001:660:4406:7a0:507::8",
-      "kavlan-18": "2001:660:4406:8a0:507::8",
-      "kavlan-2": "2001:660:4406:581:7::8",
-      "kavlan-20": "2001:660:4406:3a0:507::8",
-      "kavlan-21": "2001:660:4406:6a0:507::8",
-      "kavlan-3": "2001:660:4406:582:7::8",
-      "kavlan-4": "2001:660:4406:590:7::8",
-      "kavlan-5": "2001:660:4406:591:7::8",
-      "kavlan-6": "2001:660:4406:592:7::8",
-      "kavlan-7": "2001:660:4406:593:7::8",
-      "kavlan-8": "2001:660:4406:594:7::8",
-      "kavlan-9": "2001:660:4406:595:7::8"
+      "kavlan-1": "2001:660:4406:580:7:0::8",
+      "kavlan-11": "2001:660:4406:1a0:507:0::8",
+      "kavlan-12": "2001:660:4406:2a0:507:0::8",
+      "kavlan-13": "2001:660:4406:4a0:507:0::8",
+      "kavlan-14": "2001:660:4406:5a0:507:0::8",
+      "kavlan-16": "2001:660:4406:7a0:507:0::8",
+      "kavlan-18": "2001:660:4406:8a0:507:0::8",
+      "kavlan-2": "2001:660:4406:581:7:0::8",
+      "kavlan-20": "2001:660:4406:3a0:507:0::8",
+      "kavlan-21": "2001:660:4406:6a0:507:0::8",
+      "kavlan-3": "2001:660:4406:582:7:0::8",
+      "kavlan-4": "2001:660:4406:590:7:0::8",
+      "kavlan-5": "2001:660:4406:591:7:0::8",
+      "kavlan-6": "2001:660:4406:592:7:0::8",
+      "kavlan-7": "2001:660:4406:593:7:0::8",
+      "kavlan-8": "2001:660:4406:594:7:0::8",
+      "kavlan-9": "2001:660:4406:595:7:0::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.8",
-      "ip6": "2001:660:4406:500:7::8",
+      "ip6": "2001:660:4406:500:7:0::8",
       "kavlan": true,
       "mac": "24:6e:96:03:12:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-9.json b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-9.json
index 293bd3b0aed..8a1e6883b07 100644
--- a/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-9.json
+++ b/data/grid5000/sites/nancy/clusters/graoully/nodes/graoully-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:7::9",
-      "kavlan-11": "2001:660:4406:1a0:507::9",
-      "kavlan-12": "2001:660:4406:2a0:507::9",
-      "kavlan-13": "2001:660:4406:4a0:507::9",
-      "kavlan-14": "2001:660:4406:5a0:507::9",
-      "kavlan-16": "2001:660:4406:7a0:507::9",
-      "kavlan-18": "2001:660:4406:8a0:507::9",
-      "kavlan-2": "2001:660:4406:581:7::9",
-      "kavlan-20": "2001:660:4406:3a0:507::9",
-      "kavlan-21": "2001:660:4406:6a0:507::9",
-      "kavlan-3": "2001:660:4406:582:7::9",
-      "kavlan-4": "2001:660:4406:590:7::9",
-      "kavlan-5": "2001:660:4406:591:7::9",
-      "kavlan-6": "2001:660:4406:592:7::9",
-      "kavlan-7": "2001:660:4406:593:7::9",
-      "kavlan-8": "2001:660:4406:594:7::9",
-      "kavlan-9": "2001:660:4406:595:7::9"
+      "kavlan-1": "2001:660:4406:580:7:0::9",
+      "kavlan-11": "2001:660:4406:1a0:507:0::9",
+      "kavlan-12": "2001:660:4406:2a0:507:0::9",
+      "kavlan-13": "2001:660:4406:4a0:507:0::9",
+      "kavlan-14": "2001:660:4406:5a0:507:0::9",
+      "kavlan-16": "2001:660:4406:7a0:507:0::9",
+      "kavlan-18": "2001:660:4406:8a0:507:0::9",
+      "kavlan-2": "2001:660:4406:581:7:0::9",
+      "kavlan-20": "2001:660:4406:3a0:507:0::9",
+      "kavlan-21": "2001:660:4406:6a0:507:0::9",
+      "kavlan-3": "2001:660:4406:582:7:0::9",
+      "kavlan-4": "2001:660:4406:590:7:0::9",
+      "kavlan-5": "2001:660:4406:591:7:0::9",
+      "kavlan-6": "2001:660:4406:592:7:0::9",
+      "kavlan-7": "2001:660:4406:593:7:0::9",
+      "kavlan-8": "2001:660:4406:594:7:0::9",
+      "kavlan-9": "2001:660:4406:595:7:0::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.70.9",
-      "ip6": "2001:660:4406:500:7::9",
+      "ip6": "2001:660:4406:500:7:0::9",
       "kavlan": true,
       "mac": "24:6e:96:03:1e:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-1.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-1.json
index aecf31c1035..7855233869b 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-1.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-1.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4::1",
-      "kavlan-11": "2001:660:4406:1a0:504::1",
-      "kavlan-12": "2001:660:4406:2a0:504::1",
-      "kavlan-13": "2001:660:4406:4a0:504::1",
-      "kavlan-14": "2001:660:4406:5a0:504::1",
-      "kavlan-16": "2001:660:4406:7a0:504::1",
-      "kavlan-18": "2001:660:4406:8a0:504::1",
-      "kavlan-2": "2001:660:4406:581:4::1",
-      "kavlan-20": "2001:660:4406:3a0:504::1",
-      "kavlan-21": "2001:660:4406:6a0:504::1",
-      "kavlan-3": "2001:660:4406:582:4::1",
-      "kavlan-4": "2001:660:4406:590:4::1",
-      "kavlan-5": "2001:660:4406:591:4::1",
-      "kavlan-6": "2001:660:4406:592:4::1",
-      "kavlan-7": "2001:660:4406:593:4::1",
-      "kavlan-8": "2001:660:4406:594:4::1",
-      "kavlan-9": "2001:660:4406:595:4::1"
+      "kavlan-1": "2001:660:4406:580:4:0::1",
+      "kavlan-11": "2001:660:4406:1a0:504:0::1",
+      "kavlan-12": "2001:660:4406:2a0:504:0::1",
+      "kavlan-13": "2001:660:4406:4a0:504:0::1",
+      "kavlan-14": "2001:660:4406:5a0:504:0::1",
+      "kavlan-16": "2001:660:4406:7a0:504:0::1",
+      "kavlan-18": "2001:660:4406:8a0:504:0::1",
+      "kavlan-2": "2001:660:4406:581:4:0::1",
+      "kavlan-20": "2001:660:4406:3a0:504:0::1",
+      "kavlan-21": "2001:660:4406:6a0:504:0::1",
+      "kavlan-3": "2001:660:4406:582:4:0::1",
+      "kavlan-4": "2001:660:4406:590:4:0::1",
+      "kavlan-5": "2001:660:4406:591:4:0::1",
+      "kavlan-6": "2001:660:4406:592:4:0::1",
+      "kavlan-7": "2001:660:4406:593:4:0::1",
+      "kavlan-8": "2001:660:4406:594:4:0::1",
+      "kavlan-9": "2001:660:4406:595:4:0::1"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.1",
-      "ip6": "2001:660:4406:500:4::1",
+      "ip6": "2001:660:4406:500:4:0::1",
       "kavlan": true,
       "mac": "b0:83:fe:e5:c0:54",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-2.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-2.json
index 5daf099a2d1..6c493ba5202 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-2.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-2.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4::2",
-      "kavlan-11": "2001:660:4406:1a0:504::2",
-      "kavlan-12": "2001:660:4406:2a0:504::2",
-      "kavlan-13": "2001:660:4406:4a0:504::2",
-      "kavlan-14": "2001:660:4406:5a0:504::2",
-      "kavlan-16": "2001:660:4406:7a0:504::2",
-      "kavlan-18": "2001:660:4406:8a0:504::2",
-      "kavlan-2": "2001:660:4406:581:4::2",
-      "kavlan-20": "2001:660:4406:3a0:504::2",
-      "kavlan-21": "2001:660:4406:6a0:504::2",
-      "kavlan-3": "2001:660:4406:582:4::2",
-      "kavlan-4": "2001:660:4406:590:4::2",
-      "kavlan-5": "2001:660:4406:591:4::2",
-      "kavlan-6": "2001:660:4406:592:4::2",
-      "kavlan-7": "2001:660:4406:593:4::2",
-      "kavlan-8": "2001:660:4406:594:4::2",
-      "kavlan-9": "2001:660:4406:595:4::2"
+      "kavlan-1": "2001:660:4406:580:4:0::2",
+      "kavlan-11": "2001:660:4406:1a0:504:0::2",
+      "kavlan-12": "2001:660:4406:2a0:504:0::2",
+      "kavlan-13": "2001:660:4406:4a0:504:0::2",
+      "kavlan-14": "2001:660:4406:5a0:504:0::2",
+      "kavlan-16": "2001:660:4406:7a0:504:0::2",
+      "kavlan-18": "2001:660:4406:8a0:504:0::2",
+      "kavlan-2": "2001:660:4406:581:4:0::2",
+      "kavlan-20": "2001:660:4406:3a0:504:0::2",
+      "kavlan-21": "2001:660:4406:6a0:504:0::2",
+      "kavlan-3": "2001:660:4406:582:4:0::2",
+      "kavlan-4": "2001:660:4406:590:4:0::2",
+      "kavlan-5": "2001:660:4406:591:4:0::2",
+      "kavlan-6": "2001:660:4406:592:4:0::2",
+      "kavlan-7": "2001:660:4406:593:4:0::2",
+      "kavlan-8": "2001:660:4406:594:4:0::2",
+      "kavlan-9": "2001:660:4406:595:4:0::2"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.2",
-      "ip6": "2001:660:4406:500:4::2",
+      "ip6": "2001:660:4406:500:4:0::2",
       "kavlan": true,
       "mac": "d0:94:66:63:62:32",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-3.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-3.json
index 5ceb01dd63a..1b50f402c20 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-3.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-3.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4::3",
-      "kavlan-11": "2001:660:4406:1a0:504::3",
-      "kavlan-12": "2001:660:4406:2a0:504::3",
-      "kavlan-13": "2001:660:4406:4a0:504::3",
-      "kavlan-14": "2001:660:4406:5a0:504::3",
-      "kavlan-16": "2001:660:4406:7a0:504::3",
-      "kavlan-18": "2001:660:4406:8a0:504::3",
-      "kavlan-2": "2001:660:4406:581:4::3",
-      "kavlan-20": "2001:660:4406:3a0:504::3",
-      "kavlan-21": "2001:660:4406:6a0:504::3",
-      "kavlan-3": "2001:660:4406:582:4::3",
-      "kavlan-4": "2001:660:4406:590:4::3",
-      "kavlan-5": "2001:660:4406:591:4::3",
-      "kavlan-6": "2001:660:4406:592:4::3",
-      "kavlan-7": "2001:660:4406:593:4::3",
-      "kavlan-8": "2001:660:4406:594:4::3",
-      "kavlan-9": "2001:660:4406:595:4::3"
+      "kavlan-1": "2001:660:4406:580:4:0::3",
+      "kavlan-11": "2001:660:4406:1a0:504:0::3",
+      "kavlan-12": "2001:660:4406:2a0:504:0::3",
+      "kavlan-13": "2001:660:4406:4a0:504:0::3",
+      "kavlan-14": "2001:660:4406:5a0:504:0::3",
+      "kavlan-16": "2001:660:4406:7a0:504:0::3",
+      "kavlan-18": "2001:660:4406:8a0:504:0::3",
+      "kavlan-2": "2001:660:4406:581:4:0::3",
+      "kavlan-20": "2001:660:4406:3a0:504:0::3",
+      "kavlan-21": "2001:660:4406:6a0:504:0::3",
+      "kavlan-3": "2001:660:4406:582:4:0::3",
+      "kavlan-4": "2001:660:4406:590:4:0::3",
+      "kavlan-5": "2001:660:4406:591:4:0::3",
+      "kavlan-6": "2001:660:4406:592:4:0::3",
+      "kavlan-7": "2001:660:4406:593:4:0::3",
+      "kavlan-8": "2001:660:4406:594:4:0::3",
+      "kavlan-9": "2001:660:4406:595:4:0::3"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.3",
-      "ip6": "2001:660:4406:500:4::3",
+      "ip6": "2001:660:4406:500:4:0::3",
       "kavlan": true,
       "mac": "44:a8:42:0a:33:3d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-4.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-4.json
index f9ebf0030dd..36b2d2e0bc6 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-4.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-4.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4::4",
-      "kavlan-11": "2001:660:4406:1a0:504::4",
-      "kavlan-12": "2001:660:4406:2a0:504::4",
-      "kavlan-13": "2001:660:4406:4a0:504::4",
-      "kavlan-14": "2001:660:4406:5a0:504::4",
-      "kavlan-16": "2001:660:4406:7a0:504::4",
-      "kavlan-18": "2001:660:4406:8a0:504::4",
-      "kavlan-2": "2001:660:4406:581:4::4",
-      "kavlan-20": "2001:660:4406:3a0:504::4",
-      "kavlan-21": "2001:660:4406:6a0:504::4",
-      "kavlan-3": "2001:660:4406:582:4::4",
-      "kavlan-4": "2001:660:4406:590:4::4",
-      "kavlan-5": "2001:660:4406:591:4::4",
-      "kavlan-6": "2001:660:4406:592:4::4",
-      "kavlan-7": "2001:660:4406:593:4::4",
-      "kavlan-8": "2001:660:4406:594:4::4",
-      "kavlan-9": "2001:660:4406:595:4::4"
+      "kavlan-1": "2001:660:4406:580:4:0::4",
+      "kavlan-11": "2001:660:4406:1a0:504:0::4",
+      "kavlan-12": "2001:660:4406:2a0:504:0::4",
+      "kavlan-13": "2001:660:4406:4a0:504:0::4",
+      "kavlan-14": "2001:660:4406:5a0:504:0::4",
+      "kavlan-16": "2001:660:4406:7a0:504:0::4",
+      "kavlan-18": "2001:660:4406:8a0:504:0::4",
+      "kavlan-2": "2001:660:4406:581:4:0::4",
+      "kavlan-20": "2001:660:4406:3a0:504:0::4",
+      "kavlan-21": "2001:660:4406:6a0:504:0::4",
+      "kavlan-3": "2001:660:4406:582:4:0::4",
+      "kavlan-4": "2001:660:4406:590:4:0::4",
+      "kavlan-5": "2001:660:4406:591:4:0::4",
+      "kavlan-6": "2001:660:4406:592:4:0::4",
+      "kavlan-7": "2001:660:4406:593:4:0::4",
+      "kavlan-8": "2001:660:4406:594:4:0::4",
+      "kavlan-9": "2001:660:4406:595:4:0::4"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.4",
-      "ip6": "2001:660:4406:500:4::4",
+      "ip6": "2001:660:4406:500:4:0::4",
       "kavlan": true,
       "mac": "44:a8:42:0a:8d:0d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-5.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-5.json
index 8737dae9dcf..434da9b8319 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-5.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-5.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4::5",
-      "kavlan-11": "2001:660:4406:1a0:504::5",
-      "kavlan-12": "2001:660:4406:2a0:504::5",
-      "kavlan-13": "2001:660:4406:4a0:504::5",
-      "kavlan-14": "2001:660:4406:5a0:504::5",
-      "kavlan-16": "2001:660:4406:7a0:504::5",
-      "kavlan-18": "2001:660:4406:8a0:504::5",
-      "kavlan-2": "2001:660:4406:581:4::5",
-      "kavlan-20": "2001:660:4406:3a0:504::5",
-      "kavlan-21": "2001:660:4406:6a0:504::5",
-      "kavlan-3": "2001:660:4406:582:4::5",
-      "kavlan-4": "2001:660:4406:590:4::5",
-      "kavlan-5": "2001:660:4406:591:4::5",
-      "kavlan-6": "2001:660:4406:592:4::5",
-      "kavlan-7": "2001:660:4406:593:4::5",
-      "kavlan-8": "2001:660:4406:594:4::5",
-      "kavlan-9": "2001:660:4406:595:4::5"
+      "kavlan-1": "2001:660:4406:580:4:0::5",
+      "kavlan-11": "2001:660:4406:1a0:504:0::5",
+      "kavlan-12": "2001:660:4406:2a0:504:0::5",
+      "kavlan-13": "2001:660:4406:4a0:504:0::5",
+      "kavlan-14": "2001:660:4406:5a0:504:0::5",
+      "kavlan-16": "2001:660:4406:7a0:504:0::5",
+      "kavlan-18": "2001:660:4406:8a0:504:0::5",
+      "kavlan-2": "2001:660:4406:581:4:0::5",
+      "kavlan-20": "2001:660:4406:3a0:504:0::5",
+      "kavlan-21": "2001:660:4406:6a0:504:0::5",
+      "kavlan-3": "2001:660:4406:582:4:0::5",
+      "kavlan-4": "2001:660:4406:590:4:0::5",
+      "kavlan-5": "2001:660:4406:591:4:0::5",
+      "kavlan-6": "2001:660:4406:592:4:0::5",
+      "kavlan-7": "2001:660:4406:593:4:0::5",
+      "kavlan-8": "2001:660:4406:594:4:0::5",
+      "kavlan-9": "2001:660:4406:595:4:0::5"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.5",
-      "ip6": "2001:660:4406:500:4::5",
+      "ip6": "2001:660:4406:500:4:0::5",
       "kavlan": true,
       "mac": "44:a8:42:0a:4b:9b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-6.json b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-6.json
index 4caae57fdd7..765aaa6c302 100644
--- a/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-6.json
+++ b/data/grid5000/sites/nancy/clusters/graphique/nodes/graphique-6.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:4::6",
-      "kavlan-11": "2001:660:4406:1a0:504::6",
-      "kavlan-12": "2001:660:4406:2a0:504::6",
-      "kavlan-13": "2001:660:4406:4a0:504::6",
-      "kavlan-14": "2001:660:4406:5a0:504::6",
-      "kavlan-16": "2001:660:4406:7a0:504::6",
-      "kavlan-18": "2001:660:4406:8a0:504::6",
-      "kavlan-2": "2001:660:4406:581:4::6",
-      "kavlan-20": "2001:660:4406:3a0:504::6",
-      "kavlan-21": "2001:660:4406:6a0:504::6",
-      "kavlan-3": "2001:660:4406:582:4::6",
-      "kavlan-4": "2001:660:4406:590:4::6",
-      "kavlan-5": "2001:660:4406:591:4::6",
-      "kavlan-6": "2001:660:4406:592:4::6",
-      "kavlan-7": "2001:660:4406:593:4::6",
-      "kavlan-8": "2001:660:4406:594:4::6",
-      "kavlan-9": "2001:660:4406:595:4::6"
+      "kavlan-1": "2001:660:4406:580:4:0::6",
+      "kavlan-11": "2001:660:4406:1a0:504:0::6",
+      "kavlan-12": "2001:660:4406:2a0:504:0::6",
+      "kavlan-13": "2001:660:4406:4a0:504:0::6",
+      "kavlan-14": "2001:660:4406:5a0:504:0::6",
+      "kavlan-16": "2001:660:4406:7a0:504:0::6",
+      "kavlan-18": "2001:660:4406:8a0:504:0::6",
+      "kavlan-2": "2001:660:4406:581:4:0::6",
+      "kavlan-20": "2001:660:4406:3a0:504:0::6",
+      "kavlan-21": "2001:660:4406:6a0:504:0::6",
+      "kavlan-3": "2001:660:4406:582:4:0::6",
+      "kavlan-4": "2001:660:4406:590:4:0::6",
+      "kavlan-5": "2001:660:4406:591:4:0::6",
+      "kavlan-6": "2001:660:4406:592:4:0::6",
+      "kavlan-7": "2001:660:4406:593:4:0::6",
+      "kavlan-8": "2001:660:4406:594:4:0::6",
+      "kavlan-9": "2001:660:4406:595:4:0::6"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "FFV15.05.12 bc 7.14.16",
       "interface": "Ethernet",
       "ip": "172.16.67.6",
-      "ip6": "2001:660:4406:500:4::6",
+      "ip6": "2001:660:4406:500:4:0::6",
       "kavlan": true,
       "mac": "44:a8:42:15:cd:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-1.json b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-1.json
index c7bf73010b1..194e694c846 100644
--- a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-1.json
+++ b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:5::1",
-      "kavlan-11": "2001:660:4406:1a0:505::1",
-      "kavlan-12": "2001:660:4406:2a0:505::1",
-      "kavlan-13": "2001:660:4406:4a0:505::1",
-      "kavlan-14": "2001:660:4406:5a0:505::1",
-      "kavlan-16": "2001:660:4406:7a0:505::1",
-      "kavlan-18": "2001:660:4406:8a0:505::1",
-      "kavlan-2": "2001:660:4406:581:5::1",
-      "kavlan-20": "2001:660:4406:3a0:505::1",
-      "kavlan-21": "2001:660:4406:6a0:505::1",
-      "kavlan-3": "2001:660:4406:582:5::1",
-      "kavlan-4": "2001:660:4406:590:5::1",
-      "kavlan-5": "2001:660:4406:591:5::1",
-      "kavlan-6": "2001:660:4406:592:5::1",
-      "kavlan-7": "2001:660:4406:593:5::1",
-      "kavlan-8": "2001:660:4406:594:5::1",
-      "kavlan-9": "2001:660:4406:595:5::1"
+      "kavlan-1": "2001:660:4406:580:5:0::1",
+      "kavlan-11": "2001:660:4406:1a0:505:0::1",
+      "kavlan-12": "2001:660:4406:2a0:505:0::1",
+      "kavlan-13": "2001:660:4406:4a0:505:0::1",
+      "kavlan-14": "2001:660:4406:5a0:505:0::1",
+      "kavlan-16": "2001:660:4406:7a0:505:0::1",
+      "kavlan-18": "2001:660:4406:8a0:505:0::1",
+      "kavlan-2": "2001:660:4406:581:5:0::1",
+      "kavlan-20": "2001:660:4406:3a0:505:0::1",
+      "kavlan-21": "2001:660:4406:6a0:505:0::1",
+      "kavlan-3": "2001:660:4406:582:5:0::1",
+      "kavlan-4": "2001:660:4406:590:5:0::1",
+      "kavlan-5": "2001:660:4406:591:5:0::1",
+      "kavlan-6": "2001:660:4406:592:5:0::1",
+      "kavlan-7": "2001:660:4406:593:5:0::1",
+      "kavlan-8": "2001:660:4406:594:5:0::1",
+      "kavlan-9": "2001:660:4406:595:5:0::1"
     }
   },
   "main_memory": {
@@ -84,7 +84,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.68.1",
-      "ip6": "2001:660:4406:500:5::1",
+      "ip6": "2001:660:4406:500:5:0::1",
       "kavlan": true,
       "mac": "b8:ca:3a:69:12:68",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-2.json b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-2.json
index bc389a9bd35..467caed18f8 100644
--- a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-2.json
+++ b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:5::2",
-      "kavlan-11": "2001:660:4406:1a0:505::2",
-      "kavlan-12": "2001:660:4406:2a0:505::2",
-      "kavlan-13": "2001:660:4406:4a0:505::2",
-      "kavlan-14": "2001:660:4406:5a0:505::2",
-      "kavlan-16": "2001:660:4406:7a0:505::2",
-      "kavlan-18": "2001:660:4406:8a0:505::2",
-      "kavlan-2": "2001:660:4406:581:5::2",
-      "kavlan-20": "2001:660:4406:3a0:505::2",
-      "kavlan-21": "2001:660:4406:6a0:505::2",
-      "kavlan-3": "2001:660:4406:582:5::2",
-      "kavlan-4": "2001:660:4406:590:5::2",
-      "kavlan-5": "2001:660:4406:591:5::2",
-      "kavlan-6": "2001:660:4406:592:5::2",
-      "kavlan-7": "2001:660:4406:593:5::2",
-      "kavlan-8": "2001:660:4406:594:5::2",
-      "kavlan-9": "2001:660:4406:595:5::2"
+      "kavlan-1": "2001:660:4406:580:5:0::2",
+      "kavlan-11": "2001:660:4406:1a0:505:0::2",
+      "kavlan-12": "2001:660:4406:2a0:505:0::2",
+      "kavlan-13": "2001:660:4406:4a0:505:0::2",
+      "kavlan-14": "2001:660:4406:5a0:505:0::2",
+      "kavlan-16": "2001:660:4406:7a0:505:0::2",
+      "kavlan-18": "2001:660:4406:8a0:505:0::2",
+      "kavlan-2": "2001:660:4406:581:5:0::2",
+      "kavlan-20": "2001:660:4406:3a0:505:0::2",
+      "kavlan-21": "2001:660:4406:6a0:505:0::2",
+      "kavlan-3": "2001:660:4406:582:5:0::2",
+      "kavlan-4": "2001:660:4406:590:5:0::2",
+      "kavlan-5": "2001:660:4406:591:5:0::2",
+      "kavlan-6": "2001:660:4406:592:5:0::2",
+      "kavlan-7": "2001:660:4406:593:5:0::2",
+      "kavlan-8": "2001:660:4406:594:5:0::2",
+      "kavlan-9": "2001:660:4406:595:5:0::2"
     }
   },
   "main_memory": {
@@ -84,7 +84,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.68.2",
-      "ip6": "2001:660:4406:500:5::2",
+      "ip6": "2001:660:4406:500:5:0::2",
       "kavlan": true,
       "mac": "b8:ca:3a:69:1e:88",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-3.json b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-3.json
index ff5d7b7f455..a59a49132f2 100644
--- a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-3.json
+++ b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:5::3",
-      "kavlan-11": "2001:660:4406:1a0:505::3",
-      "kavlan-12": "2001:660:4406:2a0:505::3",
-      "kavlan-13": "2001:660:4406:4a0:505::3",
-      "kavlan-14": "2001:660:4406:5a0:505::3",
-      "kavlan-16": "2001:660:4406:7a0:505::3",
-      "kavlan-18": "2001:660:4406:8a0:505::3",
-      "kavlan-2": "2001:660:4406:581:5::3",
-      "kavlan-20": "2001:660:4406:3a0:505::3",
-      "kavlan-21": "2001:660:4406:6a0:505::3",
-      "kavlan-3": "2001:660:4406:582:5::3",
-      "kavlan-4": "2001:660:4406:590:5::3",
-      "kavlan-5": "2001:660:4406:591:5::3",
-      "kavlan-6": "2001:660:4406:592:5::3",
-      "kavlan-7": "2001:660:4406:593:5::3",
-      "kavlan-8": "2001:660:4406:594:5::3",
-      "kavlan-9": "2001:660:4406:595:5::3"
+      "kavlan-1": "2001:660:4406:580:5:0::3",
+      "kavlan-11": "2001:660:4406:1a0:505:0::3",
+      "kavlan-12": "2001:660:4406:2a0:505:0::3",
+      "kavlan-13": "2001:660:4406:4a0:505:0::3",
+      "kavlan-14": "2001:660:4406:5a0:505:0::3",
+      "kavlan-16": "2001:660:4406:7a0:505:0::3",
+      "kavlan-18": "2001:660:4406:8a0:505:0::3",
+      "kavlan-2": "2001:660:4406:581:5:0::3",
+      "kavlan-20": "2001:660:4406:3a0:505:0::3",
+      "kavlan-21": "2001:660:4406:6a0:505:0::3",
+      "kavlan-3": "2001:660:4406:582:5:0::3",
+      "kavlan-4": "2001:660:4406:590:5:0::3",
+      "kavlan-5": "2001:660:4406:591:5:0::3",
+      "kavlan-6": "2001:660:4406:592:5:0::3",
+      "kavlan-7": "2001:660:4406:593:5:0::3",
+      "kavlan-8": "2001:660:4406:594:5:0::3",
+      "kavlan-9": "2001:660:4406:595:5:0::3"
     }
   },
   "main_memory": {
@@ -84,7 +84,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.68.3",
-      "ip6": "2001:660:4406:500:5::3",
+      "ip6": "2001:660:4406:500:5:0::3",
       "kavlan": true,
       "mac": "b8:ca:3a:69:11:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-4.json b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-4.json
index 1baa416b92b..b07c9dc3786 100644
--- a/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-4.json
+++ b/data/grid5000/sites/nancy/clusters/graphite/nodes/graphite-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:5::4",
-      "kavlan-11": "2001:660:4406:1a0:505::4",
-      "kavlan-12": "2001:660:4406:2a0:505::4",
-      "kavlan-13": "2001:660:4406:4a0:505::4",
-      "kavlan-14": "2001:660:4406:5a0:505::4",
-      "kavlan-16": "2001:660:4406:7a0:505::4",
-      "kavlan-18": "2001:660:4406:8a0:505::4",
-      "kavlan-2": "2001:660:4406:581:5::4",
-      "kavlan-20": "2001:660:4406:3a0:505::4",
-      "kavlan-21": "2001:660:4406:6a0:505::4",
-      "kavlan-3": "2001:660:4406:582:5::4",
-      "kavlan-4": "2001:660:4406:590:5::4",
-      "kavlan-5": "2001:660:4406:591:5::4",
-      "kavlan-6": "2001:660:4406:592:5::4",
-      "kavlan-7": "2001:660:4406:593:5::4",
-      "kavlan-8": "2001:660:4406:594:5::4",
-      "kavlan-9": "2001:660:4406:595:5::4"
+      "kavlan-1": "2001:660:4406:580:5:0::4",
+      "kavlan-11": "2001:660:4406:1a0:505:0::4",
+      "kavlan-12": "2001:660:4406:2a0:505:0::4",
+      "kavlan-13": "2001:660:4406:4a0:505:0::4",
+      "kavlan-14": "2001:660:4406:5a0:505:0::4",
+      "kavlan-16": "2001:660:4406:7a0:505:0::4",
+      "kavlan-18": "2001:660:4406:8a0:505:0::4",
+      "kavlan-2": "2001:660:4406:581:5:0::4",
+      "kavlan-20": "2001:660:4406:3a0:505:0::4",
+      "kavlan-21": "2001:660:4406:6a0:505:0::4",
+      "kavlan-3": "2001:660:4406:582:5:0::4",
+      "kavlan-4": "2001:660:4406:590:5:0::4",
+      "kavlan-5": "2001:660:4406:591:5:0::4",
+      "kavlan-6": "2001:660:4406:592:5:0::4",
+      "kavlan-7": "2001:660:4406:593:5:0::4",
+      "kavlan-8": "2001:660:4406:594:5:0::4",
+      "kavlan-9": "2001:660:4406:595:5:0::4"
     }
   },
   "main_memory": {
@@ -84,7 +84,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.68.4",
-      "ip6": "2001:660:4406:500:5::4",
+      "ip6": "2001:660:4406:500:5:0::4",
       "kavlan": true,
       "mac": "b8:ca:3a:69:12:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-1.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-1.json
index e9ab908570b..b6a650f8b65 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-1.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::1",
-      "kavlan-11": "2001:660:4406:1a0:50f::1",
-      "kavlan-12": "2001:660:4406:2a0:50f::1",
-      "kavlan-13": "2001:660:4406:4a0:50f::1",
-      "kavlan-14": "2001:660:4406:5a0:50f::1",
-      "kavlan-16": "2001:660:4406:7a0:50f::1",
-      "kavlan-18": "2001:660:4406:8a0:50f::1",
-      "kavlan-2": "2001:660:4406:581:f::1",
-      "kavlan-20": "2001:660:4406:3a0:50f::1",
-      "kavlan-21": "2001:660:4406:6a0:50f::1",
-      "kavlan-3": "2001:660:4406:582:f::1",
-      "kavlan-4": "2001:660:4406:590:f::1",
-      "kavlan-5": "2001:660:4406:591:f::1",
-      "kavlan-6": "2001:660:4406:592:f::1",
-      "kavlan-7": "2001:660:4406:593:f::1",
-      "kavlan-8": "2001:660:4406:594:f::1",
-      "kavlan-9": "2001:660:4406:595:f::1"
+      "kavlan-1": "2001:660:4406:580:f:0::1",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::1",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::1",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::1",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::1",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::1",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::1",
+      "kavlan-2": "2001:660:4406:581:f:0::1",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::1",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::1",
+      "kavlan-3": "2001:660:4406:582:f:0::1",
+      "kavlan-4": "2001:660:4406:590:f:0::1",
+      "kavlan-5": "2001:660:4406:591:f:0::1",
+      "kavlan-6": "2001:660:4406:592:f:0::1",
+      "kavlan-7": "2001:660:4406:593:f:0::1",
+      "kavlan-8": "2001:660:4406:594:f:0::1",
+      "kavlan-9": "2001:660:4406:595:f:0::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.1",
-      "ip6": "2001:660:4406:500:f::1",
+      "ip6": "2001:660:4406:500:f:0::1",
       "kavlan": true,
       "mac": "40:a6:b7:1b:64:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-10.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-10.json
index 55c05d01161..fbfc200aa83 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-10.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::a",
-      "kavlan-11": "2001:660:4406:1a0:50f::a",
-      "kavlan-12": "2001:660:4406:2a0:50f::a",
-      "kavlan-13": "2001:660:4406:4a0:50f::a",
-      "kavlan-14": "2001:660:4406:5a0:50f::a",
-      "kavlan-16": "2001:660:4406:7a0:50f::a",
-      "kavlan-18": "2001:660:4406:8a0:50f::a",
-      "kavlan-2": "2001:660:4406:581:f::a",
-      "kavlan-20": "2001:660:4406:3a0:50f::a",
-      "kavlan-21": "2001:660:4406:6a0:50f::a",
-      "kavlan-3": "2001:660:4406:582:f::a",
-      "kavlan-4": "2001:660:4406:590:f::a",
-      "kavlan-5": "2001:660:4406:591:f::a",
-      "kavlan-6": "2001:660:4406:592:f::a",
-      "kavlan-7": "2001:660:4406:593:f::a",
-      "kavlan-8": "2001:660:4406:594:f::a",
-      "kavlan-9": "2001:660:4406:595:f::a"
+      "kavlan-1": "2001:660:4406:580:f:0::a",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::a",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::a",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::a",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::a",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::a",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::a",
+      "kavlan-2": "2001:660:4406:581:f:0::a",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::a",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::a",
+      "kavlan-3": "2001:660:4406:582:f:0::a",
+      "kavlan-4": "2001:660:4406:590:f:0::a",
+      "kavlan-5": "2001:660:4406:591:f:0::a",
+      "kavlan-6": "2001:660:4406:592:f:0::a",
+      "kavlan-7": "2001:660:4406:593:f:0::a",
+      "kavlan-8": "2001:660:4406:594:f:0::a",
+      "kavlan-9": "2001:660:4406:595:f:0::a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.10",
-      "ip6": "2001:660:4406:500:f::a",
+      "ip6": "2001:660:4406:500:f:0::a",
       "kavlan": true,
       "mac": "40:a6:b7:1b:68:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-11.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-11.json
index 690df551470..e8380d29ada 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-11.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::b",
-      "kavlan-11": "2001:660:4406:1a0:50f::b",
-      "kavlan-12": "2001:660:4406:2a0:50f::b",
-      "kavlan-13": "2001:660:4406:4a0:50f::b",
-      "kavlan-14": "2001:660:4406:5a0:50f::b",
-      "kavlan-16": "2001:660:4406:7a0:50f::b",
-      "kavlan-18": "2001:660:4406:8a0:50f::b",
-      "kavlan-2": "2001:660:4406:581:f::b",
-      "kavlan-20": "2001:660:4406:3a0:50f::b",
-      "kavlan-21": "2001:660:4406:6a0:50f::b",
-      "kavlan-3": "2001:660:4406:582:f::b",
-      "kavlan-4": "2001:660:4406:590:f::b",
-      "kavlan-5": "2001:660:4406:591:f::b",
-      "kavlan-6": "2001:660:4406:592:f::b",
-      "kavlan-7": "2001:660:4406:593:f::b",
-      "kavlan-8": "2001:660:4406:594:f::b",
-      "kavlan-9": "2001:660:4406:595:f::b"
+      "kavlan-1": "2001:660:4406:580:f:0::b",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::b",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::b",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::b",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::b",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::b",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::b",
+      "kavlan-2": "2001:660:4406:581:f:0::b",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::b",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::b",
+      "kavlan-3": "2001:660:4406:582:f:0::b",
+      "kavlan-4": "2001:660:4406:590:f:0::b",
+      "kavlan-5": "2001:660:4406:591:f:0::b",
+      "kavlan-6": "2001:660:4406:592:f:0::b",
+      "kavlan-7": "2001:660:4406:593:f:0::b",
+      "kavlan-8": "2001:660:4406:594:f:0::b",
+      "kavlan-9": "2001:660:4406:595:f:0::b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.11",
-      "ip6": "2001:660:4406:500:f::b",
+      "ip6": "2001:660:4406:500:f:0::b",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6b:e0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-12.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-12.json
index bf8cc64d8ac..5b1edabde36 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-12.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::c",
-      "kavlan-11": "2001:660:4406:1a0:50f::c",
-      "kavlan-12": "2001:660:4406:2a0:50f::c",
-      "kavlan-13": "2001:660:4406:4a0:50f::c",
-      "kavlan-14": "2001:660:4406:5a0:50f::c",
-      "kavlan-16": "2001:660:4406:7a0:50f::c",
-      "kavlan-18": "2001:660:4406:8a0:50f::c",
-      "kavlan-2": "2001:660:4406:581:f::c",
-      "kavlan-20": "2001:660:4406:3a0:50f::c",
-      "kavlan-21": "2001:660:4406:6a0:50f::c",
-      "kavlan-3": "2001:660:4406:582:f::c",
-      "kavlan-4": "2001:660:4406:590:f::c",
-      "kavlan-5": "2001:660:4406:591:f::c",
-      "kavlan-6": "2001:660:4406:592:f::c",
-      "kavlan-7": "2001:660:4406:593:f::c",
-      "kavlan-8": "2001:660:4406:594:f::c",
-      "kavlan-9": "2001:660:4406:595:f::c"
+      "kavlan-1": "2001:660:4406:580:f:0::c",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::c",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::c",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::c",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::c",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::c",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::c",
+      "kavlan-2": "2001:660:4406:581:f:0::c",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::c",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::c",
+      "kavlan-3": "2001:660:4406:582:f:0::c",
+      "kavlan-4": "2001:660:4406:590:f:0::c",
+      "kavlan-5": "2001:660:4406:591:f:0::c",
+      "kavlan-6": "2001:660:4406:592:f:0::c",
+      "kavlan-7": "2001:660:4406:593:f:0::c",
+      "kavlan-8": "2001:660:4406:594:f:0::c",
+      "kavlan-9": "2001:660:4406:595:f:0::c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.12",
-      "ip6": "2001:660:4406:500:f::c",
+      "ip6": "2001:660:4406:500:f:0::c",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6b:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-13.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-13.json
index 892939c1e5b..f00fc0375bb 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-13.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::d",
-      "kavlan-11": "2001:660:4406:1a0:50f::d",
-      "kavlan-12": "2001:660:4406:2a0:50f::d",
-      "kavlan-13": "2001:660:4406:4a0:50f::d",
-      "kavlan-14": "2001:660:4406:5a0:50f::d",
-      "kavlan-16": "2001:660:4406:7a0:50f::d",
-      "kavlan-18": "2001:660:4406:8a0:50f::d",
-      "kavlan-2": "2001:660:4406:581:f::d",
-      "kavlan-20": "2001:660:4406:3a0:50f::d",
-      "kavlan-21": "2001:660:4406:6a0:50f::d",
-      "kavlan-3": "2001:660:4406:582:f::d",
-      "kavlan-4": "2001:660:4406:590:f::d",
-      "kavlan-5": "2001:660:4406:591:f::d",
-      "kavlan-6": "2001:660:4406:592:f::d",
-      "kavlan-7": "2001:660:4406:593:f::d",
-      "kavlan-8": "2001:660:4406:594:f::d",
-      "kavlan-9": "2001:660:4406:595:f::d"
+      "kavlan-1": "2001:660:4406:580:f:0::d",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::d",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::d",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::d",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::d",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::d",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::d",
+      "kavlan-2": "2001:660:4406:581:f:0::d",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::d",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::d",
+      "kavlan-3": "2001:660:4406:582:f:0::d",
+      "kavlan-4": "2001:660:4406:590:f:0::d",
+      "kavlan-5": "2001:660:4406:591:f:0::d",
+      "kavlan-6": "2001:660:4406:592:f:0::d",
+      "kavlan-7": "2001:660:4406:593:f:0::d",
+      "kavlan-8": "2001:660:4406:594:f:0::d",
+      "kavlan-9": "2001:660:4406:595:f:0::d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.13",
-      "ip6": "2001:660:4406:500:f::d",
+      "ip6": "2001:660:4406:500:f:0::d",
       "kavlan": true,
       "mac": "40:a6:b7:1b:69:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-14.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-14.json
index b84a5d86031..def141126ff 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-14.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::e",
-      "kavlan-11": "2001:660:4406:1a0:50f::e",
-      "kavlan-12": "2001:660:4406:2a0:50f::e",
-      "kavlan-13": "2001:660:4406:4a0:50f::e",
-      "kavlan-14": "2001:660:4406:5a0:50f::e",
-      "kavlan-16": "2001:660:4406:7a0:50f::e",
-      "kavlan-18": "2001:660:4406:8a0:50f::e",
-      "kavlan-2": "2001:660:4406:581:f::e",
-      "kavlan-20": "2001:660:4406:3a0:50f::e",
-      "kavlan-21": "2001:660:4406:6a0:50f::e",
-      "kavlan-3": "2001:660:4406:582:f::e",
-      "kavlan-4": "2001:660:4406:590:f::e",
-      "kavlan-5": "2001:660:4406:591:f::e",
-      "kavlan-6": "2001:660:4406:592:f::e",
-      "kavlan-7": "2001:660:4406:593:f::e",
-      "kavlan-8": "2001:660:4406:594:f::e",
-      "kavlan-9": "2001:660:4406:595:f::e"
+      "kavlan-1": "2001:660:4406:580:f:0::e",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::e",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::e",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::e",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::e",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::e",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::e",
+      "kavlan-2": "2001:660:4406:581:f:0::e",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::e",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::e",
+      "kavlan-3": "2001:660:4406:582:f:0::e",
+      "kavlan-4": "2001:660:4406:590:f:0::e",
+      "kavlan-5": "2001:660:4406:591:f:0::e",
+      "kavlan-6": "2001:660:4406:592:f:0::e",
+      "kavlan-7": "2001:660:4406:593:f:0::e",
+      "kavlan-8": "2001:660:4406:594:f:0::e",
+      "kavlan-9": "2001:660:4406:595:f:0::e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.14",
-      "ip6": "2001:660:4406:500:f::e",
+      "ip6": "2001:660:4406:500:f:0::e",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6b:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-15.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-15.json
index 39c2964e7c1..f1baaee800c 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-15.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::f",
-      "kavlan-11": "2001:660:4406:1a0:50f::f",
-      "kavlan-12": "2001:660:4406:2a0:50f::f",
-      "kavlan-13": "2001:660:4406:4a0:50f::f",
-      "kavlan-14": "2001:660:4406:5a0:50f::f",
-      "kavlan-16": "2001:660:4406:7a0:50f::f",
-      "kavlan-18": "2001:660:4406:8a0:50f::f",
-      "kavlan-2": "2001:660:4406:581:f::f",
-      "kavlan-20": "2001:660:4406:3a0:50f::f",
-      "kavlan-21": "2001:660:4406:6a0:50f::f",
-      "kavlan-3": "2001:660:4406:582:f::f",
-      "kavlan-4": "2001:660:4406:590:f::f",
-      "kavlan-5": "2001:660:4406:591:f::f",
-      "kavlan-6": "2001:660:4406:592:f::f",
-      "kavlan-7": "2001:660:4406:593:f::f",
-      "kavlan-8": "2001:660:4406:594:f::f",
-      "kavlan-9": "2001:660:4406:595:f::f"
+      "kavlan-1": "2001:660:4406:580:f:0::f",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::f",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::f",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::f",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::f",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::f",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::f",
+      "kavlan-2": "2001:660:4406:581:f:0::f",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::f",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::f",
+      "kavlan-3": "2001:660:4406:582:f:0::f",
+      "kavlan-4": "2001:660:4406:590:f:0::f",
+      "kavlan-5": "2001:660:4406:591:f:0::f",
+      "kavlan-6": "2001:660:4406:592:f:0::f",
+      "kavlan-7": "2001:660:4406:593:f:0::f",
+      "kavlan-8": "2001:660:4406:594:f:0::f",
+      "kavlan-9": "2001:660:4406:595:f:0::f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.15",
-      "ip6": "2001:660:4406:500:f::f",
+      "ip6": "2001:660:4406:500:f:0::f",
       "kavlan": true,
       "mac": "40:a6:b7:1b:69:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-16.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-16.json
index f00060cac94..eb9e474dd48 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-16.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::10",
-      "kavlan-11": "2001:660:4406:1a0:50f::10",
-      "kavlan-12": "2001:660:4406:2a0:50f::10",
-      "kavlan-13": "2001:660:4406:4a0:50f::10",
-      "kavlan-14": "2001:660:4406:5a0:50f::10",
-      "kavlan-16": "2001:660:4406:7a0:50f::10",
-      "kavlan-18": "2001:660:4406:8a0:50f::10",
-      "kavlan-2": "2001:660:4406:581:f::10",
-      "kavlan-20": "2001:660:4406:3a0:50f::10",
-      "kavlan-21": "2001:660:4406:6a0:50f::10",
-      "kavlan-3": "2001:660:4406:582:f::10",
-      "kavlan-4": "2001:660:4406:590:f::10",
-      "kavlan-5": "2001:660:4406:591:f::10",
-      "kavlan-6": "2001:660:4406:592:f::10",
-      "kavlan-7": "2001:660:4406:593:f::10",
-      "kavlan-8": "2001:660:4406:594:f::10",
-      "kavlan-9": "2001:660:4406:595:f::10"
+      "kavlan-1": "2001:660:4406:580:f:0::10",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::10",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::10",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::10",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::10",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::10",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::10",
+      "kavlan-2": "2001:660:4406:581:f:0::10",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::10",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::10",
+      "kavlan-3": "2001:660:4406:582:f:0::10",
+      "kavlan-4": "2001:660:4406:590:f:0::10",
+      "kavlan-5": "2001:660:4406:591:f:0::10",
+      "kavlan-6": "2001:660:4406:592:f:0::10",
+      "kavlan-7": "2001:660:4406:593:f:0::10",
+      "kavlan-8": "2001:660:4406:594:f:0::10",
+      "kavlan-9": "2001:660:4406:595:f:0::10"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.16",
-      "ip6": "2001:660:4406:500:f::10",
+      "ip6": "2001:660:4406:500:f:0::10",
       "kavlan": true,
       "mac": "40:a6:b7:1b:68:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-2.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-2.json
index ccd59b2ae96..a2207764c21 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-2.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::2",
-      "kavlan-11": "2001:660:4406:1a0:50f::2",
-      "kavlan-12": "2001:660:4406:2a0:50f::2",
-      "kavlan-13": "2001:660:4406:4a0:50f::2",
-      "kavlan-14": "2001:660:4406:5a0:50f::2",
-      "kavlan-16": "2001:660:4406:7a0:50f::2",
-      "kavlan-18": "2001:660:4406:8a0:50f::2",
-      "kavlan-2": "2001:660:4406:581:f::2",
-      "kavlan-20": "2001:660:4406:3a0:50f::2",
-      "kavlan-21": "2001:660:4406:6a0:50f::2",
-      "kavlan-3": "2001:660:4406:582:f::2",
-      "kavlan-4": "2001:660:4406:590:f::2",
-      "kavlan-5": "2001:660:4406:591:f::2",
-      "kavlan-6": "2001:660:4406:592:f::2",
-      "kavlan-7": "2001:660:4406:593:f::2",
-      "kavlan-8": "2001:660:4406:594:f::2",
-      "kavlan-9": "2001:660:4406:595:f::2"
+      "kavlan-1": "2001:660:4406:580:f:0::2",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::2",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::2",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::2",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::2",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::2",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::2",
+      "kavlan-2": "2001:660:4406:581:f:0::2",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::2",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::2",
+      "kavlan-3": "2001:660:4406:582:f:0::2",
+      "kavlan-4": "2001:660:4406:590:f:0::2",
+      "kavlan-5": "2001:660:4406:591:f:0::2",
+      "kavlan-6": "2001:660:4406:592:f:0::2",
+      "kavlan-7": "2001:660:4406:593:f:0::2",
+      "kavlan-8": "2001:660:4406:594:f:0::2",
+      "kavlan-9": "2001:660:4406:595:f:0::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.2",
-      "ip6": "2001:660:4406:500:f::2",
+      "ip6": "2001:660:4406:500:f:0::2",
       "kavlan": true,
       "mac": "40:a6:b7:1b:a9:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-3.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-3.json
index e89f1ad8963..52529c4affb 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-3.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::3",
-      "kavlan-11": "2001:660:4406:1a0:50f::3",
-      "kavlan-12": "2001:660:4406:2a0:50f::3",
-      "kavlan-13": "2001:660:4406:4a0:50f::3",
-      "kavlan-14": "2001:660:4406:5a0:50f::3",
-      "kavlan-16": "2001:660:4406:7a0:50f::3",
-      "kavlan-18": "2001:660:4406:8a0:50f::3",
-      "kavlan-2": "2001:660:4406:581:f::3",
-      "kavlan-20": "2001:660:4406:3a0:50f::3",
-      "kavlan-21": "2001:660:4406:6a0:50f::3",
-      "kavlan-3": "2001:660:4406:582:f::3",
-      "kavlan-4": "2001:660:4406:590:f::3",
-      "kavlan-5": "2001:660:4406:591:f::3",
-      "kavlan-6": "2001:660:4406:592:f::3",
-      "kavlan-7": "2001:660:4406:593:f::3",
-      "kavlan-8": "2001:660:4406:594:f::3",
-      "kavlan-9": "2001:660:4406:595:f::3"
+      "kavlan-1": "2001:660:4406:580:f:0::3",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::3",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::3",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::3",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::3",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::3",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::3",
+      "kavlan-2": "2001:660:4406:581:f:0::3",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::3",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::3",
+      "kavlan-3": "2001:660:4406:582:f:0::3",
+      "kavlan-4": "2001:660:4406:590:f:0::3",
+      "kavlan-5": "2001:660:4406:591:f:0::3",
+      "kavlan-6": "2001:660:4406:592:f:0::3",
+      "kavlan-7": "2001:660:4406:593:f:0::3",
+      "kavlan-8": "2001:660:4406:594:f:0::3",
+      "kavlan-9": "2001:660:4406:595:f:0::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.3",
-      "ip6": "2001:660:4406:500:f::3",
+      "ip6": "2001:660:4406:500:f:0::3",
       "kavlan": true,
       "mac": "40:a6:b7:1b:ab:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-4.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-4.json
index dda2a516445..11d033f8c7f 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-4.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::4",
-      "kavlan-11": "2001:660:4406:1a0:50f::4",
-      "kavlan-12": "2001:660:4406:2a0:50f::4",
-      "kavlan-13": "2001:660:4406:4a0:50f::4",
-      "kavlan-14": "2001:660:4406:5a0:50f::4",
-      "kavlan-16": "2001:660:4406:7a0:50f::4",
-      "kavlan-18": "2001:660:4406:8a0:50f::4",
-      "kavlan-2": "2001:660:4406:581:f::4",
-      "kavlan-20": "2001:660:4406:3a0:50f::4",
-      "kavlan-21": "2001:660:4406:6a0:50f::4",
-      "kavlan-3": "2001:660:4406:582:f::4",
-      "kavlan-4": "2001:660:4406:590:f::4",
-      "kavlan-5": "2001:660:4406:591:f::4",
-      "kavlan-6": "2001:660:4406:592:f::4",
-      "kavlan-7": "2001:660:4406:593:f::4",
-      "kavlan-8": "2001:660:4406:594:f::4",
-      "kavlan-9": "2001:660:4406:595:f::4"
+      "kavlan-1": "2001:660:4406:580:f:0::4",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::4",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::4",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::4",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::4",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::4",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::4",
+      "kavlan-2": "2001:660:4406:581:f:0::4",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::4",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::4",
+      "kavlan-3": "2001:660:4406:582:f:0::4",
+      "kavlan-4": "2001:660:4406:590:f:0::4",
+      "kavlan-5": "2001:660:4406:591:f:0::4",
+      "kavlan-6": "2001:660:4406:592:f:0::4",
+      "kavlan-7": "2001:660:4406:593:f:0::4",
+      "kavlan-8": "2001:660:4406:594:f:0::4",
+      "kavlan-9": "2001:660:4406:595:f:0::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.4",
-      "ip6": "2001:660:4406:500:f::4",
+      "ip6": "2001:660:4406:500:f:0::4",
       "kavlan": true,
       "mac": "40:a6:b7:1b:b4:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-5.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-5.json
index 30ebf88284d..dc0295c1cdd 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-5.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::5",
-      "kavlan-11": "2001:660:4406:1a0:50f::5",
-      "kavlan-12": "2001:660:4406:2a0:50f::5",
-      "kavlan-13": "2001:660:4406:4a0:50f::5",
-      "kavlan-14": "2001:660:4406:5a0:50f::5",
-      "kavlan-16": "2001:660:4406:7a0:50f::5",
-      "kavlan-18": "2001:660:4406:8a0:50f::5",
-      "kavlan-2": "2001:660:4406:581:f::5",
-      "kavlan-20": "2001:660:4406:3a0:50f::5",
-      "kavlan-21": "2001:660:4406:6a0:50f::5",
-      "kavlan-3": "2001:660:4406:582:f::5",
-      "kavlan-4": "2001:660:4406:590:f::5",
-      "kavlan-5": "2001:660:4406:591:f::5",
-      "kavlan-6": "2001:660:4406:592:f::5",
-      "kavlan-7": "2001:660:4406:593:f::5",
-      "kavlan-8": "2001:660:4406:594:f::5",
-      "kavlan-9": "2001:660:4406:595:f::5"
+      "kavlan-1": "2001:660:4406:580:f:0::5",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::5",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::5",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::5",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::5",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::5",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::5",
+      "kavlan-2": "2001:660:4406:581:f:0::5",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::5",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::5",
+      "kavlan-3": "2001:660:4406:582:f:0::5",
+      "kavlan-4": "2001:660:4406:590:f:0::5",
+      "kavlan-5": "2001:660:4406:591:f:0::5",
+      "kavlan-6": "2001:660:4406:592:f:0::5",
+      "kavlan-7": "2001:660:4406:593:f:0::5",
+      "kavlan-8": "2001:660:4406:594:f:0::5",
+      "kavlan-9": "2001:660:4406:595:f:0::5"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.5",
-      "ip6": "2001:660:4406:500:f::5",
+      "ip6": "2001:660:4406:500:f:0::5",
       "kavlan": true,
       "mac": "40:a6:b7:1b:b9:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-6.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-6.json
index 628b489f6cb..243307bf403 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-6.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::6",
-      "kavlan-11": "2001:660:4406:1a0:50f::6",
-      "kavlan-12": "2001:660:4406:2a0:50f::6",
-      "kavlan-13": "2001:660:4406:4a0:50f::6",
-      "kavlan-14": "2001:660:4406:5a0:50f::6",
-      "kavlan-16": "2001:660:4406:7a0:50f::6",
-      "kavlan-18": "2001:660:4406:8a0:50f::6",
-      "kavlan-2": "2001:660:4406:581:f::6",
-      "kavlan-20": "2001:660:4406:3a0:50f::6",
-      "kavlan-21": "2001:660:4406:6a0:50f::6",
-      "kavlan-3": "2001:660:4406:582:f::6",
-      "kavlan-4": "2001:660:4406:590:f::6",
-      "kavlan-5": "2001:660:4406:591:f::6",
-      "kavlan-6": "2001:660:4406:592:f::6",
-      "kavlan-7": "2001:660:4406:593:f::6",
-      "kavlan-8": "2001:660:4406:594:f::6",
-      "kavlan-9": "2001:660:4406:595:f::6"
+      "kavlan-1": "2001:660:4406:580:f:0::6",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::6",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::6",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::6",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::6",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::6",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::6",
+      "kavlan-2": "2001:660:4406:581:f:0::6",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::6",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::6",
+      "kavlan-3": "2001:660:4406:582:f:0::6",
+      "kavlan-4": "2001:660:4406:590:f:0::6",
+      "kavlan-5": "2001:660:4406:591:f:0::6",
+      "kavlan-6": "2001:660:4406:592:f:0::6",
+      "kavlan-7": "2001:660:4406:593:f:0::6",
+      "kavlan-8": "2001:660:4406:594:f:0::6",
+      "kavlan-9": "2001:660:4406:595:f:0::6"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.6",
-      "ip6": "2001:660:4406:500:f::6",
+      "ip6": "2001:660:4406:500:f:0::6",
       "kavlan": true,
       "mac": "40:a6:b7:1b:64:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-7.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-7.json
index 4177172241c..e5a1ed5d21b 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-7.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::7",
-      "kavlan-11": "2001:660:4406:1a0:50f::7",
-      "kavlan-12": "2001:660:4406:2a0:50f::7",
-      "kavlan-13": "2001:660:4406:4a0:50f::7",
-      "kavlan-14": "2001:660:4406:5a0:50f::7",
-      "kavlan-16": "2001:660:4406:7a0:50f::7",
-      "kavlan-18": "2001:660:4406:8a0:50f::7",
-      "kavlan-2": "2001:660:4406:581:f::7",
-      "kavlan-20": "2001:660:4406:3a0:50f::7",
-      "kavlan-21": "2001:660:4406:6a0:50f::7",
-      "kavlan-3": "2001:660:4406:582:f::7",
-      "kavlan-4": "2001:660:4406:590:f::7",
-      "kavlan-5": "2001:660:4406:591:f::7",
-      "kavlan-6": "2001:660:4406:592:f::7",
-      "kavlan-7": "2001:660:4406:593:f::7",
-      "kavlan-8": "2001:660:4406:594:f::7",
-      "kavlan-9": "2001:660:4406:595:f::7"
+      "kavlan-1": "2001:660:4406:580:f:0::7",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::7",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::7",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::7",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::7",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::7",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::7",
+      "kavlan-2": "2001:660:4406:581:f:0::7",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::7",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::7",
+      "kavlan-3": "2001:660:4406:582:f:0::7",
+      "kavlan-4": "2001:660:4406:590:f:0::7",
+      "kavlan-5": "2001:660:4406:591:f:0::7",
+      "kavlan-6": "2001:660:4406:592:f:0::7",
+      "kavlan-7": "2001:660:4406:593:f:0::7",
+      "kavlan-8": "2001:660:4406:594:f:0::7",
+      "kavlan-9": "2001:660:4406:595:f:0::7"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.7",
-      "ip6": "2001:660:4406:500:f::7",
+      "ip6": "2001:660:4406:500:f:0::7",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6a:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-8.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-8.json
index c33798a377f..f8c2d0b4c39 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-8.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::8",
-      "kavlan-11": "2001:660:4406:1a0:50f::8",
-      "kavlan-12": "2001:660:4406:2a0:50f::8",
-      "kavlan-13": "2001:660:4406:4a0:50f::8",
-      "kavlan-14": "2001:660:4406:5a0:50f::8",
-      "kavlan-16": "2001:660:4406:7a0:50f::8",
-      "kavlan-18": "2001:660:4406:8a0:50f::8",
-      "kavlan-2": "2001:660:4406:581:f::8",
-      "kavlan-20": "2001:660:4406:3a0:50f::8",
-      "kavlan-21": "2001:660:4406:6a0:50f::8",
-      "kavlan-3": "2001:660:4406:582:f::8",
-      "kavlan-4": "2001:660:4406:590:f::8",
-      "kavlan-5": "2001:660:4406:591:f::8",
-      "kavlan-6": "2001:660:4406:592:f::8",
-      "kavlan-7": "2001:660:4406:593:f::8",
-      "kavlan-8": "2001:660:4406:594:f::8",
-      "kavlan-9": "2001:660:4406:595:f::8"
+      "kavlan-1": "2001:660:4406:580:f:0::8",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::8",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::8",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::8",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::8",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::8",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::8",
+      "kavlan-2": "2001:660:4406:581:f:0::8",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::8",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::8",
+      "kavlan-3": "2001:660:4406:582:f:0::8",
+      "kavlan-4": "2001:660:4406:590:f:0::8",
+      "kavlan-5": "2001:660:4406:591:f:0::8",
+      "kavlan-6": "2001:660:4406:592:f:0::8",
+      "kavlan-7": "2001:660:4406:593:f:0::8",
+      "kavlan-8": "2001:660:4406:594:f:0::8",
+      "kavlan-9": "2001:660:4406:595:f:0::8"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.8",
-      "ip6": "2001:660:4406:500:f::8",
+      "ip6": "2001:660:4406:500:f:0::8",
       "kavlan": true,
       "mac": "40:a6:b7:1b:ac:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-9.json b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-9.json
index 303684a1ad4..0eb5aaf8f4b 100644
--- a/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-9.json
+++ b/data/grid5000/sites/nancy/clusters/grappe/nodes/grappe-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:f::9",
-      "kavlan-11": "2001:660:4406:1a0:50f::9",
-      "kavlan-12": "2001:660:4406:2a0:50f::9",
-      "kavlan-13": "2001:660:4406:4a0:50f::9",
-      "kavlan-14": "2001:660:4406:5a0:50f::9",
-      "kavlan-16": "2001:660:4406:7a0:50f::9",
-      "kavlan-18": "2001:660:4406:8a0:50f::9",
-      "kavlan-2": "2001:660:4406:581:f::9",
-      "kavlan-20": "2001:660:4406:3a0:50f::9",
-      "kavlan-21": "2001:660:4406:6a0:50f::9",
-      "kavlan-3": "2001:660:4406:582:f::9",
-      "kavlan-4": "2001:660:4406:590:f::9",
-      "kavlan-5": "2001:660:4406:591:f::9",
-      "kavlan-6": "2001:660:4406:592:f::9",
-      "kavlan-7": "2001:660:4406:593:f::9",
-      "kavlan-8": "2001:660:4406:594:f::9",
-      "kavlan-9": "2001:660:4406:595:f::9"
+      "kavlan-1": "2001:660:4406:580:f:0::9",
+      "kavlan-11": "2001:660:4406:1a0:50f:0::9",
+      "kavlan-12": "2001:660:4406:2a0:50f:0::9",
+      "kavlan-13": "2001:660:4406:4a0:50f:0::9",
+      "kavlan-14": "2001:660:4406:5a0:50f:0::9",
+      "kavlan-16": "2001:660:4406:7a0:50f:0::9",
+      "kavlan-18": "2001:660:4406:8a0:50f:0::9",
+      "kavlan-2": "2001:660:4406:581:f:0::9",
+      "kavlan-20": "2001:660:4406:3a0:50f:0::9",
+      "kavlan-21": "2001:660:4406:6a0:50f:0::9",
+      "kavlan-3": "2001:660:4406:582:f:0::9",
+      "kavlan-4": "2001:660:4406:590:f:0::9",
+      "kavlan-5": "2001:660:4406:591:f:0::9",
+      "kavlan-6": "2001:660:4406:592:f:0::9",
+      "kavlan-7": "2001:660:4406:593:f:0::9",
+      "kavlan-8": "2001:660:4406:594:f:0::9",
+      "kavlan-9": "2001:660:4406:595:f:0::9"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e6 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.78.9",
-      "ip6": "2001:660:4406:500:f::9",
+      "ip6": "2001:660:4406:500:f:0::9",
       "kavlan": true,
       "mac": "40:a6:b7:1b:6d:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-1.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-1.json
index 508edc5fc07..3d3b4e2922a 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-1.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::1",
-      "kavlan-11": "2001:660:4406:1a0:50c::1",
-      "kavlan-12": "2001:660:4406:2a0:50c::1",
-      "kavlan-13": "2001:660:4406:4a0:50c::1",
-      "kavlan-14": "2001:660:4406:5a0:50c::1",
-      "kavlan-16": "2001:660:4406:7a0:50c::1",
-      "kavlan-18": "2001:660:4406:8a0:50c::1",
-      "kavlan-2": "2001:660:4406:581:c::1",
-      "kavlan-20": "2001:660:4406:3a0:50c::1",
-      "kavlan-21": "2001:660:4406:6a0:50c::1",
-      "kavlan-3": "2001:660:4406:582:c::1",
-      "kavlan-4": "2001:660:4406:590:c::1",
-      "kavlan-5": "2001:660:4406:591:c::1",
-      "kavlan-6": "2001:660:4406:592:c::1",
-      "kavlan-7": "2001:660:4406:593:c::1",
-      "kavlan-8": "2001:660:4406:594:c::1",
-      "kavlan-9": "2001:660:4406:595:c::1"
+      "kavlan-1": "2001:660:4406:580:c:0::1",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::1",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::1",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::1",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::1",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::1",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::1",
+      "kavlan-2": "2001:660:4406:581:c:0::1",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::1",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::1",
+      "kavlan-3": "2001:660:4406:582:c:0::1",
+      "kavlan-4": "2001:660:4406:590:c:0::1",
+      "kavlan-5": "2001:660:4406:591:c:0::1",
+      "kavlan-6": "2001:660:4406:592:c:0::1",
+      "kavlan-7": "2001:660:4406:593:c:0::1",
+      "kavlan-8": "2001:660:4406:594:c:0::1",
+      "kavlan-9": "2001:660:4406:595:c:0::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.1",
-      "ip6": "2001:660:4406:500:c::1",
+      "ip6": "2001:660:4406:500:c:0::1",
       "kavlan": true,
       "mac": "84:8f:69:fd:0b:ea",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-10.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-10.json
index c888404b52b..1f9ac873c30 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-10.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::a",
-      "kavlan-11": "2001:660:4406:1a0:50c::a",
-      "kavlan-12": "2001:660:4406:2a0:50c::a",
-      "kavlan-13": "2001:660:4406:4a0:50c::a",
-      "kavlan-14": "2001:660:4406:5a0:50c::a",
-      "kavlan-16": "2001:660:4406:7a0:50c::a",
-      "kavlan-18": "2001:660:4406:8a0:50c::a",
-      "kavlan-2": "2001:660:4406:581:c::a",
-      "kavlan-20": "2001:660:4406:3a0:50c::a",
-      "kavlan-21": "2001:660:4406:6a0:50c::a",
-      "kavlan-3": "2001:660:4406:582:c::a",
-      "kavlan-4": "2001:660:4406:590:c::a",
-      "kavlan-5": "2001:660:4406:591:c::a",
-      "kavlan-6": "2001:660:4406:592:c::a",
-      "kavlan-7": "2001:660:4406:593:c::a",
-      "kavlan-8": "2001:660:4406:594:c::a",
-      "kavlan-9": "2001:660:4406:595:c::a"
+      "kavlan-1": "2001:660:4406:580:c:0::a",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::a",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::a",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::a",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::a",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::a",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::a",
+      "kavlan-2": "2001:660:4406:581:c:0::a",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::a",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::a",
+      "kavlan-3": "2001:660:4406:582:c:0::a",
+      "kavlan-4": "2001:660:4406:590:c:0::a",
+      "kavlan-5": "2001:660:4406:591:c:0::a",
+      "kavlan-6": "2001:660:4406:592:c:0::a",
+      "kavlan-7": "2001:660:4406:593:c:0::a",
+      "kavlan-8": "2001:660:4406:594:c:0::a",
+      "kavlan-9": "2001:660:4406:595:c:0::a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.10",
-      "ip6": "2001:660:4406:500:c::a",
+      "ip6": "2001:660:4406:500:c:0::a",
       "kavlan": true,
       "mac": "84:8f:69:fd:0b:c9",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-11.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-11.json
index f984320a943..68179a1ba50 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-11.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::b",
-      "kavlan-11": "2001:660:4406:1a0:50c::b",
-      "kavlan-12": "2001:660:4406:2a0:50c::b",
-      "kavlan-13": "2001:660:4406:4a0:50c::b",
-      "kavlan-14": "2001:660:4406:5a0:50c::b",
-      "kavlan-16": "2001:660:4406:7a0:50c::b",
-      "kavlan-18": "2001:660:4406:8a0:50c::b",
-      "kavlan-2": "2001:660:4406:581:c::b",
-      "kavlan-20": "2001:660:4406:3a0:50c::b",
-      "kavlan-21": "2001:660:4406:6a0:50c::b",
-      "kavlan-3": "2001:660:4406:582:c::b",
-      "kavlan-4": "2001:660:4406:590:c::b",
-      "kavlan-5": "2001:660:4406:591:c::b",
-      "kavlan-6": "2001:660:4406:592:c::b",
-      "kavlan-7": "2001:660:4406:593:c::b",
-      "kavlan-8": "2001:660:4406:594:c::b",
-      "kavlan-9": "2001:660:4406:595:c::b"
+      "kavlan-1": "2001:660:4406:580:c:0::b",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::b",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::b",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::b",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::b",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::b",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::b",
+      "kavlan-2": "2001:660:4406:581:c:0::b",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::b",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::b",
+      "kavlan-3": "2001:660:4406:582:c:0::b",
+      "kavlan-4": "2001:660:4406:590:c:0::b",
+      "kavlan-5": "2001:660:4406:591:c:0::b",
+      "kavlan-6": "2001:660:4406:592:c:0::b",
+      "kavlan-7": "2001:660:4406:593:c:0::b",
+      "kavlan-8": "2001:660:4406:594:c:0::b",
+      "kavlan-9": "2001:660:4406:595:c:0::b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.11",
-      "ip6": "2001:660:4406:500:c::b",
+      "ip6": "2001:660:4406:500:c:0::b",
       "kavlan": true,
       "mac": "84:8f:69:fd:43:37",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-12.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-12.json
index 47ae48cc2ab..c846111f7b1 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-12.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::c",
-      "kavlan-11": "2001:660:4406:1a0:50c::c",
-      "kavlan-12": "2001:660:4406:2a0:50c::c",
-      "kavlan-13": "2001:660:4406:4a0:50c::c",
-      "kavlan-14": "2001:660:4406:5a0:50c::c",
-      "kavlan-16": "2001:660:4406:7a0:50c::c",
-      "kavlan-18": "2001:660:4406:8a0:50c::c",
-      "kavlan-2": "2001:660:4406:581:c::c",
-      "kavlan-20": "2001:660:4406:3a0:50c::c",
-      "kavlan-21": "2001:660:4406:6a0:50c::c",
-      "kavlan-3": "2001:660:4406:582:c::c",
-      "kavlan-4": "2001:660:4406:590:c::c",
-      "kavlan-5": "2001:660:4406:591:c::c",
-      "kavlan-6": "2001:660:4406:592:c::c",
-      "kavlan-7": "2001:660:4406:593:c::c",
-      "kavlan-8": "2001:660:4406:594:c::c",
-      "kavlan-9": "2001:660:4406:595:c::c"
+      "kavlan-1": "2001:660:4406:580:c:0::c",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::c",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::c",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::c",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::c",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::c",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::c",
+      "kavlan-2": "2001:660:4406:581:c:0::c",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::c",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::c",
+      "kavlan-3": "2001:660:4406:582:c:0::c",
+      "kavlan-4": "2001:660:4406:590:c:0::c",
+      "kavlan-5": "2001:660:4406:591:c:0::c",
+      "kavlan-6": "2001:660:4406:592:c:0::c",
+      "kavlan-7": "2001:660:4406:593:c:0::c",
+      "kavlan-8": "2001:660:4406:594:c:0::c",
+      "kavlan-9": "2001:660:4406:595:c:0::c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.12",
-      "ip6": "2001:660:4406:500:c::c",
+      "ip6": "2001:660:4406:500:c:0::c",
       "kavlan": true,
       "mac": "84:8f:69:fd:2b:bf",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-13.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-13.json
index e9585406c53..c1915bef4ee 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-13.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::d",
-      "kavlan-11": "2001:660:4406:1a0:50c::d",
-      "kavlan-12": "2001:660:4406:2a0:50c::d",
-      "kavlan-13": "2001:660:4406:4a0:50c::d",
-      "kavlan-14": "2001:660:4406:5a0:50c::d",
-      "kavlan-16": "2001:660:4406:7a0:50c::d",
-      "kavlan-18": "2001:660:4406:8a0:50c::d",
-      "kavlan-2": "2001:660:4406:581:c::d",
-      "kavlan-20": "2001:660:4406:3a0:50c::d",
-      "kavlan-21": "2001:660:4406:6a0:50c::d",
-      "kavlan-3": "2001:660:4406:582:c::d",
-      "kavlan-4": "2001:660:4406:590:c::d",
-      "kavlan-5": "2001:660:4406:591:c::d",
-      "kavlan-6": "2001:660:4406:592:c::d",
-      "kavlan-7": "2001:660:4406:593:c::d",
-      "kavlan-8": "2001:660:4406:594:c::d",
-      "kavlan-9": "2001:660:4406:595:c::d"
+      "kavlan-1": "2001:660:4406:580:c:0::d",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::d",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::d",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::d",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::d",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::d",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::d",
+      "kavlan-2": "2001:660:4406:581:c:0::d",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::d",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::d",
+      "kavlan-3": "2001:660:4406:582:c:0::d",
+      "kavlan-4": "2001:660:4406:590:c:0::d",
+      "kavlan-5": "2001:660:4406:591:c:0::d",
+      "kavlan-6": "2001:660:4406:592:c:0::d",
+      "kavlan-7": "2001:660:4406:593:c:0::d",
+      "kavlan-8": "2001:660:4406:594:c:0::d",
+      "kavlan-9": "2001:660:4406:595:c:0::d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.13",
-      "ip6": "2001:660:4406:500:c::d",
+      "ip6": "2001:660:4406:500:c:0::d",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:a6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-14.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-14.json
index 924b47ec5b9..68d9ec9ea25 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-14.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::e",
-      "kavlan-11": "2001:660:4406:1a0:50c::e",
-      "kavlan-12": "2001:660:4406:2a0:50c::e",
-      "kavlan-13": "2001:660:4406:4a0:50c::e",
-      "kavlan-14": "2001:660:4406:5a0:50c::e",
-      "kavlan-16": "2001:660:4406:7a0:50c::e",
-      "kavlan-18": "2001:660:4406:8a0:50c::e",
-      "kavlan-2": "2001:660:4406:581:c::e",
-      "kavlan-20": "2001:660:4406:3a0:50c::e",
-      "kavlan-21": "2001:660:4406:6a0:50c::e",
-      "kavlan-3": "2001:660:4406:582:c::e",
-      "kavlan-4": "2001:660:4406:590:c::e",
-      "kavlan-5": "2001:660:4406:591:c::e",
-      "kavlan-6": "2001:660:4406:592:c::e",
-      "kavlan-7": "2001:660:4406:593:c::e",
-      "kavlan-8": "2001:660:4406:594:c::e",
-      "kavlan-9": "2001:660:4406:595:c::e"
+      "kavlan-1": "2001:660:4406:580:c:0::e",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::e",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::e",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::e",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::e",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::e",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::e",
+      "kavlan-2": "2001:660:4406:581:c:0::e",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::e",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::e",
+      "kavlan-3": "2001:660:4406:582:c:0::e",
+      "kavlan-4": "2001:660:4406:590:c:0::e",
+      "kavlan-5": "2001:660:4406:591:c:0::e",
+      "kavlan-6": "2001:660:4406:592:c:0::e",
+      "kavlan-7": "2001:660:4406:593:c:0::e",
+      "kavlan-8": "2001:660:4406:594:c:0::e",
+      "kavlan-9": "2001:660:4406:595:c:0::e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.14",
-      "ip6": "2001:660:4406:500:c::e",
+      "ip6": "2001:660:4406:500:c:0::e",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:ca",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-15.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-15.json
index 8c128d25e3a..508dd94f294 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-15.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::f",
-      "kavlan-11": "2001:660:4406:1a0:50c::f",
-      "kavlan-12": "2001:660:4406:2a0:50c::f",
-      "kavlan-13": "2001:660:4406:4a0:50c::f",
-      "kavlan-14": "2001:660:4406:5a0:50c::f",
-      "kavlan-16": "2001:660:4406:7a0:50c::f",
-      "kavlan-18": "2001:660:4406:8a0:50c::f",
-      "kavlan-2": "2001:660:4406:581:c::f",
-      "kavlan-20": "2001:660:4406:3a0:50c::f",
-      "kavlan-21": "2001:660:4406:6a0:50c::f",
-      "kavlan-3": "2001:660:4406:582:c::f",
-      "kavlan-4": "2001:660:4406:590:c::f",
-      "kavlan-5": "2001:660:4406:591:c::f",
-      "kavlan-6": "2001:660:4406:592:c::f",
-      "kavlan-7": "2001:660:4406:593:c::f",
-      "kavlan-8": "2001:660:4406:594:c::f",
-      "kavlan-9": "2001:660:4406:595:c::f"
+      "kavlan-1": "2001:660:4406:580:c:0::f",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::f",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::f",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::f",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::f",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::f",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::f",
+      "kavlan-2": "2001:660:4406:581:c:0::f",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::f",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::f",
+      "kavlan-3": "2001:660:4406:582:c:0::f",
+      "kavlan-4": "2001:660:4406:590:c:0::f",
+      "kavlan-5": "2001:660:4406:591:c:0::f",
+      "kavlan-6": "2001:660:4406:592:c:0::f",
+      "kavlan-7": "2001:660:4406:593:c:0::f",
+      "kavlan-8": "2001:660:4406:594:c:0::f",
+      "kavlan-9": "2001:660:4406:595:c:0::f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.15",
-      "ip6": "2001:660:4406:500:c::f",
+      "ip6": "2001:660:4406:500:c:0::f",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:af",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-16.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-16.json
index 3925b0c8930..8b574872e0f 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-16.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::10",
-      "kavlan-11": "2001:660:4406:1a0:50c::10",
-      "kavlan-12": "2001:660:4406:2a0:50c::10",
-      "kavlan-13": "2001:660:4406:4a0:50c::10",
-      "kavlan-14": "2001:660:4406:5a0:50c::10",
-      "kavlan-16": "2001:660:4406:7a0:50c::10",
-      "kavlan-18": "2001:660:4406:8a0:50c::10",
-      "kavlan-2": "2001:660:4406:581:c::10",
-      "kavlan-20": "2001:660:4406:3a0:50c::10",
-      "kavlan-21": "2001:660:4406:6a0:50c::10",
-      "kavlan-3": "2001:660:4406:582:c::10",
-      "kavlan-4": "2001:660:4406:590:c::10",
-      "kavlan-5": "2001:660:4406:591:c::10",
-      "kavlan-6": "2001:660:4406:592:c::10",
-      "kavlan-7": "2001:660:4406:593:c::10",
-      "kavlan-8": "2001:660:4406:594:c::10",
-      "kavlan-9": "2001:660:4406:595:c::10"
+      "kavlan-1": "2001:660:4406:580:c:0::10",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::10",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::10",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::10",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::10",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::10",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::10",
+      "kavlan-2": "2001:660:4406:581:c:0::10",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::10",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::10",
+      "kavlan-3": "2001:660:4406:582:c:0::10",
+      "kavlan-4": "2001:660:4406:590:c:0::10",
+      "kavlan-5": "2001:660:4406:591:c:0::10",
+      "kavlan-6": "2001:660:4406:592:c:0::10",
+      "kavlan-7": "2001:660:4406:593:c:0::10",
+      "kavlan-8": "2001:660:4406:594:c:0::10",
+      "kavlan-9": "2001:660:4406:595:c:0::10"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.16",
-      "ip6": "2001:660:4406:500:c::10",
+      "ip6": "2001:660:4406:500:c:0::10",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:2d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-17.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-17.json
index 5b56dac4e6e..da4ac679056 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-17.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::11",
-      "kavlan-11": "2001:660:4406:1a0:50c::11",
-      "kavlan-12": "2001:660:4406:2a0:50c::11",
-      "kavlan-13": "2001:660:4406:4a0:50c::11",
-      "kavlan-14": "2001:660:4406:5a0:50c::11",
-      "kavlan-16": "2001:660:4406:7a0:50c::11",
-      "kavlan-18": "2001:660:4406:8a0:50c::11",
-      "kavlan-2": "2001:660:4406:581:c::11",
-      "kavlan-20": "2001:660:4406:3a0:50c::11",
-      "kavlan-21": "2001:660:4406:6a0:50c::11",
-      "kavlan-3": "2001:660:4406:582:c::11",
-      "kavlan-4": "2001:660:4406:590:c::11",
-      "kavlan-5": "2001:660:4406:591:c::11",
-      "kavlan-6": "2001:660:4406:592:c::11",
-      "kavlan-7": "2001:660:4406:593:c::11",
-      "kavlan-8": "2001:660:4406:594:c::11",
-      "kavlan-9": "2001:660:4406:595:c::11"
+      "kavlan-1": "2001:660:4406:580:c:0::11",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::11",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::11",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::11",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::11",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::11",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::11",
+      "kavlan-2": "2001:660:4406:581:c:0::11",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::11",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::11",
+      "kavlan-3": "2001:660:4406:582:c:0::11",
+      "kavlan-4": "2001:660:4406:590:c:0::11",
+      "kavlan-5": "2001:660:4406:591:c:0::11",
+      "kavlan-6": "2001:660:4406:592:c:0::11",
+      "kavlan-7": "2001:660:4406:593:c:0::11",
+      "kavlan-8": "2001:660:4406:594:c:0::11",
+      "kavlan-9": "2001:660:4406:595:c:0::11"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.17",
-      "ip6": "2001:660:4406:500:c::11",
+      "ip6": "2001:660:4406:500:c:0::11",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:59",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-18.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-18.json
index 1ef3b0f643f..1255d227ed6 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-18.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::12",
-      "kavlan-11": "2001:660:4406:1a0:50c::12",
-      "kavlan-12": "2001:660:4406:2a0:50c::12",
-      "kavlan-13": "2001:660:4406:4a0:50c::12",
-      "kavlan-14": "2001:660:4406:5a0:50c::12",
-      "kavlan-16": "2001:660:4406:7a0:50c::12",
-      "kavlan-18": "2001:660:4406:8a0:50c::12",
-      "kavlan-2": "2001:660:4406:581:c::12",
-      "kavlan-20": "2001:660:4406:3a0:50c::12",
-      "kavlan-21": "2001:660:4406:6a0:50c::12",
-      "kavlan-3": "2001:660:4406:582:c::12",
-      "kavlan-4": "2001:660:4406:590:c::12",
-      "kavlan-5": "2001:660:4406:591:c::12",
-      "kavlan-6": "2001:660:4406:592:c::12",
-      "kavlan-7": "2001:660:4406:593:c::12",
-      "kavlan-8": "2001:660:4406:594:c::12",
-      "kavlan-9": "2001:660:4406:595:c::12"
+      "kavlan-1": "2001:660:4406:580:c:0::12",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::12",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::12",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::12",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::12",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::12",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::12",
+      "kavlan-2": "2001:660:4406:581:c:0::12",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::12",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::12",
+      "kavlan-3": "2001:660:4406:582:c:0::12",
+      "kavlan-4": "2001:660:4406:590:c:0::12",
+      "kavlan-5": "2001:660:4406:591:c:0::12",
+      "kavlan-6": "2001:660:4406:592:c:0::12",
+      "kavlan-7": "2001:660:4406:593:c:0::12",
+      "kavlan-8": "2001:660:4406:594:c:0::12",
+      "kavlan-9": "2001:660:4406:595:c:0::12"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.18",
-      "ip6": "2001:660:4406:500:c::12",
+      "ip6": "2001:660:4406:500:c:0::12",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:06",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-19.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-19.json
index 870a5fb8105..fc234d85073 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-19.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::13",
-      "kavlan-11": "2001:660:4406:1a0:50c::13",
-      "kavlan-12": "2001:660:4406:2a0:50c::13",
-      "kavlan-13": "2001:660:4406:4a0:50c::13",
-      "kavlan-14": "2001:660:4406:5a0:50c::13",
-      "kavlan-16": "2001:660:4406:7a0:50c::13",
-      "kavlan-18": "2001:660:4406:8a0:50c::13",
-      "kavlan-2": "2001:660:4406:581:c::13",
-      "kavlan-20": "2001:660:4406:3a0:50c::13",
-      "kavlan-21": "2001:660:4406:6a0:50c::13",
-      "kavlan-3": "2001:660:4406:582:c::13",
-      "kavlan-4": "2001:660:4406:590:c::13",
-      "kavlan-5": "2001:660:4406:591:c::13",
-      "kavlan-6": "2001:660:4406:592:c::13",
-      "kavlan-7": "2001:660:4406:593:c::13",
-      "kavlan-8": "2001:660:4406:594:c::13",
-      "kavlan-9": "2001:660:4406:595:c::13"
+      "kavlan-1": "2001:660:4406:580:c:0::13",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::13",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::13",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::13",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::13",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::13",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::13",
+      "kavlan-2": "2001:660:4406:581:c:0::13",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::13",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::13",
+      "kavlan-3": "2001:660:4406:582:c:0::13",
+      "kavlan-4": "2001:660:4406:590:c:0::13",
+      "kavlan-5": "2001:660:4406:591:c:0::13",
+      "kavlan-6": "2001:660:4406:592:c:0::13",
+      "kavlan-7": "2001:660:4406:593:c:0::13",
+      "kavlan-8": "2001:660:4406:594:c:0::13",
+      "kavlan-9": "2001:660:4406:595:c:0::13"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.19",
-      "ip6": "2001:660:4406:500:c::13",
+      "ip6": "2001:660:4406:500:c:0::13",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:e9",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-2.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-2.json
index 51032389ca8..d95b91ed6c6 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-2.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::2",
-      "kavlan-11": "2001:660:4406:1a0:50c::2",
-      "kavlan-12": "2001:660:4406:2a0:50c::2",
-      "kavlan-13": "2001:660:4406:4a0:50c::2",
-      "kavlan-14": "2001:660:4406:5a0:50c::2",
-      "kavlan-16": "2001:660:4406:7a0:50c::2",
-      "kavlan-18": "2001:660:4406:8a0:50c::2",
-      "kavlan-2": "2001:660:4406:581:c::2",
-      "kavlan-20": "2001:660:4406:3a0:50c::2",
-      "kavlan-21": "2001:660:4406:6a0:50c::2",
-      "kavlan-3": "2001:660:4406:582:c::2",
-      "kavlan-4": "2001:660:4406:590:c::2",
-      "kavlan-5": "2001:660:4406:591:c::2",
-      "kavlan-6": "2001:660:4406:592:c::2",
-      "kavlan-7": "2001:660:4406:593:c::2",
-      "kavlan-8": "2001:660:4406:594:c::2",
-      "kavlan-9": "2001:660:4406:595:c::2"
+      "kavlan-1": "2001:660:4406:580:c:0::2",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::2",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::2",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::2",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::2",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::2",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::2",
+      "kavlan-2": "2001:660:4406:581:c:0::2",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::2",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::2",
+      "kavlan-3": "2001:660:4406:582:c:0::2",
+      "kavlan-4": "2001:660:4406:590:c:0::2",
+      "kavlan-5": "2001:660:4406:591:c:0::2",
+      "kavlan-6": "2001:660:4406:592:c:0::2",
+      "kavlan-7": "2001:660:4406:593:c:0::2",
+      "kavlan-8": "2001:660:4406:594:c:0::2",
+      "kavlan-9": "2001:660:4406:595:c:0::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.2",
-      "ip6": "2001:660:4406:500:c::2",
+      "ip6": "2001:660:4406:500:c:0::2",
       "kavlan": true,
       "mac": "84:8f:69:fd:12:6e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-20.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-20.json
index 96c0af08888..70cd22a93b7 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-20.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::14",
-      "kavlan-11": "2001:660:4406:1a0:50c::14",
-      "kavlan-12": "2001:660:4406:2a0:50c::14",
-      "kavlan-13": "2001:660:4406:4a0:50c::14",
-      "kavlan-14": "2001:660:4406:5a0:50c::14",
-      "kavlan-16": "2001:660:4406:7a0:50c::14",
-      "kavlan-18": "2001:660:4406:8a0:50c::14",
-      "kavlan-2": "2001:660:4406:581:c::14",
-      "kavlan-20": "2001:660:4406:3a0:50c::14",
-      "kavlan-21": "2001:660:4406:6a0:50c::14",
-      "kavlan-3": "2001:660:4406:582:c::14",
-      "kavlan-4": "2001:660:4406:590:c::14",
-      "kavlan-5": "2001:660:4406:591:c::14",
-      "kavlan-6": "2001:660:4406:592:c::14",
-      "kavlan-7": "2001:660:4406:593:c::14",
-      "kavlan-8": "2001:660:4406:594:c::14",
-      "kavlan-9": "2001:660:4406:595:c::14"
+      "kavlan-1": "2001:660:4406:580:c:0::14",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::14",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::14",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::14",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::14",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::14",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::14",
+      "kavlan-2": "2001:660:4406:581:c:0::14",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::14",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::14",
+      "kavlan-3": "2001:660:4406:582:c:0::14",
+      "kavlan-4": "2001:660:4406:590:c:0::14",
+      "kavlan-5": "2001:660:4406:591:c:0::14",
+      "kavlan-6": "2001:660:4406:592:c:0::14",
+      "kavlan-7": "2001:660:4406:593:c:0::14",
+      "kavlan-8": "2001:660:4406:594:c:0::14",
+      "kavlan-9": "2001:660:4406:595:c:0::14"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.20",
-      "ip6": "2001:660:4406:500:c::14",
+      "ip6": "2001:660:4406:500:c:0::14",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:fe",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-21.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-21.json
index a7f1add4043..610b57d9df7 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-21.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::15",
-      "kavlan-11": "2001:660:4406:1a0:50c::15",
-      "kavlan-12": "2001:660:4406:2a0:50c::15",
-      "kavlan-13": "2001:660:4406:4a0:50c::15",
-      "kavlan-14": "2001:660:4406:5a0:50c::15",
-      "kavlan-16": "2001:660:4406:7a0:50c::15",
-      "kavlan-18": "2001:660:4406:8a0:50c::15",
-      "kavlan-2": "2001:660:4406:581:c::15",
-      "kavlan-20": "2001:660:4406:3a0:50c::15",
-      "kavlan-21": "2001:660:4406:6a0:50c::15",
-      "kavlan-3": "2001:660:4406:582:c::15",
-      "kavlan-4": "2001:660:4406:590:c::15",
-      "kavlan-5": "2001:660:4406:591:c::15",
-      "kavlan-6": "2001:660:4406:592:c::15",
-      "kavlan-7": "2001:660:4406:593:c::15",
-      "kavlan-8": "2001:660:4406:594:c::15",
-      "kavlan-9": "2001:660:4406:595:c::15"
+      "kavlan-1": "2001:660:4406:580:c:0::15",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::15",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::15",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::15",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::15",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::15",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::15",
+      "kavlan-2": "2001:660:4406:581:c:0::15",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::15",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::15",
+      "kavlan-3": "2001:660:4406:582:c:0::15",
+      "kavlan-4": "2001:660:4406:590:c:0::15",
+      "kavlan-5": "2001:660:4406:591:c:0::15",
+      "kavlan-6": "2001:660:4406:592:c:0::15",
+      "kavlan-7": "2001:660:4406:593:c:0::15",
+      "kavlan-8": "2001:660:4406:594:c:0::15",
+      "kavlan-9": "2001:660:4406:595:c:0::15"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.21",
-      "ip6": "2001:660:4406:500:c::15",
+      "ip6": "2001:660:4406:500:c:0::15",
       "kavlan": true,
       "mac": "18:03:73:ff:cc:71",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-22.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-22.json
index ca83ccd7f62..f62a7539366 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-22.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::16",
-      "kavlan-11": "2001:660:4406:1a0:50c::16",
-      "kavlan-12": "2001:660:4406:2a0:50c::16",
-      "kavlan-13": "2001:660:4406:4a0:50c::16",
-      "kavlan-14": "2001:660:4406:5a0:50c::16",
-      "kavlan-16": "2001:660:4406:7a0:50c::16",
-      "kavlan-18": "2001:660:4406:8a0:50c::16",
-      "kavlan-2": "2001:660:4406:581:c::16",
-      "kavlan-20": "2001:660:4406:3a0:50c::16",
-      "kavlan-21": "2001:660:4406:6a0:50c::16",
-      "kavlan-3": "2001:660:4406:582:c::16",
-      "kavlan-4": "2001:660:4406:590:c::16",
-      "kavlan-5": "2001:660:4406:591:c::16",
-      "kavlan-6": "2001:660:4406:592:c::16",
-      "kavlan-7": "2001:660:4406:593:c::16",
-      "kavlan-8": "2001:660:4406:594:c::16",
-      "kavlan-9": "2001:660:4406:595:c::16"
+      "kavlan-1": "2001:660:4406:580:c:0::16",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::16",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::16",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::16",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::16",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::16",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::16",
+      "kavlan-2": "2001:660:4406:581:c:0::16",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::16",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::16",
+      "kavlan-3": "2001:660:4406:582:c:0::16",
+      "kavlan-4": "2001:660:4406:590:c:0::16",
+      "kavlan-5": "2001:660:4406:591:c:0::16",
+      "kavlan-6": "2001:660:4406:592:c:0::16",
+      "kavlan-7": "2001:660:4406:593:c:0::16",
+      "kavlan-8": "2001:660:4406:594:c:0::16",
+      "kavlan-9": "2001:660:4406:595:c:0::16"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.22",
-      "ip6": "2001:660:4406:500:c::16",
+      "ip6": "2001:660:4406:500:c:0::16",
       "kavlan": true,
       "mac": "18:03:73:ff:ca:bb",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-23.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-23.json
index 489e337f53f..8fe092f5cb1 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-23.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::17",
-      "kavlan-11": "2001:660:4406:1a0:50c::17",
-      "kavlan-12": "2001:660:4406:2a0:50c::17",
-      "kavlan-13": "2001:660:4406:4a0:50c::17",
-      "kavlan-14": "2001:660:4406:5a0:50c::17",
-      "kavlan-16": "2001:660:4406:7a0:50c::17",
-      "kavlan-18": "2001:660:4406:8a0:50c::17",
-      "kavlan-2": "2001:660:4406:581:c::17",
-      "kavlan-20": "2001:660:4406:3a0:50c::17",
-      "kavlan-21": "2001:660:4406:6a0:50c::17",
-      "kavlan-3": "2001:660:4406:582:c::17",
-      "kavlan-4": "2001:660:4406:590:c::17",
-      "kavlan-5": "2001:660:4406:591:c::17",
-      "kavlan-6": "2001:660:4406:592:c::17",
-      "kavlan-7": "2001:660:4406:593:c::17",
-      "kavlan-8": "2001:660:4406:594:c::17",
-      "kavlan-9": "2001:660:4406:595:c::17"
+      "kavlan-1": "2001:660:4406:580:c:0::17",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::17",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::17",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::17",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::17",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::17",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::17",
+      "kavlan-2": "2001:660:4406:581:c:0::17",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::17",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::17",
+      "kavlan-3": "2001:660:4406:582:c:0::17",
+      "kavlan-4": "2001:660:4406:590:c:0::17",
+      "kavlan-5": "2001:660:4406:591:c:0::17",
+      "kavlan-6": "2001:660:4406:592:c:0::17",
+      "kavlan-7": "2001:660:4406:593:c:0::17",
+      "kavlan-8": "2001:660:4406:594:c:0::17",
+      "kavlan-9": "2001:660:4406:595:c:0::17"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.23",
-      "ip6": "2001:660:4406:500:c::17",
+      "ip6": "2001:660:4406:500:c:0::17",
       "kavlan": true,
       "mac": "84:8f:69:fd:0b:6c",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-24.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-24.json
index 1f22e8204c7..37af9ea92a9 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-24.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::18",
-      "kavlan-11": "2001:660:4406:1a0:50c::18",
-      "kavlan-12": "2001:660:4406:2a0:50c::18",
-      "kavlan-13": "2001:660:4406:4a0:50c::18",
-      "kavlan-14": "2001:660:4406:5a0:50c::18",
-      "kavlan-16": "2001:660:4406:7a0:50c::18",
-      "kavlan-18": "2001:660:4406:8a0:50c::18",
-      "kavlan-2": "2001:660:4406:581:c::18",
-      "kavlan-20": "2001:660:4406:3a0:50c::18",
-      "kavlan-21": "2001:660:4406:6a0:50c::18",
-      "kavlan-3": "2001:660:4406:582:c::18",
-      "kavlan-4": "2001:660:4406:590:c::18",
-      "kavlan-5": "2001:660:4406:591:c::18",
-      "kavlan-6": "2001:660:4406:592:c::18",
-      "kavlan-7": "2001:660:4406:593:c::18",
-      "kavlan-8": "2001:660:4406:594:c::18",
-      "kavlan-9": "2001:660:4406:595:c::18"
+      "kavlan-1": "2001:660:4406:580:c:0::18",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::18",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::18",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::18",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::18",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::18",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::18",
+      "kavlan-2": "2001:660:4406:581:c:0::18",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::18",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::18",
+      "kavlan-3": "2001:660:4406:582:c:0::18",
+      "kavlan-4": "2001:660:4406:590:c:0::18",
+      "kavlan-5": "2001:660:4406:591:c:0::18",
+      "kavlan-6": "2001:660:4406:592:c:0::18",
+      "kavlan-7": "2001:660:4406:593:c:0::18",
+      "kavlan-8": "2001:660:4406:594:c:0::18",
+      "kavlan-9": "2001:660:4406:595:c:0::18"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.24",
-      "ip6": "2001:660:4406:500:c::18",
+      "ip6": "2001:660:4406:500:c:0::18",
       "kavlan": true,
       "mac": "84:8f:69:fd:25:65",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-25.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-25.json
index b722afc4fb4..eca1c32ce8d 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-25.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::19",
-      "kavlan-11": "2001:660:4406:1a0:50c::19",
-      "kavlan-12": "2001:660:4406:2a0:50c::19",
-      "kavlan-13": "2001:660:4406:4a0:50c::19",
-      "kavlan-14": "2001:660:4406:5a0:50c::19",
-      "kavlan-16": "2001:660:4406:7a0:50c::19",
-      "kavlan-18": "2001:660:4406:8a0:50c::19",
-      "kavlan-2": "2001:660:4406:581:c::19",
-      "kavlan-20": "2001:660:4406:3a0:50c::19",
-      "kavlan-21": "2001:660:4406:6a0:50c::19",
-      "kavlan-3": "2001:660:4406:582:c::19",
-      "kavlan-4": "2001:660:4406:590:c::19",
-      "kavlan-5": "2001:660:4406:591:c::19",
-      "kavlan-6": "2001:660:4406:592:c::19",
-      "kavlan-7": "2001:660:4406:593:c::19",
-      "kavlan-8": "2001:660:4406:594:c::19",
-      "kavlan-9": "2001:660:4406:595:c::19"
+      "kavlan-1": "2001:660:4406:580:c:0::19",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::19",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::19",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::19",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::19",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::19",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::19",
+      "kavlan-2": "2001:660:4406:581:c:0::19",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::19",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::19",
+      "kavlan-3": "2001:660:4406:582:c:0::19",
+      "kavlan-4": "2001:660:4406:590:c:0::19",
+      "kavlan-5": "2001:660:4406:591:c:0::19",
+      "kavlan-6": "2001:660:4406:592:c:0::19",
+      "kavlan-7": "2001:660:4406:593:c:0::19",
+      "kavlan-8": "2001:660:4406:594:c:0::19",
+      "kavlan-9": "2001:660:4406:595:c:0::19"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.25",
-      "ip6": "2001:660:4406:500:c::19",
+      "ip6": "2001:660:4406:500:c:0::19",
       "kavlan": true,
       "mac": "18:03:73:ff:c6:d4",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-26.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-26.json
index 25393900821..b85733718c5 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-26.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-26.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::1a",
-      "kavlan-11": "2001:660:4406:1a0:50c::1a",
-      "kavlan-12": "2001:660:4406:2a0:50c::1a",
-      "kavlan-13": "2001:660:4406:4a0:50c::1a",
-      "kavlan-14": "2001:660:4406:5a0:50c::1a",
-      "kavlan-16": "2001:660:4406:7a0:50c::1a",
-      "kavlan-18": "2001:660:4406:8a0:50c::1a",
-      "kavlan-2": "2001:660:4406:581:c::1a",
-      "kavlan-20": "2001:660:4406:3a0:50c::1a",
-      "kavlan-21": "2001:660:4406:6a0:50c::1a",
-      "kavlan-3": "2001:660:4406:582:c::1a",
-      "kavlan-4": "2001:660:4406:590:c::1a",
-      "kavlan-5": "2001:660:4406:591:c::1a",
-      "kavlan-6": "2001:660:4406:592:c::1a",
-      "kavlan-7": "2001:660:4406:593:c::1a",
-      "kavlan-8": "2001:660:4406:594:c::1a",
-      "kavlan-9": "2001:660:4406:595:c::1a"
+      "kavlan-1": "2001:660:4406:580:c:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::1a",
+      "kavlan-2": "2001:660:4406:581:c:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::1a",
+      "kavlan-3": "2001:660:4406:582:c:0::1a",
+      "kavlan-4": "2001:660:4406:590:c:0::1a",
+      "kavlan-5": "2001:660:4406:591:c:0::1a",
+      "kavlan-6": "2001:660:4406:592:c:0::1a",
+      "kavlan-7": "2001:660:4406:593:c:0::1a",
+      "kavlan-8": "2001:660:4406:594:c:0::1a",
+      "kavlan-9": "2001:660:4406:595:c:0::1a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.26",
-      "ip6": "2001:660:4406:500:c::1a",
+      "ip6": "2001:660:4406:500:c:0::1a",
       "kavlan": true,
       "mac": "84:8f:69:fd:0d:3d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-27.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-27.json
index a68b5934687..fdb59805feb 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-27.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::1b",
-      "kavlan-11": "2001:660:4406:1a0:50c::1b",
-      "kavlan-12": "2001:660:4406:2a0:50c::1b",
-      "kavlan-13": "2001:660:4406:4a0:50c::1b",
-      "kavlan-14": "2001:660:4406:5a0:50c::1b",
-      "kavlan-16": "2001:660:4406:7a0:50c::1b",
-      "kavlan-18": "2001:660:4406:8a0:50c::1b",
-      "kavlan-2": "2001:660:4406:581:c::1b",
-      "kavlan-20": "2001:660:4406:3a0:50c::1b",
-      "kavlan-21": "2001:660:4406:6a0:50c::1b",
-      "kavlan-3": "2001:660:4406:582:c::1b",
-      "kavlan-4": "2001:660:4406:590:c::1b",
-      "kavlan-5": "2001:660:4406:591:c::1b",
-      "kavlan-6": "2001:660:4406:592:c::1b",
-      "kavlan-7": "2001:660:4406:593:c::1b",
-      "kavlan-8": "2001:660:4406:594:c::1b",
-      "kavlan-9": "2001:660:4406:595:c::1b"
+      "kavlan-1": "2001:660:4406:580:c:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::1b",
+      "kavlan-2": "2001:660:4406:581:c:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::1b",
+      "kavlan-3": "2001:660:4406:582:c:0::1b",
+      "kavlan-4": "2001:660:4406:590:c:0::1b",
+      "kavlan-5": "2001:660:4406:591:c:0::1b",
+      "kavlan-6": "2001:660:4406:592:c:0::1b",
+      "kavlan-7": "2001:660:4406:593:c:0::1b",
+      "kavlan-8": "2001:660:4406:594:c:0::1b",
+      "kavlan-9": "2001:660:4406:595:c:0::1b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.27",
-      "ip6": "2001:660:4406:500:c::1b",
+      "ip6": "2001:660:4406:500:c:0::1b",
       "kavlan": true,
       "mac": "84:8f:69:fd:2c:d3",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-28.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-28.json
index 5c79c46a8e9..aba7db1305f 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-28.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::1c",
-      "kavlan-11": "2001:660:4406:1a0:50c::1c",
-      "kavlan-12": "2001:660:4406:2a0:50c::1c",
-      "kavlan-13": "2001:660:4406:4a0:50c::1c",
-      "kavlan-14": "2001:660:4406:5a0:50c::1c",
-      "kavlan-16": "2001:660:4406:7a0:50c::1c",
-      "kavlan-18": "2001:660:4406:8a0:50c::1c",
-      "kavlan-2": "2001:660:4406:581:c::1c",
-      "kavlan-20": "2001:660:4406:3a0:50c::1c",
-      "kavlan-21": "2001:660:4406:6a0:50c::1c",
-      "kavlan-3": "2001:660:4406:582:c::1c",
-      "kavlan-4": "2001:660:4406:590:c::1c",
-      "kavlan-5": "2001:660:4406:591:c::1c",
-      "kavlan-6": "2001:660:4406:592:c::1c",
-      "kavlan-7": "2001:660:4406:593:c::1c",
-      "kavlan-8": "2001:660:4406:594:c::1c",
-      "kavlan-9": "2001:660:4406:595:c::1c"
+      "kavlan-1": "2001:660:4406:580:c:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::1c",
+      "kavlan-2": "2001:660:4406:581:c:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::1c",
+      "kavlan-3": "2001:660:4406:582:c:0::1c",
+      "kavlan-4": "2001:660:4406:590:c:0::1c",
+      "kavlan-5": "2001:660:4406:591:c:0::1c",
+      "kavlan-6": "2001:660:4406:592:c:0::1c",
+      "kavlan-7": "2001:660:4406:593:c:0::1c",
+      "kavlan-8": "2001:660:4406:594:c:0::1c",
+      "kavlan-9": "2001:660:4406:595:c:0::1c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.28",
-      "ip6": "2001:660:4406:500:c::1c",
+      "ip6": "2001:660:4406:500:c:0::1c",
       "kavlan": true,
       "mac": "84:8f:69:fd:0f:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-29.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-29.json
index cf456123ead..ac3f078b976 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-29.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::1d",
-      "kavlan-11": "2001:660:4406:1a0:50c::1d",
-      "kavlan-12": "2001:660:4406:2a0:50c::1d",
-      "kavlan-13": "2001:660:4406:4a0:50c::1d",
-      "kavlan-14": "2001:660:4406:5a0:50c::1d",
-      "kavlan-16": "2001:660:4406:7a0:50c::1d",
-      "kavlan-18": "2001:660:4406:8a0:50c::1d",
-      "kavlan-2": "2001:660:4406:581:c::1d",
-      "kavlan-20": "2001:660:4406:3a0:50c::1d",
-      "kavlan-21": "2001:660:4406:6a0:50c::1d",
-      "kavlan-3": "2001:660:4406:582:c::1d",
-      "kavlan-4": "2001:660:4406:590:c::1d",
-      "kavlan-5": "2001:660:4406:591:c::1d",
-      "kavlan-6": "2001:660:4406:592:c::1d",
-      "kavlan-7": "2001:660:4406:593:c::1d",
-      "kavlan-8": "2001:660:4406:594:c::1d",
-      "kavlan-9": "2001:660:4406:595:c::1d"
+      "kavlan-1": "2001:660:4406:580:c:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::1d",
+      "kavlan-2": "2001:660:4406:581:c:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::1d",
+      "kavlan-3": "2001:660:4406:582:c:0::1d",
+      "kavlan-4": "2001:660:4406:590:c:0::1d",
+      "kavlan-5": "2001:660:4406:591:c:0::1d",
+      "kavlan-6": "2001:660:4406:592:c:0::1d",
+      "kavlan-7": "2001:660:4406:593:c:0::1d",
+      "kavlan-8": "2001:660:4406:594:c:0::1d",
+      "kavlan-9": "2001:660:4406:595:c:0::1d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.29",
-      "ip6": "2001:660:4406:500:c::1d",
+      "ip6": "2001:660:4406:500:c:0::1d",
       "kavlan": true,
       "mac": "84:8f:69:fd:2e:cb",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-3.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-3.json
index 31933b92463..5937eb842f9 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-3.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::3",
-      "kavlan-11": "2001:660:4406:1a0:50c::3",
-      "kavlan-12": "2001:660:4406:2a0:50c::3",
-      "kavlan-13": "2001:660:4406:4a0:50c::3",
-      "kavlan-14": "2001:660:4406:5a0:50c::3",
-      "kavlan-16": "2001:660:4406:7a0:50c::3",
-      "kavlan-18": "2001:660:4406:8a0:50c::3",
-      "kavlan-2": "2001:660:4406:581:c::3",
-      "kavlan-20": "2001:660:4406:3a0:50c::3",
-      "kavlan-21": "2001:660:4406:6a0:50c::3",
-      "kavlan-3": "2001:660:4406:582:c::3",
-      "kavlan-4": "2001:660:4406:590:c::3",
-      "kavlan-5": "2001:660:4406:591:c::3",
-      "kavlan-6": "2001:660:4406:592:c::3",
-      "kavlan-7": "2001:660:4406:593:c::3",
-      "kavlan-8": "2001:660:4406:594:c::3",
-      "kavlan-9": "2001:660:4406:595:c::3"
+      "kavlan-1": "2001:660:4406:580:c:0::3",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::3",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::3",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::3",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::3",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::3",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::3",
+      "kavlan-2": "2001:660:4406:581:c:0::3",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::3",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::3",
+      "kavlan-3": "2001:660:4406:582:c:0::3",
+      "kavlan-4": "2001:660:4406:590:c:0::3",
+      "kavlan-5": "2001:660:4406:591:c:0::3",
+      "kavlan-6": "2001:660:4406:592:c:0::3",
+      "kavlan-7": "2001:660:4406:593:c:0::3",
+      "kavlan-8": "2001:660:4406:594:c:0::3",
+      "kavlan-9": "2001:660:4406:595:c:0::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.3",
-      "ip6": "2001:660:4406:500:c::3",
+      "ip6": "2001:660:4406:500:c:0::3",
       "kavlan": true,
       "mac": "84:8f:69:fd:12:7a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-30.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-30.json
index 279a9efa3a9..e7930e61cb5 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-30.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::1e",
-      "kavlan-11": "2001:660:4406:1a0:50c::1e",
-      "kavlan-12": "2001:660:4406:2a0:50c::1e",
-      "kavlan-13": "2001:660:4406:4a0:50c::1e",
-      "kavlan-14": "2001:660:4406:5a0:50c::1e",
-      "kavlan-16": "2001:660:4406:7a0:50c::1e",
-      "kavlan-18": "2001:660:4406:8a0:50c::1e",
-      "kavlan-2": "2001:660:4406:581:c::1e",
-      "kavlan-20": "2001:660:4406:3a0:50c::1e",
-      "kavlan-21": "2001:660:4406:6a0:50c::1e",
-      "kavlan-3": "2001:660:4406:582:c::1e",
-      "kavlan-4": "2001:660:4406:590:c::1e",
-      "kavlan-5": "2001:660:4406:591:c::1e",
-      "kavlan-6": "2001:660:4406:592:c::1e",
-      "kavlan-7": "2001:660:4406:593:c::1e",
-      "kavlan-8": "2001:660:4406:594:c::1e",
-      "kavlan-9": "2001:660:4406:595:c::1e"
+      "kavlan-1": "2001:660:4406:580:c:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::1e",
+      "kavlan-2": "2001:660:4406:581:c:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::1e",
+      "kavlan-3": "2001:660:4406:582:c:0::1e",
+      "kavlan-4": "2001:660:4406:590:c:0::1e",
+      "kavlan-5": "2001:660:4406:591:c:0::1e",
+      "kavlan-6": "2001:660:4406:592:c:0::1e",
+      "kavlan-7": "2001:660:4406:593:c:0::1e",
+      "kavlan-8": "2001:660:4406:594:c:0::1e",
+      "kavlan-9": "2001:660:4406:595:c:0::1e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.30",
-      "ip6": "2001:660:4406:500:c::1e",
+      "ip6": "2001:660:4406:500:c:0::1e",
       "kavlan": true,
       "mac": "84:8f:69:fd:2b:f5",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-31.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-31.json
index d62a66457b8..d16d87abd94 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-31.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::1f",
-      "kavlan-11": "2001:660:4406:1a0:50c::1f",
-      "kavlan-12": "2001:660:4406:2a0:50c::1f",
-      "kavlan-13": "2001:660:4406:4a0:50c::1f",
-      "kavlan-14": "2001:660:4406:5a0:50c::1f",
-      "kavlan-16": "2001:660:4406:7a0:50c::1f",
-      "kavlan-18": "2001:660:4406:8a0:50c::1f",
-      "kavlan-2": "2001:660:4406:581:c::1f",
-      "kavlan-20": "2001:660:4406:3a0:50c::1f",
-      "kavlan-21": "2001:660:4406:6a0:50c::1f",
-      "kavlan-3": "2001:660:4406:582:c::1f",
-      "kavlan-4": "2001:660:4406:590:c::1f",
-      "kavlan-5": "2001:660:4406:591:c::1f",
-      "kavlan-6": "2001:660:4406:592:c::1f",
-      "kavlan-7": "2001:660:4406:593:c::1f",
-      "kavlan-8": "2001:660:4406:594:c::1f",
-      "kavlan-9": "2001:660:4406:595:c::1f"
+      "kavlan-1": "2001:660:4406:580:c:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::1f",
+      "kavlan-2": "2001:660:4406:581:c:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::1f",
+      "kavlan-3": "2001:660:4406:582:c:0::1f",
+      "kavlan-4": "2001:660:4406:590:c:0::1f",
+      "kavlan-5": "2001:660:4406:591:c:0::1f",
+      "kavlan-6": "2001:660:4406:592:c:0::1f",
+      "kavlan-7": "2001:660:4406:593:c:0::1f",
+      "kavlan-8": "2001:660:4406:594:c:0::1f",
+      "kavlan-9": "2001:660:4406:595:c:0::1f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.31",
-      "ip6": "2001:660:4406:500:c::1f",
+      "ip6": "2001:660:4406:500:c:0::1f",
       "kavlan": true,
       "mac": "84:8f:69:fd:27:2d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-32.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-32.json
index d91ee0f0605..aa721db5eb8 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-32.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::20",
-      "kavlan-11": "2001:660:4406:1a0:50c::20",
-      "kavlan-12": "2001:660:4406:2a0:50c::20",
-      "kavlan-13": "2001:660:4406:4a0:50c::20",
-      "kavlan-14": "2001:660:4406:5a0:50c::20",
-      "kavlan-16": "2001:660:4406:7a0:50c::20",
-      "kavlan-18": "2001:660:4406:8a0:50c::20",
-      "kavlan-2": "2001:660:4406:581:c::20",
-      "kavlan-20": "2001:660:4406:3a0:50c::20",
-      "kavlan-21": "2001:660:4406:6a0:50c::20",
-      "kavlan-3": "2001:660:4406:582:c::20",
-      "kavlan-4": "2001:660:4406:590:c::20",
-      "kavlan-5": "2001:660:4406:591:c::20",
-      "kavlan-6": "2001:660:4406:592:c::20",
-      "kavlan-7": "2001:660:4406:593:c::20",
-      "kavlan-8": "2001:660:4406:594:c::20",
-      "kavlan-9": "2001:660:4406:595:c::20"
+      "kavlan-1": "2001:660:4406:580:c:0::20",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::20",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::20",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::20",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::20",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::20",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::20",
+      "kavlan-2": "2001:660:4406:581:c:0::20",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::20",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::20",
+      "kavlan-3": "2001:660:4406:582:c:0::20",
+      "kavlan-4": "2001:660:4406:590:c:0::20",
+      "kavlan-5": "2001:660:4406:591:c:0::20",
+      "kavlan-6": "2001:660:4406:592:c:0::20",
+      "kavlan-7": "2001:660:4406:593:c:0::20",
+      "kavlan-8": "2001:660:4406:594:c:0::20",
+      "kavlan-9": "2001:660:4406:595:c:0::20"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.32",
-      "ip6": "2001:660:4406:500:c::20",
+      "ip6": "2001:660:4406:500:c:0::20",
       "kavlan": true,
       "mac": "18:03:73:ff:c6:86",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-33.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-33.json
index f870cf10095..028e40164f1 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-33.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-33.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::21",
-      "kavlan-11": "2001:660:4406:1a0:50c::21",
-      "kavlan-12": "2001:660:4406:2a0:50c::21",
-      "kavlan-13": "2001:660:4406:4a0:50c::21",
-      "kavlan-14": "2001:660:4406:5a0:50c::21",
-      "kavlan-16": "2001:660:4406:7a0:50c::21",
-      "kavlan-18": "2001:660:4406:8a0:50c::21",
-      "kavlan-2": "2001:660:4406:581:c::21",
-      "kavlan-20": "2001:660:4406:3a0:50c::21",
-      "kavlan-21": "2001:660:4406:6a0:50c::21",
-      "kavlan-3": "2001:660:4406:582:c::21",
-      "kavlan-4": "2001:660:4406:590:c::21",
-      "kavlan-5": "2001:660:4406:591:c::21",
-      "kavlan-6": "2001:660:4406:592:c::21",
-      "kavlan-7": "2001:660:4406:593:c::21",
-      "kavlan-8": "2001:660:4406:594:c::21",
-      "kavlan-9": "2001:660:4406:595:c::21"
+      "kavlan-1": "2001:660:4406:580:c:0::21",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::21",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::21",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::21",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::21",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::21",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::21",
+      "kavlan-2": "2001:660:4406:581:c:0::21",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::21",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::21",
+      "kavlan-3": "2001:660:4406:582:c:0::21",
+      "kavlan-4": "2001:660:4406:590:c:0::21",
+      "kavlan-5": "2001:660:4406:591:c:0::21",
+      "kavlan-6": "2001:660:4406:592:c:0::21",
+      "kavlan-7": "2001:660:4406:593:c:0::21",
+      "kavlan-8": "2001:660:4406:594:c:0::21",
+      "kavlan-9": "2001:660:4406:595:c:0::21"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.33",
-      "ip6": "2001:660:4406:500:c::21",
+      "ip6": "2001:660:4406:500:c:0::21",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:21",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-34.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-34.json
index 82ea80a2670..f1e55b4ef12 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-34.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-34.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::22",
-      "kavlan-11": "2001:660:4406:1a0:50c::22",
-      "kavlan-12": "2001:660:4406:2a0:50c::22",
-      "kavlan-13": "2001:660:4406:4a0:50c::22",
-      "kavlan-14": "2001:660:4406:5a0:50c::22",
-      "kavlan-16": "2001:660:4406:7a0:50c::22",
-      "kavlan-18": "2001:660:4406:8a0:50c::22",
-      "kavlan-2": "2001:660:4406:581:c::22",
-      "kavlan-20": "2001:660:4406:3a0:50c::22",
-      "kavlan-21": "2001:660:4406:6a0:50c::22",
-      "kavlan-3": "2001:660:4406:582:c::22",
-      "kavlan-4": "2001:660:4406:590:c::22",
-      "kavlan-5": "2001:660:4406:591:c::22",
-      "kavlan-6": "2001:660:4406:592:c::22",
-      "kavlan-7": "2001:660:4406:593:c::22",
-      "kavlan-8": "2001:660:4406:594:c::22",
-      "kavlan-9": "2001:660:4406:595:c::22"
+      "kavlan-1": "2001:660:4406:580:c:0::22",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::22",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::22",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::22",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::22",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::22",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::22",
+      "kavlan-2": "2001:660:4406:581:c:0::22",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::22",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::22",
+      "kavlan-3": "2001:660:4406:582:c:0::22",
+      "kavlan-4": "2001:660:4406:590:c:0::22",
+      "kavlan-5": "2001:660:4406:591:c:0::22",
+      "kavlan-6": "2001:660:4406:592:c:0::22",
+      "kavlan-7": "2001:660:4406:593:c:0::22",
+      "kavlan-8": "2001:660:4406:594:c:0::22",
+      "kavlan-9": "2001:660:4406:595:c:0::22"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.34",
-      "ip6": "2001:660:4406:500:c::22",
+      "ip6": "2001:660:4406:500:c:0::22",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:dc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-35.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-35.json
index 01240083180..d1a57b9e630 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-35.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-35.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::23",
-      "kavlan-11": "2001:660:4406:1a0:50c::23",
-      "kavlan-12": "2001:660:4406:2a0:50c::23",
-      "kavlan-13": "2001:660:4406:4a0:50c::23",
-      "kavlan-14": "2001:660:4406:5a0:50c::23",
-      "kavlan-16": "2001:660:4406:7a0:50c::23",
-      "kavlan-18": "2001:660:4406:8a0:50c::23",
-      "kavlan-2": "2001:660:4406:581:c::23",
-      "kavlan-20": "2001:660:4406:3a0:50c::23",
-      "kavlan-21": "2001:660:4406:6a0:50c::23",
-      "kavlan-3": "2001:660:4406:582:c::23",
-      "kavlan-4": "2001:660:4406:590:c::23",
-      "kavlan-5": "2001:660:4406:591:c::23",
-      "kavlan-6": "2001:660:4406:592:c::23",
-      "kavlan-7": "2001:660:4406:593:c::23",
-      "kavlan-8": "2001:660:4406:594:c::23",
-      "kavlan-9": "2001:660:4406:595:c::23"
+      "kavlan-1": "2001:660:4406:580:c:0::23",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::23",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::23",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::23",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::23",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::23",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::23",
+      "kavlan-2": "2001:660:4406:581:c:0::23",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::23",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::23",
+      "kavlan-3": "2001:660:4406:582:c:0::23",
+      "kavlan-4": "2001:660:4406:590:c:0::23",
+      "kavlan-5": "2001:660:4406:591:c:0::23",
+      "kavlan-6": "2001:660:4406:592:c:0::23",
+      "kavlan-7": "2001:660:4406:593:c:0::23",
+      "kavlan-8": "2001:660:4406:594:c:0::23",
+      "kavlan-9": "2001:660:4406:595:c:0::23"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.35",
-      "ip6": "2001:660:4406:500:c::23",
+      "ip6": "2001:660:4406:500:c:0::23",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:be",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-36.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-36.json
index b11c785e8a5..56defcb36d8 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-36.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-36.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::24",
-      "kavlan-11": "2001:660:4406:1a0:50c::24",
-      "kavlan-12": "2001:660:4406:2a0:50c::24",
-      "kavlan-13": "2001:660:4406:4a0:50c::24",
-      "kavlan-14": "2001:660:4406:5a0:50c::24",
-      "kavlan-16": "2001:660:4406:7a0:50c::24",
-      "kavlan-18": "2001:660:4406:8a0:50c::24",
-      "kavlan-2": "2001:660:4406:581:c::24",
-      "kavlan-20": "2001:660:4406:3a0:50c::24",
-      "kavlan-21": "2001:660:4406:6a0:50c::24",
-      "kavlan-3": "2001:660:4406:582:c::24",
-      "kavlan-4": "2001:660:4406:590:c::24",
-      "kavlan-5": "2001:660:4406:591:c::24",
-      "kavlan-6": "2001:660:4406:592:c::24",
-      "kavlan-7": "2001:660:4406:593:c::24",
-      "kavlan-8": "2001:660:4406:594:c::24",
-      "kavlan-9": "2001:660:4406:595:c::24"
+      "kavlan-1": "2001:660:4406:580:c:0::24",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::24",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::24",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::24",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::24",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::24",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::24",
+      "kavlan-2": "2001:660:4406:581:c:0::24",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::24",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::24",
+      "kavlan-3": "2001:660:4406:582:c:0::24",
+      "kavlan-4": "2001:660:4406:590:c:0::24",
+      "kavlan-5": "2001:660:4406:591:c:0::24",
+      "kavlan-6": "2001:660:4406:592:c:0::24",
+      "kavlan-7": "2001:660:4406:593:c:0::24",
+      "kavlan-8": "2001:660:4406:594:c:0::24",
+      "kavlan-9": "2001:660:4406:595:c:0::24"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.36",
-      "ip6": "2001:660:4406:500:c::24",
+      "ip6": "2001:660:4406:500:c:0::24",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:6d",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-37.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-37.json
index 2d5988c170b..09bd92253f7 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-37.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-37.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::25",
-      "kavlan-11": "2001:660:4406:1a0:50c::25",
-      "kavlan-12": "2001:660:4406:2a0:50c::25",
-      "kavlan-13": "2001:660:4406:4a0:50c::25",
-      "kavlan-14": "2001:660:4406:5a0:50c::25",
-      "kavlan-16": "2001:660:4406:7a0:50c::25",
-      "kavlan-18": "2001:660:4406:8a0:50c::25",
-      "kavlan-2": "2001:660:4406:581:c::25",
-      "kavlan-20": "2001:660:4406:3a0:50c::25",
-      "kavlan-21": "2001:660:4406:6a0:50c::25",
-      "kavlan-3": "2001:660:4406:582:c::25",
-      "kavlan-4": "2001:660:4406:590:c::25",
-      "kavlan-5": "2001:660:4406:591:c::25",
-      "kavlan-6": "2001:660:4406:592:c::25",
-      "kavlan-7": "2001:660:4406:593:c::25",
-      "kavlan-8": "2001:660:4406:594:c::25",
-      "kavlan-9": "2001:660:4406:595:c::25"
+      "kavlan-1": "2001:660:4406:580:c:0::25",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::25",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::25",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::25",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::25",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::25",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::25",
+      "kavlan-2": "2001:660:4406:581:c:0::25",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::25",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::25",
+      "kavlan-3": "2001:660:4406:582:c:0::25",
+      "kavlan-4": "2001:660:4406:590:c:0::25",
+      "kavlan-5": "2001:660:4406:591:c:0::25",
+      "kavlan-6": "2001:660:4406:592:c:0::25",
+      "kavlan-7": "2001:660:4406:593:c:0::25",
+      "kavlan-8": "2001:660:4406:594:c:0::25",
+      "kavlan-9": "2001:660:4406:595:c:0::25"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.37",
-      "ip6": "2001:660:4406:500:c::25",
+      "ip6": "2001:660:4406:500:c:0::25",
       "kavlan": true,
       "mac": "84:8f:69:fd:3e:bd",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-38.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-38.json
index 7d652616b53..c29daef070e 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-38.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-38.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::26",
-      "kavlan-11": "2001:660:4406:1a0:50c::26",
-      "kavlan-12": "2001:660:4406:2a0:50c::26",
-      "kavlan-13": "2001:660:4406:4a0:50c::26",
-      "kavlan-14": "2001:660:4406:5a0:50c::26",
-      "kavlan-16": "2001:660:4406:7a0:50c::26",
-      "kavlan-18": "2001:660:4406:8a0:50c::26",
-      "kavlan-2": "2001:660:4406:581:c::26",
-      "kavlan-20": "2001:660:4406:3a0:50c::26",
-      "kavlan-21": "2001:660:4406:6a0:50c::26",
-      "kavlan-3": "2001:660:4406:582:c::26",
-      "kavlan-4": "2001:660:4406:590:c::26",
-      "kavlan-5": "2001:660:4406:591:c::26",
-      "kavlan-6": "2001:660:4406:592:c::26",
-      "kavlan-7": "2001:660:4406:593:c::26",
-      "kavlan-8": "2001:660:4406:594:c::26",
-      "kavlan-9": "2001:660:4406:595:c::26"
+      "kavlan-1": "2001:660:4406:580:c:0::26",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::26",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::26",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::26",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::26",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::26",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::26",
+      "kavlan-2": "2001:660:4406:581:c:0::26",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::26",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::26",
+      "kavlan-3": "2001:660:4406:582:c:0::26",
+      "kavlan-4": "2001:660:4406:590:c:0::26",
+      "kavlan-5": "2001:660:4406:591:c:0::26",
+      "kavlan-6": "2001:660:4406:592:c:0::26",
+      "kavlan-7": "2001:660:4406:593:c:0::26",
+      "kavlan-8": "2001:660:4406:594:c:0::26",
+      "kavlan-9": "2001:660:4406:595:c:0::26"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.38",
-      "ip6": "2001:660:4406:500:c::26",
+      "ip6": "2001:660:4406:500:c:0::26",
       "kavlan": true,
       "mac": "84:8f:69:fd:0b:15",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-39.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-39.json
index 1442697be44..8a97664907e 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-39.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-39.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::27",
-      "kavlan-11": "2001:660:4406:1a0:50c::27",
-      "kavlan-12": "2001:660:4406:2a0:50c::27",
-      "kavlan-13": "2001:660:4406:4a0:50c::27",
-      "kavlan-14": "2001:660:4406:5a0:50c::27",
-      "kavlan-16": "2001:660:4406:7a0:50c::27",
-      "kavlan-18": "2001:660:4406:8a0:50c::27",
-      "kavlan-2": "2001:660:4406:581:c::27",
-      "kavlan-20": "2001:660:4406:3a0:50c::27",
-      "kavlan-21": "2001:660:4406:6a0:50c::27",
-      "kavlan-3": "2001:660:4406:582:c::27",
-      "kavlan-4": "2001:660:4406:590:c::27",
-      "kavlan-5": "2001:660:4406:591:c::27",
-      "kavlan-6": "2001:660:4406:592:c::27",
-      "kavlan-7": "2001:660:4406:593:c::27",
-      "kavlan-8": "2001:660:4406:594:c::27",
-      "kavlan-9": "2001:660:4406:595:c::27"
+      "kavlan-1": "2001:660:4406:580:c:0::27",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::27",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::27",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::27",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::27",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::27",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::27",
+      "kavlan-2": "2001:660:4406:581:c:0::27",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::27",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::27",
+      "kavlan-3": "2001:660:4406:582:c:0::27",
+      "kavlan-4": "2001:660:4406:590:c:0::27",
+      "kavlan-5": "2001:660:4406:591:c:0::27",
+      "kavlan-6": "2001:660:4406:592:c:0::27",
+      "kavlan-7": "2001:660:4406:593:c:0::27",
+      "kavlan-8": "2001:660:4406:594:c:0::27",
+      "kavlan-9": "2001:660:4406:595:c:0::27"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.39",
-      "ip6": "2001:660:4406:500:c::27",
+      "ip6": "2001:660:4406:500:c:0::27",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-4.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-4.json
index ec5f84a2c9f..10036b73ead 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-4.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::4",
-      "kavlan-11": "2001:660:4406:1a0:50c::4",
-      "kavlan-12": "2001:660:4406:2a0:50c::4",
-      "kavlan-13": "2001:660:4406:4a0:50c::4",
-      "kavlan-14": "2001:660:4406:5a0:50c::4",
-      "kavlan-16": "2001:660:4406:7a0:50c::4",
-      "kavlan-18": "2001:660:4406:8a0:50c::4",
-      "kavlan-2": "2001:660:4406:581:c::4",
-      "kavlan-20": "2001:660:4406:3a0:50c::4",
-      "kavlan-21": "2001:660:4406:6a0:50c::4",
-      "kavlan-3": "2001:660:4406:582:c::4",
-      "kavlan-4": "2001:660:4406:590:c::4",
-      "kavlan-5": "2001:660:4406:591:c::4",
-      "kavlan-6": "2001:660:4406:592:c::4",
-      "kavlan-7": "2001:660:4406:593:c::4",
-      "kavlan-8": "2001:660:4406:594:c::4",
-      "kavlan-9": "2001:660:4406:595:c::4"
+      "kavlan-1": "2001:660:4406:580:c:0::4",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::4",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::4",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::4",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::4",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::4",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::4",
+      "kavlan-2": "2001:660:4406:581:c:0::4",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::4",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::4",
+      "kavlan-3": "2001:660:4406:582:c:0::4",
+      "kavlan-4": "2001:660:4406:590:c:0::4",
+      "kavlan-5": "2001:660:4406:591:c:0::4",
+      "kavlan-6": "2001:660:4406:592:c:0::4",
+      "kavlan-7": "2001:660:4406:593:c:0::4",
+      "kavlan-8": "2001:660:4406:594:c:0::4",
+      "kavlan-9": "2001:660:4406:595:c:0::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.4",
-      "ip6": "2001:660:4406:500:c::4",
+      "ip6": "2001:660:4406:500:c:0::4",
       "kavlan": true,
       "mac": "18:03:73:ff:ce:4b",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-40.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-40.json
index 22f1993697a..ac83885978b 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-40.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-40.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::28",
-      "kavlan-11": "2001:660:4406:1a0:50c::28",
-      "kavlan-12": "2001:660:4406:2a0:50c::28",
-      "kavlan-13": "2001:660:4406:4a0:50c::28",
-      "kavlan-14": "2001:660:4406:5a0:50c::28",
-      "kavlan-16": "2001:660:4406:7a0:50c::28",
-      "kavlan-18": "2001:660:4406:8a0:50c::28",
-      "kavlan-2": "2001:660:4406:581:c::28",
-      "kavlan-20": "2001:660:4406:3a0:50c::28",
-      "kavlan-21": "2001:660:4406:6a0:50c::28",
-      "kavlan-3": "2001:660:4406:582:c::28",
-      "kavlan-4": "2001:660:4406:590:c::28",
-      "kavlan-5": "2001:660:4406:591:c::28",
-      "kavlan-6": "2001:660:4406:592:c::28",
-      "kavlan-7": "2001:660:4406:593:c::28",
-      "kavlan-8": "2001:660:4406:594:c::28",
-      "kavlan-9": "2001:660:4406:595:c::28"
+      "kavlan-1": "2001:660:4406:580:c:0::28",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::28",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::28",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::28",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::28",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::28",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::28",
+      "kavlan-2": "2001:660:4406:581:c:0::28",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::28",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::28",
+      "kavlan-3": "2001:660:4406:582:c:0::28",
+      "kavlan-4": "2001:660:4406:590:c:0::28",
+      "kavlan-5": "2001:660:4406:591:c:0::28",
+      "kavlan-6": "2001:660:4406:592:c:0::28",
+      "kavlan-7": "2001:660:4406:593:c:0::28",
+      "kavlan-8": "2001:660:4406:594:c:0::28",
+      "kavlan-9": "2001:660:4406:595:c:0::28"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.40",
-      "ip6": "2001:660:4406:500:c::28",
+      "ip6": "2001:660:4406:500:c:0::28",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-41.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-41.json
index b56368d3bda..428a6e8b4f4 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-41.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-41.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::29",
-      "kavlan-11": "2001:660:4406:1a0:50c::29",
-      "kavlan-12": "2001:660:4406:2a0:50c::29",
-      "kavlan-13": "2001:660:4406:4a0:50c::29",
-      "kavlan-14": "2001:660:4406:5a0:50c::29",
-      "kavlan-16": "2001:660:4406:7a0:50c::29",
-      "kavlan-18": "2001:660:4406:8a0:50c::29",
-      "kavlan-2": "2001:660:4406:581:c::29",
-      "kavlan-20": "2001:660:4406:3a0:50c::29",
-      "kavlan-21": "2001:660:4406:6a0:50c::29",
-      "kavlan-3": "2001:660:4406:582:c::29",
-      "kavlan-4": "2001:660:4406:590:c::29",
-      "kavlan-5": "2001:660:4406:591:c::29",
-      "kavlan-6": "2001:660:4406:592:c::29",
-      "kavlan-7": "2001:660:4406:593:c::29",
-      "kavlan-8": "2001:660:4406:594:c::29",
-      "kavlan-9": "2001:660:4406:595:c::29"
+      "kavlan-1": "2001:660:4406:580:c:0::29",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::29",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::29",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::29",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::29",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::29",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::29",
+      "kavlan-2": "2001:660:4406:581:c:0::29",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::29",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::29",
+      "kavlan-3": "2001:660:4406:582:c:0::29",
+      "kavlan-4": "2001:660:4406:590:c:0::29",
+      "kavlan-5": "2001:660:4406:591:c:0::29",
+      "kavlan-6": "2001:660:4406:592:c:0::29",
+      "kavlan-7": "2001:660:4406:593:c:0::29",
+      "kavlan-8": "2001:660:4406:594:c:0::29",
+      "kavlan-9": "2001:660:4406:595:c:0::29"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.41",
-      "ip6": "2001:660:4406:500:c::29",
+      "ip6": "2001:660:4406:500:c:0::29",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:09",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-42.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-42.json
index 29a8f569554..ac26024486b 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-42.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-42.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::2a",
-      "kavlan-11": "2001:660:4406:1a0:50c::2a",
-      "kavlan-12": "2001:660:4406:2a0:50c::2a",
-      "kavlan-13": "2001:660:4406:4a0:50c::2a",
-      "kavlan-14": "2001:660:4406:5a0:50c::2a",
-      "kavlan-16": "2001:660:4406:7a0:50c::2a",
-      "kavlan-18": "2001:660:4406:8a0:50c::2a",
-      "kavlan-2": "2001:660:4406:581:c::2a",
-      "kavlan-20": "2001:660:4406:3a0:50c::2a",
-      "kavlan-21": "2001:660:4406:6a0:50c::2a",
-      "kavlan-3": "2001:660:4406:582:c::2a",
-      "kavlan-4": "2001:660:4406:590:c::2a",
-      "kavlan-5": "2001:660:4406:591:c::2a",
-      "kavlan-6": "2001:660:4406:592:c::2a",
-      "kavlan-7": "2001:660:4406:593:c::2a",
-      "kavlan-8": "2001:660:4406:594:c::2a",
-      "kavlan-9": "2001:660:4406:595:c::2a"
+      "kavlan-1": "2001:660:4406:580:c:0::2a",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::2a",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::2a",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::2a",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::2a",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::2a",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::2a",
+      "kavlan-2": "2001:660:4406:581:c:0::2a",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::2a",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::2a",
+      "kavlan-3": "2001:660:4406:582:c:0::2a",
+      "kavlan-4": "2001:660:4406:590:c:0::2a",
+      "kavlan-5": "2001:660:4406:591:c:0::2a",
+      "kavlan-6": "2001:660:4406:592:c:0::2a",
+      "kavlan-7": "2001:660:4406:593:c:0::2a",
+      "kavlan-8": "2001:660:4406:594:c:0::2a",
+      "kavlan-9": "2001:660:4406:595:c:0::2a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.42",
-      "ip6": "2001:660:4406:500:c::2a",
+      "ip6": "2001:660:4406:500:c:0::2a",
       "kavlan": true,
       "mac": "78:45:c4:fc:3b:03",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-43.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-43.json
index 837a3a8037c..c41e846b91e 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-43.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-43.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::2b",
-      "kavlan-11": "2001:660:4406:1a0:50c::2b",
-      "kavlan-12": "2001:660:4406:2a0:50c::2b",
-      "kavlan-13": "2001:660:4406:4a0:50c::2b",
-      "kavlan-14": "2001:660:4406:5a0:50c::2b",
-      "kavlan-16": "2001:660:4406:7a0:50c::2b",
-      "kavlan-18": "2001:660:4406:8a0:50c::2b",
-      "kavlan-2": "2001:660:4406:581:c::2b",
-      "kavlan-20": "2001:660:4406:3a0:50c::2b",
-      "kavlan-21": "2001:660:4406:6a0:50c::2b",
-      "kavlan-3": "2001:660:4406:582:c::2b",
-      "kavlan-4": "2001:660:4406:590:c::2b",
-      "kavlan-5": "2001:660:4406:591:c::2b",
-      "kavlan-6": "2001:660:4406:592:c::2b",
-      "kavlan-7": "2001:660:4406:593:c::2b",
-      "kavlan-8": "2001:660:4406:594:c::2b",
-      "kavlan-9": "2001:660:4406:595:c::2b"
+      "kavlan-1": "2001:660:4406:580:c:0::2b",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::2b",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::2b",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::2b",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::2b",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::2b",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::2b",
+      "kavlan-2": "2001:660:4406:581:c:0::2b",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::2b",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::2b",
+      "kavlan-3": "2001:660:4406:582:c:0::2b",
+      "kavlan-4": "2001:660:4406:590:c:0::2b",
+      "kavlan-5": "2001:660:4406:591:c:0::2b",
+      "kavlan-6": "2001:660:4406:592:c:0::2b",
+      "kavlan-7": "2001:660:4406:593:c:0::2b",
+      "kavlan-8": "2001:660:4406:594:c:0::2b",
+      "kavlan-9": "2001:660:4406:595:c:0::2b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.43",
-      "ip6": "2001:660:4406:500:c::2b",
+      "ip6": "2001:660:4406:500:c:0::2b",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:c7",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-44.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-44.json
index 80788073217..bded97b89cb 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-44.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-44.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::2c",
-      "kavlan-11": "2001:660:4406:1a0:50c::2c",
-      "kavlan-12": "2001:660:4406:2a0:50c::2c",
-      "kavlan-13": "2001:660:4406:4a0:50c::2c",
-      "kavlan-14": "2001:660:4406:5a0:50c::2c",
-      "kavlan-16": "2001:660:4406:7a0:50c::2c",
-      "kavlan-18": "2001:660:4406:8a0:50c::2c",
-      "kavlan-2": "2001:660:4406:581:c::2c",
-      "kavlan-20": "2001:660:4406:3a0:50c::2c",
-      "kavlan-21": "2001:660:4406:6a0:50c::2c",
-      "kavlan-3": "2001:660:4406:582:c::2c",
-      "kavlan-4": "2001:660:4406:590:c::2c",
-      "kavlan-5": "2001:660:4406:591:c::2c",
-      "kavlan-6": "2001:660:4406:592:c::2c",
-      "kavlan-7": "2001:660:4406:593:c::2c",
-      "kavlan-8": "2001:660:4406:594:c::2c",
-      "kavlan-9": "2001:660:4406:595:c::2c"
+      "kavlan-1": "2001:660:4406:580:c:0::2c",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::2c",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::2c",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::2c",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::2c",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::2c",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::2c",
+      "kavlan-2": "2001:660:4406:581:c:0::2c",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::2c",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::2c",
+      "kavlan-3": "2001:660:4406:582:c:0::2c",
+      "kavlan-4": "2001:660:4406:590:c:0::2c",
+      "kavlan-5": "2001:660:4406:591:c:0::2c",
+      "kavlan-6": "2001:660:4406:592:c:0::2c",
+      "kavlan-7": "2001:660:4406:593:c:0::2c",
+      "kavlan-8": "2001:660:4406:594:c:0::2c",
+      "kavlan-9": "2001:660:4406:595:c:0::2c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.44",
-      "ip6": "2001:660:4406:500:c::2c",
+      "ip6": "2001:660:4406:500:c:0::2c",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:e2",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-45.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-45.json
index 5d6f9a2f87f..285d7e49b18 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-45.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-45.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::2d",
-      "kavlan-11": "2001:660:4406:1a0:50c::2d",
-      "kavlan-12": "2001:660:4406:2a0:50c::2d",
-      "kavlan-13": "2001:660:4406:4a0:50c::2d",
-      "kavlan-14": "2001:660:4406:5a0:50c::2d",
-      "kavlan-16": "2001:660:4406:7a0:50c::2d",
-      "kavlan-18": "2001:660:4406:8a0:50c::2d",
-      "kavlan-2": "2001:660:4406:581:c::2d",
-      "kavlan-20": "2001:660:4406:3a0:50c::2d",
-      "kavlan-21": "2001:660:4406:6a0:50c::2d",
-      "kavlan-3": "2001:660:4406:582:c::2d",
-      "kavlan-4": "2001:660:4406:590:c::2d",
-      "kavlan-5": "2001:660:4406:591:c::2d",
-      "kavlan-6": "2001:660:4406:592:c::2d",
-      "kavlan-7": "2001:660:4406:593:c::2d",
-      "kavlan-8": "2001:660:4406:594:c::2d",
-      "kavlan-9": "2001:660:4406:595:c::2d"
+      "kavlan-1": "2001:660:4406:580:c:0::2d",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::2d",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::2d",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::2d",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::2d",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::2d",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::2d",
+      "kavlan-2": "2001:660:4406:581:c:0::2d",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::2d",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::2d",
+      "kavlan-3": "2001:660:4406:582:c:0::2d",
+      "kavlan-4": "2001:660:4406:590:c:0::2d",
+      "kavlan-5": "2001:660:4406:591:c:0::2d",
+      "kavlan-6": "2001:660:4406:592:c:0::2d",
+      "kavlan-7": "2001:660:4406:593:c:0::2d",
+      "kavlan-8": "2001:660:4406:594:c:0::2d",
+      "kavlan-9": "2001:660:4406:595:c:0::2d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.45",
-      "ip6": "2001:660:4406:500:c::2d",
+      "ip6": "2001:660:4406:500:c:0::2d",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:6a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-46.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-46.json
index 454d4ad28f9..9b0906455eb 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-46.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-46.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::2e",
-      "kavlan-11": "2001:660:4406:1a0:50c::2e",
-      "kavlan-12": "2001:660:4406:2a0:50c::2e",
-      "kavlan-13": "2001:660:4406:4a0:50c::2e",
-      "kavlan-14": "2001:660:4406:5a0:50c::2e",
-      "kavlan-16": "2001:660:4406:7a0:50c::2e",
-      "kavlan-18": "2001:660:4406:8a0:50c::2e",
-      "kavlan-2": "2001:660:4406:581:c::2e",
-      "kavlan-20": "2001:660:4406:3a0:50c::2e",
-      "kavlan-21": "2001:660:4406:6a0:50c::2e",
-      "kavlan-3": "2001:660:4406:582:c::2e",
-      "kavlan-4": "2001:660:4406:590:c::2e",
-      "kavlan-5": "2001:660:4406:591:c::2e",
-      "kavlan-6": "2001:660:4406:592:c::2e",
-      "kavlan-7": "2001:660:4406:593:c::2e",
-      "kavlan-8": "2001:660:4406:594:c::2e",
-      "kavlan-9": "2001:660:4406:595:c::2e"
+      "kavlan-1": "2001:660:4406:580:c:0::2e",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::2e",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::2e",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::2e",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::2e",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::2e",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::2e",
+      "kavlan-2": "2001:660:4406:581:c:0::2e",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::2e",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::2e",
+      "kavlan-3": "2001:660:4406:582:c:0::2e",
+      "kavlan-4": "2001:660:4406:590:c:0::2e",
+      "kavlan-5": "2001:660:4406:591:c:0::2e",
+      "kavlan-6": "2001:660:4406:592:c:0::2e",
+      "kavlan-7": "2001:660:4406:593:c:0::2e",
+      "kavlan-8": "2001:660:4406:594:c:0::2e",
+      "kavlan-9": "2001:660:4406:595:c:0::2e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.46",
-      "ip6": "2001:660:4406:500:c::2e",
+      "ip6": "2001:660:4406:500:c:0::2e",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:49",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-47.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-47.json
index 20dec65e61a..0fc9790d2ed 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-47.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-47.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::2f",
-      "kavlan-11": "2001:660:4406:1a0:50c::2f",
-      "kavlan-12": "2001:660:4406:2a0:50c::2f",
-      "kavlan-13": "2001:660:4406:4a0:50c::2f",
-      "kavlan-14": "2001:660:4406:5a0:50c::2f",
-      "kavlan-16": "2001:660:4406:7a0:50c::2f",
-      "kavlan-18": "2001:660:4406:8a0:50c::2f",
-      "kavlan-2": "2001:660:4406:581:c::2f",
-      "kavlan-20": "2001:660:4406:3a0:50c::2f",
-      "kavlan-21": "2001:660:4406:6a0:50c::2f",
-      "kavlan-3": "2001:660:4406:582:c::2f",
-      "kavlan-4": "2001:660:4406:590:c::2f",
-      "kavlan-5": "2001:660:4406:591:c::2f",
-      "kavlan-6": "2001:660:4406:592:c::2f",
-      "kavlan-7": "2001:660:4406:593:c::2f",
-      "kavlan-8": "2001:660:4406:594:c::2f",
-      "kavlan-9": "2001:660:4406:595:c::2f"
+      "kavlan-1": "2001:660:4406:580:c:0::2f",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::2f",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::2f",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::2f",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::2f",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::2f",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::2f",
+      "kavlan-2": "2001:660:4406:581:c:0::2f",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::2f",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::2f",
+      "kavlan-3": "2001:660:4406:582:c:0::2f",
+      "kavlan-4": "2001:660:4406:590:c:0::2f",
+      "kavlan-5": "2001:660:4406:591:c:0::2f",
+      "kavlan-6": "2001:660:4406:592:c:0::2f",
+      "kavlan-7": "2001:660:4406:593:c:0::2f",
+      "kavlan-8": "2001:660:4406:594:c:0::2f",
+      "kavlan-9": "2001:660:4406:595:c:0::2f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.47",
-      "ip6": "2001:660:4406:500:c::2f",
+      "ip6": "2001:660:4406:500:c:0::2f",
       "kavlan": true,
       "mac": "78:45:c4:fc:3a:34",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-5.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-5.json
index 30ff3b27cbb..a758019b538 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-5.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::5",
-      "kavlan-11": "2001:660:4406:1a0:50c::5",
-      "kavlan-12": "2001:660:4406:2a0:50c::5",
-      "kavlan-13": "2001:660:4406:4a0:50c::5",
-      "kavlan-14": "2001:660:4406:5a0:50c::5",
-      "kavlan-16": "2001:660:4406:7a0:50c::5",
-      "kavlan-18": "2001:660:4406:8a0:50c::5",
-      "kavlan-2": "2001:660:4406:581:c::5",
-      "kavlan-20": "2001:660:4406:3a0:50c::5",
-      "kavlan-21": "2001:660:4406:6a0:50c::5",
-      "kavlan-3": "2001:660:4406:582:c::5",
-      "kavlan-4": "2001:660:4406:590:c::5",
-      "kavlan-5": "2001:660:4406:591:c::5",
-      "kavlan-6": "2001:660:4406:592:c::5",
-      "kavlan-7": "2001:660:4406:593:c::5",
-      "kavlan-8": "2001:660:4406:594:c::5",
-      "kavlan-9": "2001:660:4406:595:c::5"
+      "kavlan-1": "2001:660:4406:580:c:0::5",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::5",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::5",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::5",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::5",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::5",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::5",
+      "kavlan-2": "2001:660:4406:581:c:0::5",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::5",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::5",
+      "kavlan-3": "2001:660:4406:582:c:0::5",
+      "kavlan-4": "2001:660:4406:590:c:0::5",
+      "kavlan-5": "2001:660:4406:591:c:0::5",
+      "kavlan-6": "2001:660:4406:592:c:0::5",
+      "kavlan-7": "2001:660:4406:593:c:0::5",
+      "kavlan-8": "2001:660:4406:594:c:0::5",
+      "kavlan-9": "2001:660:4406:595:c:0::5"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.5",
-      "ip6": "2001:660:4406:500:c::5",
+      "ip6": "2001:660:4406:500:c:0::5",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:53",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-6.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-6.json
index 5edebbbcea1..c8439fce70d 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-6.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::6",
-      "kavlan-11": "2001:660:4406:1a0:50c::6",
-      "kavlan-12": "2001:660:4406:2a0:50c::6",
-      "kavlan-13": "2001:660:4406:4a0:50c::6",
-      "kavlan-14": "2001:660:4406:5a0:50c::6",
-      "kavlan-16": "2001:660:4406:7a0:50c::6",
-      "kavlan-18": "2001:660:4406:8a0:50c::6",
-      "kavlan-2": "2001:660:4406:581:c::6",
-      "kavlan-20": "2001:660:4406:3a0:50c::6",
-      "kavlan-21": "2001:660:4406:6a0:50c::6",
-      "kavlan-3": "2001:660:4406:582:c::6",
-      "kavlan-4": "2001:660:4406:590:c::6",
-      "kavlan-5": "2001:660:4406:591:c::6",
-      "kavlan-6": "2001:660:4406:592:c::6",
-      "kavlan-7": "2001:660:4406:593:c::6",
-      "kavlan-8": "2001:660:4406:594:c::6",
-      "kavlan-9": "2001:660:4406:595:c::6"
+      "kavlan-1": "2001:660:4406:580:c:0::6",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::6",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::6",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::6",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::6",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::6",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::6",
+      "kavlan-2": "2001:660:4406:581:c:0::6",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::6",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::6",
+      "kavlan-3": "2001:660:4406:582:c:0::6",
+      "kavlan-4": "2001:660:4406:590:c:0::6",
+      "kavlan-5": "2001:660:4406:591:c:0::6",
+      "kavlan-6": "2001:660:4406:592:c:0::6",
+      "kavlan-7": "2001:660:4406:593:c:0::6",
+      "kavlan-8": "2001:660:4406:594:c:0::6",
+      "kavlan-9": "2001:660:4406:595:c:0::6"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.6",
-      "ip6": "2001:660:4406:500:c::6",
+      "ip6": "2001:660:4406:500:c:0::6",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-7.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-7.json
index 59ee93585c4..e855abea1ea 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-7.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::7",
-      "kavlan-11": "2001:660:4406:1a0:50c::7",
-      "kavlan-12": "2001:660:4406:2a0:50c::7",
-      "kavlan-13": "2001:660:4406:4a0:50c::7",
-      "kavlan-14": "2001:660:4406:5a0:50c::7",
-      "kavlan-16": "2001:660:4406:7a0:50c::7",
-      "kavlan-18": "2001:660:4406:8a0:50c::7",
-      "kavlan-2": "2001:660:4406:581:c::7",
-      "kavlan-20": "2001:660:4406:3a0:50c::7",
-      "kavlan-21": "2001:660:4406:6a0:50c::7",
-      "kavlan-3": "2001:660:4406:582:c::7",
-      "kavlan-4": "2001:660:4406:590:c::7",
-      "kavlan-5": "2001:660:4406:591:c::7",
-      "kavlan-6": "2001:660:4406:592:c::7",
-      "kavlan-7": "2001:660:4406:593:c::7",
-      "kavlan-8": "2001:660:4406:594:c::7",
-      "kavlan-9": "2001:660:4406:595:c::7"
+      "kavlan-1": "2001:660:4406:580:c:0::7",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::7",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::7",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::7",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::7",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::7",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::7",
+      "kavlan-2": "2001:660:4406:581:c:0::7",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::7",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::7",
+      "kavlan-3": "2001:660:4406:582:c:0::7",
+      "kavlan-4": "2001:660:4406:590:c:0::7",
+      "kavlan-5": "2001:660:4406:591:c:0::7",
+      "kavlan-6": "2001:660:4406:592:c:0::7",
+      "kavlan-7": "2001:660:4406:593:c:0::7",
+      "kavlan-8": "2001:660:4406:594:c:0::7",
+      "kavlan-9": "2001:660:4406:595:c:0::7"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.7",
-      "ip6": "2001:660:4406:500:c::7",
+      "ip6": "2001:660:4406:500:c:0::7",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:ce",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-8.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-8.json
index 7db9fc7eb6e..b80ee1b9088 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-8.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::8",
-      "kavlan-11": "2001:660:4406:1a0:50c::8",
-      "kavlan-12": "2001:660:4406:2a0:50c::8",
-      "kavlan-13": "2001:660:4406:4a0:50c::8",
-      "kavlan-14": "2001:660:4406:5a0:50c::8",
-      "kavlan-16": "2001:660:4406:7a0:50c::8",
-      "kavlan-18": "2001:660:4406:8a0:50c::8",
-      "kavlan-2": "2001:660:4406:581:c::8",
-      "kavlan-20": "2001:660:4406:3a0:50c::8",
-      "kavlan-21": "2001:660:4406:6a0:50c::8",
-      "kavlan-3": "2001:660:4406:582:c::8",
-      "kavlan-4": "2001:660:4406:590:c::8",
-      "kavlan-5": "2001:660:4406:591:c::8",
-      "kavlan-6": "2001:660:4406:592:c::8",
-      "kavlan-7": "2001:660:4406:593:c::8",
-      "kavlan-8": "2001:660:4406:594:c::8",
-      "kavlan-9": "2001:660:4406:595:c::8"
+      "kavlan-1": "2001:660:4406:580:c:0::8",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::8",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::8",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::8",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::8",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::8",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::8",
+      "kavlan-2": "2001:660:4406:581:c:0::8",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::8",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::8",
+      "kavlan-3": "2001:660:4406:582:c:0::8",
+      "kavlan-4": "2001:660:4406:590:c:0::8",
+      "kavlan-5": "2001:660:4406:591:c:0::8",
+      "kavlan-6": "2001:660:4406:592:c:0::8",
+      "kavlan-7": "2001:660:4406:593:c:0::8",
+      "kavlan-8": "2001:660:4406:594:c:0::8",
+      "kavlan-9": "2001:660:4406:595:c:0::8"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.8",
-      "ip6": "2001:660:4406:500:c::8",
+      "ip6": "2001:660:4406:500:c:0::8",
       "kavlan": true,
       "mac": "78:45:c4:fc:39:4a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-9.json b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-9.json
index 53c3bf00855..a3061ccdaec 100644
--- a/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-9.json
+++ b/data/grid5000/sites/nancy/clusters/grcinq/nodes/grcinq-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:c::9",
-      "kavlan-11": "2001:660:4406:1a0:50c::9",
-      "kavlan-12": "2001:660:4406:2a0:50c::9",
-      "kavlan-13": "2001:660:4406:4a0:50c::9",
-      "kavlan-14": "2001:660:4406:5a0:50c::9",
-      "kavlan-16": "2001:660:4406:7a0:50c::9",
-      "kavlan-18": "2001:660:4406:8a0:50c::9",
-      "kavlan-2": "2001:660:4406:581:c::9",
-      "kavlan-20": "2001:660:4406:3a0:50c::9",
-      "kavlan-21": "2001:660:4406:6a0:50c::9",
-      "kavlan-3": "2001:660:4406:582:c::9",
-      "kavlan-4": "2001:660:4406:590:c::9",
-      "kavlan-5": "2001:660:4406:591:c::9",
-      "kavlan-6": "2001:660:4406:592:c::9",
-      "kavlan-7": "2001:660:4406:593:c::9",
-      "kavlan-8": "2001:660:4406:594:c::9",
-      "kavlan-9": "2001:660:4406:595:c::9"
+      "kavlan-1": "2001:660:4406:580:c:0::9",
+      "kavlan-11": "2001:660:4406:1a0:50c:0::9",
+      "kavlan-12": "2001:660:4406:2a0:50c:0::9",
+      "kavlan-13": "2001:660:4406:4a0:50c:0::9",
+      "kavlan-14": "2001:660:4406:5a0:50c:0::9",
+      "kavlan-16": "2001:660:4406:7a0:50c:0::9",
+      "kavlan-18": "2001:660:4406:8a0:50c:0::9",
+      "kavlan-2": "2001:660:4406:581:c:0::9",
+      "kavlan-20": "2001:660:4406:3a0:50c:0::9",
+      "kavlan-21": "2001:660:4406:6a0:50c:0::9",
+      "kavlan-3": "2001:660:4406:582:c:0::9",
+      "kavlan-4": "2001:660:4406:590:c:0::9",
+      "kavlan-5": "2001:660:4406:591:c:0::9",
+      "kavlan-6": "2001:660:4406:592:c:0::9",
+      "kavlan-7": "2001:660:4406:593:c:0::9",
+      "kavlan-8": "2001:660:4406:594:c:0::9",
+      "kavlan-9": "2001:660:4406:595:c:0::9"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "1.57.0",
       "interface": "Ethernet",
       "ip": "172.16.75.9",
-      "ip6": "2001:660:4406:500:c::9",
+      "ip6": "2001:660:4406:500:c:0::9",
       "kavlan": true,
       "mac": "84:8f:69:fd:27:09",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-1.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-1.json
index 5ea03233967..e45993e4c98 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-1.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-1.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::1",
-      "kavlan-11": "2001:660:4406:1a0:50b::1",
-      "kavlan-12": "2001:660:4406:2a0:50b::1",
-      "kavlan-13": "2001:660:4406:4a0:50b::1",
-      "kavlan-14": "2001:660:4406:5a0:50b::1",
-      "kavlan-16": "2001:660:4406:7a0:50b::1",
-      "kavlan-18": "2001:660:4406:8a0:50b::1",
-      "kavlan-2": "2001:660:4406:581:b::1",
-      "kavlan-20": "2001:660:4406:3a0:50b::1",
-      "kavlan-21": "2001:660:4406:6a0:50b::1",
-      "kavlan-3": "2001:660:4406:582:b::1",
-      "kavlan-4": "2001:660:4406:590:b::1",
-      "kavlan-5": "2001:660:4406:591:b::1",
-      "kavlan-6": "2001:660:4406:592:b::1",
-      "kavlan-7": "2001:660:4406:593:b::1",
-      "kavlan-8": "2001:660:4406:594:b::1",
-      "kavlan-9": "2001:660:4406:595:b::1"
+      "kavlan-1": "2001:660:4406:580:b:0::1",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::1",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::1",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::1",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::1",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::1",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::1",
+      "kavlan-2": "2001:660:4406:581:b:0::1",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::1",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::1",
+      "kavlan-3": "2001:660:4406:582:b:0::1",
+      "kavlan-4": "2001:660:4406:590:b:0::1",
+      "kavlan-5": "2001:660:4406:591:b:0::1",
+      "kavlan-6": "2001:660:4406:592:b:0::1",
+      "kavlan-7": "2001:660:4406:593:b:0::1",
+      "kavlan-8": "2001:660:4406:594:b:0::1",
+      "kavlan-9": "2001:660:4406:595:b:0::1"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.1",
-      "ip6": "2001:660:4406:500:b::1",
+      "ip6": "2001:660:4406:500:b:0::1",
       "kavlan": true,
       "mac": "24:6e:96:63:d7:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-10.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-10.json
index 9e34b8ec957..b0ac0795a4b 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-10.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-10.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::a",
-      "kavlan-11": "2001:660:4406:1a0:50b::a",
-      "kavlan-12": "2001:660:4406:2a0:50b::a",
-      "kavlan-13": "2001:660:4406:4a0:50b::a",
-      "kavlan-14": "2001:660:4406:5a0:50b::a",
-      "kavlan-16": "2001:660:4406:7a0:50b::a",
-      "kavlan-18": "2001:660:4406:8a0:50b::a",
-      "kavlan-2": "2001:660:4406:581:b::a",
-      "kavlan-20": "2001:660:4406:3a0:50b::a",
-      "kavlan-21": "2001:660:4406:6a0:50b::a",
-      "kavlan-3": "2001:660:4406:582:b::a",
-      "kavlan-4": "2001:660:4406:590:b::a",
-      "kavlan-5": "2001:660:4406:591:b::a",
-      "kavlan-6": "2001:660:4406:592:b::a",
-      "kavlan-7": "2001:660:4406:593:b::a",
-      "kavlan-8": "2001:660:4406:594:b::a",
-      "kavlan-9": "2001:660:4406:595:b::a"
+      "kavlan-1": "2001:660:4406:580:b:0::a",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::a",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::a",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::a",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::a",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::a",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::a",
+      "kavlan-2": "2001:660:4406:581:b:0::a",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::a",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::a",
+      "kavlan-3": "2001:660:4406:582:b:0::a",
+      "kavlan-4": "2001:660:4406:590:b:0::a",
+      "kavlan-5": "2001:660:4406:591:b:0::a",
+      "kavlan-6": "2001:660:4406:592:b:0::a",
+      "kavlan-7": "2001:660:4406:593:b:0::a",
+      "kavlan-8": "2001:660:4406:594:b:0::a",
+      "kavlan-9": "2001:660:4406:595:b:0::a"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.10",
-      "ip6": "2001:660:4406:500:b::a",
+      "ip6": "2001:660:4406:500:b:0::a",
       "kavlan": true,
       "mac": "24:6e:96:63:e2:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-11.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-11.json
index 10b28cd946a..e996c6d9559 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-11.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-11.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::b",
-      "kavlan-11": "2001:660:4406:1a0:50b::b",
-      "kavlan-12": "2001:660:4406:2a0:50b::b",
-      "kavlan-13": "2001:660:4406:4a0:50b::b",
-      "kavlan-14": "2001:660:4406:5a0:50b::b",
-      "kavlan-16": "2001:660:4406:7a0:50b::b",
-      "kavlan-18": "2001:660:4406:8a0:50b::b",
-      "kavlan-2": "2001:660:4406:581:b::b",
-      "kavlan-20": "2001:660:4406:3a0:50b::b",
-      "kavlan-21": "2001:660:4406:6a0:50b::b",
-      "kavlan-3": "2001:660:4406:582:b::b",
-      "kavlan-4": "2001:660:4406:590:b::b",
-      "kavlan-5": "2001:660:4406:591:b::b",
-      "kavlan-6": "2001:660:4406:592:b::b",
-      "kavlan-7": "2001:660:4406:593:b::b",
-      "kavlan-8": "2001:660:4406:594:b::b",
-      "kavlan-9": "2001:660:4406:595:b::b"
+      "kavlan-1": "2001:660:4406:580:b:0::b",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::b",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::b",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::b",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::b",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::b",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::b",
+      "kavlan-2": "2001:660:4406:581:b:0::b",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::b",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::b",
+      "kavlan-3": "2001:660:4406:582:b:0::b",
+      "kavlan-4": "2001:660:4406:590:b:0::b",
+      "kavlan-5": "2001:660:4406:591:b:0::b",
+      "kavlan-6": "2001:660:4406:592:b:0::b",
+      "kavlan-7": "2001:660:4406:593:b:0::b",
+      "kavlan-8": "2001:660:4406:594:b:0::b",
+      "kavlan-9": "2001:660:4406:595:b:0::b"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.11",
-      "ip6": "2001:660:4406:500:b::b",
+      "ip6": "2001:660:4406:500:b:0::b",
       "kavlan": true,
       "mac": "24:6e:96:63:73:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-12.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-12.json
index 5073d79c72c..8f0aa40c84b 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-12.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-12.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::c",
-      "kavlan-11": "2001:660:4406:1a0:50b::c",
-      "kavlan-12": "2001:660:4406:2a0:50b::c",
-      "kavlan-13": "2001:660:4406:4a0:50b::c",
-      "kavlan-14": "2001:660:4406:5a0:50b::c",
-      "kavlan-16": "2001:660:4406:7a0:50b::c",
-      "kavlan-18": "2001:660:4406:8a0:50b::c",
-      "kavlan-2": "2001:660:4406:581:b::c",
-      "kavlan-20": "2001:660:4406:3a0:50b::c",
-      "kavlan-21": "2001:660:4406:6a0:50b::c",
-      "kavlan-3": "2001:660:4406:582:b::c",
-      "kavlan-4": "2001:660:4406:590:b::c",
-      "kavlan-5": "2001:660:4406:591:b::c",
-      "kavlan-6": "2001:660:4406:592:b::c",
-      "kavlan-7": "2001:660:4406:593:b::c",
-      "kavlan-8": "2001:660:4406:594:b::c",
-      "kavlan-9": "2001:660:4406:595:b::c"
+      "kavlan-1": "2001:660:4406:580:b:0::c",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::c",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::c",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::c",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::c",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::c",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::c",
+      "kavlan-2": "2001:660:4406:581:b:0::c",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::c",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::c",
+      "kavlan-3": "2001:660:4406:582:b:0::c",
+      "kavlan-4": "2001:660:4406:590:b:0::c",
+      "kavlan-5": "2001:660:4406:591:b:0::c",
+      "kavlan-6": "2001:660:4406:592:b:0::c",
+      "kavlan-7": "2001:660:4406:593:b:0::c",
+      "kavlan-8": "2001:660:4406:594:b:0::c",
+      "kavlan-9": "2001:660:4406:595:b:0::c"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.12",
-      "ip6": "2001:660:4406:500:b::c",
+      "ip6": "2001:660:4406:500:b:0::c",
       "kavlan": true,
       "mac": "24:6e:96:63:d7:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-13.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-13.json
index b625faf7a79..471de0f056c 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-13.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-13.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::d",
-      "kavlan-11": "2001:660:4406:1a0:50b::d",
-      "kavlan-12": "2001:660:4406:2a0:50b::d",
-      "kavlan-13": "2001:660:4406:4a0:50b::d",
-      "kavlan-14": "2001:660:4406:5a0:50b::d",
-      "kavlan-16": "2001:660:4406:7a0:50b::d",
-      "kavlan-18": "2001:660:4406:8a0:50b::d",
-      "kavlan-2": "2001:660:4406:581:b::d",
-      "kavlan-20": "2001:660:4406:3a0:50b::d",
-      "kavlan-21": "2001:660:4406:6a0:50b::d",
-      "kavlan-3": "2001:660:4406:582:b::d",
-      "kavlan-4": "2001:660:4406:590:b::d",
-      "kavlan-5": "2001:660:4406:591:b::d",
-      "kavlan-6": "2001:660:4406:592:b::d",
-      "kavlan-7": "2001:660:4406:593:b::d",
-      "kavlan-8": "2001:660:4406:594:b::d",
-      "kavlan-9": "2001:660:4406:595:b::d"
+      "kavlan-1": "2001:660:4406:580:b:0::d",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::d",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::d",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::d",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::d",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::d",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::d",
+      "kavlan-2": "2001:660:4406:581:b:0::d",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::d",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::d",
+      "kavlan-3": "2001:660:4406:582:b:0::d",
+      "kavlan-4": "2001:660:4406:590:b:0::d",
+      "kavlan-5": "2001:660:4406:591:b:0::d",
+      "kavlan-6": "2001:660:4406:592:b:0::d",
+      "kavlan-7": "2001:660:4406:593:b:0::d",
+      "kavlan-8": "2001:660:4406:594:b:0::d",
+      "kavlan-9": "2001:660:4406:595:b:0::d"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.13",
-      "ip6": "2001:660:4406:500:b::d",
+      "ip6": "2001:660:4406:500:b:0::d",
       "kavlan": true,
       "mac": "24:6e:96:63:de:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-14.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-14.json
index c941b6a414c..da968b5e3d7 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-14.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-14.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::e",
-      "kavlan-11": "2001:660:4406:1a0:50b::e",
-      "kavlan-12": "2001:660:4406:2a0:50b::e",
-      "kavlan-13": "2001:660:4406:4a0:50b::e",
-      "kavlan-14": "2001:660:4406:5a0:50b::e",
-      "kavlan-16": "2001:660:4406:7a0:50b::e",
-      "kavlan-18": "2001:660:4406:8a0:50b::e",
-      "kavlan-2": "2001:660:4406:581:b::e",
-      "kavlan-20": "2001:660:4406:3a0:50b::e",
-      "kavlan-21": "2001:660:4406:6a0:50b::e",
-      "kavlan-3": "2001:660:4406:582:b::e",
-      "kavlan-4": "2001:660:4406:590:b::e",
-      "kavlan-5": "2001:660:4406:591:b::e",
-      "kavlan-6": "2001:660:4406:592:b::e",
-      "kavlan-7": "2001:660:4406:593:b::e",
-      "kavlan-8": "2001:660:4406:594:b::e",
-      "kavlan-9": "2001:660:4406:595:b::e"
+      "kavlan-1": "2001:660:4406:580:b:0::e",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::e",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::e",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::e",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::e",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::e",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::e",
+      "kavlan-2": "2001:660:4406:581:b:0::e",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::e",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::e",
+      "kavlan-3": "2001:660:4406:582:b:0::e",
+      "kavlan-4": "2001:660:4406:590:b:0::e",
+      "kavlan-5": "2001:660:4406:591:b:0::e",
+      "kavlan-6": "2001:660:4406:592:b:0::e",
+      "kavlan-7": "2001:660:4406:593:b:0::e",
+      "kavlan-8": "2001:660:4406:594:b:0::e",
+      "kavlan-9": "2001:660:4406:595:b:0::e"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.14",
-      "ip6": "2001:660:4406:500:b::e",
+      "ip6": "2001:660:4406:500:b:0::e",
       "kavlan": true,
       "mac": "24:6e:96:63:dd:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-2.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-2.json
index 15cd628c840..7b9be79f7ef 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-2.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-2.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::2",
-      "kavlan-11": "2001:660:4406:1a0:50b::2",
-      "kavlan-12": "2001:660:4406:2a0:50b::2",
-      "kavlan-13": "2001:660:4406:4a0:50b::2",
-      "kavlan-14": "2001:660:4406:5a0:50b::2",
-      "kavlan-16": "2001:660:4406:7a0:50b::2",
-      "kavlan-18": "2001:660:4406:8a0:50b::2",
-      "kavlan-2": "2001:660:4406:581:b::2",
-      "kavlan-20": "2001:660:4406:3a0:50b::2",
-      "kavlan-21": "2001:660:4406:6a0:50b::2",
-      "kavlan-3": "2001:660:4406:582:b::2",
-      "kavlan-4": "2001:660:4406:590:b::2",
-      "kavlan-5": "2001:660:4406:591:b::2",
-      "kavlan-6": "2001:660:4406:592:b::2",
-      "kavlan-7": "2001:660:4406:593:b::2",
-      "kavlan-8": "2001:660:4406:594:b::2",
-      "kavlan-9": "2001:660:4406:595:b::2"
+      "kavlan-1": "2001:660:4406:580:b:0::2",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::2",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::2",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::2",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::2",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::2",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::2",
+      "kavlan-2": "2001:660:4406:581:b:0::2",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::2",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::2",
+      "kavlan-3": "2001:660:4406:582:b:0::2",
+      "kavlan-4": "2001:660:4406:590:b:0::2",
+      "kavlan-5": "2001:660:4406:591:b:0::2",
+      "kavlan-6": "2001:660:4406:592:b:0::2",
+      "kavlan-7": "2001:660:4406:593:b:0::2",
+      "kavlan-8": "2001:660:4406:594:b:0::2",
+      "kavlan-9": "2001:660:4406:595:b:0::2"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.2",
-      "ip6": "2001:660:4406:500:b::2",
+      "ip6": "2001:660:4406:500:b:0::2",
       "kavlan": true,
       "mac": "24:6e:96:63:f1:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-3.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-3.json
index d7c1081b6bf..a8539100887 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-3.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-3.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::3",
-      "kavlan-11": "2001:660:4406:1a0:50b::3",
-      "kavlan-12": "2001:660:4406:2a0:50b::3",
-      "kavlan-13": "2001:660:4406:4a0:50b::3",
-      "kavlan-14": "2001:660:4406:5a0:50b::3",
-      "kavlan-16": "2001:660:4406:7a0:50b::3",
-      "kavlan-18": "2001:660:4406:8a0:50b::3",
-      "kavlan-2": "2001:660:4406:581:b::3",
-      "kavlan-20": "2001:660:4406:3a0:50b::3",
-      "kavlan-21": "2001:660:4406:6a0:50b::3",
-      "kavlan-3": "2001:660:4406:582:b::3",
-      "kavlan-4": "2001:660:4406:590:b::3",
-      "kavlan-5": "2001:660:4406:591:b::3",
-      "kavlan-6": "2001:660:4406:592:b::3",
-      "kavlan-7": "2001:660:4406:593:b::3",
-      "kavlan-8": "2001:660:4406:594:b::3",
-      "kavlan-9": "2001:660:4406:595:b::3"
+      "kavlan-1": "2001:660:4406:580:b:0::3",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::3",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::3",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::3",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::3",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::3",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::3",
+      "kavlan-2": "2001:660:4406:581:b:0::3",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::3",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::3",
+      "kavlan-3": "2001:660:4406:582:b:0::3",
+      "kavlan-4": "2001:660:4406:590:b:0::3",
+      "kavlan-5": "2001:660:4406:591:b:0::3",
+      "kavlan-6": "2001:660:4406:592:b:0::3",
+      "kavlan-7": "2001:660:4406:593:b:0::3",
+      "kavlan-8": "2001:660:4406:594:b:0::3",
+      "kavlan-9": "2001:660:4406:595:b:0::3"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.3",
-      "ip6": "2001:660:4406:500:b::3",
+      "ip6": "2001:660:4406:500:b:0::3",
       "kavlan": true,
       "mac": "24:6e:96:63:de:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-4.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-4.json
index 9ec1dbc574e..d990561b367 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-4.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-4.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::4",
-      "kavlan-11": "2001:660:4406:1a0:50b::4",
-      "kavlan-12": "2001:660:4406:2a0:50b::4",
-      "kavlan-13": "2001:660:4406:4a0:50b::4",
-      "kavlan-14": "2001:660:4406:5a0:50b::4",
-      "kavlan-16": "2001:660:4406:7a0:50b::4",
-      "kavlan-18": "2001:660:4406:8a0:50b::4",
-      "kavlan-2": "2001:660:4406:581:b::4",
-      "kavlan-20": "2001:660:4406:3a0:50b::4",
-      "kavlan-21": "2001:660:4406:6a0:50b::4",
-      "kavlan-3": "2001:660:4406:582:b::4",
-      "kavlan-4": "2001:660:4406:590:b::4",
-      "kavlan-5": "2001:660:4406:591:b::4",
-      "kavlan-6": "2001:660:4406:592:b::4",
-      "kavlan-7": "2001:660:4406:593:b::4",
-      "kavlan-8": "2001:660:4406:594:b::4",
-      "kavlan-9": "2001:660:4406:595:b::4"
+      "kavlan-1": "2001:660:4406:580:b:0::4",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::4",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::4",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::4",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::4",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::4",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::4",
+      "kavlan-2": "2001:660:4406:581:b:0::4",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::4",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::4",
+      "kavlan-3": "2001:660:4406:582:b:0::4",
+      "kavlan-4": "2001:660:4406:590:b:0::4",
+      "kavlan-5": "2001:660:4406:591:b:0::4",
+      "kavlan-6": "2001:660:4406:592:b:0::4",
+      "kavlan-7": "2001:660:4406:593:b:0::4",
+      "kavlan-8": "2001:660:4406:594:b:0::4",
+      "kavlan-9": "2001:660:4406:595:b:0::4"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.4",
-      "ip6": "2001:660:4406:500:b::4",
+      "ip6": "2001:660:4406:500:b:0::4",
       "kavlan": true,
       "mac": "24:6e:96:63:70:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-5.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-5.json
index 91818e01051..c7ea407ecf0 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-5.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-5.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::5",
-      "kavlan-11": "2001:660:4406:1a0:50b::5",
-      "kavlan-12": "2001:660:4406:2a0:50b::5",
-      "kavlan-13": "2001:660:4406:4a0:50b::5",
-      "kavlan-14": "2001:660:4406:5a0:50b::5",
-      "kavlan-16": "2001:660:4406:7a0:50b::5",
-      "kavlan-18": "2001:660:4406:8a0:50b::5",
-      "kavlan-2": "2001:660:4406:581:b::5",
-      "kavlan-20": "2001:660:4406:3a0:50b::5",
-      "kavlan-21": "2001:660:4406:6a0:50b::5",
-      "kavlan-3": "2001:660:4406:582:b::5",
-      "kavlan-4": "2001:660:4406:590:b::5",
-      "kavlan-5": "2001:660:4406:591:b::5",
-      "kavlan-6": "2001:660:4406:592:b::5",
-      "kavlan-7": "2001:660:4406:593:b::5",
-      "kavlan-8": "2001:660:4406:594:b::5",
-      "kavlan-9": "2001:660:4406:595:b::5"
+      "kavlan-1": "2001:660:4406:580:b:0::5",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::5",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::5",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::5",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::5",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::5",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::5",
+      "kavlan-2": "2001:660:4406:581:b:0::5",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::5",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::5",
+      "kavlan-3": "2001:660:4406:582:b:0::5",
+      "kavlan-4": "2001:660:4406:590:b:0::5",
+      "kavlan-5": "2001:660:4406:591:b:0::5",
+      "kavlan-6": "2001:660:4406:592:b:0::5",
+      "kavlan-7": "2001:660:4406:593:b:0::5",
+      "kavlan-8": "2001:660:4406:594:b:0::5",
+      "kavlan-9": "2001:660:4406:595:b:0::5"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.5",
-      "ip6": "2001:660:4406:500:b::5",
+      "ip6": "2001:660:4406:500:b:0::5",
       "kavlan": true,
       "mac": "24:6e:96:63:e1:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-6.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-6.json
index 4674281a38c..7193e03b846 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-6.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-6.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::6",
-      "kavlan-11": "2001:660:4406:1a0:50b::6",
-      "kavlan-12": "2001:660:4406:2a0:50b::6",
-      "kavlan-13": "2001:660:4406:4a0:50b::6",
-      "kavlan-14": "2001:660:4406:5a0:50b::6",
-      "kavlan-16": "2001:660:4406:7a0:50b::6",
-      "kavlan-18": "2001:660:4406:8a0:50b::6",
-      "kavlan-2": "2001:660:4406:581:b::6",
-      "kavlan-20": "2001:660:4406:3a0:50b::6",
-      "kavlan-21": "2001:660:4406:6a0:50b::6",
-      "kavlan-3": "2001:660:4406:582:b::6",
-      "kavlan-4": "2001:660:4406:590:b::6",
-      "kavlan-5": "2001:660:4406:591:b::6",
-      "kavlan-6": "2001:660:4406:592:b::6",
-      "kavlan-7": "2001:660:4406:593:b::6",
-      "kavlan-8": "2001:660:4406:594:b::6",
-      "kavlan-9": "2001:660:4406:595:b::6"
+      "kavlan-1": "2001:660:4406:580:b:0::6",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::6",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::6",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::6",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::6",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::6",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::6",
+      "kavlan-2": "2001:660:4406:581:b:0::6",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::6",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::6",
+      "kavlan-3": "2001:660:4406:582:b:0::6",
+      "kavlan-4": "2001:660:4406:590:b:0::6",
+      "kavlan-5": "2001:660:4406:591:b:0::6",
+      "kavlan-6": "2001:660:4406:592:b:0::6",
+      "kavlan-7": "2001:660:4406:593:b:0::6",
+      "kavlan-8": "2001:660:4406:594:b:0::6",
+      "kavlan-9": "2001:660:4406:595:b:0::6"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.6",
-      "ip6": "2001:660:4406:500:b::6",
+      "ip6": "2001:660:4406:500:b:0::6",
       "kavlan": true,
       "mac": "24:6e:96:63:d8:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-7.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-7.json
index 9dfce2b7338..91146be539a 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-7.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-7.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::7",
-      "kavlan-11": "2001:660:4406:1a0:50b::7",
-      "kavlan-12": "2001:660:4406:2a0:50b::7",
-      "kavlan-13": "2001:660:4406:4a0:50b::7",
-      "kavlan-14": "2001:660:4406:5a0:50b::7",
-      "kavlan-16": "2001:660:4406:7a0:50b::7",
-      "kavlan-18": "2001:660:4406:8a0:50b::7",
-      "kavlan-2": "2001:660:4406:581:b::7",
-      "kavlan-20": "2001:660:4406:3a0:50b::7",
-      "kavlan-21": "2001:660:4406:6a0:50b::7",
-      "kavlan-3": "2001:660:4406:582:b::7",
-      "kavlan-4": "2001:660:4406:590:b::7",
-      "kavlan-5": "2001:660:4406:591:b::7",
-      "kavlan-6": "2001:660:4406:592:b::7",
-      "kavlan-7": "2001:660:4406:593:b::7",
-      "kavlan-8": "2001:660:4406:594:b::7",
-      "kavlan-9": "2001:660:4406:595:b::7"
+      "kavlan-1": "2001:660:4406:580:b:0::7",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::7",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::7",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::7",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::7",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::7",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::7",
+      "kavlan-2": "2001:660:4406:581:b:0::7",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::7",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::7",
+      "kavlan-3": "2001:660:4406:582:b:0::7",
+      "kavlan-4": "2001:660:4406:590:b:0::7",
+      "kavlan-5": "2001:660:4406:591:b:0::7",
+      "kavlan-6": "2001:660:4406:592:b:0::7",
+      "kavlan-7": "2001:660:4406:593:b:0::7",
+      "kavlan-8": "2001:660:4406:594:b:0::7",
+      "kavlan-9": "2001:660:4406:595:b:0::7"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.7",
-      "ip6": "2001:660:4406:500:b::7",
+      "ip6": "2001:660:4406:500:b:0::7",
       "kavlan": true,
       "mac": "24:6e:96:63:ec:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-8.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-8.json
index 481df91d243..6a0f8a18c87 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-8.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-8.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::8",
-      "kavlan-11": "2001:660:4406:1a0:50b::8",
-      "kavlan-12": "2001:660:4406:2a0:50b::8",
-      "kavlan-13": "2001:660:4406:4a0:50b::8",
-      "kavlan-14": "2001:660:4406:5a0:50b::8",
-      "kavlan-16": "2001:660:4406:7a0:50b::8",
-      "kavlan-18": "2001:660:4406:8a0:50b::8",
-      "kavlan-2": "2001:660:4406:581:b::8",
-      "kavlan-20": "2001:660:4406:3a0:50b::8",
-      "kavlan-21": "2001:660:4406:6a0:50b::8",
-      "kavlan-3": "2001:660:4406:582:b::8",
-      "kavlan-4": "2001:660:4406:590:b::8",
-      "kavlan-5": "2001:660:4406:591:b::8",
-      "kavlan-6": "2001:660:4406:592:b::8",
-      "kavlan-7": "2001:660:4406:593:b::8",
-      "kavlan-8": "2001:660:4406:594:b::8",
-      "kavlan-9": "2001:660:4406:595:b::8"
+      "kavlan-1": "2001:660:4406:580:b:0::8",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::8",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::8",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::8",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::8",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::8",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::8",
+      "kavlan-2": "2001:660:4406:581:b:0::8",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::8",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::8",
+      "kavlan-3": "2001:660:4406:582:b:0::8",
+      "kavlan-4": "2001:660:4406:590:b:0::8",
+      "kavlan-5": "2001:660:4406:591:b:0::8",
+      "kavlan-6": "2001:660:4406:592:b:0::8",
+      "kavlan-7": "2001:660:4406:593:b:0::8",
+      "kavlan-8": "2001:660:4406:594:b:0::8",
+      "kavlan-9": "2001:660:4406:595:b:0::8"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.8",
-      "ip6": "2001:660:4406:500:b::8",
+      "ip6": "2001:660:4406:500:b:0::8",
       "kavlan": true,
       "mac": "24:6e:96:63:d7:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-9.json b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-9.json
index bb7a136dabc..296eea931db 100644
--- a/data/grid5000/sites/nancy/clusters/grele/nodes/grele-9.json
+++ b/data/grid5000/sites/nancy/clusters/grele/nodes/grele-9.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:b::9",
-      "kavlan-11": "2001:660:4406:1a0:50b::9",
-      "kavlan-12": "2001:660:4406:2a0:50b::9",
-      "kavlan-13": "2001:660:4406:4a0:50b::9",
-      "kavlan-14": "2001:660:4406:5a0:50b::9",
-      "kavlan-16": "2001:660:4406:7a0:50b::9",
-      "kavlan-18": "2001:660:4406:8a0:50b::9",
-      "kavlan-2": "2001:660:4406:581:b::9",
-      "kavlan-20": "2001:660:4406:3a0:50b::9",
-      "kavlan-21": "2001:660:4406:6a0:50b::9",
-      "kavlan-3": "2001:660:4406:582:b::9",
-      "kavlan-4": "2001:660:4406:590:b::9",
-      "kavlan-5": "2001:660:4406:591:b::9",
-      "kavlan-6": "2001:660:4406:592:b::9",
-      "kavlan-7": "2001:660:4406:593:b::9",
-      "kavlan-8": "2001:660:4406:594:b::9",
-      "kavlan-9": "2001:660:4406:595:b::9"
+      "kavlan-1": "2001:660:4406:580:b:0::9",
+      "kavlan-11": "2001:660:4406:1a0:50b:0::9",
+      "kavlan-12": "2001:660:4406:2a0:50b:0::9",
+      "kavlan-13": "2001:660:4406:4a0:50b:0::9",
+      "kavlan-14": "2001:660:4406:5a0:50b:0::9",
+      "kavlan-16": "2001:660:4406:7a0:50b:0::9",
+      "kavlan-18": "2001:660:4406:8a0:50b:0::9",
+      "kavlan-2": "2001:660:4406:581:b:0::9",
+      "kavlan-20": "2001:660:4406:3a0:50b:0::9",
+      "kavlan-21": "2001:660:4406:6a0:50b:0::9",
+      "kavlan-3": "2001:660:4406:582:b:0::9",
+      "kavlan-4": "2001:660:4406:590:b:0::9",
+      "kavlan-5": "2001:660:4406:591:b:0::9",
+      "kavlan-6": "2001:660:4406:592:b:0::9",
+      "kavlan-7": "2001:660:4406:593:b:0::9",
+      "kavlan-8": "2001:660:4406:594:b:0::9",
+      "kavlan-9": "2001:660:4406:595:b:0::9"
     }
   },
   "main_memory": {
@@ -94,7 +94,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.74.9",
-      "ip6": "2001:660:4406:500:b::9",
+      "ip6": "2001:660:4406:500:b:0::9",
       "kavlan": true,
       "mac": "24:6e:96:63:d7:48",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json
index ab2328bf833..47c2a2e1bbb 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-1.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a::1",
-      "kavlan-11": "2001:660:4406:1a0:50a::1",
-      "kavlan-12": "2001:660:4406:2a0:50a::1",
-      "kavlan-13": "2001:660:4406:4a0:50a::1",
-      "kavlan-14": "2001:660:4406:5a0:50a::1",
-      "kavlan-16": "2001:660:4406:7a0:50a::1",
-      "kavlan-18": "2001:660:4406:8a0:50a::1",
-      "kavlan-2": "2001:660:4406:581:a::1",
-      "kavlan-20": "2001:660:4406:3a0:50a::1",
-      "kavlan-21": "2001:660:4406:6a0:50a::1",
-      "kavlan-3": "2001:660:4406:582:a::1",
-      "kavlan-4": "2001:660:4406:590:a::1",
-      "kavlan-5": "2001:660:4406:591:a::1",
-      "kavlan-6": "2001:660:4406:592:a::1",
-      "kavlan-7": "2001:660:4406:593:a::1",
-      "kavlan-8": "2001:660:4406:594:a::1",
-      "kavlan-9": "2001:660:4406:595:a::1"
+      "kavlan-1": "2001:660:4406:580:a:0::1",
+      "kavlan-11": "2001:660:4406:1a0:50a:0::1",
+      "kavlan-12": "2001:660:4406:2a0:50a:0::1",
+      "kavlan-13": "2001:660:4406:4a0:50a:0::1",
+      "kavlan-14": "2001:660:4406:5a0:50a:0::1",
+      "kavlan-16": "2001:660:4406:7a0:50a:0::1",
+      "kavlan-18": "2001:660:4406:8a0:50a:0::1",
+      "kavlan-2": "2001:660:4406:581:a:0::1",
+      "kavlan-20": "2001:660:4406:3a0:50a:0::1",
+      "kavlan-21": "2001:660:4406:6a0:50a:0::1",
+      "kavlan-3": "2001:660:4406:582:a:0::1",
+      "kavlan-4": "2001:660:4406:590:a:0::1",
+      "kavlan-5": "2001:660:4406:591:a:0::1",
+      "kavlan-6": "2001:660:4406:592:a:0::1",
+      "kavlan-7": "2001:660:4406:593:a:0::1",
+      "kavlan-8": "2001:660:4406:594:a:0::1",
+      "kavlan-9": "2001:660:4406:595:a:0::1"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.1",
-      "ip6": "2001:660:4406:500:a::1",
+      "ip6": "2001:660:4406:500:a:0::1",
       "kavlan": true,
       "mac": "24:6e:96:16:65:60",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json
index 97549b060aa..10de1c283c2 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-2.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a::2",
-      "kavlan-11": "2001:660:4406:1a0:50a::2",
-      "kavlan-12": "2001:660:4406:2a0:50a::2",
-      "kavlan-13": "2001:660:4406:4a0:50a::2",
-      "kavlan-14": "2001:660:4406:5a0:50a::2",
-      "kavlan-16": "2001:660:4406:7a0:50a::2",
-      "kavlan-18": "2001:660:4406:8a0:50a::2",
-      "kavlan-2": "2001:660:4406:581:a::2",
-      "kavlan-20": "2001:660:4406:3a0:50a::2",
-      "kavlan-21": "2001:660:4406:6a0:50a::2",
-      "kavlan-3": "2001:660:4406:582:a::2",
-      "kavlan-4": "2001:660:4406:590:a::2",
-      "kavlan-5": "2001:660:4406:591:a::2",
-      "kavlan-6": "2001:660:4406:592:a::2",
-      "kavlan-7": "2001:660:4406:593:a::2",
-      "kavlan-8": "2001:660:4406:594:a::2",
-      "kavlan-9": "2001:660:4406:595:a::2"
+      "kavlan-1": "2001:660:4406:580:a:0::2",
+      "kavlan-11": "2001:660:4406:1a0:50a:0::2",
+      "kavlan-12": "2001:660:4406:2a0:50a:0::2",
+      "kavlan-13": "2001:660:4406:4a0:50a:0::2",
+      "kavlan-14": "2001:660:4406:5a0:50a:0::2",
+      "kavlan-16": "2001:660:4406:7a0:50a:0::2",
+      "kavlan-18": "2001:660:4406:8a0:50a:0::2",
+      "kavlan-2": "2001:660:4406:581:a:0::2",
+      "kavlan-20": "2001:660:4406:3a0:50a:0::2",
+      "kavlan-21": "2001:660:4406:6a0:50a:0::2",
+      "kavlan-3": "2001:660:4406:582:a:0::2",
+      "kavlan-4": "2001:660:4406:590:a:0::2",
+      "kavlan-5": "2001:660:4406:591:a:0::2",
+      "kavlan-6": "2001:660:4406:592:a:0::2",
+      "kavlan-7": "2001:660:4406:593:a:0::2",
+      "kavlan-8": "2001:660:4406:594:a:0::2",
+      "kavlan-9": "2001:660:4406:595:a:0::2"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.2",
-      "ip6": "2001:660:4406:500:a::2",
+      "ip6": "2001:660:4406:500:a:0::2",
       "kavlan": true,
       "mac": "24:6e:96:15:46:e8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json
index 7453ee8f378..c09945f2c63 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-3.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a::3",
-      "kavlan-11": "2001:660:4406:1a0:50a::3",
-      "kavlan-12": "2001:660:4406:2a0:50a::3",
-      "kavlan-13": "2001:660:4406:4a0:50a::3",
-      "kavlan-14": "2001:660:4406:5a0:50a::3",
-      "kavlan-16": "2001:660:4406:7a0:50a::3",
-      "kavlan-18": "2001:660:4406:8a0:50a::3",
-      "kavlan-2": "2001:660:4406:581:a::3",
-      "kavlan-20": "2001:660:4406:3a0:50a::3",
-      "kavlan-21": "2001:660:4406:6a0:50a::3",
-      "kavlan-3": "2001:660:4406:582:a::3",
-      "kavlan-4": "2001:660:4406:590:a::3",
-      "kavlan-5": "2001:660:4406:591:a::3",
-      "kavlan-6": "2001:660:4406:592:a::3",
-      "kavlan-7": "2001:660:4406:593:a::3",
-      "kavlan-8": "2001:660:4406:594:a::3",
-      "kavlan-9": "2001:660:4406:595:a::3"
+      "kavlan-1": "2001:660:4406:580:a:0::3",
+      "kavlan-11": "2001:660:4406:1a0:50a:0::3",
+      "kavlan-12": "2001:660:4406:2a0:50a:0::3",
+      "kavlan-13": "2001:660:4406:4a0:50a:0::3",
+      "kavlan-14": "2001:660:4406:5a0:50a:0::3",
+      "kavlan-16": "2001:660:4406:7a0:50a:0::3",
+      "kavlan-18": "2001:660:4406:8a0:50a:0::3",
+      "kavlan-2": "2001:660:4406:581:a:0::3",
+      "kavlan-20": "2001:660:4406:3a0:50a:0::3",
+      "kavlan-21": "2001:660:4406:6a0:50a:0::3",
+      "kavlan-3": "2001:660:4406:582:a:0::3",
+      "kavlan-4": "2001:660:4406:590:a:0::3",
+      "kavlan-5": "2001:660:4406:591:a:0::3",
+      "kavlan-6": "2001:660:4406:592:a:0::3",
+      "kavlan-7": "2001:660:4406:593:a:0::3",
+      "kavlan-8": "2001:660:4406:594:a:0::3",
+      "kavlan-9": "2001:660:4406:595:a:0::3"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.3",
-      "ip6": "2001:660:4406:500:a::3",
+      "ip6": "2001:660:4406:500:a:0::3",
       "kavlan": true,
       "mac": "24:6e:96:15:46:88",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json
index f776b8c4a30..496cbe2311b 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-4.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a::4",
-      "kavlan-11": "2001:660:4406:1a0:50a::4",
-      "kavlan-12": "2001:660:4406:2a0:50a::4",
-      "kavlan-13": "2001:660:4406:4a0:50a::4",
-      "kavlan-14": "2001:660:4406:5a0:50a::4",
-      "kavlan-16": "2001:660:4406:7a0:50a::4",
-      "kavlan-18": "2001:660:4406:8a0:50a::4",
-      "kavlan-2": "2001:660:4406:581:a::4",
-      "kavlan-20": "2001:660:4406:3a0:50a::4",
-      "kavlan-21": "2001:660:4406:6a0:50a::4",
-      "kavlan-3": "2001:660:4406:582:a::4",
-      "kavlan-4": "2001:660:4406:590:a::4",
-      "kavlan-5": "2001:660:4406:591:a::4",
-      "kavlan-6": "2001:660:4406:592:a::4",
-      "kavlan-7": "2001:660:4406:593:a::4",
-      "kavlan-8": "2001:660:4406:594:a::4",
-      "kavlan-9": "2001:660:4406:595:a::4"
+      "kavlan-1": "2001:660:4406:580:a:0::4",
+      "kavlan-11": "2001:660:4406:1a0:50a:0::4",
+      "kavlan-12": "2001:660:4406:2a0:50a:0::4",
+      "kavlan-13": "2001:660:4406:4a0:50a:0::4",
+      "kavlan-14": "2001:660:4406:5a0:50a:0::4",
+      "kavlan-16": "2001:660:4406:7a0:50a:0::4",
+      "kavlan-18": "2001:660:4406:8a0:50a:0::4",
+      "kavlan-2": "2001:660:4406:581:a:0::4",
+      "kavlan-20": "2001:660:4406:3a0:50a:0::4",
+      "kavlan-21": "2001:660:4406:6a0:50a:0::4",
+      "kavlan-3": "2001:660:4406:582:a:0::4",
+      "kavlan-4": "2001:660:4406:590:a:0::4",
+      "kavlan-5": "2001:660:4406:591:a:0::4",
+      "kavlan-6": "2001:660:4406:592:a:0::4",
+      "kavlan-7": "2001:660:4406:593:a:0::4",
+      "kavlan-8": "2001:660:4406:594:a:0::4",
+      "kavlan-9": "2001:660:4406:595:a:0::4"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.4",
-      "ip6": "2001:660:4406:500:a::4",
+      "ip6": "2001:660:4406:500:a:0::4",
       "kavlan": true,
       "mac": "24:6e:96:16:41:68",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json
index c8c54b9b655..74bae2f61ee 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-5.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a::5",
-      "kavlan-11": "2001:660:4406:1a0:50a::5",
-      "kavlan-12": "2001:660:4406:2a0:50a::5",
-      "kavlan-13": "2001:660:4406:4a0:50a::5",
-      "kavlan-14": "2001:660:4406:5a0:50a::5",
-      "kavlan-16": "2001:660:4406:7a0:50a::5",
-      "kavlan-18": "2001:660:4406:8a0:50a::5",
-      "kavlan-2": "2001:660:4406:581:a::5",
-      "kavlan-20": "2001:660:4406:3a0:50a::5",
-      "kavlan-21": "2001:660:4406:6a0:50a::5",
-      "kavlan-3": "2001:660:4406:582:a::5",
-      "kavlan-4": "2001:660:4406:590:a::5",
-      "kavlan-5": "2001:660:4406:591:a::5",
-      "kavlan-6": "2001:660:4406:592:a::5",
-      "kavlan-7": "2001:660:4406:593:a::5",
-      "kavlan-8": "2001:660:4406:594:a::5",
-      "kavlan-9": "2001:660:4406:595:a::5"
+      "kavlan-1": "2001:660:4406:580:a:0::5",
+      "kavlan-11": "2001:660:4406:1a0:50a:0::5",
+      "kavlan-12": "2001:660:4406:2a0:50a:0::5",
+      "kavlan-13": "2001:660:4406:4a0:50a:0::5",
+      "kavlan-14": "2001:660:4406:5a0:50a:0::5",
+      "kavlan-16": "2001:660:4406:7a0:50a:0::5",
+      "kavlan-18": "2001:660:4406:8a0:50a:0::5",
+      "kavlan-2": "2001:660:4406:581:a:0::5",
+      "kavlan-20": "2001:660:4406:3a0:50a:0::5",
+      "kavlan-21": "2001:660:4406:6a0:50a:0::5",
+      "kavlan-3": "2001:660:4406:582:a:0::5",
+      "kavlan-4": "2001:660:4406:590:a:0::5",
+      "kavlan-5": "2001:660:4406:591:a:0::5",
+      "kavlan-6": "2001:660:4406:592:a:0::5",
+      "kavlan-7": "2001:660:4406:593:a:0::5",
+      "kavlan-8": "2001:660:4406:594:a:0::5",
+      "kavlan-9": "2001:660:4406:595:a:0::5"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.5",
-      "ip6": "2001:660:4406:500:a::5",
+      "ip6": "2001:660:4406:500:a:0::5",
       "kavlan": true,
       "mac": "24:6e:96:16:5c:e8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json
index c52a07c7172..2cb6868eb03 100644
--- a/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json
+++ b/data/grid5000/sites/nancy/clusters/grimani/nodes/grimani-6.json
@@ -61,23 +61,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:a::6",
-      "kavlan-11": "2001:660:4406:1a0:50a::6",
-      "kavlan-12": "2001:660:4406:2a0:50a::6",
-      "kavlan-13": "2001:660:4406:4a0:50a::6",
-      "kavlan-14": "2001:660:4406:5a0:50a::6",
-      "kavlan-16": "2001:660:4406:7a0:50a::6",
-      "kavlan-18": "2001:660:4406:8a0:50a::6",
-      "kavlan-2": "2001:660:4406:581:a::6",
-      "kavlan-20": "2001:660:4406:3a0:50a::6",
-      "kavlan-21": "2001:660:4406:6a0:50a::6",
-      "kavlan-3": "2001:660:4406:582:a::6",
-      "kavlan-4": "2001:660:4406:590:a::6",
-      "kavlan-5": "2001:660:4406:591:a::6",
-      "kavlan-6": "2001:660:4406:592:a::6",
-      "kavlan-7": "2001:660:4406:593:a::6",
-      "kavlan-8": "2001:660:4406:594:a::6",
-      "kavlan-9": "2001:660:4406:595:a::6"
+      "kavlan-1": "2001:660:4406:580:a:0::6",
+      "kavlan-11": "2001:660:4406:1a0:50a:0::6",
+      "kavlan-12": "2001:660:4406:2a0:50a:0::6",
+      "kavlan-13": "2001:660:4406:4a0:50a:0::6",
+      "kavlan-14": "2001:660:4406:5a0:50a:0::6",
+      "kavlan-16": "2001:660:4406:7a0:50a:0::6",
+      "kavlan-18": "2001:660:4406:8a0:50a:0::6",
+      "kavlan-2": "2001:660:4406:581:a:0::6",
+      "kavlan-20": "2001:660:4406:3a0:50a:0::6",
+      "kavlan-21": "2001:660:4406:6a0:50a:0::6",
+      "kavlan-3": "2001:660:4406:582:a:0::6",
+      "kavlan-4": "2001:660:4406:590:a:0::6",
+      "kavlan-5": "2001:660:4406:591:a:0::6",
+      "kavlan-6": "2001:660:4406:592:a:0::6",
+      "kavlan-7": "2001:660:4406:593:a:0::6",
+      "kavlan-8": "2001:660:4406:594:a:0::6",
+      "kavlan-9": "2001:660:4406:595:a:0::6"
     }
   },
   "main_memory": {
@@ -95,7 +95,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.73.6",
-      "ip6": "2001:660:4406:500:a::6",
+      "ip6": "2001:660:4406:500:a:0::6",
       "kavlan": true,
       "mac": "24:6e:96:16:5c:30",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-1.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-1.json
index 0a667131e8e..c27637fa177 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-1.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-1.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8::1",
-      "kavlan-11": "2001:660:4406:1a0:508::1",
-      "kavlan-12": "2001:660:4406:2a0:508::1",
-      "kavlan-13": "2001:660:4406:4a0:508::1",
-      "kavlan-14": "2001:660:4406:5a0:508::1",
-      "kavlan-16": "2001:660:4406:7a0:508::1",
-      "kavlan-18": "2001:660:4406:8a0:508::1",
-      "kavlan-2": "2001:660:4406:581:8::1",
-      "kavlan-20": "2001:660:4406:3a0:508::1",
-      "kavlan-21": "2001:660:4406:6a0:508::1",
-      "kavlan-3": "2001:660:4406:582:8::1",
-      "kavlan-4": "2001:660:4406:590:8::1",
-      "kavlan-5": "2001:660:4406:591:8::1",
-      "kavlan-6": "2001:660:4406:592:8::1",
-      "kavlan-7": "2001:660:4406:593:8::1",
-      "kavlan-8": "2001:660:4406:594:8::1",
-      "kavlan-9": "2001:660:4406:595:8::1"
+      "kavlan-1": "2001:660:4406:580:8:0::1",
+      "kavlan-11": "2001:660:4406:1a0:508:0::1",
+      "kavlan-12": "2001:660:4406:2a0:508:0::1",
+      "kavlan-13": "2001:660:4406:4a0:508:0::1",
+      "kavlan-14": "2001:660:4406:5a0:508:0::1",
+      "kavlan-16": "2001:660:4406:7a0:508:0::1",
+      "kavlan-18": "2001:660:4406:8a0:508:0::1",
+      "kavlan-2": "2001:660:4406:581:8:0::1",
+      "kavlan-20": "2001:660:4406:3a0:508:0::1",
+      "kavlan-21": "2001:660:4406:6a0:508:0::1",
+      "kavlan-3": "2001:660:4406:582:8:0::1",
+      "kavlan-4": "2001:660:4406:590:8:0::1",
+      "kavlan-5": "2001:660:4406:591:8:0::1",
+      "kavlan-6": "2001:660:4406:592:8:0::1",
+      "kavlan-7": "2001:660:4406:593:8:0::1",
+      "kavlan-8": "2001:660:4406:594:8:0::1",
+      "kavlan-9": "2001:660:4406:595:8:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:8:1::1",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.1",
-      "ip6": "2001:660:4406:500:8::1",
+      "ip6": "2001:660:4406:500:8:0::1",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:c8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-2.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-2.json
index 40a3a6b2d22..d05d556ad8f 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-2.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-2.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8::2",
-      "kavlan-11": "2001:660:4406:1a0:508::2",
-      "kavlan-12": "2001:660:4406:2a0:508::2",
-      "kavlan-13": "2001:660:4406:4a0:508::2",
-      "kavlan-14": "2001:660:4406:5a0:508::2",
-      "kavlan-16": "2001:660:4406:7a0:508::2",
-      "kavlan-18": "2001:660:4406:8a0:508::2",
-      "kavlan-2": "2001:660:4406:581:8::2",
-      "kavlan-20": "2001:660:4406:3a0:508::2",
-      "kavlan-21": "2001:660:4406:6a0:508::2",
-      "kavlan-3": "2001:660:4406:582:8::2",
-      "kavlan-4": "2001:660:4406:590:8::2",
-      "kavlan-5": "2001:660:4406:591:8::2",
-      "kavlan-6": "2001:660:4406:592:8::2",
-      "kavlan-7": "2001:660:4406:593:8::2",
-      "kavlan-8": "2001:660:4406:594:8::2",
-      "kavlan-9": "2001:660:4406:595:8::2"
+      "kavlan-1": "2001:660:4406:580:8:0::2",
+      "kavlan-11": "2001:660:4406:1a0:508:0::2",
+      "kavlan-12": "2001:660:4406:2a0:508:0::2",
+      "kavlan-13": "2001:660:4406:4a0:508:0::2",
+      "kavlan-14": "2001:660:4406:5a0:508:0::2",
+      "kavlan-16": "2001:660:4406:7a0:508:0::2",
+      "kavlan-18": "2001:660:4406:8a0:508:0::2",
+      "kavlan-2": "2001:660:4406:581:8:0::2",
+      "kavlan-20": "2001:660:4406:3a0:508:0::2",
+      "kavlan-21": "2001:660:4406:6a0:508:0::2",
+      "kavlan-3": "2001:660:4406:582:8:0::2",
+      "kavlan-4": "2001:660:4406:590:8:0::2",
+      "kavlan-5": "2001:660:4406:591:8:0::2",
+      "kavlan-6": "2001:660:4406:592:8:0::2",
+      "kavlan-7": "2001:660:4406:593:8:0::2",
+      "kavlan-8": "2001:660:4406:594:8:0::2",
+      "kavlan-9": "2001:660:4406:595:8:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:8:1::2",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.2",
-      "ip6": "2001:660:4406:500:8::2",
+      "ip6": "2001:660:4406:500:8:0::2",
       "kavlan": true,
       "mac": "24:6e:96:03:24:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-3.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-3.json
index 764fea75963..43ea74194a7 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-3.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-3.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8::3",
-      "kavlan-11": "2001:660:4406:1a0:508::3",
-      "kavlan-12": "2001:660:4406:2a0:508::3",
-      "kavlan-13": "2001:660:4406:4a0:508::3",
-      "kavlan-14": "2001:660:4406:5a0:508::3",
-      "kavlan-16": "2001:660:4406:7a0:508::3",
-      "kavlan-18": "2001:660:4406:8a0:508::3",
-      "kavlan-2": "2001:660:4406:581:8::3",
-      "kavlan-20": "2001:660:4406:3a0:508::3",
-      "kavlan-21": "2001:660:4406:6a0:508::3",
-      "kavlan-3": "2001:660:4406:582:8::3",
-      "kavlan-4": "2001:660:4406:590:8::3",
-      "kavlan-5": "2001:660:4406:591:8::3",
-      "kavlan-6": "2001:660:4406:592:8::3",
-      "kavlan-7": "2001:660:4406:593:8::3",
-      "kavlan-8": "2001:660:4406:594:8::3",
-      "kavlan-9": "2001:660:4406:595:8::3"
+      "kavlan-1": "2001:660:4406:580:8:0::3",
+      "kavlan-11": "2001:660:4406:1a0:508:0::3",
+      "kavlan-12": "2001:660:4406:2a0:508:0::3",
+      "kavlan-13": "2001:660:4406:4a0:508:0::3",
+      "kavlan-14": "2001:660:4406:5a0:508:0::3",
+      "kavlan-16": "2001:660:4406:7a0:508:0::3",
+      "kavlan-18": "2001:660:4406:8a0:508:0::3",
+      "kavlan-2": "2001:660:4406:581:8:0::3",
+      "kavlan-20": "2001:660:4406:3a0:508:0::3",
+      "kavlan-21": "2001:660:4406:6a0:508:0::3",
+      "kavlan-3": "2001:660:4406:582:8:0::3",
+      "kavlan-4": "2001:660:4406:590:8:0::3",
+      "kavlan-5": "2001:660:4406:591:8:0::3",
+      "kavlan-6": "2001:660:4406:592:8:0::3",
+      "kavlan-7": "2001:660:4406:593:8:0::3",
+      "kavlan-8": "2001:660:4406:594:8:0::3",
+      "kavlan-9": "2001:660:4406:595:8:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:8:1::3",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.3",
-      "ip6": "2001:660:4406:500:8::3",
+      "ip6": "2001:660:4406:500:8:0::3",
       "kavlan": true,
       "mac": "24:6e:96:03:20:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-4.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-4.json
index 49eea4d11b7..1f83b31eb61 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-4.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-4.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8::4",
-      "kavlan-11": "2001:660:4406:1a0:508::4",
-      "kavlan-12": "2001:660:4406:2a0:508::4",
-      "kavlan-13": "2001:660:4406:4a0:508::4",
-      "kavlan-14": "2001:660:4406:5a0:508::4",
-      "kavlan-16": "2001:660:4406:7a0:508::4",
-      "kavlan-18": "2001:660:4406:8a0:508::4",
-      "kavlan-2": "2001:660:4406:581:8::4",
-      "kavlan-20": "2001:660:4406:3a0:508::4",
-      "kavlan-21": "2001:660:4406:6a0:508::4",
-      "kavlan-3": "2001:660:4406:582:8::4",
-      "kavlan-4": "2001:660:4406:590:8::4",
-      "kavlan-5": "2001:660:4406:591:8::4",
-      "kavlan-6": "2001:660:4406:592:8::4",
-      "kavlan-7": "2001:660:4406:593:8::4",
-      "kavlan-8": "2001:660:4406:594:8::4",
-      "kavlan-9": "2001:660:4406:595:8::4"
+      "kavlan-1": "2001:660:4406:580:8:0::4",
+      "kavlan-11": "2001:660:4406:1a0:508:0::4",
+      "kavlan-12": "2001:660:4406:2a0:508:0::4",
+      "kavlan-13": "2001:660:4406:4a0:508:0::4",
+      "kavlan-14": "2001:660:4406:5a0:508:0::4",
+      "kavlan-16": "2001:660:4406:7a0:508:0::4",
+      "kavlan-18": "2001:660:4406:8a0:508:0::4",
+      "kavlan-2": "2001:660:4406:581:8:0::4",
+      "kavlan-20": "2001:660:4406:3a0:508:0::4",
+      "kavlan-21": "2001:660:4406:6a0:508:0::4",
+      "kavlan-3": "2001:660:4406:582:8:0::4",
+      "kavlan-4": "2001:660:4406:590:8:0::4",
+      "kavlan-5": "2001:660:4406:591:8:0::4",
+      "kavlan-6": "2001:660:4406:592:8:0::4",
+      "kavlan-7": "2001:660:4406:593:8:0::4",
+      "kavlan-8": "2001:660:4406:594:8:0::4",
+      "kavlan-9": "2001:660:4406:595:8:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:8:1::4",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.4",
-      "ip6": "2001:660:4406:500:8::4",
+      "ip6": "2001:660:4406:500:8:0::4",
       "kavlan": true,
       "mac": "24:6e:96:02:a7:c8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-5.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-5.json
index 8fe5bcb3a56..76220bad80a 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-5.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-5.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8::5",
-      "kavlan-11": "2001:660:4406:1a0:508::5",
-      "kavlan-12": "2001:660:4406:2a0:508::5",
-      "kavlan-13": "2001:660:4406:4a0:508::5",
-      "kavlan-14": "2001:660:4406:5a0:508::5",
-      "kavlan-16": "2001:660:4406:7a0:508::5",
-      "kavlan-18": "2001:660:4406:8a0:508::5",
-      "kavlan-2": "2001:660:4406:581:8::5",
-      "kavlan-20": "2001:660:4406:3a0:508::5",
-      "kavlan-21": "2001:660:4406:6a0:508::5",
-      "kavlan-3": "2001:660:4406:582:8::5",
-      "kavlan-4": "2001:660:4406:590:8::5",
-      "kavlan-5": "2001:660:4406:591:8::5",
-      "kavlan-6": "2001:660:4406:592:8::5",
-      "kavlan-7": "2001:660:4406:593:8::5",
-      "kavlan-8": "2001:660:4406:594:8::5",
-      "kavlan-9": "2001:660:4406:595:8::5"
+      "kavlan-1": "2001:660:4406:580:8:0::5",
+      "kavlan-11": "2001:660:4406:1a0:508:0::5",
+      "kavlan-12": "2001:660:4406:2a0:508:0::5",
+      "kavlan-13": "2001:660:4406:4a0:508:0::5",
+      "kavlan-14": "2001:660:4406:5a0:508:0::5",
+      "kavlan-16": "2001:660:4406:7a0:508:0::5",
+      "kavlan-18": "2001:660:4406:8a0:508:0::5",
+      "kavlan-2": "2001:660:4406:581:8:0::5",
+      "kavlan-20": "2001:660:4406:3a0:508:0::5",
+      "kavlan-21": "2001:660:4406:6a0:508:0::5",
+      "kavlan-3": "2001:660:4406:582:8:0::5",
+      "kavlan-4": "2001:660:4406:590:8:0::5",
+      "kavlan-5": "2001:660:4406:591:8:0::5",
+      "kavlan-6": "2001:660:4406:592:8:0::5",
+      "kavlan-7": "2001:660:4406:593:8:0::5",
+      "kavlan-8": "2001:660:4406:594:8:0::5",
+      "kavlan-9": "2001:660:4406:595:8:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:8:1::5",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.5",
-      "ip6": "2001:660:4406:500:8::5",
+      "ip6": "2001:660:4406:500:8:0::5",
       "kavlan": true,
       "mac": "24:6e:96:02:96:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-6.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-6.json
index d2c0272a53a..5904c7e0c4b 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-6.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-6.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8::6",
-      "kavlan-11": "2001:660:4406:1a0:508::6",
-      "kavlan-12": "2001:660:4406:2a0:508::6",
-      "kavlan-13": "2001:660:4406:4a0:508::6",
-      "kavlan-14": "2001:660:4406:5a0:508::6",
-      "kavlan-16": "2001:660:4406:7a0:508::6",
-      "kavlan-18": "2001:660:4406:8a0:508::6",
-      "kavlan-2": "2001:660:4406:581:8::6",
-      "kavlan-20": "2001:660:4406:3a0:508::6",
-      "kavlan-21": "2001:660:4406:6a0:508::6",
-      "kavlan-3": "2001:660:4406:582:8::6",
-      "kavlan-4": "2001:660:4406:590:8::6",
-      "kavlan-5": "2001:660:4406:591:8::6",
-      "kavlan-6": "2001:660:4406:592:8::6",
-      "kavlan-7": "2001:660:4406:593:8::6",
-      "kavlan-8": "2001:660:4406:594:8::6",
-      "kavlan-9": "2001:660:4406:595:8::6"
+      "kavlan-1": "2001:660:4406:580:8:0::6",
+      "kavlan-11": "2001:660:4406:1a0:508:0::6",
+      "kavlan-12": "2001:660:4406:2a0:508:0::6",
+      "kavlan-13": "2001:660:4406:4a0:508:0::6",
+      "kavlan-14": "2001:660:4406:5a0:508:0::6",
+      "kavlan-16": "2001:660:4406:7a0:508:0::6",
+      "kavlan-18": "2001:660:4406:8a0:508:0::6",
+      "kavlan-2": "2001:660:4406:581:8:0::6",
+      "kavlan-20": "2001:660:4406:3a0:508:0::6",
+      "kavlan-21": "2001:660:4406:6a0:508:0::6",
+      "kavlan-3": "2001:660:4406:582:8:0::6",
+      "kavlan-4": "2001:660:4406:590:8:0::6",
+      "kavlan-5": "2001:660:4406:591:8:0::6",
+      "kavlan-6": "2001:660:4406:592:8:0::6",
+      "kavlan-7": "2001:660:4406:593:8:0::6",
+      "kavlan-8": "2001:660:4406:594:8:0::6",
+      "kavlan-9": "2001:660:4406:595:8:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:8:1::6",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.6",
-      "ip6": "2001:660:4406:500:8::6",
+      "ip6": "2001:660:4406:500:8:0::6",
       "kavlan": true,
       "mac": "24:6e:96:02:a3:88",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-7.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-7.json
index 4f089b863e9..8563da3304f 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-7.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-7.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8::7",
-      "kavlan-11": "2001:660:4406:1a0:508::7",
-      "kavlan-12": "2001:660:4406:2a0:508::7",
-      "kavlan-13": "2001:660:4406:4a0:508::7",
-      "kavlan-14": "2001:660:4406:5a0:508::7",
-      "kavlan-16": "2001:660:4406:7a0:508::7",
-      "kavlan-18": "2001:660:4406:8a0:508::7",
-      "kavlan-2": "2001:660:4406:581:8::7",
-      "kavlan-20": "2001:660:4406:3a0:508::7",
-      "kavlan-21": "2001:660:4406:6a0:508::7",
-      "kavlan-3": "2001:660:4406:582:8::7",
-      "kavlan-4": "2001:660:4406:590:8::7",
-      "kavlan-5": "2001:660:4406:591:8::7",
-      "kavlan-6": "2001:660:4406:592:8::7",
-      "kavlan-7": "2001:660:4406:593:8::7",
-      "kavlan-8": "2001:660:4406:594:8::7",
-      "kavlan-9": "2001:660:4406:595:8::7"
+      "kavlan-1": "2001:660:4406:580:8:0::7",
+      "kavlan-11": "2001:660:4406:1a0:508:0::7",
+      "kavlan-12": "2001:660:4406:2a0:508:0::7",
+      "kavlan-13": "2001:660:4406:4a0:508:0::7",
+      "kavlan-14": "2001:660:4406:5a0:508:0::7",
+      "kavlan-16": "2001:660:4406:7a0:508:0::7",
+      "kavlan-18": "2001:660:4406:8a0:508:0::7",
+      "kavlan-2": "2001:660:4406:581:8:0::7",
+      "kavlan-20": "2001:660:4406:3a0:508:0::7",
+      "kavlan-21": "2001:660:4406:6a0:508:0::7",
+      "kavlan-3": "2001:660:4406:582:8:0::7",
+      "kavlan-4": "2001:660:4406:590:8:0::7",
+      "kavlan-5": "2001:660:4406:591:8:0::7",
+      "kavlan-6": "2001:660:4406:592:8:0::7",
+      "kavlan-7": "2001:660:4406:593:8:0::7",
+      "kavlan-8": "2001:660:4406:594:8:0::7",
+      "kavlan-9": "2001:660:4406:595:8:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:8:1::7",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.7",
-      "ip6": "2001:660:4406:500:8::7",
+      "ip6": "2001:660:4406:500:8:0::7",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-8.json b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-8.json
index 3ecc782741c..2caa976d606 100644
--- a/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-8.json
+++ b/data/grid5000/sites/nancy/clusters/grimoire/nodes/grimoire-8.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:8::8",
-      "kavlan-11": "2001:660:4406:1a0:508::8",
-      "kavlan-12": "2001:660:4406:2a0:508::8",
-      "kavlan-13": "2001:660:4406:4a0:508::8",
-      "kavlan-14": "2001:660:4406:5a0:508::8",
-      "kavlan-16": "2001:660:4406:7a0:508::8",
-      "kavlan-18": "2001:660:4406:8a0:508::8",
-      "kavlan-2": "2001:660:4406:581:8::8",
-      "kavlan-20": "2001:660:4406:3a0:508::8",
-      "kavlan-21": "2001:660:4406:6a0:508::8",
-      "kavlan-3": "2001:660:4406:582:8::8",
-      "kavlan-4": "2001:660:4406:590:8::8",
-      "kavlan-5": "2001:660:4406:591:8::8",
-      "kavlan-6": "2001:660:4406:592:8::8",
-      "kavlan-7": "2001:660:4406:593:8::8",
-      "kavlan-8": "2001:660:4406:594:8::8",
-      "kavlan-9": "2001:660:4406:595:8::8"
+      "kavlan-1": "2001:660:4406:580:8:0::8",
+      "kavlan-11": "2001:660:4406:1a0:508:0::8",
+      "kavlan-12": "2001:660:4406:2a0:508:0::8",
+      "kavlan-13": "2001:660:4406:4a0:508:0::8",
+      "kavlan-14": "2001:660:4406:5a0:508:0::8",
+      "kavlan-16": "2001:660:4406:7a0:508:0::8",
+      "kavlan-18": "2001:660:4406:8a0:508:0::8",
+      "kavlan-2": "2001:660:4406:581:8:0::8",
+      "kavlan-20": "2001:660:4406:3a0:508:0::8",
+      "kavlan-21": "2001:660:4406:6a0:508:0::8",
+      "kavlan-3": "2001:660:4406:582:8:0::8",
+      "kavlan-4": "2001:660:4406:590:8:0::8",
+      "kavlan-5": "2001:660:4406:591:8:0::8",
+      "kavlan-6": "2001:660:4406:592:8:0::8",
+      "kavlan-7": "2001:660:4406:593:8:0::8",
+      "kavlan-8": "2001:660:4406:594:8:0::8",
+      "kavlan-9": "2001:660:4406:595:8:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:8:1::8",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.71.8",
-      "ip6": "2001:660:4406:500:8::8",
+      "ip6": "2001:660:4406:500:8:0::8",
       "kavlan": true,
       "mac": "24:6e:96:02:a0:88",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-1.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-1.json
index da7d1323ee0..b7064d747f7 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-1.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-1.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::1",
-      "kavlan-11": "2001:660:4406:1a0:509::1",
-      "kavlan-12": "2001:660:4406:2a0:509::1",
-      "kavlan-13": "2001:660:4406:4a0:509::1",
-      "kavlan-14": "2001:660:4406:5a0:509::1",
-      "kavlan-16": "2001:660:4406:7a0:509::1",
-      "kavlan-18": "2001:660:4406:8a0:509::1",
-      "kavlan-2": "2001:660:4406:581:9::1",
-      "kavlan-20": "2001:660:4406:3a0:509::1",
-      "kavlan-21": "2001:660:4406:6a0:509::1",
-      "kavlan-3": "2001:660:4406:582:9::1",
-      "kavlan-4": "2001:660:4406:590:9::1",
-      "kavlan-5": "2001:660:4406:591:9::1",
-      "kavlan-6": "2001:660:4406:592:9::1",
-      "kavlan-7": "2001:660:4406:593:9::1",
-      "kavlan-8": "2001:660:4406:594:9::1",
-      "kavlan-9": "2001:660:4406:595:9::1"
+      "kavlan-1": "2001:660:4406:580:9:0::1",
+      "kavlan-11": "2001:660:4406:1a0:509:0::1",
+      "kavlan-12": "2001:660:4406:2a0:509:0::1",
+      "kavlan-13": "2001:660:4406:4a0:509:0::1",
+      "kavlan-14": "2001:660:4406:5a0:509:0::1",
+      "kavlan-16": "2001:660:4406:7a0:509:0::1",
+      "kavlan-18": "2001:660:4406:8a0:509:0::1",
+      "kavlan-2": "2001:660:4406:581:9:0::1",
+      "kavlan-20": "2001:660:4406:3a0:509:0::1",
+      "kavlan-21": "2001:660:4406:6a0:509:0::1",
+      "kavlan-3": "2001:660:4406:582:9:0::1",
+      "kavlan-4": "2001:660:4406:590:9:0::1",
+      "kavlan-5": "2001:660:4406:591:9:0::1",
+      "kavlan-6": "2001:660:4406:592:9:0::1",
+      "kavlan-7": "2001:660:4406:593:9:0::1",
+      "kavlan-8": "2001:660:4406:594:9:0::1",
+      "kavlan-9": "2001:660:4406:595:9:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::1",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.1",
-      "ip6": "2001:660:4406:500:9::1",
+      "ip6": "2001:660:4406:500:9:0::1",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:60",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-10.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-10.json
index 3aa799f206d..86229e375d3 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-10.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-10.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::a",
-      "kavlan-11": "2001:660:4406:1a0:509::a",
-      "kavlan-12": "2001:660:4406:2a0:509::a",
-      "kavlan-13": "2001:660:4406:4a0:509::a",
-      "kavlan-14": "2001:660:4406:5a0:509::a",
-      "kavlan-16": "2001:660:4406:7a0:509::a",
-      "kavlan-18": "2001:660:4406:8a0:509::a",
-      "kavlan-2": "2001:660:4406:581:9::a",
-      "kavlan-20": "2001:660:4406:3a0:509::a",
-      "kavlan-21": "2001:660:4406:6a0:509::a",
-      "kavlan-3": "2001:660:4406:582:9::a",
-      "kavlan-4": "2001:660:4406:590:9::a",
-      "kavlan-5": "2001:660:4406:591:9::a",
-      "kavlan-6": "2001:660:4406:592:9::a",
-      "kavlan-7": "2001:660:4406:593:9::a",
-      "kavlan-8": "2001:660:4406:594:9::a",
-      "kavlan-9": "2001:660:4406:595:9::a"
+      "kavlan-1": "2001:660:4406:580:9:0::a",
+      "kavlan-11": "2001:660:4406:1a0:509:0::a",
+      "kavlan-12": "2001:660:4406:2a0:509:0::a",
+      "kavlan-13": "2001:660:4406:4a0:509:0::a",
+      "kavlan-14": "2001:660:4406:5a0:509:0::a",
+      "kavlan-16": "2001:660:4406:7a0:509:0::a",
+      "kavlan-18": "2001:660:4406:8a0:509:0::a",
+      "kavlan-2": "2001:660:4406:581:9:0::a",
+      "kavlan-20": "2001:660:4406:3a0:509:0::a",
+      "kavlan-21": "2001:660:4406:6a0:509:0::a",
+      "kavlan-3": "2001:660:4406:582:9:0::a",
+      "kavlan-4": "2001:660:4406:590:9:0::a",
+      "kavlan-5": "2001:660:4406:591:9:0::a",
+      "kavlan-6": "2001:660:4406:592:9:0::a",
+      "kavlan-7": "2001:660:4406:593:9:0::a",
+      "kavlan-8": "2001:660:4406:594:9:0::a",
+      "kavlan-9": "2001:660:4406:595:9:0::a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::a",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.10",
-      "ip6": "2001:660:4406:500:9::a",
+      "ip6": "2001:660:4406:500:9:0::a",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-11.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-11.json
index e0ee8997fe0..b7a9f5e5842 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-11.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-11.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::b",
-      "kavlan-11": "2001:660:4406:1a0:509::b",
-      "kavlan-12": "2001:660:4406:2a0:509::b",
-      "kavlan-13": "2001:660:4406:4a0:509::b",
-      "kavlan-14": "2001:660:4406:5a0:509::b",
-      "kavlan-16": "2001:660:4406:7a0:509::b",
-      "kavlan-18": "2001:660:4406:8a0:509::b",
-      "kavlan-2": "2001:660:4406:581:9::b",
-      "kavlan-20": "2001:660:4406:3a0:509::b",
-      "kavlan-21": "2001:660:4406:6a0:509::b",
-      "kavlan-3": "2001:660:4406:582:9::b",
-      "kavlan-4": "2001:660:4406:590:9::b",
-      "kavlan-5": "2001:660:4406:591:9::b",
-      "kavlan-6": "2001:660:4406:592:9::b",
-      "kavlan-7": "2001:660:4406:593:9::b",
-      "kavlan-8": "2001:660:4406:594:9::b",
-      "kavlan-9": "2001:660:4406:595:9::b"
+      "kavlan-1": "2001:660:4406:580:9:0::b",
+      "kavlan-11": "2001:660:4406:1a0:509:0::b",
+      "kavlan-12": "2001:660:4406:2a0:509:0::b",
+      "kavlan-13": "2001:660:4406:4a0:509:0::b",
+      "kavlan-14": "2001:660:4406:5a0:509:0::b",
+      "kavlan-16": "2001:660:4406:7a0:509:0::b",
+      "kavlan-18": "2001:660:4406:8a0:509:0::b",
+      "kavlan-2": "2001:660:4406:581:9:0::b",
+      "kavlan-20": "2001:660:4406:3a0:509:0::b",
+      "kavlan-21": "2001:660:4406:6a0:509:0::b",
+      "kavlan-3": "2001:660:4406:582:9:0::b",
+      "kavlan-4": "2001:660:4406:590:9:0::b",
+      "kavlan-5": "2001:660:4406:591:9:0::b",
+      "kavlan-6": "2001:660:4406:592:9:0::b",
+      "kavlan-7": "2001:660:4406:593:9:0::b",
+      "kavlan-8": "2001:660:4406:594:9:0::b",
+      "kavlan-9": "2001:660:4406:595:9:0::b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::b",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.11",
-      "ip6": "2001:660:4406:500:9::b",
+      "ip6": "2001:660:4406:500:9:0::b",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-12.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-12.json
index 546f8ac3cc8..d661d4b627e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-12.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-12.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::c",
-      "kavlan-11": "2001:660:4406:1a0:509::c",
-      "kavlan-12": "2001:660:4406:2a0:509::c",
-      "kavlan-13": "2001:660:4406:4a0:509::c",
-      "kavlan-14": "2001:660:4406:5a0:509::c",
-      "kavlan-16": "2001:660:4406:7a0:509::c",
-      "kavlan-18": "2001:660:4406:8a0:509::c",
-      "kavlan-2": "2001:660:4406:581:9::c",
-      "kavlan-20": "2001:660:4406:3a0:509::c",
-      "kavlan-21": "2001:660:4406:6a0:509::c",
-      "kavlan-3": "2001:660:4406:582:9::c",
-      "kavlan-4": "2001:660:4406:590:9::c",
-      "kavlan-5": "2001:660:4406:591:9::c",
-      "kavlan-6": "2001:660:4406:592:9::c",
-      "kavlan-7": "2001:660:4406:593:9::c",
-      "kavlan-8": "2001:660:4406:594:9::c",
-      "kavlan-9": "2001:660:4406:595:9::c"
+      "kavlan-1": "2001:660:4406:580:9:0::c",
+      "kavlan-11": "2001:660:4406:1a0:509:0::c",
+      "kavlan-12": "2001:660:4406:2a0:509:0::c",
+      "kavlan-13": "2001:660:4406:4a0:509:0::c",
+      "kavlan-14": "2001:660:4406:5a0:509:0::c",
+      "kavlan-16": "2001:660:4406:7a0:509:0::c",
+      "kavlan-18": "2001:660:4406:8a0:509:0::c",
+      "kavlan-2": "2001:660:4406:581:9:0::c",
+      "kavlan-20": "2001:660:4406:3a0:509:0::c",
+      "kavlan-21": "2001:660:4406:6a0:509:0::c",
+      "kavlan-3": "2001:660:4406:582:9:0::c",
+      "kavlan-4": "2001:660:4406:590:9:0::c",
+      "kavlan-5": "2001:660:4406:591:9:0::c",
+      "kavlan-6": "2001:660:4406:592:9:0::c",
+      "kavlan-7": "2001:660:4406:593:9:0::c",
+      "kavlan-8": "2001:660:4406:594:9:0::c",
+      "kavlan-9": "2001:660:4406:595:9:0::c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::c",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.12",
-      "ip6": "2001:660:4406:500:9::c",
+      "ip6": "2001:660:4406:500:9:0::c",
       "kavlan": true,
       "mac": "24:6e:96:bd:52:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-13.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-13.json
index 83e31a09556..e960d3bfab4 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-13.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-13.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::d",
-      "kavlan-11": "2001:660:4406:1a0:509::d",
-      "kavlan-12": "2001:660:4406:2a0:509::d",
-      "kavlan-13": "2001:660:4406:4a0:509::d",
-      "kavlan-14": "2001:660:4406:5a0:509::d",
-      "kavlan-16": "2001:660:4406:7a0:509::d",
-      "kavlan-18": "2001:660:4406:8a0:509::d",
-      "kavlan-2": "2001:660:4406:581:9::d",
-      "kavlan-20": "2001:660:4406:3a0:509::d",
-      "kavlan-21": "2001:660:4406:6a0:509::d",
-      "kavlan-3": "2001:660:4406:582:9::d",
-      "kavlan-4": "2001:660:4406:590:9::d",
-      "kavlan-5": "2001:660:4406:591:9::d",
-      "kavlan-6": "2001:660:4406:592:9::d",
-      "kavlan-7": "2001:660:4406:593:9::d",
-      "kavlan-8": "2001:660:4406:594:9::d",
-      "kavlan-9": "2001:660:4406:595:9::d"
+      "kavlan-1": "2001:660:4406:580:9:0::d",
+      "kavlan-11": "2001:660:4406:1a0:509:0::d",
+      "kavlan-12": "2001:660:4406:2a0:509:0::d",
+      "kavlan-13": "2001:660:4406:4a0:509:0::d",
+      "kavlan-14": "2001:660:4406:5a0:509:0::d",
+      "kavlan-16": "2001:660:4406:7a0:509:0::d",
+      "kavlan-18": "2001:660:4406:8a0:509:0::d",
+      "kavlan-2": "2001:660:4406:581:9:0::d",
+      "kavlan-20": "2001:660:4406:3a0:509:0::d",
+      "kavlan-21": "2001:660:4406:6a0:509:0::d",
+      "kavlan-3": "2001:660:4406:582:9:0::d",
+      "kavlan-4": "2001:660:4406:590:9:0::d",
+      "kavlan-5": "2001:660:4406:591:9:0::d",
+      "kavlan-6": "2001:660:4406:592:9:0::d",
+      "kavlan-7": "2001:660:4406:593:9:0::d",
+      "kavlan-8": "2001:660:4406:594:9:0::d",
+      "kavlan-9": "2001:660:4406:595:9:0::d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::d",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.13",
-      "ip6": "2001:660:4406:500:9::d",
+      "ip6": "2001:660:4406:500:9:0::d",
       "kavlan": true,
       "mac": "24:6e:96:03:11:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-14.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-14.json
index dfb556b40b7..1b29a8d22d4 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-14.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-14.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::e",
-      "kavlan-11": "2001:660:4406:1a0:509::e",
-      "kavlan-12": "2001:660:4406:2a0:509::e",
-      "kavlan-13": "2001:660:4406:4a0:509::e",
-      "kavlan-14": "2001:660:4406:5a0:509::e",
-      "kavlan-16": "2001:660:4406:7a0:509::e",
-      "kavlan-18": "2001:660:4406:8a0:509::e",
-      "kavlan-2": "2001:660:4406:581:9::e",
-      "kavlan-20": "2001:660:4406:3a0:509::e",
-      "kavlan-21": "2001:660:4406:6a0:509::e",
-      "kavlan-3": "2001:660:4406:582:9::e",
-      "kavlan-4": "2001:660:4406:590:9::e",
-      "kavlan-5": "2001:660:4406:591:9::e",
-      "kavlan-6": "2001:660:4406:592:9::e",
-      "kavlan-7": "2001:660:4406:593:9::e",
-      "kavlan-8": "2001:660:4406:594:9::e",
-      "kavlan-9": "2001:660:4406:595:9::e"
+      "kavlan-1": "2001:660:4406:580:9:0::e",
+      "kavlan-11": "2001:660:4406:1a0:509:0::e",
+      "kavlan-12": "2001:660:4406:2a0:509:0::e",
+      "kavlan-13": "2001:660:4406:4a0:509:0::e",
+      "kavlan-14": "2001:660:4406:5a0:509:0::e",
+      "kavlan-16": "2001:660:4406:7a0:509:0::e",
+      "kavlan-18": "2001:660:4406:8a0:509:0::e",
+      "kavlan-2": "2001:660:4406:581:9:0::e",
+      "kavlan-20": "2001:660:4406:3a0:509:0::e",
+      "kavlan-21": "2001:660:4406:6a0:509:0::e",
+      "kavlan-3": "2001:660:4406:582:9:0::e",
+      "kavlan-4": "2001:660:4406:590:9:0::e",
+      "kavlan-5": "2001:660:4406:591:9:0::e",
+      "kavlan-6": "2001:660:4406:592:9:0::e",
+      "kavlan-7": "2001:660:4406:593:9:0::e",
+      "kavlan-8": "2001:660:4406:594:9:0::e",
+      "kavlan-9": "2001:660:4406:595:9:0::e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::e",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.14",
-      "ip6": "2001:660:4406:500:9::e",
+      "ip6": "2001:660:4406:500:9:0::e",
       "kavlan": true,
       "mac": "24:6e:96:02:a3:e0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-15.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-15.json
index 59aa78ae47e..4df9bb50e3d 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-15.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-15.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::f",
-      "kavlan-11": "2001:660:4406:1a0:509::f",
-      "kavlan-12": "2001:660:4406:2a0:509::f",
-      "kavlan-13": "2001:660:4406:4a0:509::f",
-      "kavlan-14": "2001:660:4406:5a0:509::f",
-      "kavlan-16": "2001:660:4406:7a0:509::f",
-      "kavlan-18": "2001:660:4406:8a0:509::f",
-      "kavlan-2": "2001:660:4406:581:9::f",
-      "kavlan-20": "2001:660:4406:3a0:509::f",
-      "kavlan-21": "2001:660:4406:6a0:509::f",
-      "kavlan-3": "2001:660:4406:582:9::f",
-      "kavlan-4": "2001:660:4406:590:9::f",
-      "kavlan-5": "2001:660:4406:591:9::f",
-      "kavlan-6": "2001:660:4406:592:9::f",
-      "kavlan-7": "2001:660:4406:593:9::f",
-      "kavlan-8": "2001:660:4406:594:9::f",
-      "kavlan-9": "2001:660:4406:595:9::f"
+      "kavlan-1": "2001:660:4406:580:9:0::f",
+      "kavlan-11": "2001:660:4406:1a0:509:0::f",
+      "kavlan-12": "2001:660:4406:2a0:509:0::f",
+      "kavlan-13": "2001:660:4406:4a0:509:0::f",
+      "kavlan-14": "2001:660:4406:5a0:509:0::f",
+      "kavlan-16": "2001:660:4406:7a0:509:0::f",
+      "kavlan-18": "2001:660:4406:8a0:509:0::f",
+      "kavlan-2": "2001:660:4406:581:9:0::f",
+      "kavlan-20": "2001:660:4406:3a0:509:0::f",
+      "kavlan-21": "2001:660:4406:6a0:509:0::f",
+      "kavlan-3": "2001:660:4406:582:9:0::f",
+      "kavlan-4": "2001:660:4406:590:9:0::f",
+      "kavlan-5": "2001:660:4406:591:9:0::f",
+      "kavlan-6": "2001:660:4406:592:9:0::f",
+      "kavlan-7": "2001:660:4406:593:9:0::f",
+      "kavlan-8": "2001:660:4406:594:9:0::f",
+      "kavlan-9": "2001:660:4406:595:9:0::f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::f",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.15",
-      "ip6": "2001:660:4406:500:9::f",
+      "ip6": "2001:660:4406:500:9:0::f",
       "kavlan": true,
       "mac": "24:6e:96:02:9f:08",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-16.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-16.json
index 9311dec20ae..8a6c12cd932 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-16.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-16.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::10",
-      "kavlan-11": "2001:660:4406:1a0:509::10",
-      "kavlan-12": "2001:660:4406:2a0:509::10",
-      "kavlan-13": "2001:660:4406:4a0:509::10",
-      "kavlan-14": "2001:660:4406:5a0:509::10",
-      "kavlan-16": "2001:660:4406:7a0:509::10",
-      "kavlan-18": "2001:660:4406:8a0:509::10",
-      "kavlan-2": "2001:660:4406:581:9::10",
-      "kavlan-20": "2001:660:4406:3a0:509::10",
-      "kavlan-21": "2001:660:4406:6a0:509::10",
-      "kavlan-3": "2001:660:4406:582:9::10",
-      "kavlan-4": "2001:660:4406:590:9::10",
-      "kavlan-5": "2001:660:4406:591:9::10",
-      "kavlan-6": "2001:660:4406:592:9::10",
-      "kavlan-7": "2001:660:4406:593:9::10",
-      "kavlan-8": "2001:660:4406:594:9::10",
-      "kavlan-9": "2001:660:4406:595:9::10"
+      "kavlan-1": "2001:660:4406:580:9:0::10",
+      "kavlan-11": "2001:660:4406:1a0:509:0::10",
+      "kavlan-12": "2001:660:4406:2a0:509:0::10",
+      "kavlan-13": "2001:660:4406:4a0:509:0::10",
+      "kavlan-14": "2001:660:4406:5a0:509:0::10",
+      "kavlan-16": "2001:660:4406:7a0:509:0::10",
+      "kavlan-18": "2001:660:4406:8a0:509:0::10",
+      "kavlan-2": "2001:660:4406:581:9:0::10",
+      "kavlan-20": "2001:660:4406:3a0:509:0::10",
+      "kavlan-21": "2001:660:4406:6a0:509:0::10",
+      "kavlan-3": "2001:660:4406:582:9:0::10",
+      "kavlan-4": "2001:660:4406:590:9:0::10",
+      "kavlan-5": "2001:660:4406:591:9:0::10",
+      "kavlan-6": "2001:660:4406:592:9:0::10",
+      "kavlan-7": "2001:660:4406:593:9:0::10",
+      "kavlan-8": "2001:660:4406:594:9:0::10",
+      "kavlan-9": "2001:660:4406:595:9:0::10"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::10",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.16",
-      "ip6": "2001:660:4406:500:9::10",
+      "ip6": "2001:660:4406:500:9:0::10",
       "kavlan": true,
       "mac": "e4:43:4b:5a:e6:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-17.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-17.json
index ff68a928f1c..f263acece3a 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-17.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-17.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::11",
-      "kavlan-11": "2001:660:4406:1a0:509::11",
-      "kavlan-12": "2001:660:4406:2a0:509::11",
-      "kavlan-13": "2001:660:4406:4a0:509::11",
-      "kavlan-14": "2001:660:4406:5a0:509::11",
-      "kavlan-16": "2001:660:4406:7a0:509::11",
-      "kavlan-18": "2001:660:4406:8a0:509::11",
-      "kavlan-2": "2001:660:4406:581:9::11",
-      "kavlan-20": "2001:660:4406:3a0:509::11",
-      "kavlan-21": "2001:660:4406:6a0:509::11",
-      "kavlan-3": "2001:660:4406:582:9::11",
-      "kavlan-4": "2001:660:4406:590:9::11",
-      "kavlan-5": "2001:660:4406:591:9::11",
-      "kavlan-6": "2001:660:4406:592:9::11",
-      "kavlan-7": "2001:660:4406:593:9::11",
-      "kavlan-8": "2001:660:4406:594:9::11",
-      "kavlan-9": "2001:660:4406:595:9::11"
+      "kavlan-1": "2001:660:4406:580:9:0::11",
+      "kavlan-11": "2001:660:4406:1a0:509:0::11",
+      "kavlan-12": "2001:660:4406:2a0:509:0::11",
+      "kavlan-13": "2001:660:4406:4a0:509:0::11",
+      "kavlan-14": "2001:660:4406:5a0:509:0::11",
+      "kavlan-16": "2001:660:4406:7a0:509:0::11",
+      "kavlan-18": "2001:660:4406:8a0:509:0::11",
+      "kavlan-2": "2001:660:4406:581:9:0::11",
+      "kavlan-20": "2001:660:4406:3a0:509:0::11",
+      "kavlan-21": "2001:660:4406:6a0:509:0::11",
+      "kavlan-3": "2001:660:4406:582:9:0::11",
+      "kavlan-4": "2001:660:4406:590:9:0::11",
+      "kavlan-5": "2001:660:4406:591:9:0::11",
+      "kavlan-6": "2001:660:4406:592:9:0::11",
+      "kavlan-7": "2001:660:4406:593:9:0::11",
+      "kavlan-8": "2001:660:4406:594:9:0::11",
+      "kavlan-9": "2001:660:4406:595:9:0::11"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::11",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.17",
-      "ip6": "2001:660:4406:500:9::11",
+      "ip6": "2001:660:4406:500:9:0::11",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-18.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-18.json
index 2b37a977ba3..5265ed7c12e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-18.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-18.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::12",
-      "kavlan-11": "2001:660:4406:1a0:509::12",
-      "kavlan-12": "2001:660:4406:2a0:509::12",
-      "kavlan-13": "2001:660:4406:4a0:509::12",
-      "kavlan-14": "2001:660:4406:5a0:509::12",
-      "kavlan-16": "2001:660:4406:7a0:509::12",
-      "kavlan-18": "2001:660:4406:8a0:509::12",
-      "kavlan-2": "2001:660:4406:581:9::12",
-      "kavlan-20": "2001:660:4406:3a0:509::12",
-      "kavlan-21": "2001:660:4406:6a0:509::12",
-      "kavlan-3": "2001:660:4406:582:9::12",
-      "kavlan-4": "2001:660:4406:590:9::12",
-      "kavlan-5": "2001:660:4406:591:9::12",
-      "kavlan-6": "2001:660:4406:592:9::12",
-      "kavlan-7": "2001:660:4406:593:9::12",
-      "kavlan-8": "2001:660:4406:594:9::12",
-      "kavlan-9": "2001:660:4406:595:9::12"
+      "kavlan-1": "2001:660:4406:580:9:0::12",
+      "kavlan-11": "2001:660:4406:1a0:509:0::12",
+      "kavlan-12": "2001:660:4406:2a0:509:0::12",
+      "kavlan-13": "2001:660:4406:4a0:509:0::12",
+      "kavlan-14": "2001:660:4406:5a0:509:0::12",
+      "kavlan-16": "2001:660:4406:7a0:509:0::12",
+      "kavlan-18": "2001:660:4406:8a0:509:0::12",
+      "kavlan-2": "2001:660:4406:581:9:0::12",
+      "kavlan-20": "2001:660:4406:3a0:509:0::12",
+      "kavlan-21": "2001:660:4406:6a0:509:0::12",
+      "kavlan-3": "2001:660:4406:582:9:0::12",
+      "kavlan-4": "2001:660:4406:590:9:0::12",
+      "kavlan-5": "2001:660:4406:591:9:0::12",
+      "kavlan-6": "2001:660:4406:592:9:0::12",
+      "kavlan-7": "2001:660:4406:593:9:0::12",
+      "kavlan-8": "2001:660:4406:594:9:0::12",
+      "kavlan-9": "2001:660:4406:595:9:0::12"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::12",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.18",
-      "ip6": "2001:660:4406:500:9::12",
+      "ip6": "2001:660:4406:500:9:0::12",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-19.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-19.json
index 13149c60470..bbe96c120da 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-19.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-19.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::13",
-      "kavlan-11": "2001:660:4406:1a0:509::13",
-      "kavlan-12": "2001:660:4406:2a0:509::13",
-      "kavlan-13": "2001:660:4406:4a0:509::13",
-      "kavlan-14": "2001:660:4406:5a0:509::13",
-      "kavlan-16": "2001:660:4406:7a0:509::13",
-      "kavlan-18": "2001:660:4406:8a0:509::13",
-      "kavlan-2": "2001:660:4406:581:9::13",
-      "kavlan-20": "2001:660:4406:3a0:509::13",
-      "kavlan-21": "2001:660:4406:6a0:509::13",
-      "kavlan-3": "2001:660:4406:582:9::13",
-      "kavlan-4": "2001:660:4406:590:9::13",
-      "kavlan-5": "2001:660:4406:591:9::13",
-      "kavlan-6": "2001:660:4406:592:9::13",
-      "kavlan-7": "2001:660:4406:593:9::13",
-      "kavlan-8": "2001:660:4406:594:9::13",
-      "kavlan-9": "2001:660:4406:595:9::13"
+      "kavlan-1": "2001:660:4406:580:9:0::13",
+      "kavlan-11": "2001:660:4406:1a0:509:0::13",
+      "kavlan-12": "2001:660:4406:2a0:509:0::13",
+      "kavlan-13": "2001:660:4406:4a0:509:0::13",
+      "kavlan-14": "2001:660:4406:5a0:509:0::13",
+      "kavlan-16": "2001:660:4406:7a0:509:0::13",
+      "kavlan-18": "2001:660:4406:8a0:509:0::13",
+      "kavlan-2": "2001:660:4406:581:9:0::13",
+      "kavlan-20": "2001:660:4406:3a0:509:0::13",
+      "kavlan-21": "2001:660:4406:6a0:509:0::13",
+      "kavlan-3": "2001:660:4406:582:9:0::13",
+      "kavlan-4": "2001:660:4406:590:9:0::13",
+      "kavlan-5": "2001:660:4406:591:9:0::13",
+      "kavlan-6": "2001:660:4406:592:9:0::13",
+      "kavlan-7": "2001:660:4406:593:9:0::13",
+      "kavlan-8": "2001:660:4406:594:9:0::13",
+      "kavlan-9": "2001:660:4406:595:9:0::13"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::13",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.19",
-      "ip6": "2001:660:4406:500:9::13",
+      "ip6": "2001:660:4406:500:9:0::13",
       "kavlan": true,
       "mac": "24:6e:96:03:0f:a0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-2.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-2.json
index df83f8bcfb0..05129962197 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-2.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-2.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::2",
-      "kavlan-11": "2001:660:4406:1a0:509::2",
-      "kavlan-12": "2001:660:4406:2a0:509::2",
-      "kavlan-13": "2001:660:4406:4a0:509::2",
-      "kavlan-14": "2001:660:4406:5a0:509::2",
-      "kavlan-16": "2001:660:4406:7a0:509::2",
-      "kavlan-18": "2001:660:4406:8a0:509::2",
-      "kavlan-2": "2001:660:4406:581:9::2",
-      "kavlan-20": "2001:660:4406:3a0:509::2",
-      "kavlan-21": "2001:660:4406:6a0:509::2",
-      "kavlan-3": "2001:660:4406:582:9::2",
-      "kavlan-4": "2001:660:4406:590:9::2",
-      "kavlan-5": "2001:660:4406:591:9::2",
-      "kavlan-6": "2001:660:4406:592:9::2",
-      "kavlan-7": "2001:660:4406:593:9::2",
-      "kavlan-8": "2001:660:4406:594:9::2",
-      "kavlan-9": "2001:660:4406:595:9::2"
+      "kavlan-1": "2001:660:4406:580:9:0::2",
+      "kavlan-11": "2001:660:4406:1a0:509:0::2",
+      "kavlan-12": "2001:660:4406:2a0:509:0::2",
+      "kavlan-13": "2001:660:4406:4a0:509:0::2",
+      "kavlan-14": "2001:660:4406:5a0:509:0::2",
+      "kavlan-16": "2001:660:4406:7a0:509:0::2",
+      "kavlan-18": "2001:660:4406:8a0:509:0::2",
+      "kavlan-2": "2001:660:4406:581:9:0::2",
+      "kavlan-20": "2001:660:4406:3a0:509:0::2",
+      "kavlan-21": "2001:660:4406:6a0:509:0::2",
+      "kavlan-3": "2001:660:4406:582:9:0::2",
+      "kavlan-4": "2001:660:4406:590:9:0::2",
+      "kavlan-5": "2001:660:4406:591:9:0::2",
+      "kavlan-6": "2001:660:4406:592:9:0::2",
+      "kavlan-7": "2001:660:4406:593:9:0::2",
+      "kavlan-8": "2001:660:4406:594:9:0::2",
+      "kavlan-9": "2001:660:4406:595:9:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::2",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.2",
-      "ip6": "2001:660:4406:500:9::2",
+      "ip6": "2001:660:4406:500:9:0::2",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-20.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-20.json
index 34692788798..24d113138d7 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-20.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-20.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::14",
-      "kavlan-11": "2001:660:4406:1a0:509::14",
-      "kavlan-12": "2001:660:4406:2a0:509::14",
-      "kavlan-13": "2001:660:4406:4a0:509::14",
-      "kavlan-14": "2001:660:4406:5a0:509::14",
-      "kavlan-16": "2001:660:4406:7a0:509::14",
-      "kavlan-18": "2001:660:4406:8a0:509::14",
-      "kavlan-2": "2001:660:4406:581:9::14",
-      "kavlan-20": "2001:660:4406:3a0:509::14",
-      "kavlan-21": "2001:660:4406:6a0:509::14",
-      "kavlan-3": "2001:660:4406:582:9::14",
-      "kavlan-4": "2001:660:4406:590:9::14",
-      "kavlan-5": "2001:660:4406:591:9::14",
-      "kavlan-6": "2001:660:4406:592:9::14",
-      "kavlan-7": "2001:660:4406:593:9::14",
-      "kavlan-8": "2001:660:4406:594:9::14",
-      "kavlan-9": "2001:660:4406:595:9::14"
+      "kavlan-1": "2001:660:4406:580:9:0::14",
+      "kavlan-11": "2001:660:4406:1a0:509:0::14",
+      "kavlan-12": "2001:660:4406:2a0:509:0::14",
+      "kavlan-13": "2001:660:4406:4a0:509:0::14",
+      "kavlan-14": "2001:660:4406:5a0:509:0::14",
+      "kavlan-16": "2001:660:4406:7a0:509:0::14",
+      "kavlan-18": "2001:660:4406:8a0:509:0::14",
+      "kavlan-2": "2001:660:4406:581:9:0::14",
+      "kavlan-20": "2001:660:4406:3a0:509:0::14",
+      "kavlan-21": "2001:660:4406:6a0:509:0::14",
+      "kavlan-3": "2001:660:4406:582:9:0::14",
+      "kavlan-4": "2001:660:4406:590:9:0::14",
+      "kavlan-5": "2001:660:4406:591:9:0::14",
+      "kavlan-6": "2001:660:4406:592:9:0::14",
+      "kavlan-7": "2001:660:4406:593:9:0::14",
+      "kavlan-8": "2001:660:4406:594:9:0::14",
+      "kavlan-9": "2001:660:4406:595:9:0::14"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::14",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.20",
-      "ip6": "2001:660:4406:500:9::14",
+      "ip6": "2001:660:4406:500:9:0::14",
       "kavlan": true,
       "mac": "24:6e:96:03:09:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-21.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-21.json
index 0c5717208ce..da767cda79e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-21.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-21.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::15",
-      "kavlan-11": "2001:660:4406:1a0:509::15",
-      "kavlan-12": "2001:660:4406:2a0:509::15",
-      "kavlan-13": "2001:660:4406:4a0:509::15",
-      "kavlan-14": "2001:660:4406:5a0:509::15",
-      "kavlan-16": "2001:660:4406:7a0:509::15",
-      "kavlan-18": "2001:660:4406:8a0:509::15",
-      "kavlan-2": "2001:660:4406:581:9::15",
-      "kavlan-20": "2001:660:4406:3a0:509::15",
-      "kavlan-21": "2001:660:4406:6a0:509::15",
-      "kavlan-3": "2001:660:4406:582:9::15",
-      "kavlan-4": "2001:660:4406:590:9::15",
-      "kavlan-5": "2001:660:4406:591:9::15",
-      "kavlan-6": "2001:660:4406:592:9::15",
-      "kavlan-7": "2001:660:4406:593:9::15",
-      "kavlan-8": "2001:660:4406:594:9::15",
-      "kavlan-9": "2001:660:4406:595:9::15"
+      "kavlan-1": "2001:660:4406:580:9:0::15",
+      "kavlan-11": "2001:660:4406:1a0:509:0::15",
+      "kavlan-12": "2001:660:4406:2a0:509:0::15",
+      "kavlan-13": "2001:660:4406:4a0:509:0::15",
+      "kavlan-14": "2001:660:4406:5a0:509:0::15",
+      "kavlan-16": "2001:660:4406:7a0:509:0::15",
+      "kavlan-18": "2001:660:4406:8a0:509:0::15",
+      "kavlan-2": "2001:660:4406:581:9:0::15",
+      "kavlan-20": "2001:660:4406:3a0:509:0::15",
+      "kavlan-21": "2001:660:4406:6a0:509:0::15",
+      "kavlan-3": "2001:660:4406:582:9:0::15",
+      "kavlan-4": "2001:660:4406:590:9:0::15",
+      "kavlan-5": "2001:660:4406:591:9:0::15",
+      "kavlan-6": "2001:660:4406:592:9:0::15",
+      "kavlan-7": "2001:660:4406:593:9:0::15",
+      "kavlan-8": "2001:660:4406:594:9:0::15",
+      "kavlan-9": "2001:660:4406:595:9:0::15"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::15",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.21",
-      "ip6": "2001:660:4406:500:9::15",
+      "ip6": "2001:660:4406:500:9:0::15",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-22.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-22.json
index ec580d4fcd5..15e1a15d63e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-22.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-22.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::16",
-      "kavlan-11": "2001:660:4406:1a0:509::16",
-      "kavlan-12": "2001:660:4406:2a0:509::16",
-      "kavlan-13": "2001:660:4406:4a0:509::16",
-      "kavlan-14": "2001:660:4406:5a0:509::16",
-      "kavlan-16": "2001:660:4406:7a0:509::16",
-      "kavlan-18": "2001:660:4406:8a0:509::16",
-      "kavlan-2": "2001:660:4406:581:9::16",
-      "kavlan-20": "2001:660:4406:3a0:509::16",
-      "kavlan-21": "2001:660:4406:6a0:509::16",
-      "kavlan-3": "2001:660:4406:582:9::16",
-      "kavlan-4": "2001:660:4406:590:9::16",
-      "kavlan-5": "2001:660:4406:591:9::16",
-      "kavlan-6": "2001:660:4406:592:9::16",
-      "kavlan-7": "2001:660:4406:593:9::16",
-      "kavlan-8": "2001:660:4406:594:9::16",
-      "kavlan-9": "2001:660:4406:595:9::16"
+      "kavlan-1": "2001:660:4406:580:9:0::16",
+      "kavlan-11": "2001:660:4406:1a0:509:0::16",
+      "kavlan-12": "2001:660:4406:2a0:509:0::16",
+      "kavlan-13": "2001:660:4406:4a0:509:0::16",
+      "kavlan-14": "2001:660:4406:5a0:509:0::16",
+      "kavlan-16": "2001:660:4406:7a0:509:0::16",
+      "kavlan-18": "2001:660:4406:8a0:509:0::16",
+      "kavlan-2": "2001:660:4406:581:9:0::16",
+      "kavlan-20": "2001:660:4406:3a0:509:0::16",
+      "kavlan-21": "2001:660:4406:6a0:509:0::16",
+      "kavlan-3": "2001:660:4406:582:9:0::16",
+      "kavlan-4": "2001:660:4406:590:9:0::16",
+      "kavlan-5": "2001:660:4406:591:9:0::16",
+      "kavlan-6": "2001:660:4406:592:9:0::16",
+      "kavlan-7": "2001:660:4406:593:9:0::16",
+      "kavlan-8": "2001:660:4406:594:9:0::16",
+      "kavlan-9": "2001:660:4406:595:9:0::16"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::16",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.22",
-      "ip6": "2001:660:4406:500:9::16",
+      "ip6": "2001:660:4406:500:9:0::16",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:68",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-23.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-23.json
index f28b2b2d041..4020bc86a05 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-23.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-23.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::17",
-      "kavlan-11": "2001:660:4406:1a0:509::17",
-      "kavlan-12": "2001:660:4406:2a0:509::17",
-      "kavlan-13": "2001:660:4406:4a0:509::17",
-      "kavlan-14": "2001:660:4406:5a0:509::17",
-      "kavlan-16": "2001:660:4406:7a0:509::17",
-      "kavlan-18": "2001:660:4406:8a0:509::17",
-      "kavlan-2": "2001:660:4406:581:9::17",
-      "kavlan-20": "2001:660:4406:3a0:509::17",
-      "kavlan-21": "2001:660:4406:6a0:509::17",
-      "kavlan-3": "2001:660:4406:582:9::17",
-      "kavlan-4": "2001:660:4406:590:9::17",
-      "kavlan-5": "2001:660:4406:591:9::17",
-      "kavlan-6": "2001:660:4406:592:9::17",
-      "kavlan-7": "2001:660:4406:593:9::17",
-      "kavlan-8": "2001:660:4406:594:9::17",
-      "kavlan-9": "2001:660:4406:595:9::17"
+      "kavlan-1": "2001:660:4406:580:9:0::17",
+      "kavlan-11": "2001:660:4406:1a0:509:0::17",
+      "kavlan-12": "2001:660:4406:2a0:509:0::17",
+      "kavlan-13": "2001:660:4406:4a0:509:0::17",
+      "kavlan-14": "2001:660:4406:5a0:509:0::17",
+      "kavlan-16": "2001:660:4406:7a0:509:0::17",
+      "kavlan-18": "2001:660:4406:8a0:509:0::17",
+      "kavlan-2": "2001:660:4406:581:9:0::17",
+      "kavlan-20": "2001:660:4406:3a0:509:0::17",
+      "kavlan-21": "2001:660:4406:6a0:509:0::17",
+      "kavlan-3": "2001:660:4406:582:9:0::17",
+      "kavlan-4": "2001:660:4406:590:9:0::17",
+      "kavlan-5": "2001:660:4406:591:9:0::17",
+      "kavlan-6": "2001:660:4406:592:9:0::17",
+      "kavlan-7": "2001:660:4406:593:9:0::17",
+      "kavlan-8": "2001:660:4406:594:9:0::17",
+      "kavlan-9": "2001:660:4406:595:9:0::17"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::17",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.23",
-      "ip6": "2001:660:4406:500:9::17",
+      "ip6": "2001:660:4406:500:9:0::17",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-24.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-24.json
index 29a9bbb93eb..cd915c2467f 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-24.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-24.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::18",
-      "kavlan-11": "2001:660:4406:1a0:509::18",
-      "kavlan-12": "2001:660:4406:2a0:509::18",
-      "kavlan-13": "2001:660:4406:4a0:509::18",
-      "kavlan-14": "2001:660:4406:5a0:509::18",
-      "kavlan-16": "2001:660:4406:7a0:509::18",
-      "kavlan-18": "2001:660:4406:8a0:509::18",
-      "kavlan-2": "2001:660:4406:581:9::18",
-      "kavlan-20": "2001:660:4406:3a0:509::18",
-      "kavlan-21": "2001:660:4406:6a0:509::18",
-      "kavlan-3": "2001:660:4406:582:9::18",
-      "kavlan-4": "2001:660:4406:590:9::18",
-      "kavlan-5": "2001:660:4406:591:9::18",
-      "kavlan-6": "2001:660:4406:592:9::18",
-      "kavlan-7": "2001:660:4406:593:9::18",
-      "kavlan-8": "2001:660:4406:594:9::18",
-      "kavlan-9": "2001:660:4406:595:9::18"
+      "kavlan-1": "2001:660:4406:580:9:0::18",
+      "kavlan-11": "2001:660:4406:1a0:509:0::18",
+      "kavlan-12": "2001:660:4406:2a0:509:0::18",
+      "kavlan-13": "2001:660:4406:4a0:509:0::18",
+      "kavlan-14": "2001:660:4406:5a0:509:0::18",
+      "kavlan-16": "2001:660:4406:7a0:509:0::18",
+      "kavlan-18": "2001:660:4406:8a0:509:0::18",
+      "kavlan-2": "2001:660:4406:581:9:0::18",
+      "kavlan-20": "2001:660:4406:3a0:509:0::18",
+      "kavlan-21": "2001:660:4406:6a0:509:0::18",
+      "kavlan-3": "2001:660:4406:582:9:0::18",
+      "kavlan-4": "2001:660:4406:590:9:0::18",
+      "kavlan-5": "2001:660:4406:591:9:0::18",
+      "kavlan-6": "2001:660:4406:592:9:0::18",
+      "kavlan-7": "2001:660:4406:593:9:0::18",
+      "kavlan-8": "2001:660:4406:594:9:0::18",
+      "kavlan-9": "2001:660:4406:595:9:0::18"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::18",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.24",
-      "ip6": "2001:660:4406:500:9::18",
+      "ip6": "2001:660:4406:500:9:0::18",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-25.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-25.json
index deef8486fc1..676f80039a8 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-25.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-25.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::19",
-      "kavlan-11": "2001:660:4406:1a0:509::19",
-      "kavlan-12": "2001:660:4406:2a0:509::19",
-      "kavlan-13": "2001:660:4406:4a0:509::19",
-      "kavlan-14": "2001:660:4406:5a0:509::19",
-      "kavlan-16": "2001:660:4406:7a0:509::19",
-      "kavlan-18": "2001:660:4406:8a0:509::19",
-      "kavlan-2": "2001:660:4406:581:9::19",
-      "kavlan-20": "2001:660:4406:3a0:509::19",
-      "kavlan-21": "2001:660:4406:6a0:509::19",
-      "kavlan-3": "2001:660:4406:582:9::19",
-      "kavlan-4": "2001:660:4406:590:9::19",
-      "kavlan-5": "2001:660:4406:591:9::19",
-      "kavlan-6": "2001:660:4406:592:9::19",
-      "kavlan-7": "2001:660:4406:593:9::19",
-      "kavlan-8": "2001:660:4406:594:9::19",
-      "kavlan-9": "2001:660:4406:595:9::19"
+      "kavlan-1": "2001:660:4406:580:9:0::19",
+      "kavlan-11": "2001:660:4406:1a0:509:0::19",
+      "kavlan-12": "2001:660:4406:2a0:509:0::19",
+      "kavlan-13": "2001:660:4406:4a0:509:0::19",
+      "kavlan-14": "2001:660:4406:5a0:509:0::19",
+      "kavlan-16": "2001:660:4406:7a0:509:0::19",
+      "kavlan-18": "2001:660:4406:8a0:509:0::19",
+      "kavlan-2": "2001:660:4406:581:9:0::19",
+      "kavlan-20": "2001:660:4406:3a0:509:0::19",
+      "kavlan-21": "2001:660:4406:6a0:509:0::19",
+      "kavlan-3": "2001:660:4406:582:9:0::19",
+      "kavlan-4": "2001:660:4406:590:9:0::19",
+      "kavlan-5": "2001:660:4406:591:9:0::19",
+      "kavlan-6": "2001:660:4406:592:9:0::19",
+      "kavlan-7": "2001:660:4406:593:9:0::19",
+      "kavlan-8": "2001:660:4406:594:9:0::19",
+      "kavlan-9": "2001:660:4406:595:9:0::19"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::19",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.25",
-      "ip6": "2001:660:4406:500:9::19",
+      "ip6": "2001:660:4406:500:9:0::19",
       "kavlan": true,
       "mac": "24:6e:96:02:a7:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-26.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-26.json
index e7f223747e4..c44e3ab75d6 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-26.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-26.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::1a",
-      "kavlan-11": "2001:660:4406:1a0:509::1a",
-      "kavlan-12": "2001:660:4406:2a0:509::1a",
-      "kavlan-13": "2001:660:4406:4a0:509::1a",
-      "kavlan-14": "2001:660:4406:5a0:509::1a",
-      "kavlan-16": "2001:660:4406:7a0:509::1a",
-      "kavlan-18": "2001:660:4406:8a0:509::1a",
-      "kavlan-2": "2001:660:4406:581:9::1a",
-      "kavlan-20": "2001:660:4406:3a0:509::1a",
-      "kavlan-21": "2001:660:4406:6a0:509::1a",
-      "kavlan-3": "2001:660:4406:582:9::1a",
-      "kavlan-4": "2001:660:4406:590:9::1a",
-      "kavlan-5": "2001:660:4406:591:9::1a",
-      "kavlan-6": "2001:660:4406:592:9::1a",
-      "kavlan-7": "2001:660:4406:593:9::1a",
-      "kavlan-8": "2001:660:4406:594:9::1a",
-      "kavlan-9": "2001:660:4406:595:9::1a"
+      "kavlan-1": "2001:660:4406:580:9:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:509:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:509:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:509:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:509:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:509:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:509:0::1a",
+      "kavlan-2": "2001:660:4406:581:9:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:509:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:509:0::1a",
+      "kavlan-3": "2001:660:4406:582:9:0::1a",
+      "kavlan-4": "2001:660:4406:590:9:0::1a",
+      "kavlan-5": "2001:660:4406:591:9:0::1a",
+      "kavlan-6": "2001:660:4406:592:9:0::1a",
+      "kavlan-7": "2001:660:4406:593:9:0::1a",
+      "kavlan-8": "2001:660:4406:594:9:0::1a",
+      "kavlan-9": "2001:660:4406:595:9:0::1a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::1a",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.26",
-      "ip6": "2001:660:4406:500:9::1a",
+      "ip6": "2001:660:4406:500:9:0::1a",
       "kavlan": true,
       "mac": "24:6e:96:02:a1:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-27.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-27.json
index 687c81f8936..6c24d3a909a 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-27.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-27.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::1b",
-      "kavlan-11": "2001:660:4406:1a0:509::1b",
-      "kavlan-12": "2001:660:4406:2a0:509::1b",
-      "kavlan-13": "2001:660:4406:4a0:509::1b",
-      "kavlan-14": "2001:660:4406:5a0:509::1b",
-      "kavlan-16": "2001:660:4406:7a0:509::1b",
-      "kavlan-18": "2001:660:4406:8a0:509::1b",
-      "kavlan-2": "2001:660:4406:581:9::1b",
-      "kavlan-20": "2001:660:4406:3a0:509::1b",
-      "kavlan-21": "2001:660:4406:6a0:509::1b",
-      "kavlan-3": "2001:660:4406:582:9::1b",
-      "kavlan-4": "2001:660:4406:590:9::1b",
-      "kavlan-5": "2001:660:4406:591:9::1b",
-      "kavlan-6": "2001:660:4406:592:9::1b",
-      "kavlan-7": "2001:660:4406:593:9::1b",
-      "kavlan-8": "2001:660:4406:594:9::1b",
-      "kavlan-9": "2001:660:4406:595:9::1b"
+      "kavlan-1": "2001:660:4406:580:9:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:509:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:509:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:509:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:509:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:509:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:509:0::1b",
+      "kavlan-2": "2001:660:4406:581:9:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:509:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:509:0::1b",
+      "kavlan-3": "2001:660:4406:582:9:0::1b",
+      "kavlan-4": "2001:660:4406:590:9:0::1b",
+      "kavlan-5": "2001:660:4406:591:9:0::1b",
+      "kavlan-6": "2001:660:4406:592:9:0::1b",
+      "kavlan-7": "2001:660:4406:593:9:0::1b",
+      "kavlan-8": "2001:660:4406:594:9:0::1b",
+      "kavlan-9": "2001:660:4406:595:9:0::1b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::1b",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.27",
-      "ip6": "2001:660:4406:500:9::1b",
+      "ip6": "2001:660:4406:500:9:0::1b",
       "kavlan": true,
       "mac": "24:6e:96:02:a4:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-28.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-28.json
index 00403055509..e8288285280 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-28.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-28.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::1c",
-      "kavlan-11": "2001:660:4406:1a0:509::1c",
-      "kavlan-12": "2001:660:4406:2a0:509::1c",
-      "kavlan-13": "2001:660:4406:4a0:509::1c",
-      "kavlan-14": "2001:660:4406:5a0:509::1c",
-      "kavlan-16": "2001:660:4406:7a0:509::1c",
-      "kavlan-18": "2001:660:4406:8a0:509::1c",
-      "kavlan-2": "2001:660:4406:581:9::1c",
-      "kavlan-20": "2001:660:4406:3a0:509::1c",
-      "kavlan-21": "2001:660:4406:6a0:509::1c",
-      "kavlan-3": "2001:660:4406:582:9::1c",
-      "kavlan-4": "2001:660:4406:590:9::1c",
-      "kavlan-5": "2001:660:4406:591:9::1c",
-      "kavlan-6": "2001:660:4406:592:9::1c",
-      "kavlan-7": "2001:660:4406:593:9::1c",
-      "kavlan-8": "2001:660:4406:594:9::1c",
-      "kavlan-9": "2001:660:4406:595:9::1c"
+      "kavlan-1": "2001:660:4406:580:9:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:509:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:509:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:509:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:509:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:509:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:509:0::1c",
+      "kavlan-2": "2001:660:4406:581:9:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:509:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:509:0::1c",
+      "kavlan-3": "2001:660:4406:582:9:0::1c",
+      "kavlan-4": "2001:660:4406:590:9:0::1c",
+      "kavlan-5": "2001:660:4406:591:9:0::1c",
+      "kavlan-6": "2001:660:4406:592:9:0::1c",
+      "kavlan-7": "2001:660:4406:593:9:0::1c",
+      "kavlan-8": "2001:660:4406:594:9:0::1c",
+      "kavlan-9": "2001:660:4406:595:9:0::1c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::1c",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.28",
-      "ip6": "2001:660:4406:500:9::1c",
+      "ip6": "2001:660:4406:500:9:0::1c",
       "kavlan": true,
       "mac": "e4:43:4b:21:59:48",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-29.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-29.json
index f24e4e3f5bc..063bd842d68 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-29.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-29.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::1d",
-      "kavlan-11": "2001:660:4406:1a0:509::1d",
-      "kavlan-12": "2001:660:4406:2a0:509::1d",
-      "kavlan-13": "2001:660:4406:4a0:509::1d",
-      "kavlan-14": "2001:660:4406:5a0:509::1d",
-      "kavlan-16": "2001:660:4406:7a0:509::1d",
-      "kavlan-18": "2001:660:4406:8a0:509::1d",
-      "kavlan-2": "2001:660:4406:581:9::1d",
-      "kavlan-20": "2001:660:4406:3a0:509::1d",
-      "kavlan-21": "2001:660:4406:6a0:509::1d",
-      "kavlan-3": "2001:660:4406:582:9::1d",
-      "kavlan-4": "2001:660:4406:590:9::1d",
-      "kavlan-5": "2001:660:4406:591:9::1d",
-      "kavlan-6": "2001:660:4406:592:9::1d",
-      "kavlan-7": "2001:660:4406:593:9::1d",
-      "kavlan-8": "2001:660:4406:594:9::1d",
-      "kavlan-9": "2001:660:4406:595:9::1d"
+      "kavlan-1": "2001:660:4406:580:9:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:509:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:509:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:509:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:509:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:509:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:509:0::1d",
+      "kavlan-2": "2001:660:4406:581:9:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:509:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:509:0::1d",
+      "kavlan-3": "2001:660:4406:582:9:0::1d",
+      "kavlan-4": "2001:660:4406:590:9:0::1d",
+      "kavlan-5": "2001:660:4406:591:9:0::1d",
+      "kavlan-6": "2001:660:4406:592:9:0::1d",
+      "kavlan-7": "2001:660:4406:593:9:0::1d",
+      "kavlan-8": "2001:660:4406:594:9:0::1d",
+      "kavlan-9": "2001:660:4406:595:9:0::1d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::1d",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.29",
-      "ip6": "2001:660:4406:500:9::1d",
+      "ip6": "2001:660:4406:500:9:0::1d",
       "kavlan": true,
       "mac": "24:6e:96:02:a9:88",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-3.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-3.json
index b5a33665663..55b207f2af9 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-3.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-3.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::3",
-      "kavlan-11": "2001:660:4406:1a0:509::3",
-      "kavlan-12": "2001:660:4406:2a0:509::3",
-      "kavlan-13": "2001:660:4406:4a0:509::3",
-      "kavlan-14": "2001:660:4406:5a0:509::3",
-      "kavlan-16": "2001:660:4406:7a0:509::3",
-      "kavlan-18": "2001:660:4406:8a0:509::3",
-      "kavlan-2": "2001:660:4406:581:9::3",
-      "kavlan-20": "2001:660:4406:3a0:509::3",
-      "kavlan-21": "2001:660:4406:6a0:509::3",
-      "kavlan-3": "2001:660:4406:582:9::3",
-      "kavlan-4": "2001:660:4406:590:9::3",
-      "kavlan-5": "2001:660:4406:591:9::3",
-      "kavlan-6": "2001:660:4406:592:9::3",
-      "kavlan-7": "2001:660:4406:593:9::3",
-      "kavlan-8": "2001:660:4406:594:9::3",
-      "kavlan-9": "2001:660:4406:595:9::3"
+      "kavlan-1": "2001:660:4406:580:9:0::3",
+      "kavlan-11": "2001:660:4406:1a0:509:0::3",
+      "kavlan-12": "2001:660:4406:2a0:509:0::3",
+      "kavlan-13": "2001:660:4406:4a0:509:0::3",
+      "kavlan-14": "2001:660:4406:5a0:509:0::3",
+      "kavlan-16": "2001:660:4406:7a0:509:0::3",
+      "kavlan-18": "2001:660:4406:8a0:509:0::3",
+      "kavlan-2": "2001:660:4406:581:9:0::3",
+      "kavlan-20": "2001:660:4406:3a0:509:0::3",
+      "kavlan-21": "2001:660:4406:6a0:509:0::3",
+      "kavlan-3": "2001:660:4406:582:9:0::3",
+      "kavlan-4": "2001:660:4406:590:9:0::3",
+      "kavlan-5": "2001:660:4406:591:9:0::3",
+      "kavlan-6": "2001:660:4406:592:9:0::3",
+      "kavlan-7": "2001:660:4406:593:9:0::3",
+      "kavlan-8": "2001:660:4406:594:9:0::3",
+      "kavlan-9": "2001:660:4406:595:9:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::3",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.3",
-      "ip6": "2001:660:4406:500:9::3",
+      "ip6": "2001:660:4406:500:9:0::3",
       "kavlan": true,
       "mac": "24:6e:96:03:0b:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-30.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-30.json
index f755512cc15..314cbf9282e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-30.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-30.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::1e",
-      "kavlan-11": "2001:660:4406:1a0:509::1e",
-      "kavlan-12": "2001:660:4406:2a0:509::1e",
-      "kavlan-13": "2001:660:4406:4a0:509::1e",
-      "kavlan-14": "2001:660:4406:5a0:509::1e",
-      "kavlan-16": "2001:660:4406:7a0:509::1e",
-      "kavlan-18": "2001:660:4406:8a0:509::1e",
-      "kavlan-2": "2001:660:4406:581:9::1e",
-      "kavlan-20": "2001:660:4406:3a0:509::1e",
-      "kavlan-21": "2001:660:4406:6a0:509::1e",
-      "kavlan-3": "2001:660:4406:582:9::1e",
-      "kavlan-4": "2001:660:4406:590:9::1e",
-      "kavlan-5": "2001:660:4406:591:9::1e",
-      "kavlan-6": "2001:660:4406:592:9::1e",
-      "kavlan-7": "2001:660:4406:593:9::1e",
-      "kavlan-8": "2001:660:4406:594:9::1e",
-      "kavlan-9": "2001:660:4406:595:9::1e"
+      "kavlan-1": "2001:660:4406:580:9:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:509:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:509:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:509:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:509:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:509:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:509:0::1e",
+      "kavlan-2": "2001:660:4406:581:9:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:509:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:509:0::1e",
+      "kavlan-3": "2001:660:4406:582:9:0::1e",
+      "kavlan-4": "2001:660:4406:590:9:0::1e",
+      "kavlan-5": "2001:660:4406:591:9:0::1e",
+      "kavlan-6": "2001:660:4406:592:9:0::1e",
+      "kavlan-7": "2001:660:4406:593:9:0::1e",
+      "kavlan-8": "2001:660:4406:594:9:0::1e",
+      "kavlan-9": "2001:660:4406:595:9:0::1e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::1e",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.30",
-      "ip6": "2001:660:4406:500:9::1e",
+      "ip6": "2001:660:4406:500:9:0::1e",
       "kavlan": true,
       "mac": "24:6e:96:02:a4:30",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-31.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-31.json
index 0f077082af3..689c948cbeb 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-31.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-31.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::1f",
-      "kavlan-11": "2001:660:4406:1a0:509::1f",
-      "kavlan-12": "2001:660:4406:2a0:509::1f",
-      "kavlan-13": "2001:660:4406:4a0:509::1f",
-      "kavlan-14": "2001:660:4406:5a0:509::1f",
-      "kavlan-16": "2001:660:4406:7a0:509::1f",
-      "kavlan-18": "2001:660:4406:8a0:509::1f",
-      "kavlan-2": "2001:660:4406:581:9::1f",
-      "kavlan-20": "2001:660:4406:3a0:509::1f",
-      "kavlan-21": "2001:660:4406:6a0:509::1f",
-      "kavlan-3": "2001:660:4406:582:9::1f",
-      "kavlan-4": "2001:660:4406:590:9::1f",
-      "kavlan-5": "2001:660:4406:591:9::1f",
-      "kavlan-6": "2001:660:4406:592:9::1f",
-      "kavlan-7": "2001:660:4406:593:9::1f",
-      "kavlan-8": "2001:660:4406:594:9::1f",
-      "kavlan-9": "2001:660:4406:595:9::1f"
+      "kavlan-1": "2001:660:4406:580:9:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:509:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:509:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:509:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:509:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:509:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:509:0::1f",
+      "kavlan-2": "2001:660:4406:581:9:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:509:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:509:0::1f",
+      "kavlan-3": "2001:660:4406:582:9:0::1f",
+      "kavlan-4": "2001:660:4406:590:9:0::1f",
+      "kavlan-5": "2001:660:4406:591:9:0::1f",
+      "kavlan-6": "2001:660:4406:592:9:0::1f",
+      "kavlan-7": "2001:660:4406:593:9:0::1f",
+      "kavlan-8": "2001:660:4406:594:9:0::1f",
+      "kavlan-9": "2001:660:4406:595:9:0::1f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::1f",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.31",
-      "ip6": "2001:660:4406:500:9::1f",
+      "ip6": "2001:660:4406:500:9:0::1f",
       "kavlan": true,
       "mac": "24:6e:96:03:10:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-32.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-32.json
index 59bbf69114f..5b1662e02c1 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-32.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-32.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::20",
-      "kavlan-11": "2001:660:4406:1a0:509::20",
-      "kavlan-12": "2001:660:4406:2a0:509::20",
-      "kavlan-13": "2001:660:4406:4a0:509::20",
-      "kavlan-14": "2001:660:4406:5a0:509::20",
-      "kavlan-16": "2001:660:4406:7a0:509::20",
-      "kavlan-18": "2001:660:4406:8a0:509::20",
-      "kavlan-2": "2001:660:4406:581:9::20",
-      "kavlan-20": "2001:660:4406:3a0:509::20",
-      "kavlan-21": "2001:660:4406:6a0:509::20",
-      "kavlan-3": "2001:660:4406:582:9::20",
-      "kavlan-4": "2001:660:4406:590:9::20",
-      "kavlan-5": "2001:660:4406:591:9::20",
-      "kavlan-6": "2001:660:4406:592:9::20",
-      "kavlan-7": "2001:660:4406:593:9::20",
-      "kavlan-8": "2001:660:4406:594:9::20",
-      "kavlan-9": "2001:660:4406:595:9::20"
+      "kavlan-1": "2001:660:4406:580:9:0::20",
+      "kavlan-11": "2001:660:4406:1a0:509:0::20",
+      "kavlan-12": "2001:660:4406:2a0:509:0::20",
+      "kavlan-13": "2001:660:4406:4a0:509:0::20",
+      "kavlan-14": "2001:660:4406:5a0:509:0::20",
+      "kavlan-16": "2001:660:4406:7a0:509:0::20",
+      "kavlan-18": "2001:660:4406:8a0:509:0::20",
+      "kavlan-2": "2001:660:4406:581:9:0::20",
+      "kavlan-20": "2001:660:4406:3a0:509:0::20",
+      "kavlan-21": "2001:660:4406:6a0:509:0::20",
+      "kavlan-3": "2001:660:4406:582:9:0::20",
+      "kavlan-4": "2001:660:4406:590:9:0::20",
+      "kavlan-5": "2001:660:4406:591:9:0::20",
+      "kavlan-6": "2001:660:4406:592:9:0::20",
+      "kavlan-7": "2001:660:4406:593:9:0::20",
+      "kavlan-8": "2001:660:4406:594:9:0::20",
+      "kavlan-9": "2001:660:4406:595:9:0::20"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::20",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.32",
-      "ip6": "2001:660:4406:500:9::20",
+      "ip6": "2001:660:4406:500:9:0::20",
       "kavlan": true,
       "mac": "24:6e:96:03:11:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-33.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-33.json
index eb6332877ac..8cbbc61aa96 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-33.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-33.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::21",
-      "kavlan-11": "2001:660:4406:1a0:509::21",
-      "kavlan-12": "2001:660:4406:2a0:509::21",
-      "kavlan-13": "2001:660:4406:4a0:509::21",
-      "kavlan-14": "2001:660:4406:5a0:509::21",
-      "kavlan-16": "2001:660:4406:7a0:509::21",
-      "kavlan-18": "2001:660:4406:8a0:509::21",
-      "kavlan-2": "2001:660:4406:581:9::21",
-      "kavlan-20": "2001:660:4406:3a0:509::21",
-      "kavlan-21": "2001:660:4406:6a0:509::21",
-      "kavlan-3": "2001:660:4406:582:9::21",
-      "kavlan-4": "2001:660:4406:590:9::21",
-      "kavlan-5": "2001:660:4406:591:9::21",
-      "kavlan-6": "2001:660:4406:592:9::21",
-      "kavlan-7": "2001:660:4406:593:9::21",
-      "kavlan-8": "2001:660:4406:594:9::21",
-      "kavlan-9": "2001:660:4406:595:9::21"
+      "kavlan-1": "2001:660:4406:580:9:0::21",
+      "kavlan-11": "2001:660:4406:1a0:509:0::21",
+      "kavlan-12": "2001:660:4406:2a0:509:0::21",
+      "kavlan-13": "2001:660:4406:4a0:509:0::21",
+      "kavlan-14": "2001:660:4406:5a0:509:0::21",
+      "kavlan-16": "2001:660:4406:7a0:509:0::21",
+      "kavlan-18": "2001:660:4406:8a0:509:0::21",
+      "kavlan-2": "2001:660:4406:581:9:0::21",
+      "kavlan-20": "2001:660:4406:3a0:509:0::21",
+      "kavlan-21": "2001:660:4406:6a0:509:0::21",
+      "kavlan-3": "2001:660:4406:582:9:0::21",
+      "kavlan-4": "2001:660:4406:590:9:0::21",
+      "kavlan-5": "2001:660:4406:591:9:0::21",
+      "kavlan-6": "2001:660:4406:592:9:0::21",
+      "kavlan-7": "2001:660:4406:593:9:0::21",
+      "kavlan-8": "2001:660:4406:594:9:0::21",
+      "kavlan-9": "2001:660:4406:595:9:0::21"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::21",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.33",
-      "ip6": "2001:660:4406:500:9::21",
+      "ip6": "2001:660:4406:500:9:0::21",
       "kavlan": true,
       "mac": "24:6e:96:03:09:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-34.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-34.json
index 92fa9ee50f8..bff73571337 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-34.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-34.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::22",
-      "kavlan-11": "2001:660:4406:1a0:509::22",
-      "kavlan-12": "2001:660:4406:2a0:509::22",
-      "kavlan-13": "2001:660:4406:4a0:509::22",
-      "kavlan-14": "2001:660:4406:5a0:509::22",
-      "kavlan-16": "2001:660:4406:7a0:509::22",
-      "kavlan-18": "2001:660:4406:8a0:509::22",
-      "kavlan-2": "2001:660:4406:581:9::22",
-      "kavlan-20": "2001:660:4406:3a0:509::22",
-      "kavlan-21": "2001:660:4406:6a0:509::22",
-      "kavlan-3": "2001:660:4406:582:9::22",
-      "kavlan-4": "2001:660:4406:590:9::22",
-      "kavlan-5": "2001:660:4406:591:9::22",
-      "kavlan-6": "2001:660:4406:592:9::22",
-      "kavlan-7": "2001:660:4406:593:9::22",
-      "kavlan-8": "2001:660:4406:594:9::22",
-      "kavlan-9": "2001:660:4406:595:9::22"
+      "kavlan-1": "2001:660:4406:580:9:0::22",
+      "kavlan-11": "2001:660:4406:1a0:509:0::22",
+      "kavlan-12": "2001:660:4406:2a0:509:0::22",
+      "kavlan-13": "2001:660:4406:4a0:509:0::22",
+      "kavlan-14": "2001:660:4406:5a0:509:0::22",
+      "kavlan-16": "2001:660:4406:7a0:509:0::22",
+      "kavlan-18": "2001:660:4406:8a0:509:0::22",
+      "kavlan-2": "2001:660:4406:581:9:0::22",
+      "kavlan-20": "2001:660:4406:3a0:509:0::22",
+      "kavlan-21": "2001:660:4406:6a0:509:0::22",
+      "kavlan-3": "2001:660:4406:582:9:0::22",
+      "kavlan-4": "2001:660:4406:590:9:0::22",
+      "kavlan-5": "2001:660:4406:591:9:0::22",
+      "kavlan-6": "2001:660:4406:592:9:0::22",
+      "kavlan-7": "2001:660:4406:593:9:0::22",
+      "kavlan-8": "2001:660:4406:594:9:0::22",
+      "kavlan-9": "2001:660:4406:595:9:0::22"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::22",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.34",
-      "ip6": "2001:660:4406:500:9::22",
+      "ip6": "2001:660:4406:500:9:0::22",
       "kavlan": true,
       "mac": "24:6e:96:03:1f:c8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-35.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-35.json
index e7c31b0a50a..c6061f2a719 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-35.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-35.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::23",
-      "kavlan-11": "2001:660:4406:1a0:509::23",
-      "kavlan-12": "2001:660:4406:2a0:509::23",
-      "kavlan-13": "2001:660:4406:4a0:509::23",
-      "kavlan-14": "2001:660:4406:5a0:509::23",
-      "kavlan-16": "2001:660:4406:7a0:509::23",
-      "kavlan-18": "2001:660:4406:8a0:509::23",
-      "kavlan-2": "2001:660:4406:581:9::23",
-      "kavlan-20": "2001:660:4406:3a0:509::23",
-      "kavlan-21": "2001:660:4406:6a0:509::23",
-      "kavlan-3": "2001:660:4406:582:9::23",
-      "kavlan-4": "2001:660:4406:590:9::23",
-      "kavlan-5": "2001:660:4406:591:9::23",
-      "kavlan-6": "2001:660:4406:592:9::23",
-      "kavlan-7": "2001:660:4406:593:9::23",
-      "kavlan-8": "2001:660:4406:594:9::23",
-      "kavlan-9": "2001:660:4406:595:9::23"
+      "kavlan-1": "2001:660:4406:580:9:0::23",
+      "kavlan-11": "2001:660:4406:1a0:509:0::23",
+      "kavlan-12": "2001:660:4406:2a0:509:0::23",
+      "kavlan-13": "2001:660:4406:4a0:509:0::23",
+      "kavlan-14": "2001:660:4406:5a0:509:0::23",
+      "kavlan-16": "2001:660:4406:7a0:509:0::23",
+      "kavlan-18": "2001:660:4406:8a0:509:0::23",
+      "kavlan-2": "2001:660:4406:581:9:0::23",
+      "kavlan-20": "2001:660:4406:3a0:509:0::23",
+      "kavlan-21": "2001:660:4406:6a0:509:0::23",
+      "kavlan-3": "2001:660:4406:582:9:0::23",
+      "kavlan-4": "2001:660:4406:590:9:0::23",
+      "kavlan-5": "2001:660:4406:591:9:0::23",
+      "kavlan-6": "2001:660:4406:592:9:0::23",
+      "kavlan-7": "2001:660:4406:593:9:0::23",
+      "kavlan-8": "2001:660:4406:594:9:0::23",
+      "kavlan-9": "2001:660:4406:595:9:0::23"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::23",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.35",
-      "ip6": "2001:660:4406:500:9::23",
+      "ip6": "2001:660:4406:500:9:0::23",
       "kavlan": true,
       "mac": "24:6e:96:03:11:60",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-36.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-36.json
index 9f39b405f1c..f7c0ad0ef60 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-36.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-36.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::24",
-      "kavlan-11": "2001:660:4406:1a0:509::24",
-      "kavlan-12": "2001:660:4406:2a0:509::24",
-      "kavlan-13": "2001:660:4406:4a0:509::24",
-      "kavlan-14": "2001:660:4406:5a0:509::24",
-      "kavlan-16": "2001:660:4406:7a0:509::24",
-      "kavlan-18": "2001:660:4406:8a0:509::24",
-      "kavlan-2": "2001:660:4406:581:9::24",
-      "kavlan-20": "2001:660:4406:3a0:509::24",
-      "kavlan-21": "2001:660:4406:6a0:509::24",
-      "kavlan-3": "2001:660:4406:582:9::24",
-      "kavlan-4": "2001:660:4406:590:9::24",
-      "kavlan-5": "2001:660:4406:591:9::24",
-      "kavlan-6": "2001:660:4406:592:9::24",
-      "kavlan-7": "2001:660:4406:593:9::24",
-      "kavlan-8": "2001:660:4406:594:9::24",
-      "kavlan-9": "2001:660:4406:595:9::24"
+      "kavlan-1": "2001:660:4406:580:9:0::24",
+      "kavlan-11": "2001:660:4406:1a0:509:0::24",
+      "kavlan-12": "2001:660:4406:2a0:509:0::24",
+      "kavlan-13": "2001:660:4406:4a0:509:0::24",
+      "kavlan-14": "2001:660:4406:5a0:509:0::24",
+      "kavlan-16": "2001:660:4406:7a0:509:0::24",
+      "kavlan-18": "2001:660:4406:8a0:509:0::24",
+      "kavlan-2": "2001:660:4406:581:9:0::24",
+      "kavlan-20": "2001:660:4406:3a0:509:0::24",
+      "kavlan-21": "2001:660:4406:6a0:509:0::24",
+      "kavlan-3": "2001:660:4406:582:9:0::24",
+      "kavlan-4": "2001:660:4406:590:9:0::24",
+      "kavlan-5": "2001:660:4406:591:9:0::24",
+      "kavlan-6": "2001:660:4406:592:9:0::24",
+      "kavlan-7": "2001:660:4406:593:9:0::24",
+      "kavlan-8": "2001:660:4406:594:9:0::24",
+      "kavlan-9": "2001:660:4406:595:9:0::24"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::24",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.36",
-      "ip6": "2001:660:4406:500:9::24",
+      "ip6": "2001:660:4406:500:9:0::24",
       "kavlan": true,
       "mac": "24:6e:96:03:11:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-37.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-37.json
index 3634a610976..ac589026d6e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-37.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-37.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::25",
-      "kavlan-11": "2001:660:4406:1a0:509::25",
-      "kavlan-12": "2001:660:4406:2a0:509::25",
-      "kavlan-13": "2001:660:4406:4a0:509::25",
-      "kavlan-14": "2001:660:4406:5a0:509::25",
-      "kavlan-16": "2001:660:4406:7a0:509::25",
-      "kavlan-18": "2001:660:4406:8a0:509::25",
-      "kavlan-2": "2001:660:4406:581:9::25",
-      "kavlan-20": "2001:660:4406:3a0:509::25",
-      "kavlan-21": "2001:660:4406:6a0:509::25",
-      "kavlan-3": "2001:660:4406:582:9::25",
-      "kavlan-4": "2001:660:4406:590:9::25",
-      "kavlan-5": "2001:660:4406:591:9::25",
-      "kavlan-6": "2001:660:4406:592:9::25",
-      "kavlan-7": "2001:660:4406:593:9::25",
-      "kavlan-8": "2001:660:4406:594:9::25",
-      "kavlan-9": "2001:660:4406:595:9::25"
+      "kavlan-1": "2001:660:4406:580:9:0::25",
+      "kavlan-11": "2001:660:4406:1a0:509:0::25",
+      "kavlan-12": "2001:660:4406:2a0:509:0::25",
+      "kavlan-13": "2001:660:4406:4a0:509:0::25",
+      "kavlan-14": "2001:660:4406:5a0:509:0::25",
+      "kavlan-16": "2001:660:4406:7a0:509:0::25",
+      "kavlan-18": "2001:660:4406:8a0:509:0::25",
+      "kavlan-2": "2001:660:4406:581:9:0::25",
+      "kavlan-20": "2001:660:4406:3a0:509:0::25",
+      "kavlan-21": "2001:660:4406:6a0:509:0::25",
+      "kavlan-3": "2001:660:4406:582:9:0::25",
+      "kavlan-4": "2001:660:4406:590:9:0::25",
+      "kavlan-5": "2001:660:4406:591:9:0::25",
+      "kavlan-6": "2001:660:4406:592:9:0::25",
+      "kavlan-7": "2001:660:4406:593:9:0::25",
+      "kavlan-8": "2001:660:4406:594:9:0::25",
+      "kavlan-9": "2001:660:4406:595:9:0::25"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::25",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.37",
-      "ip6": "2001:660:4406:500:9::25",
+      "ip6": "2001:660:4406:500:9:0::25",
       "kavlan": true,
       "mac": "24:6e:96:03:23:28",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-38.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-38.json
index f4bcbe1ae42..70e6d458adf 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-38.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-38.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::26",
-      "kavlan-11": "2001:660:4406:1a0:509::26",
-      "kavlan-12": "2001:660:4406:2a0:509::26",
-      "kavlan-13": "2001:660:4406:4a0:509::26",
-      "kavlan-14": "2001:660:4406:5a0:509::26",
-      "kavlan-16": "2001:660:4406:7a0:509::26",
-      "kavlan-18": "2001:660:4406:8a0:509::26",
-      "kavlan-2": "2001:660:4406:581:9::26",
-      "kavlan-20": "2001:660:4406:3a0:509::26",
-      "kavlan-21": "2001:660:4406:6a0:509::26",
-      "kavlan-3": "2001:660:4406:582:9::26",
-      "kavlan-4": "2001:660:4406:590:9::26",
-      "kavlan-5": "2001:660:4406:591:9::26",
-      "kavlan-6": "2001:660:4406:592:9::26",
-      "kavlan-7": "2001:660:4406:593:9::26",
-      "kavlan-8": "2001:660:4406:594:9::26",
-      "kavlan-9": "2001:660:4406:595:9::26"
+      "kavlan-1": "2001:660:4406:580:9:0::26",
+      "kavlan-11": "2001:660:4406:1a0:509:0::26",
+      "kavlan-12": "2001:660:4406:2a0:509:0::26",
+      "kavlan-13": "2001:660:4406:4a0:509:0::26",
+      "kavlan-14": "2001:660:4406:5a0:509:0::26",
+      "kavlan-16": "2001:660:4406:7a0:509:0::26",
+      "kavlan-18": "2001:660:4406:8a0:509:0::26",
+      "kavlan-2": "2001:660:4406:581:9:0::26",
+      "kavlan-20": "2001:660:4406:3a0:509:0::26",
+      "kavlan-21": "2001:660:4406:6a0:509:0::26",
+      "kavlan-3": "2001:660:4406:582:9:0::26",
+      "kavlan-4": "2001:660:4406:590:9:0::26",
+      "kavlan-5": "2001:660:4406:591:9:0::26",
+      "kavlan-6": "2001:660:4406:592:9:0::26",
+      "kavlan-7": "2001:660:4406:593:9:0::26",
+      "kavlan-8": "2001:660:4406:594:9:0::26",
+      "kavlan-9": "2001:660:4406:595:9:0::26"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::26",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.38",
-      "ip6": "2001:660:4406:500:9::26",
+      "ip6": "2001:660:4406:500:9:0::26",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-39.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-39.json
index 1b1e409537a..68ed904da9e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-39.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-39.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::27",
-      "kavlan-11": "2001:660:4406:1a0:509::27",
-      "kavlan-12": "2001:660:4406:2a0:509::27",
-      "kavlan-13": "2001:660:4406:4a0:509::27",
-      "kavlan-14": "2001:660:4406:5a0:509::27",
-      "kavlan-16": "2001:660:4406:7a0:509::27",
-      "kavlan-18": "2001:660:4406:8a0:509::27",
-      "kavlan-2": "2001:660:4406:581:9::27",
-      "kavlan-20": "2001:660:4406:3a0:509::27",
-      "kavlan-21": "2001:660:4406:6a0:509::27",
-      "kavlan-3": "2001:660:4406:582:9::27",
-      "kavlan-4": "2001:660:4406:590:9::27",
-      "kavlan-5": "2001:660:4406:591:9::27",
-      "kavlan-6": "2001:660:4406:592:9::27",
-      "kavlan-7": "2001:660:4406:593:9::27",
-      "kavlan-8": "2001:660:4406:594:9::27",
-      "kavlan-9": "2001:660:4406:595:9::27"
+      "kavlan-1": "2001:660:4406:580:9:0::27",
+      "kavlan-11": "2001:660:4406:1a0:509:0::27",
+      "kavlan-12": "2001:660:4406:2a0:509:0::27",
+      "kavlan-13": "2001:660:4406:4a0:509:0::27",
+      "kavlan-14": "2001:660:4406:5a0:509:0::27",
+      "kavlan-16": "2001:660:4406:7a0:509:0::27",
+      "kavlan-18": "2001:660:4406:8a0:509:0::27",
+      "kavlan-2": "2001:660:4406:581:9:0::27",
+      "kavlan-20": "2001:660:4406:3a0:509:0::27",
+      "kavlan-21": "2001:660:4406:6a0:509:0::27",
+      "kavlan-3": "2001:660:4406:582:9:0::27",
+      "kavlan-4": "2001:660:4406:590:9:0::27",
+      "kavlan-5": "2001:660:4406:591:9:0::27",
+      "kavlan-6": "2001:660:4406:592:9:0::27",
+      "kavlan-7": "2001:660:4406:593:9:0::27",
+      "kavlan-8": "2001:660:4406:594:9:0::27",
+      "kavlan-9": "2001:660:4406:595:9:0::27"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::27",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.39",
-      "ip6": "2001:660:4406:500:9::27",
+      "ip6": "2001:660:4406:500:9:0::27",
       "kavlan": true,
       "mac": "24:6e:96:03:09:c0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-4.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-4.json
index 06b2f48467c..6e84ff48a9f 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-4.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-4.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::4",
-      "kavlan-11": "2001:660:4406:1a0:509::4",
-      "kavlan-12": "2001:660:4406:2a0:509::4",
-      "kavlan-13": "2001:660:4406:4a0:509::4",
-      "kavlan-14": "2001:660:4406:5a0:509::4",
-      "kavlan-16": "2001:660:4406:7a0:509::4",
-      "kavlan-18": "2001:660:4406:8a0:509::4",
-      "kavlan-2": "2001:660:4406:581:9::4",
-      "kavlan-20": "2001:660:4406:3a0:509::4",
-      "kavlan-21": "2001:660:4406:6a0:509::4",
-      "kavlan-3": "2001:660:4406:582:9::4",
-      "kavlan-4": "2001:660:4406:590:9::4",
-      "kavlan-5": "2001:660:4406:591:9::4",
-      "kavlan-6": "2001:660:4406:592:9::4",
-      "kavlan-7": "2001:660:4406:593:9::4",
-      "kavlan-8": "2001:660:4406:594:9::4",
-      "kavlan-9": "2001:660:4406:595:9::4"
+      "kavlan-1": "2001:660:4406:580:9:0::4",
+      "kavlan-11": "2001:660:4406:1a0:509:0::4",
+      "kavlan-12": "2001:660:4406:2a0:509:0::4",
+      "kavlan-13": "2001:660:4406:4a0:509:0::4",
+      "kavlan-14": "2001:660:4406:5a0:509:0::4",
+      "kavlan-16": "2001:660:4406:7a0:509:0::4",
+      "kavlan-18": "2001:660:4406:8a0:509:0::4",
+      "kavlan-2": "2001:660:4406:581:9:0::4",
+      "kavlan-20": "2001:660:4406:3a0:509:0::4",
+      "kavlan-21": "2001:660:4406:6a0:509:0::4",
+      "kavlan-3": "2001:660:4406:582:9:0::4",
+      "kavlan-4": "2001:660:4406:590:9:0::4",
+      "kavlan-5": "2001:660:4406:591:9:0::4",
+      "kavlan-6": "2001:660:4406:592:9:0::4",
+      "kavlan-7": "2001:660:4406:593:9:0::4",
+      "kavlan-8": "2001:660:4406:594:9:0::4",
+      "kavlan-9": "2001:660:4406:595:9:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::4",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.4",
-      "ip6": "2001:660:4406:500:9::4",
+      "ip6": "2001:660:4406:500:9:0::4",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-40.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-40.json
index 65c3cef045f..56a8a308d5a 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-40.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-40.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::28",
-      "kavlan-11": "2001:660:4406:1a0:509::28",
-      "kavlan-12": "2001:660:4406:2a0:509::28",
-      "kavlan-13": "2001:660:4406:4a0:509::28",
-      "kavlan-14": "2001:660:4406:5a0:509::28",
-      "kavlan-16": "2001:660:4406:7a0:509::28",
-      "kavlan-18": "2001:660:4406:8a0:509::28",
-      "kavlan-2": "2001:660:4406:581:9::28",
-      "kavlan-20": "2001:660:4406:3a0:509::28",
-      "kavlan-21": "2001:660:4406:6a0:509::28",
-      "kavlan-3": "2001:660:4406:582:9::28",
-      "kavlan-4": "2001:660:4406:590:9::28",
-      "kavlan-5": "2001:660:4406:591:9::28",
-      "kavlan-6": "2001:660:4406:592:9::28",
-      "kavlan-7": "2001:660:4406:593:9::28",
-      "kavlan-8": "2001:660:4406:594:9::28",
-      "kavlan-9": "2001:660:4406:595:9::28"
+      "kavlan-1": "2001:660:4406:580:9:0::28",
+      "kavlan-11": "2001:660:4406:1a0:509:0::28",
+      "kavlan-12": "2001:660:4406:2a0:509:0::28",
+      "kavlan-13": "2001:660:4406:4a0:509:0::28",
+      "kavlan-14": "2001:660:4406:5a0:509:0::28",
+      "kavlan-16": "2001:660:4406:7a0:509:0::28",
+      "kavlan-18": "2001:660:4406:8a0:509:0::28",
+      "kavlan-2": "2001:660:4406:581:9:0::28",
+      "kavlan-20": "2001:660:4406:3a0:509:0::28",
+      "kavlan-21": "2001:660:4406:6a0:509:0::28",
+      "kavlan-3": "2001:660:4406:582:9:0::28",
+      "kavlan-4": "2001:660:4406:590:9:0::28",
+      "kavlan-5": "2001:660:4406:591:9:0::28",
+      "kavlan-6": "2001:660:4406:592:9:0::28",
+      "kavlan-7": "2001:660:4406:593:9:0::28",
+      "kavlan-8": "2001:660:4406:594:9:0::28",
+      "kavlan-9": "2001:660:4406:595:9:0::28"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::28",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.40",
-      "ip6": "2001:660:4406:500:9::28",
+      "ip6": "2001:660:4406:500:9:0::28",
       "kavlan": true,
       "mac": "24:6e:96:03:21:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-41.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-41.json
index 01f3192c800..6dd865a07a8 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-41.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-41.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::29",
-      "kavlan-11": "2001:660:4406:1a0:509::29",
-      "kavlan-12": "2001:660:4406:2a0:509::29",
-      "kavlan-13": "2001:660:4406:4a0:509::29",
-      "kavlan-14": "2001:660:4406:5a0:509::29",
-      "kavlan-16": "2001:660:4406:7a0:509::29",
-      "kavlan-18": "2001:660:4406:8a0:509::29",
-      "kavlan-2": "2001:660:4406:581:9::29",
-      "kavlan-20": "2001:660:4406:3a0:509::29",
-      "kavlan-21": "2001:660:4406:6a0:509::29",
-      "kavlan-3": "2001:660:4406:582:9::29",
-      "kavlan-4": "2001:660:4406:590:9::29",
-      "kavlan-5": "2001:660:4406:591:9::29",
-      "kavlan-6": "2001:660:4406:592:9::29",
-      "kavlan-7": "2001:660:4406:593:9::29",
-      "kavlan-8": "2001:660:4406:594:9::29",
-      "kavlan-9": "2001:660:4406:595:9::29"
+      "kavlan-1": "2001:660:4406:580:9:0::29",
+      "kavlan-11": "2001:660:4406:1a0:509:0::29",
+      "kavlan-12": "2001:660:4406:2a0:509:0::29",
+      "kavlan-13": "2001:660:4406:4a0:509:0::29",
+      "kavlan-14": "2001:660:4406:5a0:509:0::29",
+      "kavlan-16": "2001:660:4406:7a0:509:0::29",
+      "kavlan-18": "2001:660:4406:8a0:509:0::29",
+      "kavlan-2": "2001:660:4406:581:9:0::29",
+      "kavlan-20": "2001:660:4406:3a0:509:0::29",
+      "kavlan-21": "2001:660:4406:6a0:509:0::29",
+      "kavlan-3": "2001:660:4406:582:9:0::29",
+      "kavlan-4": "2001:660:4406:590:9:0::29",
+      "kavlan-5": "2001:660:4406:591:9:0::29",
+      "kavlan-6": "2001:660:4406:592:9:0::29",
+      "kavlan-7": "2001:660:4406:593:9:0::29",
+      "kavlan-8": "2001:660:4406:594:9:0::29",
+      "kavlan-9": "2001:660:4406:595:9:0::29"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::29",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.41",
-      "ip6": "2001:660:4406:500:9::29",
+      "ip6": "2001:660:4406:500:9:0::29",
       "kavlan": true,
       "mac": "24:6e:96:03:11:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-42.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-42.json
index 1082922858d..f2dbf74e61d 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-42.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-42.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::2a",
-      "kavlan-11": "2001:660:4406:1a0:509::2a",
-      "kavlan-12": "2001:660:4406:2a0:509::2a",
-      "kavlan-13": "2001:660:4406:4a0:509::2a",
-      "kavlan-14": "2001:660:4406:5a0:509::2a",
-      "kavlan-16": "2001:660:4406:7a0:509::2a",
-      "kavlan-18": "2001:660:4406:8a0:509::2a",
-      "kavlan-2": "2001:660:4406:581:9::2a",
-      "kavlan-20": "2001:660:4406:3a0:509::2a",
-      "kavlan-21": "2001:660:4406:6a0:509::2a",
-      "kavlan-3": "2001:660:4406:582:9::2a",
-      "kavlan-4": "2001:660:4406:590:9::2a",
-      "kavlan-5": "2001:660:4406:591:9::2a",
-      "kavlan-6": "2001:660:4406:592:9::2a",
-      "kavlan-7": "2001:660:4406:593:9::2a",
-      "kavlan-8": "2001:660:4406:594:9::2a",
-      "kavlan-9": "2001:660:4406:595:9::2a"
+      "kavlan-1": "2001:660:4406:580:9:0::2a",
+      "kavlan-11": "2001:660:4406:1a0:509:0::2a",
+      "kavlan-12": "2001:660:4406:2a0:509:0::2a",
+      "kavlan-13": "2001:660:4406:4a0:509:0::2a",
+      "kavlan-14": "2001:660:4406:5a0:509:0::2a",
+      "kavlan-16": "2001:660:4406:7a0:509:0::2a",
+      "kavlan-18": "2001:660:4406:8a0:509:0::2a",
+      "kavlan-2": "2001:660:4406:581:9:0::2a",
+      "kavlan-20": "2001:660:4406:3a0:509:0::2a",
+      "kavlan-21": "2001:660:4406:6a0:509:0::2a",
+      "kavlan-3": "2001:660:4406:582:9:0::2a",
+      "kavlan-4": "2001:660:4406:590:9:0::2a",
+      "kavlan-5": "2001:660:4406:591:9:0::2a",
+      "kavlan-6": "2001:660:4406:592:9:0::2a",
+      "kavlan-7": "2001:660:4406:593:9:0::2a",
+      "kavlan-8": "2001:660:4406:594:9:0::2a",
+      "kavlan-9": "2001:660:4406:595:9:0::2a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::2a",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.42",
-      "ip6": "2001:660:4406:500:9::2a",
+      "ip6": "2001:660:4406:500:9:0::2a",
       "kavlan": true,
       "mac": "e4:43:4b:1f:c2:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-43.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-43.json
index 2fa94b774cd..71188c99b0e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-43.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-43.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::2b",
-      "kavlan-11": "2001:660:4406:1a0:509::2b",
-      "kavlan-12": "2001:660:4406:2a0:509::2b",
-      "kavlan-13": "2001:660:4406:4a0:509::2b",
-      "kavlan-14": "2001:660:4406:5a0:509::2b",
-      "kavlan-16": "2001:660:4406:7a0:509::2b",
-      "kavlan-18": "2001:660:4406:8a0:509::2b",
-      "kavlan-2": "2001:660:4406:581:9::2b",
-      "kavlan-20": "2001:660:4406:3a0:509::2b",
-      "kavlan-21": "2001:660:4406:6a0:509::2b",
-      "kavlan-3": "2001:660:4406:582:9::2b",
-      "kavlan-4": "2001:660:4406:590:9::2b",
-      "kavlan-5": "2001:660:4406:591:9::2b",
-      "kavlan-6": "2001:660:4406:592:9::2b",
-      "kavlan-7": "2001:660:4406:593:9::2b",
-      "kavlan-8": "2001:660:4406:594:9::2b",
-      "kavlan-9": "2001:660:4406:595:9::2b"
+      "kavlan-1": "2001:660:4406:580:9:0::2b",
+      "kavlan-11": "2001:660:4406:1a0:509:0::2b",
+      "kavlan-12": "2001:660:4406:2a0:509:0::2b",
+      "kavlan-13": "2001:660:4406:4a0:509:0::2b",
+      "kavlan-14": "2001:660:4406:5a0:509:0::2b",
+      "kavlan-16": "2001:660:4406:7a0:509:0::2b",
+      "kavlan-18": "2001:660:4406:8a0:509:0::2b",
+      "kavlan-2": "2001:660:4406:581:9:0::2b",
+      "kavlan-20": "2001:660:4406:3a0:509:0::2b",
+      "kavlan-21": "2001:660:4406:6a0:509:0::2b",
+      "kavlan-3": "2001:660:4406:582:9:0::2b",
+      "kavlan-4": "2001:660:4406:590:9:0::2b",
+      "kavlan-5": "2001:660:4406:591:9:0::2b",
+      "kavlan-6": "2001:660:4406:592:9:0::2b",
+      "kavlan-7": "2001:660:4406:593:9:0::2b",
+      "kavlan-8": "2001:660:4406:594:9:0::2b",
+      "kavlan-9": "2001:660:4406:595:9:0::2b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::2b",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.43",
-      "ip6": "2001:660:4406:500:9::2b",
+      "ip6": "2001:660:4406:500:9:0::2b",
       "kavlan": true,
       "mac": "24:6e:96:03:09:e0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-44.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-44.json
index 3ef826000f0..0baa0dfe264 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-44.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-44.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::2c",
-      "kavlan-11": "2001:660:4406:1a0:509::2c",
-      "kavlan-12": "2001:660:4406:2a0:509::2c",
-      "kavlan-13": "2001:660:4406:4a0:509::2c",
-      "kavlan-14": "2001:660:4406:5a0:509::2c",
-      "kavlan-16": "2001:660:4406:7a0:509::2c",
-      "kavlan-18": "2001:660:4406:8a0:509::2c",
-      "kavlan-2": "2001:660:4406:581:9::2c",
-      "kavlan-20": "2001:660:4406:3a0:509::2c",
-      "kavlan-21": "2001:660:4406:6a0:509::2c",
-      "kavlan-3": "2001:660:4406:582:9::2c",
-      "kavlan-4": "2001:660:4406:590:9::2c",
-      "kavlan-5": "2001:660:4406:591:9::2c",
-      "kavlan-6": "2001:660:4406:592:9::2c",
-      "kavlan-7": "2001:660:4406:593:9::2c",
-      "kavlan-8": "2001:660:4406:594:9::2c",
-      "kavlan-9": "2001:660:4406:595:9::2c"
+      "kavlan-1": "2001:660:4406:580:9:0::2c",
+      "kavlan-11": "2001:660:4406:1a0:509:0::2c",
+      "kavlan-12": "2001:660:4406:2a0:509:0::2c",
+      "kavlan-13": "2001:660:4406:4a0:509:0::2c",
+      "kavlan-14": "2001:660:4406:5a0:509:0::2c",
+      "kavlan-16": "2001:660:4406:7a0:509:0::2c",
+      "kavlan-18": "2001:660:4406:8a0:509:0::2c",
+      "kavlan-2": "2001:660:4406:581:9:0::2c",
+      "kavlan-20": "2001:660:4406:3a0:509:0::2c",
+      "kavlan-21": "2001:660:4406:6a0:509:0::2c",
+      "kavlan-3": "2001:660:4406:582:9:0::2c",
+      "kavlan-4": "2001:660:4406:590:9:0::2c",
+      "kavlan-5": "2001:660:4406:591:9:0::2c",
+      "kavlan-6": "2001:660:4406:592:9:0::2c",
+      "kavlan-7": "2001:660:4406:593:9:0::2c",
+      "kavlan-8": "2001:660:4406:594:9:0::2c",
+      "kavlan-9": "2001:660:4406:595:9:0::2c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::2c",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.44",
-      "ip6": "2001:660:4406:500:9::2c",
+      "ip6": "2001:660:4406:500:9:0::2c",
       "kavlan": true,
       "mac": "24:6e:96:03:0c:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-45.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-45.json
index 1ece2f5e22f..82f71e245e2 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-45.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-45.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::2d",
-      "kavlan-11": "2001:660:4406:1a0:509::2d",
-      "kavlan-12": "2001:660:4406:2a0:509::2d",
-      "kavlan-13": "2001:660:4406:4a0:509::2d",
-      "kavlan-14": "2001:660:4406:5a0:509::2d",
-      "kavlan-16": "2001:660:4406:7a0:509::2d",
-      "kavlan-18": "2001:660:4406:8a0:509::2d",
-      "kavlan-2": "2001:660:4406:581:9::2d",
-      "kavlan-20": "2001:660:4406:3a0:509::2d",
-      "kavlan-21": "2001:660:4406:6a0:509::2d",
-      "kavlan-3": "2001:660:4406:582:9::2d",
-      "kavlan-4": "2001:660:4406:590:9::2d",
-      "kavlan-5": "2001:660:4406:591:9::2d",
-      "kavlan-6": "2001:660:4406:592:9::2d",
-      "kavlan-7": "2001:660:4406:593:9::2d",
-      "kavlan-8": "2001:660:4406:594:9::2d",
-      "kavlan-9": "2001:660:4406:595:9::2d"
+      "kavlan-1": "2001:660:4406:580:9:0::2d",
+      "kavlan-11": "2001:660:4406:1a0:509:0::2d",
+      "kavlan-12": "2001:660:4406:2a0:509:0::2d",
+      "kavlan-13": "2001:660:4406:4a0:509:0::2d",
+      "kavlan-14": "2001:660:4406:5a0:509:0::2d",
+      "kavlan-16": "2001:660:4406:7a0:509:0::2d",
+      "kavlan-18": "2001:660:4406:8a0:509:0::2d",
+      "kavlan-2": "2001:660:4406:581:9:0::2d",
+      "kavlan-20": "2001:660:4406:3a0:509:0::2d",
+      "kavlan-21": "2001:660:4406:6a0:509:0::2d",
+      "kavlan-3": "2001:660:4406:582:9:0::2d",
+      "kavlan-4": "2001:660:4406:590:9:0::2d",
+      "kavlan-5": "2001:660:4406:591:9:0::2d",
+      "kavlan-6": "2001:660:4406:592:9:0::2d",
+      "kavlan-7": "2001:660:4406:593:9:0::2d",
+      "kavlan-8": "2001:660:4406:594:9:0::2d",
+      "kavlan-9": "2001:660:4406:595:9:0::2d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::2d",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.45",
-      "ip6": "2001:660:4406:500:9::2d",
+      "ip6": "2001:660:4406:500:9:0::2d",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:68",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-46.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-46.json
index 655ec10de67..cd08a6f0514 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-46.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-46.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::2e",
-      "kavlan-11": "2001:660:4406:1a0:509::2e",
-      "kavlan-12": "2001:660:4406:2a0:509::2e",
-      "kavlan-13": "2001:660:4406:4a0:509::2e",
-      "kavlan-14": "2001:660:4406:5a0:509::2e",
-      "kavlan-16": "2001:660:4406:7a0:509::2e",
-      "kavlan-18": "2001:660:4406:8a0:509::2e",
-      "kavlan-2": "2001:660:4406:581:9::2e",
-      "kavlan-20": "2001:660:4406:3a0:509::2e",
-      "kavlan-21": "2001:660:4406:6a0:509::2e",
-      "kavlan-3": "2001:660:4406:582:9::2e",
-      "kavlan-4": "2001:660:4406:590:9::2e",
-      "kavlan-5": "2001:660:4406:591:9::2e",
-      "kavlan-6": "2001:660:4406:592:9::2e",
-      "kavlan-7": "2001:660:4406:593:9::2e",
-      "kavlan-8": "2001:660:4406:594:9::2e",
-      "kavlan-9": "2001:660:4406:595:9::2e"
+      "kavlan-1": "2001:660:4406:580:9:0::2e",
+      "kavlan-11": "2001:660:4406:1a0:509:0::2e",
+      "kavlan-12": "2001:660:4406:2a0:509:0::2e",
+      "kavlan-13": "2001:660:4406:4a0:509:0::2e",
+      "kavlan-14": "2001:660:4406:5a0:509:0::2e",
+      "kavlan-16": "2001:660:4406:7a0:509:0::2e",
+      "kavlan-18": "2001:660:4406:8a0:509:0::2e",
+      "kavlan-2": "2001:660:4406:581:9:0::2e",
+      "kavlan-20": "2001:660:4406:3a0:509:0::2e",
+      "kavlan-21": "2001:660:4406:6a0:509:0::2e",
+      "kavlan-3": "2001:660:4406:582:9:0::2e",
+      "kavlan-4": "2001:660:4406:590:9:0::2e",
+      "kavlan-5": "2001:660:4406:591:9:0::2e",
+      "kavlan-6": "2001:660:4406:592:9:0::2e",
+      "kavlan-7": "2001:660:4406:593:9:0::2e",
+      "kavlan-8": "2001:660:4406:594:9:0::2e",
+      "kavlan-9": "2001:660:4406:595:9:0::2e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::2e",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.46",
-      "ip6": "2001:660:4406:500:9::2e",
+      "ip6": "2001:660:4406:500:9:0::2e",
       "kavlan": true,
       "mac": "24:6e:96:03:10:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-47.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-47.json
index 50742be6ee7..1ca454a56df 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-47.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-47.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::2f",
-      "kavlan-11": "2001:660:4406:1a0:509::2f",
-      "kavlan-12": "2001:660:4406:2a0:509::2f",
-      "kavlan-13": "2001:660:4406:4a0:509::2f",
-      "kavlan-14": "2001:660:4406:5a0:509::2f",
-      "kavlan-16": "2001:660:4406:7a0:509::2f",
-      "kavlan-18": "2001:660:4406:8a0:509::2f",
-      "kavlan-2": "2001:660:4406:581:9::2f",
-      "kavlan-20": "2001:660:4406:3a0:509::2f",
-      "kavlan-21": "2001:660:4406:6a0:509::2f",
-      "kavlan-3": "2001:660:4406:582:9::2f",
-      "kavlan-4": "2001:660:4406:590:9::2f",
-      "kavlan-5": "2001:660:4406:591:9::2f",
-      "kavlan-6": "2001:660:4406:592:9::2f",
-      "kavlan-7": "2001:660:4406:593:9::2f",
-      "kavlan-8": "2001:660:4406:594:9::2f",
-      "kavlan-9": "2001:660:4406:595:9::2f"
+      "kavlan-1": "2001:660:4406:580:9:0::2f",
+      "kavlan-11": "2001:660:4406:1a0:509:0::2f",
+      "kavlan-12": "2001:660:4406:2a0:509:0::2f",
+      "kavlan-13": "2001:660:4406:4a0:509:0::2f",
+      "kavlan-14": "2001:660:4406:5a0:509:0::2f",
+      "kavlan-16": "2001:660:4406:7a0:509:0::2f",
+      "kavlan-18": "2001:660:4406:8a0:509:0::2f",
+      "kavlan-2": "2001:660:4406:581:9:0::2f",
+      "kavlan-20": "2001:660:4406:3a0:509:0::2f",
+      "kavlan-21": "2001:660:4406:6a0:509:0::2f",
+      "kavlan-3": "2001:660:4406:582:9:0::2f",
+      "kavlan-4": "2001:660:4406:590:9:0::2f",
+      "kavlan-5": "2001:660:4406:591:9:0::2f",
+      "kavlan-6": "2001:660:4406:592:9:0::2f",
+      "kavlan-7": "2001:660:4406:593:9:0::2f",
+      "kavlan-8": "2001:660:4406:594:9:0::2f",
+      "kavlan-9": "2001:660:4406:595:9:0::2f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::2f",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.47",
-      "ip6": "2001:660:4406:500:9::2f",
+      "ip6": "2001:660:4406:500:9:0::2f",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:40",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-48.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-48.json
index 5f0a13bf3d1..c88a9e224ac 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-48.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-48.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::30",
-      "kavlan-11": "2001:660:4406:1a0:509::30",
-      "kavlan-12": "2001:660:4406:2a0:509::30",
-      "kavlan-13": "2001:660:4406:4a0:509::30",
-      "kavlan-14": "2001:660:4406:5a0:509::30",
-      "kavlan-16": "2001:660:4406:7a0:509::30",
-      "kavlan-18": "2001:660:4406:8a0:509::30",
-      "kavlan-2": "2001:660:4406:581:9::30",
-      "kavlan-20": "2001:660:4406:3a0:509::30",
-      "kavlan-21": "2001:660:4406:6a0:509::30",
-      "kavlan-3": "2001:660:4406:582:9::30",
-      "kavlan-4": "2001:660:4406:590:9::30",
-      "kavlan-5": "2001:660:4406:591:9::30",
-      "kavlan-6": "2001:660:4406:592:9::30",
-      "kavlan-7": "2001:660:4406:593:9::30",
-      "kavlan-8": "2001:660:4406:594:9::30",
-      "kavlan-9": "2001:660:4406:595:9::30"
+      "kavlan-1": "2001:660:4406:580:9:0::30",
+      "kavlan-11": "2001:660:4406:1a0:509:0::30",
+      "kavlan-12": "2001:660:4406:2a0:509:0::30",
+      "kavlan-13": "2001:660:4406:4a0:509:0::30",
+      "kavlan-14": "2001:660:4406:5a0:509:0::30",
+      "kavlan-16": "2001:660:4406:7a0:509:0::30",
+      "kavlan-18": "2001:660:4406:8a0:509:0::30",
+      "kavlan-2": "2001:660:4406:581:9:0::30",
+      "kavlan-20": "2001:660:4406:3a0:509:0::30",
+      "kavlan-21": "2001:660:4406:6a0:509:0::30",
+      "kavlan-3": "2001:660:4406:582:9:0::30",
+      "kavlan-4": "2001:660:4406:590:9:0::30",
+      "kavlan-5": "2001:660:4406:591:9:0::30",
+      "kavlan-6": "2001:660:4406:592:9:0::30",
+      "kavlan-7": "2001:660:4406:593:9:0::30",
+      "kavlan-8": "2001:660:4406:594:9:0::30",
+      "kavlan-9": "2001:660:4406:595:9:0::30"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::30",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.48",
-      "ip6": "2001:660:4406:500:9::30",
+      "ip6": "2001:660:4406:500:9:0::30",
       "kavlan": true,
       "mac": "24:6e:96:03:0d:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json
index 2f418cd1595..14f6f777f7e 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-49.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::31",
-      "kavlan-11": "2001:660:4406:1a0:509::31",
-      "kavlan-12": "2001:660:4406:2a0:509::31",
-      "kavlan-13": "2001:660:4406:4a0:509::31",
-      "kavlan-14": "2001:660:4406:5a0:509::31",
-      "kavlan-16": "2001:660:4406:7a0:509::31",
-      "kavlan-18": "2001:660:4406:8a0:509::31",
-      "kavlan-2": "2001:660:4406:581:9::31",
-      "kavlan-20": "2001:660:4406:3a0:509::31",
-      "kavlan-21": "2001:660:4406:6a0:509::31",
-      "kavlan-3": "2001:660:4406:582:9::31",
-      "kavlan-4": "2001:660:4406:590:9::31",
-      "kavlan-5": "2001:660:4406:591:9::31",
-      "kavlan-6": "2001:660:4406:592:9::31",
-      "kavlan-7": "2001:660:4406:593:9::31",
-      "kavlan-8": "2001:660:4406:594:9::31",
-      "kavlan-9": "2001:660:4406:595:9::31"
+      "kavlan-1": "2001:660:4406:580:9:0::31",
+      "kavlan-11": "2001:660:4406:1a0:509:0::31",
+      "kavlan-12": "2001:660:4406:2a0:509:0::31",
+      "kavlan-13": "2001:660:4406:4a0:509:0::31",
+      "kavlan-14": "2001:660:4406:5a0:509:0::31",
+      "kavlan-16": "2001:660:4406:7a0:509:0::31",
+      "kavlan-18": "2001:660:4406:8a0:509:0::31",
+      "kavlan-2": "2001:660:4406:581:9:0::31",
+      "kavlan-20": "2001:660:4406:3a0:509:0::31",
+      "kavlan-21": "2001:660:4406:6a0:509:0::31",
+      "kavlan-3": "2001:660:4406:582:9:0::31",
+      "kavlan-4": "2001:660:4406:590:9:0::31",
+      "kavlan-5": "2001:660:4406:591:9:0::31",
+      "kavlan-6": "2001:660:4406:592:9:0::31",
+      "kavlan-7": "2001:660:4406:593:9:0::31",
+      "kavlan-8": "2001:660:4406:594:9:0::31",
+      "kavlan-9": "2001:660:4406:595:9:0::31"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::31",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.49",
-      "ip6": "2001:660:4406:500:9::31",
+      "ip6": "2001:660:4406:500:9:0::31",
       "kavlan": true,
       "mac": "24:6e:96:03:0e:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-5.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-5.json
index 262999fb950..35e3d24de4f 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-5.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-5.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::5",
-      "kavlan-11": "2001:660:4406:1a0:509::5",
-      "kavlan-12": "2001:660:4406:2a0:509::5",
-      "kavlan-13": "2001:660:4406:4a0:509::5",
-      "kavlan-14": "2001:660:4406:5a0:509::5",
-      "kavlan-16": "2001:660:4406:7a0:509::5",
-      "kavlan-18": "2001:660:4406:8a0:509::5",
-      "kavlan-2": "2001:660:4406:581:9::5",
-      "kavlan-20": "2001:660:4406:3a0:509::5",
-      "kavlan-21": "2001:660:4406:6a0:509::5",
-      "kavlan-3": "2001:660:4406:582:9::5",
-      "kavlan-4": "2001:660:4406:590:9::5",
-      "kavlan-5": "2001:660:4406:591:9::5",
-      "kavlan-6": "2001:660:4406:592:9::5",
-      "kavlan-7": "2001:660:4406:593:9::5",
-      "kavlan-8": "2001:660:4406:594:9::5",
-      "kavlan-9": "2001:660:4406:595:9::5"
+      "kavlan-1": "2001:660:4406:580:9:0::5",
+      "kavlan-11": "2001:660:4406:1a0:509:0::5",
+      "kavlan-12": "2001:660:4406:2a0:509:0::5",
+      "kavlan-13": "2001:660:4406:4a0:509:0::5",
+      "kavlan-14": "2001:660:4406:5a0:509:0::5",
+      "kavlan-16": "2001:660:4406:7a0:509:0::5",
+      "kavlan-18": "2001:660:4406:8a0:509:0::5",
+      "kavlan-2": "2001:660:4406:581:9:0::5",
+      "kavlan-20": "2001:660:4406:3a0:509:0::5",
+      "kavlan-21": "2001:660:4406:6a0:509:0::5",
+      "kavlan-3": "2001:660:4406:582:9:0::5",
+      "kavlan-4": "2001:660:4406:590:9:0::5",
+      "kavlan-5": "2001:660:4406:591:9:0::5",
+      "kavlan-6": "2001:660:4406:592:9:0::5",
+      "kavlan-7": "2001:660:4406:593:9:0::5",
+      "kavlan-8": "2001:660:4406:594:9:0::5",
+      "kavlan-9": "2001:660:4406:595:9:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::5",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.5",
-      "ip6": "2001:660:4406:500:9::5",
+      "ip6": "2001:660:4406:500:9:0::5",
       "kavlan": true,
       "mac": "24:6e:96:02:a0:a8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json
index b2b134cc48b..ac186a8e65f 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-50.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::32",
-      "kavlan-11": "2001:660:4406:1a0:509::32",
-      "kavlan-12": "2001:660:4406:2a0:509::32",
-      "kavlan-13": "2001:660:4406:4a0:509::32",
-      "kavlan-14": "2001:660:4406:5a0:509::32",
-      "kavlan-16": "2001:660:4406:7a0:509::32",
-      "kavlan-18": "2001:660:4406:8a0:509::32",
-      "kavlan-2": "2001:660:4406:581:9::32",
-      "kavlan-20": "2001:660:4406:3a0:509::32",
-      "kavlan-21": "2001:660:4406:6a0:509::32",
-      "kavlan-3": "2001:660:4406:582:9::32",
-      "kavlan-4": "2001:660:4406:590:9::32",
-      "kavlan-5": "2001:660:4406:591:9::32",
-      "kavlan-6": "2001:660:4406:592:9::32",
-      "kavlan-7": "2001:660:4406:593:9::32",
-      "kavlan-8": "2001:660:4406:594:9::32",
-      "kavlan-9": "2001:660:4406:595:9::32"
+      "kavlan-1": "2001:660:4406:580:9:0::32",
+      "kavlan-11": "2001:660:4406:1a0:509:0::32",
+      "kavlan-12": "2001:660:4406:2a0:509:0::32",
+      "kavlan-13": "2001:660:4406:4a0:509:0::32",
+      "kavlan-14": "2001:660:4406:5a0:509:0::32",
+      "kavlan-16": "2001:660:4406:7a0:509:0::32",
+      "kavlan-18": "2001:660:4406:8a0:509:0::32",
+      "kavlan-2": "2001:660:4406:581:9:0::32",
+      "kavlan-20": "2001:660:4406:3a0:509:0::32",
+      "kavlan-21": "2001:660:4406:6a0:509:0::32",
+      "kavlan-3": "2001:660:4406:582:9:0::32",
+      "kavlan-4": "2001:660:4406:590:9:0::32",
+      "kavlan-5": "2001:660:4406:591:9:0::32",
+      "kavlan-6": "2001:660:4406:592:9:0::32",
+      "kavlan-7": "2001:660:4406:593:9:0::32",
+      "kavlan-8": "2001:660:4406:594:9:0::32",
+      "kavlan-9": "2001:660:4406:595:9:0::32"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::32",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.50",
-      "ip6": "2001:660:4406:500:9::32",
+      "ip6": "2001:660:4406:500:9:0::32",
       "kavlan": true,
       "mac": "e4:43:4b:1f:c1:c8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.json
index adf0ab580c0..cc06be43087 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-51.json
@@ -98,23 +98,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::33",
-      "kavlan-11": "2001:660:4406:1a0:509::33",
-      "kavlan-12": "2001:660:4406:2a0:509::33",
-      "kavlan-13": "2001:660:4406:4a0:509::33",
-      "kavlan-14": "2001:660:4406:5a0:509::33",
-      "kavlan-16": "2001:660:4406:7a0:509::33",
-      "kavlan-18": "2001:660:4406:8a0:509::33",
-      "kavlan-2": "2001:660:4406:581:9::33",
-      "kavlan-20": "2001:660:4406:3a0:509::33",
-      "kavlan-21": "2001:660:4406:6a0:509::33",
-      "kavlan-3": "2001:660:4406:582:9::33",
-      "kavlan-4": "2001:660:4406:590:9::33",
-      "kavlan-5": "2001:660:4406:591:9::33",
-      "kavlan-6": "2001:660:4406:592:9::33",
-      "kavlan-7": "2001:660:4406:593:9::33",
-      "kavlan-8": "2001:660:4406:594:9::33",
-      "kavlan-9": "2001:660:4406:595:9::33"
+      "kavlan-1": "2001:660:4406:580:9:0::33",
+      "kavlan-11": "2001:660:4406:1a0:509:0::33",
+      "kavlan-12": "2001:660:4406:2a0:509:0::33",
+      "kavlan-13": "2001:660:4406:4a0:509:0::33",
+      "kavlan-14": "2001:660:4406:5a0:509:0::33",
+      "kavlan-16": "2001:660:4406:7a0:509:0::33",
+      "kavlan-18": "2001:660:4406:8a0:509:0::33",
+      "kavlan-2": "2001:660:4406:581:9:0::33",
+      "kavlan-20": "2001:660:4406:3a0:509:0::33",
+      "kavlan-21": "2001:660:4406:6a0:509:0::33",
+      "kavlan-3": "2001:660:4406:582:9:0::33",
+      "kavlan-4": "2001:660:4406:590:9:0::33",
+      "kavlan-5": "2001:660:4406:591:9:0::33",
+      "kavlan-6": "2001:660:4406:592:9:0::33",
+      "kavlan-7": "2001:660:4406:593:9:0::33",
+      "kavlan-8": "2001:660:4406:594:9:0::33",
+      "kavlan-9": "2001:660:4406:595:9:0::33"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::33",
@@ -189,7 +189,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.51",
-      "ip6": "2001:660:4406:500:9::33",
+      "ip6": "2001:660:4406:500:9:0::33",
       "kavlan": true,
       "mac": "24:6e:96:03:24:20",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-6.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-6.json
index 7f83a0d071e..6fb9e3231ca 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-6.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-6.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::6",
-      "kavlan-11": "2001:660:4406:1a0:509::6",
-      "kavlan-12": "2001:660:4406:2a0:509::6",
-      "kavlan-13": "2001:660:4406:4a0:509::6",
-      "kavlan-14": "2001:660:4406:5a0:509::6",
-      "kavlan-16": "2001:660:4406:7a0:509::6",
-      "kavlan-18": "2001:660:4406:8a0:509::6",
-      "kavlan-2": "2001:660:4406:581:9::6",
-      "kavlan-20": "2001:660:4406:3a0:509::6",
-      "kavlan-21": "2001:660:4406:6a0:509::6",
-      "kavlan-3": "2001:660:4406:582:9::6",
-      "kavlan-4": "2001:660:4406:590:9::6",
-      "kavlan-5": "2001:660:4406:591:9::6",
-      "kavlan-6": "2001:660:4406:592:9::6",
-      "kavlan-7": "2001:660:4406:593:9::6",
-      "kavlan-8": "2001:660:4406:594:9::6",
-      "kavlan-9": "2001:660:4406:595:9::6"
+      "kavlan-1": "2001:660:4406:580:9:0::6",
+      "kavlan-11": "2001:660:4406:1a0:509:0::6",
+      "kavlan-12": "2001:660:4406:2a0:509:0::6",
+      "kavlan-13": "2001:660:4406:4a0:509:0::6",
+      "kavlan-14": "2001:660:4406:5a0:509:0::6",
+      "kavlan-16": "2001:660:4406:7a0:509:0::6",
+      "kavlan-18": "2001:660:4406:8a0:509:0::6",
+      "kavlan-2": "2001:660:4406:581:9:0::6",
+      "kavlan-20": "2001:660:4406:3a0:509:0::6",
+      "kavlan-21": "2001:660:4406:6a0:509:0::6",
+      "kavlan-3": "2001:660:4406:582:9:0::6",
+      "kavlan-4": "2001:660:4406:590:9:0::6",
+      "kavlan-5": "2001:660:4406:591:9:0::6",
+      "kavlan-6": "2001:660:4406:592:9:0::6",
+      "kavlan-7": "2001:660:4406:593:9:0::6",
+      "kavlan-8": "2001:660:4406:594:9:0::6",
+      "kavlan-9": "2001:660:4406:595:9:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::6",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.6",
-      "ip6": "2001:660:4406:500:9::6",
+      "ip6": "2001:660:4406:500:9:0::6",
       "kavlan": true,
       "mac": "24:6e:96:03:0a:30",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-7.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-7.json
index 2a67ae64ade..46f51ffae26 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-7.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-7.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::7",
-      "kavlan-11": "2001:660:4406:1a0:509::7",
-      "kavlan-12": "2001:660:4406:2a0:509::7",
-      "kavlan-13": "2001:660:4406:4a0:509::7",
-      "kavlan-14": "2001:660:4406:5a0:509::7",
-      "kavlan-16": "2001:660:4406:7a0:509::7",
-      "kavlan-18": "2001:660:4406:8a0:509::7",
-      "kavlan-2": "2001:660:4406:581:9::7",
-      "kavlan-20": "2001:660:4406:3a0:509::7",
-      "kavlan-21": "2001:660:4406:6a0:509::7",
-      "kavlan-3": "2001:660:4406:582:9::7",
-      "kavlan-4": "2001:660:4406:590:9::7",
-      "kavlan-5": "2001:660:4406:591:9::7",
-      "kavlan-6": "2001:660:4406:592:9::7",
-      "kavlan-7": "2001:660:4406:593:9::7",
-      "kavlan-8": "2001:660:4406:594:9::7",
-      "kavlan-9": "2001:660:4406:595:9::7"
+      "kavlan-1": "2001:660:4406:580:9:0::7",
+      "kavlan-11": "2001:660:4406:1a0:509:0::7",
+      "kavlan-12": "2001:660:4406:2a0:509:0::7",
+      "kavlan-13": "2001:660:4406:4a0:509:0::7",
+      "kavlan-14": "2001:660:4406:5a0:509:0::7",
+      "kavlan-16": "2001:660:4406:7a0:509:0::7",
+      "kavlan-18": "2001:660:4406:8a0:509:0::7",
+      "kavlan-2": "2001:660:4406:581:9:0::7",
+      "kavlan-20": "2001:660:4406:3a0:509:0::7",
+      "kavlan-21": "2001:660:4406:6a0:509:0::7",
+      "kavlan-3": "2001:660:4406:582:9:0::7",
+      "kavlan-4": "2001:660:4406:590:9:0::7",
+      "kavlan-5": "2001:660:4406:591:9:0::7",
+      "kavlan-6": "2001:660:4406:592:9:0::7",
+      "kavlan-7": "2001:660:4406:593:9:0::7",
+      "kavlan-8": "2001:660:4406:594:9:0::7",
+      "kavlan-9": "2001:660:4406:595:9:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::7",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.7",
-      "ip6": "2001:660:4406:500:9::7",
+      "ip6": "2001:660:4406:500:9:0::7",
       "kavlan": true,
       "mac": "24:6e:96:03:10:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-8.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-8.json
index 245310bca18..23922774c6f 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-8.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-8.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::8",
-      "kavlan-11": "2001:660:4406:1a0:509::8",
-      "kavlan-12": "2001:660:4406:2a0:509::8",
-      "kavlan-13": "2001:660:4406:4a0:509::8",
-      "kavlan-14": "2001:660:4406:5a0:509::8",
-      "kavlan-16": "2001:660:4406:7a0:509::8",
-      "kavlan-18": "2001:660:4406:8a0:509::8",
-      "kavlan-2": "2001:660:4406:581:9::8",
-      "kavlan-20": "2001:660:4406:3a0:509::8",
-      "kavlan-21": "2001:660:4406:6a0:509::8",
-      "kavlan-3": "2001:660:4406:582:9::8",
-      "kavlan-4": "2001:660:4406:590:9::8",
-      "kavlan-5": "2001:660:4406:591:9::8",
-      "kavlan-6": "2001:660:4406:592:9::8",
-      "kavlan-7": "2001:660:4406:593:9::8",
-      "kavlan-8": "2001:660:4406:594:9::8",
-      "kavlan-9": "2001:660:4406:595:9::8"
+      "kavlan-1": "2001:660:4406:580:9:0::8",
+      "kavlan-11": "2001:660:4406:1a0:509:0::8",
+      "kavlan-12": "2001:660:4406:2a0:509:0::8",
+      "kavlan-13": "2001:660:4406:4a0:509:0::8",
+      "kavlan-14": "2001:660:4406:5a0:509:0::8",
+      "kavlan-16": "2001:660:4406:7a0:509:0::8",
+      "kavlan-18": "2001:660:4406:8a0:509:0::8",
+      "kavlan-2": "2001:660:4406:581:9:0::8",
+      "kavlan-20": "2001:660:4406:3a0:509:0::8",
+      "kavlan-21": "2001:660:4406:6a0:509:0::8",
+      "kavlan-3": "2001:660:4406:582:9:0::8",
+      "kavlan-4": "2001:660:4406:590:9:0::8",
+      "kavlan-5": "2001:660:4406:591:9:0::8",
+      "kavlan-6": "2001:660:4406:592:9:0::8",
+      "kavlan-7": "2001:660:4406:593:9:0::8",
+      "kavlan-8": "2001:660:4406:594:9:0::8",
+      "kavlan-9": "2001:660:4406:595:9:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::8",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.8",
-      "ip6": "2001:660:4406:500:9::8",
+      "ip6": "2001:660:4406:500:9:0::8",
       "kavlan": true,
       "mac": "24:6e:96:03:11:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-9.json b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-9.json
index 4f9bb0014d1..1669932ba28 100644
--- a/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-9.json
+++ b/data/grid5000/sites/nancy/clusters/grisou/nodes/grisou-9.json
@@ -117,23 +117,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:9::9",
-      "kavlan-11": "2001:660:4406:1a0:509::9",
-      "kavlan-12": "2001:660:4406:2a0:509::9",
-      "kavlan-13": "2001:660:4406:4a0:509::9",
-      "kavlan-14": "2001:660:4406:5a0:509::9",
-      "kavlan-16": "2001:660:4406:7a0:509::9",
-      "kavlan-18": "2001:660:4406:8a0:509::9",
-      "kavlan-2": "2001:660:4406:581:9::9",
-      "kavlan-20": "2001:660:4406:3a0:509::9",
-      "kavlan-21": "2001:660:4406:6a0:509::9",
-      "kavlan-3": "2001:660:4406:582:9::9",
-      "kavlan-4": "2001:660:4406:590:9::9",
-      "kavlan-5": "2001:660:4406:591:9::9",
-      "kavlan-6": "2001:660:4406:592:9::9",
-      "kavlan-7": "2001:660:4406:593:9::9",
-      "kavlan-8": "2001:660:4406:594:9::9",
-      "kavlan-9": "2001:660:4406:595:9::9"
+      "kavlan-1": "2001:660:4406:580:9:0::9",
+      "kavlan-11": "2001:660:4406:1a0:509:0::9",
+      "kavlan-12": "2001:660:4406:2a0:509:0::9",
+      "kavlan-13": "2001:660:4406:4a0:509:0::9",
+      "kavlan-14": "2001:660:4406:5a0:509:0::9",
+      "kavlan-16": "2001:660:4406:7a0:509:0::9",
+      "kavlan-18": "2001:660:4406:8a0:509:0::9",
+      "kavlan-2": "2001:660:4406:581:9:0::9",
+      "kavlan-20": "2001:660:4406:3a0:509:0::9",
+      "kavlan-21": "2001:660:4406:6a0:509:0::9",
+      "kavlan-3": "2001:660:4406:582:9:0::9",
+      "kavlan-4": "2001:660:4406:590:9:0::9",
+      "kavlan-5": "2001:660:4406:591:9:0::9",
+      "kavlan-6": "2001:660:4406:592:9:0::9",
+      "kavlan-7": "2001:660:4406:593:9:0::9",
+      "kavlan-8": "2001:660:4406:594:9:0::9",
+      "kavlan-9": "2001:660:4406:595:9:0::9"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:9:1::9",
@@ -227,7 +227,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.72.9",
-      "ip6": "2001:660:4406:500:9::9",
+      "ip6": "2001:660:4406:500:9:0::9",
       "kavlan": true,
       "mac": "24:6e:96:02:97:a8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
index 7a139a635f6..2385c0841d4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-1.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::1",
-      "kavlan-11": "2001:660:4406:1a0:503::1",
-      "kavlan-12": "2001:660:4406:2a0:503::1",
-      "kavlan-13": "2001:660:4406:4a0:503::1",
-      "kavlan-14": "2001:660:4406:5a0:503::1",
-      "kavlan-16": "2001:660:4406:7a0:503::1",
-      "kavlan-18": "2001:660:4406:8a0:503::1",
-      "kavlan-2": "2001:660:4406:581:3::1",
-      "kavlan-20": "2001:660:4406:3a0:503::1",
-      "kavlan-21": "2001:660:4406:6a0:503::1",
-      "kavlan-3": "2001:660:4406:582:3::1",
-      "kavlan-4": "2001:660:4406:590:3::1",
-      "kavlan-5": "2001:660:4406:591:3::1",
-      "kavlan-6": "2001:660:4406:592:3::1",
-      "kavlan-7": "2001:660:4406:593:3::1",
-      "kavlan-8": "2001:660:4406:594:3::1",
-      "kavlan-9": "2001:660:4406:595:3::1"
+      "kavlan-1": "2001:660:4406:580:3:0::1",
+      "kavlan-11": "2001:660:4406:1a0:503:0::1",
+      "kavlan-12": "2001:660:4406:2a0:503:0::1",
+      "kavlan-13": "2001:660:4406:4a0:503:0::1",
+      "kavlan-14": "2001:660:4406:5a0:503:0::1",
+      "kavlan-16": "2001:660:4406:7a0:503:0::1",
+      "kavlan-18": "2001:660:4406:8a0:503:0::1",
+      "kavlan-2": "2001:660:4406:581:3:0::1",
+      "kavlan-20": "2001:660:4406:3a0:503:0::1",
+      "kavlan-21": "2001:660:4406:6a0:503:0::1",
+      "kavlan-3": "2001:660:4406:582:3:0::1",
+      "kavlan-4": "2001:660:4406:590:3:0::1",
+      "kavlan-5": "2001:660:4406:591:3:0::1",
+      "kavlan-6": "2001:660:4406:592:3:0::1",
+      "kavlan-7": "2001:660:4406:593:3:0::1",
+      "kavlan-8": "2001:660:4406:594:3:0::1",
+      "kavlan-9": "2001:660:4406:595:3:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::1",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.1",
-      "ip6": "2001:660:4406:500:3::1",
+      "ip6": "2001:660:4406:500:3:0::1",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:36",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
index eecab329da8..1cf6d7cbc22 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-10.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::a",
-      "kavlan-11": "2001:660:4406:1a0:503::a",
-      "kavlan-12": "2001:660:4406:2a0:503::a",
-      "kavlan-13": "2001:660:4406:4a0:503::a",
-      "kavlan-14": "2001:660:4406:5a0:503::a",
-      "kavlan-16": "2001:660:4406:7a0:503::a",
-      "kavlan-18": "2001:660:4406:8a0:503::a",
-      "kavlan-2": "2001:660:4406:581:3::a",
-      "kavlan-20": "2001:660:4406:3a0:503::a",
-      "kavlan-21": "2001:660:4406:6a0:503::a",
-      "kavlan-3": "2001:660:4406:582:3::a",
-      "kavlan-4": "2001:660:4406:590:3::a",
-      "kavlan-5": "2001:660:4406:591:3::a",
-      "kavlan-6": "2001:660:4406:592:3::a",
-      "kavlan-7": "2001:660:4406:593:3::a",
-      "kavlan-8": "2001:660:4406:594:3::a",
-      "kavlan-9": "2001:660:4406:595:3::a"
+      "kavlan-1": "2001:660:4406:580:3:0::a",
+      "kavlan-11": "2001:660:4406:1a0:503:0::a",
+      "kavlan-12": "2001:660:4406:2a0:503:0::a",
+      "kavlan-13": "2001:660:4406:4a0:503:0::a",
+      "kavlan-14": "2001:660:4406:5a0:503:0::a",
+      "kavlan-16": "2001:660:4406:7a0:503:0::a",
+      "kavlan-18": "2001:660:4406:8a0:503:0::a",
+      "kavlan-2": "2001:660:4406:581:3:0::a",
+      "kavlan-20": "2001:660:4406:3a0:503:0::a",
+      "kavlan-21": "2001:660:4406:6a0:503:0::a",
+      "kavlan-3": "2001:660:4406:582:3:0::a",
+      "kavlan-4": "2001:660:4406:590:3:0::a",
+      "kavlan-5": "2001:660:4406:591:3:0::a",
+      "kavlan-6": "2001:660:4406:592:3:0::a",
+      "kavlan-7": "2001:660:4406:593:3:0::a",
+      "kavlan-8": "2001:660:4406:594:3:0::a",
+      "kavlan-9": "2001:660:4406:595:3:0::a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::a",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.10",
-      "ip6": "2001:660:4406:500:3::a",
+      "ip6": "2001:660:4406:500:3:0::a",
       "kavlan": true,
       "mac": "98:03:9b:b0:b6:c6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
index 91b571ce9df..226c9f9c5c4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-100.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::64",
-      "kavlan-11": "2001:660:4406:1a0:503::64",
-      "kavlan-12": "2001:660:4406:2a0:503::64",
-      "kavlan-13": "2001:660:4406:4a0:503::64",
-      "kavlan-14": "2001:660:4406:5a0:503::64",
-      "kavlan-16": "2001:660:4406:7a0:503::64",
-      "kavlan-18": "2001:660:4406:8a0:503::64",
-      "kavlan-2": "2001:660:4406:581:3::64",
-      "kavlan-20": "2001:660:4406:3a0:503::64",
-      "kavlan-21": "2001:660:4406:6a0:503::64",
-      "kavlan-3": "2001:660:4406:582:3::64",
-      "kavlan-4": "2001:660:4406:590:3::64",
-      "kavlan-5": "2001:660:4406:591:3::64",
-      "kavlan-6": "2001:660:4406:592:3::64",
-      "kavlan-7": "2001:660:4406:593:3::64",
-      "kavlan-8": "2001:660:4406:594:3::64",
-      "kavlan-9": "2001:660:4406:595:3::64"
+      "kavlan-1": "2001:660:4406:580:3:0::64",
+      "kavlan-11": "2001:660:4406:1a0:503:0::64",
+      "kavlan-12": "2001:660:4406:2a0:503:0::64",
+      "kavlan-13": "2001:660:4406:4a0:503:0::64",
+      "kavlan-14": "2001:660:4406:5a0:503:0::64",
+      "kavlan-16": "2001:660:4406:7a0:503:0::64",
+      "kavlan-18": "2001:660:4406:8a0:503:0::64",
+      "kavlan-2": "2001:660:4406:581:3:0::64",
+      "kavlan-20": "2001:660:4406:3a0:503:0::64",
+      "kavlan-21": "2001:660:4406:6a0:503:0::64",
+      "kavlan-3": "2001:660:4406:582:3:0::64",
+      "kavlan-4": "2001:660:4406:590:3:0::64",
+      "kavlan-5": "2001:660:4406:591:3:0::64",
+      "kavlan-6": "2001:660:4406:592:3:0::64",
+      "kavlan-7": "2001:660:4406:593:3:0::64",
+      "kavlan-8": "2001:660:4406:594:3:0::64",
+      "kavlan-9": "2001:660:4406:595:3:0::64"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::64",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.100",
-      "ip6": "2001:660:4406:500:3::64",
+      "ip6": "2001:660:4406:500:3:0::64",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:0e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
index eb9f3855475..87c38aea525 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-101.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::65",
-      "kavlan-11": "2001:660:4406:1a0:503::65",
-      "kavlan-12": "2001:660:4406:2a0:503::65",
-      "kavlan-13": "2001:660:4406:4a0:503::65",
-      "kavlan-14": "2001:660:4406:5a0:503::65",
-      "kavlan-16": "2001:660:4406:7a0:503::65",
-      "kavlan-18": "2001:660:4406:8a0:503::65",
-      "kavlan-2": "2001:660:4406:581:3::65",
-      "kavlan-20": "2001:660:4406:3a0:503::65",
-      "kavlan-21": "2001:660:4406:6a0:503::65",
-      "kavlan-3": "2001:660:4406:582:3::65",
-      "kavlan-4": "2001:660:4406:590:3::65",
-      "kavlan-5": "2001:660:4406:591:3::65",
-      "kavlan-6": "2001:660:4406:592:3::65",
-      "kavlan-7": "2001:660:4406:593:3::65",
-      "kavlan-8": "2001:660:4406:594:3::65",
-      "kavlan-9": "2001:660:4406:595:3::65"
+      "kavlan-1": "2001:660:4406:580:3:0::65",
+      "kavlan-11": "2001:660:4406:1a0:503:0::65",
+      "kavlan-12": "2001:660:4406:2a0:503:0::65",
+      "kavlan-13": "2001:660:4406:4a0:503:0::65",
+      "kavlan-14": "2001:660:4406:5a0:503:0::65",
+      "kavlan-16": "2001:660:4406:7a0:503:0::65",
+      "kavlan-18": "2001:660:4406:8a0:503:0::65",
+      "kavlan-2": "2001:660:4406:581:3:0::65",
+      "kavlan-20": "2001:660:4406:3a0:503:0::65",
+      "kavlan-21": "2001:660:4406:6a0:503:0::65",
+      "kavlan-3": "2001:660:4406:582:3:0::65",
+      "kavlan-4": "2001:660:4406:590:3:0::65",
+      "kavlan-5": "2001:660:4406:591:3:0::65",
+      "kavlan-6": "2001:660:4406:592:3:0::65",
+      "kavlan-7": "2001:660:4406:593:3:0::65",
+      "kavlan-8": "2001:660:4406:594:3:0::65",
+      "kavlan-9": "2001:660:4406:595:3:0::65"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::65",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.101",
-      "ip6": "2001:660:4406:500:3::65",
+      "ip6": "2001:660:4406:500:3:0::65",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:76",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
index 19bfcc406dd..e13d8ca06be 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-102.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::66",
-      "kavlan-11": "2001:660:4406:1a0:503::66",
-      "kavlan-12": "2001:660:4406:2a0:503::66",
-      "kavlan-13": "2001:660:4406:4a0:503::66",
-      "kavlan-14": "2001:660:4406:5a0:503::66",
-      "kavlan-16": "2001:660:4406:7a0:503::66",
-      "kavlan-18": "2001:660:4406:8a0:503::66",
-      "kavlan-2": "2001:660:4406:581:3::66",
-      "kavlan-20": "2001:660:4406:3a0:503::66",
-      "kavlan-21": "2001:660:4406:6a0:503::66",
-      "kavlan-3": "2001:660:4406:582:3::66",
-      "kavlan-4": "2001:660:4406:590:3::66",
-      "kavlan-5": "2001:660:4406:591:3::66",
-      "kavlan-6": "2001:660:4406:592:3::66",
-      "kavlan-7": "2001:660:4406:593:3::66",
-      "kavlan-8": "2001:660:4406:594:3::66",
-      "kavlan-9": "2001:660:4406:595:3::66"
+      "kavlan-1": "2001:660:4406:580:3:0::66",
+      "kavlan-11": "2001:660:4406:1a0:503:0::66",
+      "kavlan-12": "2001:660:4406:2a0:503:0::66",
+      "kavlan-13": "2001:660:4406:4a0:503:0::66",
+      "kavlan-14": "2001:660:4406:5a0:503:0::66",
+      "kavlan-16": "2001:660:4406:7a0:503:0::66",
+      "kavlan-18": "2001:660:4406:8a0:503:0::66",
+      "kavlan-2": "2001:660:4406:581:3:0::66",
+      "kavlan-20": "2001:660:4406:3a0:503:0::66",
+      "kavlan-21": "2001:660:4406:6a0:503:0::66",
+      "kavlan-3": "2001:660:4406:582:3:0::66",
+      "kavlan-4": "2001:660:4406:590:3:0::66",
+      "kavlan-5": "2001:660:4406:591:3:0::66",
+      "kavlan-6": "2001:660:4406:592:3:0::66",
+      "kavlan-7": "2001:660:4406:593:3:0::66",
+      "kavlan-8": "2001:660:4406:594:3:0::66",
+      "kavlan-9": "2001:660:4406:595:3:0::66"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::66",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.102",
-      "ip6": "2001:660:4406:500:3::66",
+      "ip6": "2001:660:4406:500:3:0::66",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:1e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
index 4a0011878ec..98c21fc23e9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-103.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::67",
-      "kavlan-11": "2001:660:4406:1a0:503::67",
-      "kavlan-12": "2001:660:4406:2a0:503::67",
-      "kavlan-13": "2001:660:4406:4a0:503::67",
-      "kavlan-14": "2001:660:4406:5a0:503::67",
-      "kavlan-16": "2001:660:4406:7a0:503::67",
-      "kavlan-18": "2001:660:4406:8a0:503::67",
-      "kavlan-2": "2001:660:4406:581:3::67",
-      "kavlan-20": "2001:660:4406:3a0:503::67",
-      "kavlan-21": "2001:660:4406:6a0:503::67",
-      "kavlan-3": "2001:660:4406:582:3::67",
-      "kavlan-4": "2001:660:4406:590:3::67",
-      "kavlan-5": "2001:660:4406:591:3::67",
-      "kavlan-6": "2001:660:4406:592:3::67",
-      "kavlan-7": "2001:660:4406:593:3::67",
-      "kavlan-8": "2001:660:4406:594:3::67",
-      "kavlan-9": "2001:660:4406:595:3::67"
+      "kavlan-1": "2001:660:4406:580:3:0::67",
+      "kavlan-11": "2001:660:4406:1a0:503:0::67",
+      "kavlan-12": "2001:660:4406:2a0:503:0::67",
+      "kavlan-13": "2001:660:4406:4a0:503:0::67",
+      "kavlan-14": "2001:660:4406:5a0:503:0::67",
+      "kavlan-16": "2001:660:4406:7a0:503:0::67",
+      "kavlan-18": "2001:660:4406:8a0:503:0::67",
+      "kavlan-2": "2001:660:4406:581:3:0::67",
+      "kavlan-20": "2001:660:4406:3a0:503:0::67",
+      "kavlan-21": "2001:660:4406:6a0:503:0::67",
+      "kavlan-3": "2001:660:4406:582:3:0::67",
+      "kavlan-4": "2001:660:4406:590:3:0::67",
+      "kavlan-5": "2001:660:4406:591:3:0::67",
+      "kavlan-6": "2001:660:4406:592:3:0::67",
+      "kavlan-7": "2001:660:4406:593:3:0::67",
+      "kavlan-8": "2001:660:4406:594:3:0::67",
+      "kavlan-9": "2001:660:4406:595:3:0::67"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::67",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.103",
-      "ip6": "2001:660:4406:500:3::67",
+      "ip6": "2001:660:4406:500:3:0::67",
       "kavlan": true,
       "mac": "98:03:9b:b0:b6:46",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
index a823d5e2701..d1c00b25440 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-104.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::68",
-      "kavlan-11": "2001:660:4406:1a0:503::68",
-      "kavlan-12": "2001:660:4406:2a0:503::68",
-      "kavlan-13": "2001:660:4406:4a0:503::68",
-      "kavlan-14": "2001:660:4406:5a0:503::68",
-      "kavlan-16": "2001:660:4406:7a0:503::68",
-      "kavlan-18": "2001:660:4406:8a0:503::68",
-      "kavlan-2": "2001:660:4406:581:3::68",
-      "kavlan-20": "2001:660:4406:3a0:503::68",
-      "kavlan-21": "2001:660:4406:6a0:503::68",
-      "kavlan-3": "2001:660:4406:582:3::68",
-      "kavlan-4": "2001:660:4406:590:3::68",
-      "kavlan-5": "2001:660:4406:591:3::68",
-      "kavlan-6": "2001:660:4406:592:3::68",
-      "kavlan-7": "2001:660:4406:593:3::68",
-      "kavlan-8": "2001:660:4406:594:3::68",
-      "kavlan-9": "2001:660:4406:595:3::68"
+      "kavlan-1": "2001:660:4406:580:3:0::68",
+      "kavlan-11": "2001:660:4406:1a0:503:0::68",
+      "kavlan-12": "2001:660:4406:2a0:503:0::68",
+      "kavlan-13": "2001:660:4406:4a0:503:0::68",
+      "kavlan-14": "2001:660:4406:5a0:503:0::68",
+      "kavlan-16": "2001:660:4406:7a0:503:0::68",
+      "kavlan-18": "2001:660:4406:8a0:503:0::68",
+      "kavlan-2": "2001:660:4406:581:3:0::68",
+      "kavlan-20": "2001:660:4406:3a0:503:0::68",
+      "kavlan-21": "2001:660:4406:6a0:503:0::68",
+      "kavlan-3": "2001:660:4406:582:3:0::68",
+      "kavlan-4": "2001:660:4406:590:3:0::68",
+      "kavlan-5": "2001:660:4406:591:3:0::68",
+      "kavlan-6": "2001:660:4406:592:3:0::68",
+      "kavlan-7": "2001:660:4406:593:3:0::68",
+      "kavlan-8": "2001:660:4406:594:3:0::68",
+      "kavlan-9": "2001:660:4406:595:3:0::68"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::68",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.104",
-      "ip6": "2001:660:4406:500:3::68",
+      "ip6": "2001:660:4406:500:3:0::68",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:16",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
index 6545e14b501..cdccade6c2a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-105.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::69",
-      "kavlan-11": "2001:660:4406:1a0:503::69",
-      "kavlan-12": "2001:660:4406:2a0:503::69",
-      "kavlan-13": "2001:660:4406:4a0:503::69",
-      "kavlan-14": "2001:660:4406:5a0:503::69",
-      "kavlan-16": "2001:660:4406:7a0:503::69",
-      "kavlan-18": "2001:660:4406:8a0:503::69",
-      "kavlan-2": "2001:660:4406:581:3::69",
-      "kavlan-20": "2001:660:4406:3a0:503::69",
-      "kavlan-21": "2001:660:4406:6a0:503::69",
-      "kavlan-3": "2001:660:4406:582:3::69",
-      "kavlan-4": "2001:660:4406:590:3::69",
-      "kavlan-5": "2001:660:4406:591:3::69",
-      "kavlan-6": "2001:660:4406:592:3::69",
-      "kavlan-7": "2001:660:4406:593:3::69",
-      "kavlan-8": "2001:660:4406:594:3::69",
-      "kavlan-9": "2001:660:4406:595:3::69"
+      "kavlan-1": "2001:660:4406:580:3:0::69",
+      "kavlan-11": "2001:660:4406:1a0:503:0::69",
+      "kavlan-12": "2001:660:4406:2a0:503:0::69",
+      "kavlan-13": "2001:660:4406:4a0:503:0::69",
+      "kavlan-14": "2001:660:4406:5a0:503:0::69",
+      "kavlan-16": "2001:660:4406:7a0:503:0::69",
+      "kavlan-18": "2001:660:4406:8a0:503:0::69",
+      "kavlan-2": "2001:660:4406:581:3:0::69",
+      "kavlan-20": "2001:660:4406:3a0:503:0::69",
+      "kavlan-21": "2001:660:4406:6a0:503:0::69",
+      "kavlan-3": "2001:660:4406:582:3:0::69",
+      "kavlan-4": "2001:660:4406:590:3:0::69",
+      "kavlan-5": "2001:660:4406:591:3:0::69",
+      "kavlan-6": "2001:660:4406:592:3:0::69",
+      "kavlan-7": "2001:660:4406:593:3:0::69",
+      "kavlan-8": "2001:660:4406:594:3:0::69",
+      "kavlan-9": "2001:660:4406:595:3:0::69"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::69",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.105",
-      "ip6": "2001:660:4406:500:3::69",
+      "ip6": "2001:660:4406:500:3:0::69",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:5e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
index 6b2573236db..385f6740112 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-106.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::6a",
-      "kavlan-11": "2001:660:4406:1a0:503::6a",
-      "kavlan-12": "2001:660:4406:2a0:503::6a",
-      "kavlan-13": "2001:660:4406:4a0:503::6a",
-      "kavlan-14": "2001:660:4406:5a0:503::6a",
-      "kavlan-16": "2001:660:4406:7a0:503::6a",
-      "kavlan-18": "2001:660:4406:8a0:503::6a",
-      "kavlan-2": "2001:660:4406:581:3::6a",
-      "kavlan-20": "2001:660:4406:3a0:503::6a",
-      "kavlan-21": "2001:660:4406:6a0:503::6a",
-      "kavlan-3": "2001:660:4406:582:3::6a",
-      "kavlan-4": "2001:660:4406:590:3::6a",
-      "kavlan-5": "2001:660:4406:591:3::6a",
-      "kavlan-6": "2001:660:4406:592:3::6a",
-      "kavlan-7": "2001:660:4406:593:3::6a",
-      "kavlan-8": "2001:660:4406:594:3::6a",
-      "kavlan-9": "2001:660:4406:595:3::6a"
+      "kavlan-1": "2001:660:4406:580:3:0::6a",
+      "kavlan-11": "2001:660:4406:1a0:503:0::6a",
+      "kavlan-12": "2001:660:4406:2a0:503:0::6a",
+      "kavlan-13": "2001:660:4406:4a0:503:0::6a",
+      "kavlan-14": "2001:660:4406:5a0:503:0::6a",
+      "kavlan-16": "2001:660:4406:7a0:503:0::6a",
+      "kavlan-18": "2001:660:4406:8a0:503:0::6a",
+      "kavlan-2": "2001:660:4406:581:3:0::6a",
+      "kavlan-20": "2001:660:4406:3a0:503:0::6a",
+      "kavlan-21": "2001:660:4406:6a0:503:0::6a",
+      "kavlan-3": "2001:660:4406:582:3:0::6a",
+      "kavlan-4": "2001:660:4406:590:3:0::6a",
+      "kavlan-5": "2001:660:4406:591:3:0::6a",
+      "kavlan-6": "2001:660:4406:592:3:0::6a",
+      "kavlan-7": "2001:660:4406:593:3:0::6a",
+      "kavlan-8": "2001:660:4406:594:3:0::6a",
+      "kavlan-9": "2001:660:4406:595:3:0::6a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::6a",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.106",
-      "ip6": "2001:660:4406:500:3::6a",
+      "ip6": "2001:660:4406:500:3:0::6a",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
index 21978d200b3..1c23963c5cf 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-107.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::6b",
-      "kavlan-11": "2001:660:4406:1a0:503::6b",
-      "kavlan-12": "2001:660:4406:2a0:503::6b",
-      "kavlan-13": "2001:660:4406:4a0:503::6b",
-      "kavlan-14": "2001:660:4406:5a0:503::6b",
-      "kavlan-16": "2001:660:4406:7a0:503::6b",
-      "kavlan-18": "2001:660:4406:8a0:503::6b",
-      "kavlan-2": "2001:660:4406:581:3::6b",
-      "kavlan-20": "2001:660:4406:3a0:503::6b",
-      "kavlan-21": "2001:660:4406:6a0:503::6b",
-      "kavlan-3": "2001:660:4406:582:3::6b",
-      "kavlan-4": "2001:660:4406:590:3::6b",
-      "kavlan-5": "2001:660:4406:591:3::6b",
-      "kavlan-6": "2001:660:4406:592:3::6b",
-      "kavlan-7": "2001:660:4406:593:3::6b",
-      "kavlan-8": "2001:660:4406:594:3::6b",
-      "kavlan-9": "2001:660:4406:595:3::6b"
+      "kavlan-1": "2001:660:4406:580:3:0::6b",
+      "kavlan-11": "2001:660:4406:1a0:503:0::6b",
+      "kavlan-12": "2001:660:4406:2a0:503:0::6b",
+      "kavlan-13": "2001:660:4406:4a0:503:0::6b",
+      "kavlan-14": "2001:660:4406:5a0:503:0::6b",
+      "kavlan-16": "2001:660:4406:7a0:503:0::6b",
+      "kavlan-18": "2001:660:4406:8a0:503:0::6b",
+      "kavlan-2": "2001:660:4406:581:3:0::6b",
+      "kavlan-20": "2001:660:4406:3a0:503:0::6b",
+      "kavlan-21": "2001:660:4406:6a0:503:0::6b",
+      "kavlan-3": "2001:660:4406:582:3:0::6b",
+      "kavlan-4": "2001:660:4406:590:3:0::6b",
+      "kavlan-5": "2001:660:4406:591:3:0::6b",
+      "kavlan-6": "2001:660:4406:592:3:0::6b",
+      "kavlan-7": "2001:660:4406:593:3:0::6b",
+      "kavlan-8": "2001:660:4406:594:3:0::6b",
+      "kavlan-9": "2001:660:4406:595:3:0::6b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::6b",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.107",
-      "ip6": "2001:660:4406:500:3::6b",
+      "ip6": "2001:660:4406:500:3:0::6b",
       "kavlan": true,
       "mac": "98:03:9b:b0:9c:da",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
index 43c80041140..48716d3dd38 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-108.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::6c",
-      "kavlan-11": "2001:660:4406:1a0:503::6c",
-      "kavlan-12": "2001:660:4406:2a0:503::6c",
-      "kavlan-13": "2001:660:4406:4a0:503::6c",
-      "kavlan-14": "2001:660:4406:5a0:503::6c",
-      "kavlan-16": "2001:660:4406:7a0:503::6c",
-      "kavlan-18": "2001:660:4406:8a0:503::6c",
-      "kavlan-2": "2001:660:4406:581:3::6c",
-      "kavlan-20": "2001:660:4406:3a0:503::6c",
-      "kavlan-21": "2001:660:4406:6a0:503::6c",
-      "kavlan-3": "2001:660:4406:582:3::6c",
-      "kavlan-4": "2001:660:4406:590:3::6c",
-      "kavlan-5": "2001:660:4406:591:3::6c",
-      "kavlan-6": "2001:660:4406:592:3::6c",
-      "kavlan-7": "2001:660:4406:593:3::6c",
-      "kavlan-8": "2001:660:4406:594:3::6c",
-      "kavlan-9": "2001:660:4406:595:3::6c"
+      "kavlan-1": "2001:660:4406:580:3:0::6c",
+      "kavlan-11": "2001:660:4406:1a0:503:0::6c",
+      "kavlan-12": "2001:660:4406:2a0:503:0::6c",
+      "kavlan-13": "2001:660:4406:4a0:503:0::6c",
+      "kavlan-14": "2001:660:4406:5a0:503:0::6c",
+      "kavlan-16": "2001:660:4406:7a0:503:0::6c",
+      "kavlan-18": "2001:660:4406:8a0:503:0::6c",
+      "kavlan-2": "2001:660:4406:581:3:0::6c",
+      "kavlan-20": "2001:660:4406:3a0:503:0::6c",
+      "kavlan-21": "2001:660:4406:6a0:503:0::6c",
+      "kavlan-3": "2001:660:4406:582:3:0::6c",
+      "kavlan-4": "2001:660:4406:590:3:0::6c",
+      "kavlan-5": "2001:660:4406:591:3:0::6c",
+      "kavlan-6": "2001:660:4406:592:3:0::6c",
+      "kavlan-7": "2001:660:4406:593:3:0::6c",
+      "kavlan-8": "2001:660:4406:594:3:0::6c",
+      "kavlan-9": "2001:660:4406:595:3:0::6c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::6c",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.108",
-      "ip6": "2001:660:4406:500:3::6c",
+      "ip6": "2001:660:4406:500:3:0::6c",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:c6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
index a875d2f23cc..7c772917296 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-109.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::6d",
-      "kavlan-11": "2001:660:4406:1a0:503::6d",
-      "kavlan-12": "2001:660:4406:2a0:503::6d",
-      "kavlan-13": "2001:660:4406:4a0:503::6d",
-      "kavlan-14": "2001:660:4406:5a0:503::6d",
-      "kavlan-16": "2001:660:4406:7a0:503::6d",
-      "kavlan-18": "2001:660:4406:8a0:503::6d",
-      "kavlan-2": "2001:660:4406:581:3::6d",
-      "kavlan-20": "2001:660:4406:3a0:503::6d",
-      "kavlan-21": "2001:660:4406:6a0:503::6d",
-      "kavlan-3": "2001:660:4406:582:3::6d",
-      "kavlan-4": "2001:660:4406:590:3::6d",
-      "kavlan-5": "2001:660:4406:591:3::6d",
-      "kavlan-6": "2001:660:4406:592:3::6d",
-      "kavlan-7": "2001:660:4406:593:3::6d",
-      "kavlan-8": "2001:660:4406:594:3::6d",
-      "kavlan-9": "2001:660:4406:595:3::6d"
+      "kavlan-1": "2001:660:4406:580:3:0::6d",
+      "kavlan-11": "2001:660:4406:1a0:503:0::6d",
+      "kavlan-12": "2001:660:4406:2a0:503:0::6d",
+      "kavlan-13": "2001:660:4406:4a0:503:0::6d",
+      "kavlan-14": "2001:660:4406:5a0:503:0::6d",
+      "kavlan-16": "2001:660:4406:7a0:503:0::6d",
+      "kavlan-18": "2001:660:4406:8a0:503:0::6d",
+      "kavlan-2": "2001:660:4406:581:3:0::6d",
+      "kavlan-20": "2001:660:4406:3a0:503:0::6d",
+      "kavlan-21": "2001:660:4406:6a0:503:0::6d",
+      "kavlan-3": "2001:660:4406:582:3:0::6d",
+      "kavlan-4": "2001:660:4406:590:3:0::6d",
+      "kavlan-5": "2001:660:4406:591:3:0::6d",
+      "kavlan-6": "2001:660:4406:592:3:0::6d",
+      "kavlan-7": "2001:660:4406:593:3:0::6d",
+      "kavlan-8": "2001:660:4406:594:3:0::6d",
+      "kavlan-9": "2001:660:4406:595:3:0::6d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::6d",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.109",
-      "ip6": "2001:660:4406:500:3::6d",
+      "ip6": "2001:660:4406:500:3:0::6d",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:72",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
index df636f35a85..764bf7b6a1c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-11.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::b",
-      "kavlan-11": "2001:660:4406:1a0:503::b",
-      "kavlan-12": "2001:660:4406:2a0:503::b",
-      "kavlan-13": "2001:660:4406:4a0:503::b",
-      "kavlan-14": "2001:660:4406:5a0:503::b",
-      "kavlan-16": "2001:660:4406:7a0:503::b",
-      "kavlan-18": "2001:660:4406:8a0:503::b",
-      "kavlan-2": "2001:660:4406:581:3::b",
-      "kavlan-20": "2001:660:4406:3a0:503::b",
-      "kavlan-21": "2001:660:4406:6a0:503::b",
-      "kavlan-3": "2001:660:4406:582:3::b",
-      "kavlan-4": "2001:660:4406:590:3::b",
-      "kavlan-5": "2001:660:4406:591:3::b",
-      "kavlan-6": "2001:660:4406:592:3::b",
-      "kavlan-7": "2001:660:4406:593:3::b",
-      "kavlan-8": "2001:660:4406:594:3::b",
-      "kavlan-9": "2001:660:4406:595:3::b"
+      "kavlan-1": "2001:660:4406:580:3:0::b",
+      "kavlan-11": "2001:660:4406:1a0:503:0::b",
+      "kavlan-12": "2001:660:4406:2a0:503:0::b",
+      "kavlan-13": "2001:660:4406:4a0:503:0::b",
+      "kavlan-14": "2001:660:4406:5a0:503:0::b",
+      "kavlan-16": "2001:660:4406:7a0:503:0::b",
+      "kavlan-18": "2001:660:4406:8a0:503:0::b",
+      "kavlan-2": "2001:660:4406:581:3:0::b",
+      "kavlan-20": "2001:660:4406:3a0:503:0::b",
+      "kavlan-21": "2001:660:4406:6a0:503:0::b",
+      "kavlan-3": "2001:660:4406:582:3:0::b",
+      "kavlan-4": "2001:660:4406:590:3:0::b",
+      "kavlan-5": "2001:660:4406:591:3:0::b",
+      "kavlan-6": "2001:660:4406:592:3:0::b",
+      "kavlan-7": "2001:660:4406:593:3:0::b",
+      "kavlan-8": "2001:660:4406:594:3:0::b",
+      "kavlan-9": "2001:660:4406:595:3:0::b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::b",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.11",
-      "ip6": "2001:660:4406:500:3::b",
+      "ip6": "2001:660:4406:500:3:0::b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:ea",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
index fb4e4d3acca..031082a35a6 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-110.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::6e",
-      "kavlan-11": "2001:660:4406:1a0:503::6e",
-      "kavlan-12": "2001:660:4406:2a0:503::6e",
-      "kavlan-13": "2001:660:4406:4a0:503::6e",
-      "kavlan-14": "2001:660:4406:5a0:503::6e",
-      "kavlan-16": "2001:660:4406:7a0:503::6e",
-      "kavlan-18": "2001:660:4406:8a0:503::6e",
-      "kavlan-2": "2001:660:4406:581:3::6e",
-      "kavlan-20": "2001:660:4406:3a0:503::6e",
-      "kavlan-21": "2001:660:4406:6a0:503::6e",
-      "kavlan-3": "2001:660:4406:582:3::6e",
-      "kavlan-4": "2001:660:4406:590:3::6e",
-      "kavlan-5": "2001:660:4406:591:3::6e",
-      "kavlan-6": "2001:660:4406:592:3::6e",
-      "kavlan-7": "2001:660:4406:593:3::6e",
-      "kavlan-8": "2001:660:4406:594:3::6e",
-      "kavlan-9": "2001:660:4406:595:3::6e"
+      "kavlan-1": "2001:660:4406:580:3:0::6e",
+      "kavlan-11": "2001:660:4406:1a0:503:0::6e",
+      "kavlan-12": "2001:660:4406:2a0:503:0::6e",
+      "kavlan-13": "2001:660:4406:4a0:503:0::6e",
+      "kavlan-14": "2001:660:4406:5a0:503:0::6e",
+      "kavlan-16": "2001:660:4406:7a0:503:0::6e",
+      "kavlan-18": "2001:660:4406:8a0:503:0::6e",
+      "kavlan-2": "2001:660:4406:581:3:0::6e",
+      "kavlan-20": "2001:660:4406:3a0:503:0::6e",
+      "kavlan-21": "2001:660:4406:6a0:503:0::6e",
+      "kavlan-3": "2001:660:4406:582:3:0::6e",
+      "kavlan-4": "2001:660:4406:590:3:0::6e",
+      "kavlan-5": "2001:660:4406:591:3:0::6e",
+      "kavlan-6": "2001:660:4406:592:3:0::6e",
+      "kavlan-7": "2001:660:4406:593:3:0::6e",
+      "kavlan-8": "2001:660:4406:594:3:0::6e",
+      "kavlan-9": "2001:660:4406:595:3:0::6e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::6e",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.110",
-      "ip6": "2001:660:4406:500:3::6e",
+      "ip6": "2001:660:4406:500:3:0::6e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:ae",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
index 551eef4ccdb..8594f31bcc4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-111.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::6f",
-      "kavlan-11": "2001:660:4406:1a0:503::6f",
-      "kavlan-12": "2001:660:4406:2a0:503::6f",
-      "kavlan-13": "2001:660:4406:4a0:503::6f",
-      "kavlan-14": "2001:660:4406:5a0:503::6f",
-      "kavlan-16": "2001:660:4406:7a0:503::6f",
-      "kavlan-18": "2001:660:4406:8a0:503::6f",
-      "kavlan-2": "2001:660:4406:581:3::6f",
-      "kavlan-20": "2001:660:4406:3a0:503::6f",
-      "kavlan-21": "2001:660:4406:6a0:503::6f",
-      "kavlan-3": "2001:660:4406:582:3::6f",
-      "kavlan-4": "2001:660:4406:590:3::6f",
-      "kavlan-5": "2001:660:4406:591:3::6f",
-      "kavlan-6": "2001:660:4406:592:3::6f",
-      "kavlan-7": "2001:660:4406:593:3::6f",
-      "kavlan-8": "2001:660:4406:594:3::6f",
-      "kavlan-9": "2001:660:4406:595:3::6f"
+      "kavlan-1": "2001:660:4406:580:3:0::6f",
+      "kavlan-11": "2001:660:4406:1a0:503:0::6f",
+      "kavlan-12": "2001:660:4406:2a0:503:0::6f",
+      "kavlan-13": "2001:660:4406:4a0:503:0::6f",
+      "kavlan-14": "2001:660:4406:5a0:503:0::6f",
+      "kavlan-16": "2001:660:4406:7a0:503:0::6f",
+      "kavlan-18": "2001:660:4406:8a0:503:0::6f",
+      "kavlan-2": "2001:660:4406:581:3:0::6f",
+      "kavlan-20": "2001:660:4406:3a0:503:0::6f",
+      "kavlan-21": "2001:660:4406:6a0:503:0::6f",
+      "kavlan-3": "2001:660:4406:582:3:0::6f",
+      "kavlan-4": "2001:660:4406:590:3:0::6f",
+      "kavlan-5": "2001:660:4406:591:3:0::6f",
+      "kavlan-6": "2001:660:4406:592:3:0::6f",
+      "kavlan-7": "2001:660:4406:593:3:0::6f",
+      "kavlan-8": "2001:660:4406:594:3:0::6f",
+      "kavlan-9": "2001:660:4406:595:3:0::6f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::6f",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.111",
-      "ip6": "2001:660:4406:500:3::6f",
+      "ip6": "2001:660:4406:500:3:0::6f",
       "kavlan": true,
       "mac": "98:03:9b:b0:68:f2",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
index 92167e69f51..e305b5e0ff2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-112.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::70",
-      "kavlan-11": "2001:660:4406:1a0:503::70",
-      "kavlan-12": "2001:660:4406:2a0:503::70",
-      "kavlan-13": "2001:660:4406:4a0:503::70",
-      "kavlan-14": "2001:660:4406:5a0:503::70",
-      "kavlan-16": "2001:660:4406:7a0:503::70",
-      "kavlan-18": "2001:660:4406:8a0:503::70",
-      "kavlan-2": "2001:660:4406:581:3::70",
-      "kavlan-20": "2001:660:4406:3a0:503::70",
-      "kavlan-21": "2001:660:4406:6a0:503::70",
-      "kavlan-3": "2001:660:4406:582:3::70",
-      "kavlan-4": "2001:660:4406:590:3::70",
-      "kavlan-5": "2001:660:4406:591:3::70",
-      "kavlan-6": "2001:660:4406:592:3::70",
-      "kavlan-7": "2001:660:4406:593:3::70",
-      "kavlan-8": "2001:660:4406:594:3::70",
-      "kavlan-9": "2001:660:4406:595:3::70"
+      "kavlan-1": "2001:660:4406:580:3:0::70",
+      "kavlan-11": "2001:660:4406:1a0:503:0::70",
+      "kavlan-12": "2001:660:4406:2a0:503:0::70",
+      "kavlan-13": "2001:660:4406:4a0:503:0::70",
+      "kavlan-14": "2001:660:4406:5a0:503:0::70",
+      "kavlan-16": "2001:660:4406:7a0:503:0::70",
+      "kavlan-18": "2001:660:4406:8a0:503:0::70",
+      "kavlan-2": "2001:660:4406:581:3:0::70",
+      "kavlan-20": "2001:660:4406:3a0:503:0::70",
+      "kavlan-21": "2001:660:4406:6a0:503:0::70",
+      "kavlan-3": "2001:660:4406:582:3:0::70",
+      "kavlan-4": "2001:660:4406:590:3:0::70",
+      "kavlan-5": "2001:660:4406:591:3:0::70",
+      "kavlan-6": "2001:660:4406:592:3:0::70",
+      "kavlan-7": "2001:660:4406:593:3:0::70",
+      "kavlan-8": "2001:660:4406:594:3:0::70",
+      "kavlan-9": "2001:660:4406:595:3:0::70"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::70",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.112",
-      "ip6": "2001:660:4406:500:3::70",
+      "ip6": "2001:660:4406:500:3:0::70",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:2e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
index 5f7564d53de..cf745a4823d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-113.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::71",
-      "kavlan-11": "2001:660:4406:1a0:503::71",
-      "kavlan-12": "2001:660:4406:2a0:503::71",
-      "kavlan-13": "2001:660:4406:4a0:503::71",
-      "kavlan-14": "2001:660:4406:5a0:503::71",
-      "kavlan-16": "2001:660:4406:7a0:503::71",
-      "kavlan-18": "2001:660:4406:8a0:503::71",
-      "kavlan-2": "2001:660:4406:581:3::71",
-      "kavlan-20": "2001:660:4406:3a0:503::71",
-      "kavlan-21": "2001:660:4406:6a0:503::71",
-      "kavlan-3": "2001:660:4406:582:3::71",
-      "kavlan-4": "2001:660:4406:590:3::71",
-      "kavlan-5": "2001:660:4406:591:3::71",
-      "kavlan-6": "2001:660:4406:592:3::71",
-      "kavlan-7": "2001:660:4406:593:3::71",
-      "kavlan-8": "2001:660:4406:594:3::71",
-      "kavlan-9": "2001:660:4406:595:3::71"
+      "kavlan-1": "2001:660:4406:580:3:0::71",
+      "kavlan-11": "2001:660:4406:1a0:503:0::71",
+      "kavlan-12": "2001:660:4406:2a0:503:0::71",
+      "kavlan-13": "2001:660:4406:4a0:503:0::71",
+      "kavlan-14": "2001:660:4406:5a0:503:0::71",
+      "kavlan-16": "2001:660:4406:7a0:503:0::71",
+      "kavlan-18": "2001:660:4406:8a0:503:0::71",
+      "kavlan-2": "2001:660:4406:581:3:0::71",
+      "kavlan-20": "2001:660:4406:3a0:503:0::71",
+      "kavlan-21": "2001:660:4406:6a0:503:0::71",
+      "kavlan-3": "2001:660:4406:582:3:0::71",
+      "kavlan-4": "2001:660:4406:590:3:0::71",
+      "kavlan-5": "2001:660:4406:591:3:0::71",
+      "kavlan-6": "2001:660:4406:592:3:0::71",
+      "kavlan-7": "2001:660:4406:593:3:0::71",
+      "kavlan-8": "2001:660:4406:594:3:0::71",
+      "kavlan-9": "2001:660:4406:595:3:0::71"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::71",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.113",
-      "ip6": "2001:660:4406:500:3::71",
+      "ip6": "2001:660:4406:500:3:0::71",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:12",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
index 23f50112cd6..8c0a5d5e6bd 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-114.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::72",
-      "kavlan-11": "2001:660:4406:1a0:503::72",
-      "kavlan-12": "2001:660:4406:2a0:503::72",
-      "kavlan-13": "2001:660:4406:4a0:503::72",
-      "kavlan-14": "2001:660:4406:5a0:503::72",
-      "kavlan-16": "2001:660:4406:7a0:503::72",
-      "kavlan-18": "2001:660:4406:8a0:503::72",
-      "kavlan-2": "2001:660:4406:581:3::72",
-      "kavlan-20": "2001:660:4406:3a0:503::72",
-      "kavlan-21": "2001:660:4406:6a0:503::72",
-      "kavlan-3": "2001:660:4406:582:3::72",
-      "kavlan-4": "2001:660:4406:590:3::72",
-      "kavlan-5": "2001:660:4406:591:3::72",
-      "kavlan-6": "2001:660:4406:592:3::72",
-      "kavlan-7": "2001:660:4406:593:3::72",
-      "kavlan-8": "2001:660:4406:594:3::72",
-      "kavlan-9": "2001:660:4406:595:3::72"
+      "kavlan-1": "2001:660:4406:580:3:0::72",
+      "kavlan-11": "2001:660:4406:1a0:503:0::72",
+      "kavlan-12": "2001:660:4406:2a0:503:0::72",
+      "kavlan-13": "2001:660:4406:4a0:503:0::72",
+      "kavlan-14": "2001:660:4406:5a0:503:0::72",
+      "kavlan-16": "2001:660:4406:7a0:503:0::72",
+      "kavlan-18": "2001:660:4406:8a0:503:0::72",
+      "kavlan-2": "2001:660:4406:581:3:0::72",
+      "kavlan-20": "2001:660:4406:3a0:503:0::72",
+      "kavlan-21": "2001:660:4406:6a0:503:0::72",
+      "kavlan-3": "2001:660:4406:582:3:0::72",
+      "kavlan-4": "2001:660:4406:590:3:0::72",
+      "kavlan-5": "2001:660:4406:591:3:0::72",
+      "kavlan-6": "2001:660:4406:592:3:0::72",
+      "kavlan-7": "2001:660:4406:593:3:0::72",
+      "kavlan-8": "2001:660:4406:594:3:0::72",
+      "kavlan-9": "2001:660:4406:595:3:0::72"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::72",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.114",
-      "ip6": "2001:660:4406:500:3::72",
+      "ip6": "2001:660:4406:500:3:0::72",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:0a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
index 713e4bf0bc2..d4619834872 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-115.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::73",
-      "kavlan-11": "2001:660:4406:1a0:503::73",
-      "kavlan-12": "2001:660:4406:2a0:503::73",
-      "kavlan-13": "2001:660:4406:4a0:503::73",
-      "kavlan-14": "2001:660:4406:5a0:503::73",
-      "kavlan-16": "2001:660:4406:7a0:503::73",
-      "kavlan-18": "2001:660:4406:8a0:503::73",
-      "kavlan-2": "2001:660:4406:581:3::73",
-      "kavlan-20": "2001:660:4406:3a0:503::73",
-      "kavlan-21": "2001:660:4406:6a0:503::73",
-      "kavlan-3": "2001:660:4406:582:3::73",
-      "kavlan-4": "2001:660:4406:590:3::73",
-      "kavlan-5": "2001:660:4406:591:3::73",
-      "kavlan-6": "2001:660:4406:592:3::73",
-      "kavlan-7": "2001:660:4406:593:3::73",
-      "kavlan-8": "2001:660:4406:594:3::73",
-      "kavlan-9": "2001:660:4406:595:3::73"
+      "kavlan-1": "2001:660:4406:580:3:0::73",
+      "kavlan-11": "2001:660:4406:1a0:503:0::73",
+      "kavlan-12": "2001:660:4406:2a0:503:0::73",
+      "kavlan-13": "2001:660:4406:4a0:503:0::73",
+      "kavlan-14": "2001:660:4406:5a0:503:0::73",
+      "kavlan-16": "2001:660:4406:7a0:503:0::73",
+      "kavlan-18": "2001:660:4406:8a0:503:0::73",
+      "kavlan-2": "2001:660:4406:581:3:0::73",
+      "kavlan-20": "2001:660:4406:3a0:503:0::73",
+      "kavlan-21": "2001:660:4406:6a0:503:0::73",
+      "kavlan-3": "2001:660:4406:582:3:0::73",
+      "kavlan-4": "2001:660:4406:590:3:0::73",
+      "kavlan-5": "2001:660:4406:591:3:0::73",
+      "kavlan-6": "2001:660:4406:592:3:0::73",
+      "kavlan-7": "2001:660:4406:593:3:0::73",
+      "kavlan-8": "2001:660:4406:594:3:0::73",
+      "kavlan-9": "2001:660:4406:595:3:0::73"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::73",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.115",
-      "ip6": "2001:660:4406:500:3::73",
+      "ip6": "2001:660:4406:500:3:0::73",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:de",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
index f983c5d4566..f4b55dbe14a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-116.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::74",
-      "kavlan-11": "2001:660:4406:1a0:503::74",
-      "kavlan-12": "2001:660:4406:2a0:503::74",
-      "kavlan-13": "2001:660:4406:4a0:503::74",
-      "kavlan-14": "2001:660:4406:5a0:503::74",
-      "kavlan-16": "2001:660:4406:7a0:503::74",
-      "kavlan-18": "2001:660:4406:8a0:503::74",
-      "kavlan-2": "2001:660:4406:581:3::74",
-      "kavlan-20": "2001:660:4406:3a0:503::74",
-      "kavlan-21": "2001:660:4406:6a0:503::74",
-      "kavlan-3": "2001:660:4406:582:3::74",
-      "kavlan-4": "2001:660:4406:590:3::74",
-      "kavlan-5": "2001:660:4406:591:3::74",
-      "kavlan-6": "2001:660:4406:592:3::74",
-      "kavlan-7": "2001:660:4406:593:3::74",
-      "kavlan-8": "2001:660:4406:594:3::74",
-      "kavlan-9": "2001:660:4406:595:3::74"
+      "kavlan-1": "2001:660:4406:580:3:0::74",
+      "kavlan-11": "2001:660:4406:1a0:503:0::74",
+      "kavlan-12": "2001:660:4406:2a0:503:0::74",
+      "kavlan-13": "2001:660:4406:4a0:503:0::74",
+      "kavlan-14": "2001:660:4406:5a0:503:0::74",
+      "kavlan-16": "2001:660:4406:7a0:503:0::74",
+      "kavlan-18": "2001:660:4406:8a0:503:0::74",
+      "kavlan-2": "2001:660:4406:581:3:0::74",
+      "kavlan-20": "2001:660:4406:3a0:503:0::74",
+      "kavlan-21": "2001:660:4406:6a0:503:0::74",
+      "kavlan-3": "2001:660:4406:582:3:0::74",
+      "kavlan-4": "2001:660:4406:590:3:0::74",
+      "kavlan-5": "2001:660:4406:591:3:0::74",
+      "kavlan-6": "2001:660:4406:592:3:0::74",
+      "kavlan-7": "2001:660:4406:593:3:0::74",
+      "kavlan-8": "2001:660:4406:594:3:0::74",
+      "kavlan-9": "2001:660:4406:595:3:0::74"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::74",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.116",
-      "ip6": "2001:660:4406:500:3::74",
+      "ip6": "2001:660:4406:500:3:0::74",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
index fe9e0194996..0d0bd9f858d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-117.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::75",
-      "kavlan-11": "2001:660:4406:1a0:503::75",
-      "kavlan-12": "2001:660:4406:2a0:503::75",
-      "kavlan-13": "2001:660:4406:4a0:503::75",
-      "kavlan-14": "2001:660:4406:5a0:503::75",
-      "kavlan-16": "2001:660:4406:7a0:503::75",
-      "kavlan-18": "2001:660:4406:8a0:503::75",
-      "kavlan-2": "2001:660:4406:581:3::75",
-      "kavlan-20": "2001:660:4406:3a0:503::75",
-      "kavlan-21": "2001:660:4406:6a0:503::75",
-      "kavlan-3": "2001:660:4406:582:3::75",
-      "kavlan-4": "2001:660:4406:590:3::75",
-      "kavlan-5": "2001:660:4406:591:3::75",
-      "kavlan-6": "2001:660:4406:592:3::75",
-      "kavlan-7": "2001:660:4406:593:3::75",
-      "kavlan-8": "2001:660:4406:594:3::75",
-      "kavlan-9": "2001:660:4406:595:3::75"
+      "kavlan-1": "2001:660:4406:580:3:0::75",
+      "kavlan-11": "2001:660:4406:1a0:503:0::75",
+      "kavlan-12": "2001:660:4406:2a0:503:0::75",
+      "kavlan-13": "2001:660:4406:4a0:503:0::75",
+      "kavlan-14": "2001:660:4406:5a0:503:0::75",
+      "kavlan-16": "2001:660:4406:7a0:503:0::75",
+      "kavlan-18": "2001:660:4406:8a0:503:0::75",
+      "kavlan-2": "2001:660:4406:581:3:0::75",
+      "kavlan-20": "2001:660:4406:3a0:503:0::75",
+      "kavlan-21": "2001:660:4406:6a0:503:0::75",
+      "kavlan-3": "2001:660:4406:582:3:0::75",
+      "kavlan-4": "2001:660:4406:590:3:0::75",
+      "kavlan-5": "2001:660:4406:591:3:0::75",
+      "kavlan-6": "2001:660:4406:592:3:0::75",
+      "kavlan-7": "2001:660:4406:593:3:0::75",
+      "kavlan-8": "2001:660:4406:594:3:0::75",
+      "kavlan-9": "2001:660:4406:595:3:0::75"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::75",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.117",
-      "ip6": "2001:660:4406:500:3::75",
+      "ip6": "2001:660:4406:500:3:0::75",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
index 50e778ba200..53a25dafdbc 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-118.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::76",
-      "kavlan-11": "2001:660:4406:1a0:503::76",
-      "kavlan-12": "2001:660:4406:2a0:503::76",
-      "kavlan-13": "2001:660:4406:4a0:503::76",
-      "kavlan-14": "2001:660:4406:5a0:503::76",
-      "kavlan-16": "2001:660:4406:7a0:503::76",
-      "kavlan-18": "2001:660:4406:8a0:503::76",
-      "kavlan-2": "2001:660:4406:581:3::76",
-      "kavlan-20": "2001:660:4406:3a0:503::76",
-      "kavlan-21": "2001:660:4406:6a0:503::76",
-      "kavlan-3": "2001:660:4406:582:3::76",
-      "kavlan-4": "2001:660:4406:590:3::76",
-      "kavlan-5": "2001:660:4406:591:3::76",
-      "kavlan-6": "2001:660:4406:592:3::76",
-      "kavlan-7": "2001:660:4406:593:3::76",
-      "kavlan-8": "2001:660:4406:594:3::76",
-      "kavlan-9": "2001:660:4406:595:3::76"
+      "kavlan-1": "2001:660:4406:580:3:0::76",
+      "kavlan-11": "2001:660:4406:1a0:503:0::76",
+      "kavlan-12": "2001:660:4406:2a0:503:0::76",
+      "kavlan-13": "2001:660:4406:4a0:503:0::76",
+      "kavlan-14": "2001:660:4406:5a0:503:0::76",
+      "kavlan-16": "2001:660:4406:7a0:503:0::76",
+      "kavlan-18": "2001:660:4406:8a0:503:0::76",
+      "kavlan-2": "2001:660:4406:581:3:0::76",
+      "kavlan-20": "2001:660:4406:3a0:503:0::76",
+      "kavlan-21": "2001:660:4406:6a0:503:0::76",
+      "kavlan-3": "2001:660:4406:582:3:0::76",
+      "kavlan-4": "2001:660:4406:590:3:0::76",
+      "kavlan-5": "2001:660:4406:591:3:0::76",
+      "kavlan-6": "2001:660:4406:592:3:0::76",
+      "kavlan-7": "2001:660:4406:593:3:0::76",
+      "kavlan-8": "2001:660:4406:594:3:0::76",
+      "kavlan-9": "2001:660:4406:595:3:0::76"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::76",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.118",
-      "ip6": "2001:660:4406:500:3::76",
+      "ip6": "2001:660:4406:500:3:0::76",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:92",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
index 7698cf55b37..389e18e0f32 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-119.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::77",
-      "kavlan-11": "2001:660:4406:1a0:503::77",
-      "kavlan-12": "2001:660:4406:2a0:503::77",
-      "kavlan-13": "2001:660:4406:4a0:503::77",
-      "kavlan-14": "2001:660:4406:5a0:503::77",
-      "kavlan-16": "2001:660:4406:7a0:503::77",
-      "kavlan-18": "2001:660:4406:8a0:503::77",
-      "kavlan-2": "2001:660:4406:581:3::77",
-      "kavlan-20": "2001:660:4406:3a0:503::77",
-      "kavlan-21": "2001:660:4406:6a0:503::77",
-      "kavlan-3": "2001:660:4406:582:3::77",
-      "kavlan-4": "2001:660:4406:590:3::77",
-      "kavlan-5": "2001:660:4406:591:3::77",
-      "kavlan-6": "2001:660:4406:592:3::77",
-      "kavlan-7": "2001:660:4406:593:3::77",
-      "kavlan-8": "2001:660:4406:594:3::77",
-      "kavlan-9": "2001:660:4406:595:3::77"
+      "kavlan-1": "2001:660:4406:580:3:0::77",
+      "kavlan-11": "2001:660:4406:1a0:503:0::77",
+      "kavlan-12": "2001:660:4406:2a0:503:0::77",
+      "kavlan-13": "2001:660:4406:4a0:503:0::77",
+      "kavlan-14": "2001:660:4406:5a0:503:0::77",
+      "kavlan-16": "2001:660:4406:7a0:503:0::77",
+      "kavlan-18": "2001:660:4406:8a0:503:0::77",
+      "kavlan-2": "2001:660:4406:581:3:0::77",
+      "kavlan-20": "2001:660:4406:3a0:503:0::77",
+      "kavlan-21": "2001:660:4406:6a0:503:0::77",
+      "kavlan-3": "2001:660:4406:582:3:0::77",
+      "kavlan-4": "2001:660:4406:590:3:0::77",
+      "kavlan-5": "2001:660:4406:591:3:0::77",
+      "kavlan-6": "2001:660:4406:592:3:0::77",
+      "kavlan-7": "2001:660:4406:593:3:0::77",
+      "kavlan-8": "2001:660:4406:594:3:0::77",
+      "kavlan-9": "2001:660:4406:595:3:0::77"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::77",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.119",
-      "ip6": "2001:660:4406:500:3::77",
+      "ip6": "2001:660:4406:500:3:0::77",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:8a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
index 56243cbb8c4..1240bf76d30 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-12.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::c",
-      "kavlan-11": "2001:660:4406:1a0:503::c",
-      "kavlan-12": "2001:660:4406:2a0:503::c",
-      "kavlan-13": "2001:660:4406:4a0:503::c",
-      "kavlan-14": "2001:660:4406:5a0:503::c",
-      "kavlan-16": "2001:660:4406:7a0:503::c",
-      "kavlan-18": "2001:660:4406:8a0:503::c",
-      "kavlan-2": "2001:660:4406:581:3::c",
-      "kavlan-20": "2001:660:4406:3a0:503::c",
-      "kavlan-21": "2001:660:4406:6a0:503::c",
-      "kavlan-3": "2001:660:4406:582:3::c",
-      "kavlan-4": "2001:660:4406:590:3::c",
-      "kavlan-5": "2001:660:4406:591:3::c",
-      "kavlan-6": "2001:660:4406:592:3::c",
-      "kavlan-7": "2001:660:4406:593:3::c",
-      "kavlan-8": "2001:660:4406:594:3::c",
-      "kavlan-9": "2001:660:4406:595:3::c"
+      "kavlan-1": "2001:660:4406:580:3:0::c",
+      "kavlan-11": "2001:660:4406:1a0:503:0::c",
+      "kavlan-12": "2001:660:4406:2a0:503:0::c",
+      "kavlan-13": "2001:660:4406:4a0:503:0::c",
+      "kavlan-14": "2001:660:4406:5a0:503:0::c",
+      "kavlan-16": "2001:660:4406:7a0:503:0::c",
+      "kavlan-18": "2001:660:4406:8a0:503:0::c",
+      "kavlan-2": "2001:660:4406:581:3:0::c",
+      "kavlan-20": "2001:660:4406:3a0:503:0::c",
+      "kavlan-21": "2001:660:4406:6a0:503:0::c",
+      "kavlan-3": "2001:660:4406:582:3:0::c",
+      "kavlan-4": "2001:660:4406:590:3:0::c",
+      "kavlan-5": "2001:660:4406:591:3:0::c",
+      "kavlan-6": "2001:660:4406:592:3:0::c",
+      "kavlan-7": "2001:660:4406:593:3:0::c",
+      "kavlan-8": "2001:660:4406:594:3:0::c",
+      "kavlan-9": "2001:660:4406:595:3:0::c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::c",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.12",
-      "ip6": "2001:660:4406:500:3::c",
+      "ip6": "2001:660:4406:500:3:0::c",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:26",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
index 86b3900e0fe..bb70e555a2c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-120.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::78",
-      "kavlan-11": "2001:660:4406:1a0:503::78",
-      "kavlan-12": "2001:660:4406:2a0:503::78",
-      "kavlan-13": "2001:660:4406:4a0:503::78",
-      "kavlan-14": "2001:660:4406:5a0:503::78",
-      "kavlan-16": "2001:660:4406:7a0:503::78",
-      "kavlan-18": "2001:660:4406:8a0:503::78",
-      "kavlan-2": "2001:660:4406:581:3::78",
-      "kavlan-20": "2001:660:4406:3a0:503::78",
-      "kavlan-21": "2001:660:4406:6a0:503::78",
-      "kavlan-3": "2001:660:4406:582:3::78",
-      "kavlan-4": "2001:660:4406:590:3::78",
-      "kavlan-5": "2001:660:4406:591:3::78",
-      "kavlan-6": "2001:660:4406:592:3::78",
-      "kavlan-7": "2001:660:4406:593:3::78",
-      "kavlan-8": "2001:660:4406:594:3::78",
-      "kavlan-9": "2001:660:4406:595:3::78"
+      "kavlan-1": "2001:660:4406:580:3:0::78",
+      "kavlan-11": "2001:660:4406:1a0:503:0::78",
+      "kavlan-12": "2001:660:4406:2a0:503:0::78",
+      "kavlan-13": "2001:660:4406:4a0:503:0::78",
+      "kavlan-14": "2001:660:4406:5a0:503:0::78",
+      "kavlan-16": "2001:660:4406:7a0:503:0::78",
+      "kavlan-18": "2001:660:4406:8a0:503:0::78",
+      "kavlan-2": "2001:660:4406:581:3:0::78",
+      "kavlan-20": "2001:660:4406:3a0:503:0::78",
+      "kavlan-21": "2001:660:4406:6a0:503:0::78",
+      "kavlan-3": "2001:660:4406:582:3:0::78",
+      "kavlan-4": "2001:660:4406:590:3:0::78",
+      "kavlan-5": "2001:660:4406:591:3:0::78",
+      "kavlan-6": "2001:660:4406:592:3:0::78",
+      "kavlan-7": "2001:660:4406:593:3:0::78",
+      "kavlan-8": "2001:660:4406:594:3:0::78",
+      "kavlan-9": "2001:660:4406:595:3:0::78"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::78",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.120",
-      "ip6": "2001:660:4406:500:3::78",
+      "ip6": "2001:660:4406:500:3:0::78",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:b6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
index e3aac965f70..b92c0a15bd9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-121.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::79",
-      "kavlan-11": "2001:660:4406:1a0:503::79",
-      "kavlan-12": "2001:660:4406:2a0:503::79",
-      "kavlan-13": "2001:660:4406:4a0:503::79",
-      "kavlan-14": "2001:660:4406:5a0:503::79",
-      "kavlan-16": "2001:660:4406:7a0:503::79",
-      "kavlan-18": "2001:660:4406:8a0:503::79",
-      "kavlan-2": "2001:660:4406:581:3::79",
-      "kavlan-20": "2001:660:4406:3a0:503::79",
-      "kavlan-21": "2001:660:4406:6a0:503::79",
-      "kavlan-3": "2001:660:4406:582:3::79",
-      "kavlan-4": "2001:660:4406:590:3::79",
-      "kavlan-5": "2001:660:4406:591:3::79",
-      "kavlan-6": "2001:660:4406:592:3::79",
-      "kavlan-7": "2001:660:4406:593:3::79",
-      "kavlan-8": "2001:660:4406:594:3::79",
-      "kavlan-9": "2001:660:4406:595:3::79"
+      "kavlan-1": "2001:660:4406:580:3:0::79",
+      "kavlan-11": "2001:660:4406:1a0:503:0::79",
+      "kavlan-12": "2001:660:4406:2a0:503:0::79",
+      "kavlan-13": "2001:660:4406:4a0:503:0::79",
+      "kavlan-14": "2001:660:4406:5a0:503:0::79",
+      "kavlan-16": "2001:660:4406:7a0:503:0::79",
+      "kavlan-18": "2001:660:4406:8a0:503:0::79",
+      "kavlan-2": "2001:660:4406:581:3:0::79",
+      "kavlan-20": "2001:660:4406:3a0:503:0::79",
+      "kavlan-21": "2001:660:4406:6a0:503:0::79",
+      "kavlan-3": "2001:660:4406:582:3:0::79",
+      "kavlan-4": "2001:660:4406:590:3:0::79",
+      "kavlan-5": "2001:660:4406:591:3:0::79",
+      "kavlan-6": "2001:660:4406:592:3:0::79",
+      "kavlan-7": "2001:660:4406:593:3:0::79",
+      "kavlan-8": "2001:660:4406:594:3:0::79",
+      "kavlan-9": "2001:660:4406:595:3:0::79"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::79",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.121",
-      "ip6": "2001:660:4406:500:3::79",
+      "ip6": "2001:660:4406:500:3:0::79",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:76",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
index 4d73957f515..3db10d1abeb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-122.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::7a",
-      "kavlan-11": "2001:660:4406:1a0:503::7a",
-      "kavlan-12": "2001:660:4406:2a0:503::7a",
-      "kavlan-13": "2001:660:4406:4a0:503::7a",
-      "kavlan-14": "2001:660:4406:5a0:503::7a",
-      "kavlan-16": "2001:660:4406:7a0:503::7a",
-      "kavlan-18": "2001:660:4406:8a0:503::7a",
-      "kavlan-2": "2001:660:4406:581:3::7a",
-      "kavlan-20": "2001:660:4406:3a0:503::7a",
-      "kavlan-21": "2001:660:4406:6a0:503::7a",
-      "kavlan-3": "2001:660:4406:582:3::7a",
-      "kavlan-4": "2001:660:4406:590:3::7a",
-      "kavlan-5": "2001:660:4406:591:3::7a",
-      "kavlan-6": "2001:660:4406:592:3::7a",
-      "kavlan-7": "2001:660:4406:593:3::7a",
-      "kavlan-8": "2001:660:4406:594:3::7a",
-      "kavlan-9": "2001:660:4406:595:3::7a"
+      "kavlan-1": "2001:660:4406:580:3:0::7a",
+      "kavlan-11": "2001:660:4406:1a0:503:0::7a",
+      "kavlan-12": "2001:660:4406:2a0:503:0::7a",
+      "kavlan-13": "2001:660:4406:4a0:503:0::7a",
+      "kavlan-14": "2001:660:4406:5a0:503:0::7a",
+      "kavlan-16": "2001:660:4406:7a0:503:0::7a",
+      "kavlan-18": "2001:660:4406:8a0:503:0::7a",
+      "kavlan-2": "2001:660:4406:581:3:0::7a",
+      "kavlan-20": "2001:660:4406:3a0:503:0::7a",
+      "kavlan-21": "2001:660:4406:6a0:503:0::7a",
+      "kavlan-3": "2001:660:4406:582:3:0::7a",
+      "kavlan-4": "2001:660:4406:590:3:0::7a",
+      "kavlan-5": "2001:660:4406:591:3:0::7a",
+      "kavlan-6": "2001:660:4406:592:3:0::7a",
+      "kavlan-7": "2001:660:4406:593:3:0::7a",
+      "kavlan-8": "2001:660:4406:594:3:0::7a",
+      "kavlan-9": "2001:660:4406:595:3:0::7a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::7a",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.122",
-      "ip6": "2001:660:4406:500:3::7a",
+      "ip6": "2001:660:4406:500:3:0::7a",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:da",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
index a0643bd48ae..2c14da3c12b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-123.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::7b",
-      "kavlan-11": "2001:660:4406:1a0:503::7b",
-      "kavlan-12": "2001:660:4406:2a0:503::7b",
-      "kavlan-13": "2001:660:4406:4a0:503::7b",
-      "kavlan-14": "2001:660:4406:5a0:503::7b",
-      "kavlan-16": "2001:660:4406:7a0:503::7b",
-      "kavlan-18": "2001:660:4406:8a0:503::7b",
-      "kavlan-2": "2001:660:4406:581:3::7b",
-      "kavlan-20": "2001:660:4406:3a0:503::7b",
-      "kavlan-21": "2001:660:4406:6a0:503::7b",
-      "kavlan-3": "2001:660:4406:582:3::7b",
-      "kavlan-4": "2001:660:4406:590:3::7b",
-      "kavlan-5": "2001:660:4406:591:3::7b",
-      "kavlan-6": "2001:660:4406:592:3::7b",
-      "kavlan-7": "2001:660:4406:593:3::7b",
-      "kavlan-8": "2001:660:4406:594:3::7b",
-      "kavlan-9": "2001:660:4406:595:3::7b"
+      "kavlan-1": "2001:660:4406:580:3:0::7b",
+      "kavlan-11": "2001:660:4406:1a0:503:0::7b",
+      "kavlan-12": "2001:660:4406:2a0:503:0::7b",
+      "kavlan-13": "2001:660:4406:4a0:503:0::7b",
+      "kavlan-14": "2001:660:4406:5a0:503:0::7b",
+      "kavlan-16": "2001:660:4406:7a0:503:0::7b",
+      "kavlan-18": "2001:660:4406:8a0:503:0::7b",
+      "kavlan-2": "2001:660:4406:581:3:0::7b",
+      "kavlan-20": "2001:660:4406:3a0:503:0::7b",
+      "kavlan-21": "2001:660:4406:6a0:503:0::7b",
+      "kavlan-3": "2001:660:4406:582:3:0::7b",
+      "kavlan-4": "2001:660:4406:590:3:0::7b",
+      "kavlan-5": "2001:660:4406:591:3:0::7b",
+      "kavlan-6": "2001:660:4406:592:3:0::7b",
+      "kavlan-7": "2001:660:4406:593:3:0::7b",
+      "kavlan-8": "2001:660:4406:594:3:0::7b",
+      "kavlan-9": "2001:660:4406:595:3:0::7b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::7b",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.123",
-      "ip6": "2001:660:4406:500:3::7b",
+      "ip6": "2001:660:4406:500:3:0::7b",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:be",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
index 15377fda6f9..ab6df649e95 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-124.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::7c",
-      "kavlan-11": "2001:660:4406:1a0:503::7c",
-      "kavlan-12": "2001:660:4406:2a0:503::7c",
-      "kavlan-13": "2001:660:4406:4a0:503::7c",
-      "kavlan-14": "2001:660:4406:5a0:503::7c",
-      "kavlan-16": "2001:660:4406:7a0:503::7c",
-      "kavlan-18": "2001:660:4406:8a0:503::7c",
-      "kavlan-2": "2001:660:4406:581:3::7c",
-      "kavlan-20": "2001:660:4406:3a0:503::7c",
-      "kavlan-21": "2001:660:4406:6a0:503::7c",
-      "kavlan-3": "2001:660:4406:582:3::7c",
-      "kavlan-4": "2001:660:4406:590:3::7c",
-      "kavlan-5": "2001:660:4406:591:3::7c",
-      "kavlan-6": "2001:660:4406:592:3::7c",
-      "kavlan-7": "2001:660:4406:593:3::7c",
-      "kavlan-8": "2001:660:4406:594:3::7c",
-      "kavlan-9": "2001:660:4406:595:3::7c"
+      "kavlan-1": "2001:660:4406:580:3:0::7c",
+      "kavlan-11": "2001:660:4406:1a0:503:0::7c",
+      "kavlan-12": "2001:660:4406:2a0:503:0::7c",
+      "kavlan-13": "2001:660:4406:4a0:503:0::7c",
+      "kavlan-14": "2001:660:4406:5a0:503:0::7c",
+      "kavlan-16": "2001:660:4406:7a0:503:0::7c",
+      "kavlan-18": "2001:660:4406:8a0:503:0::7c",
+      "kavlan-2": "2001:660:4406:581:3:0::7c",
+      "kavlan-20": "2001:660:4406:3a0:503:0::7c",
+      "kavlan-21": "2001:660:4406:6a0:503:0::7c",
+      "kavlan-3": "2001:660:4406:582:3:0::7c",
+      "kavlan-4": "2001:660:4406:590:3:0::7c",
+      "kavlan-5": "2001:660:4406:591:3:0::7c",
+      "kavlan-6": "2001:660:4406:592:3:0::7c",
+      "kavlan-7": "2001:660:4406:593:3:0::7c",
+      "kavlan-8": "2001:660:4406:594:3:0::7c",
+      "kavlan-9": "2001:660:4406:595:3:0::7c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::7c",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.124",
-      "ip6": "2001:660:4406:500:3::7c",
+      "ip6": "2001:660:4406:500:3:0::7c",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:7a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
index a2601e3e519..05011cc6b08 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-13.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::d",
-      "kavlan-11": "2001:660:4406:1a0:503::d",
-      "kavlan-12": "2001:660:4406:2a0:503::d",
-      "kavlan-13": "2001:660:4406:4a0:503::d",
-      "kavlan-14": "2001:660:4406:5a0:503::d",
-      "kavlan-16": "2001:660:4406:7a0:503::d",
-      "kavlan-18": "2001:660:4406:8a0:503::d",
-      "kavlan-2": "2001:660:4406:581:3::d",
-      "kavlan-20": "2001:660:4406:3a0:503::d",
-      "kavlan-21": "2001:660:4406:6a0:503::d",
-      "kavlan-3": "2001:660:4406:582:3::d",
-      "kavlan-4": "2001:660:4406:590:3::d",
-      "kavlan-5": "2001:660:4406:591:3::d",
-      "kavlan-6": "2001:660:4406:592:3::d",
-      "kavlan-7": "2001:660:4406:593:3::d",
-      "kavlan-8": "2001:660:4406:594:3::d",
-      "kavlan-9": "2001:660:4406:595:3::d"
+      "kavlan-1": "2001:660:4406:580:3:0::d",
+      "kavlan-11": "2001:660:4406:1a0:503:0::d",
+      "kavlan-12": "2001:660:4406:2a0:503:0::d",
+      "kavlan-13": "2001:660:4406:4a0:503:0::d",
+      "kavlan-14": "2001:660:4406:5a0:503:0::d",
+      "kavlan-16": "2001:660:4406:7a0:503:0::d",
+      "kavlan-18": "2001:660:4406:8a0:503:0::d",
+      "kavlan-2": "2001:660:4406:581:3:0::d",
+      "kavlan-20": "2001:660:4406:3a0:503:0::d",
+      "kavlan-21": "2001:660:4406:6a0:503:0::d",
+      "kavlan-3": "2001:660:4406:582:3:0::d",
+      "kavlan-4": "2001:660:4406:590:3:0::d",
+      "kavlan-5": "2001:660:4406:591:3:0::d",
+      "kavlan-6": "2001:660:4406:592:3:0::d",
+      "kavlan-7": "2001:660:4406:593:3:0::d",
+      "kavlan-8": "2001:660:4406:594:3:0::d",
+      "kavlan-9": "2001:660:4406:595:3:0::d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::d",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.13",
-      "ip6": "2001:660:4406:500:3::d",
+      "ip6": "2001:660:4406:500:3:0::d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:66",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
index 1acb78bcbb4..7f3c41e8670 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-14.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::e",
-      "kavlan-11": "2001:660:4406:1a0:503::e",
-      "kavlan-12": "2001:660:4406:2a0:503::e",
-      "kavlan-13": "2001:660:4406:4a0:503::e",
-      "kavlan-14": "2001:660:4406:5a0:503::e",
-      "kavlan-16": "2001:660:4406:7a0:503::e",
-      "kavlan-18": "2001:660:4406:8a0:503::e",
-      "kavlan-2": "2001:660:4406:581:3::e",
-      "kavlan-20": "2001:660:4406:3a0:503::e",
-      "kavlan-21": "2001:660:4406:6a0:503::e",
-      "kavlan-3": "2001:660:4406:582:3::e",
-      "kavlan-4": "2001:660:4406:590:3::e",
-      "kavlan-5": "2001:660:4406:591:3::e",
-      "kavlan-6": "2001:660:4406:592:3::e",
-      "kavlan-7": "2001:660:4406:593:3::e",
-      "kavlan-8": "2001:660:4406:594:3::e",
-      "kavlan-9": "2001:660:4406:595:3::e"
+      "kavlan-1": "2001:660:4406:580:3:0::e",
+      "kavlan-11": "2001:660:4406:1a0:503:0::e",
+      "kavlan-12": "2001:660:4406:2a0:503:0::e",
+      "kavlan-13": "2001:660:4406:4a0:503:0::e",
+      "kavlan-14": "2001:660:4406:5a0:503:0::e",
+      "kavlan-16": "2001:660:4406:7a0:503:0::e",
+      "kavlan-18": "2001:660:4406:8a0:503:0::e",
+      "kavlan-2": "2001:660:4406:581:3:0::e",
+      "kavlan-20": "2001:660:4406:3a0:503:0::e",
+      "kavlan-21": "2001:660:4406:6a0:503:0::e",
+      "kavlan-3": "2001:660:4406:582:3:0::e",
+      "kavlan-4": "2001:660:4406:590:3:0::e",
+      "kavlan-5": "2001:660:4406:591:3:0::e",
+      "kavlan-6": "2001:660:4406:592:3:0::e",
+      "kavlan-7": "2001:660:4406:593:3:0::e",
+      "kavlan-8": "2001:660:4406:594:3:0::e",
+      "kavlan-9": "2001:660:4406:595:3:0::e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::e",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.14",
-      "ip6": "2001:660:4406:500:3::e",
+      "ip6": "2001:660:4406:500:3:0::e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:8e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
index 0ce0796a1bd..99a5e2576d3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-15.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::f",
-      "kavlan-11": "2001:660:4406:1a0:503::f",
-      "kavlan-12": "2001:660:4406:2a0:503::f",
-      "kavlan-13": "2001:660:4406:4a0:503::f",
-      "kavlan-14": "2001:660:4406:5a0:503::f",
-      "kavlan-16": "2001:660:4406:7a0:503::f",
-      "kavlan-18": "2001:660:4406:8a0:503::f",
-      "kavlan-2": "2001:660:4406:581:3::f",
-      "kavlan-20": "2001:660:4406:3a0:503::f",
-      "kavlan-21": "2001:660:4406:6a0:503::f",
-      "kavlan-3": "2001:660:4406:582:3::f",
-      "kavlan-4": "2001:660:4406:590:3::f",
-      "kavlan-5": "2001:660:4406:591:3::f",
-      "kavlan-6": "2001:660:4406:592:3::f",
-      "kavlan-7": "2001:660:4406:593:3::f",
-      "kavlan-8": "2001:660:4406:594:3::f",
-      "kavlan-9": "2001:660:4406:595:3::f"
+      "kavlan-1": "2001:660:4406:580:3:0::f",
+      "kavlan-11": "2001:660:4406:1a0:503:0::f",
+      "kavlan-12": "2001:660:4406:2a0:503:0::f",
+      "kavlan-13": "2001:660:4406:4a0:503:0::f",
+      "kavlan-14": "2001:660:4406:5a0:503:0::f",
+      "kavlan-16": "2001:660:4406:7a0:503:0::f",
+      "kavlan-18": "2001:660:4406:8a0:503:0::f",
+      "kavlan-2": "2001:660:4406:581:3:0::f",
+      "kavlan-20": "2001:660:4406:3a0:503:0::f",
+      "kavlan-21": "2001:660:4406:6a0:503:0::f",
+      "kavlan-3": "2001:660:4406:582:3:0::f",
+      "kavlan-4": "2001:660:4406:590:3:0::f",
+      "kavlan-5": "2001:660:4406:591:3:0::f",
+      "kavlan-6": "2001:660:4406:592:3:0::f",
+      "kavlan-7": "2001:660:4406:593:3:0::f",
+      "kavlan-8": "2001:660:4406:594:3:0::f",
+      "kavlan-9": "2001:660:4406:595:3:0::f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::f",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.15",
-      "ip6": "2001:660:4406:500:3::f",
+      "ip6": "2001:660:4406:500:3:0::f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:be",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
index 4bef5cc0e8f..ece46304990 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-16.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::10",
-      "kavlan-11": "2001:660:4406:1a0:503::10",
-      "kavlan-12": "2001:660:4406:2a0:503::10",
-      "kavlan-13": "2001:660:4406:4a0:503::10",
-      "kavlan-14": "2001:660:4406:5a0:503::10",
-      "kavlan-16": "2001:660:4406:7a0:503::10",
-      "kavlan-18": "2001:660:4406:8a0:503::10",
-      "kavlan-2": "2001:660:4406:581:3::10",
-      "kavlan-20": "2001:660:4406:3a0:503::10",
-      "kavlan-21": "2001:660:4406:6a0:503::10",
-      "kavlan-3": "2001:660:4406:582:3::10",
-      "kavlan-4": "2001:660:4406:590:3::10",
-      "kavlan-5": "2001:660:4406:591:3::10",
-      "kavlan-6": "2001:660:4406:592:3::10",
-      "kavlan-7": "2001:660:4406:593:3::10",
-      "kavlan-8": "2001:660:4406:594:3::10",
-      "kavlan-9": "2001:660:4406:595:3::10"
+      "kavlan-1": "2001:660:4406:580:3:0::10",
+      "kavlan-11": "2001:660:4406:1a0:503:0::10",
+      "kavlan-12": "2001:660:4406:2a0:503:0::10",
+      "kavlan-13": "2001:660:4406:4a0:503:0::10",
+      "kavlan-14": "2001:660:4406:5a0:503:0::10",
+      "kavlan-16": "2001:660:4406:7a0:503:0::10",
+      "kavlan-18": "2001:660:4406:8a0:503:0::10",
+      "kavlan-2": "2001:660:4406:581:3:0::10",
+      "kavlan-20": "2001:660:4406:3a0:503:0::10",
+      "kavlan-21": "2001:660:4406:6a0:503:0::10",
+      "kavlan-3": "2001:660:4406:582:3:0::10",
+      "kavlan-4": "2001:660:4406:590:3:0::10",
+      "kavlan-5": "2001:660:4406:591:3:0::10",
+      "kavlan-6": "2001:660:4406:592:3:0::10",
+      "kavlan-7": "2001:660:4406:593:3:0::10",
+      "kavlan-8": "2001:660:4406:594:3:0::10",
+      "kavlan-9": "2001:660:4406:595:3:0::10"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::10",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.16",
-      "ip6": "2001:660:4406:500:3::10",
+      "ip6": "2001:660:4406:500:3:0::10",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:6a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
index ae566508377..445f61f0de6 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-17.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::11",
-      "kavlan-11": "2001:660:4406:1a0:503::11",
-      "kavlan-12": "2001:660:4406:2a0:503::11",
-      "kavlan-13": "2001:660:4406:4a0:503::11",
-      "kavlan-14": "2001:660:4406:5a0:503::11",
-      "kavlan-16": "2001:660:4406:7a0:503::11",
-      "kavlan-18": "2001:660:4406:8a0:503::11",
-      "kavlan-2": "2001:660:4406:581:3::11",
-      "kavlan-20": "2001:660:4406:3a0:503::11",
-      "kavlan-21": "2001:660:4406:6a0:503::11",
-      "kavlan-3": "2001:660:4406:582:3::11",
-      "kavlan-4": "2001:660:4406:590:3::11",
-      "kavlan-5": "2001:660:4406:591:3::11",
-      "kavlan-6": "2001:660:4406:592:3::11",
-      "kavlan-7": "2001:660:4406:593:3::11",
-      "kavlan-8": "2001:660:4406:594:3::11",
-      "kavlan-9": "2001:660:4406:595:3::11"
+      "kavlan-1": "2001:660:4406:580:3:0::11",
+      "kavlan-11": "2001:660:4406:1a0:503:0::11",
+      "kavlan-12": "2001:660:4406:2a0:503:0::11",
+      "kavlan-13": "2001:660:4406:4a0:503:0::11",
+      "kavlan-14": "2001:660:4406:5a0:503:0::11",
+      "kavlan-16": "2001:660:4406:7a0:503:0::11",
+      "kavlan-18": "2001:660:4406:8a0:503:0::11",
+      "kavlan-2": "2001:660:4406:581:3:0::11",
+      "kavlan-20": "2001:660:4406:3a0:503:0::11",
+      "kavlan-21": "2001:660:4406:6a0:503:0::11",
+      "kavlan-3": "2001:660:4406:582:3:0::11",
+      "kavlan-4": "2001:660:4406:590:3:0::11",
+      "kavlan-5": "2001:660:4406:591:3:0::11",
+      "kavlan-6": "2001:660:4406:592:3:0::11",
+      "kavlan-7": "2001:660:4406:593:3:0::11",
+      "kavlan-8": "2001:660:4406:594:3:0::11",
+      "kavlan-9": "2001:660:4406:595:3:0::11"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::11",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.17",
-      "ip6": "2001:660:4406:500:3::11",
+      "ip6": "2001:660:4406:500:3:0::11",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:3a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
index 0d4eda14fdf..a2855c54ec9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-18.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::12",
-      "kavlan-11": "2001:660:4406:1a0:503::12",
-      "kavlan-12": "2001:660:4406:2a0:503::12",
-      "kavlan-13": "2001:660:4406:4a0:503::12",
-      "kavlan-14": "2001:660:4406:5a0:503::12",
-      "kavlan-16": "2001:660:4406:7a0:503::12",
-      "kavlan-18": "2001:660:4406:8a0:503::12",
-      "kavlan-2": "2001:660:4406:581:3::12",
-      "kavlan-20": "2001:660:4406:3a0:503::12",
-      "kavlan-21": "2001:660:4406:6a0:503::12",
-      "kavlan-3": "2001:660:4406:582:3::12",
-      "kavlan-4": "2001:660:4406:590:3::12",
-      "kavlan-5": "2001:660:4406:591:3::12",
-      "kavlan-6": "2001:660:4406:592:3::12",
-      "kavlan-7": "2001:660:4406:593:3::12",
-      "kavlan-8": "2001:660:4406:594:3::12",
-      "kavlan-9": "2001:660:4406:595:3::12"
+      "kavlan-1": "2001:660:4406:580:3:0::12",
+      "kavlan-11": "2001:660:4406:1a0:503:0::12",
+      "kavlan-12": "2001:660:4406:2a0:503:0::12",
+      "kavlan-13": "2001:660:4406:4a0:503:0::12",
+      "kavlan-14": "2001:660:4406:5a0:503:0::12",
+      "kavlan-16": "2001:660:4406:7a0:503:0::12",
+      "kavlan-18": "2001:660:4406:8a0:503:0::12",
+      "kavlan-2": "2001:660:4406:581:3:0::12",
+      "kavlan-20": "2001:660:4406:3a0:503:0::12",
+      "kavlan-21": "2001:660:4406:6a0:503:0::12",
+      "kavlan-3": "2001:660:4406:582:3:0::12",
+      "kavlan-4": "2001:660:4406:590:3:0::12",
+      "kavlan-5": "2001:660:4406:591:3:0::12",
+      "kavlan-6": "2001:660:4406:592:3:0::12",
+      "kavlan-7": "2001:660:4406:593:3:0::12",
+      "kavlan-8": "2001:660:4406:594:3:0::12",
+      "kavlan-9": "2001:660:4406:595:3:0::12"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::12",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.18",
-      "ip6": "2001:660:4406:500:3::12",
+      "ip6": "2001:660:4406:500:3:0::12",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:32",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
index 6201fe2f5ec..a1f7e966b5d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-19.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::13",
-      "kavlan-11": "2001:660:4406:1a0:503::13",
-      "kavlan-12": "2001:660:4406:2a0:503::13",
-      "kavlan-13": "2001:660:4406:4a0:503::13",
-      "kavlan-14": "2001:660:4406:5a0:503::13",
-      "kavlan-16": "2001:660:4406:7a0:503::13",
-      "kavlan-18": "2001:660:4406:8a0:503::13",
-      "kavlan-2": "2001:660:4406:581:3::13",
-      "kavlan-20": "2001:660:4406:3a0:503::13",
-      "kavlan-21": "2001:660:4406:6a0:503::13",
-      "kavlan-3": "2001:660:4406:582:3::13",
-      "kavlan-4": "2001:660:4406:590:3::13",
-      "kavlan-5": "2001:660:4406:591:3::13",
-      "kavlan-6": "2001:660:4406:592:3::13",
-      "kavlan-7": "2001:660:4406:593:3::13",
-      "kavlan-8": "2001:660:4406:594:3::13",
-      "kavlan-9": "2001:660:4406:595:3::13"
+      "kavlan-1": "2001:660:4406:580:3:0::13",
+      "kavlan-11": "2001:660:4406:1a0:503:0::13",
+      "kavlan-12": "2001:660:4406:2a0:503:0::13",
+      "kavlan-13": "2001:660:4406:4a0:503:0::13",
+      "kavlan-14": "2001:660:4406:5a0:503:0::13",
+      "kavlan-16": "2001:660:4406:7a0:503:0::13",
+      "kavlan-18": "2001:660:4406:8a0:503:0::13",
+      "kavlan-2": "2001:660:4406:581:3:0::13",
+      "kavlan-20": "2001:660:4406:3a0:503:0::13",
+      "kavlan-21": "2001:660:4406:6a0:503:0::13",
+      "kavlan-3": "2001:660:4406:582:3:0::13",
+      "kavlan-4": "2001:660:4406:590:3:0::13",
+      "kavlan-5": "2001:660:4406:591:3:0::13",
+      "kavlan-6": "2001:660:4406:592:3:0::13",
+      "kavlan-7": "2001:660:4406:593:3:0::13",
+      "kavlan-8": "2001:660:4406:594:3:0::13",
+      "kavlan-9": "2001:660:4406:595:3:0::13"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::13",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.19",
-      "ip6": "2001:660:4406:500:3::13",
+      "ip6": "2001:660:4406:500:3:0::13",
       "kavlan": true,
       "mac": "98:03:9b:b0:b4:b6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
index 0a8653b3035..a59b070146d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-2.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::2",
-      "kavlan-11": "2001:660:4406:1a0:503::2",
-      "kavlan-12": "2001:660:4406:2a0:503::2",
-      "kavlan-13": "2001:660:4406:4a0:503::2",
-      "kavlan-14": "2001:660:4406:5a0:503::2",
-      "kavlan-16": "2001:660:4406:7a0:503::2",
-      "kavlan-18": "2001:660:4406:8a0:503::2",
-      "kavlan-2": "2001:660:4406:581:3::2",
-      "kavlan-20": "2001:660:4406:3a0:503::2",
-      "kavlan-21": "2001:660:4406:6a0:503::2",
-      "kavlan-3": "2001:660:4406:582:3::2",
-      "kavlan-4": "2001:660:4406:590:3::2",
-      "kavlan-5": "2001:660:4406:591:3::2",
-      "kavlan-6": "2001:660:4406:592:3::2",
-      "kavlan-7": "2001:660:4406:593:3::2",
-      "kavlan-8": "2001:660:4406:594:3::2",
-      "kavlan-9": "2001:660:4406:595:3::2"
+      "kavlan-1": "2001:660:4406:580:3:0::2",
+      "kavlan-11": "2001:660:4406:1a0:503:0::2",
+      "kavlan-12": "2001:660:4406:2a0:503:0::2",
+      "kavlan-13": "2001:660:4406:4a0:503:0::2",
+      "kavlan-14": "2001:660:4406:5a0:503:0::2",
+      "kavlan-16": "2001:660:4406:7a0:503:0::2",
+      "kavlan-18": "2001:660:4406:8a0:503:0::2",
+      "kavlan-2": "2001:660:4406:581:3:0::2",
+      "kavlan-20": "2001:660:4406:3a0:503:0::2",
+      "kavlan-21": "2001:660:4406:6a0:503:0::2",
+      "kavlan-3": "2001:660:4406:582:3:0::2",
+      "kavlan-4": "2001:660:4406:590:3:0::2",
+      "kavlan-5": "2001:660:4406:591:3:0::2",
+      "kavlan-6": "2001:660:4406:592:3:0::2",
+      "kavlan-7": "2001:660:4406:593:3:0::2",
+      "kavlan-8": "2001:660:4406:594:3:0::2",
+      "kavlan-9": "2001:660:4406:595:3:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::2",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.2",
-      "ip6": "2001:660:4406:500:3::2",
+      "ip6": "2001:660:4406:500:3:0::2",
       "kavlan": true,
       "mac": "98:03:9b:b0:65:b2",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
index 446005a1705..4b6f49872d3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-20.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::14",
-      "kavlan-11": "2001:660:4406:1a0:503::14",
-      "kavlan-12": "2001:660:4406:2a0:503::14",
-      "kavlan-13": "2001:660:4406:4a0:503::14",
-      "kavlan-14": "2001:660:4406:5a0:503::14",
-      "kavlan-16": "2001:660:4406:7a0:503::14",
-      "kavlan-18": "2001:660:4406:8a0:503::14",
-      "kavlan-2": "2001:660:4406:581:3::14",
-      "kavlan-20": "2001:660:4406:3a0:503::14",
-      "kavlan-21": "2001:660:4406:6a0:503::14",
-      "kavlan-3": "2001:660:4406:582:3::14",
-      "kavlan-4": "2001:660:4406:590:3::14",
-      "kavlan-5": "2001:660:4406:591:3::14",
-      "kavlan-6": "2001:660:4406:592:3::14",
-      "kavlan-7": "2001:660:4406:593:3::14",
-      "kavlan-8": "2001:660:4406:594:3::14",
-      "kavlan-9": "2001:660:4406:595:3::14"
+      "kavlan-1": "2001:660:4406:580:3:0::14",
+      "kavlan-11": "2001:660:4406:1a0:503:0::14",
+      "kavlan-12": "2001:660:4406:2a0:503:0::14",
+      "kavlan-13": "2001:660:4406:4a0:503:0::14",
+      "kavlan-14": "2001:660:4406:5a0:503:0::14",
+      "kavlan-16": "2001:660:4406:7a0:503:0::14",
+      "kavlan-18": "2001:660:4406:8a0:503:0::14",
+      "kavlan-2": "2001:660:4406:581:3:0::14",
+      "kavlan-20": "2001:660:4406:3a0:503:0::14",
+      "kavlan-21": "2001:660:4406:6a0:503:0::14",
+      "kavlan-3": "2001:660:4406:582:3:0::14",
+      "kavlan-4": "2001:660:4406:590:3:0::14",
+      "kavlan-5": "2001:660:4406:591:3:0::14",
+      "kavlan-6": "2001:660:4406:592:3:0::14",
+      "kavlan-7": "2001:660:4406:593:3:0::14",
+      "kavlan-8": "2001:660:4406:594:3:0::14",
+      "kavlan-9": "2001:660:4406:595:3:0::14"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::14",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.20",
-      "ip6": "2001:660:4406:500:3::14",
+      "ip6": "2001:660:4406:500:3:0::14",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:7e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
index 00b2008da7d..7145655d6c4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-21.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::15",
-      "kavlan-11": "2001:660:4406:1a0:503::15",
-      "kavlan-12": "2001:660:4406:2a0:503::15",
-      "kavlan-13": "2001:660:4406:4a0:503::15",
-      "kavlan-14": "2001:660:4406:5a0:503::15",
-      "kavlan-16": "2001:660:4406:7a0:503::15",
-      "kavlan-18": "2001:660:4406:8a0:503::15",
-      "kavlan-2": "2001:660:4406:581:3::15",
-      "kavlan-20": "2001:660:4406:3a0:503::15",
-      "kavlan-21": "2001:660:4406:6a0:503::15",
-      "kavlan-3": "2001:660:4406:582:3::15",
-      "kavlan-4": "2001:660:4406:590:3::15",
-      "kavlan-5": "2001:660:4406:591:3::15",
-      "kavlan-6": "2001:660:4406:592:3::15",
-      "kavlan-7": "2001:660:4406:593:3::15",
-      "kavlan-8": "2001:660:4406:594:3::15",
-      "kavlan-9": "2001:660:4406:595:3::15"
+      "kavlan-1": "2001:660:4406:580:3:0::15",
+      "kavlan-11": "2001:660:4406:1a0:503:0::15",
+      "kavlan-12": "2001:660:4406:2a0:503:0::15",
+      "kavlan-13": "2001:660:4406:4a0:503:0::15",
+      "kavlan-14": "2001:660:4406:5a0:503:0::15",
+      "kavlan-16": "2001:660:4406:7a0:503:0::15",
+      "kavlan-18": "2001:660:4406:8a0:503:0::15",
+      "kavlan-2": "2001:660:4406:581:3:0::15",
+      "kavlan-20": "2001:660:4406:3a0:503:0::15",
+      "kavlan-21": "2001:660:4406:6a0:503:0::15",
+      "kavlan-3": "2001:660:4406:582:3:0::15",
+      "kavlan-4": "2001:660:4406:590:3:0::15",
+      "kavlan-5": "2001:660:4406:591:3:0::15",
+      "kavlan-6": "2001:660:4406:592:3:0::15",
+      "kavlan-7": "2001:660:4406:593:3:0::15",
+      "kavlan-8": "2001:660:4406:594:3:0::15",
+      "kavlan-9": "2001:660:4406:595:3:0::15"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::15",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.21",
-      "ip6": "2001:660:4406:500:3::15",
+      "ip6": "2001:660:4406:500:3:0::15",
       "kavlan": true,
       "mac": "98:03:9b:b0:a4:4e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
index 41fae315bdd..10d33d30bca 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-22.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::16",
-      "kavlan-11": "2001:660:4406:1a0:503::16",
-      "kavlan-12": "2001:660:4406:2a0:503::16",
-      "kavlan-13": "2001:660:4406:4a0:503::16",
-      "kavlan-14": "2001:660:4406:5a0:503::16",
-      "kavlan-16": "2001:660:4406:7a0:503::16",
-      "kavlan-18": "2001:660:4406:8a0:503::16",
-      "kavlan-2": "2001:660:4406:581:3::16",
-      "kavlan-20": "2001:660:4406:3a0:503::16",
-      "kavlan-21": "2001:660:4406:6a0:503::16",
-      "kavlan-3": "2001:660:4406:582:3::16",
-      "kavlan-4": "2001:660:4406:590:3::16",
-      "kavlan-5": "2001:660:4406:591:3::16",
-      "kavlan-6": "2001:660:4406:592:3::16",
-      "kavlan-7": "2001:660:4406:593:3::16",
-      "kavlan-8": "2001:660:4406:594:3::16",
-      "kavlan-9": "2001:660:4406:595:3::16"
+      "kavlan-1": "2001:660:4406:580:3:0::16",
+      "kavlan-11": "2001:660:4406:1a0:503:0::16",
+      "kavlan-12": "2001:660:4406:2a0:503:0::16",
+      "kavlan-13": "2001:660:4406:4a0:503:0::16",
+      "kavlan-14": "2001:660:4406:5a0:503:0::16",
+      "kavlan-16": "2001:660:4406:7a0:503:0::16",
+      "kavlan-18": "2001:660:4406:8a0:503:0::16",
+      "kavlan-2": "2001:660:4406:581:3:0::16",
+      "kavlan-20": "2001:660:4406:3a0:503:0::16",
+      "kavlan-21": "2001:660:4406:6a0:503:0::16",
+      "kavlan-3": "2001:660:4406:582:3:0::16",
+      "kavlan-4": "2001:660:4406:590:3:0::16",
+      "kavlan-5": "2001:660:4406:591:3:0::16",
+      "kavlan-6": "2001:660:4406:592:3:0::16",
+      "kavlan-7": "2001:660:4406:593:3:0::16",
+      "kavlan-8": "2001:660:4406:594:3:0::16",
+      "kavlan-9": "2001:660:4406:595:3:0::16"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::16",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.22",
-      "ip6": "2001:660:4406:500:3::16",
+      "ip6": "2001:660:4406:500:3:0::16",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
index 574f0b2f747..27a33a6ab64 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-23.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::17",
-      "kavlan-11": "2001:660:4406:1a0:503::17",
-      "kavlan-12": "2001:660:4406:2a0:503::17",
-      "kavlan-13": "2001:660:4406:4a0:503::17",
-      "kavlan-14": "2001:660:4406:5a0:503::17",
-      "kavlan-16": "2001:660:4406:7a0:503::17",
-      "kavlan-18": "2001:660:4406:8a0:503::17",
-      "kavlan-2": "2001:660:4406:581:3::17",
-      "kavlan-20": "2001:660:4406:3a0:503::17",
-      "kavlan-21": "2001:660:4406:6a0:503::17",
-      "kavlan-3": "2001:660:4406:582:3::17",
-      "kavlan-4": "2001:660:4406:590:3::17",
-      "kavlan-5": "2001:660:4406:591:3::17",
-      "kavlan-6": "2001:660:4406:592:3::17",
-      "kavlan-7": "2001:660:4406:593:3::17",
-      "kavlan-8": "2001:660:4406:594:3::17",
-      "kavlan-9": "2001:660:4406:595:3::17"
+      "kavlan-1": "2001:660:4406:580:3:0::17",
+      "kavlan-11": "2001:660:4406:1a0:503:0::17",
+      "kavlan-12": "2001:660:4406:2a0:503:0::17",
+      "kavlan-13": "2001:660:4406:4a0:503:0::17",
+      "kavlan-14": "2001:660:4406:5a0:503:0::17",
+      "kavlan-16": "2001:660:4406:7a0:503:0::17",
+      "kavlan-18": "2001:660:4406:8a0:503:0::17",
+      "kavlan-2": "2001:660:4406:581:3:0::17",
+      "kavlan-20": "2001:660:4406:3a0:503:0::17",
+      "kavlan-21": "2001:660:4406:6a0:503:0::17",
+      "kavlan-3": "2001:660:4406:582:3:0::17",
+      "kavlan-4": "2001:660:4406:590:3:0::17",
+      "kavlan-5": "2001:660:4406:591:3:0::17",
+      "kavlan-6": "2001:660:4406:592:3:0::17",
+      "kavlan-7": "2001:660:4406:593:3:0::17",
+      "kavlan-8": "2001:660:4406:594:3:0::17",
+      "kavlan-9": "2001:660:4406:595:3:0::17"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::17",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.23",
-      "ip6": "2001:660:4406:500:3::17",
+      "ip6": "2001:660:4406:500:3:0::17",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:36",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
index cc9c68271c8..df3d95e4793 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-24.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::18",
-      "kavlan-11": "2001:660:4406:1a0:503::18",
-      "kavlan-12": "2001:660:4406:2a0:503::18",
-      "kavlan-13": "2001:660:4406:4a0:503::18",
-      "kavlan-14": "2001:660:4406:5a0:503::18",
-      "kavlan-16": "2001:660:4406:7a0:503::18",
-      "kavlan-18": "2001:660:4406:8a0:503::18",
-      "kavlan-2": "2001:660:4406:581:3::18",
-      "kavlan-20": "2001:660:4406:3a0:503::18",
-      "kavlan-21": "2001:660:4406:6a0:503::18",
-      "kavlan-3": "2001:660:4406:582:3::18",
-      "kavlan-4": "2001:660:4406:590:3::18",
-      "kavlan-5": "2001:660:4406:591:3::18",
-      "kavlan-6": "2001:660:4406:592:3::18",
-      "kavlan-7": "2001:660:4406:593:3::18",
-      "kavlan-8": "2001:660:4406:594:3::18",
-      "kavlan-9": "2001:660:4406:595:3::18"
+      "kavlan-1": "2001:660:4406:580:3:0::18",
+      "kavlan-11": "2001:660:4406:1a0:503:0::18",
+      "kavlan-12": "2001:660:4406:2a0:503:0::18",
+      "kavlan-13": "2001:660:4406:4a0:503:0::18",
+      "kavlan-14": "2001:660:4406:5a0:503:0::18",
+      "kavlan-16": "2001:660:4406:7a0:503:0::18",
+      "kavlan-18": "2001:660:4406:8a0:503:0::18",
+      "kavlan-2": "2001:660:4406:581:3:0::18",
+      "kavlan-20": "2001:660:4406:3a0:503:0::18",
+      "kavlan-21": "2001:660:4406:6a0:503:0::18",
+      "kavlan-3": "2001:660:4406:582:3:0::18",
+      "kavlan-4": "2001:660:4406:590:3:0::18",
+      "kavlan-5": "2001:660:4406:591:3:0::18",
+      "kavlan-6": "2001:660:4406:592:3:0::18",
+      "kavlan-7": "2001:660:4406:593:3:0::18",
+      "kavlan-8": "2001:660:4406:594:3:0::18",
+      "kavlan-9": "2001:660:4406:595:3:0::18"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::18",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.24",
-      "ip6": "2001:660:4406:500:3::18",
+      "ip6": "2001:660:4406:500:3:0::18",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:fe",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
index 2cc4ebae4f9..dc1265c0005 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-25.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::19",
-      "kavlan-11": "2001:660:4406:1a0:503::19",
-      "kavlan-12": "2001:660:4406:2a0:503::19",
-      "kavlan-13": "2001:660:4406:4a0:503::19",
-      "kavlan-14": "2001:660:4406:5a0:503::19",
-      "kavlan-16": "2001:660:4406:7a0:503::19",
-      "kavlan-18": "2001:660:4406:8a0:503::19",
-      "kavlan-2": "2001:660:4406:581:3::19",
-      "kavlan-20": "2001:660:4406:3a0:503::19",
-      "kavlan-21": "2001:660:4406:6a0:503::19",
-      "kavlan-3": "2001:660:4406:582:3::19",
-      "kavlan-4": "2001:660:4406:590:3::19",
-      "kavlan-5": "2001:660:4406:591:3::19",
-      "kavlan-6": "2001:660:4406:592:3::19",
-      "kavlan-7": "2001:660:4406:593:3::19",
-      "kavlan-8": "2001:660:4406:594:3::19",
-      "kavlan-9": "2001:660:4406:595:3::19"
+      "kavlan-1": "2001:660:4406:580:3:0::19",
+      "kavlan-11": "2001:660:4406:1a0:503:0::19",
+      "kavlan-12": "2001:660:4406:2a0:503:0::19",
+      "kavlan-13": "2001:660:4406:4a0:503:0::19",
+      "kavlan-14": "2001:660:4406:5a0:503:0::19",
+      "kavlan-16": "2001:660:4406:7a0:503:0::19",
+      "kavlan-18": "2001:660:4406:8a0:503:0::19",
+      "kavlan-2": "2001:660:4406:581:3:0::19",
+      "kavlan-20": "2001:660:4406:3a0:503:0::19",
+      "kavlan-21": "2001:660:4406:6a0:503:0::19",
+      "kavlan-3": "2001:660:4406:582:3:0::19",
+      "kavlan-4": "2001:660:4406:590:3:0::19",
+      "kavlan-5": "2001:660:4406:591:3:0::19",
+      "kavlan-6": "2001:660:4406:592:3:0::19",
+      "kavlan-7": "2001:660:4406:593:3:0::19",
+      "kavlan-8": "2001:660:4406:594:3:0::19",
+      "kavlan-9": "2001:660:4406:595:3:0::19"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::19",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.25",
-      "ip6": "2001:660:4406:500:3::19",
+      "ip6": "2001:660:4406:500:3:0::19",
       "kavlan": true,
       "mac": "98:03:9b:b0:cd:7e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
index 55a4dc36402..b552d992457 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-26.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::1a",
-      "kavlan-11": "2001:660:4406:1a0:503::1a",
-      "kavlan-12": "2001:660:4406:2a0:503::1a",
-      "kavlan-13": "2001:660:4406:4a0:503::1a",
-      "kavlan-14": "2001:660:4406:5a0:503::1a",
-      "kavlan-16": "2001:660:4406:7a0:503::1a",
-      "kavlan-18": "2001:660:4406:8a0:503::1a",
-      "kavlan-2": "2001:660:4406:581:3::1a",
-      "kavlan-20": "2001:660:4406:3a0:503::1a",
-      "kavlan-21": "2001:660:4406:6a0:503::1a",
-      "kavlan-3": "2001:660:4406:582:3::1a",
-      "kavlan-4": "2001:660:4406:590:3::1a",
-      "kavlan-5": "2001:660:4406:591:3::1a",
-      "kavlan-6": "2001:660:4406:592:3::1a",
-      "kavlan-7": "2001:660:4406:593:3::1a",
-      "kavlan-8": "2001:660:4406:594:3::1a",
-      "kavlan-9": "2001:660:4406:595:3::1a"
+      "kavlan-1": "2001:660:4406:580:3:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:503:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:503:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:503:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:503:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:503:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:503:0::1a",
+      "kavlan-2": "2001:660:4406:581:3:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:503:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:503:0::1a",
+      "kavlan-3": "2001:660:4406:582:3:0::1a",
+      "kavlan-4": "2001:660:4406:590:3:0::1a",
+      "kavlan-5": "2001:660:4406:591:3:0::1a",
+      "kavlan-6": "2001:660:4406:592:3:0::1a",
+      "kavlan-7": "2001:660:4406:593:3:0::1a",
+      "kavlan-8": "2001:660:4406:594:3:0::1a",
+      "kavlan-9": "2001:660:4406:595:3:0::1a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::1a",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.26",
-      "ip6": "2001:660:4406:500:3::1a",
+      "ip6": "2001:660:4406:500:3:0::1a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:3e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
index de86258cdaf..8d2f2e3a7de 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-27.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::1b",
-      "kavlan-11": "2001:660:4406:1a0:503::1b",
-      "kavlan-12": "2001:660:4406:2a0:503::1b",
-      "kavlan-13": "2001:660:4406:4a0:503::1b",
-      "kavlan-14": "2001:660:4406:5a0:503::1b",
-      "kavlan-16": "2001:660:4406:7a0:503::1b",
-      "kavlan-18": "2001:660:4406:8a0:503::1b",
-      "kavlan-2": "2001:660:4406:581:3::1b",
-      "kavlan-20": "2001:660:4406:3a0:503::1b",
-      "kavlan-21": "2001:660:4406:6a0:503::1b",
-      "kavlan-3": "2001:660:4406:582:3::1b",
-      "kavlan-4": "2001:660:4406:590:3::1b",
-      "kavlan-5": "2001:660:4406:591:3::1b",
-      "kavlan-6": "2001:660:4406:592:3::1b",
-      "kavlan-7": "2001:660:4406:593:3::1b",
-      "kavlan-8": "2001:660:4406:594:3::1b",
-      "kavlan-9": "2001:660:4406:595:3::1b"
+      "kavlan-1": "2001:660:4406:580:3:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:503:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:503:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:503:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:503:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:503:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:503:0::1b",
+      "kavlan-2": "2001:660:4406:581:3:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:503:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:503:0::1b",
+      "kavlan-3": "2001:660:4406:582:3:0::1b",
+      "kavlan-4": "2001:660:4406:590:3:0::1b",
+      "kavlan-5": "2001:660:4406:591:3:0::1b",
+      "kavlan-6": "2001:660:4406:592:3:0::1b",
+      "kavlan-7": "2001:660:4406:593:3:0::1b",
+      "kavlan-8": "2001:660:4406:594:3:0::1b",
+      "kavlan-9": "2001:660:4406:595:3:0::1b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::1b",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.27",
-      "ip6": "2001:660:4406:500:3::1b",
+      "ip6": "2001:660:4406:500:3:0::1b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:fa",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
index b0718a1cc8f..5aed38ca6e3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-28.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::1c",
-      "kavlan-11": "2001:660:4406:1a0:503::1c",
-      "kavlan-12": "2001:660:4406:2a0:503::1c",
-      "kavlan-13": "2001:660:4406:4a0:503::1c",
-      "kavlan-14": "2001:660:4406:5a0:503::1c",
-      "kavlan-16": "2001:660:4406:7a0:503::1c",
-      "kavlan-18": "2001:660:4406:8a0:503::1c",
-      "kavlan-2": "2001:660:4406:581:3::1c",
-      "kavlan-20": "2001:660:4406:3a0:503::1c",
-      "kavlan-21": "2001:660:4406:6a0:503::1c",
-      "kavlan-3": "2001:660:4406:582:3::1c",
-      "kavlan-4": "2001:660:4406:590:3::1c",
-      "kavlan-5": "2001:660:4406:591:3::1c",
-      "kavlan-6": "2001:660:4406:592:3::1c",
-      "kavlan-7": "2001:660:4406:593:3::1c",
-      "kavlan-8": "2001:660:4406:594:3::1c",
-      "kavlan-9": "2001:660:4406:595:3::1c"
+      "kavlan-1": "2001:660:4406:580:3:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:503:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:503:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:503:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:503:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:503:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:503:0::1c",
+      "kavlan-2": "2001:660:4406:581:3:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:503:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:503:0::1c",
+      "kavlan-3": "2001:660:4406:582:3:0::1c",
+      "kavlan-4": "2001:660:4406:590:3:0::1c",
+      "kavlan-5": "2001:660:4406:591:3:0::1c",
+      "kavlan-6": "2001:660:4406:592:3:0::1c",
+      "kavlan-7": "2001:660:4406:593:3:0::1c",
+      "kavlan-8": "2001:660:4406:594:3:0::1c",
+      "kavlan-9": "2001:660:4406:595:3:0::1c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::1c",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.28",
-      "ip6": "2001:660:4406:500:3::1c",
+      "ip6": "2001:660:4406:500:3:0::1c",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:f2",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
index 8bce3d25b11..61ad23f0639 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-29.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::1d",
-      "kavlan-11": "2001:660:4406:1a0:503::1d",
-      "kavlan-12": "2001:660:4406:2a0:503::1d",
-      "kavlan-13": "2001:660:4406:4a0:503::1d",
-      "kavlan-14": "2001:660:4406:5a0:503::1d",
-      "kavlan-16": "2001:660:4406:7a0:503::1d",
-      "kavlan-18": "2001:660:4406:8a0:503::1d",
-      "kavlan-2": "2001:660:4406:581:3::1d",
-      "kavlan-20": "2001:660:4406:3a0:503::1d",
-      "kavlan-21": "2001:660:4406:6a0:503::1d",
-      "kavlan-3": "2001:660:4406:582:3::1d",
-      "kavlan-4": "2001:660:4406:590:3::1d",
-      "kavlan-5": "2001:660:4406:591:3::1d",
-      "kavlan-6": "2001:660:4406:592:3::1d",
-      "kavlan-7": "2001:660:4406:593:3::1d",
-      "kavlan-8": "2001:660:4406:594:3::1d",
-      "kavlan-9": "2001:660:4406:595:3::1d"
+      "kavlan-1": "2001:660:4406:580:3:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:503:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:503:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:503:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:503:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:503:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:503:0::1d",
+      "kavlan-2": "2001:660:4406:581:3:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:503:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:503:0::1d",
+      "kavlan-3": "2001:660:4406:582:3:0::1d",
+      "kavlan-4": "2001:660:4406:590:3:0::1d",
+      "kavlan-5": "2001:660:4406:591:3:0::1d",
+      "kavlan-6": "2001:660:4406:592:3:0::1d",
+      "kavlan-7": "2001:660:4406:593:3:0::1d",
+      "kavlan-8": "2001:660:4406:594:3:0::1d",
+      "kavlan-9": "2001:660:4406:595:3:0::1d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::1d",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.29",
-      "ip6": "2001:660:4406:500:3::1d",
+      "ip6": "2001:660:4406:500:3:0::1d",
       "kavlan": true,
       "mac": "98:03:9b:87:d9:f6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
index b1901cb81a1..5b9ce15ae63 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-3.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::3",
-      "kavlan-11": "2001:660:4406:1a0:503::3",
-      "kavlan-12": "2001:660:4406:2a0:503::3",
-      "kavlan-13": "2001:660:4406:4a0:503::3",
-      "kavlan-14": "2001:660:4406:5a0:503::3",
-      "kavlan-16": "2001:660:4406:7a0:503::3",
-      "kavlan-18": "2001:660:4406:8a0:503::3",
-      "kavlan-2": "2001:660:4406:581:3::3",
-      "kavlan-20": "2001:660:4406:3a0:503::3",
-      "kavlan-21": "2001:660:4406:6a0:503::3",
-      "kavlan-3": "2001:660:4406:582:3::3",
-      "kavlan-4": "2001:660:4406:590:3::3",
-      "kavlan-5": "2001:660:4406:591:3::3",
-      "kavlan-6": "2001:660:4406:592:3::3",
-      "kavlan-7": "2001:660:4406:593:3::3",
-      "kavlan-8": "2001:660:4406:594:3::3",
-      "kavlan-9": "2001:660:4406:595:3::3"
+      "kavlan-1": "2001:660:4406:580:3:0::3",
+      "kavlan-11": "2001:660:4406:1a0:503:0::3",
+      "kavlan-12": "2001:660:4406:2a0:503:0::3",
+      "kavlan-13": "2001:660:4406:4a0:503:0::3",
+      "kavlan-14": "2001:660:4406:5a0:503:0::3",
+      "kavlan-16": "2001:660:4406:7a0:503:0::3",
+      "kavlan-18": "2001:660:4406:8a0:503:0::3",
+      "kavlan-2": "2001:660:4406:581:3:0::3",
+      "kavlan-20": "2001:660:4406:3a0:503:0::3",
+      "kavlan-21": "2001:660:4406:6a0:503:0::3",
+      "kavlan-3": "2001:660:4406:582:3:0::3",
+      "kavlan-4": "2001:660:4406:590:3:0::3",
+      "kavlan-5": "2001:660:4406:591:3:0::3",
+      "kavlan-6": "2001:660:4406:592:3:0::3",
+      "kavlan-7": "2001:660:4406:593:3:0::3",
+      "kavlan-8": "2001:660:4406:594:3:0::3",
+      "kavlan-9": "2001:660:4406:595:3:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::3",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.3",
-      "ip6": "2001:660:4406:500:3::3",
+      "ip6": "2001:660:4406:500:3:0::3",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:a6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
index c36b7f68798..659207aa87d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-30.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::1e",
-      "kavlan-11": "2001:660:4406:1a0:503::1e",
-      "kavlan-12": "2001:660:4406:2a0:503::1e",
-      "kavlan-13": "2001:660:4406:4a0:503::1e",
-      "kavlan-14": "2001:660:4406:5a0:503::1e",
-      "kavlan-16": "2001:660:4406:7a0:503::1e",
-      "kavlan-18": "2001:660:4406:8a0:503::1e",
-      "kavlan-2": "2001:660:4406:581:3::1e",
-      "kavlan-20": "2001:660:4406:3a0:503::1e",
-      "kavlan-21": "2001:660:4406:6a0:503::1e",
-      "kavlan-3": "2001:660:4406:582:3::1e",
-      "kavlan-4": "2001:660:4406:590:3::1e",
-      "kavlan-5": "2001:660:4406:591:3::1e",
-      "kavlan-6": "2001:660:4406:592:3::1e",
-      "kavlan-7": "2001:660:4406:593:3::1e",
-      "kavlan-8": "2001:660:4406:594:3::1e",
-      "kavlan-9": "2001:660:4406:595:3::1e"
+      "kavlan-1": "2001:660:4406:580:3:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:503:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:503:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:503:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:503:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:503:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:503:0::1e",
+      "kavlan-2": "2001:660:4406:581:3:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:503:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:503:0::1e",
+      "kavlan-3": "2001:660:4406:582:3:0::1e",
+      "kavlan-4": "2001:660:4406:590:3:0::1e",
+      "kavlan-5": "2001:660:4406:591:3:0::1e",
+      "kavlan-6": "2001:660:4406:592:3:0::1e",
+      "kavlan-7": "2001:660:4406:593:3:0::1e",
+      "kavlan-8": "2001:660:4406:594:3:0::1e",
+      "kavlan-9": "2001:660:4406:595:3:0::1e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::1e",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.30",
-      "ip6": "2001:660:4406:500:3::1e",
+      "ip6": "2001:660:4406:500:3:0::1e",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:c6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
index 08f9456f331..2062b3bb0ed 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-31.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::1f",
-      "kavlan-11": "2001:660:4406:1a0:503::1f",
-      "kavlan-12": "2001:660:4406:2a0:503::1f",
-      "kavlan-13": "2001:660:4406:4a0:503::1f",
-      "kavlan-14": "2001:660:4406:5a0:503::1f",
-      "kavlan-16": "2001:660:4406:7a0:503::1f",
-      "kavlan-18": "2001:660:4406:8a0:503::1f",
-      "kavlan-2": "2001:660:4406:581:3::1f",
-      "kavlan-20": "2001:660:4406:3a0:503::1f",
-      "kavlan-21": "2001:660:4406:6a0:503::1f",
-      "kavlan-3": "2001:660:4406:582:3::1f",
-      "kavlan-4": "2001:660:4406:590:3::1f",
-      "kavlan-5": "2001:660:4406:591:3::1f",
-      "kavlan-6": "2001:660:4406:592:3::1f",
-      "kavlan-7": "2001:660:4406:593:3::1f",
-      "kavlan-8": "2001:660:4406:594:3::1f",
-      "kavlan-9": "2001:660:4406:595:3::1f"
+      "kavlan-1": "2001:660:4406:580:3:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:503:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:503:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:503:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:503:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:503:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:503:0::1f",
+      "kavlan-2": "2001:660:4406:581:3:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:503:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:503:0::1f",
+      "kavlan-3": "2001:660:4406:582:3:0::1f",
+      "kavlan-4": "2001:660:4406:590:3:0::1f",
+      "kavlan-5": "2001:660:4406:591:3:0::1f",
+      "kavlan-6": "2001:660:4406:592:3:0::1f",
+      "kavlan-7": "2001:660:4406:593:3:0::1f",
+      "kavlan-8": "2001:660:4406:594:3:0::1f",
+      "kavlan-9": "2001:660:4406:595:3:0::1f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::1f",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.31",
-      "ip6": "2001:660:4406:500:3::1f",
+      "ip6": "2001:660:4406:500:3:0::1f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:3e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
index 7132d850038..9af52aad68e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-32.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::20",
-      "kavlan-11": "2001:660:4406:1a0:503::20",
-      "kavlan-12": "2001:660:4406:2a0:503::20",
-      "kavlan-13": "2001:660:4406:4a0:503::20",
-      "kavlan-14": "2001:660:4406:5a0:503::20",
-      "kavlan-16": "2001:660:4406:7a0:503::20",
-      "kavlan-18": "2001:660:4406:8a0:503::20",
-      "kavlan-2": "2001:660:4406:581:3::20",
-      "kavlan-20": "2001:660:4406:3a0:503::20",
-      "kavlan-21": "2001:660:4406:6a0:503::20",
-      "kavlan-3": "2001:660:4406:582:3::20",
-      "kavlan-4": "2001:660:4406:590:3::20",
-      "kavlan-5": "2001:660:4406:591:3::20",
-      "kavlan-6": "2001:660:4406:592:3::20",
-      "kavlan-7": "2001:660:4406:593:3::20",
-      "kavlan-8": "2001:660:4406:594:3::20",
-      "kavlan-9": "2001:660:4406:595:3::20"
+      "kavlan-1": "2001:660:4406:580:3:0::20",
+      "kavlan-11": "2001:660:4406:1a0:503:0::20",
+      "kavlan-12": "2001:660:4406:2a0:503:0::20",
+      "kavlan-13": "2001:660:4406:4a0:503:0::20",
+      "kavlan-14": "2001:660:4406:5a0:503:0::20",
+      "kavlan-16": "2001:660:4406:7a0:503:0::20",
+      "kavlan-18": "2001:660:4406:8a0:503:0::20",
+      "kavlan-2": "2001:660:4406:581:3:0::20",
+      "kavlan-20": "2001:660:4406:3a0:503:0::20",
+      "kavlan-21": "2001:660:4406:6a0:503:0::20",
+      "kavlan-3": "2001:660:4406:582:3:0::20",
+      "kavlan-4": "2001:660:4406:590:3:0::20",
+      "kavlan-5": "2001:660:4406:591:3:0::20",
+      "kavlan-6": "2001:660:4406:592:3:0::20",
+      "kavlan-7": "2001:660:4406:593:3:0::20",
+      "kavlan-8": "2001:660:4406:594:3:0::20",
+      "kavlan-9": "2001:660:4406:595:3:0::20"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::20",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.32",
-      "ip6": "2001:660:4406:500:3::20",
+      "ip6": "2001:660:4406:500:3:0::20",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:22",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
index 26a33eb5fdf..b4027ce9af3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-33.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::21",
-      "kavlan-11": "2001:660:4406:1a0:503::21",
-      "kavlan-12": "2001:660:4406:2a0:503::21",
-      "kavlan-13": "2001:660:4406:4a0:503::21",
-      "kavlan-14": "2001:660:4406:5a0:503::21",
-      "kavlan-16": "2001:660:4406:7a0:503::21",
-      "kavlan-18": "2001:660:4406:8a0:503::21",
-      "kavlan-2": "2001:660:4406:581:3::21",
-      "kavlan-20": "2001:660:4406:3a0:503::21",
-      "kavlan-21": "2001:660:4406:6a0:503::21",
-      "kavlan-3": "2001:660:4406:582:3::21",
-      "kavlan-4": "2001:660:4406:590:3::21",
-      "kavlan-5": "2001:660:4406:591:3::21",
-      "kavlan-6": "2001:660:4406:592:3::21",
-      "kavlan-7": "2001:660:4406:593:3::21",
-      "kavlan-8": "2001:660:4406:594:3::21",
-      "kavlan-9": "2001:660:4406:595:3::21"
+      "kavlan-1": "2001:660:4406:580:3:0::21",
+      "kavlan-11": "2001:660:4406:1a0:503:0::21",
+      "kavlan-12": "2001:660:4406:2a0:503:0::21",
+      "kavlan-13": "2001:660:4406:4a0:503:0::21",
+      "kavlan-14": "2001:660:4406:5a0:503:0::21",
+      "kavlan-16": "2001:660:4406:7a0:503:0::21",
+      "kavlan-18": "2001:660:4406:8a0:503:0::21",
+      "kavlan-2": "2001:660:4406:581:3:0::21",
+      "kavlan-20": "2001:660:4406:3a0:503:0::21",
+      "kavlan-21": "2001:660:4406:6a0:503:0::21",
+      "kavlan-3": "2001:660:4406:582:3:0::21",
+      "kavlan-4": "2001:660:4406:590:3:0::21",
+      "kavlan-5": "2001:660:4406:591:3:0::21",
+      "kavlan-6": "2001:660:4406:592:3:0::21",
+      "kavlan-7": "2001:660:4406:593:3:0::21",
+      "kavlan-8": "2001:660:4406:594:3:0::21",
+      "kavlan-9": "2001:660:4406:595:3:0::21"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::21",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.33",
-      "ip6": "2001:660:4406:500:3::21",
+      "ip6": "2001:660:4406:500:3:0::21",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:12",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
index 492ea0d513e..3a1aa7089c5 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-34.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::22",
-      "kavlan-11": "2001:660:4406:1a0:503::22",
-      "kavlan-12": "2001:660:4406:2a0:503::22",
-      "kavlan-13": "2001:660:4406:4a0:503::22",
-      "kavlan-14": "2001:660:4406:5a0:503::22",
-      "kavlan-16": "2001:660:4406:7a0:503::22",
-      "kavlan-18": "2001:660:4406:8a0:503::22",
-      "kavlan-2": "2001:660:4406:581:3::22",
-      "kavlan-20": "2001:660:4406:3a0:503::22",
-      "kavlan-21": "2001:660:4406:6a0:503::22",
-      "kavlan-3": "2001:660:4406:582:3::22",
-      "kavlan-4": "2001:660:4406:590:3::22",
-      "kavlan-5": "2001:660:4406:591:3::22",
-      "kavlan-6": "2001:660:4406:592:3::22",
-      "kavlan-7": "2001:660:4406:593:3::22",
-      "kavlan-8": "2001:660:4406:594:3::22",
-      "kavlan-9": "2001:660:4406:595:3::22"
+      "kavlan-1": "2001:660:4406:580:3:0::22",
+      "kavlan-11": "2001:660:4406:1a0:503:0::22",
+      "kavlan-12": "2001:660:4406:2a0:503:0::22",
+      "kavlan-13": "2001:660:4406:4a0:503:0::22",
+      "kavlan-14": "2001:660:4406:5a0:503:0::22",
+      "kavlan-16": "2001:660:4406:7a0:503:0::22",
+      "kavlan-18": "2001:660:4406:8a0:503:0::22",
+      "kavlan-2": "2001:660:4406:581:3:0::22",
+      "kavlan-20": "2001:660:4406:3a0:503:0::22",
+      "kavlan-21": "2001:660:4406:6a0:503:0::22",
+      "kavlan-3": "2001:660:4406:582:3:0::22",
+      "kavlan-4": "2001:660:4406:590:3:0::22",
+      "kavlan-5": "2001:660:4406:591:3:0::22",
+      "kavlan-6": "2001:660:4406:592:3:0::22",
+      "kavlan-7": "2001:660:4406:593:3:0::22",
+      "kavlan-8": "2001:660:4406:594:3:0::22",
+      "kavlan-9": "2001:660:4406:595:3:0::22"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::22",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.34",
-      "ip6": "2001:660:4406:500:3::22",
+      "ip6": "2001:660:4406:500:3:0::22",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:22",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
index 9b446b2c249..ce3b62aa3cf 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-35.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::23",
-      "kavlan-11": "2001:660:4406:1a0:503::23",
-      "kavlan-12": "2001:660:4406:2a0:503::23",
-      "kavlan-13": "2001:660:4406:4a0:503::23",
-      "kavlan-14": "2001:660:4406:5a0:503::23",
-      "kavlan-16": "2001:660:4406:7a0:503::23",
-      "kavlan-18": "2001:660:4406:8a0:503::23",
-      "kavlan-2": "2001:660:4406:581:3::23",
-      "kavlan-20": "2001:660:4406:3a0:503::23",
-      "kavlan-21": "2001:660:4406:6a0:503::23",
-      "kavlan-3": "2001:660:4406:582:3::23",
-      "kavlan-4": "2001:660:4406:590:3::23",
-      "kavlan-5": "2001:660:4406:591:3::23",
-      "kavlan-6": "2001:660:4406:592:3::23",
-      "kavlan-7": "2001:660:4406:593:3::23",
-      "kavlan-8": "2001:660:4406:594:3::23",
-      "kavlan-9": "2001:660:4406:595:3::23"
+      "kavlan-1": "2001:660:4406:580:3:0::23",
+      "kavlan-11": "2001:660:4406:1a0:503:0::23",
+      "kavlan-12": "2001:660:4406:2a0:503:0::23",
+      "kavlan-13": "2001:660:4406:4a0:503:0::23",
+      "kavlan-14": "2001:660:4406:5a0:503:0::23",
+      "kavlan-16": "2001:660:4406:7a0:503:0::23",
+      "kavlan-18": "2001:660:4406:8a0:503:0::23",
+      "kavlan-2": "2001:660:4406:581:3:0::23",
+      "kavlan-20": "2001:660:4406:3a0:503:0::23",
+      "kavlan-21": "2001:660:4406:6a0:503:0::23",
+      "kavlan-3": "2001:660:4406:582:3:0::23",
+      "kavlan-4": "2001:660:4406:590:3:0::23",
+      "kavlan-5": "2001:660:4406:591:3:0::23",
+      "kavlan-6": "2001:660:4406:592:3:0::23",
+      "kavlan-7": "2001:660:4406:593:3:0::23",
+      "kavlan-8": "2001:660:4406:594:3:0::23",
+      "kavlan-9": "2001:660:4406:595:3:0::23"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::23",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.35",
-      "ip6": "2001:660:4406:500:3::23",
+      "ip6": "2001:660:4406:500:3:0::23",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:46",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
index fd192e7fcfb..452a8a579a4 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-36.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::24",
-      "kavlan-11": "2001:660:4406:1a0:503::24",
-      "kavlan-12": "2001:660:4406:2a0:503::24",
-      "kavlan-13": "2001:660:4406:4a0:503::24",
-      "kavlan-14": "2001:660:4406:5a0:503::24",
-      "kavlan-16": "2001:660:4406:7a0:503::24",
-      "kavlan-18": "2001:660:4406:8a0:503::24",
-      "kavlan-2": "2001:660:4406:581:3::24",
-      "kavlan-20": "2001:660:4406:3a0:503::24",
-      "kavlan-21": "2001:660:4406:6a0:503::24",
-      "kavlan-3": "2001:660:4406:582:3::24",
-      "kavlan-4": "2001:660:4406:590:3::24",
-      "kavlan-5": "2001:660:4406:591:3::24",
-      "kavlan-6": "2001:660:4406:592:3::24",
-      "kavlan-7": "2001:660:4406:593:3::24",
-      "kavlan-8": "2001:660:4406:594:3::24",
-      "kavlan-9": "2001:660:4406:595:3::24"
+      "kavlan-1": "2001:660:4406:580:3:0::24",
+      "kavlan-11": "2001:660:4406:1a0:503:0::24",
+      "kavlan-12": "2001:660:4406:2a0:503:0::24",
+      "kavlan-13": "2001:660:4406:4a0:503:0::24",
+      "kavlan-14": "2001:660:4406:5a0:503:0::24",
+      "kavlan-16": "2001:660:4406:7a0:503:0::24",
+      "kavlan-18": "2001:660:4406:8a0:503:0::24",
+      "kavlan-2": "2001:660:4406:581:3:0::24",
+      "kavlan-20": "2001:660:4406:3a0:503:0::24",
+      "kavlan-21": "2001:660:4406:6a0:503:0::24",
+      "kavlan-3": "2001:660:4406:582:3:0::24",
+      "kavlan-4": "2001:660:4406:590:3:0::24",
+      "kavlan-5": "2001:660:4406:591:3:0::24",
+      "kavlan-6": "2001:660:4406:592:3:0::24",
+      "kavlan-7": "2001:660:4406:593:3:0::24",
+      "kavlan-8": "2001:660:4406:594:3:0::24",
+      "kavlan-9": "2001:660:4406:595:3:0::24"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::24",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.36",
-      "ip6": "2001:660:4406:500:3::24",
+      "ip6": "2001:660:4406:500:3:0::24",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:6e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
index 9842c97865b..ad603624ef2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-37.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::25",
-      "kavlan-11": "2001:660:4406:1a0:503::25",
-      "kavlan-12": "2001:660:4406:2a0:503::25",
-      "kavlan-13": "2001:660:4406:4a0:503::25",
-      "kavlan-14": "2001:660:4406:5a0:503::25",
-      "kavlan-16": "2001:660:4406:7a0:503::25",
-      "kavlan-18": "2001:660:4406:8a0:503::25",
-      "kavlan-2": "2001:660:4406:581:3::25",
-      "kavlan-20": "2001:660:4406:3a0:503::25",
-      "kavlan-21": "2001:660:4406:6a0:503::25",
-      "kavlan-3": "2001:660:4406:582:3::25",
-      "kavlan-4": "2001:660:4406:590:3::25",
-      "kavlan-5": "2001:660:4406:591:3::25",
-      "kavlan-6": "2001:660:4406:592:3::25",
-      "kavlan-7": "2001:660:4406:593:3::25",
-      "kavlan-8": "2001:660:4406:594:3::25",
-      "kavlan-9": "2001:660:4406:595:3::25"
+      "kavlan-1": "2001:660:4406:580:3:0::25",
+      "kavlan-11": "2001:660:4406:1a0:503:0::25",
+      "kavlan-12": "2001:660:4406:2a0:503:0::25",
+      "kavlan-13": "2001:660:4406:4a0:503:0::25",
+      "kavlan-14": "2001:660:4406:5a0:503:0::25",
+      "kavlan-16": "2001:660:4406:7a0:503:0::25",
+      "kavlan-18": "2001:660:4406:8a0:503:0::25",
+      "kavlan-2": "2001:660:4406:581:3:0::25",
+      "kavlan-20": "2001:660:4406:3a0:503:0::25",
+      "kavlan-21": "2001:660:4406:6a0:503:0::25",
+      "kavlan-3": "2001:660:4406:582:3:0::25",
+      "kavlan-4": "2001:660:4406:590:3:0::25",
+      "kavlan-5": "2001:660:4406:591:3:0::25",
+      "kavlan-6": "2001:660:4406:592:3:0::25",
+      "kavlan-7": "2001:660:4406:593:3:0::25",
+      "kavlan-8": "2001:660:4406:594:3:0::25",
+      "kavlan-9": "2001:660:4406:595:3:0::25"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::25",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.37",
-      "ip6": "2001:660:4406:500:3::25",
+      "ip6": "2001:660:4406:500:3:0::25",
       "kavlan": true,
       "mac": "98:03:9b:b0:69:6a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
index a59c08c2dac..e33cb943a1a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-38.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::26",
-      "kavlan-11": "2001:660:4406:1a0:503::26",
-      "kavlan-12": "2001:660:4406:2a0:503::26",
-      "kavlan-13": "2001:660:4406:4a0:503::26",
-      "kavlan-14": "2001:660:4406:5a0:503::26",
-      "kavlan-16": "2001:660:4406:7a0:503::26",
-      "kavlan-18": "2001:660:4406:8a0:503::26",
-      "kavlan-2": "2001:660:4406:581:3::26",
-      "kavlan-20": "2001:660:4406:3a0:503::26",
-      "kavlan-21": "2001:660:4406:6a0:503::26",
-      "kavlan-3": "2001:660:4406:582:3::26",
-      "kavlan-4": "2001:660:4406:590:3::26",
-      "kavlan-5": "2001:660:4406:591:3::26",
-      "kavlan-6": "2001:660:4406:592:3::26",
-      "kavlan-7": "2001:660:4406:593:3::26",
-      "kavlan-8": "2001:660:4406:594:3::26",
-      "kavlan-9": "2001:660:4406:595:3::26"
+      "kavlan-1": "2001:660:4406:580:3:0::26",
+      "kavlan-11": "2001:660:4406:1a0:503:0::26",
+      "kavlan-12": "2001:660:4406:2a0:503:0::26",
+      "kavlan-13": "2001:660:4406:4a0:503:0::26",
+      "kavlan-14": "2001:660:4406:5a0:503:0::26",
+      "kavlan-16": "2001:660:4406:7a0:503:0::26",
+      "kavlan-18": "2001:660:4406:8a0:503:0::26",
+      "kavlan-2": "2001:660:4406:581:3:0::26",
+      "kavlan-20": "2001:660:4406:3a0:503:0::26",
+      "kavlan-21": "2001:660:4406:6a0:503:0::26",
+      "kavlan-3": "2001:660:4406:582:3:0::26",
+      "kavlan-4": "2001:660:4406:590:3:0::26",
+      "kavlan-5": "2001:660:4406:591:3:0::26",
+      "kavlan-6": "2001:660:4406:592:3:0::26",
+      "kavlan-7": "2001:660:4406:593:3:0::26",
+      "kavlan-8": "2001:660:4406:594:3:0::26",
+      "kavlan-9": "2001:660:4406:595:3:0::26"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::26",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.38",
-      "ip6": "2001:660:4406:500:3::26",
+      "ip6": "2001:660:4406:500:3:0::26",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:ae",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
index 9d9fe1079d2..df3bf0df123 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-39.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::27",
-      "kavlan-11": "2001:660:4406:1a0:503::27",
-      "kavlan-12": "2001:660:4406:2a0:503::27",
-      "kavlan-13": "2001:660:4406:4a0:503::27",
-      "kavlan-14": "2001:660:4406:5a0:503::27",
-      "kavlan-16": "2001:660:4406:7a0:503::27",
-      "kavlan-18": "2001:660:4406:8a0:503::27",
-      "kavlan-2": "2001:660:4406:581:3::27",
-      "kavlan-20": "2001:660:4406:3a0:503::27",
-      "kavlan-21": "2001:660:4406:6a0:503::27",
-      "kavlan-3": "2001:660:4406:582:3::27",
-      "kavlan-4": "2001:660:4406:590:3::27",
-      "kavlan-5": "2001:660:4406:591:3::27",
-      "kavlan-6": "2001:660:4406:592:3::27",
-      "kavlan-7": "2001:660:4406:593:3::27",
-      "kavlan-8": "2001:660:4406:594:3::27",
-      "kavlan-9": "2001:660:4406:595:3::27"
+      "kavlan-1": "2001:660:4406:580:3:0::27",
+      "kavlan-11": "2001:660:4406:1a0:503:0::27",
+      "kavlan-12": "2001:660:4406:2a0:503:0::27",
+      "kavlan-13": "2001:660:4406:4a0:503:0::27",
+      "kavlan-14": "2001:660:4406:5a0:503:0::27",
+      "kavlan-16": "2001:660:4406:7a0:503:0::27",
+      "kavlan-18": "2001:660:4406:8a0:503:0::27",
+      "kavlan-2": "2001:660:4406:581:3:0::27",
+      "kavlan-20": "2001:660:4406:3a0:503:0::27",
+      "kavlan-21": "2001:660:4406:6a0:503:0::27",
+      "kavlan-3": "2001:660:4406:582:3:0::27",
+      "kavlan-4": "2001:660:4406:590:3:0::27",
+      "kavlan-5": "2001:660:4406:591:3:0::27",
+      "kavlan-6": "2001:660:4406:592:3:0::27",
+      "kavlan-7": "2001:660:4406:593:3:0::27",
+      "kavlan-8": "2001:660:4406:594:3:0::27",
+      "kavlan-9": "2001:660:4406:595:3:0::27"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::27",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.39",
-      "ip6": "2001:660:4406:500:3::27",
+      "ip6": "2001:660:4406:500:3:0::27",
       "kavlan": true,
       "mac": "98:03:9b:b0:c7:f6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
index a3658526add..bc92727ca42 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-4.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::4",
-      "kavlan-11": "2001:660:4406:1a0:503::4",
-      "kavlan-12": "2001:660:4406:2a0:503::4",
-      "kavlan-13": "2001:660:4406:4a0:503::4",
-      "kavlan-14": "2001:660:4406:5a0:503::4",
-      "kavlan-16": "2001:660:4406:7a0:503::4",
-      "kavlan-18": "2001:660:4406:8a0:503::4",
-      "kavlan-2": "2001:660:4406:581:3::4",
-      "kavlan-20": "2001:660:4406:3a0:503::4",
-      "kavlan-21": "2001:660:4406:6a0:503::4",
-      "kavlan-3": "2001:660:4406:582:3::4",
-      "kavlan-4": "2001:660:4406:590:3::4",
-      "kavlan-5": "2001:660:4406:591:3::4",
-      "kavlan-6": "2001:660:4406:592:3::4",
-      "kavlan-7": "2001:660:4406:593:3::4",
-      "kavlan-8": "2001:660:4406:594:3::4",
-      "kavlan-9": "2001:660:4406:595:3::4"
+      "kavlan-1": "2001:660:4406:580:3:0::4",
+      "kavlan-11": "2001:660:4406:1a0:503:0::4",
+      "kavlan-12": "2001:660:4406:2a0:503:0::4",
+      "kavlan-13": "2001:660:4406:4a0:503:0::4",
+      "kavlan-14": "2001:660:4406:5a0:503:0::4",
+      "kavlan-16": "2001:660:4406:7a0:503:0::4",
+      "kavlan-18": "2001:660:4406:8a0:503:0::4",
+      "kavlan-2": "2001:660:4406:581:3:0::4",
+      "kavlan-20": "2001:660:4406:3a0:503:0::4",
+      "kavlan-21": "2001:660:4406:6a0:503:0::4",
+      "kavlan-3": "2001:660:4406:582:3:0::4",
+      "kavlan-4": "2001:660:4406:590:3:0::4",
+      "kavlan-5": "2001:660:4406:591:3:0::4",
+      "kavlan-6": "2001:660:4406:592:3:0::4",
+      "kavlan-7": "2001:660:4406:593:3:0::4",
+      "kavlan-8": "2001:660:4406:594:3:0::4",
+      "kavlan-9": "2001:660:4406:595:3:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::4",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.4",
-      "ip6": "2001:660:4406:500:3::4",
+      "ip6": "2001:660:4406:500:3:0::4",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:86",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
index cbc4a9115f2..cd553400b26 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-40.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::28",
-      "kavlan-11": "2001:660:4406:1a0:503::28",
-      "kavlan-12": "2001:660:4406:2a0:503::28",
-      "kavlan-13": "2001:660:4406:4a0:503::28",
-      "kavlan-14": "2001:660:4406:5a0:503::28",
-      "kavlan-16": "2001:660:4406:7a0:503::28",
-      "kavlan-18": "2001:660:4406:8a0:503::28",
-      "kavlan-2": "2001:660:4406:581:3::28",
-      "kavlan-20": "2001:660:4406:3a0:503::28",
-      "kavlan-21": "2001:660:4406:6a0:503::28",
-      "kavlan-3": "2001:660:4406:582:3::28",
-      "kavlan-4": "2001:660:4406:590:3::28",
-      "kavlan-5": "2001:660:4406:591:3::28",
-      "kavlan-6": "2001:660:4406:592:3::28",
-      "kavlan-7": "2001:660:4406:593:3::28",
-      "kavlan-8": "2001:660:4406:594:3::28",
-      "kavlan-9": "2001:660:4406:595:3::28"
+      "kavlan-1": "2001:660:4406:580:3:0::28",
+      "kavlan-11": "2001:660:4406:1a0:503:0::28",
+      "kavlan-12": "2001:660:4406:2a0:503:0::28",
+      "kavlan-13": "2001:660:4406:4a0:503:0::28",
+      "kavlan-14": "2001:660:4406:5a0:503:0::28",
+      "kavlan-16": "2001:660:4406:7a0:503:0::28",
+      "kavlan-18": "2001:660:4406:8a0:503:0::28",
+      "kavlan-2": "2001:660:4406:581:3:0::28",
+      "kavlan-20": "2001:660:4406:3a0:503:0::28",
+      "kavlan-21": "2001:660:4406:6a0:503:0::28",
+      "kavlan-3": "2001:660:4406:582:3:0::28",
+      "kavlan-4": "2001:660:4406:590:3:0::28",
+      "kavlan-5": "2001:660:4406:591:3:0::28",
+      "kavlan-6": "2001:660:4406:592:3:0::28",
+      "kavlan-7": "2001:660:4406:593:3:0::28",
+      "kavlan-8": "2001:660:4406:594:3:0::28",
+      "kavlan-9": "2001:660:4406:595:3:0::28"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::28",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.40",
-      "ip6": "2001:660:4406:500:3::28",
+      "ip6": "2001:660:4406:500:3:0::28",
       "kavlan": true,
       "mac": "98:03:9b:b0:cc:9e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
index 5b7e3b01177..07962dc80db 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-41.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::29",
-      "kavlan-11": "2001:660:4406:1a0:503::29",
-      "kavlan-12": "2001:660:4406:2a0:503::29",
-      "kavlan-13": "2001:660:4406:4a0:503::29",
-      "kavlan-14": "2001:660:4406:5a0:503::29",
-      "kavlan-16": "2001:660:4406:7a0:503::29",
-      "kavlan-18": "2001:660:4406:8a0:503::29",
-      "kavlan-2": "2001:660:4406:581:3::29",
-      "kavlan-20": "2001:660:4406:3a0:503::29",
-      "kavlan-21": "2001:660:4406:6a0:503::29",
-      "kavlan-3": "2001:660:4406:582:3::29",
-      "kavlan-4": "2001:660:4406:590:3::29",
-      "kavlan-5": "2001:660:4406:591:3::29",
-      "kavlan-6": "2001:660:4406:592:3::29",
-      "kavlan-7": "2001:660:4406:593:3::29",
-      "kavlan-8": "2001:660:4406:594:3::29",
-      "kavlan-9": "2001:660:4406:595:3::29"
+      "kavlan-1": "2001:660:4406:580:3:0::29",
+      "kavlan-11": "2001:660:4406:1a0:503:0::29",
+      "kavlan-12": "2001:660:4406:2a0:503:0::29",
+      "kavlan-13": "2001:660:4406:4a0:503:0::29",
+      "kavlan-14": "2001:660:4406:5a0:503:0::29",
+      "kavlan-16": "2001:660:4406:7a0:503:0::29",
+      "kavlan-18": "2001:660:4406:8a0:503:0::29",
+      "kavlan-2": "2001:660:4406:581:3:0::29",
+      "kavlan-20": "2001:660:4406:3a0:503:0::29",
+      "kavlan-21": "2001:660:4406:6a0:503:0::29",
+      "kavlan-3": "2001:660:4406:582:3:0::29",
+      "kavlan-4": "2001:660:4406:590:3:0::29",
+      "kavlan-5": "2001:660:4406:591:3:0::29",
+      "kavlan-6": "2001:660:4406:592:3:0::29",
+      "kavlan-7": "2001:660:4406:593:3:0::29",
+      "kavlan-8": "2001:660:4406:594:3:0::29",
+      "kavlan-9": "2001:660:4406:595:3:0::29"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::29",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.41",
-      "ip6": "2001:660:4406:500:3::29",
+      "ip6": "2001:660:4406:500:3:0::29",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:72",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
index 7b1b1f4bd06..ebf3c8b431b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-42.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::2a",
-      "kavlan-11": "2001:660:4406:1a0:503::2a",
-      "kavlan-12": "2001:660:4406:2a0:503::2a",
-      "kavlan-13": "2001:660:4406:4a0:503::2a",
-      "kavlan-14": "2001:660:4406:5a0:503::2a",
-      "kavlan-16": "2001:660:4406:7a0:503::2a",
-      "kavlan-18": "2001:660:4406:8a0:503::2a",
-      "kavlan-2": "2001:660:4406:581:3::2a",
-      "kavlan-20": "2001:660:4406:3a0:503::2a",
-      "kavlan-21": "2001:660:4406:6a0:503::2a",
-      "kavlan-3": "2001:660:4406:582:3::2a",
-      "kavlan-4": "2001:660:4406:590:3::2a",
-      "kavlan-5": "2001:660:4406:591:3::2a",
-      "kavlan-6": "2001:660:4406:592:3::2a",
-      "kavlan-7": "2001:660:4406:593:3::2a",
-      "kavlan-8": "2001:660:4406:594:3::2a",
-      "kavlan-9": "2001:660:4406:595:3::2a"
+      "kavlan-1": "2001:660:4406:580:3:0::2a",
+      "kavlan-11": "2001:660:4406:1a0:503:0::2a",
+      "kavlan-12": "2001:660:4406:2a0:503:0::2a",
+      "kavlan-13": "2001:660:4406:4a0:503:0::2a",
+      "kavlan-14": "2001:660:4406:5a0:503:0::2a",
+      "kavlan-16": "2001:660:4406:7a0:503:0::2a",
+      "kavlan-18": "2001:660:4406:8a0:503:0::2a",
+      "kavlan-2": "2001:660:4406:581:3:0::2a",
+      "kavlan-20": "2001:660:4406:3a0:503:0::2a",
+      "kavlan-21": "2001:660:4406:6a0:503:0::2a",
+      "kavlan-3": "2001:660:4406:582:3:0::2a",
+      "kavlan-4": "2001:660:4406:590:3:0::2a",
+      "kavlan-5": "2001:660:4406:591:3:0::2a",
+      "kavlan-6": "2001:660:4406:592:3:0::2a",
+      "kavlan-7": "2001:660:4406:593:3:0::2a",
+      "kavlan-8": "2001:660:4406:594:3:0::2a",
+      "kavlan-9": "2001:660:4406:595:3:0::2a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::2a",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.42",
-      "ip6": "2001:660:4406:500:3::2a",
+      "ip6": "2001:660:4406:500:3:0::2a",
       "kavlan": true,
       "mac": "98:03:9b:87:b2:96",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
index fda6b7cbb94..a6e9adf08b2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-43.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::2b",
-      "kavlan-11": "2001:660:4406:1a0:503::2b",
-      "kavlan-12": "2001:660:4406:2a0:503::2b",
-      "kavlan-13": "2001:660:4406:4a0:503::2b",
-      "kavlan-14": "2001:660:4406:5a0:503::2b",
-      "kavlan-16": "2001:660:4406:7a0:503::2b",
-      "kavlan-18": "2001:660:4406:8a0:503::2b",
-      "kavlan-2": "2001:660:4406:581:3::2b",
-      "kavlan-20": "2001:660:4406:3a0:503::2b",
-      "kavlan-21": "2001:660:4406:6a0:503::2b",
-      "kavlan-3": "2001:660:4406:582:3::2b",
-      "kavlan-4": "2001:660:4406:590:3::2b",
-      "kavlan-5": "2001:660:4406:591:3::2b",
-      "kavlan-6": "2001:660:4406:592:3::2b",
-      "kavlan-7": "2001:660:4406:593:3::2b",
-      "kavlan-8": "2001:660:4406:594:3::2b",
-      "kavlan-9": "2001:660:4406:595:3::2b"
+      "kavlan-1": "2001:660:4406:580:3:0::2b",
+      "kavlan-11": "2001:660:4406:1a0:503:0::2b",
+      "kavlan-12": "2001:660:4406:2a0:503:0::2b",
+      "kavlan-13": "2001:660:4406:4a0:503:0::2b",
+      "kavlan-14": "2001:660:4406:5a0:503:0::2b",
+      "kavlan-16": "2001:660:4406:7a0:503:0::2b",
+      "kavlan-18": "2001:660:4406:8a0:503:0::2b",
+      "kavlan-2": "2001:660:4406:581:3:0::2b",
+      "kavlan-20": "2001:660:4406:3a0:503:0::2b",
+      "kavlan-21": "2001:660:4406:6a0:503:0::2b",
+      "kavlan-3": "2001:660:4406:582:3:0::2b",
+      "kavlan-4": "2001:660:4406:590:3:0::2b",
+      "kavlan-5": "2001:660:4406:591:3:0::2b",
+      "kavlan-6": "2001:660:4406:592:3:0::2b",
+      "kavlan-7": "2001:660:4406:593:3:0::2b",
+      "kavlan-8": "2001:660:4406:594:3:0::2b",
+      "kavlan-9": "2001:660:4406:595:3:0::2b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::2b",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.43",
-      "ip6": "2001:660:4406:500:3::2b",
+      "ip6": "2001:660:4406:500:3:0::2b",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:9e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
index da9accc7b11..98280f3aeb8 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-44.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::2c",
-      "kavlan-11": "2001:660:4406:1a0:503::2c",
-      "kavlan-12": "2001:660:4406:2a0:503::2c",
-      "kavlan-13": "2001:660:4406:4a0:503::2c",
-      "kavlan-14": "2001:660:4406:5a0:503::2c",
-      "kavlan-16": "2001:660:4406:7a0:503::2c",
-      "kavlan-18": "2001:660:4406:8a0:503::2c",
-      "kavlan-2": "2001:660:4406:581:3::2c",
-      "kavlan-20": "2001:660:4406:3a0:503::2c",
-      "kavlan-21": "2001:660:4406:6a0:503::2c",
-      "kavlan-3": "2001:660:4406:582:3::2c",
-      "kavlan-4": "2001:660:4406:590:3::2c",
-      "kavlan-5": "2001:660:4406:591:3::2c",
-      "kavlan-6": "2001:660:4406:592:3::2c",
-      "kavlan-7": "2001:660:4406:593:3::2c",
-      "kavlan-8": "2001:660:4406:594:3::2c",
-      "kavlan-9": "2001:660:4406:595:3::2c"
+      "kavlan-1": "2001:660:4406:580:3:0::2c",
+      "kavlan-11": "2001:660:4406:1a0:503:0::2c",
+      "kavlan-12": "2001:660:4406:2a0:503:0::2c",
+      "kavlan-13": "2001:660:4406:4a0:503:0::2c",
+      "kavlan-14": "2001:660:4406:5a0:503:0::2c",
+      "kavlan-16": "2001:660:4406:7a0:503:0::2c",
+      "kavlan-18": "2001:660:4406:8a0:503:0::2c",
+      "kavlan-2": "2001:660:4406:581:3:0::2c",
+      "kavlan-20": "2001:660:4406:3a0:503:0::2c",
+      "kavlan-21": "2001:660:4406:6a0:503:0::2c",
+      "kavlan-3": "2001:660:4406:582:3:0::2c",
+      "kavlan-4": "2001:660:4406:590:3:0::2c",
+      "kavlan-5": "2001:660:4406:591:3:0::2c",
+      "kavlan-6": "2001:660:4406:592:3:0::2c",
+      "kavlan-7": "2001:660:4406:593:3:0::2c",
+      "kavlan-8": "2001:660:4406:594:3:0::2c",
+      "kavlan-9": "2001:660:4406:595:3:0::2c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::2c",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.44",
-      "ip6": "2001:660:4406:500:3::2c",
+      "ip6": "2001:660:4406:500:3:0::2c",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:d6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
index 7ce4b6604cf..bf4c5007f5f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-45.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::2d",
-      "kavlan-11": "2001:660:4406:1a0:503::2d",
-      "kavlan-12": "2001:660:4406:2a0:503::2d",
-      "kavlan-13": "2001:660:4406:4a0:503::2d",
-      "kavlan-14": "2001:660:4406:5a0:503::2d",
-      "kavlan-16": "2001:660:4406:7a0:503::2d",
-      "kavlan-18": "2001:660:4406:8a0:503::2d",
-      "kavlan-2": "2001:660:4406:581:3::2d",
-      "kavlan-20": "2001:660:4406:3a0:503::2d",
-      "kavlan-21": "2001:660:4406:6a0:503::2d",
-      "kavlan-3": "2001:660:4406:582:3::2d",
-      "kavlan-4": "2001:660:4406:590:3::2d",
-      "kavlan-5": "2001:660:4406:591:3::2d",
-      "kavlan-6": "2001:660:4406:592:3::2d",
-      "kavlan-7": "2001:660:4406:593:3::2d",
-      "kavlan-8": "2001:660:4406:594:3::2d",
-      "kavlan-9": "2001:660:4406:595:3::2d"
+      "kavlan-1": "2001:660:4406:580:3:0::2d",
+      "kavlan-11": "2001:660:4406:1a0:503:0::2d",
+      "kavlan-12": "2001:660:4406:2a0:503:0::2d",
+      "kavlan-13": "2001:660:4406:4a0:503:0::2d",
+      "kavlan-14": "2001:660:4406:5a0:503:0::2d",
+      "kavlan-16": "2001:660:4406:7a0:503:0::2d",
+      "kavlan-18": "2001:660:4406:8a0:503:0::2d",
+      "kavlan-2": "2001:660:4406:581:3:0::2d",
+      "kavlan-20": "2001:660:4406:3a0:503:0::2d",
+      "kavlan-21": "2001:660:4406:6a0:503:0::2d",
+      "kavlan-3": "2001:660:4406:582:3:0::2d",
+      "kavlan-4": "2001:660:4406:590:3:0::2d",
+      "kavlan-5": "2001:660:4406:591:3:0::2d",
+      "kavlan-6": "2001:660:4406:592:3:0::2d",
+      "kavlan-7": "2001:660:4406:593:3:0::2d",
+      "kavlan-8": "2001:660:4406:594:3:0::2d",
+      "kavlan-9": "2001:660:4406:595:3:0::2d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::2d",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.45",
-      "ip6": "2001:660:4406:500:3::2d",
+      "ip6": "2001:660:4406:500:3:0::2d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:f6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
index 1422442c667..d7bcd1c6d5d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-46.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::2e",
-      "kavlan-11": "2001:660:4406:1a0:503::2e",
-      "kavlan-12": "2001:660:4406:2a0:503::2e",
-      "kavlan-13": "2001:660:4406:4a0:503::2e",
-      "kavlan-14": "2001:660:4406:5a0:503::2e",
-      "kavlan-16": "2001:660:4406:7a0:503::2e",
-      "kavlan-18": "2001:660:4406:8a0:503::2e",
-      "kavlan-2": "2001:660:4406:581:3::2e",
-      "kavlan-20": "2001:660:4406:3a0:503::2e",
-      "kavlan-21": "2001:660:4406:6a0:503::2e",
-      "kavlan-3": "2001:660:4406:582:3::2e",
-      "kavlan-4": "2001:660:4406:590:3::2e",
-      "kavlan-5": "2001:660:4406:591:3::2e",
-      "kavlan-6": "2001:660:4406:592:3::2e",
-      "kavlan-7": "2001:660:4406:593:3::2e",
-      "kavlan-8": "2001:660:4406:594:3::2e",
-      "kavlan-9": "2001:660:4406:595:3::2e"
+      "kavlan-1": "2001:660:4406:580:3:0::2e",
+      "kavlan-11": "2001:660:4406:1a0:503:0::2e",
+      "kavlan-12": "2001:660:4406:2a0:503:0::2e",
+      "kavlan-13": "2001:660:4406:4a0:503:0::2e",
+      "kavlan-14": "2001:660:4406:5a0:503:0::2e",
+      "kavlan-16": "2001:660:4406:7a0:503:0::2e",
+      "kavlan-18": "2001:660:4406:8a0:503:0::2e",
+      "kavlan-2": "2001:660:4406:581:3:0::2e",
+      "kavlan-20": "2001:660:4406:3a0:503:0::2e",
+      "kavlan-21": "2001:660:4406:6a0:503:0::2e",
+      "kavlan-3": "2001:660:4406:582:3:0::2e",
+      "kavlan-4": "2001:660:4406:590:3:0::2e",
+      "kavlan-5": "2001:660:4406:591:3:0::2e",
+      "kavlan-6": "2001:660:4406:592:3:0::2e",
+      "kavlan-7": "2001:660:4406:593:3:0::2e",
+      "kavlan-8": "2001:660:4406:594:3:0::2e",
+      "kavlan-9": "2001:660:4406:595:3:0::2e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::2e",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.46",
-      "ip6": "2001:660:4406:500:3::2e",
+      "ip6": "2001:660:4406:500:3:0::2e",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:1e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
index 11148ae050c..0ab00ec580a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-47.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::2f",
-      "kavlan-11": "2001:660:4406:1a0:503::2f",
-      "kavlan-12": "2001:660:4406:2a0:503::2f",
-      "kavlan-13": "2001:660:4406:4a0:503::2f",
-      "kavlan-14": "2001:660:4406:5a0:503::2f",
-      "kavlan-16": "2001:660:4406:7a0:503::2f",
-      "kavlan-18": "2001:660:4406:8a0:503::2f",
-      "kavlan-2": "2001:660:4406:581:3::2f",
-      "kavlan-20": "2001:660:4406:3a0:503::2f",
-      "kavlan-21": "2001:660:4406:6a0:503::2f",
-      "kavlan-3": "2001:660:4406:582:3::2f",
-      "kavlan-4": "2001:660:4406:590:3::2f",
-      "kavlan-5": "2001:660:4406:591:3::2f",
-      "kavlan-6": "2001:660:4406:592:3::2f",
-      "kavlan-7": "2001:660:4406:593:3::2f",
-      "kavlan-8": "2001:660:4406:594:3::2f",
-      "kavlan-9": "2001:660:4406:595:3::2f"
+      "kavlan-1": "2001:660:4406:580:3:0::2f",
+      "kavlan-11": "2001:660:4406:1a0:503:0::2f",
+      "kavlan-12": "2001:660:4406:2a0:503:0::2f",
+      "kavlan-13": "2001:660:4406:4a0:503:0::2f",
+      "kavlan-14": "2001:660:4406:5a0:503:0::2f",
+      "kavlan-16": "2001:660:4406:7a0:503:0::2f",
+      "kavlan-18": "2001:660:4406:8a0:503:0::2f",
+      "kavlan-2": "2001:660:4406:581:3:0::2f",
+      "kavlan-20": "2001:660:4406:3a0:503:0::2f",
+      "kavlan-21": "2001:660:4406:6a0:503:0::2f",
+      "kavlan-3": "2001:660:4406:582:3:0::2f",
+      "kavlan-4": "2001:660:4406:590:3:0::2f",
+      "kavlan-5": "2001:660:4406:591:3:0::2f",
+      "kavlan-6": "2001:660:4406:592:3:0::2f",
+      "kavlan-7": "2001:660:4406:593:3:0::2f",
+      "kavlan-8": "2001:660:4406:594:3:0::2f",
+      "kavlan-9": "2001:660:4406:595:3:0::2f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::2f",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.47",
-      "ip6": "2001:660:4406:500:3::2f",
+      "ip6": "2001:660:4406:500:3:0::2f",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:06",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
index 7dae70c3aaf..d2a27823dc0 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-48.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::30",
-      "kavlan-11": "2001:660:4406:1a0:503::30",
-      "kavlan-12": "2001:660:4406:2a0:503::30",
-      "kavlan-13": "2001:660:4406:4a0:503::30",
-      "kavlan-14": "2001:660:4406:5a0:503::30",
-      "kavlan-16": "2001:660:4406:7a0:503::30",
-      "kavlan-18": "2001:660:4406:8a0:503::30",
-      "kavlan-2": "2001:660:4406:581:3::30",
-      "kavlan-20": "2001:660:4406:3a0:503::30",
-      "kavlan-21": "2001:660:4406:6a0:503::30",
-      "kavlan-3": "2001:660:4406:582:3::30",
-      "kavlan-4": "2001:660:4406:590:3::30",
-      "kavlan-5": "2001:660:4406:591:3::30",
-      "kavlan-6": "2001:660:4406:592:3::30",
-      "kavlan-7": "2001:660:4406:593:3::30",
-      "kavlan-8": "2001:660:4406:594:3::30",
-      "kavlan-9": "2001:660:4406:595:3::30"
+      "kavlan-1": "2001:660:4406:580:3:0::30",
+      "kavlan-11": "2001:660:4406:1a0:503:0::30",
+      "kavlan-12": "2001:660:4406:2a0:503:0::30",
+      "kavlan-13": "2001:660:4406:4a0:503:0::30",
+      "kavlan-14": "2001:660:4406:5a0:503:0::30",
+      "kavlan-16": "2001:660:4406:7a0:503:0::30",
+      "kavlan-18": "2001:660:4406:8a0:503:0::30",
+      "kavlan-2": "2001:660:4406:581:3:0::30",
+      "kavlan-20": "2001:660:4406:3a0:503:0::30",
+      "kavlan-21": "2001:660:4406:6a0:503:0::30",
+      "kavlan-3": "2001:660:4406:582:3:0::30",
+      "kavlan-4": "2001:660:4406:590:3:0::30",
+      "kavlan-5": "2001:660:4406:591:3:0::30",
+      "kavlan-6": "2001:660:4406:592:3:0::30",
+      "kavlan-7": "2001:660:4406:593:3:0::30",
+      "kavlan-8": "2001:660:4406:594:3:0::30",
+      "kavlan-9": "2001:660:4406:595:3:0::30"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::30",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.48",
-      "ip6": "2001:660:4406:500:3::30",
+      "ip6": "2001:660:4406:500:3:0::30",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:c6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
index d4c052c84df..7a7652649e2 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-49.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::31",
-      "kavlan-11": "2001:660:4406:1a0:503::31",
-      "kavlan-12": "2001:660:4406:2a0:503::31",
-      "kavlan-13": "2001:660:4406:4a0:503::31",
-      "kavlan-14": "2001:660:4406:5a0:503::31",
-      "kavlan-16": "2001:660:4406:7a0:503::31",
-      "kavlan-18": "2001:660:4406:8a0:503::31",
-      "kavlan-2": "2001:660:4406:581:3::31",
-      "kavlan-20": "2001:660:4406:3a0:503::31",
-      "kavlan-21": "2001:660:4406:6a0:503::31",
-      "kavlan-3": "2001:660:4406:582:3::31",
-      "kavlan-4": "2001:660:4406:590:3::31",
-      "kavlan-5": "2001:660:4406:591:3::31",
-      "kavlan-6": "2001:660:4406:592:3::31",
-      "kavlan-7": "2001:660:4406:593:3::31",
-      "kavlan-8": "2001:660:4406:594:3::31",
-      "kavlan-9": "2001:660:4406:595:3::31"
+      "kavlan-1": "2001:660:4406:580:3:0::31",
+      "kavlan-11": "2001:660:4406:1a0:503:0::31",
+      "kavlan-12": "2001:660:4406:2a0:503:0::31",
+      "kavlan-13": "2001:660:4406:4a0:503:0::31",
+      "kavlan-14": "2001:660:4406:5a0:503:0::31",
+      "kavlan-16": "2001:660:4406:7a0:503:0::31",
+      "kavlan-18": "2001:660:4406:8a0:503:0::31",
+      "kavlan-2": "2001:660:4406:581:3:0::31",
+      "kavlan-20": "2001:660:4406:3a0:503:0::31",
+      "kavlan-21": "2001:660:4406:6a0:503:0::31",
+      "kavlan-3": "2001:660:4406:582:3:0::31",
+      "kavlan-4": "2001:660:4406:590:3:0::31",
+      "kavlan-5": "2001:660:4406:591:3:0::31",
+      "kavlan-6": "2001:660:4406:592:3:0::31",
+      "kavlan-7": "2001:660:4406:593:3:0::31",
+      "kavlan-8": "2001:660:4406:594:3:0::31",
+      "kavlan-9": "2001:660:4406:595:3:0::31"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::31",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.49",
-      "ip6": "2001:660:4406:500:3::31",
+      "ip6": "2001:660:4406:500:3:0::31",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:6e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
index 30374bc83b1..7d487539be7 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-5.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::5",
-      "kavlan-11": "2001:660:4406:1a0:503::5",
-      "kavlan-12": "2001:660:4406:2a0:503::5",
-      "kavlan-13": "2001:660:4406:4a0:503::5",
-      "kavlan-14": "2001:660:4406:5a0:503::5",
-      "kavlan-16": "2001:660:4406:7a0:503::5",
-      "kavlan-18": "2001:660:4406:8a0:503::5",
-      "kavlan-2": "2001:660:4406:581:3::5",
-      "kavlan-20": "2001:660:4406:3a0:503::5",
-      "kavlan-21": "2001:660:4406:6a0:503::5",
-      "kavlan-3": "2001:660:4406:582:3::5",
-      "kavlan-4": "2001:660:4406:590:3::5",
-      "kavlan-5": "2001:660:4406:591:3::5",
-      "kavlan-6": "2001:660:4406:592:3::5",
-      "kavlan-7": "2001:660:4406:593:3::5",
-      "kavlan-8": "2001:660:4406:594:3::5",
-      "kavlan-9": "2001:660:4406:595:3::5"
+      "kavlan-1": "2001:660:4406:580:3:0::5",
+      "kavlan-11": "2001:660:4406:1a0:503:0::5",
+      "kavlan-12": "2001:660:4406:2a0:503:0::5",
+      "kavlan-13": "2001:660:4406:4a0:503:0::5",
+      "kavlan-14": "2001:660:4406:5a0:503:0::5",
+      "kavlan-16": "2001:660:4406:7a0:503:0::5",
+      "kavlan-18": "2001:660:4406:8a0:503:0::5",
+      "kavlan-2": "2001:660:4406:581:3:0::5",
+      "kavlan-20": "2001:660:4406:3a0:503:0::5",
+      "kavlan-21": "2001:660:4406:6a0:503:0::5",
+      "kavlan-3": "2001:660:4406:582:3:0::5",
+      "kavlan-4": "2001:660:4406:590:3:0::5",
+      "kavlan-5": "2001:660:4406:591:3:0::5",
+      "kavlan-6": "2001:660:4406:592:3:0::5",
+      "kavlan-7": "2001:660:4406:593:3:0::5",
+      "kavlan-8": "2001:660:4406:594:3:0::5",
+      "kavlan-9": "2001:660:4406:595:3:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::5",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.5",
-      "ip6": "2001:660:4406:500:3::5",
+      "ip6": "2001:660:4406:500:3:0::5",
       "kavlan": true,
       "mac": "98:03:9b:b0:d2:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
index fcbd410a1e9..a8e2d5e724c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-50.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::32",
-      "kavlan-11": "2001:660:4406:1a0:503::32",
-      "kavlan-12": "2001:660:4406:2a0:503::32",
-      "kavlan-13": "2001:660:4406:4a0:503::32",
-      "kavlan-14": "2001:660:4406:5a0:503::32",
-      "kavlan-16": "2001:660:4406:7a0:503::32",
-      "kavlan-18": "2001:660:4406:8a0:503::32",
-      "kavlan-2": "2001:660:4406:581:3::32",
-      "kavlan-20": "2001:660:4406:3a0:503::32",
-      "kavlan-21": "2001:660:4406:6a0:503::32",
-      "kavlan-3": "2001:660:4406:582:3::32",
-      "kavlan-4": "2001:660:4406:590:3::32",
-      "kavlan-5": "2001:660:4406:591:3::32",
-      "kavlan-6": "2001:660:4406:592:3::32",
-      "kavlan-7": "2001:660:4406:593:3::32",
-      "kavlan-8": "2001:660:4406:594:3::32",
-      "kavlan-9": "2001:660:4406:595:3::32"
+      "kavlan-1": "2001:660:4406:580:3:0::32",
+      "kavlan-11": "2001:660:4406:1a0:503:0::32",
+      "kavlan-12": "2001:660:4406:2a0:503:0::32",
+      "kavlan-13": "2001:660:4406:4a0:503:0::32",
+      "kavlan-14": "2001:660:4406:5a0:503:0::32",
+      "kavlan-16": "2001:660:4406:7a0:503:0::32",
+      "kavlan-18": "2001:660:4406:8a0:503:0::32",
+      "kavlan-2": "2001:660:4406:581:3:0::32",
+      "kavlan-20": "2001:660:4406:3a0:503:0::32",
+      "kavlan-21": "2001:660:4406:6a0:503:0::32",
+      "kavlan-3": "2001:660:4406:582:3:0::32",
+      "kavlan-4": "2001:660:4406:590:3:0::32",
+      "kavlan-5": "2001:660:4406:591:3:0::32",
+      "kavlan-6": "2001:660:4406:592:3:0::32",
+      "kavlan-7": "2001:660:4406:593:3:0::32",
+      "kavlan-8": "2001:660:4406:594:3:0::32",
+      "kavlan-9": "2001:660:4406:595:3:0::32"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::32",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.50",
-      "ip6": "2001:660:4406:500:3::32",
+      "ip6": "2001:660:4406:500:3:0::32",
       "kavlan": true,
       "mac": "98:03:9b:b0:a3:a6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
index 601c48bc7f3..cb976d96552 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-51.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::33",
-      "kavlan-11": "2001:660:4406:1a0:503::33",
-      "kavlan-12": "2001:660:4406:2a0:503::33",
-      "kavlan-13": "2001:660:4406:4a0:503::33",
-      "kavlan-14": "2001:660:4406:5a0:503::33",
-      "kavlan-16": "2001:660:4406:7a0:503::33",
-      "kavlan-18": "2001:660:4406:8a0:503::33",
-      "kavlan-2": "2001:660:4406:581:3::33",
-      "kavlan-20": "2001:660:4406:3a0:503::33",
-      "kavlan-21": "2001:660:4406:6a0:503::33",
-      "kavlan-3": "2001:660:4406:582:3::33",
-      "kavlan-4": "2001:660:4406:590:3::33",
-      "kavlan-5": "2001:660:4406:591:3::33",
-      "kavlan-6": "2001:660:4406:592:3::33",
-      "kavlan-7": "2001:660:4406:593:3::33",
-      "kavlan-8": "2001:660:4406:594:3::33",
-      "kavlan-9": "2001:660:4406:595:3::33"
+      "kavlan-1": "2001:660:4406:580:3:0::33",
+      "kavlan-11": "2001:660:4406:1a0:503:0::33",
+      "kavlan-12": "2001:660:4406:2a0:503:0::33",
+      "kavlan-13": "2001:660:4406:4a0:503:0::33",
+      "kavlan-14": "2001:660:4406:5a0:503:0::33",
+      "kavlan-16": "2001:660:4406:7a0:503:0::33",
+      "kavlan-18": "2001:660:4406:8a0:503:0::33",
+      "kavlan-2": "2001:660:4406:581:3:0::33",
+      "kavlan-20": "2001:660:4406:3a0:503:0::33",
+      "kavlan-21": "2001:660:4406:6a0:503:0::33",
+      "kavlan-3": "2001:660:4406:582:3:0::33",
+      "kavlan-4": "2001:660:4406:590:3:0::33",
+      "kavlan-5": "2001:660:4406:591:3:0::33",
+      "kavlan-6": "2001:660:4406:592:3:0::33",
+      "kavlan-7": "2001:660:4406:593:3:0::33",
+      "kavlan-8": "2001:660:4406:594:3:0::33",
+      "kavlan-9": "2001:660:4406:595:3:0::33"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::33",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.51",
-      "ip6": "2001:660:4406:500:3::33",
+      "ip6": "2001:660:4406:500:3:0::33",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:76",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
index 43f6234b264..493b36b859b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-52.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::34",
-      "kavlan-11": "2001:660:4406:1a0:503::34",
-      "kavlan-12": "2001:660:4406:2a0:503::34",
-      "kavlan-13": "2001:660:4406:4a0:503::34",
-      "kavlan-14": "2001:660:4406:5a0:503::34",
-      "kavlan-16": "2001:660:4406:7a0:503::34",
-      "kavlan-18": "2001:660:4406:8a0:503::34",
-      "kavlan-2": "2001:660:4406:581:3::34",
-      "kavlan-20": "2001:660:4406:3a0:503::34",
-      "kavlan-21": "2001:660:4406:6a0:503::34",
-      "kavlan-3": "2001:660:4406:582:3::34",
-      "kavlan-4": "2001:660:4406:590:3::34",
-      "kavlan-5": "2001:660:4406:591:3::34",
-      "kavlan-6": "2001:660:4406:592:3::34",
-      "kavlan-7": "2001:660:4406:593:3::34",
-      "kavlan-8": "2001:660:4406:594:3::34",
-      "kavlan-9": "2001:660:4406:595:3::34"
+      "kavlan-1": "2001:660:4406:580:3:0::34",
+      "kavlan-11": "2001:660:4406:1a0:503:0::34",
+      "kavlan-12": "2001:660:4406:2a0:503:0::34",
+      "kavlan-13": "2001:660:4406:4a0:503:0::34",
+      "kavlan-14": "2001:660:4406:5a0:503:0::34",
+      "kavlan-16": "2001:660:4406:7a0:503:0::34",
+      "kavlan-18": "2001:660:4406:8a0:503:0::34",
+      "kavlan-2": "2001:660:4406:581:3:0::34",
+      "kavlan-20": "2001:660:4406:3a0:503:0::34",
+      "kavlan-21": "2001:660:4406:6a0:503:0::34",
+      "kavlan-3": "2001:660:4406:582:3:0::34",
+      "kavlan-4": "2001:660:4406:590:3:0::34",
+      "kavlan-5": "2001:660:4406:591:3:0::34",
+      "kavlan-6": "2001:660:4406:592:3:0::34",
+      "kavlan-7": "2001:660:4406:593:3:0::34",
+      "kavlan-8": "2001:660:4406:594:3:0::34",
+      "kavlan-9": "2001:660:4406:595:3:0::34"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::34",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.52",
-      "ip6": "2001:660:4406:500:3::34",
+      "ip6": "2001:660:4406:500:3:0::34",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:16",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
index 9fb09bd3efc..144cc31ca1b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-53.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::35",
-      "kavlan-11": "2001:660:4406:1a0:503::35",
-      "kavlan-12": "2001:660:4406:2a0:503::35",
-      "kavlan-13": "2001:660:4406:4a0:503::35",
-      "kavlan-14": "2001:660:4406:5a0:503::35",
-      "kavlan-16": "2001:660:4406:7a0:503::35",
-      "kavlan-18": "2001:660:4406:8a0:503::35",
-      "kavlan-2": "2001:660:4406:581:3::35",
-      "kavlan-20": "2001:660:4406:3a0:503::35",
-      "kavlan-21": "2001:660:4406:6a0:503::35",
-      "kavlan-3": "2001:660:4406:582:3::35",
-      "kavlan-4": "2001:660:4406:590:3::35",
-      "kavlan-5": "2001:660:4406:591:3::35",
-      "kavlan-6": "2001:660:4406:592:3::35",
-      "kavlan-7": "2001:660:4406:593:3::35",
-      "kavlan-8": "2001:660:4406:594:3::35",
-      "kavlan-9": "2001:660:4406:595:3::35"
+      "kavlan-1": "2001:660:4406:580:3:0::35",
+      "kavlan-11": "2001:660:4406:1a0:503:0::35",
+      "kavlan-12": "2001:660:4406:2a0:503:0::35",
+      "kavlan-13": "2001:660:4406:4a0:503:0::35",
+      "kavlan-14": "2001:660:4406:5a0:503:0::35",
+      "kavlan-16": "2001:660:4406:7a0:503:0::35",
+      "kavlan-18": "2001:660:4406:8a0:503:0::35",
+      "kavlan-2": "2001:660:4406:581:3:0::35",
+      "kavlan-20": "2001:660:4406:3a0:503:0::35",
+      "kavlan-21": "2001:660:4406:6a0:503:0::35",
+      "kavlan-3": "2001:660:4406:582:3:0::35",
+      "kavlan-4": "2001:660:4406:590:3:0::35",
+      "kavlan-5": "2001:660:4406:591:3:0::35",
+      "kavlan-6": "2001:660:4406:592:3:0::35",
+      "kavlan-7": "2001:660:4406:593:3:0::35",
+      "kavlan-8": "2001:660:4406:594:3:0::35",
+      "kavlan-9": "2001:660:4406:595:3:0::35"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::35",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.53",
-      "ip6": "2001:660:4406:500:3::35",
+      "ip6": "2001:660:4406:500:3:0::35",
       "kavlan": true,
       "mac": "98:03:9b:b0:b5:06",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
index bab17628f39..60c3a67deb9 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-54.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::36",
-      "kavlan-11": "2001:660:4406:1a0:503::36",
-      "kavlan-12": "2001:660:4406:2a0:503::36",
-      "kavlan-13": "2001:660:4406:4a0:503::36",
-      "kavlan-14": "2001:660:4406:5a0:503::36",
-      "kavlan-16": "2001:660:4406:7a0:503::36",
-      "kavlan-18": "2001:660:4406:8a0:503::36",
-      "kavlan-2": "2001:660:4406:581:3::36",
-      "kavlan-20": "2001:660:4406:3a0:503::36",
-      "kavlan-21": "2001:660:4406:6a0:503::36",
-      "kavlan-3": "2001:660:4406:582:3::36",
-      "kavlan-4": "2001:660:4406:590:3::36",
-      "kavlan-5": "2001:660:4406:591:3::36",
-      "kavlan-6": "2001:660:4406:592:3::36",
-      "kavlan-7": "2001:660:4406:593:3::36",
-      "kavlan-8": "2001:660:4406:594:3::36",
-      "kavlan-9": "2001:660:4406:595:3::36"
+      "kavlan-1": "2001:660:4406:580:3:0::36",
+      "kavlan-11": "2001:660:4406:1a0:503:0::36",
+      "kavlan-12": "2001:660:4406:2a0:503:0::36",
+      "kavlan-13": "2001:660:4406:4a0:503:0::36",
+      "kavlan-14": "2001:660:4406:5a0:503:0::36",
+      "kavlan-16": "2001:660:4406:7a0:503:0::36",
+      "kavlan-18": "2001:660:4406:8a0:503:0::36",
+      "kavlan-2": "2001:660:4406:581:3:0::36",
+      "kavlan-20": "2001:660:4406:3a0:503:0::36",
+      "kavlan-21": "2001:660:4406:6a0:503:0::36",
+      "kavlan-3": "2001:660:4406:582:3:0::36",
+      "kavlan-4": "2001:660:4406:590:3:0::36",
+      "kavlan-5": "2001:660:4406:591:3:0::36",
+      "kavlan-6": "2001:660:4406:592:3:0::36",
+      "kavlan-7": "2001:660:4406:593:3:0::36",
+      "kavlan-8": "2001:660:4406:594:3:0::36",
+      "kavlan-9": "2001:660:4406:595:3:0::36"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::36",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.54",
-      "ip6": "2001:660:4406:500:3::36",
+      "ip6": "2001:660:4406:500:3:0::36",
       "kavlan": true,
       "mac": "98:03:9b:b0:c8:ee",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
index 376aa3741da..79589ead035 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-55.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::37",
-      "kavlan-11": "2001:660:4406:1a0:503::37",
-      "kavlan-12": "2001:660:4406:2a0:503::37",
-      "kavlan-13": "2001:660:4406:4a0:503::37",
-      "kavlan-14": "2001:660:4406:5a0:503::37",
-      "kavlan-16": "2001:660:4406:7a0:503::37",
-      "kavlan-18": "2001:660:4406:8a0:503::37",
-      "kavlan-2": "2001:660:4406:581:3::37",
-      "kavlan-20": "2001:660:4406:3a0:503::37",
-      "kavlan-21": "2001:660:4406:6a0:503::37",
-      "kavlan-3": "2001:660:4406:582:3::37",
-      "kavlan-4": "2001:660:4406:590:3::37",
-      "kavlan-5": "2001:660:4406:591:3::37",
-      "kavlan-6": "2001:660:4406:592:3::37",
-      "kavlan-7": "2001:660:4406:593:3::37",
-      "kavlan-8": "2001:660:4406:594:3::37",
-      "kavlan-9": "2001:660:4406:595:3::37"
+      "kavlan-1": "2001:660:4406:580:3:0::37",
+      "kavlan-11": "2001:660:4406:1a0:503:0::37",
+      "kavlan-12": "2001:660:4406:2a0:503:0::37",
+      "kavlan-13": "2001:660:4406:4a0:503:0::37",
+      "kavlan-14": "2001:660:4406:5a0:503:0::37",
+      "kavlan-16": "2001:660:4406:7a0:503:0::37",
+      "kavlan-18": "2001:660:4406:8a0:503:0::37",
+      "kavlan-2": "2001:660:4406:581:3:0::37",
+      "kavlan-20": "2001:660:4406:3a0:503:0::37",
+      "kavlan-21": "2001:660:4406:6a0:503:0::37",
+      "kavlan-3": "2001:660:4406:582:3:0::37",
+      "kavlan-4": "2001:660:4406:590:3:0::37",
+      "kavlan-5": "2001:660:4406:591:3:0::37",
+      "kavlan-6": "2001:660:4406:592:3:0::37",
+      "kavlan-7": "2001:660:4406:593:3:0::37",
+      "kavlan-8": "2001:660:4406:594:3:0::37",
+      "kavlan-9": "2001:660:4406:595:3:0::37"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::37",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.55",
-      "ip6": "2001:660:4406:500:3::37",
+      "ip6": "2001:660:4406:500:3:0::37",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:ce",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
index 30ef6d6cb21..3c09097e4e1 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-56.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::38",
-      "kavlan-11": "2001:660:4406:1a0:503::38",
-      "kavlan-12": "2001:660:4406:2a0:503::38",
-      "kavlan-13": "2001:660:4406:4a0:503::38",
-      "kavlan-14": "2001:660:4406:5a0:503::38",
-      "kavlan-16": "2001:660:4406:7a0:503::38",
-      "kavlan-18": "2001:660:4406:8a0:503::38",
-      "kavlan-2": "2001:660:4406:581:3::38",
-      "kavlan-20": "2001:660:4406:3a0:503::38",
-      "kavlan-21": "2001:660:4406:6a0:503::38",
-      "kavlan-3": "2001:660:4406:582:3::38",
-      "kavlan-4": "2001:660:4406:590:3::38",
-      "kavlan-5": "2001:660:4406:591:3::38",
-      "kavlan-6": "2001:660:4406:592:3::38",
-      "kavlan-7": "2001:660:4406:593:3::38",
-      "kavlan-8": "2001:660:4406:594:3::38",
-      "kavlan-9": "2001:660:4406:595:3::38"
+      "kavlan-1": "2001:660:4406:580:3:0::38",
+      "kavlan-11": "2001:660:4406:1a0:503:0::38",
+      "kavlan-12": "2001:660:4406:2a0:503:0::38",
+      "kavlan-13": "2001:660:4406:4a0:503:0::38",
+      "kavlan-14": "2001:660:4406:5a0:503:0::38",
+      "kavlan-16": "2001:660:4406:7a0:503:0::38",
+      "kavlan-18": "2001:660:4406:8a0:503:0::38",
+      "kavlan-2": "2001:660:4406:581:3:0::38",
+      "kavlan-20": "2001:660:4406:3a0:503:0::38",
+      "kavlan-21": "2001:660:4406:6a0:503:0::38",
+      "kavlan-3": "2001:660:4406:582:3:0::38",
+      "kavlan-4": "2001:660:4406:590:3:0::38",
+      "kavlan-5": "2001:660:4406:591:3:0::38",
+      "kavlan-6": "2001:660:4406:592:3:0::38",
+      "kavlan-7": "2001:660:4406:593:3:0::38",
+      "kavlan-8": "2001:660:4406:594:3:0::38",
+      "kavlan-9": "2001:660:4406:595:3:0::38"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::38",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.56",
-      "ip6": "2001:660:4406:500:3::38",
+      "ip6": "2001:660:4406:500:3:0::38",
       "kavlan": true,
       "mac": "98:03:9b:b0:65:12",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
index 217cb5b4576..55138fee1ab 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-57.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::39",
-      "kavlan-11": "2001:660:4406:1a0:503::39",
-      "kavlan-12": "2001:660:4406:2a0:503::39",
-      "kavlan-13": "2001:660:4406:4a0:503::39",
-      "kavlan-14": "2001:660:4406:5a0:503::39",
-      "kavlan-16": "2001:660:4406:7a0:503::39",
-      "kavlan-18": "2001:660:4406:8a0:503::39",
-      "kavlan-2": "2001:660:4406:581:3::39",
-      "kavlan-20": "2001:660:4406:3a0:503::39",
-      "kavlan-21": "2001:660:4406:6a0:503::39",
-      "kavlan-3": "2001:660:4406:582:3::39",
-      "kavlan-4": "2001:660:4406:590:3::39",
-      "kavlan-5": "2001:660:4406:591:3::39",
-      "kavlan-6": "2001:660:4406:592:3::39",
-      "kavlan-7": "2001:660:4406:593:3::39",
-      "kavlan-8": "2001:660:4406:594:3::39",
-      "kavlan-9": "2001:660:4406:595:3::39"
+      "kavlan-1": "2001:660:4406:580:3:0::39",
+      "kavlan-11": "2001:660:4406:1a0:503:0::39",
+      "kavlan-12": "2001:660:4406:2a0:503:0::39",
+      "kavlan-13": "2001:660:4406:4a0:503:0::39",
+      "kavlan-14": "2001:660:4406:5a0:503:0::39",
+      "kavlan-16": "2001:660:4406:7a0:503:0::39",
+      "kavlan-18": "2001:660:4406:8a0:503:0::39",
+      "kavlan-2": "2001:660:4406:581:3:0::39",
+      "kavlan-20": "2001:660:4406:3a0:503:0::39",
+      "kavlan-21": "2001:660:4406:6a0:503:0::39",
+      "kavlan-3": "2001:660:4406:582:3:0::39",
+      "kavlan-4": "2001:660:4406:590:3:0::39",
+      "kavlan-5": "2001:660:4406:591:3:0::39",
+      "kavlan-6": "2001:660:4406:592:3:0::39",
+      "kavlan-7": "2001:660:4406:593:3:0::39",
+      "kavlan-8": "2001:660:4406:594:3:0::39",
+      "kavlan-9": "2001:660:4406:595:3:0::39"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::39",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.57",
-      "ip6": "2001:660:4406:500:3::39",
+      "ip6": "2001:660:4406:500:3:0::39",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:16",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
index 3cee7ca020c..7730de37aee 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-58.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::3a",
-      "kavlan-11": "2001:660:4406:1a0:503::3a",
-      "kavlan-12": "2001:660:4406:2a0:503::3a",
-      "kavlan-13": "2001:660:4406:4a0:503::3a",
-      "kavlan-14": "2001:660:4406:5a0:503::3a",
-      "kavlan-16": "2001:660:4406:7a0:503::3a",
-      "kavlan-18": "2001:660:4406:8a0:503::3a",
-      "kavlan-2": "2001:660:4406:581:3::3a",
-      "kavlan-20": "2001:660:4406:3a0:503::3a",
-      "kavlan-21": "2001:660:4406:6a0:503::3a",
-      "kavlan-3": "2001:660:4406:582:3::3a",
-      "kavlan-4": "2001:660:4406:590:3::3a",
-      "kavlan-5": "2001:660:4406:591:3::3a",
-      "kavlan-6": "2001:660:4406:592:3::3a",
-      "kavlan-7": "2001:660:4406:593:3::3a",
-      "kavlan-8": "2001:660:4406:594:3::3a",
-      "kavlan-9": "2001:660:4406:595:3::3a"
+      "kavlan-1": "2001:660:4406:580:3:0::3a",
+      "kavlan-11": "2001:660:4406:1a0:503:0::3a",
+      "kavlan-12": "2001:660:4406:2a0:503:0::3a",
+      "kavlan-13": "2001:660:4406:4a0:503:0::3a",
+      "kavlan-14": "2001:660:4406:5a0:503:0::3a",
+      "kavlan-16": "2001:660:4406:7a0:503:0::3a",
+      "kavlan-18": "2001:660:4406:8a0:503:0::3a",
+      "kavlan-2": "2001:660:4406:581:3:0::3a",
+      "kavlan-20": "2001:660:4406:3a0:503:0::3a",
+      "kavlan-21": "2001:660:4406:6a0:503:0::3a",
+      "kavlan-3": "2001:660:4406:582:3:0::3a",
+      "kavlan-4": "2001:660:4406:590:3:0::3a",
+      "kavlan-5": "2001:660:4406:591:3:0::3a",
+      "kavlan-6": "2001:660:4406:592:3:0::3a",
+      "kavlan-7": "2001:660:4406:593:3:0::3a",
+      "kavlan-8": "2001:660:4406:594:3:0::3a",
+      "kavlan-9": "2001:660:4406:595:3:0::3a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::3a",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.58",
-      "ip6": "2001:660:4406:500:3::3a",
+      "ip6": "2001:660:4406:500:3:0::3a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c4:ee",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
index 932cbbf083a..d1fa9328205 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-59.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::3b",
-      "kavlan-11": "2001:660:4406:1a0:503::3b",
-      "kavlan-12": "2001:660:4406:2a0:503::3b",
-      "kavlan-13": "2001:660:4406:4a0:503::3b",
-      "kavlan-14": "2001:660:4406:5a0:503::3b",
-      "kavlan-16": "2001:660:4406:7a0:503::3b",
-      "kavlan-18": "2001:660:4406:8a0:503::3b",
-      "kavlan-2": "2001:660:4406:581:3::3b",
-      "kavlan-20": "2001:660:4406:3a0:503::3b",
-      "kavlan-21": "2001:660:4406:6a0:503::3b",
-      "kavlan-3": "2001:660:4406:582:3::3b",
-      "kavlan-4": "2001:660:4406:590:3::3b",
-      "kavlan-5": "2001:660:4406:591:3::3b",
-      "kavlan-6": "2001:660:4406:592:3::3b",
-      "kavlan-7": "2001:660:4406:593:3::3b",
-      "kavlan-8": "2001:660:4406:594:3::3b",
-      "kavlan-9": "2001:660:4406:595:3::3b"
+      "kavlan-1": "2001:660:4406:580:3:0::3b",
+      "kavlan-11": "2001:660:4406:1a0:503:0::3b",
+      "kavlan-12": "2001:660:4406:2a0:503:0::3b",
+      "kavlan-13": "2001:660:4406:4a0:503:0::3b",
+      "kavlan-14": "2001:660:4406:5a0:503:0::3b",
+      "kavlan-16": "2001:660:4406:7a0:503:0::3b",
+      "kavlan-18": "2001:660:4406:8a0:503:0::3b",
+      "kavlan-2": "2001:660:4406:581:3:0::3b",
+      "kavlan-20": "2001:660:4406:3a0:503:0::3b",
+      "kavlan-21": "2001:660:4406:6a0:503:0::3b",
+      "kavlan-3": "2001:660:4406:582:3:0::3b",
+      "kavlan-4": "2001:660:4406:590:3:0::3b",
+      "kavlan-5": "2001:660:4406:591:3:0::3b",
+      "kavlan-6": "2001:660:4406:592:3:0::3b",
+      "kavlan-7": "2001:660:4406:593:3:0::3b",
+      "kavlan-8": "2001:660:4406:594:3:0::3b",
+      "kavlan-9": "2001:660:4406:595:3:0::3b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::3b",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.59",
-      "ip6": "2001:660:4406:500:3::3b",
+      "ip6": "2001:660:4406:500:3:0::3b",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:2e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
index 18c86e351de..4619e21d770 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-6.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::6",
-      "kavlan-11": "2001:660:4406:1a0:503::6",
-      "kavlan-12": "2001:660:4406:2a0:503::6",
-      "kavlan-13": "2001:660:4406:4a0:503::6",
-      "kavlan-14": "2001:660:4406:5a0:503::6",
-      "kavlan-16": "2001:660:4406:7a0:503::6",
-      "kavlan-18": "2001:660:4406:8a0:503::6",
-      "kavlan-2": "2001:660:4406:581:3::6",
-      "kavlan-20": "2001:660:4406:3a0:503::6",
-      "kavlan-21": "2001:660:4406:6a0:503::6",
-      "kavlan-3": "2001:660:4406:582:3::6",
-      "kavlan-4": "2001:660:4406:590:3::6",
-      "kavlan-5": "2001:660:4406:591:3::6",
-      "kavlan-6": "2001:660:4406:592:3::6",
-      "kavlan-7": "2001:660:4406:593:3::6",
-      "kavlan-8": "2001:660:4406:594:3::6",
-      "kavlan-9": "2001:660:4406:595:3::6"
+      "kavlan-1": "2001:660:4406:580:3:0::6",
+      "kavlan-11": "2001:660:4406:1a0:503:0::6",
+      "kavlan-12": "2001:660:4406:2a0:503:0::6",
+      "kavlan-13": "2001:660:4406:4a0:503:0::6",
+      "kavlan-14": "2001:660:4406:5a0:503:0::6",
+      "kavlan-16": "2001:660:4406:7a0:503:0::6",
+      "kavlan-18": "2001:660:4406:8a0:503:0::6",
+      "kavlan-2": "2001:660:4406:581:3:0::6",
+      "kavlan-20": "2001:660:4406:3a0:503:0::6",
+      "kavlan-21": "2001:660:4406:6a0:503:0::6",
+      "kavlan-3": "2001:660:4406:582:3:0::6",
+      "kavlan-4": "2001:660:4406:590:3:0::6",
+      "kavlan-5": "2001:660:4406:591:3:0::6",
+      "kavlan-6": "2001:660:4406:592:3:0::6",
+      "kavlan-7": "2001:660:4406:593:3:0::6",
+      "kavlan-8": "2001:660:4406:594:3:0::6",
+      "kavlan-9": "2001:660:4406:595:3:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::6",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.6",
-      "ip6": "2001:660:4406:500:3::6",
+      "ip6": "2001:660:4406:500:3:0::6",
       "kavlan": true,
       "mac": "98:03:9b:b0:d0:16",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
index 8fc5d0665f2..51edd2614ac 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-60.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::3c",
-      "kavlan-11": "2001:660:4406:1a0:503::3c",
-      "kavlan-12": "2001:660:4406:2a0:503::3c",
-      "kavlan-13": "2001:660:4406:4a0:503::3c",
-      "kavlan-14": "2001:660:4406:5a0:503::3c",
-      "kavlan-16": "2001:660:4406:7a0:503::3c",
-      "kavlan-18": "2001:660:4406:8a0:503::3c",
-      "kavlan-2": "2001:660:4406:581:3::3c",
-      "kavlan-20": "2001:660:4406:3a0:503::3c",
-      "kavlan-21": "2001:660:4406:6a0:503::3c",
-      "kavlan-3": "2001:660:4406:582:3::3c",
-      "kavlan-4": "2001:660:4406:590:3::3c",
-      "kavlan-5": "2001:660:4406:591:3::3c",
-      "kavlan-6": "2001:660:4406:592:3::3c",
-      "kavlan-7": "2001:660:4406:593:3::3c",
-      "kavlan-8": "2001:660:4406:594:3::3c",
-      "kavlan-9": "2001:660:4406:595:3::3c"
+      "kavlan-1": "2001:660:4406:580:3:0::3c",
+      "kavlan-11": "2001:660:4406:1a0:503:0::3c",
+      "kavlan-12": "2001:660:4406:2a0:503:0::3c",
+      "kavlan-13": "2001:660:4406:4a0:503:0::3c",
+      "kavlan-14": "2001:660:4406:5a0:503:0::3c",
+      "kavlan-16": "2001:660:4406:7a0:503:0::3c",
+      "kavlan-18": "2001:660:4406:8a0:503:0::3c",
+      "kavlan-2": "2001:660:4406:581:3:0::3c",
+      "kavlan-20": "2001:660:4406:3a0:503:0::3c",
+      "kavlan-21": "2001:660:4406:6a0:503:0::3c",
+      "kavlan-3": "2001:660:4406:582:3:0::3c",
+      "kavlan-4": "2001:660:4406:590:3:0::3c",
+      "kavlan-5": "2001:660:4406:591:3:0::3c",
+      "kavlan-6": "2001:660:4406:592:3:0::3c",
+      "kavlan-7": "2001:660:4406:593:3:0::3c",
+      "kavlan-8": "2001:660:4406:594:3:0::3c",
+      "kavlan-9": "2001:660:4406:595:3:0::3c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::3c",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.60",
-      "ip6": "2001:660:4406:500:3::3c",
+      "ip6": "2001:660:4406:500:3:0::3c",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:f6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
index 9ee4009fb9a..86a48b0c6f5 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-61.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::3d",
-      "kavlan-11": "2001:660:4406:1a0:503::3d",
-      "kavlan-12": "2001:660:4406:2a0:503::3d",
-      "kavlan-13": "2001:660:4406:4a0:503::3d",
-      "kavlan-14": "2001:660:4406:5a0:503::3d",
-      "kavlan-16": "2001:660:4406:7a0:503::3d",
-      "kavlan-18": "2001:660:4406:8a0:503::3d",
-      "kavlan-2": "2001:660:4406:581:3::3d",
-      "kavlan-20": "2001:660:4406:3a0:503::3d",
-      "kavlan-21": "2001:660:4406:6a0:503::3d",
-      "kavlan-3": "2001:660:4406:582:3::3d",
-      "kavlan-4": "2001:660:4406:590:3::3d",
-      "kavlan-5": "2001:660:4406:591:3::3d",
-      "kavlan-6": "2001:660:4406:592:3::3d",
-      "kavlan-7": "2001:660:4406:593:3::3d",
-      "kavlan-8": "2001:660:4406:594:3::3d",
-      "kavlan-9": "2001:660:4406:595:3::3d"
+      "kavlan-1": "2001:660:4406:580:3:0::3d",
+      "kavlan-11": "2001:660:4406:1a0:503:0::3d",
+      "kavlan-12": "2001:660:4406:2a0:503:0::3d",
+      "kavlan-13": "2001:660:4406:4a0:503:0::3d",
+      "kavlan-14": "2001:660:4406:5a0:503:0::3d",
+      "kavlan-16": "2001:660:4406:7a0:503:0::3d",
+      "kavlan-18": "2001:660:4406:8a0:503:0::3d",
+      "kavlan-2": "2001:660:4406:581:3:0::3d",
+      "kavlan-20": "2001:660:4406:3a0:503:0::3d",
+      "kavlan-21": "2001:660:4406:6a0:503:0::3d",
+      "kavlan-3": "2001:660:4406:582:3:0::3d",
+      "kavlan-4": "2001:660:4406:590:3:0::3d",
+      "kavlan-5": "2001:660:4406:591:3:0::3d",
+      "kavlan-6": "2001:660:4406:592:3:0::3d",
+      "kavlan-7": "2001:660:4406:593:3:0::3d",
+      "kavlan-8": "2001:660:4406:594:3:0::3d",
+      "kavlan-9": "2001:660:4406:595:3:0::3d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::3d",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.61",
-      "ip6": "2001:660:4406:500:3::3d",
+      "ip6": "2001:660:4406:500:3:0::3d",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:1a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
index 765bfa5b33a..95723cebc29 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-62.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::3e",
-      "kavlan-11": "2001:660:4406:1a0:503::3e",
-      "kavlan-12": "2001:660:4406:2a0:503::3e",
-      "kavlan-13": "2001:660:4406:4a0:503::3e",
-      "kavlan-14": "2001:660:4406:5a0:503::3e",
-      "kavlan-16": "2001:660:4406:7a0:503::3e",
-      "kavlan-18": "2001:660:4406:8a0:503::3e",
-      "kavlan-2": "2001:660:4406:581:3::3e",
-      "kavlan-20": "2001:660:4406:3a0:503::3e",
-      "kavlan-21": "2001:660:4406:6a0:503::3e",
-      "kavlan-3": "2001:660:4406:582:3::3e",
-      "kavlan-4": "2001:660:4406:590:3::3e",
-      "kavlan-5": "2001:660:4406:591:3::3e",
-      "kavlan-6": "2001:660:4406:592:3::3e",
-      "kavlan-7": "2001:660:4406:593:3::3e",
-      "kavlan-8": "2001:660:4406:594:3::3e",
-      "kavlan-9": "2001:660:4406:595:3::3e"
+      "kavlan-1": "2001:660:4406:580:3:0::3e",
+      "kavlan-11": "2001:660:4406:1a0:503:0::3e",
+      "kavlan-12": "2001:660:4406:2a0:503:0::3e",
+      "kavlan-13": "2001:660:4406:4a0:503:0::3e",
+      "kavlan-14": "2001:660:4406:5a0:503:0::3e",
+      "kavlan-16": "2001:660:4406:7a0:503:0::3e",
+      "kavlan-18": "2001:660:4406:8a0:503:0::3e",
+      "kavlan-2": "2001:660:4406:581:3:0::3e",
+      "kavlan-20": "2001:660:4406:3a0:503:0::3e",
+      "kavlan-21": "2001:660:4406:6a0:503:0::3e",
+      "kavlan-3": "2001:660:4406:582:3:0::3e",
+      "kavlan-4": "2001:660:4406:590:3:0::3e",
+      "kavlan-5": "2001:660:4406:591:3:0::3e",
+      "kavlan-6": "2001:660:4406:592:3:0::3e",
+      "kavlan-7": "2001:660:4406:593:3:0::3e",
+      "kavlan-8": "2001:660:4406:594:3:0::3e",
+      "kavlan-9": "2001:660:4406:595:3:0::3e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::3e",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.62",
-      "ip6": "2001:660:4406:500:3::3e",
+      "ip6": "2001:660:4406:500:3:0::3e",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:02",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
index 1b65d575f4c..b560b56f1fb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-63.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::3f",
-      "kavlan-11": "2001:660:4406:1a0:503::3f",
-      "kavlan-12": "2001:660:4406:2a0:503::3f",
-      "kavlan-13": "2001:660:4406:4a0:503::3f",
-      "kavlan-14": "2001:660:4406:5a0:503::3f",
-      "kavlan-16": "2001:660:4406:7a0:503::3f",
-      "kavlan-18": "2001:660:4406:8a0:503::3f",
-      "kavlan-2": "2001:660:4406:581:3::3f",
-      "kavlan-20": "2001:660:4406:3a0:503::3f",
-      "kavlan-21": "2001:660:4406:6a0:503::3f",
-      "kavlan-3": "2001:660:4406:582:3::3f",
-      "kavlan-4": "2001:660:4406:590:3::3f",
-      "kavlan-5": "2001:660:4406:591:3::3f",
-      "kavlan-6": "2001:660:4406:592:3::3f",
-      "kavlan-7": "2001:660:4406:593:3::3f",
-      "kavlan-8": "2001:660:4406:594:3::3f",
-      "kavlan-9": "2001:660:4406:595:3::3f"
+      "kavlan-1": "2001:660:4406:580:3:0::3f",
+      "kavlan-11": "2001:660:4406:1a0:503:0::3f",
+      "kavlan-12": "2001:660:4406:2a0:503:0::3f",
+      "kavlan-13": "2001:660:4406:4a0:503:0::3f",
+      "kavlan-14": "2001:660:4406:5a0:503:0::3f",
+      "kavlan-16": "2001:660:4406:7a0:503:0::3f",
+      "kavlan-18": "2001:660:4406:8a0:503:0::3f",
+      "kavlan-2": "2001:660:4406:581:3:0::3f",
+      "kavlan-20": "2001:660:4406:3a0:503:0::3f",
+      "kavlan-21": "2001:660:4406:6a0:503:0::3f",
+      "kavlan-3": "2001:660:4406:582:3:0::3f",
+      "kavlan-4": "2001:660:4406:590:3:0::3f",
+      "kavlan-5": "2001:660:4406:591:3:0::3f",
+      "kavlan-6": "2001:660:4406:592:3:0::3f",
+      "kavlan-7": "2001:660:4406:593:3:0::3f",
+      "kavlan-8": "2001:660:4406:594:3:0::3f",
+      "kavlan-9": "2001:660:4406:595:3:0::3f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::3f",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.63",
-      "ip6": "2001:660:4406:500:3::3f",
+      "ip6": "2001:660:4406:500:3:0::3f",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:66",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
index d98627b70db..947723dd80f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-64.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::40",
-      "kavlan-11": "2001:660:4406:1a0:503::40",
-      "kavlan-12": "2001:660:4406:2a0:503::40",
-      "kavlan-13": "2001:660:4406:4a0:503::40",
-      "kavlan-14": "2001:660:4406:5a0:503::40",
-      "kavlan-16": "2001:660:4406:7a0:503::40",
-      "kavlan-18": "2001:660:4406:8a0:503::40",
-      "kavlan-2": "2001:660:4406:581:3::40",
-      "kavlan-20": "2001:660:4406:3a0:503::40",
-      "kavlan-21": "2001:660:4406:6a0:503::40",
-      "kavlan-3": "2001:660:4406:582:3::40",
-      "kavlan-4": "2001:660:4406:590:3::40",
-      "kavlan-5": "2001:660:4406:591:3::40",
-      "kavlan-6": "2001:660:4406:592:3::40",
-      "kavlan-7": "2001:660:4406:593:3::40",
-      "kavlan-8": "2001:660:4406:594:3::40",
-      "kavlan-9": "2001:660:4406:595:3::40"
+      "kavlan-1": "2001:660:4406:580:3:0::40",
+      "kavlan-11": "2001:660:4406:1a0:503:0::40",
+      "kavlan-12": "2001:660:4406:2a0:503:0::40",
+      "kavlan-13": "2001:660:4406:4a0:503:0::40",
+      "kavlan-14": "2001:660:4406:5a0:503:0::40",
+      "kavlan-16": "2001:660:4406:7a0:503:0::40",
+      "kavlan-18": "2001:660:4406:8a0:503:0::40",
+      "kavlan-2": "2001:660:4406:581:3:0::40",
+      "kavlan-20": "2001:660:4406:3a0:503:0::40",
+      "kavlan-21": "2001:660:4406:6a0:503:0::40",
+      "kavlan-3": "2001:660:4406:582:3:0::40",
+      "kavlan-4": "2001:660:4406:590:3:0::40",
+      "kavlan-5": "2001:660:4406:591:3:0::40",
+      "kavlan-6": "2001:660:4406:592:3:0::40",
+      "kavlan-7": "2001:660:4406:593:3:0::40",
+      "kavlan-8": "2001:660:4406:594:3:0::40",
+      "kavlan-9": "2001:660:4406:595:3:0::40"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::40",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.64",
-      "ip6": "2001:660:4406:500:3::40",
+      "ip6": "2001:660:4406:500:3:0::40",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:86",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
index d76a8b80a11..1fdc8d82c3d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-65.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::41",
-      "kavlan-11": "2001:660:4406:1a0:503::41",
-      "kavlan-12": "2001:660:4406:2a0:503::41",
-      "kavlan-13": "2001:660:4406:4a0:503::41",
-      "kavlan-14": "2001:660:4406:5a0:503::41",
-      "kavlan-16": "2001:660:4406:7a0:503::41",
-      "kavlan-18": "2001:660:4406:8a0:503::41",
-      "kavlan-2": "2001:660:4406:581:3::41",
-      "kavlan-20": "2001:660:4406:3a0:503::41",
-      "kavlan-21": "2001:660:4406:6a0:503::41",
-      "kavlan-3": "2001:660:4406:582:3::41",
-      "kavlan-4": "2001:660:4406:590:3::41",
-      "kavlan-5": "2001:660:4406:591:3::41",
-      "kavlan-6": "2001:660:4406:592:3::41",
-      "kavlan-7": "2001:660:4406:593:3::41",
-      "kavlan-8": "2001:660:4406:594:3::41",
-      "kavlan-9": "2001:660:4406:595:3::41"
+      "kavlan-1": "2001:660:4406:580:3:0::41",
+      "kavlan-11": "2001:660:4406:1a0:503:0::41",
+      "kavlan-12": "2001:660:4406:2a0:503:0::41",
+      "kavlan-13": "2001:660:4406:4a0:503:0::41",
+      "kavlan-14": "2001:660:4406:5a0:503:0::41",
+      "kavlan-16": "2001:660:4406:7a0:503:0::41",
+      "kavlan-18": "2001:660:4406:8a0:503:0::41",
+      "kavlan-2": "2001:660:4406:581:3:0::41",
+      "kavlan-20": "2001:660:4406:3a0:503:0::41",
+      "kavlan-21": "2001:660:4406:6a0:503:0::41",
+      "kavlan-3": "2001:660:4406:582:3:0::41",
+      "kavlan-4": "2001:660:4406:590:3:0::41",
+      "kavlan-5": "2001:660:4406:591:3:0::41",
+      "kavlan-6": "2001:660:4406:592:3:0::41",
+      "kavlan-7": "2001:660:4406:593:3:0::41",
+      "kavlan-8": "2001:660:4406:594:3:0::41",
+      "kavlan-9": "2001:660:4406:595:3:0::41"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::41",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.65",
-      "ip6": "2001:660:4406:500:3::41",
+      "ip6": "2001:660:4406:500:3:0::41",
       "kavlan": true,
       "mac": "98:03:9b:b0:b5:de",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
index e52def03052..c8557317668 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-66.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::42",
-      "kavlan-11": "2001:660:4406:1a0:503::42",
-      "kavlan-12": "2001:660:4406:2a0:503::42",
-      "kavlan-13": "2001:660:4406:4a0:503::42",
-      "kavlan-14": "2001:660:4406:5a0:503::42",
-      "kavlan-16": "2001:660:4406:7a0:503::42",
-      "kavlan-18": "2001:660:4406:8a0:503::42",
-      "kavlan-2": "2001:660:4406:581:3::42",
-      "kavlan-20": "2001:660:4406:3a0:503::42",
-      "kavlan-21": "2001:660:4406:6a0:503::42",
-      "kavlan-3": "2001:660:4406:582:3::42",
-      "kavlan-4": "2001:660:4406:590:3::42",
-      "kavlan-5": "2001:660:4406:591:3::42",
-      "kavlan-6": "2001:660:4406:592:3::42",
-      "kavlan-7": "2001:660:4406:593:3::42",
-      "kavlan-8": "2001:660:4406:594:3::42",
-      "kavlan-9": "2001:660:4406:595:3::42"
+      "kavlan-1": "2001:660:4406:580:3:0::42",
+      "kavlan-11": "2001:660:4406:1a0:503:0::42",
+      "kavlan-12": "2001:660:4406:2a0:503:0::42",
+      "kavlan-13": "2001:660:4406:4a0:503:0::42",
+      "kavlan-14": "2001:660:4406:5a0:503:0::42",
+      "kavlan-16": "2001:660:4406:7a0:503:0::42",
+      "kavlan-18": "2001:660:4406:8a0:503:0::42",
+      "kavlan-2": "2001:660:4406:581:3:0::42",
+      "kavlan-20": "2001:660:4406:3a0:503:0::42",
+      "kavlan-21": "2001:660:4406:6a0:503:0::42",
+      "kavlan-3": "2001:660:4406:582:3:0::42",
+      "kavlan-4": "2001:660:4406:590:3:0::42",
+      "kavlan-5": "2001:660:4406:591:3:0::42",
+      "kavlan-6": "2001:660:4406:592:3:0::42",
+      "kavlan-7": "2001:660:4406:593:3:0::42",
+      "kavlan-8": "2001:660:4406:594:3:0::42",
+      "kavlan-9": "2001:660:4406:595:3:0::42"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::42",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.66",
-      "ip6": "2001:660:4406:500:3::42",
+      "ip6": "2001:660:4406:500:3:0::42",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:1e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
index 5d74a56b3c4..ab99bf72eb6 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-67.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::43",
-      "kavlan-11": "2001:660:4406:1a0:503::43",
-      "kavlan-12": "2001:660:4406:2a0:503::43",
-      "kavlan-13": "2001:660:4406:4a0:503::43",
-      "kavlan-14": "2001:660:4406:5a0:503::43",
-      "kavlan-16": "2001:660:4406:7a0:503::43",
-      "kavlan-18": "2001:660:4406:8a0:503::43",
-      "kavlan-2": "2001:660:4406:581:3::43",
-      "kavlan-20": "2001:660:4406:3a0:503::43",
-      "kavlan-21": "2001:660:4406:6a0:503::43",
-      "kavlan-3": "2001:660:4406:582:3::43",
-      "kavlan-4": "2001:660:4406:590:3::43",
-      "kavlan-5": "2001:660:4406:591:3::43",
-      "kavlan-6": "2001:660:4406:592:3::43",
-      "kavlan-7": "2001:660:4406:593:3::43",
-      "kavlan-8": "2001:660:4406:594:3::43",
-      "kavlan-9": "2001:660:4406:595:3::43"
+      "kavlan-1": "2001:660:4406:580:3:0::43",
+      "kavlan-11": "2001:660:4406:1a0:503:0::43",
+      "kavlan-12": "2001:660:4406:2a0:503:0::43",
+      "kavlan-13": "2001:660:4406:4a0:503:0::43",
+      "kavlan-14": "2001:660:4406:5a0:503:0::43",
+      "kavlan-16": "2001:660:4406:7a0:503:0::43",
+      "kavlan-18": "2001:660:4406:8a0:503:0::43",
+      "kavlan-2": "2001:660:4406:581:3:0::43",
+      "kavlan-20": "2001:660:4406:3a0:503:0::43",
+      "kavlan-21": "2001:660:4406:6a0:503:0::43",
+      "kavlan-3": "2001:660:4406:582:3:0::43",
+      "kavlan-4": "2001:660:4406:590:3:0::43",
+      "kavlan-5": "2001:660:4406:591:3:0::43",
+      "kavlan-6": "2001:660:4406:592:3:0::43",
+      "kavlan-7": "2001:660:4406:593:3:0::43",
+      "kavlan-8": "2001:660:4406:594:3:0::43",
+      "kavlan-9": "2001:660:4406:595:3:0::43"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::43",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.67",
-      "ip6": "2001:660:4406:500:3::43",
+      "ip6": "2001:660:4406:500:3:0::43",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:1e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
index e39b408566f..c44bedc992d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-68.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::44",
-      "kavlan-11": "2001:660:4406:1a0:503::44",
-      "kavlan-12": "2001:660:4406:2a0:503::44",
-      "kavlan-13": "2001:660:4406:4a0:503::44",
-      "kavlan-14": "2001:660:4406:5a0:503::44",
-      "kavlan-16": "2001:660:4406:7a0:503::44",
-      "kavlan-18": "2001:660:4406:8a0:503::44",
-      "kavlan-2": "2001:660:4406:581:3::44",
-      "kavlan-20": "2001:660:4406:3a0:503::44",
-      "kavlan-21": "2001:660:4406:6a0:503::44",
-      "kavlan-3": "2001:660:4406:582:3::44",
-      "kavlan-4": "2001:660:4406:590:3::44",
-      "kavlan-5": "2001:660:4406:591:3::44",
-      "kavlan-6": "2001:660:4406:592:3::44",
-      "kavlan-7": "2001:660:4406:593:3::44",
-      "kavlan-8": "2001:660:4406:594:3::44",
-      "kavlan-9": "2001:660:4406:595:3::44"
+      "kavlan-1": "2001:660:4406:580:3:0::44",
+      "kavlan-11": "2001:660:4406:1a0:503:0::44",
+      "kavlan-12": "2001:660:4406:2a0:503:0::44",
+      "kavlan-13": "2001:660:4406:4a0:503:0::44",
+      "kavlan-14": "2001:660:4406:5a0:503:0::44",
+      "kavlan-16": "2001:660:4406:7a0:503:0::44",
+      "kavlan-18": "2001:660:4406:8a0:503:0::44",
+      "kavlan-2": "2001:660:4406:581:3:0::44",
+      "kavlan-20": "2001:660:4406:3a0:503:0::44",
+      "kavlan-21": "2001:660:4406:6a0:503:0::44",
+      "kavlan-3": "2001:660:4406:582:3:0::44",
+      "kavlan-4": "2001:660:4406:590:3:0::44",
+      "kavlan-5": "2001:660:4406:591:3:0::44",
+      "kavlan-6": "2001:660:4406:592:3:0::44",
+      "kavlan-7": "2001:660:4406:593:3:0::44",
+      "kavlan-8": "2001:660:4406:594:3:0::44",
+      "kavlan-9": "2001:660:4406:595:3:0::44"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::44",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.68",
-      "ip6": "2001:660:4406:500:3::44",
+      "ip6": "2001:660:4406:500:3:0::44",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:5e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
index edf4170f970..0dd24dcaa1a 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-69.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::45",
-      "kavlan-11": "2001:660:4406:1a0:503::45",
-      "kavlan-12": "2001:660:4406:2a0:503::45",
-      "kavlan-13": "2001:660:4406:4a0:503::45",
-      "kavlan-14": "2001:660:4406:5a0:503::45",
-      "kavlan-16": "2001:660:4406:7a0:503::45",
-      "kavlan-18": "2001:660:4406:8a0:503::45",
-      "kavlan-2": "2001:660:4406:581:3::45",
-      "kavlan-20": "2001:660:4406:3a0:503::45",
-      "kavlan-21": "2001:660:4406:6a0:503::45",
-      "kavlan-3": "2001:660:4406:582:3::45",
-      "kavlan-4": "2001:660:4406:590:3::45",
-      "kavlan-5": "2001:660:4406:591:3::45",
-      "kavlan-6": "2001:660:4406:592:3::45",
-      "kavlan-7": "2001:660:4406:593:3::45",
-      "kavlan-8": "2001:660:4406:594:3::45",
-      "kavlan-9": "2001:660:4406:595:3::45"
+      "kavlan-1": "2001:660:4406:580:3:0::45",
+      "kavlan-11": "2001:660:4406:1a0:503:0::45",
+      "kavlan-12": "2001:660:4406:2a0:503:0::45",
+      "kavlan-13": "2001:660:4406:4a0:503:0::45",
+      "kavlan-14": "2001:660:4406:5a0:503:0::45",
+      "kavlan-16": "2001:660:4406:7a0:503:0::45",
+      "kavlan-18": "2001:660:4406:8a0:503:0::45",
+      "kavlan-2": "2001:660:4406:581:3:0::45",
+      "kavlan-20": "2001:660:4406:3a0:503:0::45",
+      "kavlan-21": "2001:660:4406:6a0:503:0::45",
+      "kavlan-3": "2001:660:4406:582:3:0::45",
+      "kavlan-4": "2001:660:4406:590:3:0::45",
+      "kavlan-5": "2001:660:4406:591:3:0::45",
+      "kavlan-6": "2001:660:4406:592:3:0::45",
+      "kavlan-7": "2001:660:4406:593:3:0::45",
+      "kavlan-8": "2001:660:4406:594:3:0::45",
+      "kavlan-9": "2001:660:4406:595:3:0::45"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::45",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.69",
-      "ip6": "2001:660:4406:500:3::45",
+      "ip6": "2001:660:4406:500:3:0::45",
       "kavlan": true,
       "mac": "98:03:9b:b0:c9:a6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
index 8caa87067e7..df0154ad7b1 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-7.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::7",
-      "kavlan-11": "2001:660:4406:1a0:503::7",
-      "kavlan-12": "2001:660:4406:2a0:503::7",
-      "kavlan-13": "2001:660:4406:4a0:503::7",
-      "kavlan-14": "2001:660:4406:5a0:503::7",
-      "kavlan-16": "2001:660:4406:7a0:503::7",
-      "kavlan-18": "2001:660:4406:8a0:503::7",
-      "kavlan-2": "2001:660:4406:581:3::7",
-      "kavlan-20": "2001:660:4406:3a0:503::7",
-      "kavlan-21": "2001:660:4406:6a0:503::7",
-      "kavlan-3": "2001:660:4406:582:3::7",
-      "kavlan-4": "2001:660:4406:590:3::7",
-      "kavlan-5": "2001:660:4406:591:3::7",
-      "kavlan-6": "2001:660:4406:592:3::7",
-      "kavlan-7": "2001:660:4406:593:3::7",
-      "kavlan-8": "2001:660:4406:594:3::7",
-      "kavlan-9": "2001:660:4406:595:3::7"
+      "kavlan-1": "2001:660:4406:580:3:0::7",
+      "kavlan-11": "2001:660:4406:1a0:503:0::7",
+      "kavlan-12": "2001:660:4406:2a0:503:0::7",
+      "kavlan-13": "2001:660:4406:4a0:503:0::7",
+      "kavlan-14": "2001:660:4406:5a0:503:0::7",
+      "kavlan-16": "2001:660:4406:7a0:503:0::7",
+      "kavlan-18": "2001:660:4406:8a0:503:0::7",
+      "kavlan-2": "2001:660:4406:581:3:0::7",
+      "kavlan-20": "2001:660:4406:3a0:503:0::7",
+      "kavlan-21": "2001:660:4406:6a0:503:0::7",
+      "kavlan-3": "2001:660:4406:582:3:0::7",
+      "kavlan-4": "2001:660:4406:590:3:0::7",
+      "kavlan-5": "2001:660:4406:591:3:0::7",
+      "kavlan-6": "2001:660:4406:592:3:0::7",
+      "kavlan-7": "2001:660:4406:593:3:0::7",
+      "kavlan-8": "2001:660:4406:594:3:0::7",
+      "kavlan-9": "2001:660:4406:595:3:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::7",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.7",
-      "ip6": "2001:660:4406:500:3::7",
+      "ip6": "2001:660:4406:500:3:0::7",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:fe",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
index 0ea8c748e7a..7a8e5d18a93 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-70.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::46",
-      "kavlan-11": "2001:660:4406:1a0:503::46",
-      "kavlan-12": "2001:660:4406:2a0:503::46",
-      "kavlan-13": "2001:660:4406:4a0:503::46",
-      "kavlan-14": "2001:660:4406:5a0:503::46",
-      "kavlan-16": "2001:660:4406:7a0:503::46",
-      "kavlan-18": "2001:660:4406:8a0:503::46",
-      "kavlan-2": "2001:660:4406:581:3::46",
-      "kavlan-20": "2001:660:4406:3a0:503::46",
-      "kavlan-21": "2001:660:4406:6a0:503::46",
-      "kavlan-3": "2001:660:4406:582:3::46",
-      "kavlan-4": "2001:660:4406:590:3::46",
-      "kavlan-5": "2001:660:4406:591:3::46",
-      "kavlan-6": "2001:660:4406:592:3::46",
-      "kavlan-7": "2001:660:4406:593:3::46",
-      "kavlan-8": "2001:660:4406:594:3::46",
-      "kavlan-9": "2001:660:4406:595:3::46"
+      "kavlan-1": "2001:660:4406:580:3:0::46",
+      "kavlan-11": "2001:660:4406:1a0:503:0::46",
+      "kavlan-12": "2001:660:4406:2a0:503:0::46",
+      "kavlan-13": "2001:660:4406:4a0:503:0::46",
+      "kavlan-14": "2001:660:4406:5a0:503:0::46",
+      "kavlan-16": "2001:660:4406:7a0:503:0::46",
+      "kavlan-18": "2001:660:4406:8a0:503:0::46",
+      "kavlan-2": "2001:660:4406:581:3:0::46",
+      "kavlan-20": "2001:660:4406:3a0:503:0::46",
+      "kavlan-21": "2001:660:4406:6a0:503:0::46",
+      "kavlan-3": "2001:660:4406:582:3:0::46",
+      "kavlan-4": "2001:660:4406:590:3:0::46",
+      "kavlan-5": "2001:660:4406:591:3:0::46",
+      "kavlan-6": "2001:660:4406:592:3:0::46",
+      "kavlan-7": "2001:660:4406:593:3:0::46",
+      "kavlan-8": "2001:660:4406:594:3:0::46",
+      "kavlan-9": "2001:660:4406:595:3:0::46"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::46",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.70",
-      "ip6": "2001:660:4406:500:3::46",
+      "ip6": "2001:660:4406:500:3:0::46",
       "kavlan": true,
       "mac": "98:03:9b:b0:ca:7e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
index 90835e6de94..b83cb6d6230 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-71.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::47",
-      "kavlan-11": "2001:660:4406:1a0:503::47",
-      "kavlan-12": "2001:660:4406:2a0:503::47",
-      "kavlan-13": "2001:660:4406:4a0:503::47",
-      "kavlan-14": "2001:660:4406:5a0:503::47",
-      "kavlan-16": "2001:660:4406:7a0:503::47",
-      "kavlan-18": "2001:660:4406:8a0:503::47",
-      "kavlan-2": "2001:660:4406:581:3::47",
-      "kavlan-20": "2001:660:4406:3a0:503::47",
-      "kavlan-21": "2001:660:4406:6a0:503::47",
-      "kavlan-3": "2001:660:4406:582:3::47",
-      "kavlan-4": "2001:660:4406:590:3::47",
-      "kavlan-5": "2001:660:4406:591:3::47",
-      "kavlan-6": "2001:660:4406:592:3::47",
-      "kavlan-7": "2001:660:4406:593:3::47",
-      "kavlan-8": "2001:660:4406:594:3::47",
-      "kavlan-9": "2001:660:4406:595:3::47"
+      "kavlan-1": "2001:660:4406:580:3:0::47",
+      "kavlan-11": "2001:660:4406:1a0:503:0::47",
+      "kavlan-12": "2001:660:4406:2a0:503:0::47",
+      "kavlan-13": "2001:660:4406:4a0:503:0::47",
+      "kavlan-14": "2001:660:4406:5a0:503:0::47",
+      "kavlan-16": "2001:660:4406:7a0:503:0::47",
+      "kavlan-18": "2001:660:4406:8a0:503:0::47",
+      "kavlan-2": "2001:660:4406:581:3:0::47",
+      "kavlan-20": "2001:660:4406:3a0:503:0::47",
+      "kavlan-21": "2001:660:4406:6a0:503:0::47",
+      "kavlan-3": "2001:660:4406:582:3:0::47",
+      "kavlan-4": "2001:660:4406:590:3:0::47",
+      "kavlan-5": "2001:660:4406:591:3:0::47",
+      "kavlan-6": "2001:660:4406:592:3:0::47",
+      "kavlan-7": "2001:660:4406:593:3:0::47",
+      "kavlan-8": "2001:660:4406:594:3:0::47",
+      "kavlan-9": "2001:660:4406:595:3:0::47"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::47",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.71",
-      "ip6": "2001:660:4406:500:3::47",
+      "ip6": "2001:660:4406:500:3:0::47",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:0a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
index 63c6b6ce123..67ddf4e6838 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-72.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::48",
-      "kavlan-11": "2001:660:4406:1a0:503::48",
-      "kavlan-12": "2001:660:4406:2a0:503::48",
-      "kavlan-13": "2001:660:4406:4a0:503::48",
-      "kavlan-14": "2001:660:4406:5a0:503::48",
-      "kavlan-16": "2001:660:4406:7a0:503::48",
-      "kavlan-18": "2001:660:4406:8a0:503::48",
-      "kavlan-2": "2001:660:4406:581:3::48",
-      "kavlan-20": "2001:660:4406:3a0:503::48",
-      "kavlan-21": "2001:660:4406:6a0:503::48",
-      "kavlan-3": "2001:660:4406:582:3::48",
-      "kavlan-4": "2001:660:4406:590:3::48",
-      "kavlan-5": "2001:660:4406:591:3::48",
-      "kavlan-6": "2001:660:4406:592:3::48",
-      "kavlan-7": "2001:660:4406:593:3::48",
-      "kavlan-8": "2001:660:4406:594:3::48",
-      "kavlan-9": "2001:660:4406:595:3::48"
+      "kavlan-1": "2001:660:4406:580:3:0::48",
+      "kavlan-11": "2001:660:4406:1a0:503:0::48",
+      "kavlan-12": "2001:660:4406:2a0:503:0::48",
+      "kavlan-13": "2001:660:4406:4a0:503:0::48",
+      "kavlan-14": "2001:660:4406:5a0:503:0::48",
+      "kavlan-16": "2001:660:4406:7a0:503:0::48",
+      "kavlan-18": "2001:660:4406:8a0:503:0::48",
+      "kavlan-2": "2001:660:4406:581:3:0::48",
+      "kavlan-20": "2001:660:4406:3a0:503:0::48",
+      "kavlan-21": "2001:660:4406:6a0:503:0::48",
+      "kavlan-3": "2001:660:4406:582:3:0::48",
+      "kavlan-4": "2001:660:4406:590:3:0::48",
+      "kavlan-5": "2001:660:4406:591:3:0::48",
+      "kavlan-6": "2001:660:4406:592:3:0::48",
+      "kavlan-7": "2001:660:4406:593:3:0::48",
+      "kavlan-8": "2001:660:4406:594:3:0::48",
+      "kavlan-9": "2001:660:4406:595:3:0::48"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::48",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.72",
-      "ip6": "2001:660:4406:500:3::48",
+      "ip6": "2001:660:4406:500:3:0::48",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:7e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
index 89497412eed..42e55af2af8 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-73.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::49",
-      "kavlan-11": "2001:660:4406:1a0:503::49",
-      "kavlan-12": "2001:660:4406:2a0:503::49",
-      "kavlan-13": "2001:660:4406:4a0:503::49",
-      "kavlan-14": "2001:660:4406:5a0:503::49",
-      "kavlan-16": "2001:660:4406:7a0:503::49",
-      "kavlan-18": "2001:660:4406:8a0:503::49",
-      "kavlan-2": "2001:660:4406:581:3::49",
-      "kavlan-20": "2001:660:4406:3a0:503::49",
-      "kavlan-21": "2001:660:4406:6a0:503::49",
-      "kavlan-3": "2001:660:4406:582:3::49",
-      "kavlan-4": "2001:660:4406:590:3::49",
-      "kavlan-5": "2001:660:4406:591:3::49",
-      "kavlan-6": "2001:660:4406:592:3::49",
-      "kavlan-7": "2001:660:4406:593:3::49",
-      "kavlan-8": "2001:660:4406:594:3::49",
-      "kavlan-9": "2001:660:4406:595:3::49"
+      "kavlan-1": "2001:660:4406:580:3:0::49",
+      "kavlan-11": "2001:660:4406:1a0:503:0::49",
+      "kavlan-12": "2001:660:4406:2a0:503:0::49",
+      "kavlan-13": "2001:660:4406:4a0:503:0::49",
+      "kavlan-14": "2001:660:4406:5a0:503:0::49",
+      "kavlan-16": "2001:660:4406:7a0:503:0::49",
+      "kavlan-18": "2001:660:4406:8a0:503:0::49",
+      "kavlan-2": "2001:660:4406:581:3:0::49",
+      "kavlan-20": "2001:660:4406:3a0:503:0::49",
+      "kavlan-21": "2001:660:4406:6a0:503:0::49",
+      "kavlan-3": "2001:660:4406:582:3:0::49",
+      "kavlan-4": "2001:660:4406:590:3:0::49",
+      "kavlan-5": "2001:660:4406:591:3:0::49",
+      "kavlan-6": "2001:660:4406:592:3:0::49",
+      "kavlan-7": "2001:660:4406:593:3:0::49",
+      "kavlan-8": "2001:660:4406:594:3:0::49",
+      "kavlan-9": "2001:660:4406:595:3:0::49"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::49",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.73",
-      "ip6": "2001:660:4406:500:3::49",
+      "ip6": "2001:660:4406:500:3:0::49",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:6a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
index 1365e2c8ffb..c502cb80219 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-74.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::4a",
-      "kavlan-11": "2001:660:4406:1a0:503::4a",
-      "kavlan-12": "2001:660:4406:2a0:503::4a",
-      "kavlan-13": "2001:660:4406:4a0:503::4a",
-      "kavlan-14": "2001:660:4406:5a0:503::4a",
-      "kavlan-16": "2001:660:4406:7a0:503::4a",
-      "kavlan-18": "2001:660:4406:8a0:503::4a",
-      "kavlan-2": "2001:660:4406:581:3::4a",
-      "kavlan-20": "2001:660:4406:3a0:503::4a",
-      "kavlan-21": "2001:660:4406:6a0:503::4a",
-      "kavlan-3": "2001:660:4406:582:3::4a",
-      "kavlan-4": "2001:660:4406:590:3::4a",
-      "kavlan-5": "2001:660:4406:591:3::4a",
-      "kavlan-6": "2001:660:4406:592:3::4a",
-      "kavlan-7": "2001:660:4406:593:3::4a",
-      "kavlan-8": "2001:660:4406:594:3::4a",
-      "kavlan-9": "2001:660:4406:595:3::4a"
+      "kavlan-1": "2001:660:4406:580:3:0::4a",
+      "kavlan-11": "2001:660:4406:1a0:503:0::4a",
+      "kavlan-12": "2001:660:4406:2a0:503:0::4a",
+      "kavlan-13": "2001:660:4406:4a0:503:0::4a",
+      "kavlan-14": "2001:660:4406:5a0:503:0::4a",
+      "kavlan-16": "2001:660:4406:7a0:503:0::4a",
+      "kavlan-18": "2001:660:4406:8a0:503:0::4a",
+      "kavlan-2": "2001:660:4406:581:3:0::4a",
+      "kavlan-20": "2001:660:4406:3a0:503:0::4a",
+      "kavlan-21": "2001:660:4406:6a0:503:0::4a",
+      "kavlan-3": "2001:660:4406:582:3:0::4a",
+      "kavlan-4": "2001:660:4406:590:3:0::4a",
+      "kavlan-5": "2001:660:4406:591:3:0::4a",
+      "kavlan-6": "2001:660:4406:592:3:0::4a",
+      "kavlan-7": "2001:660:4406:593:3:0::4a",
+      "kavlan-8": "2001:660:4406:594:3:0::4a",
+      "kavlan-9": "2001:660:4406:595:3:0::4a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::4a",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.74",
-      "ip6": "2001:660:4406:500:3::4a",
+      "ip6": "2001:660:4406:500:3:0::4a",
       "kavlan": true,
       "mac": "98:03:9b:b0:c0:a6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
index 1ad8d314735..84e1cab88c5 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-75.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::4b",
-      "kavlan-11": "2001:660:4406:1a0:503::4b",
-      "kavlan-12": "2001:660:4406:2a0:503::4b",
-      "kavlan-13": "2001:660:4406:4a0:503::4b",
-      "kavlan-14": "2001:660:4406:5a0:503::4b",
-      "kavlan-16": "2001:660:4406:7a0:503::4b",
-      "kavlan-18": "2001:660:4406:8a0:503::4b",
-      "kavlan-2": "2001:660:4406:581:3::4b",
-      "kavlan-20": "2001:660:4406:3a0:503::4b",
-      "kavlan-21": "2001:660:4406:6a0:503::4b",
-      "kavlan-3": "2001:660:4406:582:3::4b",
-      "kavlan-4": "2001:660:4406:590:3::4b",
-      "kavlan-5": "2001:660:4406:591:3::4b",
-      "kavlan-6": "2001:660:4406:592:3::4b",
-      "kavlan-7": "2001:660:4406:593:3::4b",
-      "kavlan-8": "2001:660:4406:594:3::4b",
-      "kavlan-9": "2001:660:4406:595:3::4b"
+      "kavlan-1": "2001:660:4406:580:3:0::4b",
+      "kavlan-11": "2001:660:4406:1a0:503:0::4b",
+      "kavlan-12": "2001:660:4406:2a0:503:0::4b",
+      "kavlan-13": "2001:660:4406:4a0:503:0::4b",
+      "kavlan-14": "2001:660:4406:5a0:503:0::4b",
+      "kavlan-16": "2001:660:4406:7a0:503:0::4b",
+      "kavlan-18": "2001:660:4406:8a0:503:0::4b",
+      "kavlan-2": "2001:660:4406:581:3:0::4b",
+      "kavlan-20": "2001:660:4406:3a0:503:0::4b",
+      "kavlan-21": "2001:660:4406:6a0:503:0::4b",
+      "kavlan-3": "2001:660:4406:582:3:0::4b",
+      "kavlan-4": "2001:660:4406:590:3:0::4b",
+      "kavlan-5": "2001:660:4406:591:3:0::4b",
+      "kavlan-6": "2001:660:4406:592:3:0::4b",
+      "kavlan-7": "2001:660:4406:593:3:0::4b",
+      "kavlan-8": "2001:660:4406:594:3:0::4b",
+      "kavlan-9": "2001:660:4406:595:3:0::4b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::4b",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.75",
-      "ip6": "2001:660:4406:500:3::4b",
+      "ip6": "2001:660:4406:500:3:0::4b",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:26",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
index 0677a07777a..2b4a25fd442 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-76.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::4c",
-      "kavlan-11": "2001:660:4406:1a0:503::4c",
-      "kavlan-12": "2001:660:4406:2a0:503::4c",
-      "kavlan-13": "2001:660:4406:4a0:503::4c",
-      "kavlan-14": "2001:660:4406:5a0:503::4c",
-      "kavlan-16": "2001:660:4406:7a0:503::4c",
-      "kavlan-18": "2001:660:4406:8a0:503::4c",
-      "kavlan-2": "2001:660:4406:581:3::4c",
-      "kavlan-20": "2001:660:4406:3a0:503::4c",
-      "kavlan-21": "2001:660:4406:6a0:503::4c",
-      "kavlan-3": "2001:660:4406:582:3::4c",
-      "kavlan-4": "2001:660:4406:590:3::4c",
-      "kavlan-5": "2001:660:4406:591:3::4c",
-      "kavlan-6": "2001:660:4406:592:3::4c",
-      "kavlan-7": "2001:660:4406:593:3::4c",
-      "kavlan-8": "2001:660:4406:594:3::4c",
-      "kavlan-9": "2001:660:4406:595:3::4c"
+      "kavlan-1": "2001:660:4406:580:3:0::4c",
+      "kavlan-11": "2001:660:4406:1a0:503:0::4c",
+      "kavlan-12": "2001:660:4406:2a0:503:0::4c",
+      "kavlan-13": "2001:660:4406:4a0:503:0::4c",
+      "kavlan-14": "2001:660:4406:5a0:503:0::4c",
+      "kavlan-16": "2001:660:4406:7a0:503:0::4c",
+      "kavlan-18": "2001:660:4406:8a0:503:0::4c",
+      "kavlan-2": "2001:660:4406:581:3:0::4c",
+      "kavlan-20": "2001:660:4406:3a0:503:0::4c",
+      "kavlan-21": "2001:660:4406:6a0:503:0::4c",
+      "kavlan-3": "2001:660:4406:582:3:0::4c",
+      "kavlan-4": "2001:660:4406:590:3:0::4c",
+      "kavlan-5": "2001:660:4406:591:3:0::4c",
+      "kavlan-6": "2001:660:4406:592:3:0::4c",
+      "kavlan-7": "2001:660:4406:593:3:0::4c",
+      "kavlan-8": "2001:660:4406:594:3:0::4c",
+      "kavlan-9": "2001:660:4406:595:3:0::4c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::4c",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.76",
-      "ip6": "2001:660:4406:500:3::4c",
+      "ip6": "2001:660:4406:500:3:0::4c",
       "kavlan": true,
       "mac": "98:03:9b:b0:63:82",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
index 40f1412a4db..0e2a5215869 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-77.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::4d",
-      "kavlan-11": "2001:660:4406:1a0:503::4d",
-      "kavlan-12": "2001:660:4406:2a0:503::4d",
-      "kavlan-13": "2001:660:4406:4a0:503::4d",
-      "kavlan-14": "2001:660:4406:5a0:503::4d",
-      "kavlan-16": "2001:660:4406:7a0:503::4d",
-      "kavlan-18": "2001:660:4406:8a0:503::4d",
-      "kavlan-2": "2001:660:4406:581:3::4d",
-      "kavlan-20": "2001:660:4406:3a0:503::4d",
-      "kavlan-21": "2001:660:4406:6a0:503::4d",
-      "kavlan-3": "2001:660:4406:582:3::4d",
-      "kavlan-4": "2001:660:4406:590:3::4d",
-      "kavlan-5": "2001:660:4406:591:3::4d",
-      "kavlan-6": "2001:660:4406:592:3::4d",
-      "kavlan-7": "2001:660:4406:593:3::4d",
-      "kavlan-8": "2001:660:4406:594:3::4d",
-      "kavlan-9": "2001:660:4406:595:3::4d"
+      "kavlan-1": "2001:660:4406:580:3:0::4d",
+      "kavlan-11": "2001:660:4406:1a0:503:0::4d",
+      "kavlan-12": "2001:660:4406:2a0:503:0::4d",
+      "kavlan-13": "2001:660:4406:4a0:503:0::4d",
+      "kavlan-14": "2001:660:4406:5a0:503:0::4d",
+      "kavlan-16": "2001:660:4406:7a0:503:0::4d",
+      "kavlan-18": "2001:660:4406:8a0:503:0::4d",
+      "kavlan-2": "2001:660:4406:581:3:0::4d",
+      "kavlan-20": "2001:660:4406:3a0:503:0::4d",
+      "kavlan-21": "2001:660:4406:6a0:503:0::4d",
+      "kavlan-3": "2001:660:4406:582:3:0::4d",
+      "kavlan-4": "2001:660:4406:590:3:0::4d",
+      "kavlan-5": "2001:660:4406:591:3:0::4d",
+      "kavlan-6": "2001:660:4406:592:3:0::4d",
+      "kavlan-7": "2001:660:4406:593:3:0::4d",
+      "kavlan-8": "2001:660:4406:594:3:0::4d",
+      "kavlan-9": "2001:660:4406:595:3:0::4d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::4d",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.77",
-      "ip6": "2001:660:4406:500:3::4d",
+      "ip6": "2001:660:4406:500:3:0::4d",
       "kavlan": true,
       "mac": "98:03:9b:b0:a9:66",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
index f03ec749c8a..27de7a2dcc5 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-78.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::4e",
-      "kavlan-11": "2001:660:4406:1a0:503::4e",
-      "kavlan-12": "2001:660:4406:2a0:503::4e",
-      "kavlan-13": "2001:660:4406:4a0:503::4e",
-      "kavlan-14": "2001:660:4406:5a0:503::4e",
-      "kavlan-16": "2001:660:4406:7a0:503::4e",
-      "kavlan-18": "2001:660:4406:8a0:503::4e",
-      "kavlan-2": "2001:660:4406:581:3::4e",
-      "kavlan-20": "2001:660:4406:3a0:503::4e",
-      "kavlan-21": "2001:660:4406:6a0:503::4e",
-      "kavlan-3": "2001:660:4406:582:3::4e",
-      "kavlan-4": "2001:660:4406:590:3::4e",
-      "kavlan-5": "2001:660:4406:591:3::4e",
-      "kavlan-6": "2001:660:4406:592:3::4e",
-      "kavlan-7": "2001:660:4406:593:3::4e",
-      "kavlan-8": "2001:660:4406:594:3::4e",
-      "kavlan-9": "2001:660:4406:595:3::4e"
+      "kavlan-1": "2001:660:4406:580:3:0::4e",
+      "kavlan-11": "2001:660:4406:1a0:503:0::4e",
+      "kavlan-12": "2001:660:4406:2a0:503:0::4e",
+      "kavlan-13": "2001:660:4406:4a0:503:0::4e",
+      "kavlan-14": "2001:660:4406:5a0:503:0::4e",
+      "kavlan-16": "2001:660:4406:7a0:503:0::4e",
+      "kavlan-18": "2001:660:4406:8a0:503:0::4e",
+      "kavlan-2": "2001:660:4406:581:3:0::4e",
+      "kavlan-20": "2001:660:4406:3a0:503:0::4e",
+      "kavlan-21": "2001:660:4406:6a0:503:0::4e",
+      "kavlan-3": "2001:660:4406:582:3:0::4e",
+      "kavlan-4": "2001:660:4406:590:3:0::4e",
+      "kavlan-5": "2001:660:4406:591:3:0::4e",
+      "kavlan-6": "2001:660:4406:592:3:0::4e",
+      "kavlan-7": "2001:660:4406:593:3:0::4e",
+      "kavlan-8": "2001:660:4406:594:3:0::4e",
+      "kavlan-9": "2001:660:4406:595:3:0::4e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::4e",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.78",
-      "ip6": "2001:660:4406:500:3::4e",
+      "ip6": "2001:660:4406:500:3:0::4e",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:4e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
index 6dd3cd03526..372baf17f15 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-79.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::4f",
-      "kavlan-11": "2001:660:4406:1a0:503::4f",
-      "kavlan-12": "2001:660:4406:2a0:503::4f",
-      "kavlan-13": "2001:660:4406:4a0:503::4f",
-      "kavlan-14": "2001:660:4406:5a0:503::4f",
-      "kavlan-16": "2001:660:4406:7a0:503::4f",
-      "kavlan-18": "2001:660:4406:8a0:503::4f",
-      "kavlan-2": "2001:660:4406:581:3::4f",
-      "kavlan-20": "2001:660:4406:3a0:503::4f",
-      "kavlan-21": "2001:660:4406:6a0:503::4f",
-      "kavlan-3": "2001:660:4406:582:3::4f",
-      "kavlan-4": "2001:660:4406:590:3::4f",
-      "kavlan-5": "2001:660:4406:591:3::4f",
-      "kavlan-6": "2001:660:4406:592:3::4f",
-      "kavlan-7": "2001:660:4406:593:3::4f",
-      "kavlan-8": "2001:660:4406:594:3::4f",
-      "kavlan-9": "2001:660:4406:595:3::4f"
+      "kavlan-1": "2001:660:4406:580:3:0::4f",
+      "kavlan-11": "2001:660:4406:1a0:503:0::4f",
+      "kavlan-12": "2001:660:4406:2a0:503:0::4f",
+      "kavlan-13": "2001:660:4406:4a0:503:0::4f",
+      "kavlan-14": "2001:660:4406:5a0:503:0::4f",
+      "kavlan-16": "2001:660:4406:7a0:503:0::4f",
+      "kavlan-18": "2001:660:4406:8a0:503:0::4f",
+      "kavlan-2": "2001:660:4406:581:3:0::4f",
+      "kavlan-20": "2001:660:4406:3a0:503:0::4f",
+      "kavlan-21": "2001:660:4406:6a0:503:0::4f",
+      "kavlan-3": "2001:660:4406:582:3:0::4f",
+      "kavlan-4": "2001:660:4406:590:3:0::4f",
+      "kavlan-5": "2001:660:4406:591:3:0::4f",
+      "kavlan-6": "2001:660:4406:592:3:0::4f",
+      "kavlan-7": "2001:660:4406:593:3:0::4f",
+      "kavlan-8": "2001:660:4406:594:3:0::4f",
+      "kavlan-9": "2001:660:4406:595:3:0::4f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::4f",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.79",
-      "ip6": "2001:660:4406:500:3::4f",
+      "ip6": "2001:660:4406:500:3:0::4f",
       "kavlan": true,
       "mac": "98:03:9b:b0:be:de",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
index 972771d273f..5eb8a05593b 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-8.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::8",
-      "kavlan-11": "2001:660:4406:1a0:503::8",
-      "kavlan-12": "2001:660:4406:2a0:503::8",
-      "kavlan-13": "2001:660:4406:4a0:503::8",
-      "kavlan-14": "2001:660:4406:5a0:503::8",
-      "kavlan-16": "2001:660:4406:7a0:503::8",
-      "kavlan-18": "2001:660:4406:8a0:503::8",
-      "kavlan-2": "2001:660:4406:581:3::8",
-      "kavlan-20": "2001:660:4406:3a0:503::8",
-      "kavlan-21": "2001:660:4406:6a0:503::8",
-      "kavlan-3": "2001:660:4406:582:3::8",
-      "kavlan-4": "2001:660:4406:590:3::8",
-      "kavlan-5": "2001:660:4406:591:3::8",
-      "kavlan-6": "2001:660:4406:592:3::8",
-      "kavlan-7": "2001:660:4406:593:3::8",
-      "kavlan-8": "2001:660:4406:594:3::8",
-      "kavlan-9": "2001:660:4406:595:3::8"
+      "kavlan-1": "2001:660:4406:580:3:0::8",
+      "kavlan-11": "2001:660:4406:1a0:503:0::8",
+      "kavlan-12": "2001:660:4406:2a0:503:0::8",
+      "kavlan-13": "2001:660:4406:4a0:503:0::8",
+      "kavlan-14": "2001:660:4406:5a0:503:0::8",
+      "kavlan-16": "2001:660:4406:7a0:503:0::8",
+      "kavlan-18": "2001:660:4406:8a0:503:0::8",
+      "kavlan-2": "2001:660:4406:581:3:0::8",
+      "kavlan-20": "2001:660:4406:3a0:503:0::8",
+      "kavlan-21": "2001:660:4406:6a0:503:0::8",
+      "kavlan-3": "2001:660:4406:582:3:0::8",
+      "kavlan-4": "2001:660:4406:590:3:0::8",
+      "kavlan-5": "2001:660:4406:591:3:0::8",
+      "kavlan-6": "2001:660:4406:592:3:0::8",
+      "kavlan-7": "2001:660:4406:593:3:0::8",
+      "kavlan-8": "2001:660:4406:594:3:0::8",
+      "kavlan-9": "2001:660:4406:595:3:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::8",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.8",
-      "ip6": "2001:660:4406:500:3::8",
+      "ip6": "2001:660:4406:500:3:0::8",
       "kavlan": true,
       "mac": "98:03:9b:b0:c1:0e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
index 609082d22ef..70478f4acec 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-80.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::50",
-      "kavlan-11": "2001:660:4406:1a0:503::50",
-      "kavlan-12": "2001:660:4406:2a0:503::50",
-      "kavlan-13": "2001:660:4406:4a0:503::50",
-      "kavlan-14": "2001:660:4406:5a0:503::50",
-      "kavlan-16": "2001:660:4406:7a0:503::50",
-      "kavlan-18": "2001:660:4406:8a0:503::50",
-      "kavlan-2": "2001:660:4406:581:3::50",
-      "kavlan-20": "2001:660:4406:3a0:503::50",
-      "kavlan-21": "2001:660:4406:6a0:503::50",
-      "kavlan-3": "2001:660:4406:582:3::50",
-      "kavlan-4": "2001:660:4406:590:3::50",
-      "kavlan-5": "2001:660:4406:591:3::50",
-      "kavlan-6": "2001:660:4406:592:3::50",
-      "kavlan-7": "2001:660:4406:593:3::50",
-      "kavlan-8": "2001:660:4406:594:3::50",
-      "kavlan-9": "2001:660:4406:595:3::50"
+      "kavlan-1": "2001:660:4406:580:3:0::50",
+      "kavlan-11": "2001:660:4406:1a0:503:0::50",
+      "kavlan-12": "2001:660:4406:2a0:503:0::50",
+      "kavlan-13": "2001:660:4406:4a0:503:0::50",
+      "kavlan-14": "2001:660:4406:5a0:503:0::50",
+      "kavlan-16": "2001:660:4406:7a0:503:0::50",
+      "kavlan-18": "2001:660:4406:8a0:503:0::50",
+      "kavlan-2": "2001:660:4406:581:3:0::50",
+      "kavlan-20": "2001:660:4406:3a0:503:0::50",
+      "kavlan-21": "2001:660:4406:6a0:503:0::50",
+      "kavlan-3": "2001:660:4406:582:3:0::50",
+      "kavlan-4": "2001:660:4406:590:3:0::50",
+      "kavlan-5": "2001:660:4406:591:3:0::50",
+      "kavlan-6": "2001:660:4406:592:3:0::50",
+      "kavlan-7": "2001:660:4406:593:3:0::50",
+      "kavlan-8": "2001:660:4406:594:3:0::50",
+      "kavlan-9": "2001:660:4406:595:3:0::50"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::50",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.80",
-      "ip6": "2001:660:4406:500:3::50",
+      "ip6": "2001:660:4406:500:3:0::50",
       "kavlan": true,
       "mac": "98:03:9b:b0:bf:86",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
index 9778aee7b2d..367a8ef3138 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-81.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::51",
-      "kavlan-11": "2001:660:4406:1a0:503::51",
-      "kavlan-12": "2001:660:4406:2a0:503::51",
-      "kavlan-13": "2001:660:4406:4a0:503::51",
-      "kavlan-14": "2001:660:4406:5a0:503::51",
-      "kavlan-16": "2001:660:4406:7a0:503::51",
-      "kavlan-18": "2001:660:4406:8a0:503::51",
-      "kavlan-2": "2001:660:4406:581:3::51",
-      "kavlan-20": "2001:660:4406:3a0:503::51",
-      "kavlan-21": "2001:660:4406:6a0:503::51",
-      "kavlan-3": "2001:660:4406:582:3::51",
-      "kavlan-4": "2001:660:4406:590:3::51",
-      "kavlan-5": "2001:660:4406:591:3::51",
-      "kavlan-6": "2001:660:4406:592:3::51",
-      "kavlan-7": "2001:660:4406:593:3::51",
-      "kavlan-8": "2001:660:4406:594:3::51",
-      "kavlan-9": "2001:660:4406:595:3::51"
+      "kavlan-1": "2001:660:4406:580:3:0::51",
+      "kavlan-11": "2001:660:4406:1a0:503:0::51",
+      "kavlan-12": "2001:660:4406:2a0:503:0::51",
+      "kavlan-13": "2001:660:4406:4a0:503:0::51",
+      "kavlan-14": "2001:660:4406:5a0:503:0::51",
+      "kavlan-16": "2001:660:4406:7a0:503:0::51",
+      "kavlan-18": "2001:660:4406:8a0:503:0::51",
+      "kavlan-2": "2001:660:4406:581:3:0::51",
+      "kavlan-20": "2001:660:4406:3a0:503:0::51",
+      "kavlan-21": "2001:660:4406:6a0:503:0::51",
+      "kavlan-3": "2001:660:4406:582:3:0::51",
+      "kavlan-4": "2001:660:4406:590:3:0::51",
+      "kavlan-5": "2001:660:4406:591:3:0::51",
+      "kavlan-6": "2001:660:4406:592:3:0::51",
+      "kavlan-7": "2001:660:4406:593:3:0::51",
+      "kavlan-8": "2001:660:4406:594:3:0::51",
+      "kavlan-9": "2001:660:4406:595:3:0::51"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::51",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.81",
-      "ip6": "2001:660:4406:500:3::51",
+      "ip6": "2001:660:4406:500:3:0::51",
       "kavlan": true,
       "mac": "98:03:9b:b0:9d:4a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
index ae688ff1ddb..f1f3c2f5cdd 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-82.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::52",
-      "kavlan-11": "2001:660:4406:1a0:503::52",
-      "kavlan-12": "2001:660:4406:2a0:503::52",
-      "kavlan-13": "2001:660:4406:4a0:503::52",
-      "kavlan-14": "2001:660:4406:5a0:503::52",
-      "kavlan-16": "2001:660:4406:7a0:503::52",
-      "kavlan-18": "2001:660:4406:8a0:503::52",
-      "kavlan-2": "2001:660:4406:581:3::52",
-      "kavlan-20": "2001:660:4406:3a0:503::52",
-      "kavlan-21": "2001:660:4406:6a0:503::52",
-      "kavlan-3": "2001:660:4406:582:3::52",
-      "kavlan-4": "2001:660:4406:590:3::52",
-      "kavlan-5": "2001:660:4406:591:3::52",
-      "kavlan-6": "2001:660:4406:592:3::52",
-      "kavlan-7": "2001:660:4406:593:3::52",
-      "kavlan-8": "2001:660:4406:594:3::52",
-      "kavlan-9": "2001:660:4406:595:3::52"
+      "kavlan-1": "2001:660:4406:580:3:0::52",
+      "kavlan-11": "2001:660:4406:1a0:503:0::52",
+      "kavlan-12": "2001:660:4406:2a0:503:0::52",
+      "kavlan-13": "2001:660:4406:4a0:503:0::52",
+      "kavlan-14": "2001:660:4406:5a0:503:0::52",
+      "kavlan-16": "2001:660:4406:7a0:503:0::52",
+      "kavlan-18": "2001:660:4406:8a0:503:0::52",
+      "kavlan-2": "2001:660:4406:581:3:0::52",
+      "kavlan-20": "2001:660:4406:3a0:503:0::52",
+      "kavlan-21": "2001:660:4406:6a0:503:0::52",
+      "kavlan-3": "2001:660:4406:582:3:0::52",
+      "kavlan-4": "2001:660:4406:590:3:0::52",
+      "kavlan-5": "2001:660:4406:591:3:0::52",
+      "kavlan-6": "2001:660:4406:592:3:0::52",
+      "kavlan-7": "2001:660:4406:593:3:0::52",
+      "kavlan-8": "2001:660:4406:594:3:0::52",
+      "kavlan-9": "2001:660:4406:595:3:0::52"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::52",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.82",
-      "ip6": "2001:660:4406:500:3::52",
+      "ip6": "2001:660:4406:500:3:0::52",
       "kavlan": true,
       "mac": "98:03:9b:b0:99:6a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
index d988e69040a..f5b5cafb3c8 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-83.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::53",
-      "kavlan-11": "2001:660:4406:1a0:503::53",
-      "kavlan-12": "2001:660:4406:2a0:503::53",
-      "kavlan-13": "2001:660:4406:4a0:503::53",
-      "kavlan-14": "2001:660:4406:5a0:503::53",
-      "kavlan-16": "2001:660:4406:7a0:503::53",
-      "kavlan-18": "2001:660:4406:8a0:503::53",
-      "kavlan-2": "2001:660:4406:581:3::53",
-      "kavlan-20": "2001:660:4406:3a0:503::53",
-      "kavlan-21": "2001:660:4406:6a0:503::53",
-      "kavlan-3": "2001:660:4406:582:3::53",
-      "kavlan-4": "2001:660:4406:590:3::53",
-      "kavlan-5": "2001:660:4406:591:3::53",
-      "kavlan-6": "2001:660:4406:592:3::53",
-      "kavlan-7": "2001:660:4406:593:3::53",
-      "kavlan-8": "2001:660:4406:594:3::53",
-      "kavlan-9": "2001:660:4406:595:3::53"
+      "kavlan-1": "2001:660:4406:580:3:0::53",
+      "kavlan-11": "2001:660:4406:1a0:503:0::53",
+      "kavlan-12": "2001:660:4406:2a0:503:0::53",
+      "kavlan-13": "2001:660:4406:4a0:503:0::53",
+      "kavlan-14": "2001:660:4406:5a0:503:0::53",
+      "kavlan-16": "2001:660:4406:7a0:503:0::53",
+      "kavlan-18": "2001:660:4406:8a0:503:0::53",
+      "kavlan-2": "2001:660:4406:581:3:0::53",
+      "kavlan-20": "2001:660:4406:3a0:503:0::53",
+      "kavlan-21": "2001:660:4406:6a0:503:0::53",
+      "kavlan-3": "2001:660:4406:582:3:0::53",
+      "kavlan-4": "2001:660:4406:590:3:0::53",
+      "kavlan-5": "2001:660:4406:591:3:0::53",
+      "kavlan-6": "2001:660:4406:592:3:0::53",
+      "kavlan-7": "2001:660:4406:593:3:0::53",
+      "kavlan-8": "2001:660:4406:594:3:0::53",
+      "kavlan-9": "2001:660:4406:595:3:0::53"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::53",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.83",
-      "ip6": "2001:660:4406:500:3::53",
+      "ip6": "2001:660:4406:500:3:0::53",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:7e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
index 51537b50fa9..e53fb4146ac 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-84.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::54",
-      "kavlan-11": "2001:660:4406:1a0:503::54",
-      "kavlan-12": "2001:660:4406:2a0:503::54",
-      "kavlan-13": "2001:660:4406:4a0:503::54",
-      "kavlan-14": "2001:660:4406:5a0:503::54",
-      "kavlan-16": "2001:660:4406:7a0:503::54",
-      "kavlan-18": "2001:660:4406:8a0:503::54",
-      "kavlan-2": "2001:660:4406:581:3::54",
-      "kavlan-20": "2001:660:4406:3a0:503::54",
-      "kavlan-21": "2001:660:4406:6a0:503::54",
-      "kavlan-3": "2001:660:4406:582:3::54",
-      "kavlan-4": "2001:660:4406:590:3::54",
-      "kavlan-5": "2001:660:4406:591:3::54",
-      "kavlan-6": "2001:660:4406:592:3::54",
-      "kavlan-7": "2001:660:4406:593:3::54",
-      "kavlan-8": "2001:660:4406:594:3::54",
-      "kavlan-9": "2001:660:4406:595:3::54"
+      "kavlan-1": "2001:660:4406:580:3:0::54",
+      "kavlan-11": "2001:660:4406:1a0:503:0::54",
+      "kavlan-12": "2001:660:4406:2a0:503:0::54",
+      "kavlan-13": "2001:660:4406:4a0:503:0::54",
+      "kavlan-14": "2001:660:4406:5a0:503:0::54",
+      "kavlan-16": "2001:660:4406:7a0:503:0::54",
+      "kavlan-18": "2001:660:4406:8a0:503:0::54",
+      "kavlan-2": "2001:660:4406:581:3:0::54",
+      "kavlan-20": "2001:660:4406:3a0:503:0::54",
+      "kavlan-21": "2001:660:4406:6a0:503:0::54",
+      "kavlan-3": "2001:660:4406:582:3:0::54",
+      "kavlan-4": "2001:660:4406:590:3:0::54",
+      "kavlan-5": "2001:660:4406:591:3:0::54",
+      "kavlan-6": "2001:660:4406:592:3:0::54",
+      "kavlan-7": "2001:660:4406:593:3:0::54",
+      "kavlan-8": "2001:660:4406:594:3:0::54",
+      "kavlan-9": "2001:660:4406:595:3:0::54"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::54",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.84",
-      "ip6": "2001:660:4406:500:3::54",
+      "ip6": "2001:660:4406:500:3:0::54",
       "kavlan": true,
       "mac": "98:03:9b:b0:a9:6e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
index 7cc32748ed7..03bdb72351c 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-85.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::55",
-      "kavlan-11": "2001:660:4406:1a0:503::55",
-      "kavlan-12": "2001:660:4406:2a0:503::55",
-      "kavlan-13": "2001:660:4406:4a0:503::55",
-      "kavlan-14": "2001:660:4406:5a0:503::55",
-      "kavlan-16": "2001:660:4406:7a0:503::55",
-      "kavlan-18": "2001:660:4406:8a0:503::55",
-      "kavlan-2": "2001:660:4406:581:3::55",
-      "kavlan-20": "2001:660:4406:3a0:503::55",
-      "kavlan-21": "2001:660:4406:6a0:503::55",
-      "kavlan-3": "2001:660:4406:582:3::55",
-      "kavlan-4": "2001:660:4406:590:3::55",
-      "kavlan-5": "2001:660:4406:591:3::55",
-      "kavlan-6": "2001:660:4406:592:3::55",
-      "kavlan-7": "2001:660:4406:593:3::55",
-      "kavlan-8": "2001:660:4406:594:3::55",
-      "kavlan-9": "2001:660:4406:595:3::55"
+      "kavlan-1": "2001:660:4406:580:3:0::55",
+      "kavlan-11": "2001:660:4406:1a0:503:0::55",
+      "kavlan-12": "2001:660:4406:2a0:503:0::55",
+      "kavlan-13": "2001:660:4406:4a0:503:0::55",
+      "kavlan-14": "2001:660:4406:5a0:503:0::55",
+      "kavlan-16": "2001:660:4406:7a0:503:0::55",
+      "kavlan-18": "2001:660:4406:8a0:503:0::55",
+      "kavlan-2": "2001:660:4406:581:3:0::55",
+      "kavlan-20": "2001:660:4406:3a0:503:0::55",
+      "kavlan-21": "2001:660:4406:6a0:503:0::55",
+      "kavlan-3": "2001:660:4406:582:3:0::55",
+      "kavlan-4": "2001:660:4406:590:3:0::55",
+      "kavlan-5": "2001:660:4406:591:3:0::55",
+      "kavlan-6": "2001:660:4406:592:3:0::55",
+      "kavlan-7": "2001:660:4406:593:3:0::55",
+      "kavlan-8": "2001:660:4406:594:3:0::55",
+      "kavlan-9": "2001:660:4406:595:3:0::55"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::55",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.85",
-      "ip6": "2001:660:4406:500:3::55",
+      "ip6": "2001:660:4406:500:3:0::55",
       "kavlan": true,
       "mac": "98:03:9b:b0:d0:0e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
index 2c6f356a8fb..f56cd80f41e 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-86.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::56",
-      "kavlan-11": "2001:660:4406:1a0:503::56",
-      "kavlan-12": "2001:660:4406:2a0:503::56",
-      "kavlan-13": "2001:660:4406:4a0:503::56",
-      "kavlan-14": "2001:660:4406:5a0:503::56",
-      "kavlan-16": "2001:660:4406:7a0:503::56",
-      "kavlan-18": "2001:660:4406:8a0:503::56",
-      "kavlan-2": "2001:660:4406:581:3::56",
-      "kavlan-20": "2001:660:4406:3a0:503::56",
-      "kavlan-21": "2001:660:4406:6a0:503::56",
-      "kavlan-3": "2001:660:4406:582:3::56",
-      "kavlan-4": "2001:660:4406:590:3::56",
-      "kavlan-5": "2001:660:4406:591:3::56",
-      "kavlan-6": "2001:660:4406:592:3::56",
-      "kavlan-7": "2001:660:4406:593:3::56",
-      "kavlan-8": "2001:660:4406:594:3::56",
-      "kavlan-9": "2001:660:4406:595:3::56"
+      "kavlan-1": "2001:660:4406:580:3:0::56",
+      "kavlan-11": "2001:660:4406:1a0:503:0::56",
+      "kavlan-12": "2001:660:4406:2a0:503:0::56",
+      "kavlan-13": "2001:660:4406:4a0:503:0::56",
+      "kavlan-14": "2001:660:4406:5a0:503:0::56",
+      "kavlan-16": "2001:660:4406:7a0:503:0::56",
+      "kavlan-18": "2001:660:4406:8a0:503:0::56",
+      "kavlan-2": "2001:660:4406:581:3:0::56",
+      "kavlan-20": "2001:660:4406:3a0:503:0::56",
+      "kavlan-21": "2001:660:4406:6a0:503:0::56",
+      "kavlan-3": "2001:660:4406:582:3:0::56",
+      "kavlan-4": "2001:660:4406:590:3:0::56",
+      "kavlan-5": "2001:660:4406:591:3:0::56",
+      "kavlan-6": "2001:660:4406:592:3:0::56",
+      "kavlan-7": "2001:660:4406:593:3:0::56",
+      "kavlan-8": "2001:660:4406:594:3:0::56",
+      "kavlan-9": "2001:660:4406:595:3:0::56"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::56",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.86",
-      "ip6": "2001:660:4406:500:3::56",
+      "ip6": "2001:660:4406:500:3:0::56",
       "kavlan": true,
       "mac": "98:03:9b:b0:cf:e6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
index 3337a5252e8..de4e172b5aa 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-87.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::57",
-      "kavlan-11": "2001:660:4406:1a0:503::57",
-      "kavlan-12": "2001:660:4406:2a0:503::57",
-      "kavlan-13": "2001:660:4406:4a0:503::57",
-      "kavlan-14": "2001:660:4406:5a0:503::57",
-      "kavlan-16": "2001:660:4406:7a0:503::57",
-      "kavlan-18": "2001:660:4406:8a0:503::57",
-      "kavlan-2": "2001:660:4406:581:3::57",
-      "kavlan-20": "2001:660:4406:3a0:503::57",
-      "kavlan-21": "2001:660:4406:6a0:503::57",
-      "kavlan-3": "2001:660:4406:582:3::57",
-      "kavlan-4": "2001:660:4406:590:3::57",
-      "kavlan-5": "2001:660:4406:591:3::57",
-      "kavlan-6": "2001:660:4406:592:3::57",
-      "kavlan-7": "2001:660:4406:593:3::57",
-      "kavlan-8": "2001:660:4406:594:3::57",
-      "kavlan-9": "2001:660:4406:595:3::57"
+      "kavlan-1": "2001:660:4406:580:3:0::57",
+      "kavlan-11": "2001:660:4406:1a0:503:0::57",
+      "kavlan-12": "2001:660:4406:2a0:503:0::57",
+      "kavlan-13": "2001:660:4406:4a0:503:0::57",
+      "kavlan-14": "2001:660:4406:5a0:503:0::57",
+      "kavlan-16": "2001:660:4406:7a0:503:0::57",
+      "kavlan-18": "2001:660:4406:8a0:503:0::57",
+      "kavlan-2": "2001:660:4406:581:3:0::57",
+      "kavlan-20": "2001:660:4406:3a0:503:0::57",
+      "kavlan-21": "2001:660:4406:6a0:503:0::57",
+      "kavlan-3": "2001:660:4406:582:3:0::57",
+      "kavlan-4": "2001:660:4406:590:3:0::57",
+      "kavlan-5": "2001:660:4406:591:3:0::57",
+      "kavlan-6": "2001:660:4406:592:3:0::57",
+      "kavlan-7": "2001:660:4406:593:3:0::57",
+      "kavlan-8": "2001:660:4406:594:3:0::57",
+      "kavlan-9": "2001:660:4406:595:3:0::57"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::57",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.87",
-      "ip6": "2001:660:4406:500:3::57",
+      "ip6": "2001:660:4406:500:3:0::57",
       "kavlan": true,
       "mac": "98:03:9b:b0:c6:06",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
index d6ef6f8a2d2..21da266e599 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-88.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::58",
-      "kavlan-11": "2001:660:4406:1a0:503::58",
-      "kavlan-12": "2001:660:4406:2a0:503::58",
-      "kavlan-13": "2001:660:4406:4a0:503::58",
-      "kavlan-14": "2001:660:4406:5a0:503::58",
-      "kavlan-16": "2001:660:4406:7a0:503::58",
-      "kavlan-18": "2001:660:4406:8a0:503::58",
-      "kavlan-2": "2001:660:4406:581:3::58",
-      "kavlan-20": "2001:660:4406:3a0:503::58",
-      "kavlan-21": "2001:660:4406:6a0:503::58",
-      "kavlan-3": "2001:660:4406:582:3::58",
-      "kavlan-4": "2001:660:4406:590:3::58",
-      "kavlan-5": "2001:660:4406:591:3::58",
-      "kavlan-6": "2001:660:4406:592:3::58",
-      "kavlan-7": "2001:660:4406:593:3::58",
-      "kavlan-8": "2001:660:4406:594:3::58",
-      "kavlan-9": "2001:660:4406:595:3::58"
+      "kavlan-1": "2001:660:4406:580:3:0::58",
+      "kavlan-11": "2001:660:4406:1a0:503:0::58",
+      "kavlan-12": "2001:660:4406:2a0:503:0::58",
+      "kavlan-13": "2001:660:4406:4a0:503:0::58",
+      "kavlan-14": "2001:660:4406:5a0:503:0::58",
+      "kavlan-16": "2001:660:4406:7a0:503:0::58",
+      "kavlan-18": "2001:660:4406:8a0:503:0::58",
+      "kavlan-2": "2001:660:4406:581:3:0::58",
+      "kavlan-20": "2001:660:4406:3a0:503:0::58",
+      "kavlan-21": "2001:660:4406:6a0:503:0::58",
+      "kavlan-3": "2001:660:4406:582:3:0::58",
+      "kavlan-4": "2001:660:4406:590:3:0::58",
+      "kavlan-5": "2001:660:4406:591:3:0::58",
+      "kavlan-6": "2001:660:4406:592:3:0::58",
+      "kavlan-7": "2001:660:4406:593:3:0::58",
+      "kavlan-8": "2001:660:4406:594:3:0::58",
+      "kavlan-9": "2001:660:4406:595:3:0::58"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::58",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.88",
-      "ip6": "2001:660:4406:500:3::58",
+      "ip6": "2001:660:4406:500:3:0::58",
       "kavlan": true,
       "mac": "98:03:9b:b0:ba:de",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
index a603753d4e5..e3be8513707 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-89.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::59",
-      "kavlan-11": "2001:660:4406:1a0:503::59",
-      "kavlan-12": "2001:660:4406:2a0:503::59",
-      "kavlan-13": "2001:660:4406:4a0:503::59",
-      "kavlan-14": "2001:660:4406:5a0:503::59",
-      "kavlan-16": "2001:660:4406:7a0:503::59",
-      "kavlan-18": "2001:660:4406:8a0:503::59",
-      "kavlan-2": "2001:660:4406:581:3::59",
-      "kavlan-20": "2001:660:4406:3a0:503::59",
-      "kavlan-21": "2001:660:4406:6a0:503::59",
-      "kavlan-3": "2001:660:4406:582:3::59",
-      "kavlan-4": "2001:660:4406:590:3::59",
-      "kavlan-5": "2001:660:4406:591:3::59",
-      "kavlan-6": "2001:660:4406:592:3::59",
-      "kavlan-7": "2001:660:4406:593:3::59",
-      "kavlan-8": "2001:660:4406:594:3::59",
-      "kavlan-9": "2001:660:4406:595:3::59"
+      "kavlan-1": "2001:660:4406:580:3:0::59",
+      "kavlan-11": "2001:660:4406:1a0:503:0::59",
+      "kavlan-12": "2001:660:4406:2a0:503:0::59",
+      "kavlan-13": "2001:660:4406:4a0:503:0::59",
+      "kavlan-14": "2001:660:4406:5a0:503:0::59",
+      "kavlan-16": "2001:660:4406:7a0:503:0::59",
+      "kavlan-18": "2001:660:4406:8a0:503:0::59",
+      "kavlan-2": "2001:660:4406:581:3:0::59",
+      "kavlan-20": "2001:660:4406:3a0:503:0::59",
+      "kavlan-21": "2001:660:4406:6a0:503:0::59",
+      "kavlan-3": "2001:660:4406:582:3:0::59",
+      "kavlan-4": "2001:660:4406:590:3:0::59",
+      "kavlan-5": "2001:660:4406:591:3:0::59",
+      "kavlan-6": "2001:660:4406:592:3:0::59",
+      "kavlan-7": "2001:660:4406:593:3:0::59",
+      "kavlan-8": "2001:660:4406:594:3:0::59",
+      "kavlan-9": "2001:660:4406:595:3:0::59"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::59",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.89",
-      "ip6": "2001:660:4406:500:3::59",
+      "ip6": "2001:660:4406:500:3:0::59",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:82",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
index dcb5cc74f72..8fb19910925 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-9.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::9",
-      "kavlan-11": "2001:660:4406:1a0:503::9",
-      "kavlan-12": "2001:660:4406:2a0:503::9",
-      "kavlan-13": "2001:660:4406:4a0:503::9",
-      "kavlan-14": "2001:660:4406:5a0:503::9",
-      "kavlan-16": "2001:660:4406:7a0:503::9",
-      "kavlan-18": "2001:660:4406:8a0:503::9",
-      "kavlan-2": "2001:660:4406:581:3::9",
-      "kavlan-20": "2001:660:4406:3a0:503::9",
-      "kavlan-21": "2001:660:4406:6a0:503::9",
-      "kavlan-3": "2001:660:4406:582:3::9",
-      "kavlan-4": "2001:660:4406:590:3::9",
-      "kavlan-5": "2001:660:4406:591:3::9",
-      "kavlan-6": "2001:660:4406:592:3::9",
-      "kavlan-7": "2001:660:4406:593:3::9",
-      "kavlan-8": "2001:660:4406:594:3::9",
-      "kavlan-9": "2001:660:4406:595:3::9"
+      "kavlan-1": "2001:660:4406:580:3:0::9",
+      "kavlan-11": "2001:660:4406:1a0:503:0::9",
+      "kavlan-12": "2001:660:4406:2a0:503:0::9",
+      "kavlan-13": "2001:660:4406:4a0:503:0::9",
+      "kavlan-14": "2001:660:4406:5a0:503:0::9",
+      "kavlan-16": "2001:660:4406:7a0:503:0::9",
+      "kavlan-18": "2001:660:4406:8a0:503:0::9",
+      "kavlan-2": "2001:660:4406:581:3:0::9",
+      "kavlan-20": "2001:660:4406:3a0:503:0::9",
+      "kavlan-21": "2001:660:4406:6a0:503:0::9",
+      "kavlan-3": "2001:660:4406:582:3:0::9",
+      "kavlan-4": "2001:660:4406:590:3:0::9",
+      "kavlan-5": "2001:660:4406:591:3:0::9",
+      "kavlan-6": "2001:660:4406:592:3:0::9",
+      "kavlan-7": "2001:660:4406:593:3:0::9",
+      "kavlan-8": "2001:660:4406:594:3:0::9",
+      "kavlan-9": "2001:660:4406:595:3:0::9"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::9",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.9",
-      "ip6": "2001:660:4406:500:3::9",
+      "ip6": "2001:660:4406:500:3:0::9",
       "kavlan": true,
       "mac": "98:03:9b:b0:98:12",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
index 19ccc5c8368..6fd819173b3 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-90.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::5a",
-      "kavlan-11": "2001:660:4406:1a0:503::5a",
-      "kavlan-12": "2001:660:4406:2a0:503::5a",
-      "kavlan-13": "2001:660:4406:4a0:503::5a",
-      "kavlan-14": "2001:660:4406:5a0:503::5a",
-      "kavlan-16": "2001:660:4406:7a0:503::5a",
-      "kavlan-18": "2001:660:4406:8a0:503::5a",
-      "kavlan-2": "2001:660:4406:581:3::5a",
-      "kavlan-20": "2001:660:4406:3a0:503::5a",
-      "kavlan-21": "2001:660:4406:6a0:503::5a",
-      "kavlan-3": "2001:660:4406:582:3::5a",
-      "kavlan-4": "2001:660:4406:590:3::5a",
-      "kavlan-5": "2001:660:4406:591:3::5a",
-      "kavlan-6": "2001:660:4406:592:3::5a",
-      "kavlan-7": "2001:660:4406:593:3::5a",
-      "kavlan-8": "2001:660:4406:594:3::5a",
-      "kavlan-9": "2001:660:4406:595:3::5a"
+      "kavlan-1": "2001:660:4406:580:3:0::5a",
+      "kavlan-11": "2001:660:4406:1a0:503:0::5a",
+      "kavlan-12": "2001:660:4406:2a0:503:0::5a",
+      "kavlan-13": "2001:660:4406:4a0:503:0::5a",
+      "kavlan-14": "2001:660:4406:5a0:503:0::5a",
+      "kavlan-16": "2001:660:4406:7a0:503:0::5a",
+      "kavlan-18": "2001:660:4406:8a0:503:0::5a",
+      "kavlan-2": "2001:660:4406:581:3:0::5a",
+      "kavlan-20": "2001:660:4406:3a0:503:0::5a",
+      "kavlan-21": "2001:660:4406:6a0:503:0::5a",
+      "kavlan-3": "2001:660:4406:582:3:0::5a",
+      "kavlan-4": "2001:660:4406:590:3:0::5a",
+      "kavlan-5": "2001:660:4406:591:3:0::5a",
+      "kavlan-6": "2001:660:4406:592:3:0::5a",
+      "kavlan-7": "2001:660:4406:593:3:0::5a",
+      "kavlan-8": "2001:660:4406:594:3:0::5a",
+      "kavlan-9": "2001:660:4406:595:3:0::5a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::5a",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.90",
-      "ip6": "2001:660:4406:500:3::5a",
+      "ip6": "2001:660:4406:500:3:0::5a",
       "kavlan": true,
       "mac": "98:03:9b:b0:9c:ba",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
index e319bfac3bc..70b2f0e6d4d 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-91.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::5b",
-      "kavlan-11": "2001:660:4406:1a0:503::5b",
-      "kavlan-12": "2001:660:4406:2a0:503::5b",
-      "kavlan-13": "2001:660:4406:4a0:503::5b",
-      "kavlan-14": "2001:660:4406:5a0:503::5b",
-      "kavlan-16": "2001:660:4406:7a0:503::5b",
-      "kavlan-18": "2001:660:4406:8a0:503::5b",
-      "kavlan-2": "2001:660:4406:581:3::5b",
-      "kavlan-20": "2001:660:4406:3a0:503::5b",
-      "kavlan-21": "2001:660:4406:6a0:503::5b",
-      "kavlan-3": "2001:660:4406:582:3::5b",
-      "kavlan-4": "2001:660:4406:590:3::5b",
-      "kavlan-5": "2001:660:4406:591:3::5b",
-      "kavlan-6": "2001:660:4406:592:3::5b",
-      "kavlan-7": "2001:660:4406:593:3::5b",
-      "kavlan-8": "2001:660:4406:594:3::5b",
-      "kavlan-9": "2001:660:4406:595:3::5b"
+      "kavlan-1": "2001:660:4406:580:3:0::5b",
+      "kavlan-11": "2001:660:4406:1a0:503:0::5b",
+      "kavlan-12": "2001:660:4406:2a0:503:0::5b",
+      "kavlan-13": "2001:660:4406:4a0:503:0::5b",
+      "kavlan-14": "2001:660:4406:5a0:503:0::5b",
+      "kavlan-16": "2001:660:4406:7a0:503:0::5b",
+      "kavlan-18": "2001:660:4406:8a0:503:0::5b",
+      "kavlan-2": "2001:660:4406:581:3:0::5b",
+      "kavlan-20": "2001:660:4406:3a0:503:0::5b",
+      "kavlan-21": "2001:660:4406:6a0:503:0::5b",
+      "kavlan-3": "2001:660:4406:582:3:0::5b",
+      "kavlan-4": "2001:660:4406:590:3:0::5b",
+      "kavlan-5": "2001:660:4406:591:3:0::5b",
+      "kavlan-6": "2001:660:4406:592:3:0::5b",
+      "kavlan-7": "2001:660:4406:593:3:0::5b",
+      "kavlan-8": "2001:660:4406:594:3:0::5b",
+      "kavlan-9": "2001:660:4406:595:3:0::5b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::5b",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.91",
-      "ip6": "2001:660:4406:500:3::5b",
+      "ip6": "2001:660:4406:500:3:0::5b",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:42",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
index 57176becf98..2d386890912 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-92.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::5c",
-      "kavlan-11": "2001:660:4406:1a0:503::5c",
-      "kavlan-12": "2001:660:4406:2a0:503::5c",
-      "kavlan-13": "2001:660:4406:4a0:503::5c",
-      "kavlan-14": "2001:660:4406:5a0:503::5c",
-      "kavlan-16": "2001:660:4406:7a0:503::5c",
-      "kavlan-18": "2001:660:4406:8a0:503::5c",
-      "kavlan-2": "2001:660:4406:581:3::5c",
-      "kavlan-20": "2001:660:4406:3a0:503::5c",
-      "kavlan-21": "2001:660:4406:6a0:503::5c",
-      "kavlan-3": "2001:660:4406:582:3::5c",
-      "kavlan-4": "2001:660:4406:590:3::5c",
-      "kavlan-5": "2001:660:4406:591:3::5c",
-      "kavlan-6": "2001:660:4406:592:3::5c",
-      "kavlan-7": "2001:660:4406:593:3::5c",
-      "kavlan-8": "2001:660:4406:594:3::5c",
-      "kavlan-9": "2001:660:4406:595:3::5c"
+      "kavlan-1": "2001:660:4406:580:3:0::5c",
+      "kavlan-11": "2001:660:4406:1a0:503:0::5c",
+      "kavlan-12": "2001:660:4406:2a0:503:0::5c",
+      "kavlan-13": "2001:660:4406:4a0:503:0::5c",
+      "kavlan-14": "2001:660:4406:5a0:503:0::5c",
+      "kavlan-16": "2001:660:4406:7a0:503:0::5c",
+      "kavlan-18": "2001:660:4406:8a0:503:0::5c",
+      "kavlan-2": "2001:660:4406:581:3:0::5c",
+      "kavlan-20": "2001:660:4406:3a0:503:0::5c",
+      "kavlan-21": "2001:660:4406:6a0:503:0::5c",
+      "kavlan-3": "2001:660:4406:582:3:0::5c",
+      "kavlan-4": "2001:660:4406:590:3:0::5c",
+      "kavlan-5": "2001:660:4406:591:3:0::5c",
+      "kavlan-6": "2001:660:4406:592:3:0::5c",
+      "kavlan-7": "2001:660:4406:593:3:0::5c",
+      "kavlan-8": "2001:660:4406:594:3:0::5c",
+      "kavlan-9": "2001:660:4406:595:3:0::5c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::5c",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.92",
-      "ip6": "2001:660:4406:500:3::5c",
+      "ip6": "2001:660:4406:500:3:0::5c",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:2e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
index bd2f1e7a678..b2514ae6bfb 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-93.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::5d",
-      "kavlan-11": "2001:660:4406:1a0:503::5d",
-      "kavlan-12": "2001:660:4406:2a0:503::5d",
-      "kavlan-13": "2001:660:4406:4a0:503::5d",
-      "kavlan-14": "2001:660:4406:5a0:503::5d",
-      "kavlan-16": "2001:660:4406:7a0:503::5d",
-      "kavlan-18": "2001:660:4406:8a0:503::5d",
-      "kavlan-2": "2001:660:4406:581:3::5d",
-      "kavlan-20": "2001:660:4406:3a0:503::5d",
-      "kavlan-21": "2001:660:4406:6a0:503::5d",
-      "kavlan-3": "2001:660:4406:582:3::5d",
-      "kavlan-4": "2001:660:4406:590:3::5d",
-      "kavlan-5": "2001:660:4406:591:3::5d",
-      "kavlan-6": "2001:660:4406:592:3::5d",
-      "kavlan-7": "2001:660:4406:593:3::5d",
-      "kavlan-8": "2001:660:4406:594:3::5d",
-      "kavlan-9": "2001:660:4406:595:3::5d"
+      "kavlan-1": "2001:660:4406:580:3:0::5d",
+      "kavlan-11": "2001:660:4406:1a0:503:0::5d",
+      "kavlan-12": "2001:660:4406:2a0:503:0::5d",
+      "kavlan-13": "2001:660:4406:4a0:503:0::5d",
+      "kavlan-14": "2001:660:4406:5a0:503:0::5d",
+      "kavlan-16": "2001:660:4406:7a0:503:0::5d",
+      "kavlan-18": "2001:660:4406:8a0:503:0::5d",
+      "kavlan-2": "2001:660:4406:581:3:0::5d",
+      "kavlan-20": "2001:660:4406:3a0:503:0::5d",
+      "kavlan-21": "2001:660:4406:6a0:503:0::5d",
+      "kavlan-3": "2001:660:4406:582:3:0::5d",
+      "kavlan-4": "2001:660:4406:590:3:0::5d",
+      "kavlan-5": "2001:660:4406:591:3:0::5d",
+      "kavlan-6": "2001:660:4406:592:3:0::5d",
+      "kavlan-7": "2001:660:4406:593:3:0::5d",
+      "kavlan-8": "2001:660:4406:594:3:0::5d",
+      "kavlan-9": "2001:660:4406:595:3:0::5d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::5d",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.93",
-      "ip6": "2001:660:4406:500:3::5d",
+      "ip6": "2001:660:4406:500:3:0::5d",
       "kavlan": true,
       "mac": "98:03:9b:b0:bb:26",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
index bbc9a688082..9db755035dd 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-94.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::5e",
-      "kavlan-11": "2001:660:4406:1a0:503::5e",
-      "kavlan-12": "2001:660:4406:2a0:503::5e",
-      "kavlan-13": "2001:660:4406:4a0:503::5e",
-      "kavlan-14": "2001:660:4406:5a0:503::5e",
-      "kavlan-16": "2001:660:4406:7a0:503::5e",
-      "kavlan-18": "2001:660:4406:8a0:503::5e",
-      "kavlan-2": "2001:660:4406:581:3::5e",
-      "kavlan-20": "2001:660:4406:3a0:503::5e",
-      "kavlan-21": "2001:660:4406:6a0:503::5e",
-      "kavlan-3": "2001:660:4406:582:3::5e",
-      "kavlan-4": "2001:660:4406:590:3::5e",
-      "kavlan-5": "2001:660:4406:591:3::5e",
-      "kavlan-6": "2001:660:4406:592:3::5e",
-      "kavlan-7": "2001:660:4406:593:3::5e",
-      "kavlan-8": "2001:660:4406:594:3::5e",
-      "kavlan-9": "2001:660:4406:595:3::5e"
+      "kavlan-1": "2001:660:4406:580:3:0::5e",
+      "kavlan-11": "2001:660:4406:1a0:503:0::5e",
+      "kavlan-12": "2001:660:4406:2a0:503:0::5e",
+      "kavlan-13": "2001:660:4406:4a0:503:0::5e",
+      "kavlan-14": "2001:660:4406:5a0:503:0::5e",
+      "kavlan-16": "2001:660:4406:7a0:503:0::5e",
+      "kavlan-18": "2001:660:4406:8a0:503:0::5e",
+      "kavlan-2": "2001:660:4406:581:3:0::5e",
+      "kavlan-20": "2001:660:4406:3a0:503:0::5e",
+      "kavlan-21": "2001:660:4406:6a0:503:0::5e",
+      "kavlan-3": "2001:660:4406:582:3:0::5e",
+      "kavlan-4": "2001:660:4406:590:3:0::5e",
+      "kavlan-5": "2001:660:4406:591:3:0::5e",
+      "kavlan-6": "2001:660:4406:592:3:0::5e",
+      "kavlan-7": "2001:660:4406:593:3:0::5e",
+      "kavlan-8": "2001:660:4406:594:3:0::5e",
+      "kavlan-9": "2001:660:4406:595:3:0::5e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::5e",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.94",
-      "ip6": "2001:660:4406:500:3::5e",
+      "ip6": "2001:660:4406:500:3:0::5e",
       "kavlan": true,
       "mac": "98:03:9b:b0:b0:a6",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
index b5a63e08a65..28a845d2e65 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-95.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::5f",
-      "kavlan-11": "2001:660:4406:1a0:503::5f",
-      "kavlan-12": "2001:660:4406:2a0:503::5f",
-      "kavlan-13": "2001:660:4406:4a0:503::5f",
-      "kavlan-14": "2001:660:4406:5a0:503::5f",
-      "kavlan-16": "2001:660:4406:7a0:503::5f",
-      "kavlan-18": "2001:660:4406:8a0:503::5f",
-      "kavlan-2": "2001:660:4406:581:3::5f",
-      "kavlan-20": "2001:660:4406:3a0:503::5f",
-      "kavlan-21": "2001:660:4406:6a0:503::5f",
-      "kavlan-3": "2001:660:4406:582:3::5f",
-      "kavlan-4": "2001:660:4406:590:3::5f",
-      "kavlan-5": "2001:660:4406:591:3::5f",
-      "kavlan-6": "2001:660:4406:592:3::5f",
-      "kavlan-7": "2001:660:4406:593:3::5f",
-      "kavlan-8": "2001:660:4406:594:3::5f",
-      "kavlan-9": "2001:660:4406:595:3::5f"
+      "kavlan-1": "2001:660:4406:580:3:0::5f",
+      "kavlan-11": "2001:660:4406:1a0:503:0::5f",
+      "kavlan-12": "2001:660:4406:2a0:503:0::5f",
+      "kavlan-13": "2001:660:4406:4a0:503:0::5f",
+      "kavlan-14": "2001:660:4406:5a0:503:0::5f",
+      "kavlan-16": "2001:660:4406:7a0:503:0::5f",
+      "kavlan-18": "2001:660:4406:8a0:503:0::5f",
+      "kavlan-2": "2001:660:4406:581:3:0::5f",
+      "kavlan-20": "2001:660:4406:3a0:503:0::5f",
+      "kavlan-21": "2001:660:4406:6a0:503:0::5f",
+      "kavlan-3": "2001:660:4406:582:3:0::5f",
+      "kavlan-4": "2001:660:4406:590:3:0::5f",
+      "kavlan-5": "2001:660:4406:591:3:0::5f",
+      "kavlan-6": "2001:660:4406:592:3:0::5f",
+      "kavlan-7": "2001:660:4406:593:3:0::5f",
+      "kavlan-8": "2001:660:4406:594:3:0::5f",
+      "kavlan-9": "2001:660:4406:595:3:0::5f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::5f",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.95",
-      "ip6": "2001:660:4406:500:3::5f",
+      "ip6": "2001:660:4406:500:3:0::5f",
       "kavlan": true,
       "mac": "98:03:9b:b0:6b:2a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
index 9c7cae57ad8..79e01c138bf 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-96.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::60",
-      "kavlan-11": "2001:660:4406:1a0:503::60",
-      "kavlan-12": "2001:660:4406:2a0:503::60",
-      "kavlan-13": "2001:660:4406:4a0:503::60",
-      "kavlan-14": "2001:660:4406:5a0:503::60",
-      "kavlan-16": "2001:660:4406:7a0:503::60",
-      "kavlan-18": "2001:660:4406:8a0:503::60",
-      "kavlan-2": "2001:660:4406:581:3::60",
-      "kavlan-20": "2001:660:4406:3a0:503::60",
-      "kavlan-21": "2001:660:4406:6a0:503::60",
-      "kavlan-3": "2001:660:4406:582:3::60",
-      "kavlan-4": "2001:660:4406:590:3::60",
-      "kavlan-5": "2001:660:4406:591:3::60",
-      "kavlan-6": "2001:660:4406:592:3::60",
-      "kavlan-7": "2001:660:4406:593:3::60",
-      "kavlan-8": "2001:660:4406:594:3::60",
-      "kavlan-9": "2001:660:4406:595:3::60"
+      "kavlan-1": "2001:660:4406:580:3:0::60",
+      "kavlan-11": "2001:660:4406:1a0:503:0::60",
+      "kavlan-12": "2001:660:4406:2a0:503:0::60",
+      "kavlan-13": "2001:660:4406:4a0:503:0::60",
+      "kavlan-14": "2001:660:4406:5a0:503:0::60",
+      "kavlan-16": "2001:660:4406:7a0:503:0::60",
+      "kavlan-18": "2001:660:4406:8a0:503:0::60",
+      "kavlan-2": "2001:660:4406:581:3:0::60",
+      "kavlan-20": "2001:660:4406:3a0:503:0::60",
+      "kavlan-21": "2001:660:4406:6a0:503:0::60",
+      "kavlan-3": "2001:660:4406:582:3:0::60",
+      "kavlan-4": "2001:660:4406:590:3:0::60",
+      "kavlan-5": "2001:660:4406:591:3:0::60",
+      "kavlan-6": "2001:660:4406:592:3:0::60",
+      "kavlan-7": "2001:660:4406:593:3:0::60",
+      "kavlan-8": "2001:660:4406:594:3:0::60",
+      "kavlan-9": "2001:660:4406:595:3:0::60"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::60",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.96",
-      "ip6": "2001:660:4406:500:3::60",
+      "ip6": "2001:660:4406:500:3:0::60",
       "kavlan": true,
       "mac": "98:03:9b:b0:97:1a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
index 9e192234271..4b95867bb7f 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-97.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::61",
-      "kavlan-11": "2001:660:4406:1a0:503::61",
-      "kavlan-12": "2001:660:4406:2a0:503::61",
-      "kavlan-13": "2001:660:4406:4a0:503::61",
-      "kavlan-14": "2001:660:4406:5a0:503::61",
-      "kavlan-16": "2001:660:4406:7a0:503::61",
-      "kavlan-18": "2001:660:4406:8a0:503::61",
-      "kavlan-2": "2001:660:4406:581:3::61",
-      "kavlan-20": "2001:660:4406:3a0:503::61",
-      "kavlan-21": "2001:660:4406:6a0:503::61",
-      "kavlan-3": "2001:660:4406:582:3::61",
-      "kavlan-4": "2001:660:4406:590:3::61",
-      "kavlan-5": "2001:660:4406:591:3::61",
-      "kavlan-6": "2001:660:4406:592:3::61",
-      "kavlan-7": "2001:660:4406:593:3::61",
-      "kavlan-8": "2001:660:4406:594:3::61",
-      "kavlan-9": "2001:660:4406:595:3::61"
+      "kavlan-1": "2001:660:4406:580:3:0::61",
+      "kavlan-11": "2001:660:4406:1a0:503:0::61",
+      "kavlan-12": "2001:660:4406:2a0:503:0::61",
+      "kavlan-13": "2001:660:4406:4a0:503:0::61",
+      "kavlan-14": "2001:660:4406:5a0:503:0::61",
+      "kavlan-16": "2001:660:4406:7a0:503:0::61",
+      "kavlan-18": "2001:660:4406:8a0:503:0::61",
+      "kavlan-2": "2001:660:4406:581:3:0::61",
+      "kavlan-20": "2001:660:4406:3a0:503:0::61",
+      "kavlan-21": "2001:660:4406:6a0:503:0::61",
+      "kavlan-3": "2001:660:4406:582:3:0::61",
+      "kavlan-4": "2001:660:4406:590:3:0::61",
+      "kavlan-5": "2001:660:4406:591:3:0::61",
+      "kavlan-6": "2001:660:4406:592:3:0::61",
+      "kavlan-7": "2001:660:4406:593:3:0::61",
+      "kavlan-8": "2001:660:4406:594:3:0::61",
+      "kavlan-9": "2001:660:4406:595:3:0::61"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::61",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.97",
-      "ip6": "2001:660:4406:500:3::61",
+      "ip6": "2001:660:4406:500:3:0::61",
       "kavlan": true,
       "mac": "98:03:9b:b0:9b:7a",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
index 10c5895e906..e53a9e42aed 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-98.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::62",
-      "kavlan-11": "2001:660:4406:1a0:503::62",
-      "kavlan-12": "2001:660:4406:2a0:503::62",
-      "kavlan-13": "2001:660:4406:4a0:503::62",
-      "kavlan-14": "2001:660:4406:5a0:503::62",
-      "kavlan-16": "2001:660:4406:7a0:503::62",
-      "kavlan-18": "2001:660:4406:8a0:503::62",
-      "kavlan-2": "2001:660:4406:581:3::62",
-      "kavlan-20": "2001:660:4406:3a0:503::62",
-      "kavlan-21": "2001:660:4406:6a0:503::62",
-      "kavlan-3": "2001:660:4406:582:3::62",
-      "kavlan-4": "2001:660:4406:590:3::62",
-      "kavlan-5": "2001:660:4406:591:3::62",
-      "kavlan-6": "2001:660:4406:592:3::62",
-      "kavlan-7": "2001:660:4406:593:3::62",
-      "kavlan-8": "2001:660:4406:594:3::62",
-      "kavlan-9": "2001:660:4406:595:3::62"
+      "kavlan-1": "2001:660:4406:580:3:0::62",
+      "kavlan-11": "2001:660:4406:1a0:503:0::62",
+      "kavlan-12": "2001:660:4406:2a0:503:0::62",
+      "kavlan-13": "2001:660:4406:4a0:503:0::62",
+      "kavlan-14": "2001:660:4406:5a0:503:0::62",
+      "kavlan-16": "2001:660:4406:7a0:503:0::62",
+      "kavlan-18": "2001:660:4406:8a0:503:0::62",
+      "kavlan-2": "2001:660:4406:581:3:0::62",
+      "kavlan-20": "2001:660:4406:3a0:503:0::62",
+      "kavlan-21": "2001:660:4406:6a0:503:0::62",
+      "kavlan-3": "2001:660:4406:582:3:0::62",
+      "kavlan-4": "2001:660:4406:590:3:0::62",
+      "kavlan-5": "2001:660:4406:591:3:0::62",
+      "kavlan-6": "2001:660:4406:592:3:0::62",
+      "kavlan-7": "2001:660:4406:593:3:0::62",
+      "kavlan-8": "2001:660:4406:594:3:0::62",
+      "kavlan-9": "2001:660:4406:595:3:0::62"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::62",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.98",
-      "ip6": "2001:660:4406:500:3::62",
+      "ip6": "2001:660:4406:500:3:0::62",
       "kavlan": true,
       "mac": "98:03:9b:b0:ac:de",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
index 32ae849a2e5..fb0550d8097 100644
--- a/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
+++ b/data/grid5000/sites/nancy/clusters/gros/nodes/gros-99.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:3::63",
-      "kavlan-11": "2001:660:4406:1a0:503::63",
-      "kavlan-12": "2001:660:4406:2a0:503::63",
-      "kavlan-13": "2001:660:4406:4a0:503::63",
-      "kavlan-14": "2001:660:4406:5a0:503::63",
-      "kavlan-16": "2001:660:4406:7a0:503::63",
-      "kavlan-18": "2001:660:4406:8a0:503::63",
-      "kavlan-2": "2001:660:4406:581:3::63",
-      "kavlan-20": "2001:660:4406:3a0:503::63",
-      "kavlan-21": "2001:660:4406:6a0:503::63",
-      "kavlan-3": "2001:660:4406:582:3::63",
-      "kavlan-4": "2001:660:4406:590:3::63",
-      "kavlan-5": "2001:660:4406:591:3::63",
-      "kavlan-6": "2001:660:4406:592:3::63",
-      "kavlan-7": "2001:660:4406:593:3::63",
-      "kavlan-8": "2001:660:4406:594:3::63",
-      "kavlan-9": "2001:660:4406:595:3::63"
+      "kavlan-1": "2001:660:4406:580:3:0::63",
+      "kavlan-11": "2001:660:4406:1a0:503:0::63",
+      "kavlan-12": "2001:660:4406:2a0:503:0::63",
+      "kavlan-13": "2001:660:4406:4a0:503:0::63",
+      "kavlan-14": "2001:660:4406:5a0:503:0::63",
+      "kavlan-16": "2001:660:4406:7a0:503:0::63",
+      "kavlan-18": "2001:660:4406:8a0:503:0::63",
+      "kavlan-2": "2001:660:4406:581:3:0::63",
+      "kavlan-20": "2001:660:4406:3a0:503:0::63",
+      "kavlan-21": "2001:660:4406:6a0:503:0::63",
+      "kavlan-3": "2001:660:4406:582:3:0::63",
+      "kavlan-4": "2001:660:4406:590:3:0::63",
+      "kavlan-5": "2001:660:4406:591:3:0::63",
+      "kavlan-6": "2001:660:4406:592:3:0::63",
+      "kavlan-7": "2001:660:4406:593:3:0::63",
+      "kavlan-8": "2001:660:4406:594:3:0::63",
+      "kavlan-9": "2001:660:4406:595:3:0::63"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:580:3:1::63",
@@ -113,7 +113,7 @@
       "firmware_version": "14.27.6122 (DEL2810000034)",
       "interface": "Ethernet",
       "ip": "172.16.66.99",
-      "ip6": "2001:660:4406:500:3::63",
+      "ip6": "2001:660:4406:500:3:0::63",
       "kavlan": true,
       "mac": "98:03:9b:b0:a7:4e",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json
index 433cc870553..1fb10f48958 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-1.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e::1",
-      "kavlan-11": "2001:660:4406:1a0:50e::1",
-      "kavlan-12": "2001:660:4406:2a0:50e::1",
-      "kavlan-13": "2001:660:4406:4a0:50e::1",
-      "kavlan-14": "2001:660:4406:5a0:50e::1",
-      "kavlan-16": "2001:660:4406:7a0:50e::1",
-      "kavlan-18": "2001:660:4406:8a0:50e::1",
-      "kavlan-2": "2001:660:4406:581:e::1",
-      "kavlan-20": "2001:660:4406:3a0:50e::1",
-      "kavlan-21": "2001:660:4406:6a0:50e::1",
-      "kavlan-3": "2001:660:4406:582:e::1",
-      "kavlan-4": "2001:660:4406:590:e::1",
-      "kavlan-5": "2001:660:4406:591:e::1",
-      "kavlan-6": "2001:660:4406:592:e::1",
-      "kavlan-7": "2001:660:4406:593:e::1",
-      "kavlan-8": "2001:660:4406:594:e::1",
-      "kavlan-9": "2001:660:4406:595:e::1"
+      "kavlan-1": "2001:660:4406:580:e:0::1",
+      "kavlan-11": "2001:660:4406:1a0:50e:0::1",
+      "kavlan-12": "2001:660:4406:2a0:50e:0::1",
+      "kavlan-13": "2001:660:4406:4a0:50e:0::1",
+      "kavlan-14": "2001:660:4406:5a0:50e:0::1",
+      "kavlan-16": "2001:660:4406:7a0:50e:0::1",
+      "kavlan-18": "2001:660:4406:8a0:50e:0::1",
+      "kavlan-2": "2001:660:4406:581:e:0::1",
+      "kavlan-20": "2001:660:4406:3a0:50e:0::1",
+      "kavlan-21": "2001:660:4406:6a0:50e:0::1",
+      "kavlan-3": "2001:660:4406:582:e:0::1",
+      "kavlan-4": "2001:660:4406:590:e:0::1",
+      "kavlan-5": "2001:660:4406:591:e:0::1",
+      "kavlan-6": "2001:660:4406:592:e:0::1",
+      "kavlan-7": "2001:660:4406:593:e:0::1",
+      "kavlan-8": "2001:660:4406:594:e:0::1",
+      "kavlan-9": "2001:660:4406:595:e:0::1"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.1",
-      "ip6": "2001:660:4406:500:e::1",
+      "ip6": "2001:660:4406:500:e:0::1",
       "kavlan": true,
       "mac": "e4:43:4b:a5:71:dc",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-2.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-2.json
index be96051310b..fa33a4c0c05 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-2.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-2.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e::2",
-      "kavlan-11": "2001:660:4406:1a0:50e::2",
-      "kavlan-12": "2001:660:4406:2a0:50e::2",
-      "kavlan-13": "2001:660:4406:4a0:50e::2",
-      "kavlan-14": "2001:660:4406:5a0:50e::2",
-      "kavlan-16": "2001:660:4406:7a0:50e::2",
-      "kavlan-18": "2001:660:4406:8a0:50e::2",
-      "kavlan-2": "2001:660:4406:581:e::2",
-      "kavlan-20": "2001:660:4406:3a0:50e::2",
-      "kavlan-21": "2001:660:4406:6a0:50e::2",
-      "kavlan-3": "2001:660:4406:582:e::2",
-      "kavlan-4": "2001:660:4406:590:e::2",
-      "kavlan-5": "2001:660:4406:591:e::2",
-      "kavlan-6": "2001:660:4406:592:e::2",
-      "kavlan-7": "2001:660:4406:593:e::2",
-      "kavlan-8": "2001:660:4406:594:e::2",
-      "kavlan-9": "2001:660:4406:595:e::2"
+      "kavlan-1": "2001:660:4406:580:e:0::2",
+      "kavlan-11": "2001:660:4406:1a0:50e:0::2",
+      "kavlan-12": "2001:660:4406:2a0:50e:0::2",
+      "kavlan-13": "2001:660:4406:4a0:50e:0::2",
+      "kavlan-14": "2001:660:4406:5a0:50e:0::2",
+      "kavlan-16": "2001:660:4406:7a0:50e:0::2",
+      "kavlan-18": "2001:660:4406:8a0:50e:0::2",
+      "kavlan-2": "2001:660:4406:581:e:0::2",
+      "kavlan-20": "2001:660:4406:3a0:50e:0::2",
+      "kavlan-21": "2001:660:4406:6a0:50e:0::2",
+      "kavlan-3": "2001:660:4406:582:e:0::2",
+      "kavlan-4": "2001:660:4406:590:e:0::2",
+      "kavlan-5": "2001:660:4406:591:e:0::2",
+      "kavlan-6": "2001:660:4406:592:e:0::2",
+      "kavlan-7": "2001:660:4406:593:e:0::2",
+      "kavlan-8": "2001:660:4406:594:e:0::2",
+      "kavlan-9": "2001:660:4406:595:e:0::2"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.2",
-      "ip6": "2001:660:4406:500:e::2",
+      "ip6": "2001:660:4406:500:e:0::2",
       "kavlan": true,
       "mac": "e4:43:4b:a5:b1:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-3.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-3.json
index 36356151ff4..b9f791f8af3 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-3.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-3.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e::3",
-      "kavlan-11": "2001:660:4406:1a0:50e::3",
-      "kavlan-12": "2001:660:4406:2a0:50e::3",
-      "kavlan-13": "2001:660:4406:4a0:50e::3",
-      "kavlan-14": "2001:660:4406:5a0:50e::3",
-      "kavlan-16": "2001:660:4406:7a0:50e::3",
-      "kavlan-18": "2001:660:4406:8a0:50e::3",
-      "kavlan-2": "2001:660:4406:581:e::3",
-      "kavlan-20": "2001:660:4406:3a0:50e::3",
-      "kavlan-21": "2001:660:4406:6a0:50e::3",
-      "kavlan-3": "2001:660:4406:582:e::3",
-      "kavlan-4": "2001:660:4406:590:e::3",
-      "kavlan-5": "2001:660:4406:591:e::3",
-      "kavlan-6": "2001:660:4406:592:e::3",
-      "kavlan-7": "2001:660:4406:593:e::3",
-      "kavlan-8": "2001:660:4406:594:e::3",
-      "kavlan-9": "2001:660:4406:595:e::3"
+      "kavlan-1": "2001:660:4406:580:e:0::3",
+      "kavlan-11": "2001:660:4406:1a0:50e:0::3",
+      "kavlan-12": "2001:660:4406:2a0:50e:0::3",
+      "kavlan-13": "2001:660:4406:4a0:50e:0::3",
+      "kavlan-14": "2001:660:4406:5a0:50e:0::3",
+      "kavlan-16": "2001:660:4406:7a0:50e:0::3",
+      "kavlan-18": "2001:660:4406:8a0:50e:0::3",
+      "kavlan-2": "2001:660:4406:581:e:0::3",
+      "kavlan-20": "2001:660:4406:3a0:50e:0::3",
+      "kavlan-21": "2001:660:4406:6a0:50e:0::3",
+      "kavlan-3": "2001:660:4406:582:e:0::3",
+      "kavlan-4": "2001:660:4406:590:e:0::3",
+      "kavlan-5": "2001:660:4406:591:e:0::3",
+      "kavlan-6": "2001:660:4406:592:e:0::3",
+      "kavlan-7": "2001:660:4406:593:e:0::3",
+      "kavlan-8": "2001:660:4406:594:e:0::3",
+      "kavlan-9": "2001:660:4406:595:e:0::3"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.3",
-      "ip6": "2001:660:4406:500:e::3",
+      "ip6": "2001:660:4406:500:e:0::3",
       "kavlan": true,
       "mac": "e4:43:4b:a4:49:fa",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-4.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-4.json
index e9b3c6c7a21..09e20361376 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-4.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-4.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e::4",
-      "kavlan-11": "2001:660:4406:1a0:50e::4",
-      "kavlan-12": "2001:660:4406:2a0:50e::4",
-      "kavlan-13": "2001:660:4406:4a0:50e::4",
-      "kavlan-14": "2001:660:4406:5a0:50e::4",
-      "kavlan-16": "2001:660:4406:7a0:50e::4",
-      "kavlan-18": "2001:660:4406:8a0:50e::4",
-      "kavlan-2": "2001:660:4406:581:e::4",
-      "kavlan-20": "2001:660:4406:3a0:50e::4",
-      "kavlan-21": "2001:660:4406:6a0:50e::4",
-      "kavlan-3": "2001:660:4406:582:e::4",
-      "kavlan-4": "2001:660:4406:590:e::4",
-      "kavlan-5": "2001:660:4406:591:e::4",
-      "kavlan-6": "2001:660:4406:592:e::4",
-      "kavlan-7": "2001:660:4406:593:e::4",
-      "kavlan-8": "2001:660:4406:594:e::4",
-      "kavlan-9": "2001:660:4406:595:e::4"
+      "kavlan-1": "2001:660:4406:580:e:0::4",
+      "kavlan-11": "2001:660:4406:1a0:50e:0::4",
+      "kavlan-12": "2001:660:4406:2a0:50e:0::4",
+      "kavlan-13": "2001:660:4406:4a0:50e:0::4",
+      "kavlan-14": "2001:660:4406:5a0:50e:0::4",
+      "kavlan-16": "2001:660:4406:7a0:50e:0::4",
+      "kavlan-18": "2001:660:4406:8a0:50e:0::4",
+      "kavlan-2": "2001:660:4406:581:e:0::4",
+      "kavlan-20": "2001:660:4406:3a0:50e:0::4",
+      "kavlan-21": "2001:660:4406:6a0:50e:0::4",
+      "kavlan-3": "2001:660:4406:582:e:0::4",
+      "kavlan-4": "2001:660:4406:590:e:0::4",
+      "kavlan-5": "2001:660:4406:591:e:0::4",
+      "kavlan-6": "2001:660:4406:592:e:0::4",
+      "kavlan-7": "2001:660:4406:593:e:0::4",
+      "kavlan-8": "2001:660:4406:594:e:0::4",
+      "kavlan-9": "2001:660:4406:595:e:0::4"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.4",
-      "ip6": "2001:660:4406:500:e::4",
+      "ip6": "2001:660:4406:500:e:0::4",
       "kavlan": true,
       "mac": "e4:43:4b:a5:4f:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-5.json b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-5.json
index 28d953f817d..3a9604a0a38 100644
--- a/data/grid5000/sites/nancy/clusters/grue/nodes/grue-5.json
+++ b/data/grid5000/sites/nancy/clusters/grue/nodes/grue-5.json
@@ -83,23 +83,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:e::5",
-      "kavlan-11": "2001:660:4406:1a0:50e::5",
-      "kavlan-12": "2001:660:4406:2a0:50e::5",
-      "kavlan-13": "2001:660:4406:4a0:50e::5",
-      "kavlan-14": "2001:660:4406:5a0:50e::5",
-      "kavlan-16": "2001:660:4406:7a0:50e::5",
-      "kavlan-18": "2001:660:4406:8a0:50e::5",
-      "kavlan-2": "2001:660:4406:581:e::5",
-      "kavlan-20": "2001:660:4406:3a0:50e::5",
-      "kavlan-21": "2001:660:4406:6a0:50e::5",
-      "kavlan-3": "2001:660:4406:582:e::5",
-      "kavlan-4": "2001:660:4406:590:e::5",
-      "kavlan-5": "2001:660:4406:591:e::5",
-      "kavlan-6": "2001:660:4406:592:e::5",
-      "kavlan-7": "2001:660:4406:593:e::5",
-      "kavlan-8": "2001:660:4406:594:e::5",
-      "kavlan-9": "2001:660:4406:595:e::5"
+      "kavlan-1": "2001:660:4406:580:e:0::5",
+      "kavlan-11": "2001:660:4406:1a0:50e:0::5",
+      "kavlan-12": "2001:660:4406:2a0:50e:0::5",
+      "kavlan-13": "2001:660:4406:4a0:50e:0::5",
+      "kavlan-14": "2001:660:4406:5a0:50e:0::5",
+      "kavlan-16": "2001:660:4406:7a0:50e:0::5",
+      "kavlan-18": "2001:660:4406:8a0:50e:0::5",
+      "kavlan-2": "2001:660:4406:581:e:0::5",
+      "kavlan-20": "2001:660:4406:3a0:50e:0::5",
+      "kavlan-21": "2001:660:4406:6a0:50e:0::5",
+      "kavlan-3": "2001:660:4406:582:e:0::5",
+      "kavlan-4": "2001:660:4406:590:e:0::5",
+      "kavlan-5": "2001:660:4406:591:e:0::5",
+      "kavlan-6": "2001:660:4406:592:e:0::5",
+      "kavlan-7": "2001:660:4406:593:e:0::5",
+      "kavlan-8": "2001:660:4406:594:e:0::5",
+      "kavlan-9": "2001:660:4406:595:e:0::5"
     }
   },
   "main_memory": {
@@ -116,7 +116,7 @@
       "firmware_version": "7.10 0x8000519f 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.77.5",
-      "ip6": "2001:660:4406:500:e::5",
+      "ip6": "2001:660:4406:500:e:0::5",
       "kavlan": true,
       "mac": "e4:43:4b:a4:02:ec",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json
index ef8d1c20230..6ece58aa65c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::1",
-      "kavlan-11": "2001:660:4406:1a0:50d::1",
-      "kavlan-12": "2001:660:4406:2a0:50d::1",
-      "kavlan-13": "2001:660:4406:4a0:50d::1",
-      "kavlan-14": "2001:660:4406:5a0:50d::1",
-      "kavlan-16": "2001:660:4406:7a0:50d::1",
-      "kavlan-18": "2001:660:4406:8a0:50d::1",
-      "kavlan-2": "2001:660:4406:581:d::1",
-      "kavlan-20": "2001:660:4406:3a0:50d::1",
-      "kavlan-21": "2001:660:4406:6a0:50d::1",
-      "kavlan-3": "2001:660:4406:582:d::1",
-      "kavlan-4": "2001:660:4406:590:d::1",
-      "kavlan-5": "2001:660:4406:591:d::1",
-      "kavlan-6": "2001:660:4406:592:d::1",
-      "kavlan-7": "2001:660:4406:593:d::1",
-      "kavlan-8": "2001:660:4406:594:d::1",
-      "kavlan-9": "2001:660:4406:595:d::1"
+      "kavlan-1": "2001:660:4406:580:d:0::1",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::1",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::1",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::1",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::1",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::1",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::1",
+      "kavlan-2": "2001:660:4406:581:d:0::1",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::1",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::1",
+      "kavlan-3": "2001:660:4406:582:d:0::1",
+      "kavlan-4": "2001:660:4406:590:d:0::1",
+      "kavlan-5": "2001:660:4406:591:d:0::1",
+      "kavlan-6": "2001:660:4406:592:d:0::1",
+      "kavlan-7": "2001:660:4406:593:d:0::1",
+      "kavlan-8": "2001:660:4406:594:d:0::1",
+      "kavlan-9": "2001:660:4406:595:d:0::1"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.1",
-      "ip6": "2001:660:4406:500:d::1",
+      "ip6": "2001:660:4406:500:d:0::1",
       "kavlan": true,
       "mac": "3c:fd:fe:58:07:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json
index 20d25b8463c..8909c437d6b 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::a",
-      "kavlan-11": "2001:660:4406:1a0:50d::a",
-      "kavlan-12": "2001:660:4406:2a0:50d::a",
-      "kavlan-13": "2001:660:4406:4a0:50d::a",
-      "kavlan-14": "2001:660:4406:5a0:50d::a",
-      "kavlan-16": "2001:660:4406:7a0:50d::a",
-      "kavlan-18": "2001:660:4406:8a0:50d::a",
-      "kavlan-2": "2001:660:4406:581:d::a",
-      "kavlan-20": "2001:660:4406:3a0:50d::a",
-      "kavlan-21": "2001:660:4406:6a0:50d::a",
-      "kavlan-3": "2001:660:4406:582:d::a",
-      "kavlan-4": "2001:660:4406:590:d::a",
-      "kavlan-5": "2001:660:4406:591:d::a",
-      "kavlan-6": "2001:660:4406:592:d::a",
-      "kavlan-7": "2001:660:4406:593:d::a",
-      "kavlan-8": "2001:660:4406:594:d::a",
-      "kavlan-9": "2001:660:4406:595:d::a"
+      "kavlan-1": "2001:660:4406:580:d:0::a",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::a",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::a",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::a",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::a",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::a",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::a",
+      "kavlan-2": "2001:660:4406:581:d:0::a",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::a",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::a",
+      "kavlan-3": "2001:660:4406:582:d:0::a",
+      "kavlan-4": "2001:660:4406:590:d:0::a",
+      "kavlan-5": "2001:660:4406:591:d:0::a",
+      "kavlan-6": "2001:660:4406:592:d:0::a",
+      "kavlan-7": "2001:660:4406:593:d:0::a",
+      "kavlan-8": "2001:660:4406:594:d:0::a",
+      "kavlan-9": "2001:660:4406:595:d:0::a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.10",
-      "ip6": "2001:660:4406:500:d::a",
+      "ip6": "2001:660:4406:500:d:0::a",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1a:30",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json
index 3ba9e7a92b5..777d8fcdc0b 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::b",
-      "kavlan-11": "2001:660:4406:1a0:50d::b",
-      "kavlan-12": "2001:660:4406:2a0:50d::b",
-      "kavlan-13": "2001:660:4406:4a0:50d::b",
-      "kavlan-14": "2001:660:4406:5a0:50d::b",
-      "kavlan-16": "2001:660:4406:7a0:50d::b",
-      "kavlan-18": "2001:660:4406:8a0:50d::b",
-      "kavlan-2": "2001:660:4406:581:d::b",
-      "kavlan-20": "2001:660:4406:3a0:50d::b",
-      "kavlan-21": "2001:660:4406:6a0:50d::b",
-      "kavlan-3": "2001:660:4406:582:d::b",
-      "kavlan-4": "2001:660:4406:590:d::b",
-      "kavlan-5": "2001:660:4406:591:d::b",
-      "kavlan-6": "2001:660:4406:592:d::b",
-      "kavlan-7": "2001:660:4406:593:d::b",
-      "kavlan-8": "2001:660:4406:594:d::b",
-      "kavlan-9": "2001:660:4406:595:d::b"
+      "kavlan-1": "2001:660:4406:580:d:0::b",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::b",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::b",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::b",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::b",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::b",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::b",
+      "kavlan-2": "2001:660:4406:581:d:0::b",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::b",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::b",
+      "kavlan-3": "2001:660:4406:582:d:0::b",
+      "kavlan-4": "2001:660:4406:590:d:0::b",
+      "kavlan-5": "2001:660:4406:591:d:0::b",
+      "kavlan-6": "2001:660:4406:592:d:0::b",
+      "kavlan-7": "2001:660:4406:593:d:0::b",
+      "kavlan-8": "2001:660:4406:594:d:0::b",
+      "kavlan-9": "2001:660:4406:595:d:0::b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.11",
-      "ip6": "2001:660:4406:500:d::b",
+      "ip6": "2001:660:4406:500:d:0::b",
       "kavlan": true,
       "mac": "3c:fd:fe:59:2d:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json
index d1d83d5db87..af9bcbf1d4c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::c",
-      "kavlan-11": "2001:660:4406:1a0:50d::c",
-      "kavlan-12": "2001:660:4406:2a0:50d::c",
-      "kavlan-13": "2001:660:4406:4a0:50d::c",
-      "kavlan-14": "2001:660:4406:5a0:50d::c",
-      "kavlan-16": "2001:660:4406:7a0:50d::c",
-      "kavlan-18": "2001:660:4406:8a0:50d::c",
-      "kavlan-2": "2001:660:4406:581:d::c",
-      "kavlan-20": "2001:660:4406:3a0:50d::c",
-      "kavlan-21": "2001:660:4406:6a0:50d::c",
-      "kavlan-3": "2001:660:4406:582:d::c",
-      "kavlan-4": "2001:660:4406:590:d::c",
-      "kavlan-5": "2001:660:4406:591:d::c",
-      "kavlan-6": "2001:660:4406:592:d::c",
-      "kavlan-7": "2001:660:4406:593:d::c",
-      "kavlan-8": "2001:660:4406:594:d::c",
-      "kavlan-9": "2001:660:4406:595:d::c"
+      "kavlan-1": "2001:660:4406:580:d:0::c",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::c",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::c",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::c",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::c",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::c",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::c",
+      "kavlan-2": "2001:660:4406:581:d:0::c",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::c",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::c",
+      "kavlan-3": "2001:660:4406:582:d:0::c",
+      "kavlan-4": "2001:660:4406:590:d:0::c",
+      "kavlan-5": "2001:660:4406:591:d:0::c",
+      "kavlan-6": "2001:660:4406:592:d:0::c",
+      "kavlan-7": "2001:660:4406:593:d:0::c",
+      "kavlan-8": "2001:660:4406:594:d:0::c",
+      "kavlan-9": "2001:660:4406:595:d:0::c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.12",
-      "ip6": "2001:660:4406:500:d::c",
+      "ip6": "2001:660:4406:500:d:0::c",
       "kavlan": true,
       "mac": "3c:fd:fe:59:18:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json
index 51fda14c0fa..70e4af5e14b 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::d",
-      "kavlan-11": "2001:660:4406:1a0:50d::d",
-      "kavlan-12": "2001:660:4406:2a0:50d::d",
-      "kavlan-13": "2001:660:4406:4a0:50d::d",
-      "kavlan-14": "2001:660:4406:5a0:50d::d",
-      "kavlan-16": "2001:660:4406:7a0:50d::d",
-      "kavlan-18": "2001:660:4406:8a0:50d::d",
-      "kavlan-2": "2001:660:4406:581:d::d",
-      "kavlan-20": "2001:660:4406:3a0:50d::d",
-      "kavlan-21": "2001:660:4406:6a0:50d::d",
-      "kavlan-3": "2001:660:4406:582:d::d",
-      "kavlan-4": "2001:660:4406:590:d::d",
-      "kavlan-5": "2001:660:4406:591:d::d",
-      "kavlan-6": "2001:660:4406:592:d::d",
-      "kavlan-7": "2001:660:4406:593:d::d",
-      "kavlan-8": "2001:660:4406:594:d::d",
-      "kavlan-9": "2001:660:4406:595:d::d"
+      "kavlan-1": "2001:660:4406:580:d:0::d",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::d",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::d",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::d",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::d",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::d",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::d",
+      "kavlan-2": "2001:660:4406:581:d:0::d",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::d",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::d",
+      "kavlan-3": "2001:660:4406:582:d:0::d",
+      "kavlan-4": "2001:660:4406:590:d:0::d",
+      "kavlan-5": "2001:660:4406:591:d:0::d",
+      "kavlan-6": "2001:660:4406:592:d:0::d",
+      "kavlan-7": "2001:660:4406:593:d:0::d",
+      "kavlan-8": "2001:660:4406:594:d:0::d",
+      "kavlan-9": "2001:660:4406:595:d:0::d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.13",
-      "ip6": "2001:660:4406:500:d::d",
+      "ip6": "2001:660:4406:500:d:0::d",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1e:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json
index 53f19218eb5..ce71952c2e4 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::e",
-      "kavlan-11": "2001:660:4406:1a0:50d::e",
-      "kavlan-12": "2001:660:4406:2a0:50d::e",
-      "kavlan-13": "2001:660:4406:4a0:50d::e",
-      "kavlan-14": "2001:660:4406:5a0:50d::e",
-      "kavlan-16": "2001:660:4406:7a0:50d::e",
-      "kavlan-18": "2001:660:4406:8a0:50d::e",
-      "kavlan-2": "2001:660:4406:581:d::e",
-      "kavlan-20": "2001:660:4406:3a0:50d::e",
-      "kavlan-21": "2001:660:4406:6a0:50d::e",
-      "kavlan-3": "2001:660:4406:582:d::e",
-      "kavlan-4": "2001:660:4406:590:d::e",
-      "kavlan-5": "2001:660:4406:591:d::e",
-      "kavlan-6": "2001:660:4406:592:d::e",
-      "kavlan-7": "2001:660:4406:593:d::e",
-      "kavlan-8": "2001:660:4406:594:d::e",
-      "kavlan-9": "2001:660:4406:595:d::e"
+      "kavlan-1": "2001:660:4406:580:d:0::e",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::e",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::e",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::e",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::e",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::e",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::e",
+      "kavlan-2": "2001:660:4406:581:d:0::e",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::e",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::e",
+      "kavlan-3": "2001:660:4406:582:d:0::e",
+      "kavlan-4": "2001:660:4406:590:d:0::e",
+      "kavlan-5": "2001:660:4406:591:d:0::e",
+      "kavlan-6": "2001:660:4406:592:d:0::e",
+      "kavlan-7": "2001:660:4406:593:d:0::e",
+      "kavlan-8": "2001:660:4406:594:d:0::e",
+      "kavlan-9": "2001:660:4406:595:d:0::e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.14",
-      "ip6": "2001:660:4406:500:d::e",
+      "ip6": "2001:660:4406:500:d:0::e",
       "kavlan": true,
       "mac": "3c:fd:fe:58:07:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json
index 41dc98b30f8..068dd579ed4 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::f",
-      "kavlan-11": "2001:660:4406:1a0:50d::f",
-      "kavlan-12": "2001:660:4406:2a0:50d::f",
-      "kavlan-13": "2001:660:4406:4a0:50d::f",
-      "kavlan-14": "2001:660:4406:5a0:50d::f",
-      "kavlan-16": "2001:660:4406:7a0:50d::f",
-      "kavlan-18": "2001:660:4406:8a0:50d::f",
-      "kavlan-2": "2001:660:4406:581:d::f",
-      "kavlan-20": "2001:660:4406:3a0:50d::f",
-      "kavlan-21": "2001:660:4406:6a0:50d::f",
-      "kavlan-3": "2001:660:4406:582:d::f",
-      "kavlan-4": "2001:660:4406:590:d::f",
-      "kavlan-5": "2001:660:4406:591:d::f",
-      "kavlan-6": "2001:660:4406:592:d::f",
-      "kavlan-7": "2001:660:4406:593:d::f",
-      "kavlan-8": "2001:660:4406:594:d::f",
-      "kavlan-9": "2001:660:4406:595:d::f"
+      "kavlan-1": "2001:660:4406:580:d:0::f",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::f",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::f",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::f",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::f",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::f",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::f",
+      "kavlan-2": "2001:660:4406:581:d:0::f",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::f",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::f",
+      "kavlan-3": "2001:660:4406:582:d:0::f",
+      "kavlan-4": "2001:660:4406:590:d:0::f",
+      "kavlan-5": "2001:660:4406:591:d:0::f",
+      "kavlan-6": "2001:660:4406:592:d:0::f",
+      "kavlan-7": "2001:660:4406:593:d:0::f",
+      "kavlan-8": "2001:660:4406:594:d:0::f",
+      "kavlan-9": "2001:660:4406:595:d:0::f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.15",
-      "ip6": "2001:660:4406:500:d::f",
+      "ip6": "2001:660:4406:500:d:0::f",
       "kavlan": true,
       "mac": "3c:fd:fe:58:13:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json
index 88746e92e22..3d907915514 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::10",
-      "kavlan-11": "2001:660:4406:1a0:50d::10",
-      "kavlan-12": "2001:660:4406:2a0:50d::10",
-      "kavlan-13": "2001:660:4406:4a0:50d::10",
-      "kavlan-14": "2001:660:4406:5a0:50d::10",
-      "kavlan-16": "2001:660:4406:7a0:50d::10",
-      "kavlan-18": "2001:660:4406:8a0:50d::10",
-      "kavlan-2": "2001:660:4406:581:d::10",
-      "kavlan-20": "2001:660:4406:3a0:50d::10",
-      "kavlan-21": "2001:660:4406:6a0:50d::10",
-      "kavlan-3": "2001:660:4406:582:d::10",
-      "kavlan-4": "2001:660:4406:590:d::10",
-      "kavlan-5": "2001:660:4406:591:d::10",
-      "kavlan-6": "2001:660:4406:592:d::10",
-      "kavlan-7": "2001:660:4406:593:d::10",
-      "kavlan-8": "2001:660:4406:594:d::10",
-      "kavlan-9": "2001:660:4406:595:d::10"
+      "kavlan-1": "2001:660:4406:580:d:0::10",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::10",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::10",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::10",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::10",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::10",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::10",
+      "kavlan-2": "2001:660:4406:581:d:0::10",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::10",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::10",
+      "kavlan-3": "2001:660:4406:582:d:0::10",
+      "kavlan-4": "2001:660:4406:590:d:0::10",
+      "kavlan-5": "2001:660:4406:591:d:0::10",
+      "kavlan-6": "2001:660:4406:592:d:0::10",
+      "kavlan-7": "2001:660:4406:593:d:0::10",
+      "kavlan-8": "2001:660:4406:594:d:0::10",
+      "kavlan-9": "2001:660:4406:595:d:0::10"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.16",
-      "ip6": "2001:660:4406:500:d::10",
+      "ip6": "2001:660:4406:500:d:0::10",
       "kavlan": true,
       "mac": "3c:fd:fe:58:14:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json
index ba8acfd94c0..2c464cd8652 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::11",
-      "kavlan-11": "2001:660:4406:1a0:50d::11",
-      "kavlan-12": "2001:660:4406:2a0:50d::11",
-      "kavlan-13": "2001:660:4406:4a0:50d::11",
-      "kavlan-14": "2001:660:4406:5a0:50d::11",
-      "kavlan-16": "2001:660:4406:7a0:50d::11",
-      "kavlan-18": "2001:660:4406:8a0:50d::11",
-      "kavlan-2": "2001:660:4406:581:d::11",
-      "kavlan-20": "2001:660:4406:3a0:50d::11",
-      "kavlan-21": "2001:660:4406:6a0:50d::11",
-      "kavlan-3": "2001:660:4406:582:d::11",
-      "kavlan-4": "2001:660:4406:590:d::11",
-      "kavlan-5": "2001:660:4406:591:d::11",
-      "kavlan-6": "2001:660:4406:592:d::11",
-      "kavlan-7": "2001:660:4406:593:d::11",
-      "kavlan-8": "2001:660:4406:594:d::11",
-      "kavlan-9": "2001:660:4406:595:d::11"
+      "kavlan-1": "2001:660:4406:580:d:0::11",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::11",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::11",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::11",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::11",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::11",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::11",
+      "kavlan-2": "2001:660:4406:581:d:0::11",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::11",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::11",
+      "kavlan-3": "2001:660:4406:582:d:0::11",
+      "kavlan-4": "2001:660:4406:590:d:0::11",
+      "kavlan-5": "2001:660:4406:591:d:0::11",
+      "kavlan-6": "2001:660:4406:592:d:0::11",
+      "kavlan-7": "2001:660:4406:593:d:0::11",
+      "kavlan-8": "2001:660:4406:594:d:0::11",
+      "kavlan-9": "2001:660:4406:595:d:0::11"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.17",
-      "ip6": "2001:660:4406:500:d::11",
+      "ip6": "2001:660:4406:500:d:0::11",
       "kavlan": true,
       "mac": "3c:fd:fe:56:f1:e0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json
index 4650c9582a2..f431743a0f1 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::12",
-      "kavlan-11": "2001:660:4406:1a0:50d::12",
-      "kavlan-12": "2001:660:4406:2a0:50d::12",
-      "kavlan-13": "2001:660:4406:4a0:50d::12",
-      "kavlan-14": "2001:660:4406:5a0:50d::12",
-      "kavlan-16": "2001:660:4406:7a0:50d::12",
-      "kavlan-18": "2001:660:4406:8a0:50d::12",
-      "kavlan-2": "2001:660:4406:581:d::12",
-      "kavlan-20": "2001:660:4406:3a0:50d::12",
-      "kavlan-21": "2001:660:4406:6a0:50d::12",
-      "kavlan-3": "2001:660:4406:582:d::12",
-      "kavlan-4": "2001:660:4406:590:d::12",
-      "kavlan-5": "2001:660:4406:591:d::12",
-      "kavlan-6": "2001:660:4406:592:d::12",
-      "kavlan-7": "2001:660:4406:593:d::12",
-      "kavlan-8": "2001:660:4406:594:d::12",
-      "kavlan-9": "2001:660:4406:595:d::12"
+      "kavlan-1": "2001:660:4406:580:d:0::12",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::12",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::12",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::12",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::12",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::12",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::12",
+      "kavlan-2": "2001:660:4406:581:d:0::12",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::12",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::12",
+      "kavlan-3": "2001:660:4406:582:d:0::12",
+      "kavlan-4": "2001:660:4406:590:d:0::12",
+      "kavlan-5": "2001:660:4406:591:d:0::12",
+      "kavlan-6": "2001:660:4406:592:d:0::12",
+      "kavlan-7": "2001:660:4406:593:d:0::12",
+      "kavlan-8": "2001:660:4406:594:d:0::12",
+      "kavlan-9": "2001:660:4406:595:d:0::12"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.18",
-      "ip6": "2001:660:4406:500:d::12",
+      "ip6": "2001:660:4406:500:d:0::12",
       "kavlan": true,
       "mac": "3c:fd:fe:59:18:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json
index 7cf07ace2af..9bbfad663a6 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::13",
-      "kavlan-11": "2001:660:4406:1a0:50d::13",
-      "kavlan-12": "2001:660:4406:2a0:50d::13",
-      "kavlan-13": "2001:660:4406:4a0:50d::13",
-      "kavlan-14": "2001:660:4406:5a0:50d::13",
-      "kavlan-16": "2001:660:4406:7a0:50d::13",
-      "kavlan-18": "2001:660:4406:8a0:50d::13",
-      "kavlan-2": "2001:660:4406:581:d::13",
-      "kavlan-20": "2001:660:4406:3a0:50d::13",
-      "kavlan-21": "2001:660:4406:6a0:50d::13",
-      "kavlan-3": "2001:660:4406:582:d::13",
-      "kavlan-4": "2001:660:4406:590:d::13",
-      "kavlan-5": "2001:660:4406:591:d::13",
-      "kavlan-6": "2001:660:4406:592:d::13",
-      "kavlan-7": "2001:660:4406:593:d::13",
-      "kavlan-8": "2001:660:4406:594:d::13",
-      "kavlan-9": "2001:660:4406:595:d::13"
+      "kavlan-1": "2001:660:4406:580:d:0::13",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::13",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::13",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::13",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::13",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::13",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::13",
+      "kavlan-2": "2001:660:4406:581:d:0::13",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::13",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::13",
+      "kavlan-3": "2001:660:4406:582:d:0::13",
+      "kavlan-4": "2001:660:4406:590:d:0::13",
+      "kavlan-5": "2001:660:4406:591:d:0::13",
+      "kavlan-6": "2001:660:4406:592:d:0::13",
+      "kavlan-7": "2001:660:4406:593:d:0::13",
+      "kavlan-8": "2001:660:4406:594:d:0::13",
+      "kavlan-9": "2001:660:4406:595:d:0::13"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.19",
-      "ip6": "2001:660:4406:500:d::13",
+      "ip6": "2001:660:4406:500:d:0::13",
       "kavlan": true,
       "mac": "3c:fd:fe:56:f1:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json
index 3dae6c3e198..e8b41264731 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::2",
-      "kavlan-11": "2001:660:4406:1a0:50d::2",
-      "kavlan-12": "2001:660:4406:2a0:50d::2",
-      "kavlan-13": "2001:660:4406:4a0:50d::2",
-      "kavlan-14": "2001:660:4406:5a0:50d::2",
-      "kavlan-16": "2001:660:4406:7a0:50d::2",
-      "kavlan-18": "2001:660:4406:8a0:50d::2",
-      "kavlan-2": "2001:660:4406:581:d::2",
-      "kavlan-20": "2001:660:4406:3a0:50d::2",
-      "kavlan-21": "2001:660:4406:6a0:50d::2",
-      "kavlan-3": "2001:660:4406:582:d::2",
-      "kavlan-4": "2001:660:4406:590:d::2",
-      "kavlan-5": "2001:660:4406:591:d::2",
-      "kavlan-6": "2001:660:4406:592:d::2",
-      "kavlan-7": "2001:660:4406:593:d::2",
-      "kavlan-8": "2001:660:4406:594:d::2",
-      "kavlan-9": "2001:660:4406:595:d::2"
+      "kavlan-1": "2001:660:4406:580:d:0::2",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::2",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::2",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::2",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::2",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::2",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::2",
+      "kavlan-2": "2001:660:4406:581:d:0::2",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::2",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::2",
+      "kavlan-3": "2001:660:4406:582:d:0::2",
+      "kavlan-4": "2001:660:4406:590:d:0::2",
+      "kavlan-5": "2001:660:4406:591:d:0::2",
+      "kavlan-6": "2001:660:4406:592:d:0::2",
+      "kavlan-7": "2001:660:4406:593:d:0::2",
+      "kavlan-8": "2001:660:4406:594:d:0::2",
+      "kavlan-9": "2001:660:4406:595:d:0::2"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.2",
-      "ip6": "2001:660:4406:500:d::2",
+      "ip6": "2001:660:4406:500:d:0::2",
       "kavlan": true,
       "mac": "3c:fd:fe:58:19:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json
index 19d5bdd04d9..0980e5f4d2b 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::14",
-      "kavlan-11": "2001:660:4406:1a0:50d::14",
-      "kavlan-12": "2001:660:4406:2a0:50d::14",
-      "kavlan-13": "2001:660:4406:4a0:50d::14",
-      "kavlan-14": "2001:660:4406:5a0:50d::14",
-      "kavlan-16": "2001:660:4406:7a0:50d::14",
-      "kavlan-18": "2001:660:4406:8a0:50d::14",
-      "kavlan-2": "2001:660:4406:581:d::14",
-      "kavlan-20": "2001:660:4406:3a0:50d::14",
-      "kavlan-21": "2001:660:4406:6a0:50d::14",
-      "kavlan-3": "2001:660:4406:582:d::14",
-      "kavlan-4": "2001:660:4406:590:d::14",
-      "kavlan-5": "2001:660:4406:591:d::14",
-      "kavlan-6": "2001:660:4406:592:d::14",
-      "kavlan-7": "2001:660:4406:593:d::14",
-      "kavlan-8": "2001:660:4406:594:d::14",
-      "kavlan-9": "2001:660:4406:595:d::14"
+      "kavlan-1": "2001:660:4406:580:d:0::14",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::14",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::14",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::14",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::14",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::14",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::14",
+      "kavlan-2": "2001:660:4406:581:d:0::14",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::14",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::14",
+      "kavlan-3": "2001:660:4406:582:d:0::14",
+      "kavlan-4": "2001:660:4406:590:d:0::14",
+      "kavlan-5": "2001:660:4406:591:d:0::14",
+      "kavlan-6": "2001:660:4406:592:d:0::14",
+      "kavlan-7": "2001:660:4406:593:d:0::14",
+      "kavlan-8": "2001:660:4406:594:d:0::14",
+      "kavlan-9": "2001:660:4406:595:d:0::14"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.20",
-      "ip6": "2001:660:4406:500:d::14",
+      "ip6": "2001:660:4406:500:d:0::14",
       "kavlan": true,
       "mac": "3c:fd:fe:56:f7:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json
index bd232bc9ae4..8f6ba31e4f1 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::15",
-      "kavlan-11": "2001:660:4406:1a0:50d::15",
-      "kavlan-12": "2001:660:4406:2a0:50d::15",
-      "kavlan-13": "2001:660:4406:4a0:50d::15",
-      "kavlan-14": "2001:660:4406:5a0:50d::15",
-      "kavlan-16": "2001:660:4406:7a0:50d::15",
-      "kavlan-18": "2001:660:4406:8a0:50d::15",
-      "kavlan-2": "2001:660:4406:581:d::15",
-      "kavlan-20": "2001:660:4406:3a0:50d::15",
-      "kavlan-21": "2001:660:4406:6a0:50d::15",
-      "kavlan-3": "2001:660:4406:582:d::15",
-      "kavlan-4": "2001:660:4406:590:d::15",
-      "kavlan-5": "2001:660:4406:591:d::15",
-      "kavlan-6": "2001:660:4406:592:d::15",
-      "kavlan-7": "2001:660:4406:593:d::15",
-      "kavlan-8": "2001:660:4406:594:d::15",
-      "kavlan-9": "2001:660:4406:595:d::15"
+      "kavlan-1": "2001:660:4406:580:d:0::15",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::15",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::15",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::15",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::15",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::15",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::15",
+      "kavlan-2": "2001:660:4406:581:d:0::15",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::15",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::15",
+      "kavlan-3": "2001:660:4406:582:d:0::15",
+      "kavlan-4": "2001:660:4406:590:d:0::15",
+      "kavlan-5": "2001:660:4406:591:d:0::15",
+      "kavlan-6": "2001:660:4406:592:d:0::15",
+      "kavlan-7": "2001:660:4406:593:d:0::15",
+      "kavlan-8": "2001:660:4406:594:d:0::15",
+      "kavlan-9": "2001:660:4406:595:d:0::15"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.21",
-      "ip6": "2001:660:4406:500:d::15",
+      "ip6": "2001:660:4406:500:d:0::15",
       "kavlan": true,
       "mac": "3c:fd:fe:57:53:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json
index 885f9443c88..fc4a7809fd8 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::16",
-      "kavlan-11": "2001:660:4406:1a0:50d::16",
-      "kavlan-12": "2001:660:4406:2a0:50d::16",
-      "kavlan-13": "2001:660:4406:4a0:50d::16",
-      "kavlan-14": "2001:660:4406:5a0:50d::16",
-      "kavlan-16": "2001:660:4406:7a0:50d::16",
-      "kavlan-18": "2001:660:4406:8a0:50d::16",
-      "kavlan-2": "2001:660:4406:581:d::16",
-      "kavlan-20": "2001:660:4406:3a0:50d::16",
-      "kavlan-21": "2001:660:4406:6a0:50d::16",
-      "kavlan-3": "2001:660:4406:582:d::16",
-      "kavlan-4": "2001:660:4406:590:d::16",
-      "kavlan-5": "2001:660:4406:591:d::16",
-      "kavlan-6": "2001:660:4406:592:d::16",
-      "kavlan-7": "2001:660:4406:593:d::16",
-      "kavlan-8": "2001:660:4406:594:d::16",
-      "kavlan-9": "2001:660:4406:595:d::16"
+      "kavlan-1": "2001:660:4406:580:d:0::16",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::16",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::16",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::16",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::16",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::16",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::16",
+      "kavlan-2": "2001:660:4406:581:d:0::16",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::16",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::16",
+      "kavlan-3": "2001:660:4406:582:d:0::16",
+      "kavlan-4": "2001:660:4406:590:d:0::16",
+      "kavlan-5": "2001:660:4406:591:d:0::16",
+      "kavlan-6": "2001:660:4406:592:d:0::16",
+      "kavlan-7": "2001:660:4406:593:d:0::16",
+      "kavlan-8": "2001:660:4406:594:d:0::16",
+      "kavlan-9": "2001:660:4406:595:d:0::16"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.22",
-      "ip6": "2001:660:4406:500:d::16",
+      "ip6": "2001:660:4406:500:d:0::16",
       "kavlan": true,
       "mac": "3c:fd:fe:57:a5:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json
index 46d15ecaf4a..84a3879bf35 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::17",
-      "kavlan-11": "2001:660:4406:1a0:50d::17",
-      "kavlan-12": "2001:660:4406:2a0:50d::17",
-      "kavlan-13": "2001:660:4406:4a0:50d::17",
-      "kavlan-14": "2001:660:4406:5a0:50d::17",
-      "kavlan-16": "2001:660:4406:7a0:50d::17",
-      "kavlan-18": "2001:660:4406:8a0:50d::17",
-      "kavlan-2": "2001:660:4406:581:d::17",
-      "kavlan-20": "2001:660:4406:3a0:50d::17",
-      "kavlan-21": "2001:660:4406:6a0:50d::17",
-      "kavlan-3": "2001:660:4406:582:d::17",
-      "kavlan-4": "2001:660:4406:590:d::17",
-      "kavlan-5": "2001:660:4406:591:d::17",
-      "kavlan-6": "2001:660:4406:592:d::17",
-      "kavlan-7": "2001:660:4406:593:d::17",
-      "kavlan-8": "2001:660:4406:594:d::17",
-      "kavlan-9": "2001:660:4406:595:d::17"
+      "kavlan-1": "2001:660:4406:580:d:0::17",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::17",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::17",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::17",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::17",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::17",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::17",
+      "kavlan-2": "2001:660:4406:581:d:0::17",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::17",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::17",
+      "kavlan-3": "2001:660:4406:582:d:0::17",
+      "kavlan-4": "2001:660:4406:590:d:0::17",
+      "kavlan-5": "2001:660:4406:591:d:0::17",
+      "kavlan-6": "2001:660:4406:592:d:0::17",
+      "kavlan-7": "2001:660:4406:593:d:0::17",
+      "kavlan-8": "2001:660:4406:594:d:0::17",
+      "kavlan-9": "2001:660:4406:595:d:0::17"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.23",
-      "ip6": "2001:660:4406:500:d::17",
+      "ip6": "2001:660:4406:500:d:0::17",
       "kavlan": true,
       "mac": "3c:fd:fe:57:a0:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json
index 8ad89c1a049..85742d3ed38 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::18",
-      "kavlan-11": "2001:660:4406:1a0:50d::18",
-      "kavlan-12": "2001:660:4406:2a0:50d::18",
-      "kavlan-13": "2001:660:4406:4a0:50d::18",
-      "kavlan-14": "2001:660:4406:5a0:50d::18",
-      "kavlan-16": "2001:660:4406:7a0:50d::18",
-      "kavlan-18": "2001:660:4406:8a0:50d::18",
-      "kavlan-2": "2001:660:4406:581:d::18",
-      "kavlan-20": "2001:660:4406:3a0:50d::18",
-      "kavlan-21": "2001:660:4406:6a0:50d::18",
-      "kavlan-3": "2001:660:4406:582:d::18",
-      "kavlan-4": "2001:660:4406:590:d::18",
-      "kavlan-5": "2001:660:4406:591:d::18",
-      "kavlan-6": "2001:660:4406:592:d::18",
-      "kavlan-7": "2001:660:4406:593:d::18",
-      "kavlan-8": "2001:660:4406:594:d::18",
-      "kavlan-9": "2001:660:4406:595:d::18"
+      "kavlan-1": "2001:660:4406:580:d:0::18",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::18",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::18",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::18",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::18",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::18",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::18",
+      "kavlan-2": "2001:660:4406:581:d:0::18",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::18",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::18",
+      "kavlan-3": "2001:660:4406:582:d:0::18",
+      "kavlan-4": "2001:660:4406:590:d:0::18",
+      "kavlan-5": "2001:660:4406:591:d:0::18",
+      "kavlan-6": "2001:660:4406:592:d:0::18",
+      "kavlan-7": "2001:660:4406:593:d:0::18",
+      "kavlan-8": "2001:660:4406:594:d:0::18",
+      "kavlan-9": "2001:660:4406:595:d:0::18"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.24",
-      "ip6": "2001:660:4406:500:d::18",
+      "ip6": "2001:660:4406:500:d:0::18",
       "kavlan": true,
       "mac": "3c:fd:fe:57:d0:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json
index fd9ae290b85..d9d63758a1a 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::19",
-      "kavlan-11": "2001:660:4406:1a0:50d::19",
-      "kavlan-12": "2001:660:4406:2a0:50d::19",
-      "kavlan-13": "2001:660:4406:4a0:50d::19",
-      "kavlan-14": "2001:660:4406:5a0:50d::19",
-      "kavlan-16": "2001:660:4406:7a0:50d::19",
-      "kavlan-18": "2001:660:4406:8a0:50d::19",
-      "kavlan-2": "2001:660:4406:581:d::19",
-      "kavlan-20": "2001:660:4406:3a0:50d::19",
-      "kavlan-21": "2001:660:4406:6a0:50d::19",
-      "kavlan-3": "2001:660:4406:582:d::19",
-      "kavlan-4": "2001:660:4406:590:d::19",
-      "kavlan-5": "2001:660:4406:591:d::19",
-      "kavlan-6": "2001:660:4406:592:d::19",
-      "kavlan-7": "2001:660:4406:593:d::19",
-      "kavlan-8": "2001:660:4406:594:d::19",
-      "kavlan-9": "2001:660:4406:595:d::19"
+      "kavlan-1": "2001:660:4406:580:d:0::19",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::19",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::19",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::19",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::19",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::19",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::19",
+      "kavlan-2": "2001:660:4406:581:d:0::19",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::19",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::19",
+      "kavlan-3": "2001:660:4406:582:d:0::19",
+      "kavlan-4": "2001:660:4406:590:d:0::19",
+      "kavlan-5": "2001:660:4406:591:d:0::19",
+      "kavlan-6": "2001:660:4406:592:d:0::19",
+      "kavlan-7": "2001:660:4406:593:d:0::19",
+      "kavlan-8": "2001:660:4406:594:d:0::19",
+      "kavlan-9": "2001:660:4406:595:d:0::19"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.25",
-      "ip6": "2001:660:4406:500:d::19",
+      "ip6": "2001:660:4406:500:d:0::19",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1a:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json
index ee0c2c672e7..5107bb6db13 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-26.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::1a",
-      "kavlan-11": "2001:660:4406:1a0:50d::1a",
-      "kavlan-12": "2001:660:4406:2a0:50d::1a",
-      "kavlan-13": "2001:660:4406:4a0:50d::1a",
-      "kavlan-14": "2001:660:4406:5a0:50d::1a",
-      "kavlan-16": "2001:660:4406:7a0:50d::1a",
-      "kavlan-18": "2001:660:4406:8a0:50d::1a",
-      "kavlan-2": "2001:660:4406:581:d::1a",
-      "kavlan-20": "2001:660:4406:3a0:50d::1a",
-      "kavlan-21": "2001:660:4406:6a0:50d::1a",
-      "kavlan-3": "2001:660:4406:582:d::1a",
-      "kavlan-4": "2001:660:4406:590:d::1a",
-      "kavlan-5": "2001:660:4406:591:d::1a",
-      "kavlan-6": "2001:660:4406:592:d::1a",
-      "kavlan-7": "2001:660:4406:593:d::1a",
-      "kavlan-8": "2001:660:4406:594:d::1a",
-      "kavlan-9": "2001:660:4406:595:d::1a"
+      "kavlan-1": "2001:660:4406:580:d:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::1a",
+      "kavlan-2": "2001:660:4406:581:d:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::1a",
+      "kavlan-3": "2001:660:4406:582:d:0::1a",
+      "kavlan-4": "2001:660:4406:590:d:0::1a",
+      "kavlan-5": "2001:660:4406:591:d:0::1a",
+      "kavlan-6": "2001:660:4406:592:d:0::1a",
+      "kavlan-7": "2001:660:4406:593:d:0::1a",
+      "kavlan-8": "2001:660:4406:594:d:0::1a",
+      "kavlan-9": "2001:660:4406:595:d:0::1a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.26",
-      "ip6": "2001:660:4406:500:d::1a",
+      "ip6": "2001:660:4406:500:d:0::1a",
       "kavlan": true,
       "mac": "3c:fd:fe:59:2c:f0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json
index 904601984ab..73bcedd89ee 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::1b",
-      "kavlan-11": "2001:660:4406:1a0:50d::1b",
-      "kavlan-12": "2001:660:4406:2a0:50d::1b",
-      "kavlan-13": "2001:660:4406:4a0:50d::1b",
-      "kavlan-14": "2001:660:4406:5a0:50d::1b",
-      "kavlan-16": "2001:660:4406:7a0:50d::1b",
-      "kavlan-18": "2001:660:4406:8a0:50d::1b",
-      "kavlan-2": "2001:660:4406:581:d::1b",
-      "kavlan-20": "2001:660:4406:3a0:50d::1b",
-      "kavlan-21": "2001:660:4406:6a0:50d::1b",
-      "kavlan-3": "2001:660:4406:582:d::1b",
-      "kavlan-4": "2001:660:4406:590:d::1b",
-      "kavlan-5": "2001:660:4406:591:d::1b",
-      "kavlan-6": "2001:660:4406:592:d::1b",
-      "kavlan-7": "2001:660:4406:593:d::1b",
-      "kavlan-8": "2001:660:4406:594:d::1b",
-      "kavlan-9": "2001:660:4406:595:d::1b"
+      "kavlan-1": "2001:660:4406:580:d:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::1b",
+      "kavlan-2": "2001:660:4406:581:d:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::1b",
+      "kavlan-3": "2001:660:4406:582:d:0::1b",
+      "kavlan-4": "2001:660:4406:590:d:0::1b",
+      "kavlan-5": "2001:660:4406:591:d:0::1b",
+      "kavlan-6": "2001:660:4406:592:d:0::1b",
+      "kavlan-7": "2001:660:4406:593:d:0::1b",
+      "kavlan-8": "2001:660:4406:594:d:0::1b",
+      "kavlan-9": "2001:660:4406:595:d:0::1b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.27",
-      "ip6": "2001:660:4406:500:d::1b",
+      "ip6": "2001:660:4406:500:d:0::1b",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1a:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-28.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-28.json
index 90513506dae..28f74de323b 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-28.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::1c",
-      "kavlan-11": "2001:660:4406:1a0:50d::1c",
-      "kavlan-12": "2001:660:4406:2a0:50d::1c",
-      "kavlan-13": "2001:660:4406:4a0:50d::1c",
-      "kavlan-14": "2001:660:4406:5a0:50d::1c",
-      "kavlan-16": "2001:660:4406:7a0:50d::1c",
-      "kavlan-18": "2001:660:4406:8a0:50d::1c",
-      "kavlan-2": "2001:660:4406:581:d::1c",
-      "kavlan-20": "2001:660:4406:3a0:50d::1c",
-      "kavlan-21": "2001:660:4406:6a0:50d::1c",
-      "kavlan-3": "2001:660:4406:582:d::1c",
-      "kavlan-4": "2001:660:4406:590:d::1c",
-      "kavlan-5": "2001:660:4406:591:d::1c",
-      "kavlan-6": "2001:660:4406:592:d::1c",
-      "kavlan-7": "2001:660:4406:593:d::1c",
-      "kavlan-8": "2001:660:4406:594:d::1c",
-      "kavlan-9": "2001:660:4406:595:d::1c"
+      "kavlan-1": "2001:660:4406:580:d:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::1c",
+      "kavlan-2": "2001:660:4406:581:d:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::1c",
+      "kavlan-3": "2001:660:4406:582:d:0::1c",
+      "kavlan-4": "2001:660:4406:590:d:0::1c",
+      "kavlan-5": "2001:660:4406:591:d:0::1c",
+      "kavlan-6": "2001:660:4406:592:d:0::1c",
+      "kavlan-7": "2001:660:4406:593:d:0::1c",
+      "kavlan-8": "2001:660:4406:594:d:0::1c",
+      "kavlan-9": "2001:660:4406:595:d:0::1c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.28",
-      "ip6": "2001:660:4406:500:d::1c",
+      "ip6": "2001:660:4406:500:d:0::1c",
       "kavlan": true,
       "mac": "3c:fd:fe:59:36:b0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-29.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-29.json
index 35072022da8..27df55b336c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-29.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::1d",
-      "kavlan-11": "2001:660:4406:1a0:50d::1d",
-      "kavlan-12": "2001:660:4406:2a0:50d::1d",
-      "kavlan-13": "2001:660:4406:4a0:50d::1d",
-      "kavlan-14": "2001:660:4406:5a0:50d::1d",
-      "kavlan-16": "2001:660:4406:7a0:50d::1d",
-      "kavlan-18": "2001:660:4406:8a0:50d::1d",
-      "kavlan-2": "2001:660:4406:581:d::1d",
-      "kavlan-20": "2001:660:4406:3a0:50d::1d",
-      "kavlan-21": "2001:660:4406:6a0:50d::1d",
-      "kavlan-3": "2001:660:4406:582:d::1d",
-      "kavlan-4": "2001:660:4406:590:d::1d",
-      "kavlan-5": "2001:660:4406:591:d::1d",
-      "kavlan-6": "2001:660:4406:592:d::1d",
-      "kavlan-7": "2001:660:4406:593:d::1d",
-      "kavlan-8": "2001:660:4406:594:d::1d",
-      "kavlan-9": "2001:660:4406:595:d::1d"
+      "kavlan-1": "2001:660:4406:580:d:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::1d",
+      "kavlan-2": "2001:660:4406:581:d:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::1d",
+      "kavlan-3": "2001:660:4406:582:d:0::1d",
+      "kavlan-4": "2001:660:4406:590:d:0::1d",
+      "kavlan-5": "2001:660:4406:591:d:0::1d",
+      "kavlan-6": "2001:660:4406:592:d:0::1d",
+      "kavlan-7": "2001:660:4406:593:d:0::1d",
+      "kavlan-8": "2001:660:4406:594:d:0::1d",
+      "kavlan-9": "2001:660:4406:595:d:0::1d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.29",
-      "ip6": "2001:660:4406:500:d::1d",
+      "ip6": "2001:660:4406:500:d:0::1d",
       "kavlan": true,
       "mac": "3c:fd:fe:58:03:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-3.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-3.json
index 048e16090b1..9f63c23c6f9 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-3.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::3",
-      "kavlan-11": "2001:660:4406:1a0:50d::3",
-      "kavlan-12": "2001:660:4406:2a0:50d::3",
-      "kavlan-13": "2001:660:4406:4a0:50d::3",
-      "kavlan-14": "2001:660:4406:5a0:50d::3",
-      "kavlan-16": "2001:660:4406:7a0:50d::3",
-      "kavlan-18": "2001:660:4406:8a0:50d::3",
-      "kavlan-2": "2001:660:4406:581:d::3",
-      "kavlan-20": "2001:660:4406:3a0:50d::3",
-      "kavlan-21": "2001:660:4406:6a0:50d::3",
-      "kavlan-3": "2001:660:4406:582:d::3",
-      "kavlan-4": "2001:660:4406:590:d::3",
-      "kavlan-5": "2001:660:4406:591:d::3",
-      "kavlan-6": "2001:660:4406:592:d::3",
-      "kavlan-7": "2001:660:4406:593:d::3",
-      "kavlan-8": "2001:660:4406:594:d::3",
-      "kavlan-9": "2001:660:4406:595:d::3"
+      "kavlan-1": "2001:660:4406:580:d:0::3",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::3",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::3",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::3",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::3",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::3",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::3",
+      "kavlan-2": "2001:660:4406:581:d:0::3",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::3",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::3",
+      "kavlan-3": "2001:660:4406:582:d:0::3",
+      "kavlan-4": "2001:660:4406:590:d:0::3",
+      "kavlan-5": "2001:660:4406:591:d:0::3",
+      "kavlan-6": "2001:660:4406:592:d:0::3",
+      "kavlan-7": "2001:660:4406:593:d:0::3",
+      "kavlan-8": "2001:660:4406:594:d:0::3",
+      "kavlan-9": "2001:660:4406:595:d:0::3"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.3",
-      "ip6": "2001:660:4406:500:d::3",
+      "ip6": "2001:660:4406:500:d:0::3",
       "kavlan": true,
       "mac": "3c:fd:fe:58:12:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-30.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-30.json
index fa1f6852926..0b222933bd4 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-30.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::1e",
-      "kavlan-11": "2001:660:4406:1a0:50d::1e",
-      "kavlan-12": "2001:660:4406:2a0:50d::1e",
-      "kavlan-13": "2001:660:4406:4a0:50d::1e",
-      "kavlan-14": "2001:660:4406:5a0:50d::1e",
-      "kavlan-16": "2001:660:4406:7a0:50d::1e",
-      "kavlan-18": "2001:660:4406:8a0:50d::1e",
-      "kavlan-2": "2001:660:4406:581:d::1e",
-      "kavlan-20": "2001:660:4406:3a0:50d::1e",
-      "kavlan-21": "2001:660:4406:6a0:50d::1e",
-      "kavlan-3": "2001:660:4406:582:d::1e",
-      "kavlan-4": "2001:660:4406:590:d::1e",
-      "kavlan-5": "2001:660:4406:591:d::1e",
-      "kavlan-6": "2001:660:4406:592:d::1e",
-      "kavlan-7": "2001:660:4406:593:d::1e",
-      "kavlan-8": "2001:660:4406:594:d::1e",
-      "kavlan-9": "2001:660:4406:595:d::1e"
+      "kavlan-1": "2001:660:4406:580:d:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::1e",
+      "kavlan-2": "2001:660:4406:581:d:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::1e",
+      "kavlan-3": "2001:660:4406:582:d:0::1e",
+      "kavlan-4": "2001:660:4406:590:d:0::1e",
+      "kavlan-5": "2001:660:4406:591:d:0::1e",
+      "kavlan-6": "2001:660:4406:592:d:0::1e",
+      "kavlan-7": "2001:660:4406:593:d:0::1e",
+      "kavlan-8": "2001:660:4406:594:d:0::1e",
+      "kavlan-9": "2001:660:4406:595:d:0::1e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.30",
-      "ip6": "2001:660:4406:500:d::1e",
+      "ip6": "2001:660:4406:500:d:0::1e",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1f:50",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-31.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-31.json
index 511e3578de2..a500b8201d1 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-31.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::1f",
-      "kavlan-11": "2001:660:4406:1a0:50d::1f",
-      "kavlan-12": "2001:660:4406:2a0:50d::1f",
-      "kavlan-13": "2001:660:4406:4a0:50d::1f",
-      "kavlan-14": "2001:660:4406:5a0:50d::1f",
-      "kavlan-16": "2001:660:4406:7a0:50d::1f",
-      "kavlan-18": "2001:660:4406:8a0:50d::1f",
-      "kavlan-2": "2001:660:4406:581:d::1f",
-      "kavlan-20": "2001:660:4406:3a0:50d::1f",
-      "kavlan-21": "2001:660:4406:6a0:50d::1f",
-      "kavlan-3": "2001:660:4406:582:d::1f",
-      "kavlan-4": "2001:660:4406:590:d::1f",
-      "kavlan-5": "2001:660:4406:591:d::1f",
-      "kavlan-6": "2001:660:4406:592:d::1f",
-      "kavlan-7": "2001:660:4406:593:d::1f",
-      "kavlan-8": "2001:660:4406:594:d::1f",
-      "kavlan-9": "2001:660:4406:595:d::1f"
+      "kavlan-1": "2001:660:4406:580:d:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::1f",
+      "kavlan-2": "2001:660:4406:581:d:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::1f",
+      "kavlan-3": "2001:660:4406:582:d:0::1f",
+      "kavlan-4": "2001:660:4406:590:d:0::1f",
+      "kavlan-5": "2001:660:4406:591:d:0::1f",
+      "kavlan-6": "2001:660:4406:592:d:0::1f",
+      "kavlan-7": "2001:660:4406:593:d:0::1f",
+      "kavlan-8": "2001:660:4406:594:d:0::1f",
+      "kavlan-9": "2001:660:4406:595:d:0::1f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.31",
-      "ip6": "2001:660:4406:500:d::1f",
+      "ip6": "2001:660:4406:500:d:0::1f",
       "kavlan": true,
       "mac": "3c:fd:fe:56:e6:80",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-32.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-32.json
index d0fd002d1b1..20636aa522a 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-32.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::20",
-      "kavlan-11": "2001:660:4406:1a0:50d::20",
-      "kavlan-12": "2001:660:4406:2a0:50d::20",
-      "kavlan-13": "2001:660:4406:4a0:50d::20",
-      "kavlan-14": "2001:660:4406:5a0:50d::20",
-      "kavlan-16": "2001:660:4406:7a0:50d::20",
-      "kavlan-18": "2001:660:4406:8a0:50d::20",
-      "kavlan-2": "2001:660:4406:581:d::20",
-      "kavlan-20": "2001:660:4406:3a0:50d::20",
-      "kavlan-21": "2001:660:4406:6a0:50d::20",
-      "kavlan-3": "2001:660:4406:582:d::20",
-      "kavlan-4": "2001:660:4406:590:d::20",
-      "kavlan-5": "2001:660:4406:591:d::20",
-      "kavlan-6": "2001:660:4406:592:d::20",
-      "kavlan-7": "2001:660:4406:593:d::20",
-      "kavlan-8": "2001:660:4406:594:d::20",
-      "kavlan-9": "2001:660:4406:595:d::20"
+      "kavlan-1": "2001:660:4406:580:d:0::20",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::20",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::20",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::20",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::20",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::20",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::20",
+      "kavlan-2": "2001:660:4406:581:d:0::20",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::20",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::20",
+      "kavlan-3": "2001:660:4406:582:d:0::20",
+      "kavlan-4": "2001:660:4406:590:d:0::20",
+      "kavlan-5": "2001:660:4406:591:d:0::20",
+      "kavlan-6": "2001:660:4406:592:d:0::20",
+      "kavlan-7": "2001:660:4406:593:d:0::20",
+      "kavlan-8": "2001:660:4406:594:d:0::20",
+      "kavlan-9": "2001:660:4406:595:d:0::20"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.32",
-      "ip6": "2001:660:4406:500:d::20",
+      "ip6": "2001:660:4406:500:d:0::20",
       "kavlan": true,
       "mac": "3c:fd:fe:58:03:b8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-33.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-33.json
index 1257bc8c72a..7ae599376ba 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-33.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-33.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::21",
-      "kavlan-11": "2001:660:4406:1a0:50d::21",
-      "kavlan-12": "2001:660:4406:2a0:50d::21",
-      "kavlan-13": "2001:660:4406:4a0:50d::21",
-      "kavlan-14": "2001:660:4406:5a0:50d::21",
-      "kavlan-16": "2001:660:4406:7a0:50d::21",
-      "kavlan-18": "2001:660:4406:8a0:50d::21",
-      "kavlan-2": "2001:660:4406:581:d::21",
-      "kavlan-20": "2001:660:4406:3a0:50d::21",
-      "kavlan-21": "2001:660:4406:6a0:50d::21",
-      "kavlan-3": "2001:660:4406:582:d::21",
-      "kavlan-4": "2001:660:4406:590:d::21",
-      "kavlan-5": "2001:660:4406:591:d::21",
-      "kavlan-6": "2001:660:4406:592:d::21",
-      "kavlan-7": "2001:660:4406:593:d::21",
-      "kavlan-8": "2001:660:4406:594:d::21",
-      "kavlan-9": "2001:660:4406:595:d::21"
+      "kavlan-1": "2001:660:4406:580:d:0::21",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::21",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::21",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::21",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::21",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::21",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::21",
+      "kavlan-2": "2001:660:4406:581:d:0::21",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::21",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::21",
+      "kavlan-3": "2001:660:4406:582:d:0::21",
+      "kavlan-4": "2001:660:4406:590:d:0::21",
+      "kavlan-5": "2001:660:4406:591:d:0::21",
+      "kavlan-6": "2001:660:4406:592:d:0::21",
+      "kavlan-7": "2001:660:4406:593:d:0::21",
+      "kavlan-8": "2001:660:4406:594:d:0::21",
+      "kavlan-9": "2001:660:4406:595:d:0::21"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.33",
-      "ip6": "2001:660:4406:500:d::21",
+      "ip6": "2001:660:4406:500:d:0::21",
       "kavlan": true,
       "mac": "3c:fd:fe:59:19:90",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-34.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-34.json
index 5ae9e74d4a7..b3c5a8aecbc 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-34.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-34.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::22",
-      "kavlan-11": "2001:660:4406:1a0:50d::22",
-      "kavlan-12": "2001:660:4406:2a0:50d::22",
-      "kavlan-13": "2001:660:4406:4a0:50d::22",
-      "kavlan-14": "2001:660:4406:5a0:50d::22",
-      "kavlan-16": "2001:660:4406:7a0:50d::22",
-      "kavlan-18": "2001:660:4406:8a0:50d::22",
-      "kavlan-2": "2001:660:4406:581:d::22",
-      "kavlan-20": "2001:660:4406:3a0:50d::22",
-      "kavlan-21": "2001:660:4406:6a0:50d::22",
-      "kavlan-3": "2001:660:4406:582:d::22",
-      "kavlan-4": "2001:660:4406:590:d::22",
-      "kavlan-5": "2001:660:4406:591:d::22",
-      "kavlan-6": "2001:660:4406:592:d::22",
-      "kavlan-7": "2001:660:4406:593:d::22",
-      "kavlan-8": "2001:660:4406:594:d::22",
-      "kavlan-9": "2001:660:4406:595:d::22"
+      "kavlan-1": "2001:660:4406:580:d:0::22",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::22",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::22",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::22",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::22",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::22",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::22",
+      "kavlan-2": "2001:660:4406:581:d:0::22",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::22",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::22",
+      "kavlan-3": "2001:660:4406:582:d:0::22",
+      "kavlan-4": "2001:660:4406:590:d:0::22",
+      "kavlan-5": "2001:660:4406:591:d:0::22",
+      "kavlan-6": "2001:660:4406:592:d:0::22",
+      "kavlan-7": "2001:660:4406:593:d:0::22",
+      "kavlan-8": "2001:660:4406:594:d:0::22",
+      "kavlan-9": "2001:660:4406:595:d:0::22"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.34",
-      "ip6": "2001:660:4406:500:d::22",
+      "ip6": "2001:660:4406:500:d:0::22",
       "kavlan": true,
       "mac": "3c:fd:fe:58:1a:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-35.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-35.json
index ddb59d126f2..a3fac906062 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-35.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-35.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::23",
-      "kavlan-11": "2001:660:4406:1a0:50d::23",
-      "kavlan-12": "2001:660:4406:2a0:50d::23",
-      "kavlan-13": "2001:660:4406:4a0:50d::23",
-      "kavlan-14": "2001:660:4406:5a0:50d::23",
-      "kavlan-16": "2001:660:4406:7a0:50d::23",
-      "kavlan-18": "2001:660:4406:8a0:50d::23",
-      "kavlan-2": "2001:660:4406:581:d::23",
-      "kavlan-20": "2001:660:4406:3a0:50d::23",
-      "kavlan-21": "2001:660:4406:6a0:50d::23",
-      "kavlan-3": "2001:660:4406:582:d::23",
-      "kavlan-4": "2001:660:4406:590:d::23",
-      "kavlan-5": "2001:660:4406:591:d::23",
-      "kavlan-6": "2001:660:4406:592:d::23",
-      "kavlan-7": "2001:660:4406:593:d::23",
-      "kavlan-8": "2001:660:4406:594:d::23",
-      "kavlan-9": "2001:660:4406:595:d::23"
+      "kavlan-1": "2001:660:4406:580:d:0::23",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::23",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::23",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::23",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::23",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::23",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::23",
+      "kavlan-2": "2001:660:4406:581:d:0::23",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::23",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::23",
+      "kavlan-3": "2001:660:4406:582:d:0::23",
+      "kavlan-4": "2001:660:4406:590:d:0::23",
+      "kavlan-5": "2001:660:4406:591:d:0::23",
+      "kavlan-6": "2001:660:4406:592:d:0::23",
+      "kavlan-7": "2001:660:4406:593:d:0::23",
+      "kavlan-8": "2001:660:4406:594:d:0::23",
+      "kavlan-9": "2001:660:4406:595:d:0::23"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.35",
-      "ip6": "2001:660:4406:500:d::23",
+      "ip6": "2001:660:4406:500:d:0::23",
       "kavlan": true,
       "mac": "3c:fd:fe:57:ed:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-36.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-36.json
index a0eb2e6876c..6baa8ee7c82 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-36.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-36.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::24",
-      "kavlan-11": "2001:660:4406:1a0:50d::24",
-      "kavlan-12": "2001:660:4406:2a0:50d::24",
-      "kavlan-13": "2001:660:4406:4a0:50d::24",
-      "kavlan-14": "2001:660:4406:5a0:50d::24",
-      "kavlan-16": "2001:660:4406:7a0:50d::24",
-      "kavlan-18": "2001:660:4406:8a0:50d::24",
-      "kavlan-2": "2001:660:4406:581:d::24",
-      "kavlan-20": "2001:660:4406:3a0:50d::24",
-      "kavlan-21": "2001:660:4406:6a0:50d::24",
-      "kavlan-3": "2001:660:4406:582:d::24",
-      "kavlan-4": "2001:660:4406:590:d::24",
-      "kavlan-5": "2001:660:4406:591:d::24",
-      "kavlan-6": "2001:660:4406:592:d::24",
-      "kavlan-7": "2001:660:4406:593:d::24",
-      "kavlan-8": "2001:660:4406:594:d::24",
-      "kavlan-9": "2001:660:4406:595:d::24"
+      "kavlan-1": "2001:660:4406:580:d:0::24",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::24",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::24",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::24",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::24",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::24",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::24",
+      "kavlan-2": "2001:660:4406:581:d:0::24",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::24",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::24",
+      "kavlan-3": "2001:660:4406:582:d:0::24",
+      "kavlan-4": "2001:660:4406:590:d:0::24",
+      "kavlan-5": "2001:660:4406:591:d:0::24",
+      "kavlan-6": "2001:660:4406:592:d:0::24",
+      "kavlan-7": "2001:660:4406:593:d:0::24",
+      "kavlan-8": "2001:660:4406:594:d:0::24",
+      "kavlan-9": "2001:660:4406:595:d:0::24"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.36",
-      "ip6": "2001:660:4406:500:d::24",
+      "ip6": "2001:660:4406:500:d:0::24",
       "kavlan": true,
       "mac": "3c:fd:fe:59:2e:70",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-37.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-37.json
index 158401162db..fb712e0d7dd 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-37.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-37.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::25",
-      "kavlan-11": "2001:660:4406:1a0:50d::25",
-      "kavlan-12": "2001:660:4406:2a0:50d::25",
-      "kavlan-13": "2001:660:4406:4a0:50d::25",
-      "kavlan-14": "2001:660:4406:5a0:50d::25",
-      "kavlan-16": "2001:660:4406:7a0:50d::25",
-      "kavlan-18": "2001:660:4406:8a0:50d::25",
-      "kavlan-2": "2001:660:4406:581:d::25",
-      "kavlan-20": "2001:660:4406:3a0:50d::25",
-      "kavlan-21": "2001:660:4406:6a0:50d::25",
-      "kavlan-3": "2001:660:4406:582:d::25",
-      "kavlan-4": "2001:660:4406:590:d::25",
-      "kavlan-5": "2001:660:4406:591:d::25",
-      "kavlan-6": "2001:660:4406:592:d::25",
-      "kavlan-7": "2001:660:4406:593:d::25",
-      "kavlan-8": "2001:660:4406:594:d::25",
-      "kavlan-9": "2001:660:4406:595:d::25"
+      "kavlan-1": "2001:660:4406:580:d:0::25",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::25",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::25",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::25",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::25",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::25",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::25",
+      "kavlan-2": "2001:660:4406:581:d:0::25",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::25",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::25",
+      "kavlan-3": "2001:660:4406:582:d:0::25",
+      "kavlan-4": "2001:660:4406:590:d:0::25",
+      "kavlan-5": "2001:660:4406:591:d:0::25",
+      "kavlan-6": "2001:660:4406:592:d:0::25",
+      "kavlan-7": "2001:660:4406:593:d:0::25",
+      "kavlan-8": "2001:660:4406:594:d:0::25",
+      "kavlan-9": "2001:660:4406:595:d:0::25"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.37",
-      "ip6": "2001:660:4406:500:d::25",
+      "ip6": "2001:660:4406:500:d:0::25",
       "kavlan": true,
       "mac": "3c:fd:fe:57:69:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-38.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-38.json
index b1ef25ea668..54afeeb8d1d 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-38.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-38.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::26",
-      "kavlan-11": "2001:660:4406:1a0:50d::26",
-      "kavlan-12": "2001:660:4406:2a0:50d::26",
-      "kavlan-13": "2001:660:4406:4a0:50d::26",
-      "kavlan-14": "2001:660:4406:5a0:50d::26",
-      "kavlan-16": "2001:660:4406:7a0:50d::26",
-      "kavlan-18": "2001:660:4406:8a0:50d::26",
-      "kavlan-2": "2001:660:4406:581:d::26",
-      "kavlan-20": "2001:660:4406:3a0:50d::26",
-      "kavlan-21": "2001:660:4406:6a0:50d::26",
-      "kavlan-3": "2001:660:4406:582:d::26",
-      "kavlan-4": "2001:660:4406:590:d::26",
-      "kavlan-5": "2001:660:4406:591:d::26",
-      "kavlan-6": "2001:660:4406:592:d::26",
-      "kavlan-7": "2001:660:4406:593:d::26",
-      "kavlan-8": "2001:660:4406:594:d::26",
-      "kavlan-9": "2001:660:4406:595:d::26"
+      "kavlan-1": "2001:660:4406:580:d:0::26",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::26",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::26",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::26",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::26",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::26",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::26",
+      "kavlan-2": "2001:660:4406:581:d:0::26",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::26",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::26",
+      "kavlan-3": "2001:660:4406:582:d:0::26",
+      "kavlan-4": "2001:660:4406:590:d:0::26",
+      "kavlan-5": "2001:660:4406:591:d:0::26",
+      "kavlan-6": "2001:660:4406:592:d:0::26",
+      "kavlan-7": "2001:660:4406:593:d:0::26",
+      "kavlan-8": "2001:660:4406:594:d:0::26",
+      "kavlan-9": "2001:660:4406:595:d:0::26"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.38",
-      "ip6": "2001:660:4406:500:d::26",
+      "ip6": "2001:660:4406:500:d:0::26",
       "kavlan": true,
       "mac": "3c:fd:fe:57:78:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-39.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-39.json
index 792845bccbf..ff343d55a39 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-39.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-39.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::27",
-      "kavlan-11": "2001:660:4406:1a0:50d::27",
-      "kavlan-12": "2001:660:4406:2a0:50d::27",
-      "kavlan-13": "2001:660:4406:4a0:50d::27",
-      "kavlan-14": "2001:660:4406:5a0:50d::27",
-      "kavlan-16": "2001:660:4406:7a0:50d::27",
-      "kavlan-18": "2001:660:4406:8a0:50d::27",
-      "kavlan-2": "2001:660:4406:581:d::27",
-      "kavlan-20": "2001:660:4406:3a0:50d::27",
-      "kavlan-21": "2001:660:4406:6a0:50d::27",
-      "kavlan-3": "2001:660:4406:582:d::27",
-      "kavlan-4": "2001:660:4406:590:d::27",
-      "kavlan-5": "2001:660:4406:591:d::27",
-      "kavlan-6": "2001:660:4406:592:d::27",
-      "kavlan-7": "2001:660:4406:593:d::27",
-      "kavlan-8": "2001:660:4406:594:d::27",
-      "kavlan-9": "2001:660:4406:595:d::27"
+      "kavlan-1": "2001:660:4406:580:d:0::27",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::27",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::27",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::27",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::27",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::27",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::27",
+      "kavlan-2": "2001:660:4406:581:d:0::27",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::27",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::27",
+      "kavlan-3": "2001:660:4406:582:d:0::27",
+      "kavlan-4": "2001:660:4406:590:d:0::27",
+      "kavlan-5": "2001:660:4406:591:d:0::27",
+      "kavlan-6": "2001:660:4406:592:d:0::27",
+      "kavlan-7": "2001:660:4406:593:d:0::27",
+      "kavlan-8": "2001:660:4406:594:d:0::27",
+      "kavlan-9": "2001:660:4406:595:d:0::27"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.39",
-      "ip6": "2001:660:4406:500:d::27",
+      "ip6": "2001:660:4406:500:d:0::27",
       "kavlan": true,
       "mac": "3c:fd:fe:57:6c:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json
index 70106a9dc78..6ba9cd79796 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::4",
-      "kavlan-11": "2001:660:4406:1a0:50d::4",
-      "kavlan-12": "2001:660:4406:2a0:50d::4",
-      "kavlan-13": "2001:660:4406:4a0:50d::4",
-      "kavlan-14": "2001:660:4406:5a0:50d::4",
-      "kavlan-16": "2001:660:4406:7a0:50d::4",
-      "kavlan-18": "2001:660:4406:8a0:50d::4",
-      "kavlan-2": "2001:660:4406:581:d::4",
-      "kavlan-20": "2001:660:4406:3a0:50d::4",
-      "kavlan-21": "2001:660:4406:6a0:50d::4",
-      "kavlan-3": "2001:660:4406:582:d::4",
-      "kavlan-4": "2001:660:4406:590:d::4",
-      "kavlan-5": "2001:660:4406:591:d::4",
-      "kavlan-6": "2001:660:4406:592:d::4",
-      "kavlan-7": "2001:660:4406:593:d::4",
-      "kavlan-8": "2001:660:4406:594:d::4",
-      "kavlan-9": "2001:660:4406:595:d::4"
+      "kavlan-1": "2001:660:4406:580:d:0::4",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::4",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::4",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::4",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::4",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::4",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::4",
+      "kavlan-2": "2001:660:4406:581:d:0::4",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::4",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::4",
+      "kavlan-3": "2001:660:4406:582:d:0::4",
+      "kavlan-4": "2001:660:4406:590:d:0::4",
+      "kavlan-5": "2001:660:4406:591:d:0::4",
+      "kavlan-6": "2001:660:4406:592:d:0::4",
+      "kavlan-7": "2001:660:4406:593:d:0::4",
+      "kavlan-8": "2001:660:4406:594:d:0::4",
+      "kavlan-9": "2001:660:4406:595:d:0::4"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.4",
-      "ip6": "2001:660:4406:500:d::4",
+      "ip6": "2001:660:4406:500:d:0::4",
       "kavlan": true,
       "mac": "3c:fd:fe:58:1a:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-40.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-40.json
index 394bf45a112..363b0c6ab67 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-40.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-40.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::28",
-      "kavlan-11": "2001:660:4406:1a0:50d::28",
-      "kavlan-12": "2001:660:4406:2a0:50d::28",
-      "kavlan-13": "2001:660:4406:4a0:50d::28",
-      "kavlan-14": "2001:660:4406:5a0:50d::28",
-      "kavlan-16": "2001:660:4406:7a0:50d::28",
-      "kavlan-18": "2001:660:4406:8a0:50d::28",
-      "kavlan-2": "2001:660:4406:581:d::28",
-      "kavlan-20": "2001:660:4406:3a0:50d::28",
-      "kavlan-21": "2001:660:4406:6a0:50d::28",
-      "kavlan-3": "2001:660:4406:582:d::28",
-      "kavlan-4": "2001:660:4406:590:d::28",
-      "kavlan-5": "2001:660:4406:591:d::28",
-      "kavlan-6": "2001:660:4406:592:d::28",
-      "kavlan-7": "2001:660:4406:593:d::28",
-      "kavlan-8": "2001:660:4406:594:d::28",
-      "kavlan-9": "2001:660:4406:595:d::28"
+      "kavlan-1": "2001:660:4406:580:d:0::28",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::28",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::28",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::28",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::28",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::28",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::28",
+      "kavlan-2": "2001:660:4406:581:d:0::28",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::28",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::28",
+      "kavlan-3": "2001:660:4406:582:d:0::28",
+      "kavlan-4": "2001:660:4406:590:d:0::28",
+      "kavlan-5": "2001:660:4406:591:d:0::28",
+      "kavlan-6": "2001:660:4406:592:d:0::28",
+      "kavlan-7": "2001:660:4406:593:d:0::28",
+      "kavlan-8": "2001:660:4406:594:d:0::28",
+      "kavlan-9": "2001:660:4406:595:d:0::28"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.40",
-      "ip6": "2001:660:4406:500:d::28",
+      "ip6": "2001:660:4406:500:d:0::28",
       "kavlan": true,
       "mac": "3c:fd:fe:57:64:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-41.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-41.json
index f3842d4685e..02ebd0a4238 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-41.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-41.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::29",
-      "kavlan-11": "2001:660:4406:1a0:50d::29",
-      "kavlan-12": "2001:660:4406:2a0:50d::29",
-      "kavlan-13": "2001:660:4406:4a0:50d::29",
-      "kavlan-14": "2001:660:4406:5a0:50d::29",
-      "kavlan-16": "2001:660:4406:7a0:50d::29",
-      "kavlan-18": "2001:660:4406:8a0:50d::29",
-      "kavlan-2": "2001:660:4406:581:d::29",
-      "kavlan-20": "2001:660:4406:3a0:50d::29",
-      "kavlan-21": "2001:660:4406:6a0:50d::29",
-      "kavlan-3": "2001:660:4406:582:d::29",
-      "kavlan-4": "2001:660:4406:590:d::29",
-      "kavlan-5": "2001:660:4406:591:d::29",
-      "kavlan-6": "2001:660:4406:592:d::29",
-      "kavlan-7": "2001:660:4406:593:d::29",
-      "kavlan-8": "2001:660:4406:594:d::29",
-      "kavlan-9": "2001:660:4406:595:d::29"
+      "kavlan-1": "2001:660:4406:580:d:0::29",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::29",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::29",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::29",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::29",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::29",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::29",
+      "kavlan-2": "2001:660:4406:581:d:0::29",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::29",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::29",
+      "kavlan-3": "2001:660:4406:582:d:0::29",
+      "kavlan-4": "2001:660:4406:590:d:0::29",
+      "kavlan-5": "2001:660:4406:591:d:0::29",
+      "kavlan-6": "2001:660:4406:592:d:0::29",
+      "kavlan-7": "2001:660:4406:593:d:0::29",
+      "kavlan-8": "2001:660:4406:594:d:0::29",
+      "kavlan-9": "2001:660:4406:595:d:0::29"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.41",
-      "ip6": "2001:660:4406:500:d::29",
+      "ip6": "2001:660:4406:500:d:0::29",
       "kavlan": true,
       "mac": "3c:fd:fe:57:53:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-42.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-42.json
index 544a125dffb..2d0c26d19a9 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-42.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-42.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::2a",
-      "kavlan-11": "2001:660:4406:1a0:50d::2a",
-      "kavlan-12": "2001:660:4406:2a0:50d::2a",
-      "kavlan-13": "2001:660:4406:4a0:50d::2a",
-      "kavlan-14": "2001:660:4406:5a0:50d::2a",
-      "kavlan-16": "2001:660:4406:7a0:50d::2a",
-      "kavlan-18": "2001:660:4406:8a0:50d::2a",
-      "kavlan-2": "2001:660:4406:581:d::2a",
-      "kavlan-20": "2001:660:4406:3a0:50d::2a",
-      "kavlan-21": "2001:660:4406:6a0:50d::2a",
-      "kavlan-3": "2001:660:4406:582:d::2a",
-      "kavlan-4": "2001:660:4406:590:d::2a",
-      "kavlan-5": "2001:660:4406:591:d::2a",
-      "kavlan-6": "2001:660:4406:592:d::2a",
-      "kavlan-7": "2001:660:4406:593:d::2a",
-      "kavlan-8": "2001:660:4406:594:d::2a",
-      "kavlan-9": "2001:660:4406:595:d::2a"
+      "kavlan-1": "2001:660:4406:580:d:0::2a",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::2a",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::2a",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::2a",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::2a",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::2a",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::2a",
+      "kavlan-2": "2001:660:4406:581:d:0::2a",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::2a",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::2a",
+      "kavlan-3": "2001:660:4406:582:d:0::2a",
+      "kavlan-4": "2001:660:4406:590:d:0::2a",
+      "kavlan-5": "2001:660:4406:591:d:0::2a",
+      "kavlan-6": "2001:660:4406:592:d:0::2a",
+      "kavlan-7": "2001:660:4406:593:d:0::2a",
+      "kavlan-8": "2001:660:4406:594:d:0::2a",
+      "kavlan-9": "2001:660:4406:595:d:0::2a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.42",
-      "ip6": "2001:660:4406:500:d::2a",
+      "ip6": "2001:660:4406:500:d:0::2a",
       "kavlan": true,
       "mac": "3c:fd:fe:57:6b:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-43.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-43.json
index d5e2f758310..622a2162245 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-43.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-43.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::2b",
-      "kavlan-11": "2001:660:4406:1a0:50d::2b",
-      "kavlan-12": "2001:660:4406:2a0:50d::2b",
-      "kavlan-13": "2001:660:4406:4a0:50d::2b",
-      "kavlan-14": "2001:660:4406:5a0:50d::2b",
-      "kavlan-16": "2001:660:4406:7a0:50d::2b",
-      "kavlan-18": "2001:660:4406:8a0:50d::2b",
-      "kavlan-2": "2001:660:4406:581:d::2b",
-      "kavlan-20": "2001:660:4406:3a0:50d::2b",
-      "kavlan-21": "2001:660:4406:6a0:50d::2b",
-      "kavlan-3": "2001:660:4406:582:d::2b",
-      "kavlan-4": "2001:660:4406:590:d::2b",
-      "kavlan-5": "2001:660:4406:591:d::2b",
-      "kavlan-6": "2001:660:4406:592:d::2b",
-      "kavlan-7": "2001:660:4406:593:d::2b",
-      "kavlan-8": "2001:660:4406:594:d::2b",
-      "kavlan-9": "2001:660:4406:595:d::2b"
+      "kavlan-1": "2001:660:4406:580:d:0::2b",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::2b",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::2b",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::2b",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::2b",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::2b",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::2b",
+      "kavlan-2": "2001:660:4406:581:d:0::2b",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::2b",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::2b",
+      "kavlan-3": "2001:660:4406:582:d:0::2b",
+      "kavlan-4": "2001:660:4406:590:d:0::2b",
+      "kavlan-5": "2001:660:4406:591:d:0::2b",
+      "kavlan-6": "2001:660:4406:592:d:0::2b",
+      "kavlan-7": "2001:660:4406:593:d:0::2b",
+      "kavlan-8": "2001:660:4406:594:d:0::2b",
+      "kavlan-9": "2001:660:4406:595:d:0::2b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.43",
-      "ip6": "2001:660:4406:500:d::2b",
+      "ip6": "2001:660:4406:500:d:0::2b",
       "kavlan": true,
       "mac": "3c:fd:fe:57:d4:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-44.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-44.json
index b4c29212747..5702deeca50 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-44.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-44.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::2c",
-      "kavlan-11": "2001:660:4406:1a0:50d::2c",
-      "kavlan-12": "2001:660:4406:2a0:50d::2c",
-      "kavlan-13": "2001:660:4406:4a0:50d::2c",
-      "kavlan-14": "2001:660:4406:5a0:50d::2c",
-      "kavlan-16": "2001:660:4406:7a0:50d::2c",
-      "kavlan-18": "2001:660:4406:8a0:50d::2c",
-      "kavlan-2": "2001:660:4406:581:d::2c",
-      "kavlan-20": "2001:660:4406:3a0:50d::2c",
-      "kavlan-21": "2001:660:4406:6a0:50d::2c",
-      "kavlan-3": "2001:660:4406:582:d::2c",
-      "kavlan-4": "2001:660:4406:590:d::2c",
-      "kavlan-5": "2001:660:4406:591:d::2c",
-      "kavlan-6": "2001:660:4406:592:d::2c",
-      "kavlan-7": "2001:660:4406:593:d::2c",
-      "kavlan-8": "2001:660:4406:594:d::2c",
-      "kavlan-9": "2001:660:4406:595:d::2c"
+      "kavlan-1": "2001:660:4406:580:d:0::2c",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::2c",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::2c",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::2c",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::2c",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::2c",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::2c",
+      "kavlan-2": "2001:660:4406:581:d:0::2c",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::2c",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::2c",
+      "kavlan-3": "2001:660:4406:582:d:0::2c",
+      "kavlan-4": "2001:660:4406:590:d:0::2c",
+      "kavlan-5": "2001:660:4406:591:d:0::2c",
+      "kavlan-6": "2001:660:4406:592:d:0::2c",
+      "kavlan-7": "2001:660:4406:593:d:0::2c",
+      "kavlan-8": "2001:660:4406:594:d:0::2c",
+      "kavlan-9": "2001:660:4406:595:d:0::2c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.44",
-      "ip6": "2001:660:4406:500:d::2c",
+      "ip6": "2001:660:4406:500:d:0::2c",
       "kavlan": true,
       "mac": "3c:fd:fe:57:69:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-45.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-45.json
index de287021574..3d7efd5fc9a 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-45.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-45.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::2d",
-      "kavlan-11": "2001:660:4406:1a0:50d::2d",
-      "kavlan-12": "2001:660:4406:2a0:50d::2d",
-      "kavlan-13": "2001:660:4406:4a0:50d::2d",
-      "kavlan-14": "2001:660:4406:5a0:50d::2d",
-      "kavlan-16": "2001:660:4406:7a0:50d::2d",
-      "kavlan-18": "2001:660:4406:8a0:50d::2d",
-      "kavlan-2": "2001:660:4406:581:d::2d",
-      "kavlan-20": "2001:660:4406:3a0:50d::2d",
-      "kavlan-21": "2001:660:4406:6a0:50d::2d",
-      "kavlan-3": "2001:660:4406:582:d::2d",
-      "kavlan-4": "2001:660:4406:590:d::2d",
-      "kavlan-5": "2001:660:4406:591:d::2d",
-      "kavlan-6": "2001:660:4406:592:d::2d",
-      "kavlan-7": "2001:660:4406:593:d::2d",
-      "kavlan-8": "2001:660:4406:594:d::2d",
-      "kavlan-9": "2001:660:4406:595:d::2d"
+      "kavlan-1": "2001:660:4406:580:d:0::2d",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::2d",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::2d",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::2d",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::2d",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::2d",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::2d",
+      "kavlan-2": "2001:660:4406:581:d:0::2d",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::2d",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::2d",
+      "kavlan-3": "2001:660:4406:582:d:0::2d",
+      "kavlan-4": "2001:660:4406:590:d:0::2d",
+      "kavlan-5": "2001:660:4406:591:d:0::2d",
+      "kavlan-6": "2001:660:4406:592:d:0::2d",
+      "kavlan-7": "2001:660:4406:593:d:0::2d",
+      "kavlan-8": "2001:660:4406:594:d:0::2d",
+      "kavlan-9": "2001:660:4406:595:d:0::2d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.45",
-      "ip6": "2001:660:4406:500:d::2d",
+      "ip6": "2001:660:4406:500:d:0::2d",
       "kavlan": true,
       "mac": "3c:fd:fe:58:14:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-46.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-46.json
index 4a1b0a1fa61..cfe98e3e639 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-46.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-46.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::2e",
-      "kavlan-11": "2001:660:4406:1a0:50d::2e",
-      "kavlan-12": "2001:660:4406:2a0:50d::2e",
-      "kavlan-13": "2001:660:4406:4a0:50d::2e",
-      "kavlan-14": "2001:660:4406:5a0:50d::2e",
-      "kavlan-16": "2001:660:4406:7a0:50d::2e",
-      "kavlan-18": "2001:660:4406:8a0:50d::2e",
-      "kavlan-2": "2001:660:4406:581:d::2e",
-      "kavlan-20": "2001:660:4406:3a0:50d::2e",
-      "kavlan-21": "2001:660:4406:6a0:50d::2e",
-      "kavlan-3": "2001:660:4406:582:d::2e",
-      "kavlan-4": "2001:660:4406:590:d::2e",
-      "kavlan-5": "2001:660:4406:591:d::2e",
-      "kavlan-6": "2001:660:4406:592:d::2e",
-      "kavlan-7": "2001:660:4406:593:d::2e",
-      "kavlan-8": "2001:660:4406:594:d::2e",
-      "kavlan-9": "2001:660:4406:595:d::2e"
+      "kavlan-1": "2001:660:4406:580:d:0::2e",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::2e",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::2e",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::2e",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::2e",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::2e",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::2e",
+      "kavlan-2": "2001:660:4406:581:d:0::2e",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::2e",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::2e",
+      "kavlan-3": "2001:660:4406:582:d:0::2e",
+      "kavlan-4": "2001:660:4406:590:d:0::2e",
+      "kavlan-5": "2001:660:4406:591:d:0::2e",
+      "kavlan-6": "2001:660:4406:592:d:0::2e",
+      "kavlan-7": "2001:660:4406:593:d:0::2e",
+      "kavlan-8": "2001:660:4406:594:d:0::2e",
+      "kavlan-9": "2001:660:4406:595:d:0::2e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.46",
-      "ip6": "2001:660:4406:500:d::2e",
+      "ip6": "2001:660:4406:500:d:0::2e",
       "kavlan": true,
       "mac": "3c:fd:fe:58:06:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-47.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-47.json
index 5eafce52af3..ee35994d3c9 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-47.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-47.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::2f",
-      "kavlan-11": "2001:660:4406:1a0:50d::2f",
-      "kavlan-12": "2001:660:4406:2a0:50d::2f",
-      "kavlan-13": "2001:660:4406:4a0:50d::2f",
-      "kavlan-14": "2001:660:4406:5a0:50d::2f",
-      "kavlan-16": "2001:660:4406:7a0:50d::2f",
-      "kavlan-18": "2001:660:4406:8a0:50d::2f",
-      "kavlan-2": "2001:660:4406:581:d::2f",
-      "kavlan-20": "2001:660:4406:3a0:50d::2f",
-      "kavlan-21": "2001:660:4406:6a0:50d::2f",
-      "kavlan-3": "2001:660:4406:582:d::2f",
-      "kavlan-4": "2001:660:4406:590:d::2f",
-      "kavlan-5": "2001:660:4406:591:d::2f",
-      "kavlan-6": "2001:660:4406:592:d::2f",
-      "kavlan-7": "2001:660:4406:593:d::2f",
-      "kavlan-8": "2001:660:4406:594:d::2f",
-      "kavlan-9": "2001:660:4406:595:d::2f"
+      "kavlan-1": "2001:660:4406:580:d:0::2f",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::2f",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::2f",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::2f",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::2f",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::2f",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::2f",
+      "kavlan-2": "2001:660:4406:581:d:0::2f",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::2f",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::2f",
+      "kavlan-3": "2001:660:4406:582:d:0::2f",
+      "kavlan-4": "2001:660:4406:590:d:0::2f",
+      "kavlan-5": "2001:660:4406:591:d:0::2f",
+      "kavlan-6": "2001:660:4406:592:d:0::2f",
+      "kavlan-7": "2001:660:4406:593:d:0::2f",
+      "kavlan-8": "2001:660:4406:594:d:0::2f",
+      "kavlan-9": "2001:660:4406:595:d:0::2f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.47",
-      "ip6": "2001:660:4406:500:d::2f",
+      "ip6": "2001:660:4406:500:d:0::2f",
       "kavlan": true,
       "mac": "3c:fd:fe:59:1a:10",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-48.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-48.json
index 4a0f76fb095..0b0b0b33eda 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-48.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-48.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::30",
-      "kavlan-11": "2001:660:4406:1a0:50d::30",
-      "kavlan-12": "2001:660:4406:2a0:50d::30",
-      "kavlan-13": "2001:660:4406:4a0:50d::30",
-      "kavlan-14": "2001:660:4406:5a0:50d::30",
-      "kavlan-16": "2001:660:4406:7a0:50d::30",
-      "kavlan-18": "2001:660:4406:8a0:50d::30",
-      "kavlan-2": "2001:660:4406:581:d::30",
-      "kavlan-20": "2001:660:4406:3a0:50d::30",
-      "kavlan-21": "2001:660:4406:6a0:50d::30",
-      "kavlan-3": "2001:660:4406:582:d::30",
-      "kavlan-4": "2001:660:4406:590:d::30",
-      "kavlan-5": "2001:660:4406:591:d::30",
-      "kavlan-6": "2001:660:4406:592:d::30",
-      "kavlan-7": "2001:660:4406:593:d::30",
-      "kavlan-8": "2001:660:4406:594:d::30",
-      "kavlan-9": "2001:660:4406:595:d::30"
+      "kavlan-1": "2001:660:4406:580:d:0::30",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::30",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::30",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::30",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::30",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::30",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::30",
+      "kavlan-2": "2001:660:4406:581:d:0::30",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::30",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::30",
+      "kavlan-3": "2001:660:4406:582:d:0::30",
+      "kavlan-4": "2001:660:4406:590:d:0::30",
+      "kavlan-5": "2001:660:4406:591:d:0::30",
+      "kavlan-6": "2001:660:4406:592:d:0::30",
+      "kavlan-7": "2001:660:4406:593:d:0::30",
+      "kavlan-8": "2001:660:4406:594:d:0::30",
+      "kavlan-9": "2001:660:4406:595:d:0::30"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.48",
-      "ip6": "2001:660:4406:500:d::30",
+      "ip6": "2001:660:4406:500:d:0::30",
       "kavlan": true,
       "mac": "3c:fd:fe:59:38:d0",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-49.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-49.json
index a8afe1836c8..41af2c138f4 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-49.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-49.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::31",
-      "kavlan-11": "2001:660:4406:1a0:50d::31",
-      "kavlan-12": "2001:660:4406:2a0:50d::31",
-      "kavlan-13": "2001:660:4406:4a0:50d::31",
-      "kavlan-14": "2001:660:4406:5a0:50d::31",
-      "kavlan-16": "2001:660:4406:7a0:50d::31",
-      "kavlan-18": "2001:660:4406:8a0:50d::31",
-      "kavlan-2": "2001:660:4406:581:d::31",
-      "kavlan-20": "2001:660:4406:3a0:50d::31",
-      "kavlan-21": "2001:660:4406:6a0:50d::31",
-      "kavlan-3": "2001:660:4406:582:d::31",
-      "kavlan-4": "2001:660:4406:590:d::31",
-      "kavlan-5": "2001:660:4406:591:d::31",
-      "kavlan-6": "2001:660:4406:592:d::31",
-      "kavlan-7": "2001:660:4406:593:d::31",
-      "kavlan-8": "2001:660:4406:594:d::31",
-      "kavlan-9": "2001:660:4406:595:d::31"
+      "kavlan-1": "2001:660:4406:580:d:0::31",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::31",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::31",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::31",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::31",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::31",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::31",
+      "kavlan-2": "2001:660:4406:581:d:0::31",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::31",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::31",
+      "kavlan-3": "2001:660:4406:582:d:0::31",
+      "kavlan-4": "2001:660:4406:590:d:0::31",
+      "kavlan-5": "2001:660:4406:591:d:0::31",
+      "kavlan-6": "2001:660:4406:592:d:0::31",
+      "kavlan-7": "2001:660:4406:593:d:0::31",
+      "kavlan-8": "2001:660:4406:594:d:0::31",
+      "kavlan-9": "2001:660:4406:595:d:0::31"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.49",
-      "ip6": "2001:660:4406:500:d::31",
+      "ip6": "2001:660:4406:500:d:0::31",
       "kavlan": true,
       "mac": "3c:fd:fe:57:b0:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-5.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-5.json
index 69527ac66a0..d83f784e939 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-5.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::5",
-      "kavlan-11": "2001:660:4406:1a0:50d::5",
-      "kavlan-12": "2001:660:4406:2a0:50d::5",
-      "kavlan-13": "2001:660:4406:4a0:50d::5",
-      "kavlan-14": "2001:660:4406:5a0:50d::5",
-      "kavlan-16": "2001:660:4406:7a0:50d::5",
-      "kavlan-18": "2001:660:4406:8a0:50d::5",
-      "kavlan-2": "2001:660:4406:581:d::5",
-      "kavlan-20": "2001:660:4406:3a0:50d::5",
-      "kavlan-21": "2001:660:4406:6a0:50d::5",
-      "kavlan-3": "2001:660:4406:582:d::5",
-      "kavlan-4": "2001:660:4406:590:d::5",
-      "kavlan-5": "2001:660:4406:591:d::5",
-      "kavlan-6": "2001:660:4406:592:d::5",
-      "kavlan-7": "2001:660:4406:593:d::5",
-      "kavlan-8": "2001:660:4406:594:d::5",
-      "kavlan-9": "2001:660:4406:595:d::5"
+      "kavlan-1": "2001:660:4406:580:d:0::5",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::5",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::5",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::5",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::5",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::5",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::5",
+      "kavlan-2": "2001:660:4406:581:d:0::5",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::5",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::5",
+      "kavlan-3": "2001:660:4406:582:d:0::5",
+      "kavlan-4": "2001:660:4406:590:d:0::5",
+      "kavlan-5": "2001:660:4406:591:d:0::5",
+      "kavlan-6": "2001:660:4406:592:d:0::5",
+      "kavlan-7": "2001:660:4406:593:d:0::5",
+      "kavlan-8": "2001:660:4406:594:d:0::5",
+      "kavlan-9": "2001:660:4406:595:d:0::5"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.5",
-      "ip6": "2001:660:4406:500:d::5",
+      "ip6": "2001:660:4406:500:d:0::5",
       "kavlan": true,
       "mac": "3c:fd:fe:57:bc:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-50.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-50.json
index c34ddfa30a8..41f18802e24 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-50.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-50.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::32",
-      "kavlan-11": "2001:660:4406:1a0:50d::32",
-      "kavlan-12": "2001:660:4406:2a0:50d::32",
-      "kavlan-13": "2001:660:4406:4a0:50d::32",
-      "kavlan-14": "2001:660:4406:5a0:50d::32",
-      "kavlan-16": "2001:660:4406:7a0:50d::32",
-      "kavlan-18": "2001:660:4406:8a0:50d::32",
-      "kavlan-2": "2001:660:4406:581:d::32",
-      "kavlan-20": "2001:660:4406:3a0:50d::32",
-      "kavlan-21": "2001:660:4406:6a0:50d::32",
-      "kavlan-3": "2001:660:4406:582:d::32",
-      "kavlan-4": "2001:660:4406:590:d::32",
-      "kavlan-5": "2001:660:4406:591:d::32",
-      "kavlan-6": "2001:660:4406:592:d::32",
-      "kavlan-7": "2001:660:4406:593:d::32",
-      "kavlan-8": "2001:660:4406:594:d::32",
-      "kavlan-9": "2001:660:4406:595:d::32"
+      "kavlan-1": "2001:660:4406:580:d:0::32",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::32",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::32",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::32",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::32",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::32",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::32",
+      "kavlan-2": "2001:660:4406:581:d:0::32",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::32",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::32",
+      "kavlan-3": "2001:660:4406:582:d:0::32",
+      "kavlan-4": "2001:660:4406:590:d:0::32",
+      "kavlan-5": "2001:660:4406:591:d:0::32",
+      "kavlan-6": "2001:660:4406:592:d:0::32",
+      "kavlan-7": "2001:660:4406:593:d:0::32",
+      "kavlan-8": "2001:660:4406:594:d:0::32",
+      "kavlan-9": "2001:660:4406:595:d:0::32"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.50",
-      "ip6": "2001:660:4406:500:d::32",
+      "ip6": "2001:660:4406:500:d:0::32",
       "kavlan": true,
       "mac": "3c:fd:fe:57:b2:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-51.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-51.json
index 4020ec6a91b..195d9d76f99 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-51.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-51.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::33",
-      "kavlan-11": "2001:660:4406:1a0:50d::33",
-      "kavlan-12": "2001:660:4406:2a0:50d::33",
-      "kavlan-13": "2001:660:4406:4a0:50d::33",
-      "kavlan-14": "2001:660:4406:5a0:50d::33",
-      "kavlan-16": "2001:660:4406:7a0:50d::33",
-      "kavlan-18": "2001:660:4406:8a0:50d::33",
-      "kavlan-2": "2001:660:4406:581:d::33",
-      "kavlan-20": "2001:660:4406:3a0:50d::33",
-      "kavlan-21": "2001:660:4406:6a0:50d::33",
-      "kavlan-3": "2001:660:4406:582:d::33",
-      "kavlan-4": "2001:660:4406:590:d::33",
-      "kavlan-5": "2001:660:4406:591:d::33",
-      "kavlan-6": "2001:660:4406:592:d::33",
-      "kavlan-7": "2001:660:4406:593:d::33",
-      "kavlan-8": "2001:660:4406:594:d::33",
-      "kavlan-9": "2001:660:4406:595:d::33"
+      "kavlan-1": "2001:660:4406:580:d:0::33",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::33",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::33",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::33",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::33",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::33",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::33",
+      "kavlan-2": "2001:660:4406:581:d:0::33",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::33",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::33",
+      "kavlan-3": "2001:660:4406:582:d:0::33",
+      "kavlan-4": "2001:660:4406:590:d:0::33",
+      "kavlan-5": "2001:660:4406:591:d:0::33",
+      "kavlan-6": "2001:660:4406:592:d:0::33",
+      "kavlan-7": "2001:660:4406:593:d:0::33",
+      "kavlan-8": "2001:660:4406:594:d:0::33",
+      "kavlan-9": "2001:660:4406:595:d:0::33"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.51",
-      "ip6": "2001:660:4406:500:d::33",
+      "ip6": "2001:660:4406:500:d:0::33",
       "kavlan": true,
       "mac": "3c:fd:fe:57:64:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-52.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-52.json
index 13bef4c4d5f..a2b1cecb422 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-52.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-52.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::34",
-      "kavlan-11": "2001:660:4406:1a0:50d::34",
-      "kavlan-12": "2001:660:4406:2a0:50d::34",
-      "kavlan-13": "2001:660:4406:4a0:50d::34",
-      "kavlan-14": "2001:660:4406:5a0:50d::34",
-      "kavlan-16": "2001:660:4406:7a0:50d::34",
-      "kavlan-18": "2001:660:4406:8a0:50d::34",
-      "kavlan-2": "2001:660:4406:581:d::34",
-      "kavlan-20": "2001:660:4406:3a0:50d::34",
-      "kavlan-21": "2001:660:4406:6a0:50d::34",
-      "kavlan-3": "2001:660:4406:582:d::34",
-      "kavlan-4": "2001:660:4406:590:d::34",
-      "kavlan-5": "2001:660:4406:591:d::34",
-      "kavlan-6": "2001:660:4406:592:d::34",
-      "kavlan-7": "2001:660:4406:593:d::34",
-      "kavlan-8": "2001:660:4406:594:d::34",
-      "kavlan-9": "2001:660:4406:595:d::34"
+      "kavlan-1": "2001:660:4406:580:d:0::34",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::34",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::34",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::34",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::34",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::34",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::34",
+      "kavlan-2": "2001:660:4406:581:d:0::34",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::34",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::34",
+      "kavlan-3": "2001:660:4406:582:d:0::34",
+      "kavlan-4": "2001:660:4406:590:d:0::34",
+      "kavlan-5": "2001:660:4406:591:d:0::34",
+      "kavlan-6": "2001:660:4406:592:d:0::34",
+      "kavlan-7": "2001:660:4406:593:d:0::34",
+      "kavlan-8": "2001:660:4406:594:d:0::34",
+      "kavlan-9": "2001:660:4406:595:d:0::34"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.52",
-      "ip6": "2001:660:4406:500:d::34",
+      "ip6": "2001:660:4406:500:d:0::34",
       "kavlan": true,
       "mac": "3c:fd:fe:57:d1:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-53.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-53.json
index 22afcf47b3b..03df9dd9aab 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-53.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-53.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::35",
-      "kavlan-11": "2001:660:4406:1a0:50d::35",
-      "kavlan-12": "2001:660:4406:2a0:50d::35",
-      "kavlan-13": "2001:660:4406:4a0:50d::35",
-      "kavlan-14": "2001:660:4406:5a0:50d::35",
-      "kavlan-16": "2001:660:4406:7a0:50d::35",
-      "kavlan-18": "2001:660:4406:8a0:50d::35",
-      "kavlan-2": "2001:660:4406:581:d::35",
-      "kavlan-20": "2001:660:4406:3a0:50d::35",
-      "kavlan-21": "2001:660:4406:6a0:50d::35",
-      "kavlan-3": "2001:660:4406:582:d::35",
-      "kavlan-4": "2001:660:4406:590:d::35",
-      "kavlan-5": "2001:660:4406:591:d::35",
-      "kavlan-6": "2001:660:4406:592:d::35",
-      "kavlan-7": "2001:660:4406:593:d::35",
-      "kavlan-8": "2001:660:4406:594:d::35",
-      "kavlan-9": "2001:660:4406:595:d::35"
+      "kavlan-1": "2001:660:4406:580:d:0::35",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::35",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::35",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::35",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::35",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::35",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::35",
+      "kavlan-2": "2001:660:4406:581:d:0::35",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::35",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::35",
+      "kavlan-3": "2001:660:4406:582:d:0::35",
+      "kavlan-4": "2001:660:4406:590:d:0::35",
+      "kavlan-5": "2001:660:4406:591:d:0::35",
+      "kavlan-6": "2001:660:4406:592:d:0::35",
+      "kavlan-7": "2001:660:4406:593:d:0::35",
+      "kavlan-8": "2001:660:4406:594:d:0::35",
+      "kavlan-9": "2001:660:4406:595:d:0::35"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.53",
-      "ip6": "2001:660:4406:500:d::35",
+      "ip6": "2001:660:4406:500:d:0::35",
       "kavlan": true,
       "mac": "3c:fd:fe:56:ea:00",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-54.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-54.json
index bbff81d2b3a..e029673a580 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-54.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-54.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::36",
-      "kavlan-11": "2001:660:4406:1a0:50d::36",
-      "kavlan-12": "2001:660:4406:2a0:50d::36",
-      "kavlan-13": "2001:660:4406:4a0:50d::36",
-      "kavlan-14": "2001:660:4406:5a0:50d::36",
-      "kavlan-16": "2001:660:4406:7a0:50d::36",
-      "kavlan-18": "2001:660:4406:8a0:50d::36",
-      "kavlan-2": "2001:660:4406:581:d::36",
-      "kavlan-20": "2001:660:4406:3a0:50d::36",
-      "kavlan-21": "2001:660:4406:6a0:50d::36",
-      "kavlan-3": "2001:660:4406:582:d::36",
-      "kavlan-4": "2001:660:4406:590:d::36",
-      "kavlan-5": "2001:660:4406:591:d::36",
-      "kavlan-6": "2001:660:4406:592:d::36",
-      "kavlan-7": "2001:660:4406:593:d::36",
-      "kavlan-8": "2001:660:4406:594:d::36",
-      "kavlan-9": "2001:660:4406:595:d::36"
+      "kavlan-1": "2001:660:4406:580:d:0::36",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::36",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::36",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::36",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::36",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::36",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::36",
+      "kavlan-2": "2001:660:4406:581:d:0::36",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::36",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::36",
+      "kavlan-3": "2001:660:4406:582:d:0::36",
+      "kavlan-4": "2001:660:4406:590:d:0::36",
+      "kavlan-5": "2001:660:4406:591:d:0::36",
+      "kavlan-6": "2001:660:4406:592:d:0::36",
+      "kavlan-7": "2001:660:4406:593:d:0::36",
+      "kavlan-8": "2001:660:4406:594:d:0::36",
+      "kavlan-9": "2001:660:4406:595:d:0::36"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.54",
-      "ip6": "2001:660:4406:500:d::36",
+      "ip6": "2001:660:4406:500:d:0::36",
       "kavlan": true,
       "mac": "3c:fd:fe:56:dc:60",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-55.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-55.json
index 91b4f86a1e1..17f4b4c584d 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-55.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-55.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::37",
-      "kavlan-11": "2001:660:4406:1a0:50d::37",
-      "kavlan-12": "2001:660:4406:2a0:50d::37",
-      "kavlan-13": "2001:660:4406:4a0:50d::37",
-      "kavlan-14": "2001:660:4406:5a0:50d::37",
-      "kavlan-16": "2001:660:4406:7a0:50d::37",
-      "kavlan-18": "2001:660:4406:8a0:50d::37",
-      "kavlan-2": "2001:660:4406:581:d::37",
-      "kavlan-20": "2001:660:4406:3a0:50d::37",
-      "kavlan-21": "2001:660:4406:6a0:50d::37",
-      "kavlan-3": "2001:660:4406:582:d::37",
-      "kavlan-4": "2001:660:4406:590:d::37",
-      "kavlan-5": "2001:660:4406:591:d::37",
-      "kavlan-6": "2001:660:4406:592:d::37",
-      "kavlan-7": "2001:660:4406:593:d::37",
-      "kavlan-8": "2001:660:4406:594:d::37",
-      "kavlan-9": "2001:660:4406:595:d::37"
+      "kavlan-1": "2001:660:4406:580:d:0::37",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::37",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::37",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::37",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::37",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::37",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::37",
+      "kavlan-2": "2001:660:4406:581:d:0::37",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::37",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::37",
+      "kavlan-3": "2001:660:4406:582:d:0::37",
+      "kavlan-4": "2001:660:4406:590:d:0::37",
+      "kavlan-5": "2001:660:4406:591:d:0::37",
+      "kavlan-6": "2001:660:4406:592:d:0::37",
+      "kavlan-7": "2001:660:4406:593:d:0::37",
+      "kavlan-8": "2001:660:4406:594:d:0::37",
+      "kavlan-9": "2001:660:4406:595:d:0::37"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.55",
-      "ip6": "2001:660:4406:500:d::37",
+      "ip6": "2001:660:4406:500:d:0::37",
       "kavlan": true,
       "mac": "3c:fd:fe:57:ab:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-56.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-56.json
index 82518856658..ddd49a89e5c 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-56.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-56.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::38",
-      "kavlan-11": "2001:660:4406:1a0:50d::38",
-      "kavlan-12": "2001:660:4406:2a0:50d::38",
-      "kavlan-13": "2001:660:4406:4a0:50d::38",
-      "kavlan-14": "2001:660:4406:5a0:50d::38",
-      "kavlan-16": "2001:660:4406:7a0:50d::38",
-      "kavlan-18": "2001:660:4406:8a0:50d::38",
-      "kavlan-2": "2001:660:4406:581:d::38",
-      "kavlan-20": "2001:660:4406:3a0:50d::38",
-      "kavlan-21": "2001:660:4406:6a0:50d::38",
-      "kavlan-3": "2001:660:4406:582:d::38",
-      "kavlan-4": "2001:660:4406:590:d::38",
-      "kavlan-5": "2001:660:4406:591:d::38",
-      "kavlan-6": "2001:660:4406:592:d::38",
-      "kavlan-7": "2001:660:4406:593:d::38",
-      "kavlan-8": "2001:660:4406:594:d::38",
-      "kavlan-9": "2001:660:4406:595:d::38"
+      "kavlan-1": "2001:660:4406:580:d:0::38",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::38",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::38",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::38",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::38",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::38",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::38",
+      "kavlan-2": "2001:660:4406:581:d:0::38",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::38",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::38",
+      "kavlan-3": "2001:660:4406:582:d:0::38",
+      "kavlan-4": "2001:660:4406:590:d:0::38",
+      "kavlan-5": "2001:660:4406:591:d:0::38",
+      "kavlan-6": "2001:660:4406:592:d:0::38",
+      "kavlan-7": "2001:660:4406:593:d:0::38",
+      "kavlan-8": "2001:660:4406:594:d:0::38",
+      "kavlan-9": "2001:660:4406:595:d:0::38"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.56",
-      "ip6": "2001:660:4406:500:d::38",
+      "ip6": "2001:660:4406:500:d:0::38",
       "kavlan": true,
       "mac": "3c:fd:fe:57:69:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-57.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-57.json
index 20bad38138d..6a907ab8c48 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-57.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-57.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::39",
-      "kavlan-11": "2001:660:4406:1a0:50d::39",
-      "kavlan-12": "2001:660:4406:2a0:50d::39",
-      "kavlan-13": "2001:660:4406:4a0:50d::39",
-      "kavlan-14": "2001:660:4406:5a0:50d::39",
-      "kavlan-16": "2001:660:4406:7a0:50d::39",
-      "kavlan-18": "2001:660:4406:8a0:50d::39",
-      "kavlan-2": "2001:660:4406:581:d::39",
-      "kavlan-20": "2001:660:4406:3a0:50d::39",
-      "kavlan-21": "2001:660:4406:6a0:50d::39",
-      "kavlan-3": "2001:660:4406:582:d::39",
-      "kavlan-4": "2001:660:4406:590:d::39",
-      "kavlan-5": "2001:660:4406:591:d::39",
-      "kavlan-6": "2001:660:4406:592:d::39",
-      "kavlan-7": "2001:660:4406:593:d::39",
-      "kavlan-8": "2001:660:4406:594:d::39",
-      "kavlan-9": "2001:660:4406:595:d::39"
+      "kavlan-1": "2001:660:4406:580:d:0::39",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::39",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::39",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::39",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::39",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::39",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::39",
+      "kavlan-2": "2001:660:4406:581:d:0::39",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::39",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::39",
+      "kavlan-3": "2001:660:4406:582:d:0::39",
+      "kavlan-4": "2001:660:4406:590:d:0::39",
+      "kavlan-5": "2001:660:4406:591:d:0::39",
+      "kavlan-6": "2001:660:4406:592:d:0::39",
+      "kavlan-7": "2001:660:4406:593:d:0::39",
+      "kavlan-8": "2001:660:4406:594:d:0::39",
+      "kavlan-9": "2001:660:4406:595:d:0::39"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.57",
-      "ip6": "2001:660:4406:500:d::39",
+      "ip6": "2001:660:4406:500:d:0::39",
       "kavlan": true,
       "mac": "3c:fd:fe:58:04:58",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-58.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-58.json
index 121291a6cca..764f9048ca5 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-58.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-58.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::3a",
-      "kavlan-11": "2001:660:4406:1a0:50d::3a",
-      "kavlan-12": "2001:660:4406:2a0:50d::3a",
-      "kavlan-13": "2001:660:4406:4a0:50d::3a",
-      "kavlan-14": "2001:660:4406:5a0:50d::3a",
-      "kavlan-16": "2001:660:4406:7a0:50d::3a",
-      "kavlan-18": "2001:660:4406:8a0:50d::3a",
-      "kavlan-2": "2001:660:4406:581:d::3a",
-      "kavlan-20": "2001:660:4406:3a0:50d::3a",
-      "kavlan-21": "2001:660:4406:6a0:50d::3a",
-      "kavlan-3": "2001:660:4406:582:d::3a",
-      "kavlan-4": "2001:660:4406:590:d::3a",
-      "kavlan-5": "2001:660:4406:591:d::3a",
-      "kavlan-6": "2001:660:4406:592:d::3a",
-      "kavlan-7": "2001:660:4406:593:d::3a",
-      "kavlan-8": "2001:660:4406:594:d::3a",
-      "kavlan-9": "2001:660:4406:595:d::3a"
+      "kavlan-1": "2001:660:4406:580:d:0::3a",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::3a",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::3a",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::3a",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::3a",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::3a",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::3a",
+      "kavlan-2": "2001:660:4406:581:d:0::3a",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::3a",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::3a",
+      "kavlan-3": "2001:660:4406:582:d:0::3a",
+      "kavlan-4": "2001:660:4406:590:d:0::3a",
+      "kavlan-5": "2001:660:4406:591:d:0::3a",
+      "kavlan-6": "2001:660:4406:592:d:0::3a",
+      "kavlan-7": "2001:660:4406:593:d:0::3a",
+      "kavlan-8": "2001:660:4406:594:d:0::3a",
+      "kavlan-9": "2001:660:4406:595:d:0::3a"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.58",
-      "ip6": "2001:660:4406:500:d::3a",
+      "ip6": "2001:660:4406:500:d:0::3a",
       "kavlan": true,
       "mac": "3c:fd:fe:58:13:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-59.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-59.json
index 34b45180bee..fd23eb52977 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-59.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-59.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::3b",
-      "kavlan-11": "2001:660:4406:1a0:50d::3b",
-      "kavlan-12": "2001:660:4406:2a0:50d::3b",
-      "kavlan-13": "2001:660:4406:4a0:50d::3b",
-      "kavlan-14": "2001:660:4406:5a0:50d::3b",
-      "kavlan-16": "2001:660:4406:7a0:50d::3b",
-      "kavlan-18": "2001:660:4406:8a0:50d::3b",
-      "kavlan-2": "2001:660:4406:581:d::3b",
-      "kavlan-20": "2001:660:4406:3a0:50d::3b",
-      "kavlan-21": "2001:660:4406:6a0:50d::3b",
-      "kavlan-3": "2001:660:4406:582:d::3b",
-      "kavlan-4": "2001:660:4406:590:d::3b",
-      "kavlan-5": "2001:660:4406:591:d::3b",
-      "kavlan-6": "2001:660:4406:592:d::3b",
-      "kavlan-7": "2001:660:4406:593:d::3b",
-      "kavlan-8": "2001:660:4406:594:d::3b",
-      "kavlan-9": "2001:660:4406:595:d::3b"
+      "kavlan-1": "2001:660:4406:580:d:0::3b",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::3b",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::3b",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::3b",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::3b",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::3b",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::3b",
+      "kavlan-2": "2001:660:4406:581:d:0::3b",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::3b",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::3b",
+      "kavlan-3": "2001:660:4406:582:d:0::3b",
+      "kavlan-4": "2001:660:4406:590:d:0::3b",
+      "kavlan-5": "2001:660:4406:591:d:0::3b",
+      "kavlan-6": "2001:660:4406:592:d:0::3b",
+      "kavlan-7": "2001:660:4406:593:d:0::3b",
+      "kavlan-8": "2001:660:4406:594:d:0::3b",
+      "kavlan-9": "2001:660:4406:595:d:0::3b"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.59",
-      "ip6": "2001:660:4406:500:d::3b",
+      "ip6": "2001:660:4406:500:d:0::3b",
       "kavlan": true,
       "mac": "3c:fd:fe:58:02:f8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-6.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-6.json
index 5c8c524e336..49881e99c13 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-6.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::6",
-      "kavlan-11": "2001:660:4406:1a0:50d::6",
-      "kavlan-12": "2001:660:4406:2a0:50d::6",
-      "kavlan-13": "2001:660:4406:4a0:50d::6",
-      "kavlan-14": "2001:660:4406:5a0:50d::6",
-      "kavlan-16": "2001:660:4406:7a0:50d::6",
-      "kavlan-18": "2001:660:4406:8a0:50d::6",
-      "kavlan-2": "2001:660:4406:581:d::6",
-      "kavlan-20": "2001:660:4406:3a0:50d::6",
-      "kavlan-21": "2001:660:4406:6a0:50d::6",
-      "kavlan-3": "2001:660:4406:582:d::6",
-      "kavlan-4": "2001:660:4406:590:d::6",
-      "kavlan-5": "2001:660:4406:591:d::6",
-      "kavlan-6": "2001:660:4406:592:d::6",
-      "kavlan-7": "2001:660:4406:593:d::6",
-      "kavlan-8": "2001:660:4406:594:d::6",
-      "kavlan-9": "2001:660:4406:595:d::6"
+      "kavlan-1": "2001:660:4406:580:d:0::6",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::6",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::6",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::6",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::6",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::6",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::6",
+      "kavlan-2": "2001:660:4406:581:d:0::6",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::6",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::6",
+      "kavlan-3": "2001:660:4406:582:d:0::6",
+      "kavlan-4": "2001:660:4406:590:d:0::6",
+      "kavlan-5": "2001:660:4406:591:d:0::6",
+      "kavlan-6": "2001:660:4406:592:d:0::6",
+      "kavlan-7": "2001:660:4406:593:d:0::6",
+      "kavlan-8": "2001:660:4406:594:d:0::6",
+      "kavlan-9": "2001:660:4406:595:d:0::6"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.6",
-      "ip6": "2001:660:4406:500:d::6",
+      "ip6": "2001:660:4406:500:d:0::6",
       "kavlan": true,
       "mac": "3c:fd:fe:57:a6:d8",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-60.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-60.json
index 99671516485..27719f91dfb 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-60.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-60.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::3c",
-      "kavlan-11": "2001:660:4406:1a0:50d::3c",
-      "kavlan-12": "2001:660:4406:2a0:50d::3c",
-      "kavlan-13": "2001:660:4406:4a0:50d::3c",
-      "kavlan-14": "2001:660:4406:5a0:50d::3c",
-      "kavlan-16": "2001:660:4406:7a0:50d::3c",
-      "kavlan-18": "2001:660:4406:8a0:50d::3c",
-      "kavlan-2": "2001:660:4406:581:d::3c",
-      "kavlan-20": "2001:660:4406:3a0:50d::3c",
-      "kavlan-21": "2001:660:4406:6a0:50d::3c",
-      "kavlan-3": "2001:660:4406:582:d::3c",
-      "kavlan-4": "2001:660:4406:590:d::3c",
-      "kavlan-5": "2001:660:4406:591:d::3c",
-      "kavlan-6": "2001:660:4406:592:d::3c",
-      "kavlan-7": "2001:660:4406:593:d::3c",
-      "kavlan-8": "2001:660:4406:594:d::3c",
-      "kavlan-9": "2001:660:4406:595:d::3c"
+      "kavlan-1": "2001:660:4406:580:d:0::3c",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::3c",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::3c",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::3c",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::3c",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::3c",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::3c",
+      "kavlan-2": "2001:660:4406:581:d:0::3c",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::3c",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::3c",
+      "kavlan-3": "2001:660:4406:582:d:0::3c",
+      "kavlan-4": "2001:660:4406:590:d:0::3c",
+      "kavlan-5": "2001:660:4406:591:d:0::3c",
+      "kavlan-6": "2001:660:4406:592:d:0::3c",
+      "kavlan-7": "2001:660:4406:593:d:0::3c",
+      "kavlan-8": "2001:660:4406:594:d:0::3c",
+      "kavlan-9": "2001:660:4406:595:d:0::3c"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.60",
-      "ip6": "2001:660:4406:500:d::3c",
+      "ip6": "2001:660:4406:500:d:0::3c",
       "kavlan": true,
       "mac": "3c:fd:fe:58:04:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-61.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-61.json
index c7e6026add4..cd9ebc4f073 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-61.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-61.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::3d",
-      "kavlan-11": "2001:660:4406:1a0:50d::3d",
-      "kavlan-12": "2001:660:4406:2a0:50d::3d",
-      "kavlan-13": "2001:660:4406:4a0:50d::3d",
-      "kavlan-14": "2001:660:4406:5a0:50d::3d",
-      "kavlan-16": "2001:660:4406:7a0:50d::3d",
-      "kavlan-18": "2001:660:4406:8a0:50d::3d",
-      "kavlan-2": "2001:660:4406:581:d::3d",
-      "kavlan-20": "2001:660:4406:3a0:50d::3d",
-      "kavlan-21": "2001:660:4406:6a0:50d::3d",
-      "kavlan-3": "2001:660:4406:582:d::3d",
-      "kavlan-4": "2001:660:4406:590:d::3d",
-      "kavlan-5": "2001:660:4406:591:d::3d",
-      "kavlan-6": "2001:660:4406:592:d::3d",
-      "kavlan-7": "2001:660:4406:593:d::3d",
-      "kavlan-8": "2001:660:4406:594:d::3d",
-      "kavlan-9": "2001:660:4406:595:d::3d"
+      "kavlan-1": "2001:660:4406:580:d:0::3d",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::3d",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::3d",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::3d",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::3d",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::3d",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::3d",
+      "kavlan-2": "2001:660:4406:581:d:0::3d",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::3d",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::3d",
+      "kavlan-3": "2001:660:4406:582:d:0::3d",
+      "kavlan-4": "2001:660:4406:590:d:0::3d",
+      "kavlan-5": "2001:660:4406:591:d:0::3d",
+      "kavlan-6": "2001:660:4406:592:d:0::3d",
+      "kavlan-7": "2001:660:4406:593:d:0::3d",
+      "kavlan-8": "2001:660:4406:594:d:0::3d",
+      "kavlan-9": "2001:660:4406:595:d:0::3d"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.61",
-      "ip6": "2001:660:4406:500:d::3d",
+      "ip6": "2001:660:4406:500:d:0::3d",
       "kavlan": true,
       "mac": "3c:fd:fe:57:69:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-62.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-62.json
index 799bc713f84..d8b5fc88f26 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-62.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-62.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::3e",
-      "kavlan-11": "2001:660:4406:1a0:50d::3e",
-      "kavlan-12": "2001:660:4406:2a0:50d::3e",
-      "kavlan-13": "2001:660:4406:4a0:50d::3e",
-      "kavlan-14": "2001:660:4406:5a0:50d::3e",
-      "kavlan-16": "2001:660:4406:7a0:50d::3e",
-      "kavlan-18": "2001:660:4406:8a0:50d::3e",
-      "kavlan-2": "2001:660:4406:581:d::3e",
-      "kavlan-20": "2001:660:4406:3a0:50d::3e",
-      "kavlan-21": "2001:660:4406:6a0:50d::3e",
-      "kavlan-3": "2001:660:4406:582:d::3e",
-      "kavlan-4": "2001:660:4406:590:d::3e",
-      "kavlan-5": "2001:660:4406:591:d::3e",
-      "kavlan-6": "2001:660:4406:592:d::3e",
-      "kavlan-7": "2001:660:4406:593:d::3e",
-      "kavlan-8": "2001:660:4406:594:d::3e",
-      "kavlan-9": "2001:660:4406:595:d::3e"
+      "kavlan-1": "2001:660:4406:580:d:0::3e",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::3e",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::3e",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::3e",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::3e",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::3e",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::3e",
+      "kavlan-2": "2001:660:4406:581:d:0::3e",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::3e",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::3e",
+      "kavlan-3": "2001:660:4406:582:d:0::3e",
+      "kavlan-4": "2001:660:4406:590:d:0::3e",
+      "kavlan-5": "2001:660:4406:591:d:0::3e",
+      "kavlan-6": "2001:660:4406:592:d:0::3e",
+      "kavlan-7": "2001:660:4406:593:d:0::3e",
+      "kavlan-8": "2001:660:4406:594:d:0::3e",
+      "kavlan-9": "2001:660:4406:595:d:0::3e"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.62",
-      "ip6": "2001:660:4406:500:d::3e",
+      "ip6": "2001:660:4406:500:d:0::3e",
       "kavlan": true,
       "mac": "3c:fd:fe:57:67:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-63.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-63.json
index 11bc334494f..86bfa359ca1 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-63.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-63.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::3f",
-      "kavlan-11": "2001:660:4406:1a0:50d::3f",
-      "kavlan-12": "2001:660:4406:2a0:50d::3f",
-      "kavlan-13": "2001:660:4406:4a0:50d::3f",
-      "kavlan-14": "2001:660:4406:5a0:50d::3f",
-      "kavlan-16": "2001:660:4406:7a0:50d::3f",
-      "kavlan-18": "2001:660:4406:8a0:50d::3f",
-      "kavlan-2": "2001:660:4406:581:d::3f",
-      "kavlan-20": "2001:660:4406:3a0:50d::3f",
-      "kavlan-21": "2001:660:4406:6a0:50d::3f",
-      "kavlan-3": "2001:660:4406:582:d::3f",
-      "kavlan-4": "2001:660:4406:590:d::3f",
-      "kavlan-5": "2001:660:4406:591:d::3f",
-      "kavlan-6": "2001:660:4406:592:d::3f",
-      "kavlan-7": "2001:660:4406:593:d::3f",
-      "kavlan-8": "2001:660:4406:594:d::3f",
-      "kavlan-9": "2001:660:4406:595:d::3f"
+      "kavlan-1": "2001:660:4406:580:d:0::3f",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::3f",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::3f",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::3f",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::3f",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::3f",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::3f",
+      "kavlan-2": "2001:660:4406:581:d:0::3f",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::3f",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::3f",
+      "kavlan-3": "2001:660:4406:582:d:0::3f",
+      "kavlan-4": "2001:660:4406:590:d:0::3f",
+      "kavlan-5": "2001:660:4406:591:d:0::3f",
+      "kavlan-6": "2001:660:4406:592:d:0::3f",
+      "kavlan-7": "2001:660:4406:593:d:0::3f",
+      "kavlan-8": "2001:660:4406:594:d:0::3f",
+      "kavlan-9": "2001:660:4406:595:d:0::3f"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.63",
-      "ip6": "2001:660:4406:500:d::3f",
+      "ip6": "2001:660:4406:500:d:0::3f",
       "kavlan": true,
       "mac": "3c:fd:fe:57:90:18",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
index 8ff6b76aa3a..1afdd9ab2f7 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-64.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::40",
-      "kavlan-11": "2001:660:4406:1a0:50d::40",
-      "kavlan-12": "2001:660:4406:2a0:50d::40",
-      "kavlan-13": "2001:660:4406:4a0:50d::40",
-      "kavlan-14": "2001:660:4406:5a0:50d::40",
-      "kavlan-16": "2001:660:4406:7a0:50d::40",
-      "kavlan-18": "2001:660:4406:8a0:50d::40",
-      "kavlan-2": "2001:660:4406:581:d::40",
-      "kavlan-20": "2001:660:4406:3a0:50d::40",
-      "kavlan-21": "2001:660:4406:6a0:50d::40",
-      "kavlan-3": "2001:660:4406:582:d::40",
-      "kavlan-4": "2001:660:4406:590:d::40",
-      "kavlan-5": "2001:660:4406:591:d::40",
-      "kavlan-6": "2001:660:4406:592:d::40",
-      "kavlan-7": "2001:660:4406:593:d::40",
-      "kavlan-8": "2001:660:4406:594:d::40",
-      "kavlan-9": "2001:660:4406:595:d::40"
+      "kavlan-1": "2001:660:4406:580:d:0::40",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::40",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::40",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::40",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::40",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::40",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::40",
+      "kavlan-2": "2001:660:4406:581:d:0::40",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::40",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::40",
+      "kavlan-3": "2001:660:4406:582:d:0::40",
+      "kavlan-4": "2001:660:4406:590:d:0::40",
+      "kavlan-5": "2001:660:4406:591:d:0::40",
+      "kavlan-6": "2001:660:4406:592:d:0::40",
+      "kavlan-7": "2001:660:4406:593:d:0::40",
+      "kavlan-8": "2001:660:4406:594:d:0::40",
+      "kavlan-9": "2001:660:4406:595:d:0::40"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.64",
-      "ip6": "2001:660:4406:500:d::40",
+      "ip6": "2001:660:4406:500:d:0::40",
       "kavlan": true,
       "mac": "3c:fd:fe:57:7b:78",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-7.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-7.json
index 85d9d693a41..a934364d910 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-7.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::7",
-      "kavlan-11": "2001:660:4406:1a0:50d::7",
-      "kavlan-12": "2001:660:4406:2a0:50d::7",
-      "kavlan-13": "2001:660:4406:4a0:50d::7",
-      "kavlan-14": "2001:660:4406:5a0:50d::7",
-      "kavlan-16": "2001:660:4406:7a0:50d::7",
-      "kavlan-18": "2001:660:4406:8a0:50d::7",
-      "kavlan-2": "2001:660:4406:581:d::7",
-      "kavlan-20": "2001:660:4406:3a0:50d::7",
-      "kavlan-21": "2001:660:4406:6a0:50d::7",
-      "kavlan-3": "2001:660:4406:582:d::7",
-      "kavlan-4": "2001:660:4406:590:d::7",
-      "kavlan-5": "2001:660:4406:591:d::7",
-      "kavlan-6": "2001:660:4406:592:d::7",
-      "kavlan-7": "2001:660:4406:593:d::7",
-      "kavlan-8": "2001:660:4406:594:d::7",
-      "kavlan-9": "2001:660:4406:595:d::7"
+      "kavlan-1": "2001:660:4406:580:d:0::7",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::7",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::7",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::7",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::7",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::7",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::7",
+      "kavlan-2": "2001:660:4406:581:d:0::7",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::7",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::7",
+      "kavlan-3": "2001:660:4406:582:d:0::7",
+      "kavlan-4": "2001:660:4406:590:d:0::7",
+      "kavlan-5": "2001:660:4406:591:d:0::7",
+      "kavlan-6": "2001:660:4406:592:d:0::7",
+      "kavlan-7": "2001:660:4406:593:d:0::7",
+      "kavlan-8": "2001:660:4406:594:d:0::7",
+      "kavlan-9": "2001:660:4406:595:d:0::7"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.7",
-      "ip6": "2001:660:4406:500:d::7",
+      "ip6": "2001:660:4406:500:d:0::7",
       "kavlan": true,
       "mac": "3c:fd:fe:57:a7:38",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-8.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-8.json
index e2ba5b397ac..5083f865272 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-8.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::8",
-      "kavlan-11": "2001:660:4406:1a0:50d::8",
-      "kavlan-12": "2001:660:4406:2a0:50d::8",
-      "kavlan-13": "2001:660:4406:4a0:50d::8",
-      "kavlan-14": "2001:660:4406:5a0:50d::8",
-      "kavlan-16": "2001:660:4406:7a0:50d::8",
-      "kavlan-18": "2001:660:4406:8a0:50d::8",
-      "kavlan-2": "2001:660:4406:581:d::8",
-      "kavlan-20": "2001:660:4406:3a0:50d::8",
-      "kavlan-21": "2001:660:4406:6a0:50d::8",
-      "kavlan-3": "2001:660:4406:582:d::8",
-      "kavlan-4": "2001:660:4406:590:d::8",
-      "kavlan-5": "2001:660:4406:591:d::8",
-      "kavlan-6": "2001:660:4406:592:d::8",
-      "kavlan-7": "2001:660:4406:593:d::8",
-      "kavlan-8": "2001:660:4406:594:d::8",
-      "kavlan-9": "2001:660:4406:595:d::8"
+      "kavlan-1": "2001:660:4406:580:d:0::8",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::8",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::8",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::8",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::8",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::8",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::8",
+      "kavlan-2": "2001:660:4406:581:d:0::8",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::8",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::8",
+      "kavlan-3": "2001:660:4406:582:d:0::8",
+      "kavlan-4": "2001:660:4406:590:d:0::8",
+      "kavlan-5": "2001:660:4406:591:d:0::8",
+      "kavlan-6": "2001:660:4406:592:d:0::8",
+      "kavlan-7": "2001:660:4406:593:d:0::8",
+      "kavlan-8": "2001:660:4406:594:d:0::8",
+      "kavlan-9": "2001:660:4406:595:d:0::8"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.8",
-      "ip6": "2001:660:4406:500:d::8",
+      "ip6": "2001:660:4406:500:d:0::8",
       "kavlan": true,
       "mac": "3c:fd:fe:57:72:98",
       "management": false,
diff --git a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-9.json b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-9.json
index f086a5ac8a2..33f35ef45e4 100644
--- a/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-9.json
+++ b/data/grid5000/sites/nancy/clusters/grvingt/nodes/grvingt-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:580:d::9",
-      "kavlan-11": "2001:660:4406:1a0:50d::9",
-      "kavlan-12": "2001:660:4406:2a0:50d::9",
-      "kavlan-13": "2001:660:4406:4a0:50d::9",
-      "kavlan-14": "2001:660:4406:5a0:50d::9",
-      "kavlan-16": "2001:660:4406:7a0:50d::9",
-      "kavlan-18": "2001:660:4406:8a0:50d::9",
-      "kavlan-2": "2001:660:4406:581:d::9",
-      "kavlan-20": "2001:660:4406:3a0:50d::9",
-      "kavlan-21": "2001:660:4406:6a0:50d::9",
-      "kavlan-3": "2001:660:4406:582:d::9",
-      "kavlan-4": "2001:660:4406:590:d::9",
-      "kavlan-5": "2001:660:4406:591:d::9",
-      "kavlan-6": "2001:660:4406:592:d::9",
-      "kavlan-7": "2001:660:4406:593:d::9",
-      "kavlan-8": "2001:660:4406:594:d::9",
-      "kavlan-9": "2001:660:4406:595:d::9"
+      "kavlan-1": "2001:660:4406:580:d:0::9",
+      "kavlan-11": "2001:660:4406:1a0:50d:0::9",
+      "kavlan-12": "2001:660:4406:2a0:50d:0::9",
+      "kavlan-13": "2001:660:4406:4a0:50d:0::9",
+      "kavlan-14": "2001:660:4406:5a0:50d:0::9",
+      "kavlan-16": "2001:660:4406:7a0:50d:0::9",
+      "kavlan-18": "2001:660:4406:8a0:50d:0::9",
+      "kavlan-2": "2001:660:4406:581:d:0::9",
+      "kavlan-20": "2001:660:4406:3a0:50d:0::9",
+      "kavlan-21": "2001:660:4406:6a0:50d:0::9",
+      "kavlan-3": "2001:660:4406:582:d:0::9",
+      "kavlan-4": "2001:660:4406:590:d:0::9",
+      "kavlan-5": "2001:660:4406:591:d:0::9",
+      "kavlan-6": "2001:660:4406:592:d:0::9",
+      "kavlan-7": "2001:660:4406:593:d:0::9",
+      "kavlan-8": "2001:660:4406:594:d:0::9",
+      "kavlan-9": "2001:660:4406:595:d:0::9"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "firmware_version": "7.10 0x800075e7 19.5.12",
       "interface": "Ethernet",
       "ip": "172.16.76.9",
-      "ip6": "2001:660:4406:500:d::9",
+      "ip6": "2001:660:4406:500:d:0::9",
       "kavlan": true,
       "mac": "3c:fd:fe:59:19:b0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json
index ed78ff86e9f..455f831e1a4 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::1",
-      "kavlan-11": "2001:660:4406:1a0:601::1",
-      "kavlan-12": "2001:660:4406:2a0:601::1",
-      "kavlan-13": "2001:660:4406:4a0:601::1",
-      "kavlan-14": "2001:660:4406:5a0:601::1",
-      "kavlan-16": "2001:660:4406:7a0:601::1",
-      "kavlan-18": "2001:660:4406:8a0:601::1",
-      "kavlan-2": "2001:660:4406:681:1::1",
-      "kavlan-20": "2001:660:4406:3a0:601::1",
-      "kavlan-21": "2001:660:4406:6a0:601::1",
-      "kavlan-3": "2001:660:4406:682:1::1",
-      "kavlan-4": "2001:660:4406:690:1::1",
-      "kavlan-5": "2001:660:4406:691:1::1",
-      "kavlan-6": "2001:660:4406:692:1::1",
-      "kavlan-7": "2001:660:4406:693:1::1",
-      "kavlan-8": "2001:660:4406:694:1::1",
-      "kavlan-9": "2001:660:4406:695:1::1"
+      "kavlan-1": "2001:660:4406:680:1:0::1",
+      "kavlan-11": "2001:660:4406:1a0:601:0::1",
+      "kavlan-12": "2001:660:4406:2a0:601:0::1",
+      "kavlan-13": "2001:660:4406:4a0:601:0::1",
+      "kavlan-14": "2001:660:4406:5a0:601:0::1",
+      "kavlan-16": "2001:660:4406:7a0:601:0::1",
+      "kavlan-18": "2001:660:4406:8a0:601:0::1",
+      "kavlan-2": "2001:660:4406:681:1:0::1",
+      "kavlan-20": "2001:660:4406:3a0:601:0::1",
+      "kavlan-21": "2001:660:4406:6a0:601:0::1",
+      "kavlan-3": "2001:660:4406:682:1:0::1",
+      "kavlan-4": "2001:660:4406:690:1:0::1",
+      "kavlan-5": "2001:660:4406:691:1:0::1",
+      "kavlan-6": "2001:660:4406:692:1:0::1",
+      "kavlan-7": "2001:660:4406:693:1:0::1",
+      "kavlan-8": "2001:660:4406:694:1:0::1",
+      "kavlan-9": "2001:660:4406:695:1:0::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.1",
-      "ip6": "2001:660:4406:600:1::1",
+      "ip6": "2001:660:4406:600:1:0::1",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a1:f4",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-10.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-10.json
index 61f0586fbc7..558ca085a72 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-10.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::a",
-      "kavlan-11": "2001:660:4406:1a0:601::a",
-      "kavlan-12": "2001:660:4406:2a0:601::a",
-      "kavlan-13": "2001:660:4406:4a0:601::a",
-      "kavlan-14": "2001:660:4406:5a0:601::a",
-      "kavlan-16": "2001:660:4406:7a0:601::a",
-      "kavlan-18": "2001:660:4406:8a0:601::a",
-      "kavlan-2": "2001:660:4406:681:1::a",
-      "kavlan-20": "2001:660:4406:3a0:601::a",
-      "kavlan-21": "2001:660:4406:6a0:601::a",
-      "kavlan-3": "2001:660:4406:682:1::a",
-      "kavlan-4": "2001:660:4406:690:1::a",
-      "kavlan-5": "2001:660:4406:691:1::a",
-      "kavlan-6": "2001:660:4406:692:1::a",
-      "kavlan-7": "2001:660:4406:693:1::a",
-      "kavlan-8": "2001:660:4406:694:1::a",
-      "kavlan-9": "2001:660:4406:695:1::a"
+      "kavlan-1": "2001:660:4406:680:1:0::a",
+      "kavlan-11": "2001:660:4406:1a0:601:0::a",
+      "kavlan-12": "2001:660:4406:2a0:601:0::a",
+      "kavlan-13": "2001:660:4406:4a0:601:0::a",
+      "kavlan-14": "2001:660:4406:5a0:601:0::a",
+      "kavlan-16": "2001:660:4406:7a0:601:0::a",
+      "kavlan-18": "2001:660:4406:8a0:601:0::a",
+      "kavlan-2": "2001:660:4406:681:1:0::a",
+      "kavlan-20": "2001:660:4406:3a0:601:0::a",
+      "kavlan-21": "2001:660:4406:6a0:601:0::a",
+      "kavlan-3": "2001:660:4406:682:1:0::a",
+      "kavlan-4": "2001:660:4406:690:1:0::a",
+      "kavlan-5": "2001:660:4406:691:1:0::a",
+      "kavlan-6": "2001:660:4406:692:1:0::a",
+      "kavlan-7": "2001:660:4406:693:1:0::a",
+      "kavlan-8": "2001:660:4406:694:1:0::a",
+      "kavlan-9": "2001:660:4406:695:1:0::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.10",
-      "ip6": "2001:660:4406:600:1::a",
+      "ip6": "2001:660:4406:600:1:0::a",
       "kavlan": true,
       "mac": "a0:36:9f:0e:24:80",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-11.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-11.json
index af53da42f6c..4ea201ba774 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-11.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::b",
-      "kavlan-11": "2001:660:4406:1a0:601::b",
-      "kavlan-12": "2001:660:4406:2a0:601::b",
-      "kavlan-13": "2001:660:4406:4a0:601::b",
-      "kavlan-14": "2001:660:4406:5a0:601::b",
-      "kavlan-16": "2001:660:4406:7a0:601::b",
-      "kavlan-18": "2001:660:4406:8a0:601::b",
-      "kavlan-2": "2001:660:4406:681:1::b",
-      "kavlan-20": "2001:660:4406:3a0:601::b",
-      "kavlan-21": "2001:660:4406:6a0:601::b",
-      "kavlan-3": "2001:660:4406:682:1::b",
-      "kavlan-4": "2001:660:4406:690:1::b",
-      "kavlan-5": "2001:660:4406:691:1::b",
-      "kavlan-6": "2001:660:4406:692:1::b",
-      "kavlan-7": "2001:660:4406:693:1::b",
-      "kavlan-8": "2001:660:4406:694:1::b",
-      "kavlan-9": "2001:660:4406:695:1::b"
+      "kavlan-1": "2001:660:4406:680:1:0::b",
+      "kavlan-11": "2001:660:4406:1a0:601:0::b",
+      "kavlan-12": "2001:660:4406:2a0:601:0::b",
+      "kavlan-13": "2001:660:4406:4a0:601:0::b",
+      "kavlan-14": "2001:660:4406:5a0:601:0::b",
+      "kavlan-16": "2001:660:4406:7a0:601:0::b",
+      "kavlan-18": "2001:660:4406:8a0:601:0::b",
+      "kavlan-2": "2001:660:4406:681:1:0::b",
+      "kavlan-20": "2001:660:4406:3a0:601:0::b",
+      "kavlan-21": "2001:660:4406:6a0:601:0::b",
+      "kavlan-3": "2001:660:4406:682:1:0::b",
+      "kavlan-4": "2001:660:4406:690:1:0::b",
+      "kavlan-5": "2001:660:4406:691:1:0::b",
+      "kavlan-6": "2001:660:4406:692:1:0::b",
+      "kavlan-7": "2001:660:4406:693:1:0::b",
+      "kavlan-8": "2001:660:4406:694:1:0::b",
+      "kavlan-9": "2001:660:4406:695:1:0::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.11",
-      "ip6": "2001:660:4406:600:1::b",
+      "ip6": "2001:660:4406:600:1:0::b",
       "kavlan": true,
       "mac": "a0:36:9f:0e:36:60",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-12.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-12.json
index a4c3cf326b2..d81b9daa531 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-12.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::c",
-      "kavlan-11": "2001:660:4406:1a0:601::c",
-      "kavlan-12": "2001:660:4406:2a0:601::c",
-      "kavlan-13": "2001:660:4406:4a0:601::c",
-      "kavlan-14": "2001:660:4406:5a0:601::c",
-      "kavlan-16": "2001:660:4406:7a0:601::c",
-      "kavlan-18": "2001:660:4406:8a0:601::c",
-      "kavlan-2": "2001:660:4406:681:1::c",
-      "kavlan-20": "2001:660:4406:3a0:601::c",
-      "kavlan-21": "2001:660:4406:6a0:601::c",
-      "kavlan-3": "2001:660:4406:682:1::c",
-      "kavlan-4": "2001:660:4406:690:1::c",
-      "kavlan-5": "2001:660:4406:691:1::c",
-      "kavlan-6": "2001:660:4406:692:1::c",
-      "kavlan-7": "2001:660:4406:693:1::c",
-      "kavlan-8": "2001:660:4406:694:1::c",
-      "kavlan-9": "2001:660:4406:695:1::c"
+      "kavlan-1": "2001:660:4406:680:1:0::c",
+      "kavlan-11": "2001:660:4406:1a0:601:0::c",
+      "kavlan-12": "2001:660:4406:2a0:601:0::c",
+      "kavlan-13": "2001:660:4406:4a0:601:0::c",
+      "kavlan-14": "2001:660:4406:5a0:601:0::c",
+      "kavlan-16": "2001:660:4406:7a0:601:0::c",
+      "kavlan-18": "2001:660:4406:8a0:601:0::c",
+      "kavlan-2": "2001:660:4406:681:1:0::c",
+      "kavlan-20": "2001:660:4406:3a0:601:0::c",
+      "kavlan-21": "2001:660:4406:6a0:601:0::c",
+      "kavlan-3": "2001:660:4406:682:1:0::c",
+      "kavlan-4": "2001:660:4406:690:1:0::c",
+      "kavlan-5": "2001:660:4406:691:1:0::c",
+      "kavlan-6": "2001:660:4406:692:1:0::c",
+      "kavlan-7": "2001:660:4406:693:1:0::c",
+      "kavlan-8": "2001:660:4406:694:1:0::c",
+      "kavlan-9": "2001:660:4406:695:1:0::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.12",
-      "ip6": "2001:660:4406:600:1::c",
+      "ip6": "2001:660:4406:600:1:0::c",
       "kavlan": true,
       "mac": "a0:36:9f:0e:26:e4",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-13.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-13.json
index 829446f61c3..92ef339cbee 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-13.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::d",
-      "kavlan-11": "2001:660:4406:1a0:601::d",
-      "kavlan-12": "2001:660:4406:2a0:601::d",
-      "kavlan-13": "2001:660:4406:4a0:601::d",
-      "kavlan-14": "2001:660:4406:5a0:601::d",
-      "kavlan-16": "2001:660:4406:7a0:601::d",
-      "kavlan-18": "2001:660:4406:8a0:601::d",
-      "kavlan-2": "2001:660:4406:681:1::d",
-      "kavlan-20": "2001:660:4406:3a0:601::d",
-      "kavlan-21": "2001:660:4406:6a0:601::d",
-      "kavlan-3": "2001:660:4406:682:1::d",
-      "kavlan-4": "2001:660:4406:690:1::d",
-      "kavlan-5": "2001:660:4406:691:1::d",
-      "kavlan-6": "2001:660:4406:692:1::d",
-      "kavlan-7": "2001:660:4406:693:1::d",
-      "kavlan-8": "2001:660:4406:694:1::d",
-      "kavlan-9": "2001:660:4406:695:1::d"
+      "kavlan-1": "2001:660:4406:680:1:0::d",
+      "kavlan-11": "2001:660:4406:1a0:601:0::d",
+      "kavlan-12": "2001:660:4406:2a0:601:0::d",
+      "kavlan-13": "2001:660:4406:4a0:601:0::d",
+      "kavlan-14": "2001:660:4406:5a0:601:0::d",
+      "kavlan-16": "2001:660:4406:7a0:601:0::d",
+      "kavlan-18": "2001:660:4406:8a0:601:0::d",
+      "kavlan-2": "2001:660:4406:681:1:0::d",
+      "kavlan-20": "2001:660:4406:3a0:601:0::d",
+      "kavlan-21": "2001:660:4406:6a0:601:0::d",
+      "kavlan-3": "2001:660:4406:682:1:0::d",
+      "kavlan-4": "2001:660:4406:690:1:0::d",
+      "kavlan-5": "2001:660:4406:691:1:0::d",
+      "kavlan-6": "2001:660:4406:692:1:0::d",
+      "kavlan-7": "2001:660:4406:693:1:0::d",
+      "kavlan-8": "2001:660:4406:694:1:0::d",
+      "kavlan-9": "2001:660:4406:695:1:0::d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.13",
-      "ip6": "2001:660:4406:600:1::d",
+      "ip6": "2001:660:4406:600:1:0::d",
       "kavlan": true,
       "mac": "a0:36:9f:0e:23:d4",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-14.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-14.json
index 3805ab92926..acdc338db31 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-14.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::e",
-      "kavlan-11": "2001:660:4406:1a0:601::e",
-      "kavlan-12": "2001:660:4406:2a0:601::e",
-      "kavlan-13": "2001:660:4406:4a0:601::e",
-      "kavlan-14": "2001:660:4406:5a0:601::e",
-      "kavlan-16": "2001:660:4406:7a0:601::e",
-      "kavlan-18": "2001:660:4406:8a0:601::e",
-      "kavlan-2": "2001:660:4406:681:1::e",
-      "kavlan-20": "2001:660:4406:3a0:601::e",
-      "kavlan-21": "2001:660:4406:6a0:601::e",
-      "kavlan-3": "2001:660:4406:682:1::e",
-      "kavlan-4": "2001:660:4406:690:1::e",
-      "kavlan-5": "2001:660:4406:691:1::e",
-      "kavlan-6": "2001:660:4406:692:1::e",
-      "kavlan-7": "2001:660:4406:693:1::e",
-      "kavlan-8": "2001:660:4406:694:1::e",
-      "kavlan-9": "2001:660:4406:695:1::e"
+      "kavlan-1": "2001:660:4406:680:1:0::e",
+      "kavlan-11": "2001:660:4406:1a0:601:0::e",
+      "kavlan-12": "2001:660:4406:2a0:601:0::e",
+      "kavlan-13": "2001:660:4406:4a0:601:0::e",
+      "kavlan-14": "2001:660:4406:5a0:601:0::e",
+      "kavlan-16": "2001:660:4406:7a0:601:0::e",
+      "kavlan-18": "2001:660:4406:8a0:601:0::e",
+      "kavlan-2": "2001:660:4406:681:1:0::e",
+      "kavlan-20": "2001:660:4406:3a0:601:0::e",
+      "kavlan-21": "2001:660:4406:6a0:601:0::e",
+      "kavlan-3": "2001:660:4406:682:1:0::e",
+      "kavlan-4": "2001:660:4406:690:1:0::e",
+      "kavlan-5": "2001:660:4406:691:1:0::e",
+      "kavlan-6": "2001:660:4406:692:1:0::e",
+      "kavlan-7": "2001:660:4406:693:1:0::e",
+      "kavlan-8": "2001:660:4406:694:1:0::e",
+      "kavlan-9": "2001:660:4406:695:1:0::e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.14",
-      "ip6": "2001:660:4406:600:1::e",
+      "ip6": "2001:660:4406:600:1:0::e",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a2:b8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-15.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-15.json
index 37cb494a4b9..dab69e2f5fe 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-15.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::f",
-      "kavlan-11": "2001:660:4406:1a0:601::f",
-      "kavlan-12": "2001:660:4406:2a0:601::f",
-      "kavlan-13": "2001:660:4406:4a0:601::f",
-      "kavlan-14": "2001:660:4406:5a0:601::f",
-      "kavlan-16": "2001:660:4406:7a0:601::f",
-      "kavlan-18": "2001:660:4406:8a0:601::f",
-      "kavlan-2": "2001:660:4406:681:1::f",
-      "kavlan-20": "2001:660:4406:3a0:601::f",
-      "kavlan-21": "2001:660:4406:6a0:601::f",
-      "kavlan-3": "2001:660:4406:682:1::f",
-      "kavlan-4": "2001:660:4406:690:1::f",
-      "kavlan-5": "2001:660:4406:691:1::f",
-      "kavlan-6": "2001:660:4406:692:1::f",
-      "kavlan-7": "2001:660:4406:693:1::f",
-      "kavlan-8": "2001:660:4406:694:1::f",
-      "kavlan-9": "2001:660:4406:695:1::f"
+      "kavlan-1": "2001:660:4406:680:1:0::f",
+      "kavlan-11": "2001:660:4406:1a0:601:0::f",
+      "kavlan-12": "2001:660:4406:2a0:601:0::f",
+      "kavlan-13": "2001:660:4406:4a0:601:0::f",
+      "kavlan-14": "2001:660:4406:5a0:601:0::f",
+      "kavlan-16": "2001:660:4406:7a0:601:0::f",
+      "kavlan-18": "2001:660:4406:8a0:601:0::f",
+      "kavlan-2": "2001:660:4406:681:1:0::f",
+      "kavlan-20": "2001:660:4406:3a0:601:0::f",
+      "kavlan-21": "2001:660:4406:6a0:601:0::f",
+      "kavlan-3": "2001:660:4406:682:1:0::f",
+      "kavlan-4": "2001:660:4406:690:1:0::f",
+      "kavlan-5": "2001:660:4406:691:1:0::f",
+      "kavlan-6": "2001:660:4406:692:1:0::f",
+      "kavlan-7": "2001:660:4406:693:1:0::f",
+      "kavlan-8": "2001:660:4406:694:1:0::f",
+      "kavlan-9": "2001:660:4406:695:1:0::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.15",
-      "ip6": "2001:660:4406:600:1::f",
+      "ip6": "2001:660:4406:600:1:0::f",
       "kavlan": true,
       "mac": "a0:36:9f:01:fd:70",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-16.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-16.json
index e4091860b71..bdc91c9a5b3 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-16.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::10",
-      "kavlan-11": "2001:660:4406:1a0:601::10",
-      "kavlan-12": "2001:660:4406:2a0:601::10",
-      "kavlan-13": "2001:660:4406:4a0:601::10",
-      "kavlan-14": "2001:660:4406:5a0:601::10",
-      "kavlan-16": "2001:660:4406:7a0:601::10",
-      "kavlan-18": "2001:660:4406:8a0:601::10",
-      "kavlan-2": "2001:660:4406:681:1::10",
-      "kavlan-20": "2001:660:4406:3a0:601::10",
-      "kavlan-21": "2001:660:4406:6a0:601::10",
-      "kavlan-3": "2001:660:4406:682:1::10",
-      "kavlan-4": "2001:660:4406:690:1::10",
-      "kavlan-5": "2001:660:4406:691:1::10",
-      "kavlan-6": "2001:660:4406:692:1::10",
-      "kavlan-7": "2001:660:4406:693:1::10",
-      "kavlan-8": "2001:660:4406:694:1::10",
-      "kavlan-9": "2001:660:4406:695:1::10"
+      "kavlan-1": "2001:660:4406:680:1:0::10",
+      "kavlan-11": "2001:660:4406:1a0:601:0::10",
+      "kavlan-12": "2001:660:4406:2a0:601:0::10",
+      "kavlan-13": "2001:660:4406:4a0:601:0::10",
+      "kavlan-14": "2001:660:4406:5a0:601:0::10",
+      "kavlan-16": "2001:660:4406:7a0:601:0::10",
+      "kavlan-18": "2001:660:4406:8a0:601:0::10",
+      "kavlan-2": "2001:660:4406:681:1:0::10",
+      "kavlan-20": "2001:660:4406:3a0:601:0::10",
+      "kavlan-21": "2001:660:4406:6a0:601:0::10",
+      "kavlan-3": "2001:660:4406:682:1:0::10",
+      "kavlan-4": "2001:660:4406:690:1:0::10",
+      "kavlan-5": "2001:660:4406:691:1:0::10",
+      "kavlan-6": "2001:660:4406:692:1:0::10",
+      "kavlan-7": "2001:660:4406:693:1:0::10",
+      "kavlan-8": "2001:660:4406:694:1:0::10",
+      "kavlan-9": "2001:660:4406:695:1:0::10"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.16",
-      "ip6": "2001:660:4406:600:1::10",
+      "ip6": "2001:660:4406:600:1:0::10",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a7:dc",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-17.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-17.json
index c532c3f95af..6bb26612044 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-17.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::11",
-      "kavlan-11": "2001:660:4406:1a0:601::11",
-      "kavlan-12": "2001:660:4406:2a0:601::11",
-      "kavlan-13": "2001:660:4406:4a0:601::11",
-      "kavlan-14": "2001:660:4406:5a0:601::11",
-      "kavlan-16": "2001:660:4406:7a0:601::11",
-      "kavlan-18": "2001:660:4406:8a0:601::11",
-      "kavlan-2": "2001:660:4406:681:1::11",
-      "kavlan-20": "2001:660:4406:3a0:601::11",
-      "kavlan-21": "2001:660:4406:6a0:601::11",
-      "kavlan-3": "2001:660:4406:682:1::11",
-      "kavlan-4": "2001:660:4406:690:1::11",
-      "kavlan-5": "2001:660:4406:691:1::11",
-      "kavlan-6": "2001:660:4406:692:1::11",
-      "kavlan-7": "2001:660:4406:693:1::11",
-      "kavlan-8": "2001:660:4406:694:1::11",
-      "kavlan-9": "2001:660:4406:695:1::11"
+      "kavlan-1": "2001:660:4406:680:1:0::11",
+      "kavlan-11": "2001:660:4406:1a0:601:0::11",
+      "kavlan-12": "2001:660:4406:2a0:601:0::11",
+      "kavlan-13": "2001:660:4406:4a0:601:0::11",
+      "kavlan-14": "2001:660:4406:5a0:601:0::11",
+      "kavlan-16": "2001:660:4406:7a0:601:0::11",
+      "kavlan-18": "2001:660:4406:8a0:601:0::11",
+      "kavlan-2": "2001:660:4406:681:1:0::11",
+      "kavlan-20": "2001:660:4406:3a0:601:0::11",
+      "kavlan-21": "2001:660:4406:6a0:601:0::11",
+      "kavlan-3": "2001:660:4406:682:1:0::11",
+      "kavlan-4": "2001:660:4406:690:1:0::11",
+      "kavlan-5": "2001:660:4406:691:1:0::11",
+      "kavlan-6": "2001:660:4406:692:1:0::11",
+      "kavlan-7": "2001:660:4406:693:1:0::11",
+      "kavlan-8": "2001:660:4406:694:1:0::11",
+      "kavlan-9": "2001:660:4406:695:1:0::11"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.17",
-      "ip6": "2001:660:4406:600:1::11",
+      "ip6": "2001:660:4406:600:1:0::11",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a2:64",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-18.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-18.json
index cf14bdf2b51..f90f37bb3d8 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-18.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::12",
-      "kavlan-11": "2001:660:4406:1a0:601::12",
-      "kavlan-12": "2001:660:4406:2a0:601::12",
-      "kavlan-13": "2001:660:4406:4a0:601::12",
-      "kavlan-14": "2001:660:4406:5a0:601::12",
-      "kavlan-16": "2001:660:4406:7a0:601::12",
-      "kavlan-18": "2001:660:4406:8a0:601::12",
-      "kavlan-2": "2001:660:4406:681:1::12",
-      "kavlan-20": "2001:660:4406:3a0:601::12",
-      "kavlan-21": "2001:660:4406:6a0:601::12",
-      "kavlan-3": "2001:660:4406:682:1::12",
-      "kavlan-4": "2001:660:4406:690:1::12",
-      "kavlan-5": "2001:660:4406:691:1::12",
-      "kavlan-6": "2001:660:4406:692:1::12",
-      "kavlan-7": "2001:660:4406:693:1::12",
-      "kavlan-8": "2001:660:4406:694:1::12",
-      "kavlan-9": "2001:660:4406:695:1::12"
+      "kavlan-1": "2001:660:4406:680:1:0::12",
+      "kavlan-11": "2001:660:4406:1a0:601:0::12",
+      "kavlan-12": "2001:660:4406:2a0:601:0::12",
+      "kavlan-13": "2001:660:4406:4a0:601:0::12",
+      "kavlan-14": "2001:660:4406:5a0:601:0::12",
+      "kavlan-16": "2001:660:4406:7a0:601:0::12",
+      "kavlan-18": "2001:660:4406:8a0:601:0::12",
+      "kavlan-2": "2001:660:4406:681:1:0::12",
+      "kavlan-20": "2001:660:4406:3a0:601:0::12",
+      "kavlan-21": "2001:660:4406:6a0:601:0::12",
+      "kavlan-3": "2001:660:4406:682:1:0::12",
+      "kavlan-4": "2001:660:4406:690:1:0::12",
+      "kavlan-5": "2001:660:4406:691:1:0::12",
+      "kavlan-6": "2001:660:4406:692:1:0::12",
+      "kavlan-7": "2001:660:4406:693:1:0::12",
+      "kavlan-8": "2001:660:4406:694:1:0::12",
+      "kavlan-9": "2001:660:4406:695:1:0::12"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.18",
-      "ip6": "2001:660:4406:600:1::12",
+      "ip6": "2001:660:4406:600:1:0::12",
       "kavlan": true,
       "mac": "a0:36:9f:0e:36:a0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-19.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-19.json
index 24f1bf4cc3d..934867b97d4 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-19.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::13",
-      "kavlan-11": "2001:660:4406:1a0:601::13",
-      "kavlan-12": "2001:660:4406:2a0:601::13",
-      "kavlan-13": "2001:660:4406:4a0:601::13",
-      "kavlan-14": "2001:660:4406:5a0:601::13",
-      "kavlan-16": "2001:660:4406:7a0:601::13",
-      "kavlan-18": "2001:660:4406:8a0:601::13",
-      "kavlan-2": "2001:660:4406:681:1::13",
-      "kavlan-20": "2001:660:4406:3a0:601::13",
-      "kavlan-21": "2001:660:4406:6a0:601::13",
-      "kavlan-3": "2001:660:4406:682:1::13",
-      "kavlan-4": "2001:660:4406:690:1::13",
-      "kavlan-5": "2001:660:4406:691:1::13",
-      "kavlan-6": "2001:660:4406:692:1::13",
-      "kavlan-7": "2001:660:4406:693:1::13",
-      "kavlan-8": "2001:660:4406:694:1::13",
-      "kavlan-9": "2001:660:4406:695:1::13"
+      "kavlan-1": "2001:660:4406:680:1:0::13",
+      "kavlan-11": "2001:660:4406:1a0:601:0::13",
+      "kavlan-12": "2001:660:4406:2a0:601:0::13",
+      "kavlan-13": "2001:660:4406:4a0:601:0::13",
+      "kavlan-14": "2001:660:4406:5a0:601:0::13",
+      "kavlan-16": "2001:660:4406:7a0:601:0::13",
+      "kavlan-18": "2001:660:4406:8a0:601:0::13",
+      "kavlan-2": "2001:660:4406:681:1:0::13",
+      "kavlan-20": "2001:660:4406:3a0:601:0::13",
+      "kavlan-21": "2001:660:4406:6a0:601:0::13",
+      "kavlan-3": "2001:660:4406:682:1:0::13",
+      "kavlan-4": "2001:660:4406:690:1:0::13",
+      "kavlan-5": "2001:660:4406:691:1:0::13",
+      "kavlan-6": "2001:660:4406:692:1:0::13",
+      "kavlan-7": "2001:660:4406:693:1:0::13",
+      "kavlan-8": "2001:660:4406:694:1:0::13",
+      "kavlan-9": "2001:660:4406:695:1:0::13"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x000161b2",
       "interface": "Ethernet",
       "ip": "172.16.192.19",
-      "ip6": "2001:660:4406:600:1::13",
+      "ip6": "2001:660:4406:600:1:0::13",
       "kavlan": true,
       "mac": "90:e2:ba:1a:6a:e0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json
index 54ee5cc6013..7be537093f4 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::2",
-      "kavlan-11": "2001:660:4406:1a0:601::2",
-      "kavlan-12": "2001:660:4406:2a0:601::2",
-      "kavlan-13": "2001:660:4406:4a0:601::2",
-      "kavlan-14": "2001:660:4406:5a0:601::2",
-      "kavlan-16": "2001:660:4406:7a0:601::2",
-      "kavlan-18": "2001:660:4406:8a0:601::2",
-      "kavlan-2": "2001:660:4406:681:1::2",
-      "kavlan-20": "2001:660:4406:3a0:601::2",
-      "kavlan-21": "2001:660:4406:6a0:601::2",
-      "kavlan-3": "2001:660:4406:682:1::2",
-      "kavlan-4": "2001:660:4406:690:1::2",
-      "kavlan-5": "2001:660:4406:691:1::2",
-      "kavlan-6": "2001:660:4406:692:1::2",
-      "kavlan-7": "2001:660:4406:693:1::2",
-      "kavlan-8": "2001:660:4406:694:1::2",
-      "kavlan-9": "2001:660:4406:695:1::2"
+      "kavlan-1": "2001:660:4406:680:1:0::2",
+      "kavlan-11": "2001:660:4406:1a0:601:0::2",
+      "kavlan-12": "2001:660:4406:2a0:601:0::2",
+      "kavlan-13": "2001:660:4406:4a0:601:0::2",
+      "kavlan-14": "2001:660:4406:5a0:601:0::2",
+      "kavlan-16": "2001:660:4406:7a0:601:0::2",
+      "kavlan-18": "2001:660:4406:8a0:601:0::2",
+      "kavlan-2": "2001:660:4406:681:1:0::2",
+      "kavlan-20": "2001:660:4406:3a0:601:0::2",
+      "kavlan-21": "2001:660:4406:6a0:601:0::2",
+      "kavlan-3": "2001:660:4406:682:1:0::2",
+      "kavlan-4": "2001:660:4406:690:1:0::2",
+      "kavlan-5": "2001:660:4406:691:1:0::2",
+      "kavlan-6": "2001:660:4406:692:1:0::2",
+      "kavlan-7": "2001:660:4406:693:1:0::2",
+      "kavlan-8": "2001:660:4406:694:1:0::2",
+      "kavlan-9": "2001:660:4406:695:1:0::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.2",
-      "ip6": "2001:660:4406:600:1::2",
+      "ip6": "2001:660:4406:600:1:0::2",
       "kavlan": true,
       "mac": "a0:36:9f:0e:36:38",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-20.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-20.json
index d0fc7b84fbe..827b91ff4f8 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-20.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::14",
-      "kavlan-11": "2001:660:4406:1a0:601::14",
-      "kavlan-12": "2001:660:4406:2a0:601::14",
-      "kavlan-13": "2001:660:4406:4a0:601::14",
-      "kavlan-14": "2001:660:4406:5a0:601::14",
-      "kavlan-16": "2001:660:4406:7a0:601::14",
-      "kavlan-18": "2001:660:4406:8a0:601::14",
-      "kavlan-2": "2001:660:4406:681:1::14",
-      "kavlan-20": "2001:660:4406:3a0:601::14",
-      "kavlan-21": "2001:660:4406:6a0:601::14",
-      "kavlan-3": "2001:660:4406:682:1::14",
-      "kavlan-4": "2001:660:4406:690:1::14",
-      "kavlan-5": "2001:660:4406:691:1::14",
-      "kavlan-6": "2001:660:4406:692:1::14",
-      "kavlan-7": "2001:660:4406:693:1::14",
-      "kavlan-8": "2001:660:4406:694:1::14",
-      "kavlan-9": "2001:660:4406:695:1::14"
+      "kavlan-1": "2001:660:4406:680:1:0::14",
+      "kavlan-11": "2001:660:4406:1a0:601:0::14",
+      "kavlan-12": "2001:660:4406:2a0:601:0::14",
+      "kavlan-13": "2001:660:4406:4a0:601:0::14",
+      "kavlan-14": "2001:660:4406:5a0:601:0::14",
+      "kavlan-16": "2001:660:4406:7a0:601:0::14",
+      "kavlan-18": "2001:660:4406:8a0:601:0::14",
+      "kavlan-2": "2001:660:4406:681:1:0::14",
+      "kavlan-20": "2001:660:4406:3a0:601:0::14",
+      "kavlan-21": "2001:660:4406:6a0:601:0::14",
+      "kavlan-3": "2001:660:4406:682:1:0::14",
+      "kavlan-4": "2001:660:4406:690:1:0::14",
+      "kavlan-5": "2001:660:4406:691:1:0::14",
+      "kavlan-6": "2001:660:4406:692:1:0::14",
+      "kavlan-7": "2001:660:4406:693:1:0::14",
+      "kavlan-8": "2001:660:4406:694:1:0::14",
+      "kavlan-9": "2001:660:4406:695:1:0::14"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x000161b2",
       "interface": "Ethernet",
       "ip": "172.16.192.20",
-      "ip6": "2001:660:4406:600:1::14",
+      "ip6": "2001:660:4406:600:1:0::14",
       "kavlan": true,
       "mac": "90:e2:ba:1a:6b:3c",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-21.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-21.json
index 831cc36d3a3..99c6d01fd7d 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-21.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::15",
-      "kavlan-11": "2001:660:4406:1a0:601::15",
-      "kavlan-12": "2001:660:4406:2a0:601::15",
-      "kavlan-13": "2001:660:4406:4a0:601::15",
-      "kavlan-14": "2001:660:4406:5a0:601::15",
-      "kavlan-16": "2001:660:4406:7a0:601::15",
-      "kavlan-18": "2001:660:4406:8a0:601::15",
-      "kavlan-2": "2001:660:4406:681:1::15",
-      "kavlan-20": "2001:660:4406:3a0:601::15",
-      "kavlan-21": "2001:660:4406:6a0:601::15",
-      "kavlan-3": "2001:660:4406:682:1::15",
-      "kavlan-4": "2001:660:4406:690:1::15",
-      "kavlan-5": "2001:660:4406:691:1::15",
-      "kavlan-6": "2001:660:4406:692:1::15",
-      "kavlan-7": "2001:660:4406:693:1::15",
-      "kavlan-8": "2001:660:4406:694:1::15",
-      "kavlan-9": "2001:660:4406:695:1::15"
+      "kavlan-1": "2001:660:4406:680:1:0::15",
+      "kavlan-11": "2001:660:4406:1a0:601:0::15",
+      "kavlan-12": "2001:660:4406:2a0:601:0::15",
+      "kavlan-13": "2001:660:4406:4a0:601:0::15",
+      "kavlan-14": "2001:660:4406:5a0:601:0::15",
+      "kavlan-16": "2001:660:4406:7a0:601:0::15",
+      "kavlan-18": "2001:660:4406:8a0:601:0::15",
+      "kavlan-2": "2001:660:4406:681:1:0::15",
+      "kavlan-20": "2001:660:4406:3a0:601:0::15",
+      "kavlan-21": "2001:660:4406:6a0:601:0::15",
+      "kavlan-3": "2001:660:4406:682:1:0::15",
+      "kavlan-4": "2001:660:4406:690:1:0::15",
+      "kavlan-5": "2001:660:4406:691:1:0::15",
+      "kavlan-6": "2001:660:4406:692:1:0::15",
+      "kavlan-7": "2001:660:4406:693:1:0::15",
+      "kavlan-8": "2001:660:4406:694:1:0::15",
+      "kavlan-9": "2001:660:4406:695:1:0::15"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x000161b2",
       "interface": "Ethernet",
       "ip": "172.16.192.21",
-      "ip6": "2001:660:4406:600:1::15",
+      "ip6": "2001:660:4406:600:1:0::15",
       "kavlan": true,
       "mac": "90:e2:ba:1a:69:98",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-22.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-22.json
index fa6334ec076..87330b913c5 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-22.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::16",
-      "kavlan-11": "2001:660:4406:1a0:601::16",
-      "kavlan-12": "2001:660:4406:2a0:601::16",
-      "kavlan-13": "2001:660:4406:4a0:601::16",
-      "kavlan-14": "2001:660:4406:5a0:601::16",
-      "kavlan-16": "2001:660:4406:7a0:601::16",
-      "kavlan-18": "2001:660:4406:8a0:601::16",
-      "kavlan-2": "2001:660:4406:681:1::16",
-      "kavlan-20": "2001:660:4406:3a0:601::16",
-      "kavlan-21": "2001:660:4406:6a0:601::16",
-      "kavlan-3": "2001:660:4406:682:1::16",
-      "kavlan-4": "2001:660:4406:690:1::16",
-      "kavlan-5": "2001:660:4406:691:1::16",
-      "kavlan-6": "2001:660:4406:692:1::16",
-      "kavlan-7": "2001:660:4406:693:1::16",
-      "kavlan-8": "2001:660:4406:694:1::16",
-      "kavlan-9": "2001:660:4406:695:1::16"
+      "kavlan-1": "2001:660:4406:680:1:0::16",
+      "kavlan-11": "2001:660:4406:1a0:601:0::16",
+      "kavlan-12": "2001:660:4406:2a0:601:0::16",
+      "kavlan-13": "2001:660:4406:4a0:601:0::16",
+      "kavlan-14": "2001:660:4406:5a0:601:0::16",
+      "kavlan-16": "2001:660:4406:7a0:601:0::16",
+      "kavlan-18": "2001:660:4406:8a0:601:0::16",
+      "kavlan-2": "2001:660:4406:681:1:0::16",
+      "kavlan-20": "2001:660:4406:3a0:601:0::16",
+      "kavlan-21": "2001:660:4406:6a0:601:0::16",
+      "kavlan-3": "2001:660:4406:682:1:0::16",
+      "kavlan-4": "2001:660:4406:690:1:0::16",
+      "kavlan-5": "2001:660:4406:691:1:0::16",
+      "kavlan-6": "2001:660:4406:692:1:0::16",
+      "kavlan-7": "2001:660:4406:693:1:0::16",
+      "kavlan-8": "2001:660:4406:694:1:0::16",
+      "kavlan-9": "2001:660:4406:695:1:0::16"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x000161b2",
       "interface": "Ethernet",
       "ip": "172.16.192.22",
-      "ip6": "2001:660:4406:600:1::16",
+      "ip6": "2001:660:4406:600:1:0::16",
       "kavlan": true,
       "mac": "90:e2:ba:1a:69:c0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-3.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-3.json
index a48b4eb1453..4764bf8ebc1 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-3.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::3",
-      "kavlan-11": "2001:660:4406:1a0:601::3",
-      "kavlan-12": "2001:660:4406:2a0:601::3",
-      "kavlan-13": "2001:660:4406:4a0:601::3",
-      "kavlan-14": "2001:660:4406:5a0:601::3",
-      "kavlan-16": "2001:660:4406:7a0:601::3",
-      "kavlan-18": "2001:660:4406:8a0:601::3",
-      "kavlan-2": "2001:660:4406:681:1::3",
-      "kavlan-20": "2001:660:4406:3a0:601::3",
-      "kavlan-21": "2001:660:4406:6a0:601::3",
-      "kavlan-3": "2001:660:4406:682:1::3",
-      "kavlan-4": "2001:660:4406:690:1::3",
-      "kavlan-5": "2001:660:4406:691:1::3",
-      "kavlan-6": "2001:660:4406:692:1::3",
-      "kavlan-7": "2001:660:4406:693:1::3",
-      "kavlan-8": "2001:660:4406:694:1::3",
-      "kavlan-9": "2001:660:4406:695:1::3"
+      "kavlan-1": "2001:660:4406:680:1:0::3",
+      "kavlan-11": "2001:660:4406:1a0:601:0::3",
+      "kavlan-12": "2001:660:4406:2a0:601:0::3",
+      "kavlan-13": "2001:660:4406:4a0:601:0::3",
+      "kavlan-14": "2001:660:4406:5a0:601:0::3",
+      "kavlan-16": "2001:660:4406:7a0:601:0::3",
+      "kavlan-18": "2001:660:4406:8a0:601:0::3",
+      "kavlan-2": "2001:660:4406:681:1:0::3",
+      "kavlan-20": "2001:660:4406:3a0:601:0::3",
+      "kavlan-21": "2001:660:4406:6a0:601:0::3",
+      "kavlan-3": "2001:660:4406:682:1:0::3",
+      "kavlan-4": "2001:660:4406:690:1:0::3",
+      "kavlan-5": "2001:660:4406:691:1:0::3",
+      "kavlan-6": "2001:660:4406:692:1:0::3",
+      "kavlan-7": "2001:660:4406:693:1:0::3",
+      "kavlan-8": "2001:660:4406:694:1:0::3",
+      "kavlan-9": "2001:660:4406:695:1:0::3"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.3",
-      "ip6": "2001:660:4406:600:1::3",
+      "ip6": "2001:660:4406:600:1:0::3",
       "kavlan": true,
       "mac": "a0:36:9f:0e:35:b0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-4.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-4.json
index bc4e89287e9..d6884f85b43 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-4.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::4",
-      "kavlan-11": "2001:660:4406:1a0:601::4",
-      "kavlan-12": "2001:660:4406:2a0:601::4",
-      "kavlan-13": "2001:660:4406:4a0:601::4",
-      "kavlan-14": "2001:660:4406:5a0:601::4",
-      "kavlan-16": "2001:660:4406:7a0:601::4",
-      "kavlan-18": "2001:660:4406:8a0:601::4",
-      "kavlan-2": "2001:660:4406:681:1::4",
-      "kavlan-20": "2001:660:4406:3a0:601::4",
-      "kavlan-21": "2001:660:4406:6a0:601::4",
-      "kavlan-3": "2001:660:4406:682:1::4",
-      "kavlan-4": "2001:660:4406:690:1::4",
-      "kavlan-5": "2001:660:4406:691:1::4",
-      "kavlan-6": "2001:660:4406:692:1::4",
-      "kavlan-7": "2001:660:4406:693:1::4",
-      "kavlan-8": "2001:660:4406:694:1::4",
-      "kavlan-9": "2001:660:4406:695:1::4"
+      "kavlan-1": "2001:660:4406:680:1:0::4",
+      "kavlan-11": "2001:660:4406:1a0:601:0::4",
+      "kavlan-12": "2001:660:4406:2a0:601:0::4",
+      "kavlan-13": "2001:660:4406:4a0:601:0::4",
+      "kavlan-14": "2001:660:4406:5a0:601:0::4",
+      "kavlan-16": "2001:660:4406:7a0:601:0::4",
+      "kavlan-18": "2001:660:4406:8a0:601:0::4",
+      "kavlan-2": "2001:660:4406:681:1:0::4",
+      "kavlan-20": "2001:660:4406:3a0:601:0::4",
+      "kavlan-21": "2001:660:4406:6a0:601:0::4",
+      "kavlan-3": "2001:660:4406:682:1:0::4",
+      "kavlan-4": "2001:660:4406:690:1:0::4",
+      "kavlan-5": "2001:660:4406:691:1:0::4",
+      "kavlan-6": "2001:660:4406:692:1:0::4",
+      "kavlan-7": "2001:660:4406:693:1:0::4",
+      "kavlan-8": "2001:660:4406:694:1:0::4",
+      "kavlan-9": "2001:660:4406:695:1:0::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.4",
-      "ip6": "2001:660:4406:600:1::4",
+      "ip6": "2001:660:4406:600:1:0::4",
       "kavlan": true,
       "mac": "a0:36:9f:0e:35:a0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-5.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-5.json
index 722b3014525..eb4db2d4cb2 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-5.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::5",
-      "kavlan-11": "2001:660:4406:1a0:601::5",
-      "kavlan-12": "2001:660:4406:2a0:601::5",
-      "kavlan-13": "2001:660:4406:4a0:601::5",
-      "kavlan-14": "2001:660:4406:5a0:601::5",
-      "kavlan-16": "2001:660:4406:7a0:601::5",
-      "kavlan-18": "2001:660:4406:8a0:601::5",
-      "kavlan-2": "2001:660:4406:681:1::5",
-      "kavlan-20": "2001:660:4406:3a0:601::5",
-      "kavlan-21": "2001:660:4406:6a0:601::5",
-      "kavlan-3": "2001:660:4406:682:1::5",
-      "kavlan-4": "2001:660:4406:690:1::5",
-      "kavlan-5": "2001:660:4406:691:1::5",
-      "kavlan-6": "2001:660:4406:692:1::5",
-      "kavlan-7": "2001:660:4406:693:1::5",
-      "kavlan-8": "2001:660:4406:694:1::5",
-      "kavlan-9": "2001:660:4406:695:1::5"
+      "kavlan-1": "2001:660:4406:680:1:0::5",
+      "kavlan-11": "2001:660:4406:1a0:601:0::5",
+      "kavlan-12": "2001:660:4406:2a0:601:0::5",
+      "kavlan-13": "2001:660:4406:4a0:601:0::5",
+      "kavlan-14": "2001:660:4406:5a0:601:0::5",
+      "kavlan-16": "2001:660:4406:7a0:601:0::5",
+      "kavlan-18": "2001:660:4406:8a0:601:0::5",
+      "kavlan-2": "2001:660:4406:681:1:0::5",
+      "kavlan-20": "2001:660:4406:3a0:601:0::5",
+      "kavlan-21": "2001:660:4406:6a0:601:0::5",
+      "kavlan-3": "2001:660:4406:682:1:0::5",
+      "kavlan-4": "2001:660:4406:690:1:0::5",
+      "kavlan-5": "2001:660:4406:691:1:0::5",
+      "kavlan-6": "2001:660:4406:692:1:0::5",
+      "kavlan-7": "2001:660:4406:693:1:0::5",
+      "kavlan-8": "2001:660:4406:694:1:0::5",
+      "kavlan-9": "2001:660:4406:695:1:0::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.5",
-      "ip6": "2001:660:4406:600:1::5",
+      "ip6": "2001:660:4406:600:1:0::5",
       "kavlan": true,
       "mac": "a0:36:9f:0e:2e:c4",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-6.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-6.json
index 832c2b3898e..fc0b4014bbd 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-6.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::6",
-      "kavlan-11": "2001:660:4406:1a0:601::6",
-      "kavlan-12": "2001:660:4406:2a0:601::6",
-      "kavlan-13": "2001:660:4406:4a0:601::6",
-      "kavlan-14": "2001:660:4406:5a0:601::6",
-      "kavlan-16": "2001:660:4406:7a0:601::6",
-      "kavlan-18": "2001:660:4406:8a0:601::6",
-      "kavlan-2": "2001:660:4406:681:1::6",
-      "kavlan-20": "2001:660:4406:3a0:601::6",
-      "kavlan-21": "2001:660:4406:6a0:601::6",
-      "kavlan-3": "2001:660:4406:682:1::6",
-      "kavlan-4": "2001:660:4406:690:1::6",
-      "kavlan-5": "2001:660:4406:691:1::6",
-      "kavlan-6": "2001:660:4406:692:1::6",
-      "kavlan-7": "2001:660:4406:693:1::6",
-      "kavlan-8": "2001:660:4406:694:1::6",
-      "kavlan-9": "2001:660:4406:695:1::6"
+      "kavlan-1": "2001:660:4406:680:1:0::6",
+      "kavlan-11": "2001:660:4406:1a0:601:0::6",
+      "kavlan-12": "2001:660:4406:2a0:601:0::6",
+      "kavlan-13": "2001:660:4406:4a0:601:0::6",
+      "kavlan-14": "2001:660:4406:5a0:601:0::6",
+      "kavlan-16": "2001:660:4406:7a0:601:0::6",
+      "kavlan-18": "2001:660:4406:8a0:601:0::6",
+      "kavlan-2": "2001:660:4406:681:1:0::6",
+      "kavlan-20": "2001:660:4406:3a0:601:0::6",
+      "kavlan-21": "2001:660:4406:6a0:601:0::6",
+      "kavlan-3": "2001:660:4406:682:1:0::6",
+      "kavlan-4": "2001:660:4406:690:1:0::6",
+      "kavlan-5": "2001:660:4406:691:1:0::6",
+      "kavlan-6": "2001:660:4406:692:1:0::6",
+      "kavlan-7": "2001:660:4406:693:1:0::6",
+      "kavlan-8": "2001:660:4406:694:1:0::6",
+      "kavlan-9": "2001:660:4406:695:1:0::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.6",
-      "ip6": "2001:660:4406:600:1::6",
+      "ip6": "2001:660:4406:600:1:0::6",
       "kavlan": true,
       "mac": "a0:36:9f:0e:a4:90",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-7.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-7.json
index 1220bb49ebc..f9b84c3b2ef 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-7.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::7",
-      "kavlan-11": "2001:660:4406:1a0:601::7",
-      "kavlan-12": "2001:660:4406:2a0:601::7",
-      "kavlan-13": "2001:660:4406:4a0:601::7",
-      "kavlan-14": "2001:660:4406:5a0:601::7",
-      "kavlan-16": "2001:660:4406:7a0:601::7",
-      "kavlan-18": "2001:660:4406:8a0:601::7",
-      "kavlan-2": "2001:660:4406:681:1::7",
-      "kavlan-20": "2001:660:4406:3a0:601::7",
-      "kavlan-21": "2001:660:4406:6a0:601::7",
-      "kavlan-3": "2001:660:4406:682:1::7",
-      "kavlan-4": "2001:660:4406:690:1::7",
-      "kavlan-5": "2001:660:4406:691:1::7",
-      "kavlan-6": "2001:660:4406:692:1::7",
-      "kavlan-7": "2001:660:4406:693:1::7",
-      "kavlan-8": "2001:660:4406:694:1::7",
-      "kavlan-9": "2001:660:4406:695:1::7"
+      "kavlan-1": "2001:660:4406:680:1:0::7",
+      "kavlan-11": "2001:660:4406:1a0:601:0::7",
+      "kavlan-12": "2001:660:4406:2a0:601:0::7",
+      "kavlan-13": "2001:660:4406:4a0:601:0::7",
+      "kavlan-14": "2001:660:4406:5a0:601:0::7",
+      "kavlan-16": "2001:660:4406:7a0:601:0::7",
+      "kavlan-18": "2001:660:4406:8a0:601:0::7",
+      "kavlan-2": "2001:660:4406:681:1:0::7",
+      "kavlan-20": "2001:660:4406:3a0:601:0::7",
+      "kavlan-21": "2001:660:4406:6a0:601:0::7",
+      "kavlan-3": "2001:660:4406:682:1:0::7",
+      "kavlan-4": "2001:660:4406:690:1:0::7",
+      "kavlan-5": "2001:660:4406:691:1:0::7",
+      "kavlan-6": "2001:660:4406:692:1:0::7",
+      "kavlan-7": "2001:660:4406:693:1:0::7",
+      "kavlan-8": "2001:660:4406:694:1:0::7",
+      "kavlan-9": "2001:660:4406:695:1:0::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.7",
-      "ip6": "2001:660:4406:600:1::7",
+      "ip6": "2001:660:4406:600:1:0::7",
       "kavlan": true,
       "mac": "a0:36:9f:0e:24:a8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-8.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-8.json
index fef7936533b..e543e7b1b67 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-8.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::8",
-      "kavlan-11": "2001:660:4406:1a0:601::8",
-      "kavlan-12": "2001:660:4406:2a0:601::8",
-      "kavlan-13": "2001:660:4406:4a0:601::8",
-      "kavlan-14": "2001:660:4406:5a0:601::8",
-      "kavlan-16": "2001:660:4406:7a0:601::8",
-      "kavlan-18": "2001:660:4406:8a0:601::8",
-      "kavlan-2": "2001:660:4406:681:1::8",
-      "kavlan-20": "2001:660:4406:3a0:601::8",
-      "kavlan-21": "2001:660:4406:6a0:601::8",
-      "kavlan-3": "2001:660:4406:682:1::8",
-      "kavlan-4": "2001:660:4406:690:1::8",
-      "kavlan-5": "2001:660:4406:691:1::8",
-      "kavlan-6": "2001:660:4406:692:1::8",
-      "kavlan-7": "2001:660:4406:693:1::8",
-      "kavlan-8": "2001:660:4406:694:1::8",
-      "kavlan-9": "2001:660:4406:695:1::8"
+      "kavlan-1": "2001:660:4406:680:1:0::8",
+      "kavlan-11": "2001:660:4406:1a0:601:0::8",
+      "kavlan-12": "2001:660:4406:2a0:601:0::8",
+      "kavlan-13": "2001:660:4406:4a0:601:0::8",
+      "kavlan-14": "2001:660:4406:5a0:601:0::8",
+      "kavlan-16": "2001:660:4406:7a0:601:0::8",
+      "kavlan-18": "2001:660:4406:8a0:601:0::8",
+      "kavlan-2": "2001:660:4406:681:1:0::8",
+      "kavlan-20": "2001:660:4406:3a0:601:0::8",
+      "kavlan-21": "2001:660:4406:6a0:601:0::8",
+      "kavlan-3": "2001:660:4406:682:1:0::8",
+      "kavlan-4": "2001:660:4406:690:1:0::8",
+      "kavlan-5": "2001:660:4406:691:1:0::8",
+      "kavlan-6": "2001:660:4406:692:1:0::8",
+      "kavlan-7": "2001:660:4406:693:1:0::8",
+      "kavlan-8": "2001:660:4406:694:1:0::8",
+      "kavlan-9": "2001:660:4406:695:1:0::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.8",
-      "ip6": "2001:660:4406:600:1::8",
+      "ip6": "2001:660:4406:600:1:0::8",
       "kavlan": true,
       "mac": "a0:36:9f:0e:24:8c",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-9.json b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-9.json
index 22ea213af0d..8721111b0a3 100644
--- a/data/grid5000/sites/nantes/clusters/econome/nodes/econome-9.json
+++ b/data/grid5000/sites/nantes/clusters/econome/nodes/econome-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:1::9",
-      "kavlan-11": "2001:660:4406:1a0:601::9",
-      "kavlan-12": "2001:660:4406:2a0:601::9",
-      "kavlan-13": "2001:660:4406:4a0:601::9",
-      "kavlan-14": "2001:660:4406:5a0:601::9",
-      "kavlan-16": "2001:660:4406:7a0:601::9",
-      "kavlan-18": "2001:660:4406:8a0:601::9",
-      "kavlan-2": "2001:660:4406:681:1::9",
-      "kavlan-20": "2001:660:4406:3a0:601::9",
-      "kavlan-21": "2001:660:4406:6a0:601::9",
-      "kavlan-3": "2001:660:4406:682:1::9",
-      "kavlan-4": "2001:660:4406:690:1::9",
-      "kavlan-5": "2001:660:4406:691:1::9",
-      "kavlan-6": "2001:660:4406:692:1::9",
-      "kavlan-7": "2001:660:4406:693:1::9",
-      "kavlan-8": "2001:660:4406:694:1::9",
-      "kavlan-9": "2001:660:4406:695:1::9"
+      "kavlan-1": "2001:660:4406:680:1:0::9",
+      "kavlan-11": "2001:660:4406:1a0:601:0::9",
+      "kavlan-12": "2001:660:4406:2a0:601:0::9",
+      "kavlan-13": "2001:660:4406:4a0:601:0::9",
+      "kavlan-14": "2001:660:4406:5a0:601:0::9",
+      "kavlan-16": "2001:660:4406:7a0:601:0::9",
+      "kavlan-18": "2001:660:4406:8a0:601:0::9",
+      "kavlan-2": "2001:660:4406:681:1:0::9",
+      "kavlan-20": "2001:660:4406:3a0:601:0::9",
+      "kavlan-21": "2001:660:4406:6a0:601:0::9",
+      "kavlan-3": "2001:660:4406:682:1:0::9",
+      "kavlan-4": "2001:660:4406:690:1:0::9",
+      "kavlan-5": "2001:660:4406:691:1:0::9",
+      "kavlan-6": "2001:660:4406:692:1:0::9",
+      "kavlan-7": "2001:660:4406:693:1:0::9",
+      "kavlan-8": "2001:660:4406:694:1:0::9",
+      "kavlan-9": "2001:660:4406:695:1:0::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.192.9",
-      "ip6": "2001:660:4406:600:1::9",
+      "ip6": "2001:660:4406:600:1:0::9",
       "kavlan": true,
       "mac": "a0:36:9f:0e:36:34",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-1.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-1.json
index 76676ee334e..2f3bacf2495 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-1.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-1.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::1",
-      "kavlan-11": "2001:660:4406:1a0:602::1",
-      "kavlan-12": "2001:660:4406:2a0:602::1",
-      "kavlan-13": "2001:660:4406:4a0:602::1",
-      "kavlan-14": "2001:660:4406:5a0:602::1",
-      "kavlan-16": "2001:660:4406:7a0:602::1",
-      "kavlan-18": "2001:660:4406:8a0:602::1",
-      "kavlan-2": "2001:660:4406:681:2::1",
-      "kavlan-20": "2001:660:4406:3a0:602::1",
-      "kavlan-21": "2001:660:4406:6a0:602::1",
-      "kavlan-3": "2001:660:4406:682:2::1",
-      "kavlan-4": "2001:660:4406:690:2::1",
-      "kavlan-5": "2001:660:4406:691:2::1",
-      "kavlan-6": "2001:660:4406:692:2::1",
-      "kavlan-7": "2001:660:4406:693:2::1",
-      "kavlan-8": "2001:660:4406:694:2::1",
-      "kavlan-9": "2001:660:4406:695:2::1"
+      "kavlan-1": "2001:660:4406:680:2:0::1",
+      "kavlan-11": "2001:660:4406:1a0:602:0::1",
+      "kavlan-12": "2001:660:4406:2a0:602:0::1",
+      "kavlan-13": "2001:660:4406:4a0:602:0::1",
+      "kavlan-14": "2001:660:4406:5a0:602:0::1",
+      "kavlan-16": "2001:660:4406:7a0:602:0::1",
+      "kavlan-18": "2001:660:4406:8a0:602:0::1",
+      "kavlan-2": "2001:660:4406:681:2:0::1",
+      "kavlan-20": "2001:660:4406:3a0:602:0::1",
+      "kavlan-21": "2001:660:4406:6a0:602:0::1",
+      "kavlan-3": "2001:660:4406:682:2:0::1",
+      "kavlan-4": "2001:660:4406:690:2:0::1",
+      "kavlan-5": "2001:660:4406:691:2:0::1",
+      "kavlan-6": "2001:660:4406:692:2:0::1",
+      "kavlan-7": "2001:660:4406:693:2:0::1",
+      "kavlan-8": "2001:660:4406:694:2:0::1",
+      "kavlan-9": "2001:660:4406:695:2:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::1",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.1",
-      "ip6": "2001:660:4406:600:2::1",
+      "ip6": "2001:660:4406:600:2:0::1",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:e0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-10.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-10.json
index 601a3bc7c45..9175a303979 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-10.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-10.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::a",
-      "kavlan-11": "2001:660:4406:1a0:602::a",
-      "kavlan-12": "2001:660:4406:2a0:602::a",
-      "kavlan-13": "2001:660:4406:4a0:602::a",
-      "kavlan-14": "2001:660:4406:5a0:602::a",
-      "kavlan-16": "2001:660:4406:7a0:602::a",
-      "kavlan-18": "2001:660:4406:8a0:602::a",
-      "kavlan-2": "2001:660:4406:681:2::a",
-      "kavlan-20": "2001:660:4406:3a0:602::a",
-      "kavlan-21": "2001:660:4406:6a0:602::a",
-      "kavlan-3": "2001:660:4406:682:2::a",
-      "kavlan-4": "2001:660:4406:690:2::a",
-      "kavlan-5": "2001:660:4406:691:2::a",
-      "kavlan-6": "2001:660:4406:692:2::a",
-      "kavlan-7": "2001:660:4406:693:2::a",
-      "kavlan-8": "2001:660:4406:694:2::a",
-      "kavlan-9": "2001:660:4406:695:2::a"
+      "kavlan-1": "2001:660:4406:680:2:0::a",
+      "kavlan-11": "2001:660:4406:1a0:602:0::a",
+      "kavlan-12": "2001:660:4406:2a0:602:0::a",
+      "kavlan-13": "2001:660:4406:4a0:602:0::a",
+      "kavlan-14": "2001:660:4406:5a0:602:0::a",
+      "kavlan-16": "2001:660:4406:7a0:602:0::a",
+      "kavlan-18": "2001:660:4406:8a0:602:0::a",
+      "kavlan-2": "2001:660:4406:681:2:0::a",
+      "kavlan-20": "2001:660:4406:3a0:602:0::a",
+      "kavlan-21": "2001:660:4406:6a0:602:0::a",
+      "kavlan-3": "2001:660:4406:682:2:0::a",
+      "kavlan-4": "2001:660:4406:690:2:0::a",
+      "kavlan-5": "2001:660:4406:691:2:0::a",
+      "kavlan-6": "2001:660:4406:692:2:0::a",
+      "kavlan-7": "2001:660:4406:693:2:0::a",
+      "kavlan-8": "2001:660:4406:694:2:0::a",
+      "kavlan-9": "2001:660:4406:695:2:0::a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::a",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.10",
-      "ip6": "2001:660:4406:600:2::a",
+      "ip6": "2001:660:4406:600:2:0::a",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:f8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-11.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-11.json
index ab33ebfca17..e8ad0ee17e6 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-11.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-11.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::b",
-      "kavlan-11": "2001:660:4406:1a0:602::b",
-      "kavlan-12": "2001:660:4406:2a0:602::b",
-      "kavlan-13": "2001:660:4406:4a0:602::b",
-      "kavlan-14": "2001:660:4406:5a0:602::b",
-      "kavlan-16": "2001:660:4406:7a0:602::b",
-      "kavlan-18": "2001:660:4406:8a0:602::b",
-      "kavlan-2": "2001:660:4406:681:2::b",
-      "kavlan-20": "2001:660:4406:3a0:602::b",
-      "kavlan-21": "2001:660:4406:6a0:602::b",
-      "kavlan-3": "2001:660:4406:682:2::b",
-      "kavlan-4": "2001:660:4406:690:2::b",
-      "kavlan-5": "2001:660:4406:691:2::b",
-      "kavlan-6": "2001:660:4406:692:2::b",
-      "kavlan-7": "2001:660:4406:693:2::b",
-      "kavlan-8": "2001:660:4406:694:2::b",
-      "kavlan-9": "2001:660:4406:695:2::b"
+      "kavlan-1": "2001:660:4406:680:2:0::b",
+      "kavlan-11": "2001:660:4406:1a0:602:0::b",
+      "kavlan-12": "2001:660:4406:2a0:602:0::b",
+      "kavlan-13": "2001:660:4406:4a0:602:0::b",
+      "kavlan-14": "2001:660:4406:5a0:602:0::b",
+      "kavlan-16": "2001:660:4406:7a0:602:0::b",
+      "kavlan-18": "2001:660:4406:8a0:602:0::b",
+      "kavlan-2": "2001:660:4406:681:2:0::b",
+      "kavlan-20": "2001:660:4406:3a0:602:0::b",
+      "kavlan-21": "2001:660:4406:6a0:602:0::b",
+      "kavlan-3": "2001:660:4406:682:2:0::b",
+      "kavlan-4": "2001:660:4406:690:2:0::b",
+      "kavlan-5": "2001:660:4406:691:2:0::b",
+      "kavlan-6": "2001:660:4406:692:2:0::b",
+      "kavlan-7": "2001:660:4406:693:2:0::b",
+      "kavlan-8": "2001:660:4406:694:2:0::b",
+      "kavlan-9": "2001:660:4406:695:2:0::b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::b",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.11",
-      "ip6": "2001:660:4406:600:2::b",
+      "ip6": "2001:660:4406:600:2:0::b",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:00",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-12.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-12.json
index a1b4e70bc71..658fa4d5fd2 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-12.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-12.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::c",
-      "kavlan-11": "2001:660:4406:1a0:602::c",
-      "kavlan-12": "2001:660:4406:2a0:602::c",
-      "kavlan-13": "2001:660:4406:4a0:602::c",
-      "kavlan-14": "2001:660:4406:5a0:602::c",
-      "kavlan-16": "2001:660:4406:7a0:602::c",
-      "kavlan-18": "2001:660:4406:8a0:602::c",
-      "kavlan-2": "2001:660:4406:681:2::c",
-      "kavlan-20": "2001:660:4406:3a0:602::c",
-      "kavlan-21": "2001:660:4406:6a0:602::c",
-      "kavlan-3": "2001:660:4406:682:2::c",
-      "kavlan-4": "2001:660:4406:690:2::c",
-      "kavlan-5": "2001:660:4406:691:2::c",
-      "kavlan-6": "2001:660:4406:692:2::c",
-      "kavlan-7": "2001:660:4406:693:2::c",
-      "kavlan-8": "2001:660:4406:694:2::c",
-      "kavlan-9": "2001:660:4406:695:2::c"
+      "kavlan-1": "2001:660:4406:680:2:0::c",
+      "kavlan-11": "2001:660:4406:1a0:602:0::c",
+      "kavlan-12": "2001:660:4406:2a0:602:0::c",
+      "kavlan-13": "2001:660:4406:4a0:602:0::c",
+      "kavlan-14": "2001:660:4406:5a0:602:0::c",
+      "kavlan-16": "2001:660:4406:7a0:602:0::c",
+      "kavlan-18": "2001:660:4406:8a0:602:0::c",
+      "kavlan-2": "2001:660:4406:681:2:0::c",
+      "kavlan-20": "2001:660:4406:3a0:602:0::c",
+      "kavlan-21": "2001:660:4406:6a0:602:0::c",
+      "kavlan-3": "2001:660:4406:682:2:0::c",
+      "kavlan-4": "2001:660:4406:690:2:0::c",
+      "kavlan-5": "2001:660:4406:691:2:0::c",
+      "kavlan-6": "2001:660:4406:692:2:0::c",
+      "kavlan-7": "2001:660:4406:693:2:0::c",
+      "kavlan-8": "2001:660:4406:694:2:0::c",
+      "kavlan-9": "2001:660:4406:695:2:0::c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::c",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.12",
-      "ip6": "2001:660:4406:600:2::c",
+      "ip6": "2001:660:4406:600:2:0::c",
       "kavlan": true,
       "mac": "24:6e:96:6a:52:b8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-13.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-13.json
index 654a7980d19..57fa377fe63 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-13.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-13.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::d",
-      "kavlan-11": "2001:660:4406:1a0:602::d",
-      "kavlan-12": "2001:660:4406:2a0:602::d",
-      "kavlan-13": "2001:660:4406:4a0:602::d",
-      "kavlan-14": "2001:660:4406:5a0:602::d",
-      "kavlan-16": "2001:660:4406:7a0:602::d",
-      "kavlan-18": "2001:660:4406:8a0:602::d",
-      "kavlan-2": "2001:660:4406:681:2::d",
-      "kavlan-20": "2001:660:4406:3a0:602::d",
-      "kavlan-21": "2001:660:4406:6a0:602::d",
-      "kavlan-3": "2001:660:4406:682:2::d",
-      "kavlan-4": "2001:660:4406:690:2::d",
-      "kavlan-5": "2001:660:4406:691:2::d",
-      "kavlan-6": "2001:660:4406:692:2::d",
-      "kavlan-7": "2001:660:4406:693:2::d",
-      "kavlan-8": "2001:660:4406:694:2::d",
-      "kavlan-9": "2001:660:4406:695:2::d"
+      "kavlan-1": "2001:660:4406:680:2:0::d",
+      "kavlan-11": "2001:660:4406:1a0:602:0::d",
+      "kavlan-12": "2001:660:4406:2a0:602:0::d",
+      "kavlan-13": "2001:660:4406:4a0:602:0::d",
+      "kavlan-14": "2001:660:4406:5a0:602:0::d",
+      "kavlan-16": "2001:660:4406:7a0:602:0::d",
+      "kavlan-18": "2001:660:4406:8a0:602:0::d",
+      "kavlan-2": "2001:660:4406:681:2:0::d",
+      "kavlan-20": "2001:660:4406:3a0:602:0::d",
+      "kavlan-21": "2001:660:4406:6a0:602:0::d",
+      "kavlan-3": "2001:660:4406:682:2:0::d",
+      "kavlan-4": "2001:660:4406:690:2:0::d",
+      "kavlan-5": "2001:660:4406:691:2:0::d",
+      "kavlan-6": "2001:660:4406:692:2:0::d",
+      "kavlan-7": "2001:660:4406:693:2:0::d",
+      "kavlan-8": "2001:660:4406:694:2:0::d",
+      "kavlan-9": "2001:660:4406:695:2:0::d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::d",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.13",
-      "ip6": "2001:660:4406:600:2::d",
+      "ip6": "2001:660:4406:600:2:0::d",
       "kavlan": true,
       "mac": "24:6e:96:6a:49:78",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-14.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-14.json
index 6493f47f848..d01235ba824 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-14.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-14.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::e",
-      "kavlan-11": "2001:660:4406:1a0:602::e",
-      "kavlan-12": "2001:660:4406:2a0:602::e",
-      "kavlan-13": "2001:660:4406:4a0:602::e",
-      "kavlan-14": "2001:660:4406:5a0:602::e",
-      "kavlan-16": "2001:660:4406:7a0:602::e",
-      "kavlan-18": "2001:660:4406:8a0:602::e",
-      "kavlan-2": "2001:660:4406:681:2::e",
-      "kavlan-20": "2001:660:4406:3a0:602::e",
-      "kavlan-21": "2001:660:4406:6a0:602::e",
-      "kavlan-3": "2001:660:4406:682:2::e",
-      "kavlan-4": "2001:660:4406:690:2::e",
-      "kavlan-5": "2001:660:4406:691:2::e",
-      "kavlan-6": "2001:660:4406:692:2::e",
-      "kavlan-7": "2001:660:4406:693:2::e",
-      "kavlan-8": "2001:660:4406:694:2::e",
-      "kavlan-9": "2001:660:4406:695:2::e"
+      "kavlan-1": "2001:660:4406:680:2:0::e",
+      "kavlan-11": "2001:660:4406:1a0:602:0::e",
+      "kavlan-12": "2001:660:4406:2a0:602:0::e",
+      "kavlan-13": "2001:660:4406:4a0:602:0::e",
+      "kavlan-14": "2001:660:4406:5a0:602:0::e",
+      "kavlan-16": "2001:660:4406:7a0:602:0::e",
+      "kavlan-18": "2001:660:4406:8a0:602:0::e",
+      "kavlan-2": "2001:660:4406:681:2:0::e",
+      "kavlan-20": "2001:660:4406:3a0:602:0::e",
+      "kavlan-21": "2001:660:4406:6a0:602:0::e",
+      "kavlan-3": "2001:660:4406:682:2:0::e",
+      "kavlan-4": "2001:660:4406:690:2:0::e",
+      "kavlan-5": "2001:660:4406:691:2:0::e",
+      "kavlan-6": "2001:660:4406:692:2:0::e",
+      "kavlan-7": "2001:660:4406:693:2:0::e",
+      "kavlan-8": "2001:660:4406:694:2:0::e",
+      "kavlan-9": "2001:660:4406:695:2:0::e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::e",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.14",
-      "ip6": "2001:660:4406:600:2::e",
+      "ip6": "2001:660:4406:600:2:0::e",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:78",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-15.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-15.json
index 165b18545be..d5bfcfb89ed 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-15.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-15.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::f",
-      "kavlan-11": "2001:660:4406:1a0:602::f",
-      "kavlan-12": "2001:660:4406:2a0:602::f",
-      "kavlan-13": "2001:660:4406:4a0:602::f",
-      "kavlan-14": "2001:660:4406:5a0:602::f",
-      "kavlan-16": "2001:660:4406:7a0:602::f",
-      "kavlan-18": "2001:660:4406:8a0:602::f",
-      "kavlan-2": "2001:660:4406:681:2::f",
-      "kavlan-20": "2001:660:4406:3a0:602::f",
-      "kavlan-21": "2001:660:4406:6a0:602::f",
-      "kavlan-3": "2001:660:4406:682:2::f",
-      "kavlan-4": "2001:660:4406:690:2::f",
-      "kavlan-5": "2001:660:4406:691:2::f",
-      "kavlan-6": "2001:660:4406:692:2::f",
-      "kavlan-7": "2001:660:4406:693:2::f",
-      "kavlan-8": "2001:660:4406:694:2::f",
-      "kavlan-9": "2001:660:4406:695:2::f"
+      "kavlan-1": "2001:660:4406:680:2:0::f",
+      "kavlan-11": "2001:660:4406:1a0:602:0::f",
+      "kavlan-12": "2001:660:4406:2a0:602:0::f",
+      "kavlan-13": "2001:660:4406:4a0:602:0::f",
+      "kavlan-14": "2001:660:4406:5a0:602:0::f",
+      "kavlan-16": "2001:660:4406:7a0:602:0::f",
+      "kavlan-18": "2001:660:4406:8a0:602:0::f",
+      "kavlan-2": "2001:660:4406:681:2:0::f",
+      "kavlan-20": "2001:660:4406:3a0:602:0::f",
+      "kavlan-21": "2001:660:4406:6a0:602:0::f",
+      "kavlan-3": "2001:660:4406:682:2:0::f",
+      "kavlan-4": "2001:660:4406:690:2:0::f",
+      "kavlan-5": "2001:660:4406:691:2:0::f",
+      "kavlan-6": "2001:660:4406:692:2:0::f",
+      "kavlan-7": "2001:660:4406:693:2:0::f",
+      "kavlan-8": "2001:660:4406:694:2:0::f",
+      "kavlan-9": "2001:660:4406:695:2:0::f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::f",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.15",
-      "ip6": "2001:660:4406:600:2::f",
+      "ip6": "2001:660:4406:600:2:0::f",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:50",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-16.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-16.json
index 44bf209a7ff..5d023848ff9 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-16.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-16.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::10",
-      "kavlan-11": "2001:660:4406:1a0:602::10",
-      "kavlan-12": "2001:660:4406:2a0:602::10",
-      "kavlan-13": "2001:660:4406:4a0:602::10",
-      "kavlan-14": "2001:660:4406:5a0:602::10",
-      "kavlan-16": "2001:660:4406:7a0:602::10",
-      "kavlan-18": "2001:660:4406:8a0:602::10",
-      "kavlan-2": "2001:660:4406:681:2::10",
-      "kavlan-20": "2001:660:4406:3a0:602::10",
-      "kavlan-21": "2001:660:4406:6a0:602::10",
-      "kavlan-3": "2001:660:4406:682:2::10",
-      "kavlan-4": "2001:660:4406:690:2::10",
-      "kavlan-5": "2001:660:4406:691:2::10",
-      "kavlan-6": "2001:660:4406:692:2::10",
-      "kavlan-7": "2001:660:4406:693:2::10",
-      "kavlan-8": "2001:660:4406:694:2::10",
-      "kavlan-9": "2001:660:4406:695:2::10"
+      "kavlan-1": "2001:660:4406:680:2:0::10",
+      "kavlan-11": "2001:660:4406:1a0:602:0::10",
+      "kavlan-12": "2001:660:4406:2a0:602:0::10",
+      "kavlan-13": "2001:660:4406:4a0:602:0::10",
+      "kavlan-14": "2001:660:4406:5a0:602:0::10",
+      "kavlan-16": "2001:660:4406:7a0:602:0::10",
+      "kavlan-18": "2001:660:4406:8a0:602:0::10",
+      "kavlan-2": "2001:660:4406:681:2:0::10",
+      "kavlan-20": "2001:660:4406:3a0:602:0::10",
+      "kavlan-21": "2001:660:4406:6a0:602:0::10",
+      "kavlan-3": "2001:660:4406:682:2:0::10",
+      "kavlan-4": "2001:660:4406:690:2:0::10",
+      "kavlan-5": "2001:660:4406:691:2:0::10",
+      "kavlan-6": "2001:660:4406:692:2:0::10",
+      "kavlan-7": "2001:660:4406:693:2:0::10",
+      "kavlan-8": "2001:660:4406:694:2:0::10",
+      "kavlan-9": "2001:660:4406:695:2:0::10"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::10",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.16",
-      "ip6": "2001:660:4406:600:2::10",
+      "ip6": "2001:660:4406:600:2:0::10",
       "kavlan": true,
       "mac": "24:6e:96:6a:46:c0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-17.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-17.json
index f775288611f..51afc3c47e4 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-17.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-17.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::11",
-      "kavlan-11": "2001:660:4406:1a0:602::11",
-      "kavlan-12": "2001:660:4406:2a0:602::11",
-      "kavlan-13": "2001:660:4406:4a0:602::11",
-      "kavlan-14": "2001:660:4406:5a0:602::11",
-      "kavlan-16": "2001:660:4406:7a0:602::11",
-      "kavlan-18": "2001:660:4406:8a0:602::11",
-      "kavlan-2": "2001:660:4406:681:2::11",
-      "kavlan-20": "2001:660:4406:3a0:602::11",
-      "kavlan-21": "2001:660:4406:6a0:602::11",
-      "kavlan-3": "2001:660:4406:682:2::11",
-      "kavlan-4": "2001:660:4406:690:2::11",
-      "kavlan-5": "2001:660:4406:691:2::11",
-      "kavlan-6": "2001:660:4406:692:2::11",
-      "kavlan-7": "2001:660:4406:693:2::11",
-      "kavlan-8": "2001:660:4406:694:2::11",
-      "kavlan-9": "2001:660:4406:695:2::11"
+      "kavlan-1": "2001:660:4406:680:2:0::11",
+      "kavlan-11": "2001:660:4406:1a0:602:0::11",
+      "kavlan-12": "2001:660:4406:2a0:602:0::11",
+      "kavlan-13": "2001:660:4406:4a0:602:0::11",
+      "kavlan-14": "2001:660:4406:5a0:602:0::11",
+      "kavlan-16": "2001:660:4406:7a0:602:0::11",
+      "kavlan-18": "2001:660:4406:8a0:602:0::11",
+      "kavlan-2": "2001:660:4406:681:2:0::11",
+      "kavlan-20": "2001:660:4406:3a0:602:0::11",
+      "kavlan-21": "2001:660:4406:6a0:602:0::11",
+      "kavlan-3": "2001:660:4406:682:2:0::11",
+      "kavlan-4": "2001:660:4406:690:2:0::11",
+      "kavlan-5": "2001:660:4406:691:2:0::11",
+      "kavlan-6": "2001:660:4406:692:2:0::11",
+      "kavlan-7": "2001:660:4406:693:2:0::11",
+      "kavlan-8": "2001:660:4406:694:2:0::11",
+      "kavlan-9": "2001:660:4406:695:2:0::11"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::11",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.17",
-      "ip6": "2001:660:4406:600:2::11",
+      "ip6": "2001:660:4406:600:2:0::11",
       "kavlan": true,
       "mac": "24:6e:96:6a:47:48",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-18.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-18.json
index 028c9024d7e..5ef7b8795b6 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-18.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-18.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::12",
-      "kavlan-11": "2001:660:4406:1a0:602::12",
-      "kavlan-12": "2001:660:4406:2a0:602::12",
-      "kavlan-13": "2001:660:4406:4a0:602::12",
-      "kavlan-14": "2001:660:4406:5a0:602::12",
-      "kavlan-16": "2001:660:4406:7a0:602::12",
-      "kavlan-18": "2001:660:4406:8a0:602::12",
-      "kavlan-2": "2001:660:4406:681:2::12",
-      "kavlan-20": "2001:660:4406:3a0:602::12",
-      "kavlan-21": "2001:660:4406:6a0:602::12",
-      "kavlan-3": "2001:660:4406:682:2::12",
-      "kavlan-4": "2001:660:4406:690:2::12",
-      "kavlan-5": "2001:660:4406:691:2::12",
-      "kavlan-6": "2001:660:4406:692:2::12",
-      "kavlan-7": "2001:660:4406:693:2::12",
-      "kavlan-8": "2001:660:4406:694:2::12",
-      "kavlan-9": "2001:660:4406:695:2::12"
+      "kavlan-1": "2001:660:4406:680:2:0::12",
+      "kavlan-11": "2001:660:4406:1a0:602:0::12",
+      "kavlan-12": "2001:660:4406:2a0:602:0::12",
+      "kavlan-13": "2001:660:4406:4a0:602:0::12",
+      "kavlan-14": "2001:660:4406:5a0:602:0::12",
+      "kavlan-16": "2001:660:4406:7a0:602:0::12",
+      "kavlan-18": "2001:660:4406:8a0:602:0::12",
+      "kavlan-2": "2001:660:4406:681:2:0::12",
+      "kavlan-20": "2001:660:4406:3a0:602:0::12",
+      "kavlan-21": "2001:660:4406:6a0:602:0::12",
+      "kavlan-3": "2001:660:4406:682:2:0::12",
+      "kavlan-4": "2001:660:4406:690:2:0::12",
+      "kavlan-5": "2001:660:4406:691:2:0::12",
+      "kavlan-6": "2001:660:4406:692:2:0::12",
+      "kavlan-7": "2001:660:4406:693:2:0::12",
+      "kavlan-8": "2001:660:4406:694:2:0::12",
+      "kavlan-9": "2001:660:4406:695:2:0::12"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::12",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.18",
-      "ip6": "2001:660:4406:600:2::12",
+      "ip6": "2001:660:4406:600:2:0::12",
       "kavlan": true,
       "mac": "24:6e:96:6a:5a:58",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-19.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-19.json
index 60b4a537cd2..a37358e3df8 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-19.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-19.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::13",
-      "kavlan-11": "2001:660:4406:1a0:602::13",
-      "kavlan-12": "2001:660:4406:2a0:602::13",
-      "kavlan-13": "2001:660:4406:4a0:602::13",
-      "kavlan-14": "2001:660:4406:5a0:602::13",
-      "kavlan-16": "2001:660:4406:7a0:602::13",
-      "kavlan-18": "2001:660:4406:8a0:602::13",
-      "kavlan-2": "2001:660:4406:681:2::13",
-      "kavlan-20": "2001:660:4406:3a0:602::13",
-      "kavlan-21": "2001:660:4406:6a0:602::13",
-      "kavlan-3": "2001:660:4406:682:2::13",
-      "kavlan-4": "2001:660:4406:690:2::13",
-      "kavlan-5": "2001:660:4406:691:2::13",
-      "kavlan-6": "2001:660:4406:692:2::13",
-      "kavlan-7": "2001:660:4406:693:2::13",
-      "kavlan-8": "2001:660:4406:694:2::13",
-      "kavlan-9": "2001:660:4406:695:2::13"
+      "kavlan-1": "2001:660:4406:680:2:0::13",
+      "kavlan-11": "2001:660:4406:1a0:602:0::13",
+      "kavlan-12": "2001:660:4406:2a0:602:0::13",
+      "kavlan-13": "2001:660:4406:4a0:602:0::13",
+      "kavlan-14": "2001:660:4406:5a0:602:0::13",
+      "kavlan-16": "2001:660:4406:7a0:602:0::13",
+      "kavlan-18": "2001:660:4406:8a0:602:0::13",
+      "kavlan-2": "2001:660:4406:681:2:0::13",
+      "kavlan-20": "2001:660:4406:3a0:602:0::13",
+      "kavlan-21": "2001:660:4406:6a0:602:0::13",
+      "kavlan-3": "2001:660:4406:682:2:0::13",
+      "kavlan-4": "2001:660:4406:690:2:0::13",
+      "kavlan-5": "2001:660:4406:691:2:0::13",
+      "kavlan-6": "2001:660:4406:692:2:0::13",
+      "kavlan-7": "2001:660:4406:693:2:0::13",
+      "kavlan-8": "2001:660:4406:694:2:0::13",
+      "kavlan-9": "2001:660:4406:695:2:0::13"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::13",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.19",
-      "ip6": "2001:660:4406:600:2::13",
+      "ip6": "2001:660:4406:600:2:0::13",
       "kavlan": true,
       "mac": "24:6e:96:6a:59:60",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-2.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-2.json
index be5b760c453..d2bf66bfcc5 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-2.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-2.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::2",
-      "kavlan-11": "2001:660:4406:1a0:602::2",
-      "kavlan-12": "2001:660:4406:2a0:602::2",
-      "kavlan-13": "2001:660:4406:4a0:602::2",
-      "kavlan-14": "2001:660:4406:5a0:602::2",
-      "kavlan-16": "2001:660:4406:7a0:602::2",
-      "kavlan-18": "2001:660:4406:8a0:602::2",
-      "kavlan-2": "2001:660:4406:681:2::2",
-      "kavlan-20": "2001:660:4406:3a0:602::2",
-      "kavlan-21": "2001:660:4406:6a0:602::2",
-      "kavlan-3": "2001:660:4406:682:2::2",
-      "kavlan-4": "2001:660:4406:690:2::2",
-      "kavlan-5": "2001:660:4406:691:2::2",
-      "kavlan-6": "2001:660:4406:692:2::2",
-      "kavlan-7": "2001:660:4406:693:2::2",
-      "kavlan-8": "2001:660:4406:694:2::2",
-      "kavlan-9": "2001:660:4406:695:2::2"
+      "kavlan-1": "2001:660:4406:680:2:0::2",
+      "kavlan-11": "2001:660:4406:1a0:602:0::2",
+      "kavlan-12": "2001:660:4406:2a0:602:0::2",
+      "kavlan-13": "2001:660:4406:4a0:602:0::2",
+      "kavlan-14": "2001:660:4406:5a0:602:0::2",
+      "kavlan-16": "2001:660:4406:7a0:602:0::2",
+      "kavlan-18": "2001:660:4406:8a0:602:0::2",
+      "kavlan-2": "2001:660:4406:681:2:0::2",
+      "kavlan-20": "2001:660:4406:3a0:602:0::2",
+      "kavlan-21": "2001:660:4406:6a0:602:0::2",
+      "kavlan-3": "2001:660:4406:682:2:0::2",
+      "kavlan-4": "2001:660:4406:690:2:0::2",
+      "kavlan-5": "2001:660:4406:691:2:0::2",
+      "kavlan-6": "2001:660:4406:692:2:0::2",
+      "kavlan-7": "2001:660:4406:693:2:0::2",
+      "kavlan-8": "2001:660:4406:694:2:0::2",
+      "kavlan-9": "2001:660:4406:695:2:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::2",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.2",
-      "ip6": "2001:660:4406:600:2::2",
+      "ip6": "2001:660:4406:600:2:0::2",
       "kavlan": true,
       "mac": "24:6e:96:6a:d0:48",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-20.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-20.json
index dbe83c65fef..593fb1502be 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-20.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-20.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::14",
-      "kavlan-11": "2001:660:4406:1a0:602::14",
-      "kavlan-12": "2001:660:4406:2a0:602::14",
-      "kavlan-13": "2001:660:4406:4a0:602::14",
-      "kavlan-14": "2001:660:4406:5a0:602::14",
-      "kavlan-16": "2001:660:4406:7a0:602::14",
-      "kavlan-18": "2001:660:4406:8a0:602::14",
-      "kavlan-2": "2001:660:4406:681:2::14",
-      "kavlan-20": "2001:660:4406:3a0:602::14",
-      "kavlan-21": "2001:660:4406:6a0:602::14",
-      "kavlan-3": "2001:660:4406:682:2::14",
-      "kavlan-4": "2001:660:4406:690:2::14",
-      "kavlan-5": "2001:660:4406:691:2::14",
-      "kavlan-6": "2001:660:4406:692:2::14",
-      "kavlan-7": "2001:660:4406:693:2::14",
-      "kavlan-8": "2001:660:4406:694:2::14",
-      "kavlan-9": "2001:660:4406:695:2::14"
+      "kavlan-1": "2001:660:4406:680:2:0::14",
+      "kavlan-11": "2001:660:4406:1a0:602:0::14",
+      "kavlan-12": "2001:660:4406:2a0:602:0::14",
+      "kavlan-13": "2001:660:4406:4a0:602:0::14",
+      "kavlan-14": "2001:660:4406:5a0:602:0::14",
+      "kavlan-16": "2001:660:4406:7a0:602:0::14",
+      "kavlan-18": "2001:660:4406:8a0:602:0::14",
+      "kavlan-2": "2001:660:4406:681:2:0::14",
+      "kavlan-20": "2001:660:4406:3a0:602:0::14",
+      "kavlan-21": "2001:660:4406:6a0:602:0::14",
+      "kavlan-3": "2001:660:4406:682:2:0::14",
+      "kavlan-4": "2001:660:4406:690:2:0::14",
+      "kavlan-5": "2001:660:4406:691:2:0::14",
+      "kavlan-6": "2001:660:4406:692:2:0::14",
+      "kavlan-7": "2001:660:4406:693:2:0::14",
+      "kavlan-8": "2001:660:4406:694:2:0::14",
+      "kavlan-9": "2001:660:4406:695:2:0::14"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::14",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.20",
-      "ip6": "2001:660:4406:600:2::14",
+      "ip6": "2001:660:4406:600:2:0::14",
       "kavlan": true,
       "mac": "24:6e:96:6a:50:10",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-21.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-21.json
index 4e5c26f899e..e69ac59648d 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-21.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-21.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::15",
-      "kavlan-11": "2001:660:4406:1a0:602::15",
-      "kavlan-12": "2001:660:4406:2a0:602::15",
-      "kavlan-13": "2001:660:4406:4a0:602::15",
-      "kavlan-14": "2001:660:4406:5a0:602::15",
-      "kavlan-16": "2001:660:4406:7a0:602::15",
-      "kavlan-18": "2001:660:4406:8a0:602::15",
-      "kavlan-2": "2001:660:4406:681:2::15",
-      "kavlan-20": "2001:660:4406:3a0:602::15",
-      "kavlan-21": "2001:660:4406:6a0:602::15",
-      "kavlan-3": "2001:660:4406:682:2::15",
-      "kavlan-4": "2001:660:4406:690:2::15",
-      "kavlan-5": "2001:660:4406:691:2::15",
-      "kavlan-6": "2001:660:4406:692:2::15",
-      "kavlan-7": "2001:660:4406:693:2::15",
-      "kavlan-8": "2001:660:4406:694:2::15",
-      "kavlan-9": "2001:660:4406:695:2::15"
+      "kavlan-1": "2001:660:4406:680:2:0::15",
+      "kavlan-11": "2001:660:4406:1a0:602:0::15",
+      "kavlan-12": "2001:660:4406:2a0:602:0::15",
+      "kavlan-13": "2001:660:4406:4a0:602:0::15",
+      "kavlan-14": "2001:660:4406:5a0:602:0::15",
+      "kavlan-16": "2001:660:4406:7a0:602:0::15",
+      "kavlan-18": "2001:660:4406:8a0:602:0::15",
+      "kavlan-2": "2001:660:4406:681:2:0::15",
+      "kavlan-20": "2001:660:4406:3a0:602:0::15",
+      "kavlan-21": "2001:660:4406:6a0:602:0::15",
+      "kavlan-3": "2001:660:4406:682:2:0::15",
+      "kavlan-4": "2001:660:4406:690:2:0::15",
+      "kavlan-5": "2001:660:4406:691:2:0::15",
+      "kavlan-6": "2001:660:4406:692:2:0::15",
+      "kavlan-7": "2001:660:4406:693:2:0::15",
+      "kavlan-8": "2001:660:4406:694:2:0::15",
+      "kavlan-9": "2001:660:4406:695:2:0::15"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::15",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.21",
-      "ip6": "2001:660:4406:600:2::15",
+      "ip6": "2001:660:4406:600:2:0::15",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:e0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-22.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-22.json
index 097867dd509..81d4215d995 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-22.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-22.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::16",
-      "kavlan-11": "2001:660:4406:1a0:602::16",
-      "kavlan-12": "2001:660:4406:2a0:602::16",
-      "kavlan-13": "2001:660:4406:4a0:602::16",
-      "kavlan-14": "2001:660:4406:5a0:602::16",
-      "kavlan-16": "2001:660:4406:7a0:602::16",
-      "kavlan-18": "2001:660:4406:8a0:602::16",
-      "kavlan-2": "2001:660:4406:681:2::16",
-      "kavlan-20": "2001:660:4406:3a0:602::16",
-      "kavlan-21": "2001:660:4406:6a0:602::16",
-      "kavlan-3": "2001:660:4406:682:2::16",
-      "kavlan-4": "2001:660:4406:690:2::16",
-      "kavlan-5": "2001:660:4406:691:2::16",
-      "kavlan-6": "2001:660:4406:692:2::16",
-      "kavlan-7": "2001:660:4406:693:2::16",
-      "kavlan-8": "2001:660:4406:694:2::16",
-      "kavlan-9": "2001:660:4406:695:2::16"
+      "kavlan-1": "2001:660:4406:680:2:0::16",
+      "kavlan-11": "2001:660:4406:1a0:602:0::16",
+      "kavlan-12": "2001:660:4406:2a0:602:0::16",
+      "kavlan-13": "2001:660:4406:4a0:602:0::16",
+      "kavlan-14": "2001:660:4406:5a0:602:0::16",
+      "kavlan-16": "2001:660:4406:7a0:602:0::16",
+      "kavlan-18": "2001:660:4406:8a0:602:0::16",
+      "kavlan-2": "2001:660:4406:681:2:0::16",
+      "kavlan-20": "2001:660:4406:3a0:602:0::16",
+      "kavlan-21": "2001:660:4406:6a0:602:0::16",
+      "kavlan-3": "2001:660:4406:682:2:0::16",
+      "kavlan-4": "2001:660:4406:690:2:0::16",
+      "kavlan-5": "2001:660:4406:691:2:0::16",
+      "kavlan-6": "2001:660:4406:692:2:0::16",
+      "kavlan-7": "2001:660:4406:693:2:0::16",
+      "kavlan-8": "2001:660:4406:694:2:0::16",
+      "kavlan-9": "2001:660:4406:695:2:0::16"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::16",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.22",
-      "ip6": "2001:660:4406:600:2::16",
+      "ip6": "2001:660:4406:600:2:0::16",
       "kavlan": true,
       "mac": "24:6e:96:6a:d3:20",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-23.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-23.json
index a9d242798a4..f5928caa6e4 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-23.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-23.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::17",
-      "kavlan-11": "2001:660:4406:1a0:602::17",
-      "kavlan-12": "2001:660:4406:2a0:602::17",
-      "kavlan-13": "2001:660:4406:4a0:602::17",
-      "kavlan-14": "2001:660:4406:5a0:602::17",
-      "kavlan-16": "2001:660:4406:7a0:602::17",
-      "kavlan-18": "2001:660:4406:8a0:602::17",
-      "kavlan-2": "2001:660:4406:681:2::17",
-      "kavlan-20": "2001:660:4406:3a0:602::17",
-      "kavlan-21": "2001:660:4406:6a0:602::17",
-      "kavlan-3": "2001:660:4406:682:2::17",
-      "kavlan-4": "2001:660:4406:690:2::17",
-      "kavlan-5": "2001:660:4406:691:2::17",
-      "kavlan-6": "2001:660:4406:692:2::17",
-      "kavlan-7": "2001:660:4406:693:2::17",
-      "kavlan-8": "2001:660:4406:694:2::17",
-      "kavlan-9": "2001:660:4406:695:2::17"
+      "kavlan-1": "2001:660:4406:680:2:0::17",
+      "kavlan-11": "2001:660:4406:1a0:602:0::17",
+      "kavlan-12": "2001:660:4406:2a0:602:0::17",
+      "kavlan-13": "2001:660:4406:4a0:602:0::17",
+      "kavlan-14": "2001:660:4406:5a0:602:0::17",
+      "kavlan-16": "2001:660:4406:7a0:602:0::17",
+      "kavlan-18": "2001:660:4406:8a0:602:0::17",
+      "kavlan-2": "2001:660:4406:681:2:0::17",
+      "kavlan-20": "2001:660:4406:3a0:602:0::17",
+      "kavlan-21": "2001:660:4406:6a0:602:0::17",
+      "kavlan-3": "2001:660:4406:682:2:0::17",
+      "kavlan-4": "2001:660:4406:690:2:0::17",
+      "kavlan-5": "2001:660:4406:691:2:0::17",
+      "kavlan-6": "2001:660:4406:692:2:0::17",
+      "kavlan-7": "2001:660:4406:693:2:0::17",
+      "kavlan-8": "2001:660:4406:694:2:0::17",
+      "kavlan-9": "2001:660:4406:695:2:0::17"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::17",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.23",
-      "ip6": "2001:660:4406:600:2::17",
+      "ip6": "2001:660:4406:600:2:0::17",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:b8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-24.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-24.json
index 8e6394be05b..d58e4f0822d 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-24.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-24.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::18",
-      "kavlan-11": "2001:660:4406:1a0:602::18",
-      "kavlan-12": "2001:660:4406:2a0:602::18",
-      "kavlan-13": "2001:660:4406:4a0:602::18",
-      "kavlan-14": "2001:660:4406:5a0:602::18",
-      "kavlan-16": "2001:660:4406:7a0:602::18",
-      "kavlan-18": "2001:660:4406:8a0:602::18",
-      "kavlan-2": "2001:660:4406:681:2::18",
-      "kavlan-20": "2001:660:4406:3a0:602::18",
-      "kavlan-21": "2001:660:4406:6a0:602::18",
-      "kavlan-3": "2001:660:4406:682:2::18",
-      "kavlan-4": "2001:660:4406:690:2::18",
-      "kavlan-5": "2001:660:4406:691:2::18",
-      "kavlan-6": "2001:660:4406:692:2::18",
-      "kavlan-7": "2001:660:4406:693:2::18",
-      "kavlan-8": "2001:660:4406:694:2::18",
-      "kavlan-9": "2001:660:4406:695:2::18"
+      "kavlan-1": "2001:660:4406:680:2:0::18",
+      "kavlan-11": "2001:660:4406:1a0:602:0::18",
+      "kavlan-12": "2001:660:4406:2a0:602:0::18",
+      "kavlan-13": "2001:660:4406:4a0:602:0::18",
+      "kavlan-14": "2001:660:4406:5a0:602:0::18",
+      "kavlan-16": "2001:660:4406:7a0:602:0::18",
+      "kavlan-18": "2001:660:4406:8a0:602:0::18",
+      "kavlan-2": "2001:660:4406:681:2:0::18",
+      "kavlan-20": "2001:660:4406:3a0:602:0::18",
+      "kavlan-21": "2001:660:4406:6a0:602:0::18",
+      "kavlan-3": "2001:660:4406:682:2:0::18",
+      "kavlan-4": "2001:660:4406:690:2:0::18",
+      "kavlan-5": "2001:660:4406:691:2:0::18",
+      "kavlan-6": "2001:660:4406:692:2:0::18",
+      "kavlan-7": "2001:660:4406:693:2:0::18",
+      "kavlan-8": "2001:660:4406:694:2:0::18",
+      "kavlan-9": "2001:660:4406:695:2:0::18"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::18",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.24",
-      "ip6": "2001:660:4406:600:2::18",
+      "ip6": "2001:660:4406:600:2:0::18",
       "kavlan": true,
       "mac": "24:6e:96:6a:cf:e8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-25.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-25.json
index 14868ee79f2..0ae0e5ac7c6 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-25.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-25.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::19",
-      "kavlan-11": "2001:660:4406:1a0:602::19",
-      "kavlan-12": "2001:660:4406:2a0:602::19",
-      "kavlan-13": "2001:660:4406:4a0:602::19",
-      "kavlan-14": "2001:660:4406:5a0:602::19",
-      "kavlan-16": "2001:660:4406:7a0:602::19",
-      "kavlan-18": "2001:660:4406:8a0:602::19",
-      "kavlan-2": "2001:660:4406:681:2::19",
-      "kavlan-20": "2001:660:4406:3a0:602::19",
-      "kavlan-21": "2001:660:4406:6a0:602::19",
-      "kavlan-3": "2001:660:4406:682:2::19",
-      "kavlan-4": "2001:660:4406:690:2::19",
-      "kavlan-5": "2001:660:4406:691:2::19",
-      "kavlan-6": "2001:660:4406:692:2::19",
-      "kavlan-7": "2001:660:4406:693:2::19",
-      "kavlan-8": "2001:660:4406:694:2::19",
-      "kavlan-9": "2001:660:4406:695:2::19"
+      "kavlan-1": "2001:660:4406:680:2:0::19",
+      "kavlan-11": "2001:660:4406:1a0:602:0::19",
+      "kavlan-12": "2001:660:4406:2a0:602:0::19",
+      "kavlan-13": "2001:660:4406:4a0:602:0::19",
+      "kavlan-14": "2001:660:4406:5a0:602:0::19",
+      "kavlan-16": "2001:660:4406:7a0:602:0::19",
+      "kavlan-18": "2001:660:4406:8a0:602:0::19",
+      "kavlan-2": "2001:660:4406:681:2:0::19",
+      "kavlan-20": "2001:660:4406:3a0:602:0::19",
+      "kavlan-21": "2001:660:4406:6a0:602:0::19",
+      "kavlan-3": "2001:660:4406:682:2:0::19",
+      "kavlan-4": "2001:660:4406:690:2:0::19",
+      "kavlan-5": "2001:660:4406:691:2:0::19",
+      "kavlan-6": "2001:660:4406:692:2:0::19",
+      "kavlan-7": "2001:660:4406:693:2:0::19",
+      "kavlan-8": "2001:660:4406:694:2:0::19",
+      "kavlan-9": "2001:660:4406:695:2:0::19"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::19",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.25",
-      "ip6": "2001:660:4406:600:2::19",
+      "ip6": "2001:660:4406:600:2:0::19",
       "kavlan": true,
       "mac": "24:6e:96:6a:48:b8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-26.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-26.json
index 65f9fa0f700..1285f7bca66 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-26.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-26.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::1a",
-      "kavlan-11": "2001:660:4406:1a0:602::1a",
-      "kavlan-12": "2001:660:4406:2a0:602::1a",
-      "kavlan-13": "2001:660:4406:4a0:602::1a",
-      "kavlan-14": "2001:660:4406:5a0:602::1a",
-      "kavlan-16": "2001:660:4406:7a0:602::1a",
-      "kavlan-18": "2001:660:4406:8a0:602::1a",
-      "kavlan-2": "2001:660:4406:681:2::1a",
-      "kavlan-20": "2001:660:4406:3a0:602::1a",
-      "kavlan-21": "2001:660:4406:6a0:602::1a",
-      "kavlan-3": "2001:660:4406:682:2::1a",
-      "kavlan-4": "2001:660:4406:690:2::1a",
-      "kavlan-5": "2001:660:4406:691:2::1a",
-      "kavlan-6": "2001:660:4406:692:2::1a",
-      "kavlan-7": "2001:660:4406:693:2::1a",
-      "kavlan-8": "2001:660:4406:694:2::1a",
-      "kavlan-9": "2001:660:4406:695:2::1a"
+      "kavlan-1": "2001:660:4406:680:2:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:602:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:602:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:602:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:602:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:602:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:602:0::1a",
+      "kavlan-2": "2001:660:4406:681:2:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:602:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:602:0::1a",
+      "kavlan-3": "2001:660:4406:682:2:0::1a",
+      "kavlan-4": "2001:660:4406:690:2:0::1a",
+      "kavlan-5": "2001:660:4406:691:2:0::1a",
+      "kavlan-6": "2001:660:4406:692:2:0::1a",
+      "kavlan-7": "2001:660:4406:693:2:0::1a",
+      "kavlan-8": "2001:660:4406:694:2:0::1a",
+      "kavlan-9": "2001:660:4406:695:2:0::1a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::1a",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.26",
-      "ip6": "2001:660:4406:600:2::1a",
+      "ip6": "2001:660:4406:600:2:0::1a",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:e8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-27.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-27.json
index db3c022d8f2..1225e25d307 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-27.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-27.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::1b",
-      "kavlan-11": "2001:660:4406:1a0:602::1b",
-      "kavlan-12": "2001:660:4406:2a0:602::1b",
-      "kavlan-13": "2001:660:4406:4a0:602::1b",
-      "kavlan-14": "2001:660:4406:5a0:602::1b",
-      "kavlan-16": "2001:660:4406:7a0:602::1b",
-      "kavlan-18": "2001:660:4406:8a0:602::1b",
-      "kavlan-2": "2001:660:4406:681:2::1b",
-      "kavlan-20": "2001:660:4406:3a0:602::1b",
-      "kavlan-21": "2001:660:4406:6a0:602::1b",
-      "kavlan-3": "2001:660:4406:682:2::1b",
-      "kavlan-4": "2001:660:4406:690:2::1b",
-      "kavlan-5": "2001:660:4406:691:2::1b",
-      "kavlan-6": "2001:660:4406:692:2::1b",
-      "kavlan-7": "2001:660:4406:693:2::1b",
-      "kavlan-8": "2001:660:4406:694:2::1b",
-      "kavlan-9": "2001:660:4406:695:2::1b"
+      "kavlan-1": "2001:660:4406:680:2:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:602:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:602:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:602:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:602:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:602:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:602:0::1b",
+      "kavlan-2": "2001:660:4406:681:2:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:602:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:602:0::1b",
+      "kavlan-3": "2001:660:4406:682:2:0::1b",
+      "kavlan-4": "2001:660:4406:690:2:0::1b",
+      "kavlan-5": "2001:660:4406:691:2:0::1b",
+      "kavlan-6": "2001:660:4406:692:2:0::1b",
+      "kavlan-7": "2001:660:4406:693:2:0::1b",
+      "kavlan-8": "2001:660:4406:694:2:0::1b",
+      "kavlan-9": "2001:660:4406:695:2:0::1b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::1b",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.27",
-      "ip6": "2001:660:4406:600:2::1b",
+      "ip6": "2001:660:4406:600:2:0::1b",
       "kavlan": true,
       "mac": "24:6e:96:6a:d9:f8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-28.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-28.json
index 2a1838520af..4bb2897ff52 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-28.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-28.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::1c",
-      "kavlan-11": "2001:660:4406:1a0:602::1c",
-      "kavlan-12": "2001:660:4406:2a0:602::1c",
-      "kavlan-13": "2001:660:4406:4a0:602::1c",
-      "kavlan-14": "2001:660:4406:5a0:602::1c",
-      "kavlan-16": "2001:660:4406:7a0:602::1c",
-      "kavlan-18": "2001:660:4406:8a0:602::1c",
-      "kavlan-2": "2001:660:4406:681:2::1c",
-      "kavlan-20": "2001:660:4406:3a0:602::1c",
-      "kavlan-21": "2001:660:4406:6a0:602::1c",
-      "kavlan-3": "2001:660:4406:682:2::1c",
-      "kavlan-4": "2001:660:4406:690:2::1c",
-      "kavlan-5": "2001:660:4406:691:2::1c",
-      "kavlan-6": "2001:660:4406:692:2::1c",
-      "kavlan-7": "2001:660:4406:693:2::1c",
-      "kavlan-8": "2001:660:4406:694:2::1c",
-      "kavlan-9": "2001:660:4406:695:2::1c"
+      "kavlan-1": "2001:660:4406:680:2:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:602:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:602:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:602:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:602:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:602:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:602:0::1c",
+      "kavlan-2": "2001:660:4406:681:2:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:602:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:602:0::1c",
+      "kavlan-3": "2001:660:4406:682:2:0::1c",
+      "kavlan-4": "2001:660:4406:690:2:0::1c",
+      "kavlan-5": "2001:660:4406:691:2:0::1c",
+      "kavlan-6": "2001:660:4406:692:2:0::1c",
+      "kavlan-7": "2001:660:4406:693:2:0::1c",
+      "kavlan-8": "2001:660:4406:694:2:0::1c",
+      "kavlan-9": "2001:660:4406:695:2:0::1c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::1c",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.28",
-      "ip6": "2001:660:4406:600:2::1c",
+      "ip6": "2001:660:4406:600:2:0::1c",
       "kavlan": true,
       "mac": "24:6e:96:6a:ca:d0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-29.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-29.json
index 105aa52c133..35af5084b61 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-29.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-29.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::1d",
-      "kavlan-11": "2001:660:4406:1a0:602::1d",
-      "kavlan-12": "2001:660:4406:2a0:602::1d",
-      "kavlan-13": "2001:660:4406:4a0:602::1d",
-      "kavlan-14": "2001:660:4406:5a0:602::1d",
-      "kavlan-16": "2001:660:4406:7a0:602::1d",
-      "kavlan-18": "2001:660:4406:8a0:602::1d",
-      "kavlan-2": "2001:660:4406:681:2::1d",
-      "kavlan-20": "2001:660:4406:3a0:602::1d",
-      "kavlan-21": "2001:660:4406:6a0:602::1d",
-      "kavlan-3": "2001:660:4406:682:2::1d",
-      "kavlan-4": "2001:660:4406:690:2::1d",
-      "kavlan-5": "2001:660:4406:691:2::1d",
-      "kavlan-6": "2001:660:4406:692:2::1d",
-      "kavlan-7": "2001:660:4406:693:2::1d",
-      "kavlan-8": "2001:660:4406:694:2::1d",
-      "kavlan-9": "2001:660:4406:695:2::1d"
+      "kavlan-1": "2001:660:4406:680:2:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:602:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:602:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:602:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:602:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:602:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:602:0::1d",
+      "kavlan-2": "2001:660:4406:681:2:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:602:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:602:0::1d",
+      "kavlan-3": "2001:660:4406:682:2:0::1d",
+      "kavlan-4": "2001:660:4406:690:2:0::1d",
+      "kavlan-5": "2001:660:4406:691:2:0::1d",
+      "kavlan-6": "2001:660:4406:692:2:0::1d",
+      "kavlan-7": "2001:660:4406:693:2:0::1d",
+      "kavlan-8": "2001:660:4406:694:2:0::1d",
+      "kavlan-9": "2001:660:4406:695:2:0::1d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::1d",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.29",
-      "ip6": "2001:660:4406:600:2::1d",
+      "ip6": "2001:660:4406:600:2:0::1d",
       "kavlan": true,
       "mac": "24:6e:96:6a:d8:20",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-3.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-3.json
index 02e01397cb6..1629e063d9f 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-3.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-3.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::3",
-      "kavlan-11": "2001:660:4406:1a0:602::3",
-      "kavlan-12": "2001:660:4406:2a0:602::3",
-      "kavlan-13": "2001:660:4406:4a0:602::3",
-      "kavlan-14": "2001:660:4406:5a0:602::3",
-      "kavlan-16": "2001:660:4406:7a0:602::3",
-      "kavlan-18": "2001:660:4406:8a0:602::3",
-      "kavlan-2": "2001:660:4406:681:2::3",
-      "kavlan-20": "2001:660:4406:3a0:602::3",
-      "kavlan-21": "2001:660:4406:6a0:602::3",
-      "kavlan-3": "2001:660:4406:682:2::3",
-      "kavlan-4": "2001:660:4406:690:2::3",
-      "kavlan-5": "2001:660:4406:691:2::3",
-      "kavlan-6": "2001:660:4406:692:2::3",
-      "kavlan-7": "2001:660:4406:693:2::3",
-      "kavlan-8": "2001:660:4406:694:2::3",
-      "kavlan-9": "2001:660:4406:695:2::3"
+      "kavlan-1": "2001:660:4406:680:2:0::3",
+      "kavlan-11": "2001:660:4406:1a0:602:0::3",
+      "kavlan-12": "2001:660:4406:2a0:602:0::3",
+      "kavlan-13": "2001:660:4406:4a0:602:0::3",
+      "kavlan-14": "2001:660:4406:5a0:602:0::3",
+      "kavlan-16": "2001:660:4406:7a0:602:0::3",
+      "kavlan-18": "2001:660:4406:8a0:602:0::3",
+      "kavlan-2": "2001:660:4406:681:2:0::3",
+      "kavlan-20": "2001:660:4406:3a0:602:0::3",
+      "kavlan-21": "2001:660:4406:6a0:602:0::3",
+      "kavlan-3": "2001:660:4406:682:2:0::3",
+      "kavlan-4": "2001:660:4406:690:2:0::3",
+      "kavlan-5": "2001:660:4406:691:2:0::3",
+      "kavlan-6": "2001:660:4406:692:2:0::3",
+      "kavlan-7": "2001:660:4406:693:2:0::3",
+      "kavlan-8": "2001:660:4406:694:2:0::3",
+      "kavlan-9": "2001:660:4406:695:2:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::3",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.3",
-      "ip6": "2001:660:4406:600:2::3",
+      "ip6": "2001:660:4406:600:2:0::3",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:18",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-30.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-30.json
index 17e9c07b4f1..c54f2f7bcc5 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-30.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-30.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::1e",
-      "kavlan-11": "2001:660:4406:1a0:602::1e",
-      "kavlan-12": "2001:660:4406:2a0:602::1e",
-      "kavlan-13": "2001:660:4406:4a0:602::1e",
-      "kavlan-14": "2001:660:4406:5a0:602::1e",
-      "kavlan-16": "2001:660:4406:7a0:602::1e",
-      "kavlan-18": "2001:660:4406:8a0:602::1e",
-      "kavlan-2": "2001:660:4406:681:2::1e",
-      "kavlan-20": "2001:660:4406:3a0:602::1e",
-      "kavlan-21": "2001:660:4406:6a0:602::1e",
-      "kavlan-3": "2001:660:4406:682:2::1e",
-      "kavlan-4": "2001:660:4406:690:2::1e",
-      "kavlan-5": "2001:660:4406:691:2::1e",
-      "kavlan-6": "2001:660:4406:692:2::1e",
-      "kavlan-7": "2001:660:4406:693:2::1e",
-      "kavlan-8": "2001:660:4406:694:2::1e",
-      "kavlan-9": "2001:660:4406:695:2::1e"
+      "kavlan-1": "2001:660:4406:680:2:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:602:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:602:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:602:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:602:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:602:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:602:0::1e",
+      "kavlan-2": "2001:660:4406:681:2:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:602:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:602:0::1e",
+      "kavlan-3": "2001:660:4406:682:2:0::1e",
+      "kavlan-4": "2001:660:4406:690:2:0::1e",
+      "kavlan-5": "2001:660:4406:691:2:0::1e",
+      "kavlan-6": "2001:660:4406:692:2:0::1e",
+      "kavlan-7": "2001:660:4406:693:2:0::1e",
+      "kavlan-8": "2001:660:4406:694:2:0::1e",
+      "kavlan-9": "2001:660:4406:695:2:0::1e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::1e",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.30",
-      "ip6": "2001:660:4406:600:2::1e",
+      "ip6": "2001:660:4406:600:2:0::1e",
       "kavlan": true,
       "mac": "24:6e:96:6a:51:88",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-31.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-31.json
index 5bb3855c4e7..79efab440b7 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-31.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-31.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::1f",
-      "kavlan-11": "2001:660:4406:1a0:602::1f",
-      "kavlan-12": "2001:660:4406:2a0:602::1f",
-      "kavlan-13": "2001:660:4406:4a0:602::1f",
-      "kavlan-14": "2001:660:4406:5a0:602::1f",
-      "kavlan-16": "2001:660:4406:7a0:602::1f",
-      "kavlan-18": "2001:660:4406:8a0:602::1f",
-      "kavlan-2": "2001:660:4406:681:2::1f",
-      "kavlan-20": "2001:660:4406:3a0:602::1f",
-      "kavlan-21": "2001:660:4406:6a0:602::1f",
-      "kavlan-3": "2001:660:4406:682:2::1f",
-      "kavlan-4": "2001:660:4406:690:2::1f",
-      "kavlan-5": "2001:660:4406:691:2::1f",
-      "kavlan-6": "2001:660:4406:692:2::1f",
-      "kavlan-7": "2001:660:4406:693:2::1f",
-      "kavlan-8": "2001:660:4406:694:2::1f",
-      "kavlan-9": "2001:660:4406:695:2::1f"
+      "kavlan-1": "2001:660:4406:680:2:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:602:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:602:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:602:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:602:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:602:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:602:0::1f",
+      "kavlan-2": "2001:660:4406:681:2:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:602:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:602:0::1f",
+      "kavlan-3": "2001:660:4406:682:2:0::1f",
+      "kavlan-4": "2001:660:4406:690:2:0::1f",
+      "kavlan-5": "2001:660:4406:691:2:0::1f",
+      "kavlan-6": "2001:660:4406:692:2:0::1f",
+      "kavlan-7": "2001:660:4406:693:2:0::1f",
+      "kavlan-8": "2001:660:4406:694:2:0::1f",
+      "kavlan-9": "2001:660:4406:695:2:0::1f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::1f",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.31",
-      "ip6": "2001:660:4406:600:2::1f",
+      "ip6": "2001:660:4406:600:2:0::1f",
       "kavlan": true,
       "mac": "24:6e:96:6a:d8:28",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-32.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-32.json
index c338bbdc066..bb0866b54a0 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-32.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-32.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::20",
-      "kavlan-11": "2001:660:4406:1a0:602::20",
-      "kavlan-12": "2001:660:4406:2a0:602::20",
-      "kavlan-13": "2001:660:4406:4a0:602::20",
-      "kavlan-14": "2001:660:4406:5a0:602::20",
-      "kavlan-16": "2001:660:4406:7a0:602::20",
-      "kavlan-18": "2001:660:4406:8a0:602::20",
-      "kavlan-2": "2001:660:4406:681:2::20",
-      "kavlan-20": "2001:660:4406:3a0:602::20",
-      "kavlan-21": "2001:660:4406:6a0:602::20",
-      "kavlan-3": "2001:660:4406:682:2::20",
-      "kavlan-4": "2001:660:4406:690:2::20",
-      "kavlan-5": "2001:660:4406:691:2::20",
-      "kavlan-6": "2001:660:4406:692:2::20",
-      "kavlan-7": "2001:660:4406:693:2::20",
-      "kavlan-8": "2001:660:4406:694:2::20",
-      "kavlan-9": "2001:660:4406:695:2::20"
+      "kavlan-1": "2001:660:4406:680:2:0::20",
+      "kavlan-11": "2001:660:4406:1a0:602:0::20",
+      "kavlan-12": "2001:660:4406:2a0:602:0::20",
+      "kavlan-13": "2001:660:4406:4a0:602:0::20",
+      "kavlan-14": "2001:660:4406:5a0:602:0::20",
+      "kavlan-16": "2001:660:4406:7a0:602:0::20",
+      "kavlan-18": "2001:660:4406:8a0:602:0::20",
+      "kavlan-2": "2001:660:4406:681:2:0::20",
+      "kavlan-20": "2001:660:4406:3a0:602:0::20",
+      "kavlan-21": "2001:660:4406:6a0:602:0::20",
+      "kavlan-3": "2001:660:4406:682:2:0::20",
+      "kavlan-4": "2001:660:4406:690:2:0::20",
+      "kavlan-5": "2001:660:4406:691:2:0::20",
+      "kavlan-6": "2001:660:4406:692:2:0::20",
+      "kavlan-7": "2001:660:4406:693:2:0::20",
+      "kavlan-8": "2001:660:4406:694:2:0::20",
+      "kavlan-9": "2001:660:4406:695:2:0::20"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::20",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.32",
-      "ip6": "2001:660:4406:600:2::20",
+      "ip6": "2001:660:4406:600:2:0::20",
       "kavlan": true,
       "mac": "24:6e:96:6a:d6:08",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-33.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-33.json
index f804bf0fbd3..f55bd1ce83c 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-33.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-33.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::21",
-      "kavlan-11": "2001:660:4406:1a0:602::21",
-      "kavlan-12": "2001:660:4406:2a0:602::21",
-      "kavlan-13": "2001:660:4406:4a0:602::21",
-      "kavlan-14": "2001:660:4406:5a0:602::21",
-      "kavlan-16": "2001:660:4406:7a0:602::21",
-      "kavlan-18": "2001:660:4406:8a0:602::21",
-      "kavlan-2": "2001:660:4406:681:2::21",
-      "kavlan-20": "2001:660:4406:3a0:602::21",
-      "kavlan-21": "2001:660:4406:6a0:602::21",
-      "kavlan-3": "2001:660:4406:682:2::21",
-      "kavlan-4": "2001:660:4406:690:2::21",
-      "kavlan-5": "2001:660:4406:691:2::21",
-      "kavlan-6": "2001:660:4406:692:2::21",
-      "kavlan-7": "2001:660:4406:693:2::21",
-      "kavlan-8": "2001:660:4406:694:2::21",
-      "kavlan-9": "2001:660:4406:695:2::21"
+      "kavlan-1": "2001:660:4406:680:2:0::21",
+      "kavlan-11": "2001:660:4406:1a0:602:0::21",
+      "kavlan-12": "2001:660:4406:2a0:602:0::21",
+      "kavlan-13": "2001:660:4406:4a0:602:0::21",
+      "kavlan-14": "2001:660:4406:5a0:602:0::21",
+      "kavlan-16": "2001:660:4406:7a0:602:0::21",
+      "kavlan-18": "2001:660:4406:8a0:602:0::21",
+      "kavlan-2": "2001:660:4406:681:2:0::21",
+      "kavlan-20": "2001:660:4406:3a0:602:0::21",
+      "kavlan-21": "2001:660:4406:6a0:602:0::21",
+      "kavlan-3": "2001:660:4406:682:2:0::21",
+      "kavlan-4": "2001:660:4406:690:2:0::21",
+      "kavlan-5": "2001:660:4406:691:2:0::21",
+      "kavlan-6": "2001:660:4406:692:2:0::21",
+      "kavlan-7": "2001:660:4406:693:2:0::21",
+      "kavlan-8": "2001:660:4406:694:2:0::21",
+      "kavlan-9": "2001:660:4406:695:2:0::21"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::21",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.33",
-      "ip6": "2001:660:4406:600:2::21",
+      "ip6": "2001:660:4406:600:2:0::21",
       "kavlan": true,
       "mac": "24:6e:96:6a:4e:88",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-34.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-34.json
index ee6b9a2e3d6..79e02780792 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-34.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-34.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::22",
-      "kavlan-11": "2001:660:4406:1a0:602::22",
-      "kavlan-12": "2001:660:4406:2a0:602::22",
-      "kavlan-13": "2001:660:4406:4a0:602::22",
-      "kavlan-14": "2001:660:4406:5a0:602::22",
-      "kavlan-16": "2001:660:4406:7a0:602::22",
-      "kavlan-18": "2001:660:4406:8a0:602::22",
-      "kavlan-2": "2001:660:4406:681:2::22",
-      "kavlan-20": "2001:660:4406:3a0:602::22",
-      "kavlan-21": "2001:660:4406:6a0:602::22",
-      "kavlan-3": "2001:660:4406:682:2::22",
-      "kavlan-4": "2001:660:4406:690:2::22",
-      "kavlan-5": "2001:660:4406:691:2::22",
-      "kavlan-6": "2001:660:4406:692:2::22",
-      "kavlan-7": "2001:660:4406:693:2::22",
-      "kavlan-8": "2001:660:4406:694:2::22",
-      "kavlan-9": "2001:660:4406:695:2::22"
+      "kavlan-1": "2001:660:4406:680:2:0::22",
+      "kavlan-11": "2001:660:4406:1a0:602:0::22",
+      "kavlan-12": "2001:660:4406:2a0:602:0::22",
+      "kavlan-13": "2001:660:4406:4a0:602:0::22",
+      "kavlan-14": "2001:660:4406:5a0:602:0::22",
+      "kavlan-16": "2001:660:4406:7a0:602:0::22",
+      "kavlan-18": "2001:660:4406:8a0:602:0::22",
+      "kavlan-2": "2001:660:4406:681:2:0::22",
+      "kavlan-20": "2001:660:4406:3a0:602:0::22",
+      "kavlan-21": "2001:660:4406:6a0:602:0::22",
+      "kavlan-3": "2001:660:4406:682:2:0::22",
+      "kavlan-4": "2001:660:4406:690:2:0::22",
+      "kavlan-5": "2001:660:4406:691:2:0::22",
+      "kavlan-6": "2001:660:4406:692:2:0::22",
+      "kavlan-7": "2001:660:4406:693:2:0::22",
+      "kavlan-8": "2001:660:4406:694:2:0::22",
+      "kavlan-9": "2001:660:4406:695:2:0::22"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::22",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.34",
-      "ip6": "2001:660:4406:600:2::22",
+      "ip6": "2001:660:4406:600:2:0::22",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:48",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-35.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-35.json
index 6a642554c5a..52f6e0e4f6b 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-35.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-35.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::23",
-      "kavlan-11": "2001:660:4406:1a0:602::23",
-      "kavlan-12": "2001:660:4406:2a0:602::23",
-      "kavlan-13": "2001:660:4406:4a0:602::23",
-      "kavlan-14": "2001:660:4406:5a0:602::23",
-      "kavlan-16": "2001:660:4406:7a0:602::23",
-      "kavlan-18": "2001:660:4406:8a0:602::23",
-      "kavlan-2": "2001:660:4406:681:2::23",
-      "kavlan-20": "2001:660:4406:3a0:602::23",
-      "kavlan-21": "2001:660:4406:6a0:602::23",
-      "kavlan-3": "2001:660:4406:682:2::23",
-      "kavlan-4": "2001:660:4406:690:2::23",
-      "kavlan-5": "2001:660:4406:691:2::23",
-      "kavlan-6": "2001:660:4406:692:2::23",
-      "kavlan-7": "2001:660:4406:693:2::23",
-      "kavlan-8": "2001:660:4406:694:2::23",
-      "kavlan-9": "2001:660:4406:695:2::23"
+      "kavlan-1": "2001:660:4406:680:2:0::23",
+      "kavlan-11": "2001:660:4406:1a0:602:0::23",
+      "kavlan-12": "2001:660:4406:2a0:602:0::23",
+      "kavlan-13": "2001:660:4406:4a0:602:0::23",
+      "kavlan-14": "2001:660:4406:5a0:602:0::23",
+      "kavlan-16": "2001:660:4406:7a0:602:0::23",
+      "kavlan-18": "2001:660:4406:8a0:602:0::23",
+      "kavlan-2": "2001:660:4406:681:2:0::23",
+      "kavlan-20": "2001:660:4406:3a0:602:0::23",
+      "kavlan-21": "2001:660:4406:6a0:602:0::23",
+      "kavlan-3": "2001:660:4406:682:2:0::23",
+      "kavlan-4": "2001:660:4406:690:2:0::23",
+      "kavlan-5": "2001:660:4406:691:2:0::23",
+      "kavlan-6": "2001:660:4406:692:2:0::23",
+      "kavlan-7": "2001:660:4406:693:2:0::23",
+      "kavlan-8": "2001:660:4406:694:2:0::23",
+      "kavlan-9": "2001:660:4406:695:2:0::23"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::23",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.35",
-      "ip6": "2001:660:4406:600:2::23",
+      "ip6": "2001:660:4406:600:2:0::23",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:20",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-36.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-36.json
index 175e404e760..39e2fac1854 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-36.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-36.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::24",
-      "kavlan-11": "2001:660:4406:1a0:602::24",
-      "kavlan-12": "2001:660:4406:2a0:602::24",
-      "kavlan-13": "2001:660:4406:4a0:602::24",
-      "kavlan-14": "2001:660:4406:5a0:602::24",
-      "kavlan-16": "2001:660:4406:7a0:602::24",
-      "kavlan-18": "2001:660:4406:8a0:602::24",
-      "kavlan-2": "2001:660:4406:681:2::24",
-      "kavlan-20": "2001:660:4406:3a0:602::24",
-      "kavlan-21": "2001:660:4406:6a0:602::24",
-      "kavlan-3": "2001:660:4406:682:2::24",
-      "kavlan-4": "2001:660:4406:690:2::24",
-      "kavlan-5": "2001:660:4406:691:2::24",
-      "kavlan-6": "2001:660:4406:692:2::24",
-      "kavlan-7": "2001:660:4406:693:2::24",
-      "kavlan-8": "2001:660:4406:694:2::24",
-      "kavlan-9": "2001:660:4406:695:2::24"
+      "kavlan-1": "2001:660:4406:680:2:0::24",
+      "kavlan-11": "2001:660:4406:1a0:602:0::24",
+      "kavlan-12": "2001:660:4406:2a0:602:0::24",
+      "kavlan-13": "2001:660:4406:4a0:602:0::24",
+      "kavlan-14": "2001:660:4406:5a0:602:0::24",
+      "kavlan-16": "2001:660:4406:7a0:602:0::24",
+      "kavlan-18": "2001:660:4406:8a0:602:0::24",
+      "kavlan-2": "2001:660:4406:681:2:0::24",
+      "kavlan-20": "2001:660:4406:3a0:602:0::24",
+      "kavlan-21": "2001:660:4406:6a0:602:0::24",
+      "kavlan-3": "2001:660:4406:682:2:0::24",
+      "kavlan-4": "2001:660:4406:690:2:0::24",
+      "kavlan-5": "2001:660:4406:691:2:0::24",
+      "kavlan-6": "2001:660:4406:692:2:0::24",
+      "kavlan-7": "2001:660:4406:693:2:0::24",
+      "kavlan-8": "2001:660:4406:694:2:0::24",
+      "kavlan-9": "2001:660:4406:695:2:0::24"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::24",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.36",
-      "ip6": "2001:660:4406:600:2::24",
+      "ip6": "2001:660:4406:600:2:0::24",
       "kavlan": true,
       "mac": "24:6e:96:6a:56:60",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-37.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-37.json
index af6c65a906f..b057c1bb562 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-37.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-37.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::25",
-      "kavlan-11": "2001:660:4406:1a0:602::25",
-      "kavlan-12": "2001:660:4406:2a0:602::25",
-      "kavlan-13": "2001:660:4406:4a0:602::25",
-      "kavlan-14": "2001:660:4406:5a0:602::25",
-      "kavlan-16": "2001:660:4406:7a0:602::25",
-      "kavlan-18": "2001:660:4406:8a0:602::25",
-      "kavlan-2": "2001:660:4406:681:2::25",
-      "kavlan-20": "2001:660:4406:3a0:602::25",
-      "kavlan-21": "2001:660:4406:6a0:602::25",
-      "kavlan-3": "2001:660:4406:682:2::25",
-      "kavlan-4": "2001:660:4406:690:2::25",
-      "kavlan-5": "2001:660:4406:691:2::25",
-      "kavlan-6": "2001:660:4406:692:2::25",
-      "kavlan-7": "2001:660:4406:693:2::25",
-      "kavlan-8": "2001:660:4406:694:2::25",
-      "kavlan-9": "2001:660:4406:695:2::25"
+      "kavlan-1": "2001:660:4406:680:2:0::25",
+      "kavlan-11": "2001:660:4406:1a0:602:0::25",
+      "kavlan-12": "2001:660:4406:2a0:602:0::25",
+      "kavlan-13": "2001:660:4406:4a0:602:0::25",
+      "kavlan-14": "2001:660:4406:5a0:602:0::25",
+      "kavlan-16": "2001:660:4406:7a0:602:0::25",
+      "kavlan-18": "2001:660:4406:8a0:602:0::25",
+      "kavlan-2": "2001:660:4406:681:2:0::25",
+      "kavlan-20": "2001:660:4406:3a0:602:0::25",
+      "kavlan-21": "2001:660:4406:6a0:602:0::25",
+      "kavlan-3": "2001:660:4406:682:2:0::25",
+      "kavlan-4": "2001:660:4406:690:2:0::25",
+      "kavlan-5": "2001:660:4406:691:2:0::25",
+      "kavlan-6": "2001:660:4406:692:2:0::25",
+      "kavlan-7": "2001:660:4406:693:2:0::25",
+      "kavlan-8": "2001:660:4406:694:2:0::25",
+      "kavlan-9": "2001:660:4406:695:2:0::25"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::25",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.37",
-      "ip6": "2001:660:4406:600:2::25",
+      "ip6": "2001:660:4406:600:2:0::25",
       "kavlan": true,
       "mac": "24:6e:96:6a:cc:d0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-38.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-38.json
index 75fb2decd41..1ca468785c9 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-38.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-38.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::26",
-      "kavlan-11": "2001:660:4406:1a0:602::26",
-      "kavlan-12": "2001:660:4406:2a0:602::26",
-      "kavlan-13": "2001:660:4406:4a0:602::26",
-      "kavlan-14": "2001:660:4406:5a0:602::26",
-      "kavlan-16": "2001:660:4406:7a0:602::26",
-      "kavlan-18": "2001:660:4406:8a0:602::26",
-      "kavlan-2": "2001:660:4406:681:2::26",
-      "kavlan-20": "2001:660:4406:3a0:602::26",
-      "kavlan-21": "2001:660:4406:6a0:602::26",
-      "kavlan-3": "2001:660:4406:682:2::26",
-      "kavlan-4": "2001:660:4406:690:2::26",
-      "kavlan-5": "2001:660:4406:691:2::26",
-      "kavlan-6": "2001:660:4406:692:2::26",
-      "kavlan-7": "2001:660:4406:693:2::26",
-      "kavlan-8": "2001:660:4406:694:2::26",
-      "kavlan-9": "2001:660:4406:695:2::26"
+      "kavlan-1": "2001:660:4406:680:2:0::26",
+      "kavlan-11": "2001:660:4406:1a0:602:0::26",
+      "kavlan-12": "2001:660:4406:2a0:602:0::26",
+      "kavlan-13": "2001:660:4406:4a0:602:0::26",
+      "kavlan-14": "2001:660:4406:5a0:602:0::26",
+      "kavlan-16": "2001:660:4406:7a0:602:0::26",
+      "kavlan-18": "2001:660:4406:8a0:602:0::26",
+      "kavlan-2": "2001:660:4406:681:2:0::26",
+      "kavlan-20": "2001:660:4406:3a0:602:0::26",
+      "kavlan-21": "2001:660:4406:6a0:602:0::26",
+      "kavlan-3": "2001:660:4406:682:2:0::26",
+      "kavlan-4": "2001:660:4406:690:2:0::26",
+      "kavlan-5": "2001:660:4406:691:2:0::26",
+      "kavlan-6": "2001:660:4406:692:2:0::26",
+      "kavlan-7": "2001:660:4406:693:2:0::26",
+      "kavlan-8": "2001:660:4406:694:2:0::26",
+      "kavlan-9": "2001:660:4406:695:2:0::26"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::26",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.38",
-      "ip6": "2001:660:4406:600:2::26",
+      "ip6": "2001:660:4406:600:2:0::26",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:88",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-39.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-39.json
index 9b41c9e42a5..56af7c6f968 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-39.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-39.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::27",
-      "kavlan-11": "2001:660:4406:1a0:602::27",
-      "kavlan-12": "2001:660:4406:2a0:602::27",
-      "kavlan-13": "2001:660:4406:4a0:602::27",
-      "kavlan-14": "2001:660:4406:5a0:602::27",
-      "kavlan-16": "2001:660:4406:7a0:602::27",
-      "kavlan-18": "2001:660:4406:8a0:602::27",
-      "kavlan-2": "2001:660:4406:681:2::27",
-      "kavlan-20": "2001:660:4406:3a0:602::27",
-      "kavlan-21": "2001:660:4406:6a0:602::27",
-      "kavlan-3": "2001:660:4406:682:2::27",
-      "kavlan-4": "2001:660:4406:690:2::27",
-      "kavlan-5": "2001:660:4406:691:2::27",
-      "kavlan-6": "2001:660:4406:692:2::27",
-      "kavlan-7": "2001:660:4406:693:2::27",
-      "kavlan-8": "2001:660:4406:694:2::27",
-      "kavlan-9": "2001:660:4406:695:2::27"
+      "kavlan-1": "2001:660:4406:680:2:0::27",
+      "kavlan-11": "2001:660:4406:1a0:602:0::27",
+      "kavlan-12": "2001:660:4406:2a0:602:0::27",
+      "kavlan-13": "2001:660:4406:4a0:602:0::27",
+      "kavlan-14": "2001:660:4406:5a0:602:0::27",
+      "kavlan-16": "2001:660:4406:7a0:602:0::27",
+      "kavlan-18": "2001:660:4406:8a0:602:0::27",
+      "kavlan-2": "2001:660:4406:681:2:0::27",
+      "kavlan-20": "2001:660:4406:3a0:602:0::27",
+      "kavlan-21": "2001:660:4406:6a0:602:0::27",
+      "kavlan-3": "2001:660:4406:682:2:0::27",
+      "kavlan-4": "2001:660:4406:690:2:0::27",
+      "kavlan-5": "2001:660:4406:691:2:0::27",
+      "kavlan-6": "2001:660:4406:692:2:0::27",
+      "kavlan-7": "2001:660:4406:693:2:0::27",
+      "kavlan-8": "2001:660:4406:694:2:0::27",
+      "kavlan-9": "2001:660:4406:695:2:0::27"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::27",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.39",
-      "ip6": "2001:660:4406:600:2::27",
+      "ip6": "2001:660:4406:600:2:0::27",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:18",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-4.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-4.json
index b4d7ee9f15a..efce24a3d71 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-4.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-4.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::4",
-      "kavlan-11": "2001:660:4406:1a0:602::4",
-      "kavlan-12": "2001:660:4406:2a0:602::4",
-      "kavlan-13": "2001:660:4406:4a0:602::4",
-      "kavlan-14": "2001:660:4406:5a0:602::4",
-      "kavlan-16": "2001:660:4406:7a0:602::4",
-      "kavlan-18": "2001:660:4406:8a0:602::4",
-      "kavlan-2": "2001:660:4406:681:2::4",
-      "kavlan-20": "2001:660:4406:3a0:602::4",
-      "kavlan-21": "2001:660:4406:6a0:602::4",
-      "kavlan-3": "2001:660:4406:682:2::4",
-      "kavlan-4": "2001:660:4406:690:2::4",
-      "kavlan-5": "2001:660:4406:691:2::4",
-      "kavlan-6": "2001:660:4406:692:2::4",
-      "kavlan-7": "2001:660:4406:693:2::4",
-      "kavlan-8": "2001:660:4406:694:2::4",
-      "kavlan-9": "2001:660:4406:695:2::4"
+      "kavlan-1": "2001:660:4406:680:2:0::4",
+      "kavlan-11": "2001:660:4406:1a0:602:0::4",
+      "kavlan-12": "2001:660:4406:2a0:602:0::4",
+      "kavlan-13": "2001:660:4406:4a0:602:0::4",
+      "kavlan-14": "2001:660:4406:5a0:602:0::4",
+      "kavlan-16": "2001:660:4406:7a0:602:0::4",
+      "kavlan-18": "2001:660:4406:8a0:602:0::4",
+      "kavlan-2": "2001:660:4406:681:2:0::4",
+      "kavlan-20": "2001:660:4406:3a0:602:0::4",
+      "kavlan-21": "2001:660:4406:6a0:602:0::4",
+      "kavlan-3": "2001:660:4406:682:2:0::4",
+      "kavlan-4": "2001:660:4406:690:2:0::4",
+      "kavlan-5": "2001:660:4406:691:2:0::4",
+      "kavlan-6": "2001:660:4406:692:2:0::4",
+      "kavlan-7": "2001:660:4406:693:2:0::4",
+      "kavlan-8": "2001:660:4406:694:2:0::4",
+      "kavlan-9": "2001:660:4406:695:2:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::4",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.4",
-      "ip6": "2001:660:4406:600:2::4",
+      "ip6": "2001:660:4406:600:2:0::4",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:08",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-40.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-40.json
index ada62456a47..4e10503a7e9 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-40.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-40.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::28",
-      "kavlan-11": "2001:660:4406:1a0:602::28",
-      "kavlan-12": "2001:660:4406:2a0:602::28",
-      "kavlan-13": "2001:660:4406:4a0:602::28",
-      "kavlan-14": "2001:660:4406:5a0:602::28",
-      "kavlan-16": "2001:660:4406:7a0:602::28",
-      "kavlan-18": "2001:660:4406:8a0:602::28",
-      "kavlan-2": "2001:660:4406:681:2::28",
-      "kavlan-20": "2001:660:4406:3a0:602::28",
-      "kavlan-21": "2001:660:4406:6a0:602::28",
-      "kavlan-3": "2001:660:4406:682:2::28",
-      "kavlan-4": "2001:660:4406:690:2::28",
-      "kavlan-5": "2001:660:4406:691:2::28",
-      "kavlan-6": "2001:660:4406:692:2::28",
-      "kavlan-7": "2001:660:4406:693:2::28",
-      "kavlan-8": "2001:660:4406:694:2::28",
-      "kavlan-9": "2001:660:4406:695:2::28"
+      "kavlan-1": "2001:660:4406:680:2:0::28",
+      "kavlan-11": "2001:660:4406:1a0:602:0::28",
+      "kavlan-12": "2001:660:4406:2a0:602:0::28",
+      "kavlan-13": "2001:660:4406:4a0:602:0::28",
+      "kavlan-14": "2001:660:4406:5a0:602:0::28",
+      "kavlan-16": "2001:660:4406:7a0:602:0::28",
+      "kavlan-18": "2001:660:4406:8a0:602:0::28",
+      "kavlan-2": "2001:660:4406:681:2:0::28",
+      "kavlan-20": "2001:660:4406:3a0:602:0::28",
+      "kavlan-21": "2001:660:4406:6a0:602:0::28",
+      "kavlan-3": "2001:660:4406:682:2:0::28",
+      "kavlan-4": "2001:660:4406:690:2:0::28",
+      "kavlan-5": "2001:660:4406:691:2:0::28",
+      "kavlan-6": "2001:660:4406:692:2:0::28",
+      "kavlan-7": "2001:660:4406:693:2:0::28",
+      "kavlan-8": "2001:660:4406:694:2:0::28",
+      "kavlan-9": "2001:660:4406:695:2:0::28"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::28",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.40",
-      "ip6": "2001:660:4406:600:2::28",
+      "ip6": "2001:660:4406:600:2:0::28",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:20",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-41.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-41.json
index b66e63dc7bf..aefbe2c38d4 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-41.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-41.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::29",
-      "kavlan-11": "2001:660:4406:1a0:602::29",
-      "kavlan-12": "2001:660:4406:2a0:602::29",
-      "kavlan-13": "2001:660:4406:4a0:602::29",
-      "kavlan-14": "2001:660:4406:5a0:602::29",
-      "kavlan-16": "2001:660:4406:7a0:602::29",
-      "kavlan-18": "2001:660:4406:8a0:602::29",
-      "kavlan-2": "2001:660:4406:681:2::29",
-      "kavlan-20": "2001:660:4406:3a0:602::29",
-      "kavlan-21": "2001:660:4406:6a0:602::29",
-      "kavlan-3": "2001:660:4406:682:2::29",
-      "kavlan-4": "2001:660:4406:690:2::29",
-      "kavlan-5": "2001:660:4406:691:2::29",
-      "kavlan-6": "2001:660:4406:692:2::29",
-      "kavlan-7": "2001:660:4406:693:2::29",
-      "kavlan-8": "2001:660:4406:694:2::29",
-      "kavlan-9": "2001:660:4406:695:2::29"
+      "kavlan-1": "2001:660:4406:680:2:0::29",
+      "kavlan-11": "2001:660:4406:1a0:602:0::29",
+      "kavlan-12": "2001:660:4406:2a0:602:0::29",
+      "kavlan-13": "2001:660:4406:4a0:602:0::29",
+      "kavlan-14": "2001:660:4406:5a0:602:0::29",
+      "kavlan-16": "2001:660:4406:7a0:602:0::29",
+      "kavlan-18": "2001:660:4406:8a0:602:0::29",
+      "kavlan-2": "2001:660:4406:681:2:0::29",
+      "kavlan-20": "2001:660:4406:3a0:602:0::29",
+      "kavlan-21": "2001:660:4406:6a0:602:0::29",
+      "kavlan-3": "2001:660:4406:682:2:0::29",
+      "kavlan-4": "2001:660:4406:690:2:0::29",
+      "kavlan-5": "2001:660:4406:691:2:0::29",
+      "kavlan-6": "2001:660:4406:692:2:0::29",
+      "kavlan-7": "2001:660:4406:693:2:0::29",
+      "kavlan-8": "2001:660:4406:694:2:0::29",
+      "kavlan-9": "2001:660:4406:695:2:0::29"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::29",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.41",
-      "ip6": "2001:660:4406:600:2::29",
+      "ip6": "2001:660:4406:600:2:0::29",
       "kavlan": true,
       "mac": "24:6e:96:6a:49:08",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-42.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-42.json
index b89062c4834..c62f002f65f 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-42.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-42.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::2a",
-      "kavlan-11": "2001:660:4406:1a0:602::2a",
-      "kavlan-12": "2001:660:4406:2a0:602::2a",
-      "kavlan-13": "2001:660:4406:4a0:602::2a",
-      "kavlan-14": "2001:660:4406:5a0:602::2a",
-      "kavlan-16": "2001:660:4406:7a0:602::2a",
-      "kavlan-18": "2001:660:4406:8a0:602::2a",
-      "kavlan-2": "2001:660:4406:681:2::2a",
-      "kavlan-20": "2001:660:4406:3a0:602::2a",
-      "kavlan-21": "2001:660:4406:6a0:602::2a",
-      "kavlan-3": "2001:660:4406:682:2::2a",
-      "kavlan-4": "2001:660:4406:690:2::2a",
-      "kavlan-5": "2001:660:4406:691:2::2a",
-      "kavlan-6": "2001:660:4406:692:2::2a",
-      "kavlan-7": "2001:660:4406:693:2::2a",
-      "kavlan-8": "2001:660:4406:694:2::2a",
-      "kavlan-9": "2001:660:4406:695:2::2a"
+      "kavlan-1": "2001:660:4406:680:2:0::2a",
+      "kavlan-11": "2001:660:4406:1a0:602:0::2a",
+      "kavlan-12": "2001:660:4406:2a0:602:0::2a",
+      "kavlan-13": "2001:660:4406:4a0:602:0::2a",
+      "kavlan-14": "2001:660:4406:5a0:602:0::2a",
+      "kavlan-16": "2001:660:4406:7a0:602:0::2a",
+      "kavlan-18": "2001:660:4406:8a0:602:0::2a",
+      "kavlan-2": "2001:660:4406:681:2:0::2a",
+      "kavlan-20": "2001:660:4406:3a0:602:0::2a",
+      "kavlan-21": "2001:660:4406:6a0:602:0::2a",
+      "kavlan-3": "2001:660:4406:682:2:0::2a",
+      "kavlan-4": "2001:660:4406:690:2:0::2a",
+      "kavlan-5": "2001:660:4406:691:2:0::2a",
+      "kavlan-6": "2001:660:4406:692:2:0::2a",
+      "kavlan-7": "2001:660:4406:693:2:0::2a",
+      "kavlan-8": "2001:660:4406:694:2:0::2a",
+      "kavlan-9": "2001:660:4406:695:2:0::2a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::2a",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.42",
-      "ip6": "2001:660:4406:600:2::2a",
+      "ip6": "2001:660:4406:600:2:0::2a",
       "kavlan": true,
       "mac": "24:6e:96:6a:4c:e8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-43.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-43.json
index 7630d42af02..53c198523a7 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-43.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-43.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::2b",
-      "kavlan-11": "2001:660:4406:1a0:602::2b",
-      "kavlan-12": "2001:660:4406:2a0:602::2b",
-      "kavlan-13": "2001:660:4406:4a0:602::2b",
-      "kavlan-14": "2001:660:4406:5a0:602::2b",
-      "kavlan-16": "2001:660:4406:7a0:602::2b",
-      "kavlan-18": "2001:660:4406:8a0:602::2b",
-      "kavlan-2": "2001:660:4406:681:2::2b",
-      "kavlan-20": "2001:660:4406:3a0:602::2b",
-      "kavlan-21": "2001:660:4406:6a0:602::2b",
-      "kavlan-3": "2001:660:4406:682:2::2b",
-      "kavlan-4": "2001:660:4406:690:2::2b",
-      "kavlan-5": "2001:660:4406:691:2::2b",
-      "kavlan-6": "2001:660:4406:692:2::2b",
-      "kavlan-7": "2001:660:4406:693:2::2b",
-      "kavlan-8": "2001:660:4406:694:2::2b",
-      "kavlan-9": "2001:660:4406:695:2::2b"
+      "kavlan-1": "2001:660:4406:680:2:0::2b",
+      "kavlan-11": "2001:660:4406:1a0:602:0::2b",
+      "kavlan-12": "2001:660:4406:2a0:602:0::2b",
+      "kavlan-13": "2001:660:4406:4a0:602:0::2b",
+      "kavlan-14": "2001:660:4406:5a0:602:0::2b",
+      "kavlan-16": "2001:660:4406:7a0:602:0::2b",
+      "kavlan-18": "2001:660:4406:8a0:602:0::2b",
+      "kavlan-2": "2001:660:4406:681:2:0::2b",
+      "kavlan-20": "2001:660:4406:3a0:602:0::2b",
+      "kavlan-21": "2001:660:4406:6a0:602:0::2b",
+      "kavlan-3": "2001:660:4406:682:2:0::2b",
+      "kavlan-4": "2001:660:4406:690:2:0::2b",
+      "kavlan-5": "2001:660:4406:691:2:0::2b",
+      "kavlan-6": "2001:660:4406:692:2:0::2b",
+      "kavlan-7": "2001:660:4406:693:2:0::2b",
+      "kavlan-8": "2001:660:4406:694:2:0::2b",
+      "kavlan-9": "2001:660:4406:695:2:0::2b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::2b",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.43",
-      "ip6": "2001:660:4406:600:2::2b",
+      "ip6": "2001:660:4406:600:2:0::2b",
       "kavlan": true,
       "mac": "24:6e:96:6a:d0:80",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-44.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-44.json
index f4b4f0dd11c..baa2c3a49dd 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-44.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-44.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::2c",
-      "kavlan-11": "2001:660:4406:1a0:602::2c",
-      "kavlan-12": "2001:660:4406:2a0:602::2c",
-      "kavlan-13": "2001:660:4406:4a0:602::2c",
-      "kavlan-14": "2001:660:4406:5a0:602::2c",
-      "kavlan-16": "2001:660:4406:7a0:602::2c",
-      "kavlan-18": "2001:660:4406:8a0:602::2c",
-      "kavlan-2": "2001:660:4406:681:2::2c",
-      "kavlan-20": "2001:660:4406:3a0:602::2c",
-      "kavlan-21": "2001:660:4406:6a0:602::2c",
-      "kavlan-3": "2001:660:4406:682:2::2c",
-      "kavlan-4": "2001:660:4406:690:2::2c",
-      "kavlan-5": "2001:660:4406:691:2::2c",
-      "kavlan-6": "2001:660:4406:692:2::2c",
-      "kavlan-7": "2001:660:4406:693:2::2c",
-      "kavlan-8": "2001:660:4406:694:2::2c",
-      "kavlan-9": "2001:660:4406:695:2::2c"
+      "kavlan-1": "2001:660:4406:680:2:0::2c",
+      "kavlan-11": "2001:660:4406:1a0:602:0::2c",
+      "kavlan-12": "2001:660:4406:2a0:602:0::2c",
+      "kavlan-13": "2001:660:4406:4a0:602:0::2c",
+      "kavlan-14": "2001:660:4406:5a0:602:0::2c",
+      "kavlan-16": "2001:660:4406:7a0:602:0::2c",
+      "kavlan-18": "2001:660:4406:8a0:602:0::2c",
+      "kavlan-2": "2001:660:4406:681:2:0::2c",
+      "kavlan-20": "2001:660:4406:3a0:602:0::2c",
+      "kavlan-21": "2001:660:4406:6a0:602:0::2c",
+      "kavlan-3": "2001:660:4406:682:2:0::2c",
+      "kavlan-4": "2001:660:4406:690:2:0::2c",
+      "kavlan-5": "2001:660:4406:691:2:0::2c",
+      "kavlan-6": "2001:660:4406:692:2:0::2c",
+      "kavlan-7": "2001:660:4406:693:2:0::2c",
+      "kavlan-8": "2001:660:4406:694:2:0::2c",
+      "kavlan-9": "2001:660:4406:695:2:0::2c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::2c",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.44",
-      "ip6": "2001:660:4406:600:2::2c",
+      "ip6": "2001:660:4406:600:2:0::2c",
       "kavlan": true,
       "mac": "24:6e:96:6a:63:50",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-45.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-45.json
index d53aefb4011..4a7cfb3b1a0 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-45.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-45.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::2d",
-      "kavlan-11": "2001:660:4406:1a0:602::2d",
-      "kavlan-12": "2001:660:4406:2a0:602::2d",
-      "kavlan-13": "2001:660:4406:4a0:602::2d",
-      "kavlan-14": "2001:660:4406:5a0:602::2d",
-      "kavlan-16": "2001:660:4406:7a0:602::2d",
-      "kavlan-18": "2001:660:4406:8a0:602::2d",
-      "kavlan-2": "2001:660:4406:681:2::2d",
-      "kavlan-20": "2001:660:4406:3a0:602::2d",
-      "kavlan-21": "2001:660:4406:6a0:602::2d",
-      "kavlan-3": "2001:660:4406:682:2::2d",
-      "kavlan-4": "2001:660:4406:690:2::2d",
-      "kavlan-5": "2001:660:4406:691:2::2d",
-      "kavlan-6": "2001:660:4406:692:2::2d",
-      "kavlan-7": "2001:660:4406:693:2::2d",
-      "kavlan-8": "2001:660:4406:694:2::2d",
-      "kavlan-9": "2001:660:4406:695:2::2d"
+      "kavlan-1": "2001:660:4406:680:2:0::2d",
+      "kavlan-11": "2001:660:4406:1a0:602:0::2d",
+      "kavlan-12": "2001:660:4406:2a0:602:0::2d",
+      "kavlan-13": "2001:660:4406:4a0:602:0::2d",
+      "kavlan-14": "2001:660:4406:5a0:602:0::2d",
+      "kavlan-16": "2001:660:4406:7a0:602:0::2d",
+      "kavlan-18": "2001:660:4406:8a0:602:0::2d",
+      "kavlan-2": "2001:660:4406:681:2:0::2d",
+      "kavlan-20": "2001:660:4406:3a0:602:0::2d",
+      "kavlan-21": "2001:660:4406:6a0:602:0::2d",
+      "kavlan-3": "2001:660:4406:682:2:0::2d",
+      "kavlan-4": "2001:660:4406:690:2:0::2d",
+      "kavlan-5": "2001:660:4406:691:2:0::2d",
+      "kavlan-6": "2001:660:4406:692:2:0::2d",
+      "kavlan-7": "2001:660:4406:693:2:0::2d",
+      "kavlan-8": "2001:660:4406:694:2:0::2d",
+      "kavlan-9": "2001:660:4406:695:2:0::2d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::2d",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.45",
-      "ip6": "2001:660:4406:600:2::2d",
+      "ip6": "2001:660:4406:600:2:0::2d",
       "kavlan": true,
       "mac": "24:6e:96:6a:47:40",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-46.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-46.json
index 78273052860..d18d9aa3ae4 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-46.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-46.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::2e",
-      "kavlan-11": "2001:660:4406:1a0:602::2e",
-      "kavlan-12": "2001:660:4406:2a0:602::2e",
-      "kavlan-13": "2001:660:4406:4a0:602::2e",
-      "kavlan-14": "2001:660:4406:5a0:602::2e",
-      "kavlan-16": "2001:660:4406:7a0:602::2e",
-      "kavlan-18": "2001:660:4406:8a0:602::2e",
-      "kavlan-2": "2001:660:4406:681:2::2e",
-      "kavlan-20": "2001:660:4406:3a0:602::2e",
-      "kavlan-21": "2001:660:4406:6a0:602::2e",
-      "kavlan-3": "2001:660:4406:682:2::2e",
-      "kavlan-4": "2001:660:4406:690:2::2e",
-      "kavlan-5": "2001:660:4406:691:2::2e",
-      "kavlan-6": "2001:660:4406:692:2::2e",
-      "kavlan-7": "2001:660:4406:693:2::2e",
-      "kavlan-8": "2001:660:4406:694:2::2e",
-      "kavlan-9": "2001:660:4406:695:2::2e"
+      "kavlan-1": "2001:660:4406:680:2:0::2e",
+      "kavlan-11": "2001:660:4406:1a0:602:0::2e",
+      "kavlan-12": "2001:660:4406:2a0:602:0::2e",
+      "kavlan-13": "2001:660:4406:4a0:602:0::2e",
+      "kavlan-14": "2001:660:4406:5a0:602:0::2e",
+      "kavlan-16": "2001:660:4406:7a0:602:0::2e",
+      "kavlan-18": "2001:660:4406:8a0:602:0::2e",
+      "kavlan-2": "2001:660:4406:681:2:0::2e",
+      "kavlan-20": "2001:660:4406:3a0:602:0::2e",
+      "kavlan-21": "2001:660:4406:6a0:602:0::2e",
+      "kavlan-3": "2001:660:4406:682:2:0::2e",
+      "kavlan-4": "2001:660:4406:690:2:0::2e",
+      "kavlan-5": "2001:660:4406:691:2:0::2e",
+      "kavlan-6": "2001:660:4406:692:2:0::2e",
+      "kavlan-7": "2001:660:4406:693:2:0::2e",
+      "kavlan-8": "2001:660:4406:694:2:0::2e",
+      "kavlan-9": "2001:660:4406:695:2:0::2e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::2e",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.46",
-      "ip6": "2001:660:4406:600:2::2e",
+      "ip6": "2001:660:4406:600:2:0::2e",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:a8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-47.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-47.json
index c09ad64b82f..a971e67f4b9 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-47.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-47.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::2f",
-      "kavlan-11": "2001:660:4406:1a0:602::2f",
-      "kavlan-12": "2001:660:4406:2a0:602::2f",
-      "kavlan-13": "2001:660:4406:4a0:602::2f",
-      "kavlan-14": "2001:660:4406:5a0:602::2f",
-      "kavlan-16": "2001:660:4406:7a0:602::2f",
-      "kavlan-18": "2001:660:4406:8a0:602::2f",
-      "kavlan-2": "2001:660:4406:681:2::2f",
-      "kavlan-20": "2001:660:4406:3a0:602::2f",
-      "kavlan-21": "2001:660:4406:6a0:602::2f",
-      "kavlan-3": "2001:660:4406:682:2::2f",
-      "kavlan-4": "2001:660:4406:690:2::2f",
-      "kavlan-5": "2001:660:4406:691:2::2f",
-      "kavlan-6": "2001:660:4406:692:2::2f",
-      "kavlan-7": "2001:660:4406:693:2::2f",
-      "kavlan-8": "2001:660:4406:694:2::2f",
-      "kavlan-9": "2001:660:4406:695:2::2f"
+      "kavlan-1": "2001:660:4406:680:2:0::2f",
+      "kavlan-11": "2001:660:4406:1a0:602:0::2f",
+      "kavlan-12": "2001:660:4406:2a0:602:0::2f",
+      "kavlan-13": "2001:660:4406:4a0:602:0::2f",
+      "kavlan-14": "2001:660:4406:5a0:602:0::2f",
+      "kavlan-16": "2001:660:4406:7a0:602:0::2f",
+      "kavlan-18": "2001:660:4406:8a0:602:0::2f",
+      "kavlan-2": "2001:660:4406:681:2:0::2f",
+      "kavlan-20": "2001:660:4406:3a0:602:0::2f",
+      "kavlan-21": "2001:660:4406:6a0:602:0::2f",
+      "kavlan-3": "2001:660:4406:682:2:0::2f",
+      "kavlan-4": "2001:660:4406:690:2:0::2f",
+      "kavlan-5": "2001:660:4406:691:2:0::2f",
+      "kavlan-6": "2001:660:4406:692:2:0::2f",
+      "kavlan-7": "2001:660:4406:693:2:0::2f",
+      "kavlan-8": "2001:660:4406:694:2:0::2f",
+      "kavlan-9": "2001:660:4406:695:2:0::2f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::2f",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.47",
-      "ip6": "2001:660:4406:600:2::2f",
+      "ip6": "2001:660:4406:600:2:0::2f",
       "kavlan": true,
       "mac": "24:6e:96:6a:d1:e8",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-48.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-48.json
index 9c44cc24636..44080b56bb9 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-48.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-48.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::30",
-      "kavlan-11": "2001:660:4406:1a0:602::30",
-      "kavlan-12": "2001:660:4406:2a0:602::30",
-      "kavlan-13": "2001:660:4406:4a0:602::30",
-      "kavlan-14": "2001:660:4406:5a0:602::30",
-      "kavlan-16": "2001:660:4406:7a0:602::30",
-      "kavlan-18": "2001:660:4406:8a0:602::30",
-      "kavlan-2": "2001:660:4406:681:2::30",
-      "kavlan-20": "2001:660:4406:3a0:602::30",
-      "kavlan-21": "2001:660:4406:6a0:602::30",
-      "kavlan-3": "2001:660:4406:682:2::30",
-      "kavlan-4": "2001:660:4406:690:2::30",
-      "kavlan-5": "2001:660:4406:691:2::30",
-      "kavlan-6": "2001:660:4406:692:2::30",
-      "kavlan-7": "2001:660:4406:693:2::30",
-      "kavlan-8": "2001:660:4406:694:2::30",
-      "kavlan-9": "2001:660:4406:695:2::30"
+      "kavlan-1": "2001:660:4406:680:2:0::30",
+      "kavlan-11": "2001:660:4406:1a0:602:0::30",
+      "kavlan-12": "2001:660:4406:2a0:602:0::30",
+      "kavlan-13": "2001:660:4406:4a0:602:0::30",
+      "kavlan-14": "2001:660:4406:5a0:602:0::30",
+      "kavlan-16": "2001:660:4406:7a0:602:0::30",
+      "kavlan-18": "2001:660:4406:8a0:602:0::30",
+      "kavlan-2": "2001:660:4406:681:2:0::30",
+      "kavlan-20": "2001:660:4406:3a0:602:0::30",
+      "kavlan-21": "2001:660:4406:6a0:602:0::30",
+      "kavlan-3": "2001:660:4406:682:2:0::30",
+      "kavlan-4": "2001:660:4406:690:2:0::30",
+      "kavlan-5": "2001:660:4406:691:2:0::30",
+      "kavlan-6": "2001:660:4406:692:2:0::30",
+      "kavlan-7": "2001:660:4406:693:2:0::30",
+      "kavlan-8": "2001:660:4406:694:2:0::30",
+      "kavlan-9": "2001:660:4406:695:2:0::30"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::30",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.48",
-      "ip6": "2001:660:4406:600:2::30",
+      "ip6": "2001:660:4406:600:2:0::30",
       "kavlan": true,
       "mac": "24:6e:96:6a:cf:50",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-5.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-5.json
index 9dfe6b6ef79..df158bf300f 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-5.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-5.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::5",
-      "kavlan-11": "2001:660:4406:1a0:602::5",
-      "kavlan-12": "2001:660:4406:2a0:602::5",
-      "kavlan-13": "2001:660:4406:4a0:602::5",
-      "kavlan-14": "2001:660:4406:5a0:602::5",
-      "kavlan-16": "2001:660:4406:7a0:602::5",
-      "kavlan-18": "2001:660:4406:8a0:602::5",
-      "kavlan-2": "2001:660:4406:681:2::5",
-      "kavlan-20": "2001:660:4406:3a0:602::5",
-      "kavlan-21": "2001:660:4406:6a0:602::5",
-      "kavlan-3": "2001:660:4406:682:2::5",
-      "kavlan-4": "2001:660:4406:690:2::5",
-      "kavlan-5": "2001:660:4406:691:2::5",
-      "kavlan-6": "2001:660:4406:692:2::5",
-      "kavlan-7": "2001:660:4406:693:2::5",
-      "kavlan-8": "2001:660:4406:694:2::5",
-      "kavlan-9": "2001:660:4406:695:2::5"
+      "kavlan-1": "2001:660:4406:680:2:0::5",
+      "kavlan-11": "2001:660:4406:1a0:602:0::5",
+      "kavlan-12": "2001:660:4406:2a0:602:0::5",
+      "kavlan-13": "2001:660:4406:4a0:602:0::5",
+      "kavlan-14": "2001:660:4406:5a0:602:0::5",
+      "kavlan-16": "2001:660:4406:7a0:602:0::5",
+      "kavlan-18": "2001:660:4406:8a0:602:0::5",
+      "kavlan-2": "2001:660:4406:681:2:0::5",
+      "kavlan-20": "2001:660:4406:3a0:602:0::5",
+      "kavlan-21": "2001:660:4406:6a0:602:0::5",
+      "kavlan-3": "2001:660:4406:682:2:0::5",
+      "kavlan-4": "2001:660:4406:690:2:0::5",
+      "kavlan-5": "2001:660:4406:691:2:0::5",
+      "kavlan-6": "2001:660:4406:692:2:0::5",
+      "kavlan-7": "2001:660:4406:693:2:0::5",
+      "kavlan-8": "2001:660:4406:694:2:0::5",
+      "kavlan-9": "2001:660:4406:695:2:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::5",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.5",
-      "ip6": "2001:660:4406:600:2::5",
+      "ip6": "2001:660:4406:600:2:0::5",
       "kavlan": true,
       "mac": "24:6e:96:6a:d3:28",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-6.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-6.json
index 4a550d2c4e0..c615dedcc34 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-6.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-6.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::6",
-      "kavlan-11": "2001:660:4406:1a0:602::6",
-      "kavlan-12": "2001:660:4406:2a0:602::6",
-      "kavlan-13": "2001:660:4406:4a0:602::6",
-      "kavlan-14": "2001:660:4406:5a0:602::6",
-      "kavlan-16": "2001:660:4406:7a0:602::6",
-      "kavlan-18": "2001:660:4406:8a0:602::6",
-      "kavlan-2": "2001:660:4406:681:2::6",
-      "kavlan-20": "2001:660:4406:3a0:602::6",
-      "kavlan-21": "2001:660:4406:6a0:602::6",
-      "kavlan-3": "2001:660:4406:682:2::6",
-      "kavlan-4": "2001:660:4406:690:2::6",
-      "kavlan-5": "2001:660:4406:691:2::6",
-      "kavlan-6": "2001:660:4406:692:2::6",
-      "kavlan-7": "2001:660:4406:693:2::6",
-      "kavlan-8": "2001:660:4406:694:2::6",
-      "kavlan-9": "2001:660:4406:695:2::6"
+      "kavlan-1": "2001:660:4406:680:2:0::6",
+      "kavlan-11": "2001:660:4406:1a0:602:0::6",
+      "kavlan-12": "2001:660:4406:2a0:602:0::6",
+      "kavlan-13": "2001:660:4406:4a0:602:0::6",
+      "kavlan-14": "2001:660:4406:5a0:602:0::6",
+      "kavlan-16": "2001:660:4406:7a0:602:0::6",
+      "kavlan-18": "2001:660:4406:8a0:602:0::6",
+      "kavlan-2": "2001:660:4406:681:2:0::6",
+      "kavlan-20": "2001:660:4406:3a0:602:0::6",
+      "kavlan-21": "2001:660:4406:6a0:602:0::6",
+      "kavlan-3": "2001:660:4406:682:2:0::6",
+      "kavlan-4": "2001:660:4406:690:2:0::6",
+      "kavlan-5": "2001:660:4406:691:2:0::6",
+      "kavlan-6": "2001:660:4406:692:2:0::6",
+      "kavlan-7": "2001:660:4406:693:2:0::6",
+      "kavlan-8": "2001:660:4406:694:2:0::6",
+      "kavlan-9": "2001:660:4406:695:2:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::6",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.6",
-      "ip6": "2001:660:4406:600:2::6",
+      "ip6": "2001:660:4406:600:2:0::6",
       "kavlan": true,
       "mac": "24:6e:96:6a:d6:b0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-7.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-7.json
index 91b716db374..49b2819014c 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-7.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-7.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::7",
-      "kavlan-11": "2001:660:4406:1a0:602::7",
-      "kavlan-12": "2001:660:4406:2a0:602::7",
-      "kavlan-13": "2001:660:4406:4a0:602::7",
-      "kavlan-14": "2001:660:4406:5a0:602::7",
-      "kavlan-16": "2001:660:4406:7a0:602::7",
-      "kavlan-18": "2001:660:4406:8a0:602::7",
-      "kavlan-2": "2001:660:4406:681:2::7",
-      "kavlan-20": "2001:660:4406:3a0:602::7",
-      "kavlan-21": "2001:660:4406:6a0:602::7",
-      "kavlan-3": "2001:660:4406:682:2::7",
-      "kavlan-4": "2001:660:4406:690:2::7",
-      "kavlan-5": "2001:660:4406:691:2::7",
-      "kavlan-6": "2001:660:4406:692:2::7",
-      "kavlan-7": "2001:660:4406:693:2::7",
-      "kavlan-8": "2001:660:4406:694:2::7",
-      "kavlan-9": "2001:660:4406:695:2::7"
+      "kavlan-1": "2001:660:4406:680:2:0::7",
+      "kavlan-11": "2001:660:4406:1a0:602:0::7",
+      "kavlan-12": "2001:660:4406:2a0:602:0::7",
+      "kavlan-13": "2001:660:4406:4a0:602:0::7",
+      "kavlan-14": "2001:660:4406:5a0:602:0::7",
+      "kavlan-16": "2001:660:4406:7a0:602:0::7",
+      "kavlan-18": "2001:660:4406:8a0:602:0::7",
+      "kavlan-2": "2001:660:4406:681:2:0::7",
+      "kavlan-20": "2001:660:4406:3a0:602:0::7",
+      "kavlan-21": "2001:660:4406:6a0:602:0::7",
+      "kavlan-3": "2001:660:4406:682:2:0::7",
+      "kavlan-4": "2001:660:4406:690:2:0::7",
+      "kavlan-5": "2001:660:4406:691:2:0::7",
+      "kavlan-6": "2001:660:4406:692:2:0::7",
+      "kavlan-7": "2001:660:4406:693:2:0::7",
+      "kavlan-8": "2001:660:4406:694:2:0::7",
+      "kavlan-9": "2001:660:4406:695:2:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::7",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.7",
-      "ip6": "2001:660:4406:600:2::7",
+      "ip6": "2001:660:4406:600:2:0::7",
       "kavlan": true,
       "mac": "24:6e:96:6a:4f:78",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-8.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-8.json
index 82bad83ed3e..25cb7283fe0 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-8.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-8.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::8",
-      "kavlan-11": "2001:660:4406:1a0:602::8",
-      "kavlan-12": "2001:660:4406:2a0:602::8",
-      "kavlan-13": "2001:660:4406:4a0:602::8",
-      "kavlan-14": "2001:660:4406:5a0:602::8",
-      "kavlan-16": "2001:660:4406:7a0:602::8",
-      "kavlan-18": "2001:660:4406:8a0:602::8",
-      "kavlan-2": "2001:660:4406:681:2::8",
-      "kavlan-20": "2001:660:4406:3a0:602::8",
-      "kavlan-21": "2001:660:4406:6a0:602::8",
-      "kavlan-3": "2001:660:4406:682:2::8",
-      "kavlan-4": "2001:660:4406:690:2::8",
-      "kavlan-5": "2001:660:4406:691:2::8",
-      "kavlan-6": "2001:660:4406:692:2::8",
-      "kavlan-7": "2001:660:4406:693:2::8",
-      "kavlan-8": "2001:660:4406:694:2::8",
-      "kavlan-9": "2001:660:4406:695:2::8"
+      "kavlan-1": "2001:660:4406:680:2:0::8",
+      "kavlan-11": "2001:660:4406:1a0:602:0::8",
+      "kavlan-12": "2001:660:4406:2a0:602:0::8",
+      "kavlan-13": "2001:660:4406:4a0:602:0::8",
+      "kavlan-14": "2001:660:4406:5a0:602:0::8",
+      "kavlan-16": "2001:660:4406:7a0:602:0::8",
+      "kavlan-18": "2001:660:4406:8a0:602:0::8",
+      "kavlan-2": "2001:660:4406:681:2:0::8",
+      "kavlan-20": "2001:660:4406:3a0:602:0::8",
+      "kavlan-21": "2001:660:4406:6a0:602:0::8",
+      "kavlan-3": "2001:660:4406:682:2:0::8",
+      "kavlan-4": "2001:660:4406:690:2:0::8",
+      "kavlan-5": "2001:660:4406:691:2:0::8",
+      "kavlan-6": "2001:660:4406:692:2:0::8",
+      "kavlan-7": "2001:660:4406:693:2:0::8",
+      "kavlan-8": "2001:660:4406:694:2:0::8",
+      "kavlan-9": "2001:660:4406:695:2:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::8",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.8",
-      "ip6": "2001:660:4406:600:2::8",
+      "ip6": "2001:660:4406:600:2:0::8",
       "kavlan": true,
       "mac": "24:6e:96:6a:c9:d0",
       "management": false,
diff --git a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-9.json b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-9.json
index 0193f214abe..8d12ab47e19 100644
--- a/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-9.json
+++ b/data/grid5000/sites/nantes/clusters/ecotype/nodes/ecotype-9.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:680:2::9",
-      "kavlan-11": "2001:660:4406:1a0:602::9",
-      "kavlan-12": "2001:660:4406:2a0:602::9",
-      "kavlan-13": "2001:660:4406:4a0:602::9",
-      "kavlan-14": "2001:660:4406:5a0:602::9",
-      "kavlan-16": "2001:660:4406:7a0:602::9",
-      "kavlan-18": "2001:660:4406:8a0:602::9",
-      "kavlan-2": "2001:660:4406:681:2::9",
-      "kavlan-20": "2001:660:4406:3a0:602::9",
-      "kavlan-21": "2001:660:4406:6a0:602::9",
-      "kavlan-3": "2001:660:4406:682:2::9",
-      "kavlan-4": "2001:660:4406:690:2::9",
-      "kavlan-5": "2001:660:4406:691:2::9",
-      "kavlan-6": "2001:660:4406:692:2::9",
-      "kavlan-7": "2001:660:4406:693:2::9",
-      "kavlan-8": "2001:660:4406:694:2::9",
-      "kavlan-9": "2001:660:4406:695:2::9"
+      "kavlan-1": "2001:660:4406:680:2:0::9",
+      "kavlan-11": "2001:660:4406:1a0:602:0::9",
+      "kavlan-12": "2001:660:4406:2a0:602:0::9",
+      "kavlan-13": "2001:660:4406:4a0:602:0::9",
+      "kavlan-14": "2001:660:4406:5a0:602:0::9",
+      "kavlan-16": "2001:660:4406:7a0:602:0::9",
+      "kavlan-18": "2001:660:4406:8a0:602:0::9",
+      "kavlan-2": "2001:660:4406:681:2:0::9",
+      "kavlan-20": "2001:660:4406:3a0:602:0::9",
+      "kavlan-21": "2001:660:4406:6a0:602:0::9",
+      "kavlan-3": "2001:660:4406:682:2:0::9",
+      "kavlan-4": "2001:660:4406:690:2:0::9",
+      "kavlan-5": "2001:660:4406:691:2:0::9",
+      "kavlan-6": "2001:660:4406:692:2:0::9",
+      "kavlan-7": "2001:660:4406:693:2:0::9",
+      "kavlan-8": "2001:660:4406:694:2:0::9",
+      "kavlan-9": "2001:660:4406:695:2:0::9"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:680:2:1::9",
@@ -112,7 +112,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.193.9",
-      "ip6": "2001:660:4406:600:2::9",
+      "ip6": "2001:660:4406:600:2:0::9",
       "kavlan": true,
       "mac": "24:6e:96:6a:d7:00",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-1.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-1.json
index 5bb2c24ba2c..ed9ed2fb7e7 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-1.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-1.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5::1",
-      "kavlan-11": "2001:660:4406:1a0:705::1",
-      "kavlan-12": "2001:660:4406:2a0:705::1",
-      "kavlan-13": "2001:660:4406:4a0:705::1",
-      "kavlan-14": "2001:660:4406:5a0:705::1",
-      "kavlan-16": "2001:660:4406:7a0:705::1",
-      "kavlan-18": "2001:660:4406:8a0:705::1",
-      "kavlan-2": "2001:660:4406:781:5::1",
-      "kavlan-20": "2001:660:4406:3a0:705::1",
-      "kavlan-21": "2001:660:4406:6a0:705::1",
-      "kavlan-3": "2001:660:4406:782:5::1",
-      "kavlan-4": "2001:660:4406:790:5::1",
-      "kavlan-5": "2001:660:4406:791:5::1",
-      "kavlan-6": "2001:660:4406:792:5::1",
-      "kavlan-7": "2001:660:4406:793:5::1",
-      "kavlan-8": "2001:660:4406:794:5::1",
-      "kavlan-9": "2001:660:4406:795:5::1"
+      "kavlan-1": "2001:660:4406:780:5:0::1",
+      "kavlan-11": "2001:660:4406:1a0:705:0::1",
+      "kavlan-12": "2001:660:4406:2a0:705:0::1",
+      "kavlan-13": "2001:660:4406:4a0:705:0::1",
+      "kavlan-14": "2001:660:4406:5a0:705:0::1",
+      "kavlan-16": "2001:660:4406:7a0:705:0::1",
+      "kavlan-18": "2001:660:4406:8a0:705:0::1",
+      "kavlan-2": "2001:660:4406:781:5:0::1",
+      "kavlan-20": "2001:660:4406:3a0:705:0::1",
+      "kavlan-21": "2001:660:4406:6a0:705:0::1",
+      "kavlan-3": "2001:660:4406:782:5:0::1",
+      "kavlan-4": "2001:660:4406:790:5:0::1",
+      "kavlan-5": "2001:660:4406:791:5:0::1",
+      "kavlan-6": "2001:660:4406:792:5:0::1",
+      "kavlan-7": "2001:660:4406:793:5:0::1",
+      "kavlan-8": "2001:660:4406:794:5:0::1",
+      "kavlan-9": "2001:660:4406:795:5:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:5:1::1",
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.1",
-      "ip6": "2001:660:4406:700:5::1",
+      "ip6": "2001:660:4406:700:5:0::1",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:d0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-2.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-2.json
index 6f6b15dc9e2..d4c31d173c8 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-2.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-2.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5::2",
-      "kavlan-11": "2001:660:4406:1a0:705::2",
-      "kavlan-12": "2001:660:4406:2a0:705::2",
-      "kavlan-13": "2001:660:4406:4a0:705::2",
-      "kavlan-14": "2001:660:4406:5a0:705::2",
-      "kavlan-16": "2001:660:4406:7a0:705::2",
-      "kavlan-18": "2001:660:4406:8a0:705::2",
-      "kavlan-2": "2001:660:4406:781:5::2",
-      "kavlan-20": "2001:660:4406:3a0:705::2",
-      "kavlan-21": "2001:660:4406:6a0:705::2",
-      "kavlan-3": "2001:660:4406:782:5::2",
-      "kavlan-4": "2001:660:4406:790:5::2",
-      "kavlan-5": "2001:660:4406:791:5::2",
-      "kavlan-6": "2001:660:4406:792:5::2",
-      "kavlan-7": "2001:660:4406:793:5::2",
-      "kavlan-8": "2001:660:4406:794:5::2",
-      "kavlan-9": "2001:660:4406:795:5::2"
+      "kavlan-1": "2001:660:4406:780:5:0::2",
+      "kavlan-11": "2001:660:4406:1a0:705:0::2",
+      "kavlan-12": "2001:660:4406:2a0:705:0::2",
+      "kavlan-13": "2001:660:4406:4a0:705:0::2",
+      "kavlan-14": "2001:660:4406:5a0:705:0::2",
+      "kavlan-16": "2001:660:4406:7a0:705:0::2",
+      "kavlan-18": "2001:660:4406:8a0:705:0::2",
+      "kavlan-2": "2001:660:4406:781:5:0::2",
+      "kavlan-20": "2001:660:4406:3a0:705:0::2",
+      "kavlan-21": "2001:660:4406:6a0:705:0::2",
+      "kavlan-3": "2001:660:4406:782:5:0::2",
+      "kavlan-4": "2001:660:4406:790:5:0::2",
+      "kavlan-5": "2001:660:4406:791:5:0::2",
+      "kavlan-6": "2001:660:4406:792:5:0::2",
+      "kavlan-7": "2001:660:4406:793:5:0::2",
+      "kavlan-8": "2001:660:4406:794:5:0::2",
+      "kavlan-9": "2001:660:4406:795:5:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:5:1::2",
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.2",
-      "ip6": "2001:660:4406:700:5::2",
+      "ip6": "2001:660:4406:700:5:0::2",
       "kavlan": true,
       "mac": "a0:36:9f:28:a8:80",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-3.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-3.json
index e3e7075d559..74e0cd03e9a 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-3.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-3.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5::3",
-      "kavlan-11": "2001:660:4406:1a0:705::3",
-      "kavlan-12": "2001:660:4406:2a0:705::3",
-      "kavlan-13": "2001:660:4406:4a0:705::3",
-      "kavlan-14": "2001:660:4406:5a0:705::3",
-      "kavlan-16": "2001:660:4406:7a0:705::3",
-      "kavlan-18": "2001:660:4406:8a0:705::3",
-      "kavlan-2": "2001:660:4406:781:5::3",
-      "kavlan-20": "2001:660:4406:3a0:705::3",
-      "kavlan-21": "2001:660:4406:6a0:705::3",
-      "kavlan-3": "2001:660:4406:782:5::3",
-      "kavlan-4": "2001:660:4406:790:5::3",
-      "kavlan-5": "2001:660:4406:791:5::3",
-      "kavlan-6": "2001:660:4406:792:5::3",
-      "kavlan-7": "2001:660:4406:793:5::3",
-      "kavlan-8": "2001:660:4406:794:5::3",
-      "kavlan-9": "2001:660:4406:795:5::3"
+      "kavlan-1": "2001:660:4406:780:5:0::3",
+      "kavlan-11": "2001:660:4406:1a0:705:0::3",
+      "kavlan-12": "2001:660:4406:2a0:705:0::3",
+      "kavlan-13": "2001:660:4406:4a0:705:0::3",
+      "kavlan-14": "2001:660:4406:5a0:705:0::3",
+      "kavlan-16": "2001:660:4406:7a0:705:0::3",
+      "kavlan-18": "2001:660:4406:8a0:705:0::3",
+      "kavlan-2": "2001:660:4406:781:5:0::3",
+      "kavlan-20": "2001:660:4406:3a0:705:0::3",
+      "kavlan-21": "2001:660:4406:6a0:705:0::3",
+      "kavlan-3": "2001:660:4406:782:5:0::3",
+      "kavlan-4": "2001:660:4406:790:5:0::3",
+      "kavlan-5": "2001:660:4406:791:5:0::3",
+      "kavlan-6": "2001:660:4406:792:5:0::3",
+      "kavlan-7": "2001:660:4406:793:5:0::3",
+      "kavlan-8": "2001:660:4406:794:5:0::3",
+      "kavlan-9": "2001:660:4406:795:5:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:5:1::3",
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.3",
-      "ip6": "2001:660:4406:700:5::3",
+      "ip6": "2001:660:4406:700:5:0::3",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:d4",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-4.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-4.json
index 8c72bfec5ff..555506f1680 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-4.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-4.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5::4",
-      "kavlan-11": "2001:660:4406:1a0:705::4",
-      "kavlan-12": "2001:660:4406:2a0:705::4",
-      "kavlan-13": "2001:660:4406:4a0:705::4",
-      "kavlan-14": "2001:660:4406:5a0:705::4",
-      "kavlan-16": "2001:660:4406:7a0:705::4",
-      "kavlan-18": "2001:660:4406:8a0:705::4",
-      "kavlan-2": "2001:660:4406:781:5::4",
-      "kavlan-20": "2001:660:4406:3a0:705::4",
-      "kavlan-21": "2001:660:4406:6a0:705::4",
-      "kavlan-3": "2001:660:4406:782:5::4",
-      "kavlan-4": "2001:660:4406:790:5::4",
-      "kavlan-5": "2001:660:4406:791:5::4",
-      "kavlan-6": "2001:660:4406:792:5::4",
-      "kavlan-7": "2001:660:4406:793:5::4",
-      "kavlan-8": "2001:660:4406:794:5::4",
-      "kavlan-9": "2001:660:4406:795:5::4"
+      "kavlan-1": "2001:660:4406:780:5:0::4",
+      "kavlan-11": "2001:660:4406:1a0:705:0::4",
+      "kavlan-12": "2001:660:4406:2a0:705:0::4",
+      "kavlan-13": "2001:660:4406:4a0:705:0::4",
+      "kavlan-14": "2001:660:4406:5a0:705:0::4",
+      "kavlan-16": "2001:660:4406:7a0:705:0::4",
+      "kavlan-18": "2001:660:4406:8a0:705:0::4",
+      "kavlan-2": "2001:660:4406:781:5:0::4",
+      "kavlan-20": "2001:660:4406:3a0:705:0::4",
+      "kavlan-21": "2001:660:4406:6a0:705:0::4",
+      "kavlan-3": "2001:660:4406:782:5:0::4",
+      "kavlan-4": "2001:660:4406:790:5:0::4",
+      "kavlan-5": "2001:660:4406:791:5:0::4",
+      "kavlan-6": "2001:660:4406:792:5:0::4",
+      "kavlan-7": "2001:660:4406:793:5:0::4",
+      "kavlan-8": "2001:660:4406:794:5:0::4",
+      "kavlan-9": "2001:660:4406:795:5:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:5:1::4",
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.4",
-      "ip6": "2001:660:4406:700:5::4",
+      "ip6": "2001:660:4406:700:5:0::4",
       "kavlan": true,
       "mac": "a0:36:9f:28:a6:b0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-5.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-5.json
index a2fd5fe3ae3..3315850f695 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-5.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-5.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5::5",
-      "kavlan-11": "2001:660:4406:1a0:705::5",
-      "kavlan-12": "2001:660:4406:2a0:705::5",
-      "kavlan-13": "2001:660:4406:4a0:705::5",
-      "kavlan-14": "2001:660:4406:5a0:705::5",
-      "kavlan-16": "2001:660:4406:7a0:705::5",
-      "kavlan-18": "2001:660:4406:8a0:705::5",
-      "kavlan-2": "2001:660:4406:781:5::5",
-      "kavlan-20": "2001:660:4406:3a0:705::5",
-      "kavlan-21": "2001:660:4406:6a0:705::5",
-      "kavlan-3": "2001:660:4406:782:5::5",
-      "kavlan-4": "2001:660:4406:790:5::5",
-      "kavlan-5": "2001:660:4406:791:5::5",
-      "kavlan-6": "2001:660:4406:792:5::5",
-      "kavlan-7": "2001:660:4406:793:5::5",
-      "kavlan-8": "2001:660:4406:794:5::5",
-      "kavlan-9": "2001:660:4406:795:5::5"
+      "kavlan-1": "2001:660:4406:780:5:0::5",
+      "kavlan-11": "2001:660:4406:1a0:705:0::5",
+      "kavlan-12": "2001:660:4406:2a0:705:0::5",
+      "kavlan-13": "2001:660:4406:4a0:705:0::5",
+      "kavlan-14": "2001:660:4406:5a0:705:0::5",
+      "kavlan-16": "2001:660:4406:7a0:705:0::5",
+      "kavlan-18": "2001:660:4406:8a0:705:0::5",
+      "kavlan-2": "2001:660:4406:781:5:0::5",
+      "kavlan-20": "2001:660:4406:3a0:705:0::5",
+      "kavlan-21": "2001:660:4406:6a0:705:0::5",
+      "kavlan-3": "2001:660:4406:782:5:0::5",
+      "kavlan-4": "2001:660:4406:790:5:0::5",
+      "kavlan-5": "2001:660:4406:791:5:0::5",
+      "kavlan-6": "2001:660:4406:792:5:0::5",
+      "kavlan-7": "2001:660:4406:793:5:0::5",
+      "kavlan-8": "2001:660:4406:794:5:0::5",
+      "kavlan-9": "2001:660:4406:795:5:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:5:1::5",
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.5",
-      "ip6": "2001:660:4406:700:5::5",
+      "ip6": "2001:660:4406:700:5:0::5",
       "kavlan": true,
       "mac": "a0:36:9f:28:a7:b8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-6.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-6.json
index 82e4e55a7e8..a82d870283c 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-6.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-6.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5::6",
-      "kavlan-11": "2001:660:4406:1a0:705::6",
-      "kavlan-12": "2001:660:4406:2a0:705::6",
-      "kavlan-13": "2001:660:4406:4a0:705::6",
-      "kavlan-14": "2001:660:4406:5a0:705::6",
-      "kavlan-16": "2001:660:4406:7a0:705::6",
-      "kavlan-18": "2001:660:4406:8a0:705::6",
-      "kavlan-2": "2001:660:4406:781:5::6",
-      "kavlan-20": "2001:660:4406:3a0:705::6",
-      "kavlan-21": "2001:660:4406:6a0:705::6",
-      "kavlan-3": "2001:660:4406:782:5::6",
-      "kavlan-4": "2001:660:4406:790:5::6",
-      "kavlan-5": "2001:660:4406:791:5::6",
-      "kavlan-6": "2001:660:4406:792:5::6",
-      "kavlan-7": "2001:660:4406:793:5::6",
-      "kavlan-8": "2001:660:4406:794:5::6",
-      "kavlan-9": "2001:660:4406:795:5::6"
+      "kavlan-1": "2001:660:4406:780:5:0::6",
+      "kavlan-11": "2001:660:4406:1a0:705:0::6",
+      "kavlan-12": "2001:660:4406:2a0:705:0::6",
+      "kavlan-13": "2001:660:4406:4a0:705:0::6",
+      "kavlan-14": "2001:660:4406:5a0:705:0::6",
+      "kavlan-16": "2001:660:4406:7a0:705:0::6",
+      "kavlan-18": "2001:660:4406:8a0:705:0::6",
+      "kavlan-2": "2001:660:4406:781:5:0::6",
+      "kavlan-20": "2001:660:4406:3a0:705:0::6",
+      "kavlan-21": "2001:660:4406:6a0:705:0::6",
+      "kavlan-3": "2001:660:4406:782:5:0::6",
+      "kavlan-4": "2001:660:4406:790:5:0::6",
+      "kavlan-5": "2001:660:4406:791:5:0::6",
+      "kavlan-6": "2001:660:4406:792:5:0::6",
+      "kavlan-7": "2001:660:4406:793:5:0::6",
+      "kavlan-8": "2001:660:4406:794:5:0::6",
+      "kavlan-9": "2001:660:4406:795:5:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:5:1::6",
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.6",
-      "ip6": "2001:660:4406:700:5::6",
+      "ip6": "2001:660:4406:700:5:0::6",
       "kavlan": true,
       "mac": "a0:36:9f:28:a7:b4",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-7.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-7.json
index 9c5c05256e8..e348dba2ae5 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-7.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-7.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5::7",
-      "kavlan-11": "2001:660:4406:1a0:705::7",
-      "kavlan-12": "2001:660:4406:2a0:705::7",
-      "kavlan-13": "2001:660:4406:4a0:705::7",
-      "kavlan-14": "2001:660:4406:5a0:705::7",
-      "kavlan-16": "2001:660:4406:7a0:705::7",
-      "kavlan-18": "2001:660:4406:8a0:705::7",
-      "kavlan-2": "2001:660:4406:781:5::7",
-      "kavlan-20": "2001:660:4406:3a0:705::7",
-      "kavlan-21": "2001:660:4406:6a0:705::7",
-      "kavlan-3": "2001:660:4406:782:5::7",
-      "kavlan-4": "2001:660:4406:790:5::7",
-      "kavlan-5": "2001:660:4406:791:5::7",
-      "kavlan-6": "2001:660:4406:792:5::7",
-      "kavlan-7": "2001:660:4406:793:5::7",
-      "kavlan-8": "2001:660:4406:794:5::7",
-      "kavlan-9": "2001:660:4406:795:5::7"
+      "kavlan-1": "2001:660:4406:780:5:0::7",
+      "kavlan-11": "2001:660:4406:1a0:705:0::7",
+      "kavlan-12": "2001:660:4406:2a0:705:0::7",
+      "kavlan-13": "2001:660:4406:4a0:705:0::7",
+      "kavlan-14": "2001:660:4406:5a0:705:0::7",
+      "kavlan-16": "2001:660:4406:7a0:705:0::7",
+      "kavlan-18": "2001:660:4406:8a0:705:0::7",
+      "kavlan-2": "2001:660:4406:781:5:0::7",
+      "kavlan-20": "2001:660:4406:3a0:705:0::7",
+      "kavlan-21": "2001:660:4406:6a0:705:0::7",
+      "kavlan-3": "2001:660:4406:782:5:0::7",
+      "kavlan-4": "2001:660:4406:790:5:0::7",
+      "kavlan-5": "2001:660:4406:791:5:0::7",
+      "kavlan-6": "2001:660:4406:792:5:0::7",
+      "kavlan-7": "2001:660:4406:793:5:0::7",
+      "kavlan-8": "2001:660:4406:794:5:0::7",
+      "kavlan-9": "2001:660:4406:795:5:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:5:1::7",
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.7",
-      "ip6": "2001:660:4406:700:5::7",
+      "ip6": "2001:660:4406:700:5:0::7",
       "kavlan": true,
       "mac": "a0:36:9f:28:a9:14",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-8.json b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-8.json
index ad6029c8a84..8b0eca657a1 100644
--- a/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-8.json
+++ b/data/grid5000/sites/rennes/clusters/paranoia/nodes/paranoia-8.json
@@ -79,23 +79,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:5::8",
-      "kavlan-11": "2001:660:4406:1a0:705::8",
-      "kavlan-12": "2001:660:4406:2a0:705::8",
-      "kavlan-13": "2001:660:4406:4a0:705::8",
-      "kavlan-14": "2001:660:4406:5a0:705::8",
-      "kavlan-16": "2001:660:4406:7a0:705::8",
-      "kavlan-18": "2001:660:4406:8a0:705::8",
-      "kavlan-2": "2001:660:4406:781:5::8",
-      "kavlan-20": "2001:660:4406:3a0:705::8",
-      "kavlan-21": "2001:660:4406:6a0:705::8",
-      "kavlan-3": "2001:660:4406:782:5::8",
-      "kavlan-4": "2001:660:4406:790:5::8",
-      "kavlan-5": "2001:660:4406:791:5::8",
-      "kavlan-6": "2001:660:4406:792:5::8",
-      "kavlan-7": "2001:660:4406:793:5::8",
-      "kavlan-8": "2001:660:4406:794:5::8",
-      "kavlan-9": "2001:660:4406:795:5::8"
+      "kavlan-1": "2001:660:4406:780:5:0::8",
+      "kavlan-11": "2001:660:4406:1a0:705:0::8",
+      "kavlan-12": "2001:660:4406:2a0:705:0::8",
+      "kavlan-13": "2001:660:4406:4a0:705:0::8",
+      "kavlan-14": "2001:660:4406:5a0:705:0::8",
+      "kavlan-16": "2001:660:4406:7a0:705:0::8",
+      "kavlan-18": "2001:660:4406:8a0:705:0::8",
+      "kavlan-2": "2001:660:4406:781:5:0::8",
+      "kavlan-20": "2001:660:4406:3a0:705:0::8",
+      "kavlan-21": "2001:660:4406:6a0:705:0::8",
+      "kavlan-3": "2001:660:4406:782:5:0::8",
+      "kavlan-4": "2001:660:4406:790:5:0::8",
+      "kavlan-5": "2001:660:4406:791:5:0::8",
+      "kavlan-6": "2001:660:4406:792:5:0::8",
+      "kavlan-7": "2001:660:4406:793:5:0::8",
+      "kavlan-8": "2001:660:4406:794:5:0::8",
+      "kavlan-9": "2001:660:4406:795:5:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:5:1::8",
@@ -151,7 +151,7 @@
       "firmware_version": "0x800004e1",
       "interface": "Ethernet",
       "ip": "172.16.100.8",
-      "ip6": "2001:660:4406:700:5::8",
+      "ip6": "2001:660:4406:700:5:0::8",
       "kavlan": true,
       "mac": "a0:36:9f:28:a9:18",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-1.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-1.json
index c2da786bc42..cef8fbc0911 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-1.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::1",
-      "kavlan-11": "2001:660:4406:1a0:703::1",
-      "kavlan-12": "2001:660:4406:2a0:703::1",
-      "kavlan-13": "2001:660:4406:4a0:703::1",
-      "kavlan-14": "2001:660:4406:5a0:703::1",
-      "kavlan-16": "2001:660:4406:7a0:703::1",
-      "kavlan-18": "2001:660:4406:8a0:703::1",
-      "kavlan-2": "2001:660:4406:781:3::1",
-      "kavlan-20": "2001:660:4406:3a0:703::1",
-      "kavlan-21": "2001:660:4406:6a0:703::1",
-      "kavlan-3": "2001:660:4406:782:3::1",
-      "kavlan-4": "2001:660:4406:790:3::1",
-      "kavlan-5": "2001:660:4406:791:3::1",
-      "kavlan-6": "2001:660:4406:792:3::1",
-      "kavlan-7": "2001:660:4406:793:3::1",
-      "kavlan-8": "2001:660:4406:794:3::1",
-      "kavlan-9": "2001:660:4406:795:3::1"
+      "kavlan-1": "2001:660:4406:780:3:0::1",
+      "kavlan-11": "2001:660:4406:1a0:703:0::1",
+      "kavlan-12": "2001:660:4406:2a0:703:0::1",
+      "kavlan-13": "2001:660:4406:4a0:703:0::1",
+      "kavlan-14": "2001:660:4406:5a0:703:0::1",
+      "kavlan-16": "2001:660:4406:7a0:703:0::1",
+      "kavlan-18": "2001:660:4406:8a0:703:0::1",
+      "kavlan-2": "2001:660:4406:781:3:0::1",
+      "kavlan-20": "2001:660:4406:3a0:703:0::1",
+      "kavlan-21": "2001:660:4406:6a0:703:0::1",
+      "kavlan-3": "2001:660:4406:782:3:0::1",
+      "kavlan-4": "2001:660:4406:790:3:0::1",
+      "kavlan-5": "2001:660:4406:791:3:0::1",
+      "kavlan-6": "2001:660:4406:792:3:0::1",
+      "kavlan-7": "2001:660:4406:793:3:0::1",
+      "kavlan-8": "2001:660:4406:794:3:0::1",
+      "kavlan-9": "2001:660:4406:795:3:0::1"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.1",
-      "ip6": "2001:660:4406:700:3::1",
+      "ip6": "2001:660:4406:700:3:0::1",
       "kavlan": true,
       "mac": "00:14:4f:ca:97:0c",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-10.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-10.json
index 21b8a81b20d..f9caddc25e6 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-10.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::a",
-      "kavlan-11": "2001:660:4406:1a0:703::a",
-      "kavlan-12": "2001:660:4406:2a0:703::a",
-      "kavlan-13": "2001:660:4406:4a0:703::a",
-      "kavlan-14": "2001:660:4406:5a0:703::a",
-      "kavlan-16": "2001:660:4406:7a0:703::a",
-      "kavlan-18": "2001:660:4406:8a0:703::a",
-      "kavlan-2": "2001:660:4406:781:3::a",
-      "kavlan-20": "2001:660:4406:3a0:703::a",
-      "kavlan-21": "2001:660:4406:6a0:703::a",
-      "kavlan-3": "2001:660:4406:782:3::a",
-      "kavlan-4": "2001:660:4406:790:3::a",
-      "kavlan-5": "2001:660:4406:791:3::a",
-      "kavlan-6": "2001:660:4406:792:3::a",
-      "kavlan-7": "2001:660:4406:793:3::a",
-      "kavlan-8": "2001:660:4406:794:3::a",
-      "kavlan-9": "2001:660:4406:795:3::a"
+      "kavlan-1": "2001:660:4406:780:3:0::a",
+      "kavlan-11": "2001:660:4406:1a0:703:0::a",
+      "kavlan-12": "2001:660:4406:2a0:703:0::a",
+      "kavlan-13": "2001:660:4406:4a0:703:0::a",
+      "kavlan-14": "2001:660:4406:5a0:703:0::a",
+      "kavlan-16": "2001:660:4406:7a0:703:0::a",
+      "kavlan-18": "2001:660:4406:8a0:703:0::a",
+      "kavlan-2": "2001:660:4406:781:3:0::a",
+      "kavlan-20": "2001:660:4406:3a0:703:0::a",
+      "kavlan-21": "2001:660:4406:6a0:703:0::a",
+      "kavlan-3": "2001:660:4406:782:3:0::a",
+      "kavlan-4": "2001:660:4406:790:3:0::a",
+      "kavlan-5": "2001:660:4406:791:3:0::a",
+      "kavlan-6": "2001:660:4406:792:3:0::a",
+      "kavlan-7": "2001:660:4406:793:3:0::a",
+      "kavlan-8": "2001:660:4406:794:3:0::a",
+      "kavlan-9": "2001:660:4406:795:3:0::a"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.10",
-      "ip6": "2001:660:4406:700:3::a",
+      "ip6": "2001:660:4406:700:3:0::a",
       "kavlan": true,
       "mac": "00:14:4f:ca:98:4c",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-12.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-12.json
index e74da5f1449..b5ef13d97ea 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-12.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::c",
-      "kavlan-11": "2001:660:4406:1a0:703::c",
-      "kavlan-12": "2001:660:4406:2a0:703::c",
-      "kavlan-13": "2001:660:4406:4a0:703::c",
-      "kavlan-14": "2001:660:4406:5a0:703::c",
-      "kavlan-16": "2001:660:4406:7a0:703::c",
-      "kavlan-18": "2001:660:4406:8a0:703::c",
-      "kavlan-2": "2001:660:4406:781:3::c",
-      "kavlan-20": "2001:660:4406:3a0:703::c",
-      "kavlan-21": "2001:660:4406:6a0:703::c",
-      "kavlan-3": "2001:660:4406:782:3::c",
-      "kavlan-4": "2001:660:4406:790:3::c",
-      "kavlan-5": "2001:660:4406:791:3::c",
-      "kavlan-6": "2001:660:4406:792:3::c",
-      "kavlan-7": "2001:660:4406:793:3::c",
-      "kavlan-8": "2001:660:4406:794:3::c",
-      "kavlan-9": "2001:660:4406:795:3::c"
+      "kavlan-1": "2001:660:4406:780:3:0::c",
+      "kavlan-11": "2001:660:4406:1a0:703:0::c",
+      "kavlan-12": "2001:660:4406:2a0:703:0::c",
+      "kavlan-13": "2001:660:4406:4a0:703:0::c",
+      "kavlan-14": "2001:660:4406:5a0:703:0::c",
+      "kavlan-16": "2001:660:4406:7a0:703:0::c",
+      "kavlan-18": "2001:660:4406:8a0:703:0::c",
+      "kavlan-2": "2001:660:4406:781:3:0::c",
+      "kavlan-20": "2001:660:4406:3a0:703:0::c",
+      "kavlan-21": "2001:660:4406:6a0:703:0::c",
+      "kavlan-3": "2001:660:4406:782:3:0::c",
+      "kavlan-4": "2001:660:4406:790:3:0::c",
+      "kavlan-5": "2001:660:4406:791:3:0::c",
+      "kavlan-6": "2001:660:4406:792:3:0::c",
+      "kavlan-7": "2001:660:4406:793:3:0::c",
+      "kavlan-8": "2001:660:4406:794:3:0::c",
+      "kavlan-9": "2001:660:4406:795:3:0::c"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.12",
-      "ip6": "2001:660:4406:700:3::c",
+      "ip6": "2001:660:4406:700:3:0::c",
       "kavlan": true,
       "mac": "00:14:4f:ca:99:24",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-13.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-13.json
index b1170fbb683..873d20ae4c9 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-13.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-13.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::d",
-      "kavlan-11": "2001:660:4406:1a0:703::d",
-      "kavlan-12": "2001:660:4406:2a0:703::d",
-      "kavlan-13": "2001:660:4406:4a0:703::d",
-      "kavlan-14": "2001:660:4406:5a0:703::d",
-      "kavlan-16": "2001:660:4406:7a0:703::d",
-      "kavlan-18": "2001:660:4406:8a0:703::d",
-      "kavlan-2": "2001:660:4406:781:3::d",
-      "kavlan-20": "2001:660:4406:3a0:703::d",
-      "kavlan-21": "2001:660:4406:6a0:703::d",
-      "kavlan-3": "2001:660:4406:782:3::d",
-      "kavlan-4": "2001:660:4406:790:3::d",
-      "kavlan-5": "2001:660:4406:791:3::d",
-      "kavlan-6": "2001:660:4406:792:3::d",
-      "kavlan-7": "2001:660:4406:793:3::d",
-      "kavlan-8": "2001:660:4406:794:3::d",
-      "kavlan-9": "2001:660:4406:795:3::d"
+      "kavlan-1": "2001:660:4406:780:3:0::d",
+      "kavlan-11": "2001:660:4406:1a0:703:0::d",
+      "kavlan-12": "2001:660:4406:2a0:703:0::d",
+      "kavlan-13": "2001:660:4406:4a0:703:0::d",
+      "kavlan-14": "2001:660:4406:5a0:703:0::d",
+      "kavlan-16": "2001:660:4406:7a0:703:0::d",
+      "kavlan-18": "2001:660:4406:8a0:703:0::d",
+      "kavlan-2": "2001:660:4406:781:3:0::d",
+      "kavlan-20": "2001:660:4406:3a0:703:0::d",
+      "kavlan-21": "2001:660:4406:6a0:703:0::d",
+      "kavlan-3": "2001:660:4406:782:3:0::d",
+      "kavlan-4": "2001:660:4406:790:3:0::d",
+      "kavlan-5": "2001:660:4406:791:3:0::d",
+      "kavlan-6": "2001:660:4406:792:3:0::d",
+      "kavlan-7": "2001:660:4406:793:3:0::d",
+      "kavlan-8": "2001:660:4406:794:3:0::d",
+      "kavlan-9": "2001:660:4406:795:3:0::d"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.13",
-      "ip6": "2001:660:4406:700:3::d",
+      "ip6": "2001:660:4406:700:3:0::d",
       "kavlan": true,
       "mac": "00:14:4f:ca:9a:80",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-16.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-16.json
index 653b5e1e3c8..7cd02efce1c 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-16.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::10",
-      "kavlan-11": "2001:660:4406:1a0:703::10",
-      "kavlan-12": "2001:660:4406:2a0:703::10",
-      "kavlan-13": "2001:660:4406:4a0:703::10",
-      "kavlan-14": "2001:660:4406:5a0:703::10",
-      "kavlan-16": "2001:660:4406:7a0:703::10",
-      "kavlan-18": "2001:660:4406:8a0:703::10",
-      "kavlan-2": "2001:660:4406:781:3::10",
-      "kavlan-20": "2001:660:4406:3a0:703::10",
-      "kavlan-21": "2001:660:4406:6a0:703::10",
-      "kavlan-3": "2001:660:4406:782:3::10",
-      "kavlan-4": "2001:660:4406:790:3::10",
-      "kavlan-5": "2001:660:4406:791:3::10",
-      "kavlan-6": "2001:660:4406:792:3::10",
-      "kavlan-7": "2001:660:4406:793:3::10",
-      "kavlan-8": "2001:660:4406:794:3::10",
-      "kavlan-9": "2001:660:4406:795:3::10"
+      "kavlan-1": "2001:660:4406:780:3:0::10",
+      "kavlan-11": "2001:660:4406:1a0:703:0::10",
+      "kavlan-12": "2001:660:4406:2a0:703:0::10",
+      "kavlan-13": "2001:660:4406:4a0:703:0::10",
+      "kavlan-14": "2001:660:4406:5a0:703:0::10",
+      "kavlan-16": "2001:660:4406:7a0:703:0::10",
+      "kavlan-18": "2001:660:4406:8a0:703:0::10",
+      "kavlan-2": "2001:660:4406:781:3:0::10",
+      "kavlan-20": "2001:660:4406:3a0:703:0::10",
+      "kavlan-21": "2001:660:4406:6a0:703:0::10",
+      "kavlan-3": "2001:660:4406:782:3:0::10",
+      "kavlan-4": "2001:660:4406:790:3:0::10",
+      "kavlan-5": "2001:660:4406:791:3:0::10",
+      "kavlan-6": "2001:660:4406:792:3:0::10",
+      "kavlan-7": "2001:660:4406:793:3:0::10",
+      "kavlan-8": "2001:660:4406:794:3:0::10",
+      "kavlan-9": "2001:660:4406:795:3:0::10"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.16",
-      "ip6": "2001:660:4406:700:3::10",
+      "ip6": "2001:660:4406:700:3:0::10",
       "kavlan": true,
       "mac": "00:14:4f:ca:94:b4",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-18.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-18.json
index 88b27c6d8c0..a9e2c10dbdd 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-18.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::12",
-      "kavlan-11": "2001:660:4406:1a0:703::12",
-      "kavlan-12": "2001:660:4406:2a0:703::12",
-      "kavlan-13": "2001:660:4406:4a0:703::12",
-      "kavlan-14": "2001:660:4406:5a0:703::12",
-      "kavlan-16": "2001:660:4406:7a0:703::12",
-      "kavlan-18": "2001:660:4406:8a0:703::12",
-      "kavlan-2": "2001:660:4406:781:3::12",
-      "kavlan-20": "2001:660:4406:3a0:703::12",
-      "kavlan-21": "2001:660:4406:6a0:703::12",
-      "kavlan-3": "2001:660:4406:782:3::12",
-      "kavlan-4": "2001:660:4406:790:3::12",
-      "kavlan-5": "2001:660:4406:791:3::12",
-      "kavlan-6": "2001:660:4406:792:3::12",
-      "kavlan-7": "2001:660:4406:793:3::12",
-      "kavlan-8": "2001:660:4406:794:3::12",
-      "kavlan-9": "2001:660:4406:795:3::12"
+      "kavlan-1": "2001:660:4406:780:3:0::12",
+      "kavlan-11": "2001:660:4406:1a0:703:0::12",
+      "kavlan-12": "2001:660:4406:2a0:703:0::12",
+      "kavlan-13": "2001:660:4406:4a0:703:0::12",
+      "kavlan-14": "2001:660:4406:5a0:703:0::12",
+      "kavlan-16": "2001:660:4406:7a0:703:0::12",
+      "kavlan-18": "2001:660:4406:8a0:703:0::12",
+      "kavlan-2": "2001:660:4406:781:3:0::12",
+      "kavlan-20": "2001:660:4406:3a0:703:0::12",
+      "kavlan-21": "2001:660:4406:6a0:703:0::12",
+      "kavlan-3": "2001:660:4406:782:3:0::12",
+      "kavlan-4": "2001:660:4406:790:3:0::12",
+      "kavlan-5": "2001:660:4406:791:3:0::12",
+      "kavlan-6": "2001:660:4406:792:3:0::12",
+      "kavlan-7": "2001:660:4406:793:3:0::12",
+      "kavlan-8": "2001:660:4406:794:3:0::12",
+      "kavlan-9": "2001:660:4406:795:3:0::12"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.18",
-      "ip6": "2001:660:4406:700:3::12",
+      "ip6": "2001:660:4406:700:3:0::12",
       "kavlan": true,
       "mac": "00:14:4f:ca:99:a8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-19.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-19.json
index b137222b039..d1fb9e5fcf7 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-19.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::13",
-      "kavlan-11": "2001:660:4406:1a0:703::13",
-      "kavlan-12": "2001:660:4406:2a0:703::13",
-      "kavlan-13": "2001:660:4406:4a0:703::13",
-      "kavlan-14": "2001:660:4406:5a0:703::13",
-      "kavlan-16": "2001:660:4406:7a0:703::13",
-      "kavlan-18": "2001:660:4406:8a0:703::13",
-      "kavlan-2": "2001:660:4406:781:3::13",
-      "kavlan-20": "2001:660:4406:3a0:703::13",
-      "kavlan-21": "2001:660:4406:6a0:703::13",
-      "kavlan-3": "2001:660:4406:782:3::13",
-      "kavlan-4": "2001:660:4406:790:3::13",
-      "kavlan-5": "2001:660:4406:791:3::13",
-      "kavlan-6": "2001:660:4406:792:3::13",
-      "kavlan-7": "2001:660:4406:793:3::13",
-      "kavlan-8": "2001:660:4406:794:3::13",
-      "kavlan-9": "2001:660:4406:795:3::13"
+      "kavlan-1": "2001:660:4406:780:3:0::13",
+      "kavlan-11": "2001:660:4406:1a0:703:0::13",
+      "kavlan-12": "2001:660:4406:2a0:703:0::13",
+      "kavlan-13": "2001:660:4406:4a0:703:0::13",
+      "kavlan-14": "2001:660:4406:5a0:703:0::13",
+      "kavlan-16": "2001:660:4406:7a0:703:0::13",
+      "kavlan-18": "2001:660:4406:8a0:703:0::13",
+      "kavlan-2": "2001:660:4406:781:3:0::13",
+      "kavlan-20": "2001:660:4406:3a0:703:0::13",
+      "kavlan-21": "2001:660:4406:6a0:703:0::13",
+      "kavlan-3": "2001:660:4406:782:3:0::13",
+      "kavlan-4": "2001:660:4406:790:3:0::13",
+      "kavlan-5": "2001:660:4406:791:3:0::13",
+      "kavlan-6": "2001:660:4406:792:3:0::13",
+      "kavlan-7": "2001:660:4406:793:3:0::13",
+      "kavlan-8": "2001:660:4406:794:3:0::13",
+      "kavlan-9": "2001:660:4406:795:3:0::13"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.19",
-      "ip6": "2001:660:4406:700:3::13",
+      "ip6": "2001:660:4406:700:3:0::13",
       "kavlan": true,
       "mac": "00:21:28:40:3c:3a",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-2.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-2.json
index 6aab824451d..dda53fd083c 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-2.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::2",
-      "kavlan-11": "2001:660:4406:1a0:703::2",
-      "kavlan-12": "2001:660:4406:2a0:703::2",
-      "kavlan-13": "2001:660:4406:4a0:703::2",
-      "kavlan-14": "2001:660:4406:5a0:703::2",
-      "kavlan-16": "2001:660:4406:7a0:703::2",
-      "kavlan-18": "2001:660:4406:8a0:703::2",
-      "kavlan-2": "2001:660:4406:781:3::2",
-      "kavlan-20": "2001:660:4406:3a0:703::2",
-      "kavlan-21": "2001:660:4406:6a0:703::2",
-      "kavlan-3": "2001:660:4406:782:3::2",
-      "kavlan-4": "2001:660:4406:790:3::2",
-      "kavlan-5": "2001:660:4406:791:3::2",
-      "kavlan-6": "2001:660:4406:792:3::2",
-      "kavlan-7": "2001:660:4406:793:3::2",
-      "kavlan-8": "2001:660:4406:794:3::2",
-      "kavlan-9": "2001:660:4406:795:3::2"
+      "kavlan-1": "2001:660:4406:780:3:0::2",
+      "kavlan-11": "2001:660:4406:1a0:703:0::2",
+      "kavlan-12": "2001:660:4406:2a0:703:0::2",
+      "kavlan-13": "2001:660:4406:4a0:703:0::2",
+      "kavlan-14": "2001:660:4406:5a0:703:0::2",
+      "kavlan-16": "2001:660:4406:7a0:703:0::2",
+      "kavlan-18": "2001:660:4406:8a0:703:0::2",
+      "kavlan-2": "2001:660:4406:781:3:0::2",
+      "kavlan-20": "2001:660:4406:3a0:703:0::2",
+      "kavlan-21": "2001:660:4406:6a0:703:0::2",
+      "kavlan-3": "2001:660:4406:782:3:0::2",
+      "kavlan-4": "2001:660:4406:790:3:0::2",
+      "kavlan-5": "2001:660:4406:791:3:0::2",
+      "kavlan-6": "2001:660:4406:792:3:0::2",
+      "kavlan-7": "2001:660:4406:793:3:0::2",
+      "kavlan-8": "2001:660:4406:794:3:0::2",
+      "kavlan-9": "2001:660:4406:795:3:0::2"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.2",
-      "ip6": "2001:660:4406:700:3::2",
+      "ip6": "2001:660:4406:700:3:0::2",
       "kavlan": true,
       "mac": "00:14:4f:ca:99:7c",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-21.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-21.json
index 62dfd9b6f08..39e62bf6495 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-21.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::15",
-      "kavlan-11": "2001:660:4406:1a0:703::15",
-      "kavlan-12": "2001:660:4406:2a0:703::15",
-      "kavlan-13": "2001:660:4406:4a0:703::15",
-      "kavlan-14": "2001:660:4406:5a0:703::15",
-      "kavlan-16": "2001:660:4406:7a0:703::15",
-      "kavlan-18": "2001:660:4406:8a0:703::15",
-      "kavlan-2": "2001:660:4406:781:3::15",
-      "kavlan-20": "2001:660:4406:3a0:703::15",
-      "kavlan-21": "2001:660:4406:6a0:703::15",
-      "kavlan-3": "2001:660:4406:782:3::15",
-      "kavlan-4": "2001:660:4406:790:3::15",
-      "kavlan-5": "2001:660:4406:791:3::15",
-      "kavlan-6": "2001:660:4406:792:3::15",
-      "kavlan-7": "2001:660:4406:793:3::15",
-      "kavlan-8": "2001:660:4406:794:3::15",
-      "kavlan-9": "2001:660:4406:795:3::15"
+      "kavlan-1": "2001:660:4406:780:3:0::15",
+      "kavlan-11": "2001:660:4406:1a0:703:0::15",
+      "kavlan-12": "2001:660:4406:2a0:703:0::15",
+      "kavlan-13": "2001:660:4406:4a0:703:0::15",
+      "kavlan-14": "2001:660:4406:5a0:703:0::15",
+      "kavlan-16": "2001:660:4406:7a0:703:0::15",
+      "kavlan-18": "2001:660:4406:8a0:703:0::15",
+      "kavlan-2": "2001:660:4406:781:3:0::15",
+      "kavlan-20": "2001:660:4406:3a0:703:0::15",
+      "kavlan-21": "2001:660:4406:6a0:703:0::15",
+      "kavlan-3": "2001:660:4406:782:3:0::15",
+      "kavlan-4": "2001:660:4406:790:3:0::15",
+      "kavlan-5": "2001:660:4406:791:3:0::15",
+      "kavlan-6": "2001:660:4406:792:3:0::15",
+      "kavlan-7": "2001:660:4406:793:3:0::15",
+      "kavlan-8": "2001:660:4406:794:3:0::15",
+      "kavlan-9": "2001:660:4406:795:3:0::15"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.21",
-      "ip6": "2001:660:4406:700:3::15",
+      "ip6": "2001:660:4406:700:3:0::15",
       "kavlan": true,
       "mac": "00:14:4f:ca:4d:78",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-24.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-24.json
index eee82c09280..f7dd05e9dc4 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-24.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::18",
-      "kavlan-11": "2001:660:4406:1a0:703::18",
-      "kavlan-12": "2001:660:4406:2a0:703::18",
-      "kavlan-13": "2001:660:4406:4a0:703::18",
-      "kavlan-14": "2001:660:4406:5a0:703::18",
-      "kavlan-16": "2001:660:4406:7a0:703::18",
-      "kavlan-18": "2001:660:4406:8a0:703::18",
-      "kavlan-2": "2001:660:4406:781:3::18",
-      "kavlan-20": "2001:660:4406:3a0:703::18",
-      "kavlan-21": "2001:660:4406:6a0:703::18",
-      "kavlan-3": "2001:660:4406:782:3::18",
-      "kavlan-4": "2001:660:4406:790:3::18",
-      "kavlan-5": "2001:660:4406:791:3::18",
-      "kavlan-6": "2001:660:4406:792:3::18",
-      "kavlan-7": "2001:660:4406:793:3::18",
-      "kavlan-8": "2001:660:4406:794:3::18",
-      "kavlan-9": "2001:660:4406:795:3::18"
+      "kavlan-1": "2001:660:4406:780:3:0::18",
+      "kavlan-11": "2001:660:4406:1a0:703:0::18",
+      "kavlan-12": "2001:660:4406:2a0:703:0::18",
+      "kavlan-13": "2001:660:4406:4a0:703:0::18",
+      "kavlan-14": "2001:660:4406:5a0:703:0::18",
+      "kavlan-16": "2001:660:4406:7a0:703:0::18",
+      "kavlan-18": "2001:660:4406:8a0:703:0::18",
+      "kavlan-2": "2001:660:4406:781:3:0::18",
+      "kavlan-20": "2001:660:4406:3a0:703:0::18",
+      "kavlan-21": "2001:660:4406:6a0:703:0::18",
+      "kavlan-3": "2001:660:4406:782:3:0::18",
+      "kavlan-4": "2001:660:4406:790:3:0::18",
+      "kavlan-5": "2001:660:4406:791:3:0::18",
+      "kavlan-6": "2001:660:4406:792:3:0::18",
+      "kavlan-7": "2001:660:4406:793:3:0::18",
+      "kavlan-8": "2001:660:4406:794:3:0::18",
+      "kavlan-9": "2001:660:4406:795:3:0::18"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.24",
-      "ip6": "2001:660:4406:700:3::18",
+      "ip6": "2001:660:4406:700:3:0::18",
       "kavlan": true,
       "mac": "00:14:4f:ca:92:38",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-25.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-25.json
index 14f6dd4a5d8..c8c3838e813 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-25.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::19",
-      "kavlan-11": "2001:660:4406:1a0:703::19",
-      "kavlan-12": "2001:660:4406:2a0:703::19",
-      "kavlan-13": "2001:660:4406:4a0:703::19",
-      "kavlan-14": "2001:660:4406:5a0:703::19",
-      "kavlan-16": "2001:660:4406:7a0:703::19",
-      "kavlan-18": "2001:660:4406:8a0:703::19",
-      "kavlan-2": "2001:660:4406:781:3::19",
-      "kavlan-20": "2001:660:4406:3a0:703::19",
-      "kavlan-21": "2001:660:4406:6a0:703::19",
-      "kavlan-3": "2001:660:4406:782:3::19",
-      "kavlan-4": "2001:660:4406:790:3::19",
-      "kavlan-5": "2001:660:4406:791:3::19",
-      "kavlan-6": "2001:660:4406:792:3::19",
-      "kavlan-7": "2001:660:4406:793:3::19",
-      "kavlan-8": "2001:660:4406:794:3::19",
-      "kavlan-9": "2001:660:4406:795:3::19"
+      "kavlan-1": "2001:660:4406:780:3:0::19",
+      "kavlan-11": "2001:660:4406:1a0:703:0::19",
+      "kavlan-12": "2001:660:4406:2a0:703:0::19",
+      "kavlan-13": "2001:660:4406:4a0:703:0::19",
+      "kavlan-14": "2001:660:4406:5a0:703:0::19",
+      "kavlan-16": "2001:660:4406:7a0:703:0::19",
+      "kavlan-18": "2001:660:4406:8a0:703:0::19",
+      "kavlan-2": "2001:660:4406:781:3:0::19",
+      "kavlan-20": "2001:660:4406:3a0:703:0::19",
+      "kavlan-21": "2001:660:4406:6a0:703:0::19",
+      "kavlan-3": "2001:660:4406:782:3:0::19",
+      "kavlan-4": "2001:660:4406:790:3:0::19",
+      "kavlan-5": "2001:660:4406:791:3:0::19",
+      "kavlan-6": "2001:660:4406:792:3:0::19",
+      "kavlan-7": "2001:660:4406:793:3:0::19",
+      "kavlan-8": "2001:660:4406:794:3:0::19",
+      "kavlan-9": "2001:660:4406:795:3:0::19"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.25",
-      "ip6": "2001:660:4406:700:3::19",
+      "ip6": "2001:660:4406:700:3:0::19",
       "kavlan": true,
       "mac": "00:14:4f:ca:91:60",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-3.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-3.json
index c1e18923055..a718309a20b 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-3.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-3.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::3",
-      "kavlan-11": "2001:660:4406:1a0:703::3",
-      "kavlan-12": "2001:660:4406:2a0:703::3",
-      "kavlan-13": "2001:660:4406:4a0:703::3",
-      "kavlan-14": "2001:660:4406:5a0:703::3",
-      "kavlan-16": "2001:660:4406:7a0:703::3",
-      "kavlan-18": "2001:660:4406:8a0:703::3",
-      "kavlan-2": "2001:660:4406:781:3::3",
-      "kavlan-20": "2001:660:4406:3a0:703::3",
-      "kavlan-21": "2001:660:4406:6a0:703::3",
-      "kavlan-3": "2001:660:4406:782:3::3",
-      "kavlan-4": "2001:660:4406:790:3::3",
-      "kavlan-5": "2001:660:4406:791:3::3",
-      "kavlan-6": "2001:660:4406:792:3::3",
-      "kavlan-7": "2001:660:4406:793:3::3",
-      "kavlan-8": "2001:660:4406:794:3::3",
-      "kavlan-9": "2001:660:4406:795:3::3"
+      "kavlan-1": "2001:660:4406:780:3:0::3",
+      "kavlan-11": "2001:660:4406:1a0:703:0::3",
+      "kavlan-12": "2001:660:4406:2a0:703:0::3",
+      "kavlan-13": "2001:660:4406:4a0:703:0::3",
+      "kavlan-14": "2001:660:4406:5a0:703:0::3",
+      "kavlan-16": "2001:660:4406:7a0:703:0::3",
+      "kavlan-18": "2001:660:4406:8a0:703:0::3",
+      "kavlan-2": "2001:660:4406:781:3:0::3",
+      "kavlan-20": "2001:660:4406:3a0:703:0::3",
+      "kavlan-21": "2001:660:4406:6a0:703:0::3",
+      "kavlan-3": "2001:660:4406:782:3:0::3",
+      "kavlan-4": "2001:660:4406:790:3:0::3",
+      "kavlan-5": "2001:660:4406:791:3:0::3",
+      "kavlan-6": "2001:660:4406:792:3:0::3",
+      "kavlan-7": "2001:660:4406:793:3:0::3",
+      "kavlan-8": "2001:660:4406:794:3:0::3",
+      "kavlan-9": "2001:660:4406:795:3:0::3"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.3",
-      "ip6": "2001:660:4406:700:3::3",
+      "ip6": "2001:660:4406:700:3:0::3",
       "kavlan": true,
       "mac": "00:14:4f:ca:92:6c",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-5.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-5.json
index 279355dbfa5..dcca162c1c9 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-5.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::5",
-      "kavlan-11": "2001:660:4406:1a0:703::5",
-      "kavlan-12": "2001:660:4406:2a0:703::5",
-      "kavlan-13": "2001:660:4406:4a0:703::5",
-      "kavlan-14": "2001:660:4406:5a0:703::5",
-      "kavlan-16": "2001:660:4406:7a0:703::5",
-      "kavlan-18": "2001:660:4406:8a0:703::5",
-      "kavlan-2": "2001:660:4406:781:3::5",
-      "kavlan-20": "2001:660:4406:3a0:703::5",
-      "kavlan-21": "2001:660:4406:6a0:703::5",
-      "kavlan-3": "2001:660:4406:782:3::5",
-      "kavlan-4": "2001:660:4406:790:3::5",
-      "kavlan-5": "2001:660:4406:791:3::5",
-      "kavlan-6": "2001:660:4406:792:3::5",
-      "kavlan-7": "2001:660:4406:793:3::5",
-      "kavlan-8": "2001:660:4406:794:3::5",
-      "kavlan-9": "2001:660:4406:795:3::5"
+      "kavlan-1": "2001:660:4406:780:3:0::5",
+      "kavlan-11": "2001:660:4406:1a0:703:0::5",
+      "kavlan-12": "2001:660:4406:2a0:703:0::5",
+      "kavlan-13": "2001:660:4406:4a0:703:0::5",
+      "kavlan-14": "2001:660:4406:5a0:703:0::5",
+      "kavlan-16": "2001:660:4406:7a0:703:0::5",
+      "kavlan-18": "2001:660:4406:8a0:703:0::5",
+      "kavlan-2": "2001:660:4406:781:3:0::5",
+      "kavlan-20": "2001:660:4406:3a0:703:0::5",
+      "kavlan-21": "2001:660:4406:6a0:703:0::5",
+      "kavlan-3": "2001:660:4406:782:3:0::5",
+      "kavlan-4": "2001:660:4406:790:3:0::5",
+      "kavlan-5": "2001:660:4406:791:3:0::5",
+      "kavlan-6": "2001:660:4406:792:3:0::5",
+      "kavlan-7": "2001:660:4406:793:3:0::5",
+      "kavlan-8": "2001:660:4406:794:3:0::5",
+      "kavlan-9": "2001:660:4406:795:3:0::5"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.5",
-      "ip6": "2001:660:4406:700:3::5",
+      "ip6": "2001:660:4406:700:3:0::5",
       "kavlan": true,
       "mac": "00:14:4f:ca:94:70",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-6.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-6.json
index e3c9971dade..84f596a9f21 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-6.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::6",
-      "kavlan-11": "2001:660:4406:1a0:703::6",
-      "kavlan-12": "2001:660:4406:2a0:703::6",
-      "kavlan-13": "2001:660:4406:4a0:703::6",
-      "kavlan-14": "2001:660:4406:5a0:703::6",
-      "kavlan-16": "2001:660:4406:7a0:703::6",
-      "kavlan-18": "2001:660:4406:8a0:703::6",
-      "kavlan-2": "2001:660:4406:781:3::6",
-      "kavlan-20": "2001:660:4406:3a0:703::6",
-      "kavlan-21": "2001:660:4406:6a0:703::6",
-      "kavlan-3": "2001:660:4406:782:3::6",
-      "kavlan-4": "2001:660:4406:790:3::6",
-      "kavlan-5": "2001:660:4406:791:3::6",
-      "kavlan-6": "2001:660:4406:792:3::6",
-      "kavlan-7": "2001:660:4406:793:3::6",
-      "kavlan-8": "2001:660:4406:794:3::6",
-      "kavlan-9": "2001:660:4406:795:3::6"
+      "kavlan-1": "2001:660:4406:780:3:0::6",
+      "kavlan-11": "2001:660:4406:1a0:703:0::6",
+      "kavlan-12": "2001:660:4406:2a0:703:0::6",
+      "kavlan-13": "2001:660:4406:4a0:703:0::6",
+      "kavlan-14": "2001:660:4406:5a0:703:0::6",
+      "kavlan-16": "2001:660:4406:7a0:703:0::6",
+      "kavlan-18": "2001:660:4406:8a0:703:0::6",
+      "kavlan-2": "2001:660:4406:781:3:0::6",
+      "kavlan-20": "2001:660:4406:3a0:703:0::6",
+      "kavlan-21": "2001:660:4406:6a0:703:0::6",
+      "kavlan-3": "2001:660:4406:782:3:0::6",
+      "kavlan-4": "2001:660:4406:790:3:0::6",
+      "kavlan-5": "2001:660:4406:791:3:0::6",
+      "kavlan-6": "2001:660:4406:792:3:0::6",
+      "kavlan-7": "2001:660:4406:793:3:0::6",
+      "kavlan-8": "2001:660:4406:794:3:0::6",
+      "kavlan-9": "2001:660:4406:795:3:0::6"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.6",
-      "ip6": "2001:660:4406:700:3::6",
+      "ip6": "2001:660:4406:700:3:0::6",
       "kavlan": true,
       "mac": "00:14:4f:ca:92:30",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-7.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-7.json
index abf76b2f88c..ac762de03ac 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-7.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::7",
-      "kavlan-11": "2001:660:4406:1a0:703::7",
-      "kavlan-12": "2001:660:4406:2a0:703::7",
-      "kavlan-13": "2001:660:4406:4a0:703::7",
-      "kavlan-14": "2001:660:4406:5a0:703::7",
-      "kavlan-16": "2001:660:4406:7a0:703::7",
-      "kavlan-18": "2001:660:4406:8a0:703::7",
-      "kavlan-2": "2001:660:4406:781:3::7",
-      "kavlan-20": "2001:660:4406:3a0:703::7",
-      "kavlan-21": "2001:660:4406:6a0:703::7",
-      "kavlan-3": "2001:660:4406:782:3::7",
-      "kavlan-4": "2001:660:4406:790:3::7",
-      "kavlan-5": "2001:660:4406:791:3::7",
-      "kavlan-6": "2001:660:4406:792:3::7",
-      "kavlan-7": "2001:660:4406:793:3::7",
-      "kavlan-8": "2001:660:4406:794:3::7",
-      "kavlan-9": "2001:660:4406:795:3::7"
+      "kavlan-1": "2001:660:4406:780:3:0::7",
+      "kavlan-11": "2001:660:4406:1a0:703:0::7",
+      "kavlan-12": "2001:660:4406:2a0:703:0::7",
+      "kavlan-13": "2001:660:4406:4a0:703:0::7",
+      "kavlan-14": "2001:660:4406:5a0:703:0::7",
+      "kavlan-16": "2001:660:4406:7a0:703:0::7",
+      "kavlan-18": "2001:660:4406:8a0:703:0::7",
+      "kavlan-2": "2001:660:4406:781:3:0::7",
+      "kavlan-20": "2001:660:4406:3a0:703:0::7",
+      "kavlan-21": "2001:660:4406:6a0:703:0::7",
+      "kavlan-3": "2001:660:4406:782:3:0::7",
+      "kavlan-4": "2001:660:4406:790:3:0::7",
+      "kavlan-5": "2001:660:4406:791:3:0::7",
+      "kavlan-6": "2001:660:4406:792:3:0::7",
+      "kavlan-7": "2001:660:4406:793:3:0::7",
+      "kavlan-8": "2001:660:4406:794:3:0::7",
+      "kavlan-9": "2001:660:4406:795:3:0::7"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.7",
-      "ip6": "2001:660:4406:700:3::7",
+      "ip6": "2001:660:4406:700:3:0::7",
       "kavlan": true,
       "mac": "00:14:4f:ca:a7:28",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-8.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-8.json
index 41220bc01fe..456a7bd9a4f 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-8.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::8",
-      "kavlan-11": "2001:660:4406:1a0:703::8",
-      "kavlan-12": "2001:660:4406:2a0:703::8",
-      "kavlan-13": "2001:660:4406:4a0:703::8",
-      "kavlan-14": "2001:660:4406:5a0:703::8",
-      "kavlan-16": "2001:660:4406:7a0:703::8",
-      "kavlan-18": "2001:660:4406:8a0:703::8",
-      "kavlan-2": "2001:660:4406:781:3::8",
-      "kavlan-20": "2001:660:4406:3a0:703::8",
-      "kavlan-21": "2001:660:4406:6a0:703::8",
-      "kavlan-3": "2001:660:4406:782:3::8",
-      "kavlan-4": "2001:660:4406:790:3::8",
-      "kavlan-5": "2001:660:4406:791:3::8",
-      "kavlan-6": "2001:660:4406:792:3::8",
-      "kavlan-7": "2001:660:4406:793:3::8",
-      "kavlan-8": "2001:660:4406:794:3::8",
-      "kavlan-9": "2001:660:4406:795:3::8"
+      "kavlan-1": "2001:660:4406:780:3:0::8",
+      "kavlan-11": "2001:660:4406:1a0:703:0::8",
+      "kavlan-12": "2001:660:4406:2a0:703:0::8",
+      "kavlan-13": "2001:660:4406:4a0:703:0::8",
+      "kavlan-14": "2001:660:4406:5a0:703:0::8",
+      "kavlan-16": "2001:660:4406:7a0:703:0::8",
+      "kavlan-18": "2001:660:4406:8a0:703:0::8",
+      "kavlan-2": "2001:660:4406:781:3:0::8",
+      "kavlan-20": "2001:660:4406:3a0:703:0::8",
+      "kavlan-21": "2001:660:4406:6a0:703:0::8",
+      "kavlan-3": "2001:660:4406:782:3:0::8",
+      "kavlan-4": "2001:660:4406:790:3:0::8",
+      "kavlan-5": "2001:660:4406:791:3:0::8",
+      "kavlan-6": "2001:660:4406:792:3:0::8",
+      "kavlan-7": "2001:660:4406:793:3:0::8",
+      "kavlan-8": "2001:660:4406:794:3:0::8",
+      "kavlan-9": "2001:660:4406:795:3:0::8"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.8",
-      "ip6": "2001:660:4406:700:3::8",
+      "ip6": "2001:660:4406:700:3:0::8",
       "kavlan": true,
       "mac": "00:14:4f:ca:92:b4",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-9.json b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-9.json
index 674b594074e..36d31c9aa75 100644
--- a/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-9.json
+++ b/data/grid5000/sites/rennes/clusters/parapide/nodes/parapide-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:3::9",
-      "kavlan-11": "2001:660:4406:1a0:703::9",
-      "kavlan-12": "2001:660:4406:2a0:703::9",
-      "kavlan-13": "2001:660:4406:4a0:703::9",
-      "kavlan-14": "2001:660:4406:5a0:703::9",
-      "kavlan-16": "2001:660:4406:7a0:703::9",
-      "kavlan-18": "2001:660:4406:8a0:703::9",
-      "kavlan-2": "2001:660:4406:781:3::9",
-      "kavlan-20": "2001:660:4406:3a0:703::9",
-      "kavlan-21": "2001:660:4406:6a0:703::9",
-      "kavlan-3": "2001:660:4406:782:3::9",
-      "kavlan-4": "2001:660:4406:790:3::9",
-      "kavlan-5": "2001:660:4406:791:3::9",
-      "kavlan-6": "2001:660:4406:792:3::9",
-      "kavlan-7": "2001:660:4406:793:3::9",
-      "kavlan-8": "2001:660:4406:794:3::9",
-      "kavlan-9": "2001:660:4406:795:3::9"
+      "kavlan-1": "2001:660:4406:780:3:0::9",
+      "kavlan-11": "2001:660:4406:1a0:703:0::9",
+      "kavlan-12": "2001:660:4406:2a0:703:0::9",
+      "kavlan-13": "2001:660:4406:4a0:703:0::9",
+      "kavlan-14": "2001:660:4406:5a0:703:0::9",
+      "kavlan-16": "2001:660:4406:7a0:703:0::9",
+      "kavlan-18": "2001:660:4406:8a0:703:0::9",
+      "kavlan-2": "2001:660:4406:781:3:0::9",
+      "kavlan-20": "2001:660:4406:3a0:703:0::9",
+      "kavlan-21": "2001:660:4406:6a0:703:0::9",
+      "kavlan-3": "2001:660:4406:782:3:0::9",
+      "kavlan-4": "2001:660:4406:790:3:0::9",
+      "kavlan-5": "2001:660:4406:791:3:0::9",
+      "kavlan-6": "2001:660:4406:792:3:0::9",
+      "kavlan-7": "2001:660:4406:793:3:0::9",
+      "kavlan-8": "2001:660:4406:794:3:0::9",
+      "kavlan-9": "2001:660:4406:795:3:0::9"
     }
   },
   "main_memory": {
@@ -76,7 +76,7 @@
       "firmware_version": "2.1.5",
       "interface": "Ethernet",
       "ip": "172.16.98.9",
-      "ip6": "2001:660:4406:700:3::9",
+      "ip6": "2001:660:4406:700:3:0::9",
       "kavlan": true,
       "mac": "00:14:4f:ca:98:a0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-1.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-1.json
index 3f5c2201589..b6f11e41ceb 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-1.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::1",
-      "kavlan-11": "2001:660:4406:1a0:704::1",
-      "kavlan-12": "2001:660:4406:2a0:704::1",
-      "kavlan-13": "2001:660:4406:4a0:704::1",
-      "kavlan-14": "2001:660:4406:5a0:704::1",
-      "kavlan-16": "2001:660:4406:7a0:704::1",
-      "kavlan-18": "2001:660:4406:8a0:704::1",
-      "kavlan-2": "2001:660:4406:781:4::1",
-      "kavlan-20": "2001:660:4406:3a0:704::1",
-      "kavlan-21": "2001:660:4406:6a0:704::1",
-      "kavlan-3": "2001:660:4406:782:4::1",
-      "kavlan-4": "2001:660:4406:790:4::1",
-      "kavlan-5": "2001:660:4406:791:4::1",
-      "kavlan-6": "2001:660:4406:792:4::1",
-      "kavlan-7": "2001:660:4406:793:4::1",
-      "kavlan-8": "2001:660:4406:794:4::1",
-      "kavlan-9": "2001:660:4406:795:4::1"
+      "kavlan-1": "2001:660:4406:780:4:0::1",
+      "kavlan-11": "2001:660:4406:1a0:704:0::1",
+      "kavlan-12": "2001:660:4406:2a0:704:0::1",
+      "kavlan-13": "2001:660:4406:4a0:704:0::1",
+      "kavlan-14": "2001:660:4406:5a0:704:0::1",
+      "kavlan-16": "2001:660:4406:7a0:704:0::1",
+      "kavlan-18": "2001:660:4406:8a0:704:0::1",
+      "kavlan-2": "2001:660:4406:781:4:0::1",
+      "kavlan-20": "2001:660:4406:3a0:704:0::1",
+      "kavlan-21": "2001:660:4406:6a0:704:0::1",
+      "kavlan-3": "2001:660:4406:782:4:0::1",
+      "kavlan-4": "2001:660:4406:790:4:0::1",
+      "kavlan-5": "2001:660:4406:791:4:0::1",
+      "kavlan-6": "2001:660:4406:792:4:0::1",
+      "kavlan-7": "2001:660:4406:793:4:0::1",
+      "kavlan-8": "2001:660:4406:794:4:0::1",
+      "kavlan-9": "2001:660:4406:795:4:0::1"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.1",
-      "ip6": "2001:660:4406:700:4::1",
+      "ip6": "2001:660:4406:700:4:0::1",
       "kavlan": true,
       "mac": "78:e7:d1:f5:ef:23",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-11.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-11.json
index 0ab2cdc04bf..77e720e6e35 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-11.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::b",
-      "kavlan-11": "2001:660:4406:1a0:704::b",
-      "kavlan-12": "2001:660:4406:2a0:704::b",
-      "kavlan-13": "2001:660:4406:4a0:704::b",
-      "kavlan-14": "2001:660:4406:5a0:704::b",
-      "kavlan-16": "2001:660:4406:7a0:704::b",
-      "kavlan-18": "2001:660:4406:8a0:704::b",
-      "kavlan-2": "2001:660:4406:781:4::b",
-      "kavlan-20": "2001:660:4406:3a0:704::b",
-      "kavlan-21": "2001:660:4406:6a0:704::b",
-      "kavlan-3": "2001:660:4406:782:4::b",
-      "kavlan-4": "2001:660:4406:790:4::b",
-      "kavlan-5": "2001:660:4406:791:4::b",
-      "kavlan-6": "2001:660:4406:792:4::b",
-      "kavlan-7": "2001:660:4406:793:4::b",
-      "kavlan-8": "2001:660:4406:794:4::b",
-      "kavlan-9": "2001:660:4406:795:4::b"
+      "kavlan-1": "2001:660:4406:780:4:0::b",
+      "kavlan-11": "2001:660:4406:1a0:704:0::b",
+      "kavlan-12": "2001:660:4406:2a0:704:0::b",
+      "kavlan-13": "2001:660:4406:4a0:704:0::b",
+      "kavlan-14": "2001:660:4406:5a0:704:0::b",
+      "kavlan-16": "2001:660:4406:7a0:704:0::b",
+      "kavlan-18": "2001:660:4406:8a0:704:0::b",
+      "kavlan-2": "2001:660:4406:781:4:0::b",
+      "kavlan-20": "2001:660:4406:3a0:704:0::b",
+      "kavlan-21": "2001:660:4406:6a0:704:0::b",
+      "kavlan-3": "2001:660:4406:782:4:0::b",
+      "kavlan-4": "2001:660:4406:790:4:0::b",
+      "kavlan-5": "2001:660:4406:791:4:0::b",
+      "kavlan-6": "2001:660:4406:792:4:0::b",
+      "kavlan-7": "2001:660:4406:793:4:0::b",
+      "kavlan-8": "2001:660:4406:794:4:0::b",
+      "kavlan-9": "2001:660:4406:795:4:0::b"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.11",
-      "ip6": "2001:660:4406:700:4::b",
+      "ip6": "2001:660:4406:700:4:0::b",
       "kavlan": true,
       "mac": "78:e7:d1:f5:ee:f3",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-12.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-12.json
index 63735f33787..729415c485c 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-12.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::c",
-      "kavlan-11": "2001:660:4406:1a0:704::c",
-      "kavlan-12": "2001:660:4406:2a0:704::c",
-      "kavlan-13": "2001:660:4406:4a0:704::c",
-      "kavlan-14": "2001:660:4406:5a0:704::c",
-      "kavlan-16": "2001:660:4406:7a0:704::c",
-      "kavlan-18": "2001:660:4406:8a0:704::c",
-      "kavlan-2": "2001:660:4406:781:4::c",
-      "kavlan-20": "2001:660:4406:3a0:704::c",
-      "kavlan-21": "2001:660:4406:6a0:704::c",
-      "kavlan-3": "2001:660:4406:782:4::c",
-      "kavlan-4": "2001:660:4406:790:4::c",
-      "kavlan-5": "2001:660:4406:791:4::c",
-      "kavlan-6": "2001:660:4406:792:4::c",
-      "kavlan-7": "2001:660:4406:793:4::c",
-      "kavlan-8": "2001:660:4406:794:4::c",
-      "kavlan-9": "2001:660:4406:795:4::c"
+      "kavlan-1": "2001:660:4406:780:4:0::c",
+      "kavlan-11": "2001:660:4406:1a0:704:0::c",
+      "kavlan-12": "2001:660:4406:2a0:704:0::c",
+      "kavlan-13": "2001:660:4406:4a0:704:0::c",
+      "kavlan-14": "2001:660:4406:5a0:704:0::c",
+      "kavlan-16": "2001:660:4406:7a0:704:0::c",
+      "kavlan-18": "2001:660:4406:8a0:704:0::c",
+      "kavlan-2": "2001:660:4406:781:4:0::c",
+      "kavlan-20": "2001:660:4406:3a0:704:0::c",
+      "kavlan-21": "2001:660:4406:6a0:704:0::c",
+      "kavlan-3": "2001:660:4406:782:4:0::c",
+      "kavlan-4": "2001:660:4406:790:4:0::c",
+      "kavlan-5": "2001:660:4406:791:4:0::c",
+      "kavlan-6": "2001:660:4406:792:4:0::c",
+      "kavlan-7": "2001:660:4406:793:4:0::c",
+      "kavlan-8": "2001:660:4406:794:4:0::c",
+      "kavlan-9": "2001:660:4406:795:4:0::c"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.12",
-      "ip6": "2001:660:4406:700:4::c",
+      "ip6": "2001:660:4406:700:4:0::c",
       "kavlan": true,
       "mac": "78:e7:d1:f9:4e:c9",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-15.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-15.json
index 66c4dce5c47..2b1d683f17c 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-15.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::f",
-      "kavlan-11": "2001:660:4406:1a0:704::f",
-      "kavlan-12": "2001:660:4406:2a0:704::f",
-      "kavlan-13": "2001:660:4406:4a0:704::f",
-      "kavlan-14": "2001:660:4406:5a0:704::f",
-      "kavlan-16": "2001:660:4406:7a0:704::f",
-      "kavlan-18": "2001:660:4406:8a0:704::f",
-      "kavlan-2": "2001:660:4406:781:4::f",
-      "kavlan-20": "2001:660:4406:3a0:704::f",
-      "kavlan-21": "2001:660:4406:6a0:704::f",
-      "kavlan-3": "2001:660:4406:782:4::f",
-      "kavlan-4": "2001:660:4406:790:4::f",
-      "kavlan-5": "2001:660:4406:791:4::f",
-      "kavlan-6": "2001:660:4406:792:4::f",
-      "kavlan-7": "2001:660:4406:793:4::f",
-      "kavlan-8": "2001:660:4406:794:4::f",
-      "kavlan-9": "2001:660:4406:795:4::f"
+      "kavlan-1": "2001:660:4406:780:4:0::f",
+      "kavlan-11": "2001:660:4406:1a0:704:0::f",
+      "kavlan-12": "2001:660:4406:2a0:704:0::f",
+      "kavlan-13": "2001:660:4406:4a0:704:0::f",
+      "kavlan-14": "2001:660:4406:5a0:704:0::f",
+      "kavlan-16": "2001:660:4406:7a0:704:0::f",
+      "kavlan-18": "2001:660:4406:8a0:704:0::f",
+      "kavlan-2": "2001:660:4406:781:4:0::f",
+      "kavlan-20": "2001:660:4406:3a0:704:0::f",
+      "kavlan-21": "2001:660:4406:6a0:704:0::f",
+      "kavlan-3": "2001:660:4406:782:4:0::f",
+      "kavlan-4": "2001:660:4406:790:4:0::f",
+      "kavlan-5": "2001:660:4406:791:4:0::f",
+      "kavlan-6": "2001:660:4406:792:4:0::f",
+      "kavlan-7": "2001:660:4406:793:4:0::f",
+      "kavlan-8": "2001:660:4406:794:4:0::f",
+      "kavlan-9": "2001:660:4406:795:4:0::f"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.15",
-      "ip6": "2001:660:4406:700:4::f",
+      "ip6": "2001:660:4406:700:4:0::f",
       "kavlan": true,
       "mac": "78:e7:d1:f5:4f:05",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-19.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-19.json
index 5335df50d7b..1de068b42e6 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-19.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::13",
-      "kavlan-11": "2001:660:4406:1a0:704::13",
-      "kavlan-12": "2001:660:4406:2a0:704::13",
-      "kavlan-13": "2001:660:4406:4a0:704::13",
-      "kavlan-14": "2001:660:4406:5a0:704::13",
-      "kavlan-16": "2001:660:4406:7a0:704::13",
-      "kavlan-18": "2001:660:4406:8a0:704::13",
-      "kavlan-2": "2001:660:4406:781:4::13",
-      "kavlan-20": "2001:660:4406:3a0:704::13",
-      "kavlan-21": "2001:660:4406:6a0:704::13",
-      "kavlan-3": "2001:660:4406:782:4::13",
-      "kavlan-4": "2001:660:4406:790:4::13",
-      "kavlan-5": "2001:660:4406:791:4::13",
-      "kavlan-6": "2001:660:4406:792:4::13",
-      "kavlan-7": "2001:660:4406:793:4::13",
-      "kavlan-8": "2001:660:4406:794:4::13",
-      "kavlan-9": "2001:660:4406:795:4::13"
+      "kavlan-1": "2001:660:4406:780:4:0::13",
+      "kavlan-11": "2001:660:4406:1a0:704:0::13",
+      "kavlan-12": "2001:660:4406:2a0:704:0::13",
+      "kavlan-13": "2001:660:4406:4a0:704:0::13",
+      "kavlan-14": "2001:660:4406:5a0:704:0::13",
+      "kavlan-16": "2001:660:4406:7a0:704:0::13",
+      "kavlan-18": "2001:660:4406:8a0:704:0::13",
+      "kavlan-2": "2001:660:4406:781:4:0::13",
+      "kavlan-20": "2001:660:4406:3a0:704:0::13",
+      "kavlan-21": "2001:660:4406:6a0:704:0::13",
+      "kavlan-3": "2001:660:4406:782:4:0::13",
+      "kavlan-4": "2001:660:4406:790:4:0::13",
+      "kavlan-5": "2001:660:4406:791:4:0::13",
+      "kavlan-6": "2001:660:4406:792:4:0::13",
+      "kavlan-7": "2001:660:4406:793:4:0::13",
+      "kavlan-8": "2001:660:4406:794:4:0::13",
+      "kavlan-9": "2001:660:4406:795:4:0::13"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.19",
-      "ip6": "2001:660:4406:700:4::13",
+      "ip6": "2001:660:4406:700:4:0::13",
       "kavlan": true,
       "mac": "d4:85:64:45:b5:37",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-2.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-2.json
index 59fbc81cbca..f0ceefefc3a 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-2.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::2",
-      "kavlan-11": "2001:660:4406:1a0:704::2",
-      "kavlan-12": "2001:660:4406:2a0:704::2",
-      "kavlan-13": "2001:660:4406:4a0:704::2",
-      "kavlan-14": "2001:660:4406:5a0:704::2",
-      "kavlan-16": "2001:660:4406:7a0:704::2",
-      "kavlan-18": "2001:660:4406:8a0:704::2",
-      "kavlan-2": "2001:660:4406:781:4::2",
-      "kavlan-20": "2001:660:4406:3a0:704::2",
-      "kavlan-21": "2001:660:4406:6a0:704::2",
-      "kavlan-3": "2001:660:4406:782:4::2",
-      "kavlan-4": "2001:660:4406:790:4::2",
-      "kavlan-5": "2001:660:4406:791:4::2",
-      "kavlan-6": "2001:660:4406:792:4::2",
-      "kavlan-7": "2001:660:4406:793:4::2",
-      "kavlan-8": "2001:660:4406:794:4::2",
-      "kavlan-9": "2001:660:4406:795:4::2"
+      "kavlan-1": "2001:660:4406:780:4:0::2",
+      "kavlan-11": "2001:660:4406:1a0:704:0::2",
+      "kavlan-12": "2001:660:4406:2a0:704:0::2",
+      "kavlan-13": "2001:660:4406:4a0:704:0::2",
+      "kavlan-14": "2001:660:4406:5a0:704:0::2",
+      "kavlan-16": "2001:660:4406:7a0:704:0::2",
+      "kavlan-18": "2001:660:4406:8a0:704:0::2",
+      "kavlan-2": "2001:660:4406:781:4:0::2",
+      "kavlan-20": "2001:660:4406:3a0:704:0::2",
+      "kavlan-21": "2001:660:4406:6a0:704:0::2",
+      "kavlan-3": "2001:660:4406:782:4:0::2",
+      "kavlan-4": "2001:660:4406:790:4:0::2",
+      "kavlan-5": "2001:660:4406:791:4:0::2",
+      "kavlan-6": "2001:660:4406:792:4:0::2",
+      "kavlan-7": "2001:660:4406:793:4:0::2",
+      "kavlan-8": "2001:660:4406:794:4:0::2",
+      "kavlan-9": "2001:660:4406:795:4:0::2"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.2",
-      "ip6": "2001:660:4406:700:4::2",
+      "ip6": "2001:660:4406:700:4:0::2",
       "kavlan": true,
       "mac": "d8:d3:85:e6:a5:a3",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-20.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-20.json
index 9dbbc228863..e1e5039f1fc 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-20.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::14",
-      "kavlan-11": "2001:660:4406:1a0:704::14",
-      "kavlan-12": "2001:660:4406:2a0:704::14",
-      "kavlan-13": "2001:660:4406:4a0:704::14",
-      "kavlan-14": "2001:660:4406:5a0:704::14",
-      "kavlan-16": "2001:660:4406:7a0:704::14",
-      "kavlan-18": "2001:660:4406:8a0:704::14",
-      "kavlan-2": "2001:660:4406:781:4::14",
-      "kavlan-20": "2001:660:4406:3a0:704::14",
-      "kavlan-21": "2001:660:4406:6a0:704::14",
-      "kavlan-3": "2001:660:4406:782:4::14",
-      "kavlan-4": "2001:660:4406:790:4::14",
-      "kavlan-5": "2001:660:4406:791:4::14",
-      "kavlan-6": "2001:660:4406:792:4::14",
-      "kavlan-7": "2001:660:4406:793:4::14",
-      "kavlan-8": "2001:660:4406:794:4::14",
-      "kavlan-9": "2001:660:4406:795:4::14"
+      "kavlan-1": "2001:660:4406:780:4:0::14",
+      "kavlan-11": "2001:660:4406:1a0:704:0::14",
+      "kavlan-12": "2001:660:4406:2a0:704:0::14",
+      "kavlan-13": "2001:660:4406:4a0:704:0::14",
+      "kavlan-14": "2001:660:4406:5a0:704:0::14",
+      "kavlan-16": "2001:660:4406:7a0:704:0::14",
+      "kavlan-18": "2001:660:4406:8a0:704:0::14",
+      "kavlan-2": "2001:660:4406:781:4:0::14",
+      "kavlan-20": "2001:660:4406:3a0:704:0::14",
+      "kavlan-21": "2001:660:4406:6a0:704:0::14",
+      "kavlan-3": "2001:660:4406:782:4:0::14",
+      "kavlan-4": "2001:660:4406:790:4:0::14",
+      "kavlan-5": "2001:660:4406:791:4:0::14",
+      "kavlan-6": "2001:660:4406:792:4:0::14",
+      "kavlan-7": "2001:660:4406:793:4:0::14",
+      "kavlan-8": "2001:660:4406:794:4:0::14",
+      "kavlan-9": "2001:660:4406:795:4:0::14"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.20",
-      "ip6": "2001:660:4406:700:4::14",
+      "ip6": "2001:660:4406:700:4:0::14",
       "kavlan": true,
       "mac": "78:e7:d1:f5:fe:99",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-21.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-21.json
index c62efb07a5c..afc154e049a 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-21.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::15",
-      "kavlan-11": "2001:660:4406:1a0:704::15",
-      "kavlan-12": "2001:660:4406:2a0:704::15",
-      "kavlan-13": "2001:660:4406:4a0:704::15",
-      "kavlan-14": "2001:660:4406:5a0:704::15",
-      "kavlan-16": "2001:660:4406:7a0:704::15",
-      "kavlan-18": "2001:660:4406:8a0:704::15",
-      "kavlan-2": "2001:660:4406:781:4::15",
-      "kavlan-20": "2001:660:4406:3a0:704::15",
-      "kavlan-21": "2001:660:4406:6a0:704::15",
-      "kavlan-3": "2001:660:4406:782:4::15",
-      "kavlan-4": "2001:660:4406:790:4::15",
-      "kavlan-5": "2001:660:4406:791:4::15",
-      "kavlan-6": "2001:660:4406:792:4::15",
-      "kavlan-7": "2001:660:4406:793:4::15",
-      "kavlan-8": "2001:660:4406:794:4::15",
-      "kavlan-9": "2001:660:4406:795:4::15"
+      "kavlan-1": "2001:660:4406:780:4:0::15",
+      "kavlan-11": "2001:660:4406:1a0:704:0::15",
+      "kavlan-12": "2001:660:4406:2a0:704:0::15",
+      "kavlan-13": "2001:660:4406:4a0:704:0::15",
+      "kavlan-14": "2001:660:4406:5a0:704:0::15",
+      "kavlan-16": "2001:660:4406:7a0:704:0::15",
+      "kavlan-18": "2001:660:4406:8a0:704:0::15",
+      "kavlan-2": "2001:660:4406:781:4:0::15",
+      "kavlan-20": "2001:660:4406:3a0:704:0::15",
+      "kavlan-21": "2001:660:4406:6a0:704:0::15",
+      "kavlan-3": "2001:660:4406:782:4:0::15",
+      "kavlan-4": "2001:660:4406:790:4:0::15",
+      "kavlan-5": "2001:660:4406:791:4:0::15",
+      "kavlan-6": "2001:660:4406:792:4:0::15",
+      "kavlan-7": "2001:660:4406:793:4:0::15",
+      "kavlan-8": "2001:660:4406:794:4:0::15",
+      "kavlan-9": "2001:660:4406:795:4:0::15"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.21",
-      "ip6": "2001:660:4406:700:4::15",
+      "ip6": "2001:660:4406:700:4:0::15",
       "kavlan": true,
       "mac": "78:e7:d1:f5:de:b5",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-22.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-22.json
index e532540b59a..41096e41069 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-22.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::16",
-      "kavlan-11": "2001:660:4406:1a0:704::16",
-      "kavlan-12": "2001:660:4406:2a0:704::16",
-      "kavlan-13": "2001:660:4406:4a0:704::16",
-      "kavlan-14": "2001:660:4406:5a0:704::16",
-      "kavlan-16": "2001:660:4406:7a0:704::16",
-      "kavlan-18": "2001:660:4406:8a0:704::16",
-      "kavlan-2": "2001:660:4406:781:4::16",
-      "kavlan-20": "2001:660:4406:3a0:704::16",
-      "kavlan-21": "2001:660:4406:6a0:704::16",
-      "kavlan-3": "2001:660:4406:782:4::16",
-      "kavlan-4": "2001:660:4406:790:4::16",
-      "kavlan-5": "2001:660:4406:791:4::16",
-      "kavlan-6": "2001:660:4406:792:4::16",
-      "kavlan-7": "2001:660:4406:793:4::16",
-      "kavlan-8": "2001:660:4406:794:4::16",
-      "kavlan-9": "2001:660:4406:795:4::16"
+      "kavlan-1": "2001:660:4406:780:4:0::16",
+      "kavlan-11": "2001:660:4406:1a0:704:0::16",
+      "kavlan-12": "2001:660:4406:2a0:704:0::16",
+      "kavlan-13": "2001:660:4406:4a0:704:0::16",
+      "kavlan-14": "2001:660:4406:5a0:704:0::16",
+      "kavlan-16": "2001:660:4406:7a0:704:0::16",
+      "kavlan-18": "2001:660:4406:8a0:704:0::16",
+      "kavlan-2": "2001:660:4406:781:4:0::16",
+      "kavlan-20": "2001:660:4406:3a0:704:0::16",
+      "kavlan-21": "2001:660:4406:6a0:704:0::16",
+      "kavlan-3": "2001:660:4406:782:4:0::16",
+      "kavlan-4": "2001:660:4406:790:4:0::16",
+      "kavlan-5": "2001:660:4406:791:4:0::16",
+      "kavlan-6": "2001:660:4406:792:4:0::16",
+      "kavlan-7": "2001:660:4406:793:4:0::16",
+      "kavlan-8": "2001:660:4406:794:4:0::16",
+      "kavlan-9": "2001:660:4406:795:4:0::16"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.22",
-      "ip6": "2001:660:4406:700:4::16",
+      "ip6": "2001:660:4406:700:4:0::16",
       "kavlan": true,
       "mac": "d4:85:64:43:5b:8d",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-25.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-25.json
index a3cfd8eb3dd..5651c5282b1 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-25.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::19",
-      "kavlan-11": "2001:660:4406:1a0:704::19",
-      "kavlan-12": "2001:660:4406:2a0:704::19",
-      "kavlan-13": "2001:660:4406:4a0:704::19",
-      "kavlan-14": "2001:660:4406:5a0:704::19",
-      "kavlan-16": "2001:660:4406:7a0:704::19",
-      "kavlan-18": "2001:660:4406:8a0:704::19",
-      "kavlan-2": "2001:660:4406:781:4::19",
-      "kavlan-20": "2001:660:4406:3a0:704::19",
-      "kavlan-21": "2001:660:4406:6a0:704::19",
-      "kavlan-3": "2001:660:4406:782:4::19",
-      "kavlan-4": "2001:660:4406:790:4::19",
-      "kavlan-5": "2001:660:4406:791:4::19",
-      "kavlan-6": "2001:660:4406:792:4::19",
-      "kavlan-7": "2001:660:4406:793:4::19",
-      "kavlan-8": "2001:660:4406:794:4::19",
-      "kavlan-9": "2001:660:4406:795:4::19"
+      "kavlan-1": "2001:660:4406:780:4:0::19",
+      "kavlan-11": "2001:660:4406:1a0:704:0::19",
+      "kavlan-12": "2001:660:4406:2a0:704:0::19",
+      "kavlan-13": "2001:660:4406:4a0:704:0::19",
+      "kavlan-14": "2001:660:4406:5a0:704:0::19",
+      "kavlan-16": "2001:660:4406:7a0:704:0::19",
+      "kavlan-18": "2001:660:4406:8a0:704:0::19",
+      "kavlan-2": "2001:660:4406:781:4:0::19",
+      "kavlan-20": "2001:660:4406:3a0:704:0::19",
+      "kavlan-21": "2001:660:4406:6a0:704:0::19",
+      "kavlan-3": "2001:660:4406:782:4:0::19",
+      "kavlan-4": "2001:660:4406:790:4:0::19",
+      "kavlan-5": "2001:660:4406:791:4:0::19",
+      "kavlan-6": "2001:660:4406:792:4:0::19",
+      "kavlan-7": "2001:660:4406:793:4:0::19",
+      "kavlan-8": "2001:660:4406:794:4:0::19",
+      "kavlan-9": "2001:660:4406:795:4:0::19"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.25",
-      "ip6": "2001:660:4406:700:4::19",
+      "ip6": "2001:660:4406:700:4:0::19",
       "kavlan": true,
       "mac": "78:e7:d1:f9:5e:29",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-28.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-28.json
index f4ab946accd..2a791ad0e5a 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-28.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::1c",
-      "kavlan-11": "2001:660:4406:1a0:704::1c",
-      "kavlan-12": "2001:660:4406:2a0:704::1c",
-      "kavlan-13": "2001:660:4406:4a0:704::1c",
-      "kavlan-14": "2001:660:4406:5a0:704::1c",
-      "kavlan-16": "2001:660:4406:7a0:704::1c",
-      "kavlan-18": "2001:660:4406:8a0:704::1c",
-      "kavlan-2": "2001:660:4406:781:4::1c",
-      "kavlan-20": "2001:660:4406:3a0:704::1c",
-      "kavlan-21": "2001:660:4406:6a0:704::1c",
-      "kavlan-3": "2001:660:4406:782:4::1c",
-      "kavlan-4": "2001:660:4406:790:4::1c",
-      "kavlan-5": "2001:660:4406:791:4::1c",
-      "kavlan-6": "2001:660:4406:792:4::1c",
-      "kavlan-7": "2001:660:4406:793:4::1c",
-      "kavlan-8": "2001:660:4406:794:4::1c",
-      "kavlan-9": "2001:660:4406:795:4::1c"
+      "kavlan-1": "2001:660:4406:780:4:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:704:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:704:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:704:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:704:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:704:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:704:0::1c",
+      "kavlan-2": "2001:660:4406:781:4:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:704:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:704:0::1c",
+      "kavlan-3": "2001:660:4406:782:4:0::1c",
+      "kavlan-4": "2001:660:4406:790:4:0::1c",
+      "kavlan-5": "2001:660:4406:791:4:0::1c",
+      "kavlan-6": "2001:660:4406:792:4:0::1c",
+      "kavlan-7": "2001:660:4406:793:4:0::1c",
+      "kavlan-8": "2001:660:4406:794:4:0::1c",
+      "kavlan-9": "2001:660:4406:795:4:0::1c"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.28",
-      "ip6": "2001:660:4406:700:4::1c",
+      "ip6": "2001:660:4406:700:4:0::1c",
       "kavlan": true,
       "mac": "78:e7:d1:f9:8e:53",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-31.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-31.json
index 7b1153fab8d..cfc4dd5422d 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-31.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::1f",
-      "kavlan-11": "2001:660:4406:1a0:704::1f",
-      "kavlan-12": "2001:660:4406:2a0:704::1f",
-      "kavlan-13": "2001:660:4406:4a0:704::1f",
-      "kavlan-14": "2001:660:4406:5a0:704::1f",
-      "kavlan-16": "2001:660:4406:7a0:704::1f",
-      "kavlan-18": "2001:660:4406:8a0:704::1f",
-      "kavlan-2": "2001:660:4406:781:4::1f",
-      "kavlan-20": "2001:660:4406:3a0:704::1f",
-      "kavlan-21": "2001:660:4406:6a0:704::1f",
-      "kavlan-3": "2001:660:4406:782:4::1f",
-      "kavlan-4": "2001:660:4406:790:4::1f",
-      "kavlan-5": "2001:660:4406:791:4::1f",
-      "kavlan-6": "2001:660:4406:792:4::1f",
-      "kavlan-7": "2001:660:4406:793:4::1f",
-      "kavlan-8": "2001:660:4406:794:4::1f",
-      "kavlan-9": "2001:660:4406:795:4::1f"
+      "kavlan-1": "2001:660:4406:780:4:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:704:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:704:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:704:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:704:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:704:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:704:0::1f",
+      "kavlan-2": "2001:660:4406:781:4:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:704:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:704:0::1f",
+      "kavlan-3": "2001:660:4406:782:4:0::1f",
+      "kavlan-4": "2001:660:4406:790:4:0::1f",
+      "kavlan-5": "2001:660:4406:791:4:0::1f",
+      "kavlan-6": "2001:660:4406:792:4:0::1f",
+      "kavlan-7": "2001:660:4406:793:4:0::1f",
+      "kavlan-8": "2001:660:4406:794:4:0::1f",
+      "kavlan-9": "2001:660:4406:795:4:0::1f"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.31",
-      "ip6": "2001:660:4406:700:4::1f",
+      "ip6": "2001:660:4406:700:4:0::1f",
       "kavlan": true,
       "mac": "78:e7:d1:f9:be:39",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-32.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-32.json
index 84a9d0a74d8..bbedab8a896 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-32.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::20",
-      "kavlan-11": "2001:660:4406:1a0:704::20",
-      "kavlan-12": "2001:660:4406:2a0:704::20",
-      "kavlan-13": "2001:660:4406:4a0:704::20",
-      "kavlan-14": "2001:660:4406:5a0:704::20",
-      "kavlan-16": "2001:660:4406:7a0:704::20",
-      "kavlan-18": "2001:660:4406:8a0:704::20",
-      "kavlan-2": "2001:660:4406:781:4::20",
-      "kavlan-20": "2001:660:4406:3a0:704::20",
-      "kavlan-21": "2001:660:4406:6a0:704::20",
-      "kavlan-3": "2001:660:4406:782:4::20",
-      "kavlan-4": "2001:660:4406:790:4::20",
-      "kavlan-5": "2001:660:4406:791:4::20",
-      "kavlan-6": "2001:660:4406:792:4::20",
-      "kavlan-7": "2001:660:4406:793:4::20",
-      "kavlan-8": "2001:660:4406:794:4::20",
-      "kavlan-9": "2001:660:4406:795:4::20"
+      "kavlan-1": "2001:660:4406:780:4:0::20",
+      "kavlan-11": "2001:660:4406:1a0:704:0::20",
+      "kavlan-12": "2001:660:4406:2a0:704:0::20",
+      "kavlan-13": "2001:660:4406:4a0:704:0::20",
+      "kavlan-14": "2001:660:4406:5a0:704:0::20",
+      "kavlan-16": "2001:660:4406:7a0:704:0::20",
+      "kavlan-18": "2001:660:4406:8a0:704:0::20",
+      "kavlan-2": "2001:660:4406:781:4:0::20",
+      "kavlan-20": "2001:660:4406:3a0:704:0::20",
+      "kavlan-21": "2001:660:4406:6a0:704:0::20",
+      "kavlan-3": "2001:660:4406:782:4:0::20",
+      "kavlan-4": "2001:660:4406:790:4:0::20",
+      "kavlan-5": "2001:660:4406:791:4:0::20",
+      "kavlan-6": "2001:660:4406:792:4:0::20",
+      "kavlan-7": "2001:660:4406:793:4:0::20",
+      "kavlan-8": "2001:660:4406:794:4:0::20",
+      "kavlan-9": "2001:660:4406:795:4:0::20"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.32",
-      "ip6": "2001:660:4406:700:4::20",
+      "ip6": "2001:660:4406:700:4:0::20",
       "kavlan": true,
       "mac": "d8:d3:85:e6:a5:6d",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-35.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-35.json
index c23ee63176b..78345794f26 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-35.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-35.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::23",
-      "kavlan-11": "2001:660:4406:1a0:704::23",
-      "kavlan-12": "2001:660:4406:2a0:704::23",
-      "kavlan-13": "2001:660:4406:4a0:704::23",
-      "kavlan-14": "2001:660:4406:5a0:704::23",
-      "kavlan-16": "2001:660:4406:7a0:704::23",
-      "kavlan-18": "2001:660:4406:8a0:704::23",
-      "kavlan-2": "2001:660:4406:781:4::23",
-      "kavlan-20": "2001:660:4406:3a0:704::23",
-      "kavlan-21": "2001:660:4406:6a0:704::23",
-      "kavlan-3": "2001:660:4406:782:4::23",
-      "kavlan-4": "2001:660:4406:790:4::23",
-      "kavlan-5": "2001:660:4406:791:4::23",
-      "kavlan-6": "2001:660:4406:792:4::23",
-      "kavlan-7": "2001:660:4406:793:4::23",
-      "kavlan-8": "2001:660:4406:794:4::23",
-      "kavlan-9": "2001:660:4406:795:4::23"
+      "kavlan-1": "2001:660:4406:780:4:0::23",
+      "kavlan-11": "2001:660:4406:1a0:704:0::23",
+      "kavlan-12": "2001:660:4406:2a0:704:0::23",
+      "kavlan-13": "2001:660:4406:4a0:704:0::23",
+      "kavlan-14": "2001:660:4406:5a0:704:0::23",
+      "kavlan-16": "2001:660:4406:7a0:704:0::23",
+      "kavlan-18": "2001:660:4406:8a0:704:0::23",
+      "kavlan-2": "2001:660:4406:781:4:0::23",
+      "kavlan-20": "2001:660:4406:3a0:704:0::23",
+      "kavlan-21": "2001:660:4406:6a0:704:0::23",
+      "kavlan-3": "2001:660:4406:782:4:0::23",
+      "kavlan-4": "2001:660:4406:790:4:0::23",
+      "kavlan-5": "2001:660:4406:791:4:0::23",
+      "kavlan-6": "2001:660:4406:792:4:0::23",
+      "kavlan-7": "2001:660:4406:793:4:0::23",
+      "kavlan-8": "2001:660:4406:794:4:0::23",
+      "kavlan-9": "2001:660:4406:795:4:0::23"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.35",
-      "ip6": "2001:660:4406:700:4::23",
+      "ip6": "2001:660:4406:700:4:0::23",
       "kavlan": true,
       "mac": "78:e7:d1:f9:ae:21",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-38.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-38.json
index 060e9d8eef9..455f5c51965 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-38.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-38.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::26",
-      "kavlan-11": "2001:660:4406:1a0:704::26",
-      "kavlan-12": "2001:660:4406:2a0:704::26",
-      "kavlan-13": "2001:660:4406:4a0:704::26",
-      "kavlan-14": "2001:660:4406:5a0:704::26",
-      "kavlan-16": "2001:660:4406:7a0:704::26",
-      "kavlan-18": "2001:660:4406:8a0:704::26",
-      "kavlan-2": "2001:660:4406:781:4::26",
-      "kavlan-20": "2001:660:4406:3a0:704::26",
-      "kavlan-21": "2001:660:4406:6a0:704::26",
-      "kavlan-3": "2001:660:4406:782:4::26",
-      "kavlan-4": "2001:660:4406:790:4::26",
-      "kavlan-5": "2001:660:4406:791:4::26",
-      "kavlan-6": "2001:660:4406:792:4::26",
-      "kavlan-7": "2001:660:4406:793:4::26",
-      "kavlan-8": "2001:660:4406:794:4::26",
-      "kavlan-9": "2001:660:4406:795:4::26"
+      "kavlan-1": "2001:660:4406:780:4:0::26",
+      "kavlan-11": "2001:660:4406:1a0:704:0::26",
+      "kavlan-12": "2001:660:4406:2a0:704:0::26",
+      "kavlan-13": "2001:660:4406:4a0:704:0::26",
+      "kavlan-14": "2001:660:4406:5a0:704:0::26",
+      "kavlan-16": "2001:660:4406:7a0:704:0::26",
+      "kavlan-18": "2001:660:4406:8a0:704:0::26",
+      "kavlan-2": "2001:660:4406:781:4:0::26",
+      "kavlan-20": "2001:660:4406:3a0:704:0::26",
+      "kavlan-21": "2001:660:4406:6a0:704:0::26",
+      "kavlan-3": "2001:660:4406:782:4:0::26",
+      "kavlan-4": "2001:660:4406:790:4:0::26",
+      "kavlan-5": "2001:660:4406:791:4:0::26",
+      "kavlan-6": "2001:660:4406:792:4:0::26",
+      "kavlan-7": "2001:660:4406:793:4:0::26",
+      "kavlan-8": "2001:660:4406:794:4:0::26",
+      "kavlan-9": "2001:660:4406:795:4:0::26"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.38",
-      "ip6": "2001:660:4406:700:4::26",
+      "ip6": "2001:660:4406:700:4:0::26",
       "kavlan": true,
       "mac": "78:e7:d1:f5:3f:5b",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-9.json b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-9.json
index 0dd3db1ac6f..559fd9258e3 100644
--- a/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-9.json
+++ b/data/grid5000/sites/rennes/clusters/parapluie/nodes/parapluie-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth1": {
-      "kavlan-1": "2001:660:4406:780:4::9",
-      "kavlan-11": "2001:660:4406:1a0:704::9",
-      "kavlan-12": "2001:660:4406:2a0:704::9",
-      "kavlan-13": "2001:660:4406:4a0:704::9",
-      "kavlan-14": "2001:660:4406:5a0:704::9",
-      "kavlan-16": "2001:660:4406:7a0:704::9",
-      "kavlan-18": "2001:660:4406:8a0:704::9",
-      "kavlan-2": "2001:660:4406:781:4::9",
-      "kavlan-20": "2001:660:4406:3a0:704::9",
-      "kavlan-21": "2001:660:4406:6a0:704::9",
-      "kavlan-3": "2001:660:4406:782:4::9",
-      "kavlan-4": "2001:660:4406:790:4::9",
-      "kavlan-5": "2001:660:4406:791:4::9",
-      "kavlan-6": "2001:660:4406:792:4::9",
-      "kavlan-7": "2001:660:4406:793:4::9",
-      "kavlan-8": "2001:660:4406:794:4::9",
-      "kavlan-9": "2001:660:4406:795:4::9"
+      "kavlan-1": "2001:660:4406:780:4:0::9",
+      "kavlan-11": "2001:660:4406:1a0:704:0::9",
+      "kavlan-12": "2001:660:4406:2a0:704:0::9",
+      "kavlan-13": "2001:660:4406:4a0:704:0::9",
+      "kavlan-14": "2001:660:4406:5a0:704:0::9",
+      "kavlan-16": "2001:660:4406:7a0:704:0::9",
+      "kavlan-18": "2001:660:4406:8a0:704:0::9",
+      "kavlan-2": "2001:660:4406:781:4:0::9",
+      "kavlan-20": "2001:660:4406:3a0:704:0::9",
+      "kavlan-21": "2001:660:4406:6a0:704:0::9",
+      "kavlan-3": "2001:660:4406:782:4:0::9",
+      "kavlan-4": "2001:660:4406:790:4:0::9",
+      "kavlan-5": "2001:660:4406:791:4:0::9",
+      "kavlan-6": "2001:660:4406:792:4:0::9",
+      "kavlan-7": "2001:660:4406:793:4:0::9",
+      "kavlan-8": "2001:660:4406:794:4:0::9",
+      "kavlan-9": "2001:660:4406:795:4:0::9"
     }
   },
   "main_memory": {
@@ -93,7 +93,7 @@
       "firmware_version": "1.8.2",
       "interface": "Ethernet",
       "ip": "172.16.99.9",
-      "ip6": "2001:660:4406:700:4::9",
+      "ip6": "2001:660:4406:700:4:0::9",
       "kavlan": true,
       "mac": "78:e7:d1:f9:8e:f7",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-1.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-1.json
index 116a0768da1..9e27bb6d1a8 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-1.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-1.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::1",
-      "kavlan-11": "2001:660:4406:1a0:702::1",
-      "kavlan-12": "2001:660:4406:2a0:702::1",
-      "kavlan-13": "2001:660:4406:4a0:702::1",
-      "kavlan-14": "2001:660:4406:5a0:702::1",
-      "kavlan-16": "2001:660:4406:7a0:702::1",
-      "kavlan-18": "2001:660:4406:8a0:702::1",
-      "kavlan-2": "2001:660:4406:781:2::1",
-      "kavlan-20": "2001:660:4406:3a0:702::1",
-      "kavlan-21": "2001:660:4406:6a0:702::1",
-      "kavlan-3": "2001:660:4406:782:2::1",
-      "kavlan-4": "2001:660:4406:790:2::1",
-      "kavlan-5": "2001:660:4406:791:2::1",
-      "kavlan-6": "2001:660:4406:792:2::1",
-      "kavlan-7": "2001:660:4406:793:2::1",
-      "kavlan-8": "2001:660:4406:794:2::1",
-      "kavlan-9": "2001:660:4406:795:2::1"
+      "kavlan-1": "2001:660:4406:780:2:0::1",
+      "kavlan-11": "2001:660:4406:1a0:702:0::1",
+      "kavlan-12": "2001:660:4406:2a0:702:0::1",
+      "kavlan-13": "2001:660:4406:4a0:702:0::1",
+      "kavlan-14": "2001:660:4406:5a0:702:0::1",
+      "kavlan-16": "2001:660:4406:7a0:702:0::1",
+      "kavlan-18": "2001:660:4406:8a0:702:0::1",
+      "kavlan-2": "2001:660:4406:781:2:0::1",
+      "kavlan-20": "2001:660:4406:3a0:702:0::1",
+      "kavlan-21": "2001:660:4406:6a0:702:0::1",
+      "kavlan-3": "2001:660:4406:782:2:0::1",
+      "kavlan-4": "2001:660:4406:790:2:0::1",
+      "kavlan-5": "2001:660:4406:791:2:0::1",
+      "kavlan-6": "2001:660:4406:792:2:0::1",
+      "kavlan-7": "2001:660:4406:793:2:0::1",
+      "kavlan-8": "2001:660:4406:794:2:0::1",
+      "kavlan-9": "2001:660:4406:795:2:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::1",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.1",
-      "ip6": "2001:660:4406:700:2::1",
+      "ip6": "2001:660:4406:700:2:0::1",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f9:d8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-10.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-10.json
index 692377d5d11..a9a791f548e 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-10.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-10.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::a",
-      "kavlan-11": "2001:660:4406:1a0:702::a",
-      "kavlan-12": "2001:660:4406:2a0:702::a",
-      "kavlan-13": "2001:660:4406:4a0:702::a",
-      "kavlan-14": "2001:660:4406:5a0:702::a",
-      "kavlan-16": "2001:660:4406:7a0:702::a",
-      "kavlan-18": "2001:660:4406:8a0:702::a",
-      "kavlan-2": "2001:660:4406:781:2::a",
-      "kavlan-20": "2001:660:4406:3a0:702::a",
-      "kavlan-21": "2001:660:4406:6a0:702::a",
-      "kavlan-3": "2001:660:4406:782:2::a",
-      "kavlan-4": "2001:660:4406:790:2::a",
-      "kavlan-5": "2001:660:4406:791:2::a",
-      "kavlan-6": "2001:660:4406:792:2::a",
-      "kavlan-7": "2001:660:4406:793:2::a",
-      "kavlan-8": "2001:660:4406:794:2::a",
-      "kavlan-9": "2001:660:4406:795:2::a"
+      "kavlan-1": "2001:660:4406:780:2:0::a",
+      "kavlan-11": "2001:660:4406:1a0:702:0::a",
+      "kavlan-12": "2001:660:4406:2a0:702:0::a",
+      "kavlan-13": "2001:660:4406:4a0:702:0::a",
+      "kavlan-14": "2001:660:4406:5a0:702:0::a",
+      "kavlan-16": "2001:660:4406:7a0:702:0::a",
+      "kavlan-18": "2001:660:4406:8a0:702:0::a",
+      "kavlan-2": "2001:660:4406:781:2:0::a",
+      "kavlan-20": "2001:660:4406:3a0:702:0::a",
+      "kavlan-21": "2001:660:4406:6a0:702:0::a",
+      "kavlan-3": "2001:660:4406:782:2:0::a",
+      "kavlan-4": "2001:660:4406:790:2:0::a",
+      "kavlan-5": "2001:660:4406:791:2:0::a",
+      "kavlan-6": "2001:660:4406:792:2:0::a",
+      "kavlan-7": "2001:660:4406:793:2:0::a",
+      "kavlan-8": "2001:660:4406:794:2:0::a",
+      "kavlan-9": "2001:660:4406:795:2:0::a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::a",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.10",
-      "ip6": "2001:660:4406:700:2::a",
+      "ip6": "2001:660:4406:700:2:0::a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:48",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-11.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-11.json
index 7285b05b338..5c013d0258f 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-11.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-11.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::b",
-      "kavlan-11": "2001:660:4406:1a0:702::b",
-      "kavlan-12": "2001:660:4406:2a0:702::b",
-      "kavlan-13": "2001:660:4406:4a0:702::b",
-      "kavlan-14": "2001:660:4406:5a0:702::b",
-      "kavlan-16": "2001:660:4406:7a0:702::b",
-      "kavlan-18": "2001:660:4406:8a0:702::b",
-      "kavlan-2": "2001:660:4406:781:2::b",
-      "kavlan-20": "2001:660:4406:3a0:702::b",
-      "kavlan-21": "2001:660:4406:6a0:702::b",
-      "kavlan-3": "2001:660:4406:782:2::b",
-      "kavlan-4": "2001:660:4406:790:2::b",
-      "kavlan-5": "2001:660:4406:791:2::b",
-      "kavlan-6": "2001:660:4406:792:2::b",
-      "kavlan-7": "2001:660:4406:793:2::b",
-      "kavlan-8": "2001:660:4406:794:2::b",
-      "kavlan-9": "2001:660:4406:795:2::b"
+      "kavlan-1": "2001:660:4406:780:2:0::b",
+      "kavlan-11": "2001:660:4406:1a0:702:0::b",
+      "kavlan-12": "2001:660:4406:2a0:702:0::b",
+      "kavlan-13": "2001:660:4406:4a0:702:0::b",
+      "kavlan-14": "2001:660:4406:5a0:702:0::b",
+      "kavlan-16": "2001:660:4406:7a0:702:0::b",
+      "kavlan-18": "2001:660:4406:8a0:702:0::b",
+      "kavlan-2": "2001:660:4406:781:2:0::b",
+      "kavlan-20": "2001:660:4406:3a0:702:0::b",
+      "kavlan-21": "2001:660:4406:6a0:702:0::b",
+      "kavlan-3": "2001:660:4406:782:2:0::b",
+      "kavlan-4": "2001:660:4406:790:2:0::b",
+      "kavlan-5": "2001:660:4406:791:2:0::b",
+      "kavlan-6": "2001:660:4406:792:2:0::b",
+      "kavlan-7": "2001:660:4406:793:2:0::b",
+      "kavlan-8": "2001:660:4406:794:2:0::b",
+      "kavlan-9": "2001:660:4406:795:2:0::b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::b",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.11",
-      "ip6": "2001:660:4406:700:2::b",
+      "ip6": "2001:660:4406:700:2:0::b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:10",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-12.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-12.json
index d6b9cc27146..602ad610fab 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-12.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-12.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::c",
-      "kavlan-11": "2001:660:4406:1a0:702::c",
-      "kavlan-12": "2001:660:4406:2a0:702::c",
-      "kavlan-13": "2001:660:4406:4a0:702::c",
-      "kavlan-14": "2001:660:4406:5a0:702::c",
-      "kavlan-16": "2001:660:4406:7a0:702::c",
-      "kavlan-18": "2001:660:4406:8a0:702::c",
-      "kavlan-2": "2001:660:4406:781:2::c",
-      "kavlan-20": "2001:660:4406:3a0:702::c",
-      "kavlan-21": "2001:660:4406:6a0:702::c",
-      "kavlan-3": "2001:660:4406:782:2::c",
-      "kavlan-4": "2001:660:4406:790:2::c",
-      "kavlan-5": "2001:660:4406:791:2::c",
-      "kavlan-6": "2001:660:4406:792:2::c",
-      "kavlan-7": "2001:660:4406:793:2::c",
-      "kavlan-8": "2001:660:4406:794:2::c",
-      "kavlan-9": "2001:660:4406:795:2::c"
+      "kavlan-1": "2001:660:4406:780:2:0::c",
+      "kavlan-11": "2001:660:4406:1a0:702:0::c",
+      "kavlan-12": "2001:660:4406:2a0:702:0::c",
+      "kavlan-13": "2001:660:4406:4a0:702:0::c",
+      "kavlan-14": "2001:660:4406:5a0:702:0::c",
+      "kavlan-16": "2001:660:4406:7a0:702:0::c",
+      "kavlan-18": "2001:660:4406:8a0:702:0::c",
+      "kavlan-2": "2001:660:4406:781:2:0::c",
+      "kavlan-20": "2001:660:4406:3a0:702:0::c",
+      "kavlan-21": "2001:660:4406:6a0:702:0::c",
+      "kavlan-3": "2001:660:4406:782:2:0::c",
+      "kavlan-4": "2001:660:4406:790:2:0::c",
+      "kavlan-5": "2001:660:4406:791:2:0::c",
+      "kavlan-6": "2001:660:4406:792:2:0::c",
+      "kavlan-7": "2001:660:4406:793:2:0::c",
+      "kavlan-8": "2001:660:4406:794:2:0::c",
+      "kavlan-9": "2001:660:4406:795:2:0::c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::c",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.12",
-      "ip6": "2001:660:4406:700:2::c",
+      "ip6": "2001:660:4406:700:2:0::c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f1:48",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-13.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-13.json
index c085702c2a6..59e968bee6b 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-13.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-13.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::d",
-      "kavlan-11": "2001:660:4406:1a0:702::d",
-      "kavlan-12": "2001:660:4406:2a0:702::d",
-      "kavlan-13": "2001:660:4406:4a0:702::d",
-      "kavlan-14": "2001:660:4406:5a0:702::d",
-      "kavlan-16": "2001:660:4406:7a0:702::d",
-      "kavlan-18": "2001:660:4406:8a0:702::d",
-      "kavlan-2": "2001:660:4406:781:2::d",
-      "kavlan-20": "2001:660:4406:3a0:702::d",
-      "kavlan-21": "2001:660:4406:6a0:702::d",
-      "kavlan-3": "2001:660:4406:782:2::d",
-      "kavlan-4": "2001:660:4406:790:2::d",
-      "kavlan-5": "2001:660:4406:791:2::d",
-      "kavlan-6": "2001:660:4406:792:2::d",
-      "kavlan-7": "2001:660:4406:793:2::d",
-      "kavlan-8": "2001:660:4406:794:2::d",
-      "kavlan-9": "2001:660:4406:795:2::d"
+      "kavlan-1": "2001:660:4406:780:2:0::d",
+      "kavlan-11": "2001:660:4406:1a0:702:0::d",
+      "kavlan-12": "2001:660:4406:2a0:702:0::d",
+      "kavlan-13": "2001:660:4406:4a0:702:0::d",
+      "kavlan-14": "2001:660:4406:5a0:702:0::d",
+      "kavlan-16": "2001:660:4406:7a0:702:0::d",
+      "kavlan-18": "2001:660:4406:8a0:702:0::d",
+      "kavlan-2": "2001:660:4406:781:2:0::d",
+      "kavlan-20": "2001:660:4406:3a0:702:0::d",
+      "kavlan-21": "2001:660:4406:6a0:702:0::d",
+      "kavlan-3": "2001:660:4406:782:2:0::d",
+      "kavlan-4": "2001:660:4406:790:2:0::d",
+      "kavlan-5": "2001:660:4406:791:2:0::d",
+      "kavlan-6": "2001:660:4406:792:2:0::d",
+      "kavlan-7": "2001:660:4406:793:2:0::d",
+      "kavlan-8": "2001:660:4406:794:2:0::d",
+      "kavlan-9": "2001:660:4406:795:2:0::d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::d",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.13",
-      "ip6": "2001:660:4406:700:2::d",
+      "ip6": "2001:660:4406:700:2:0::d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:f8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-14.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-14.json
index 4d5f72e9b26..0d5f36a433b 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-14.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-14.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::e",
-      "kavlan-11": "2001:660:4406:1a0:702::e",
-      "kavlan-12": "2001:660:4406:2a0:702::e",
-      "kavlan-13": "2001:660:4406:4a0:702::e",
-      "kavlan-14": "2001:660:4406:5a0:702::e",
-      "kavlan-16": "2001:660:4406:7a0:702::e",
-      "kavlan-18": "2001:660:4406:8a0:702::e",
-      "kavlan-2": "2001:660:4406:781:2::e",
-      "kavlan-20": "2001:660:4406:3a0:702::e",
-      "kavlan-21": "2001:660:4406:6a0:702::e",
-      "kavlan-3": "2001:660:4406:782:2::e",
-      "kavlan-4": "2001:660:4406:790:2::e",
-      "kavlan-5": "2001:660:4406:791:2::e",
-      "kavlan-6": "2001:660:4406:792:2::e",
-      "kavlan-7": "2001:660:4406:793:2::e",
-      "kavlan-8": "2001:660:4406:794:2::e",
-      "kavlan-9": "2001:660:4406:795:2::e"
+      "kavlan-1": "2001:660:4406:780:2:0::e",
+      "kavlan-11": "2001:660:4406:1a0:702:0::e",
+      "kavlan-12": "2001:660:4406:2a0:702:0::e",
+      "kavlan-13": "2001:660:4406:4a0:702:0::e",
+      "kavlan-14": "2001:660:4406:5a0:702:0::e",
+      "kavlan-16": "2001:660:4406:7a0:702:0::e",
+      "kavlan-18": "2001:660:4406:8a0:702:0::e",
+      "kavlan-2": "2001:660:4406:781:2:0::e",
+      "kavlan-20": "2001:660:4406:3a0:702:0::e",
+      "kavlan-21": "2001:660:4406:6a0:702:0::e",
+      "kavlan-3": "2001:660:4406:782:2:0::e",
+      "kavlan-4": "2001:660:4406:790:2:0::e",
+      "kavlan-5": "2001:660:4406:791:2:0::e",
+      "kavlan-6": "2001:660:4406:792:2:0::e",
+      "kavlan-7": "2001:660:4406:793:2:0::e",
+      "kavlan-8": "2001:660:4406:794:2:0::e",
+      "kavlan-9": "2001:660:4406:795:2:0::e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::e",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.14",
-      "ip6": "2001:660:4406:700:2::e",
+      "ip6": "2001:660:4406:700:2:0::e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:05:90",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-15.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-15.json
index 4ae988842dd..900e5b71eb7 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-15.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-15.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::f",
-      "kavlan-11": "2001:660:4406:1a0:702::f",
-      "kavlan-12": "2001:660:4406:2a0:702::f",
-      "kavlan-13": "2001:660:4406:4a0:702::f",
-      "kavlan-14": "2001:660:4406:5a0:702::f",
-      "kavlan-16": "2001:660:4406:7a0:702::f",
-      "kavlan-18": "2001:660:4406:8a0:702::f",
-      "kavlan-2": "2001:660:4406:781:2::f",
-      "kavlan-20": "2001:660:4406:3a0:702::f",
-      "kavlan-21": "2001:660:4406:6a0:702::f",
-      "kavlan-3": "2001:660:4406:782:2::f",
-      "kavlan-4": "2001:660:4406:790:2::f",
-      "kavlan-5": "2001:660:4406:791:2::f",
-      "kavlan-6": "2001:660:4406:792:2::f",
-      "kavlan-7": "2001:660:4406:793:2::f",
-      "kavlan-8": "2001:660:4406:794:2::f",
-      "kavlan-9": "2001:660:4406:795:2::f"
+      "kavlan-1": "2001:660:4406:780:2:0::f",
+      "kavlan-11": "2001:660:4406:1a0:702:0::f",
+      "kavlan-12": "2001:660:4406:2a0:702:0::f",
+      "kavlan-13": "2001:660:4406:4a0:702:0::f",
+      "kavlan-14": "2001:660:4406:5a0:702:0::f",
+      "kavlan-16": "2001:660:4406:7a0:702:0::f",
+      "kavlan-18": "2001:660:4406:8a0:702:0::f",
+      "kavlan-2": "2001:660:4406:781:2:0::f",
+      "kavlan-20": "2001:660:4406:3a0:702:0::f",
+      "kavlan-21": "2001:660:4406:6a0:702:0::f",
+      "kavlan-3": "2001:660:4406:782:2:0::f",
+      "kavlan-4": "2001:660:4406:790:2:0::f",
+      "kavlan-5": "2001:660:4406:791:2:0::f",
+      "kavlan-6": "2001:660:4406:792:2:0::f",
+      "kavlan-7": "2001:660:4406:793:2:0::f",
+      "kavlan-8": "2001:660:4406:794:2:0::f",
+      "kavlan-9": "2001:660:4406:795:2:0::f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::f",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.15",
-      "ip6": "2001:660:4406:700:2::f",
+      "ip6": "2001:660:4406:700:2:0::f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:25:90",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-16.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-16.json
index 12e9274a6ff..0a4888a31b7 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-16.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-16.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::10",
-      "kavlan-11": "2001:660:4406:1a0:702::10",
-      "kavlan-12": "2001:660:4406:2a0:702::10",
-      "kavlan-13": "2001:660:4406:4a0:702::10",
-      "kavlan-14": "2001:660:4406:5a0:702::10",
-      "kavlan-16": "2001:660:4406:7a0:702::10",
-      "kavlan-18": "2001:660:4406:8a0:702::10",
-      "kavlan-2": "2001:660:4406:781:2::10",
-      "kavlan-20": "2001:660:4406:3a0:702::10",
-      "kavlan-21": "2001:660:4406:6a0:702::10",
-      "kavlan-3": "2001:660:4406:782:2::10",
-      "kavlan-4": "2001:660:4406:790:2::10",
-      "kavlan-5": "2001:660:4406:791:2::10",
-      "kavlan-6": "2001:660:4406:792:2::10",
-      "kavlan-7": "2001:660:4406:793:2::10",
-      "kavlan-8": "2001:660:4406:794:2::10",
-      "kavlan-9": "2001:660:4406:795:2::10"
+      "kavlan-1": "2001:660:4406:780:2:0::10",
+      "kavlan-11": "2001:660:4406:1a0:702:0::10",
+      "kavlan-12": "2001:660:4406:2a0:702:0::10",
+      "kavlan-13": "2001:660:4406:4a0:702:0::10",
+      "kavlan-14": "2001:660:4406:5a0:702:0::10",
+      "kavlan-16": "2001:660:4406:7a0:702:0::10",
+      "kavlan-18": "2001:660:4406:8a0:702:0::10",
+      "kavlan-2": "2001:660:4406:781:2:0::10",
+      "kavlan-20": "2001:660:4406:3a0:702:0::10",
+      "kavlan-21": "2001:660:4406:6a0:702:0::10",
+      "kavlan-3": "2001:660:4406:782:2:0::10",
+      "kavlan-4": "2001:660:4406:790:2:0::10",
+      "kavlan-5": "2001:660:4406:791:2:0::10",
+      "kavlan-6": "2001:660:4406:792:2:0::10",
+      "kavlan-7": "2001:660:4406:793:2:0::10",
+      "kavlan-8": "2001:660:4406:794:2:0::10",
+      "kavlan-9": "2001:660:4406:795:2:0::10"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::10",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.16",
-      "ip6": "2001:660:4406:700:2::10",
+      "ip6": "2001:660:4406:700:2:0::10",
       "kavlan": true,
       "mac": "ec:f4:bb:d6:10:38",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-17.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-17.json
index ff235a24482..93e71994a14 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-17.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-17.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::11",
-      "kavlan-11": "2001:660:4406:1a0:702::11",
-      "kavlan-12": "2001:660:4406:2a0:702::11",
-      "kavlan-13": "2001:660:4406:4a0:702::11",
-      "kavlan-14": "2001:660:4406:5a0:702::11",
-      "kavlan-16": "2001:660:4406:7a0:702::11",
-      "kavlan-18": "2001:660:4406:8a0:702::11",
-      "kavlan-2": "2001:660:4406:781:2::11",
-      "kavlan-20": "2001:660:4406:3a0:702::11",
-      "kavlan-21": "2001:660:4406:6a0:702::11",
-      "kavlan-3": "2001:660:4406:782:2::11",
-      "kavlan-4": "2001:660:4406:790:2::11",
-      "kavlan-5": "2001:660:4406:791:2::11",
-      "kavlan-6": "2001:660:4406:792:2::11",
-      "kavlan-7": "2001:660:4406:793:2::11",
-      "kavlan-8": "2001:660:4406:794:2::11",
-      "kavlan-9": "2001:660:4406:795:2::11"
+      "kavlan-1": "2001:660:4406:780:2:0::11",
+      "kavlan-11": "2001:660:4406:1a0:702:0::11",
+      "kavlan-12": "2001:660:4406:2a0:702:0::11",
+      "kavlan-13": "2001:660:4406:4a0:702:0::11",
+      "kavlan-14": "2001:660:4406:5a0:702:0::11",
+      "kavlan-16": "2001:660:4406:7a0:702:0::11",
+      "kavlan-18": "2001:660:4406:8a0:702:0::11",
+      "kavlan-2": "2001:660:4406:781:2:0::11",
+      "kavlan-20": "2001:660:4406:3a0:702:0::11",
+      "kavlan-21": "2001:660:4406:6a0:702:0::11",
+      "kavlan-3": "2001:660:4406:782:2:0::11",
+      "kavlan-4": "2001:660:4406:790:2:0::11",
+      "kavlan-5": "2001:660:4406:791:2:0::11",
+      "kavlan-6": "2001:660:4406:792:2:0::11",
+      "kavlan-7": "2001:660:4406:793:2:0::11",
+      "kavlan-8": "2001:660:4406:794:2:0::11",
+      "kavlan-9": "2001:660:4406:795:2:0::11"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::11",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.17",
-      "ip6": "2001:660:4406:700:2::11",
+      "ip6": "2001:660:4406:700:2:0::11",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:b8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-18.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-18.json
index 59840b8e7ef..155efab3b13 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-18.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-18.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::12",
-      "kavlan-11": "2001:660:4406:1a0:702::12",
-      "kavlan-12": "2001:660:4406:2a0:702::12",
-      "kavlan-13": "2001:660:4406:4a0:702::12",
-      "kavlan-14": "2001:660:4406:5a0:702::12",
-      "kavlan-16": "2001:660:4406:7a0:702::12",
-      "kavlan-18": "2001:660:4406:8a0:702::12",
-      "kavlan-2": "2001:660:4406:781:2::12",
-      "kavlan-20": "2001:660:4406:3a0:702::12",
-      "kavlan-21": "2001:660:4406:6a0:702::12",
-      "kavlan-3": "2001:660:4406:782:2::12",
-      "kavlan-4": "2001:660:4406:790:2::12",
-      "kavlan-5": "2001:660:4406:791:2::12",
-      "kavlan-6": "2001:660:4406:792:2::12",
-      "kavlan-7": "2001:660:4406:793:2::12",
-      "kavlan-8": "2001:660:4406:794:2::12",
-      "kavlan-9": "2001:660:4406:795:2::12"
+      "kavlan-1": "2001:660:4406:780:2:0::12",
+      "kavlan-11": "2001:660:4406:1a0:702:0::12",
+      "kavlan-12": "2001:660:4406:2a0:702:0::12",
+      "kavlan-13": "2001:660:4406:4a0:702:0::12",
+      "kavlan-14": "2001:660:4406:5a0:702:0::12",
+      "kavlan-16": "2001:660:4406:7a0:702:0::12",
+      "kavlan-18": "2001:660:4406:8a0:702:0::12",
+      "kavlan-2": "2001:660:4406:781:2:0::12",
+      "kavlan-20": "2001:660:4406:3a0:702:0::12",
+      "kavlan-21": "2001:660:4406:6a0:702:0::12",
+      "kavlan-3": "2001:660:4406:782:2:0::12",
+      "kavlan-4": "2001:660:4406:790:2:0::12",
+      "kavlan-5": "2001:660:4406:791:2:0::12",
+      "kavlan-6": "2001:660:4406:792:2:0::12",
+      "kavlan-7": "2001:660:4406:793:2:0::12",
+      "kavlan-8": "2001:660:4406:794:2:0::12",
+      "kavlan-9": "2001:660:4406:795:2:0::12"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::12",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.18",
-      "ip6": "2001:660:4406:700:2::12",
+      "ip6": "2001:660:4406:700:2:0::12",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:11:c8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-19.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-19.json
index 6c20fc01139..d36f9e0306a 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-19.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-19.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::13",
-      "kavlan-11": "2001:660:4406:1a0:702::13",
-      "kavlan-12": "2001:660:4406:2a0:702::13",
-      "kavlan-13": "2001:660:4406:4a0:702::13",
-      "kavlan-14": "2001:660:4406:5a0:702::13",
-      "kavlan-16": "2001:660:4406:7a0:702::13",
-      "kavlan-18": "2001:660:4406:8a0:702::13",
-      "kavlan-2": "2001:660:4406:781:2::13",
-      "kavlan-20": "2001:660:4406:3a0:702::13",
-      "kavlan-21": "2001:660:4406:6a0:702::13",
-      "kavlan-3": "2001:660:4406:782:2::13",
-      "kavlan-4": "2001:660:4406:790:2::13",
-      "kavlan-5": "2001:660:4406:791:2::13",
-      "kavlan-6": "2001:660:4406:792:2::13",
-      "kavlan-7": "2001:660:4406:793:2::13",
-      "kavlan-8": "2001:660:4406:794:2::13",
-      "kavlan-9": "2001:660:4406:795:2::13"
+      "kavlan-1": "2001:660:4406:780:2:0::13",
+      "kavlan-11": "2001:660:4406:1a0:702:0::13",
+      "kavlan-12": "2001:660:4406:2a0:702:0::13",
+      "kavlan-13": "2001:660:4406:4a0:702:0::13",
+      "kavlan-14": "2001:660:4406:5a0:702:0::13",
+      "kavlan-16": "2001:660:4406:7a0:702:0::13",
+      "kavlan-18": "2001:660:4406:8a0:702:0::13",
+      "kavlan-2": "2001:660:4406:781:2:0::13",
+      "kavlan-20": "2001:660:4406:3a0:702:0::13",
+      "kavlan-21": "2001:660:4406:6a0:702:0::13",
+      "kavlan-3": "2001:660:4406:782:2:0::13",
+      "kavlan-4": "2001:660:4406:790:2:0::13",
+      "kavlan-5": "2001:660:4406:791:2:0::13",
+      "kavlan-6": "2001:660:4406:792:2:0::13",
+      "kavlan-7": "2001:660:4406:793:2:0::13",
+      "kavlan-8": "2001:660:4406:794:2:0::13",
+      "kavlan-9": "2001:660:4406:795:2:0::13"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::13",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.19",
-      "ip6": "2001:660:4406:700:2::13",
+      "ip6": "2001:660:4406:700:2:0::13",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:24:88",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-2.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-2.json
index 49a210df0a5..955f7872ab7 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-2.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-2.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::2",
-      "kavlan-11": "2001:660:4406:1a0:702::2",
-      "kavlan-12": "2001:660:4406:2a0:702::2",
-      "kavlan-13": "2001:660:4406:4a0:702::2",
-      "kavlan-14": "2001:660:4406:5a0:702::2",
-      "kavlan-16": "2001:660:4406:7a0:702::2",
-      "kavlan-18": "2001:660:4406:8a0:702::2",
-      "kavlan-2": "2001:660:4406:781:2::2",
-      "kavlan-20": "2001:660:4406:3a0:702::2",
-      "kavlan-21": "2001:660:4406:6a0:702::2",
-      "kavlan-3": "2001:660:4406:782:2::2",
-      "kavlan-4": "2001:660:4406:790:2::2",
-      "kavlan-5": "2001:660:4406:791:2::2",
-      "kavlan-6": "2001:660:4406:792:2::2",
-      "kavlan-7": "2001:660:4406:793:2::2",
-      "kavlan-8": "2001:660:4406:794:2::2",
-      "kavlan-9": "2001:660:4406:795:2::2"
+      "kavlan-1": "2001:660:4406:780:2:0::2",
+      "kavlan-11": "2001:660:4406:1a0:702:0::2",
+      "kavlan-12": "2001:660:4406:2a0:702:0::2",
+      "kavlan-13": "2001:660:4406:4a0:702:0::2",
+      "kavlan-14": "2001:660:4406:5a0:702:0::2",
+      "kavlan-16": "2001:660:4406:7a0:702:0::2",
+      "kavlan-18": "2001:660:4406:8a0:702:0::2",
+      "kavlan-2": "2001:660:4406:781:2:0::2",
+      "kavlan-20": "2001:660:4406:3a0:702:0::2",
+      "kavlan-21": "2001:660:4406:6a0:702:0::2",
+      "kavlan-3": "2001:660:4406:782:2:0::2",
+      "kavlan-4": "2001:660:4406:790:2:0::2",
+      "kavlan-5": "2001:660:4406:791:2:0::2",
+      "kavlan-6": "2001:660:4406:792:2:0::2",
+      "kavlan-7": "2001:660:4406:793:2:0::2",
+      "kavlan-8": "2001:660:4406:794:2:0::2",
+      "kavlan-9": "2001:660:4406:795:2:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::2",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.2",
-      "ip6": "2001:660:4406:700:2::2",
+      "ip6": "2001:660:4406:700:2:0::2",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:50",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-20.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-20.json
index 2cab5b8757b..86d74833376 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-20.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-20.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::14",
-      "kavlan-11": "2001:660:4406:1a0:702::14",
-      "kavlan-12": "2001:660:4406:2a0:702::14",
-      "kavlan-13": "2001:660:4406:4a0:702::14",
-      "kavlan-14": "2001:660:4406:5a0:702::14",
-      "kavlan-16": "2001:660:4406:7a0:702::14",
-      "kavlan-18": "2001:660:4406:8a0:702::14",
-      "kavlan-2": "2001:660:4406:781:2::14",
-      "kavlan-20": "2001:660:4406:3a0:702::14",
-      "kavlan-21": "2001:660:4406:6a0:702::14",
-      "kavlan-3": "2001:660:4406:782:2::14",
-      "kavlan-4": "2001:660:4406:790:2::14",
-      "kavlan-5": "2001:660:4406:791:2::14",
-      "kavlan-6": "2001:660:4406:792:2::14",
-      "kavlan-7": "2001:660:4406:793:2::14",
-      "kavlan-8": "2001:660:4406:794:2::14",
-      "kavlan-9": "2001:660:4406:795:2::14"
+      "kavlan-1": "2001:660:4406:780:2:0::14",
+      "kavlan-11": "2001:660:4406:1a0:702:0::14",
+      "kavlan-12": "2001:660:4406:2a0:702:0::14",
+      "kavlan-13": "2001:660:4406:4a0:702:0::14",
+      "kavlan-14": "2001:660:4406:5a0:702:0::14",
+      "kavlan-16": "2001:660:4406:7a0:702:0::14",
+      "kavlan-18": "2001:660:4406:8a0:702:0::14",
+      "kavlan-2": "2001:660:4406:781:2:0::14",
+      "kavlan-20": "2001:660:4406:3a0:702:0::14",
+      "kavlan-21": "2001:660:4406:6a0:702:0::14",
+      "kavlan-3": "2001:660:4406:782:2:0::14",
+      "kavlan-4": "2001:660:4406:790:2:0::14",
+      "kavlan-5": "2001:660:4406:791:2:0::14",
+      "kavlan-6": "2001:660:4406:792:2:0::14",
+      "kavlan-7": "2001:660:4406:793:2:0::14",
+      "kavlan-8": "2001:660:4406:794:2:0::14",
+      "kavlan-9": "2001:660:4406:795:2:0::14"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::14",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.20",
-      "ip6": "2001:660:4406:700:2::14",
+      "ip6": "2001:660:4406:700:2:0::14",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fd:30",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-21.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-21.json
index 124e1b3a6ad..60c00c0c220 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-21.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-21.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::15",
-      "kavlan-11": "2001:660:4406:1a0:702::15",
-      "kavlan-12": "2001:660:4406:2a0:702::15",
-      "kavlan-13": "2001:660:4406:4a0:702::15",
-      "kavlan-14": "2001:660:4406:5a0:702::15",
-      "kavlan-16": "2001:660:4406:7a0:702::15",
-      "kavlan-18": "2001:660:4406:8a0:702::15",
-      "kavlan-2": "2001:660:4406:781:2::15",
-      "kavlan-20": "2001:660:4406:3a0:702::15",
-      "kavlan-21": "2001:660:4406:6a0:702::15",
-      "kavlan-3": "2001:660:4406:782:2::15",
-      "kavlan-4": "2001:660:4406:790:2::15",
-      "kavlan-5": "2001:660:4406:791:2::15",
-      "kavlan-6": "2001:660:4406:792:2::15",
-      "kavlan-7": "2001:660:4406:793:2::15",
-      "kavlan-8": "2001:660:4406:794:2::15",
-      "kavlan-9": "2001:660:4406:795:2::15"
+      "kavlan-1": "2001:660:4406:780:2:0::15",
+      "kavlan-11": "2001:660:4406:1a0:702:0::15",
+      "kavlan-12": "2001:660:4406:2a0:702:0::15",
+      "kavlan-13": "2001:660:4406:4a0:702:0::15",
+      "kavlan-14": "2001:660:4406:5a0:702:0::15",
+      "kavlan-16": "2001:660:4406:7a0:702:0::15",
+      "kavlan-18": "2001:660:4406:8a0:702:0::15",
+      "kavlan-2": "2001:660:4406:781:2:0::15",
+      "kavlan-20": "2001:660:4406:3a0:702:0::15",
+      "kavlan-21": "2001:660:4406:6a0:702:0::15",
+      "kavlan-3": "2001:660:4406:782:2:0::15",
+      "kavlan-4": "2001:660:4406:790:2:0::15",
+      "kavlan-5": "2001:660:4406:791:2:0::15",
+      "kavlan-6": "2001:660:4406:792:2:0::15",
+      "kavlan-7": "2001:660:4406:793:2:0::15",
+      "kavlan-8": "2001:660:4406:794:2:0::15",
+      "kavlan-9": "2001:660:4406:795:2:0::15"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::15",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.21",
-      "ip6": "2001:660:4406:700:2::15",
+      "ip6": "2001:660:4406:700:2:0::15",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:f8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-22.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-22.json
index 8ba870f84b9..813e85ca265 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-22.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-22.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::16",
-      "kavlan-11": "2001:660:4406:1a0:702::16",
-      "kavlan-12": "2001:660:4406:2a0:702::16",
-      "kavlan-13": "2001:660:4406:4a0:702::16",
-      "kavlan-14": "2001:660:4406:5a0:702::16",
-      "kavlan-16": "2001:660:4406:7a0:702::16",
-      "kavlan-18": "2001:660:4406:8a0:702::16",
-      "kavlan-2": "2001:660:4406:781:2::16",
-      "kavlan-20": "2001:660:4406:3a0:702::16",
-      "kavlan-21": "2001:660:4406:6a0:702::16",
-      "kavlan-3": "2001:660:4406:782:2::16",
-      "kavlan-4": "2001:660:4406:790:2::16",
-      "kavlan-5": "2001:660:4406:791:2::16",
-      "kavlan-6": "2001:660:4406:792:2::16",
-      "kavlan-7": "2001:660:4406:793:2::16",
-      "kavlan-8": "2001:660:4406:794:2::16",
-      "kavlan-9": "2001:660:4406:795:2::16"
+      "kavlan-1": "2001:660:4406:780:2:0::16",
+      "kavlan-11": "2001:660:4406:1a0:702:0::16",
+      "kavlan-12": "2001:660:4406:2a0:702:0::16",
+      "kavlan-13": "2001:660:4406:4a0:702:0::16",
+      "kavlan-14": "2001:660:4406:5a0:702:0::16",
+      "kavlan-16": "2001:660:4406:7a0:702:0::16",
+      "kavlan-18": "2001:660:4406:8a0:702:0::16",
+      "kavlan-2": "2001:660:4406:781:2:0::16",
+      "kavlan-20": "2001:660:4406:3a0:702:0::16",
+      "kavlan-21": "2001:660:4406:6a0:702:0::16",
+      "kavlan-3": "2001:660:4406:782:2:0::16",
+      "kavlan-4": "2001:660:4406:790:2:0::16",
+      "kavlan-5": "2001:660:4406:791:2:0::16",
+      "kavlan-6": "2001:660:4406:792:2:0::16",
+      "kavlan-7": "2001:660:4406:793:2:0::16",
+      "kavlan-8": "2001:660:4406:794:2:0::16",
+      "kavlan-9": "2001:660:4406:795:2:0::16"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::16",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.22",
-      "ip6": "2001:660:4406:700:2::16",
+      "ip6": "2001:660:4406:700:2:0::16",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:60",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-23.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-23.json
index dc851c16e66..c355e97a11a 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-23.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-23.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::17",
-      "kavlan-11": "2001:660:4406:1a0:702::17",
-      "kavlan-12": "2001:660:4406:2a0:702::17",
-      "kavlan-13": "2001:660:4406:4a0:702::17",
-      "kavlan-14": "2001:660:4406:5a0:702::17",
-      "kavlan-16": "2001:660:4406:7a0:702::17",
-      "kavlan-18": "2001:660:4406:8a0:702::17",
-      "kavlan-2": "2001:660:4406:781:2::17",
-      "kavlan-20": "2001:660:4406:3a0:702::17",
-      "kavlan-21": "2001:660:4406:6a0:702::17",
-      "kavlan-3": "2001:660:4406:782:2::17",
-      "kavlan-4": "2001:660:4406:790:2::17",
-      "kavlan-5": "2001:660:4406:791:2::17",
-      "kavlan-6": "2001:660:4406:792:2::17",
-      "kavlan-7": "2001:660:4406:793:2::17",
-      "kavlan-8": "2001:660:4406:794:2::17",
-      "kavlan-9": "2001:660:4406:795:2::17"
+      "kavlan-1": "2001:660:4406:780:2:0::17",
+      "kavlan-11": "2001:660:4406:1a0:702:0::17",
+      "kavlan-12": "2001:660:4406:2a0:702:0::17",
+      "kavlan-13": "2001:660:4406:4a0:702:0::17",
+      "kavlan-14": "2001:660:4406:5a0:702:0::17",
+      "kavlan-16": "2001:660:4406:7a0:702:0::17",
+      "kavlan-18": "2001:660:4406:8a0:702:0::17",
+      "kavlan-2": "2001:660:4406:781:2:0::17",
+      "kavlan-20": "2001:660:4406:3a0:702:0::17",
+      "kavlan-21": "2001:660:4406:6a0:702:0::17",
+      "kavlan-3": "2001:660:4406:782:2:0::17",
+      "kavlan-4": "2001:660:4406:790:2:0::17",
+      "kavlan-5": "2001:660:4406:791:2:0::17",
+      "kavlan-6": "2001:660:4406:792:2:0::17",
+      "kavlan-7": "2001:660:4406:793:2:0::17",
+      "kavlan-8": "2001:660:4406:794:2:0::17",
+      "kavlan-9": "2001:660:4406:795:2:0::17"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::17",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.23",
-      "ip6": "2001:660:4406:700:2::17",
+      "ip6": "2001:660:4406:700:2:0::17",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:0e:60",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-24.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-24.json
index 915f0050036..1afe5b73154 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-24.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-24.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::18",
-      "kavlan-11": "2001:660:4406:1a0:702::18",
-      "kavlan-12": "2001:660:4406:2a0:702::18",
-      "kavlan-13": "2001:660:4406:4a0:702::18",
-      "kavlan-14": "2001:660:4406:5a0:702::18",
-      "kavlan-16": "2001:660:4406:7a0:702::18",
-      "kavlan-18": "2001:660:4406:8a0:702::18",
-      "kavlan-2": "2001:660:4406:781:2::18",
-      "kavlan-20": "2001:660:4406:3a0:702::18",
-      "kavlan-21": "2001:660:4406:6a0:702::18",
-      "kavlan-3": "2001:660:4406:782:2::18",
-      "kavlan-4": "2001:660:4406:790:2::18",
-      "kavlan-5": "2001:660:4406:791:2::18",
-      "kavlan-6": "2001:660:4406:792:2::18",
-      "kavlan-7": "2001:660:4406:793:2::18",
-      "kavlan-8": "2001:660:4406:794:2::18",
-      "kavlan-9": "2001:660:4406:795:2::18"
+      "kavlan-1": "2001:660:4406:780:2:0::18",
+      "kavlan-11": "2001:660:4406:1a0:702:0::18",
+      "kavlan-12": "2001:660:4406:2a0:702:0::18",
+      "kavlan-13": "2001:660:4406:4a0:702:0::18",
+      "kavlan-14": "2001:660:4406:5a0:702:0::18",
+      "kavlan-16": "2001:660:4406:7a0:702:0::18",
+      "kavlan-18": "2001:660:4406:8a0:702:0::18",
+      "kavlan-2": "2001:660:4406:781:2:0::18",
+      "kavlan-20": "2001:660:4406:3a0:702:0::18",
+      "kavlan-21": "2001:660:4406:6a0:702:0::18",
+      "kavlan-3": "2001:660:4406:782:2:0::18",
+      "kavlan-4": "2001:660:4406:790:2:0::18",
+      "kavlan-5": "2001:660:4406:791:2:0::18",
+      "kavlan-6": "2001:660:4406:792:2:0::18",
+      "kavlan-7": "2001:660:4406:793:2:0::18",
+      "kavlan-8": "2001:660:4406:794:2:0::18",
+      "kavlan-9": "2001:660:4406:795:2:0::18"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::18",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.24",
-      "ip6": "2001:660:4406:700:2::18",
+      "ip6": "2001:660:4406:700:2:0::18",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:10:18",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-25.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-25.json
index 4cc30501bf6..df5addcfc62 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-25.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-25.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::19",
-      "kavlan-11": "2001:660:4406:1a0:702::19",
-      "kavlan-12": "2001:660:4406:2a0:702::19",
-      "kavlan-13": "2001:660:4406:4a0:702::19",
-      "kavlan-14": "2001:660:4406:5a0:702::19",
-      "kavlan-16": "2001:660:4406:7a0:702::19",
-      "kavlan-18": "2001:660:4406:8a0:702::19",
-      "kavlan-2": "2001:660:4406:781:2::19",
-      "kavlan-20": "2001:660:4406:3a0:702::19",
-      "kavlan-21": "2001:660:4406:6a0:702::19",
-      "kavlan-3": "2001:660:4406:782:2::19",
-      "kavlan-4": "2001:660:4406:790:2::19",
-      "kavlan-5": "2001:660:4406:791:2::19",
-      "kavlan-6": "2001:660:4406:792:2::19",
-      "kavlan-7": "2001:660:4406:793:2::19",
-      "kavlan-8": "2001:660:4406:794:2::19",
-      "kavlan-9": "2001:660:4406:795:2::19"
+      "kavlan-1": "2001:660:4406:780:2:0::19",
+      "kavlan-11": "2001:660:4406:1a0:702:0::19",
+      "kavlan-12": "2001:660:4406:2a0:702:0::19",
+      "kavlan-13": "2001:660:4406:4a0:702:0::19",
+      "kavlan-14": "2001:660:4406:5a0:702:0::19",
+      "kavlan-16": "2001:660:4406:7a0:702:0::19",
+      "kavlan-18": "2001:660:4406:8a0:702:0::19",
+      "kavlan-2": "2001:660:4406:781:2:0::19",
+      "kavlan-20": "2001:660:4406:3a0:702:0::19",
+      "kavlan-21": "2001:660:4406:6a0:702:0::19",
+      "kavlan-3": "2001:660:4406:782:2:0::19",
+      "kavlan-4": "2001:660:4406:790:2:0::19",
+      "kavlan-5": "2001:660:4406:791:2:0::19",
+      "kavlan-6": "2001:660:4406:792:2:0::19",
+      "kavlan-7": "2001:660:4406:793:2:0::19",
+      "kavlan-8": "2001:660:4406:794:2:0::19",
+      "kavlan-9": "2001:660:4406:795:2:0::19"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::19",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.25",
-      "ip6": "2001:660:4406:700:2::19",
+      "ip6": "2001:660:4406:700:2:0::19",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:0d:d8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-26.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-26.json
index 466473257b3..fd671a74f48 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-26.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-26.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::1a",
-      "kavlan-11": "2001:660:4406:1a0:702::1a",
-      "kavlan-12": "2001:660:4406:2a0:702::1a",
-      "kavlan-13": "2001:660:4406:4a0:702::1a",
-      "kavlan-14": "2001:660:4406:5a0:702::1a",
-      "kavlan-16": "2001:660:4406:7a0:702::1a",
-      "kavlan-18": "2001:660:4406:8a0:702::1a",
-      "kavlan-2": "2001:660:4406:781:2::1a",
-      "kavlan-20": "2001:660:4406:3a0:702::1a",
-      "kavlan-21": "2001:660:4406:6a0:702::1a",
-      "kavlan-3": "2001:660:4406:782:2::1a",
-      "kavlan-4": "2001:660:4406:790:2::1a",
-      "kavlan-5": "2001:660:4406:791:2::1a",
-      "kavlan-6": "2001:660:4406:792:2::1a",
-      "kavlan-7": "2001:660:4406:793:2::1a",
-      "kavlan-8": "2001:660:4406:794:2::1a",
-      "kavlan-9": "2001:660:4406:795:2::1a"
+      "kavlan-1": "2001:660:4406:780:2:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:702:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:702:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:702:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:702:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:702:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:702:0::1a",
+      "kavlan-2": "2001:660:4406:781:2:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:702:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:702:0::1a",
+      "kavlan-3": "2001:660:4406:782:2:0::1a",
+      "kavlan-4": "2001:660:4406:790:2:0::1a",
+      "kavlan-5": "2001:660:4406:791:2:0::1a",
+      "kavlan-6": "2001:660:4406:792:2:0::1a",
+      "kavlan-7": "2001:660:4406:793:2:0::1a",
+      "kavlan-8": "2001:660:4406:794:2:0::1a",
+      "kavlan-9": "2001:660:4406:795:2:0::1a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::1a",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.26",
-      "ip6": "2001:660:4406:700:2::1a",
+      "ip6": "2001:660:4406:700:2:0::1a",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:26:08",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-27.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-27.json
index b08aafc002d..f9c2f61c110 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-27.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-27.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::1b",
-      "kavlan-11": "2001:660:4406:1a0:702::1b",
-      "kavlan-12": "2001:660:4406:2a0:702::1b",
-      "kavlan-13": "2001:660:4406:4a0:702::1b",
-      "kavlan-14": "2001:660:4406:5a0:702::1b",
-      "kavlan-16": "2001:660:4406:7a0:702::1b",
-      "kavlan-18": "2001:660:4406:8a0:702::1b",
-      "kavlan-2": "2001:660:4406:781:2::1b",
-      "kavlan-20": "2001:660:4406:3a0:702::1b",
-      "kavlan-21": "2001:660:4406:6a0:702::1b",
-      "kavlan-3": "2001:660:4406:782:2::1b",
-      "kavlan-4": "2001:660:4406:790:2::1b",
-      "kavlan-5": "2001:660:4406:791:2::1b",
-      "kavlan-6": "2001:660:4406:792:2::1b",
-      "kavlan-7": "2001:660:4406:793:2::1b",
-      "kavlan-8": "2001:660:4406:794:2::1b",
-      "kavlan-9": "2001:660:4406:795:2::1b"
+      "kavlan-1": "2001:660:4406:780:2:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:702:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:702:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:702:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:702:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:702:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:702:0::1b",
+      "kavlan-2": "2001:660:4406:781:2:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:702:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:702:0::1b",
+      "kavlan-3": "2001:660:4406:782:2:0::1b",
+      "kavlan-4": "2001:660:4406:790:2:0::1b",
+      "kavlan-5": "2001:660:4406:791:2:0::1b",
+      "kavlan-6": "2001:660:4406:792:2:0::1b",
+      "kavlan-7": "2001:660:4406:793:2:0::1b",
+      "kavlan-8": "2001:660:4406:794:2:0::1b",
+      "kavlan-9": "2001:660:4406:795:2:0::1b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::1b",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.27",
-      "ip6": "2001:660:4406:700:2::1b",
+      "ip6": "2001:660:4406:700:2:0::1b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:e8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-28.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-28.json
index 48c00357bc4..d64a9449fb3 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-28.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-28.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::1c",
-      "kavlan-11": "2001:660:4406:1a0:702::1c",
-      "kavlan-12": "2001:660:4406:2a0:702::1c",
-      "kavlan-13": "2001:660:4406:4a0:702::1c",
-      "kavlan-14": "2001:660:4406:5a0:702::1c",
-      "kavlan-16": "2001:660:4406:7a0:702::1c",
-      "kavlan-18": "2001:660:4406:8a0:702::1c",
-      "kavlan-2": "2001:660:4406:781:2::1c",
-      "kavlan-20": "2001:660:4406:3a0:702::1c",
-      "kavlan-21": "2001:660:4406:6a0:702::1c",
-      "kavlan-3": "2001:660:4406:782:2::1c",
-      "kavlan-4": "2001:660:4406:790:2::1c",
-      "kavlan-5": "2001:660:4406:791:2::1c",
-      "kavlan-6": "2001:660:4406:792:2::1c",
-      "kavlan-7": "2001:660:4406:793:2::1c",
-      "kavlan-8": "2001:660:4406:794:2::1c",
-      "kavlan-9": "2001:660:4406:795:2::1c"
+      "kavlan-1": "2001:660:4406:780:2:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:702:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:702:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:702:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:702:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:702:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:702:0::1c",
+      "kavlan-2": "2001:660:4406:781:2:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:702:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:702:0::1c",
+      "kavlan-3": "2001:660:4406:782:2:0::1c",
+      "kavlan-4": "2001:660:4406:790:2:0::1c",
+      "kavlan-5": "2001:660:4406:791:2:0::1c",
+      "kavlan-6": "2001:660:4406:792:2:0::1c",
+      "kavlan-7": "2001:660:4406:793:2:0::1c",
+      "kavlan-8": "2001:660:4406:794:2:0::1c",
+      "kavlan-9": "2001:660:4406:795:2:0::1c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::1c",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.28",
-      "ip6": "2001:660:4406:700:2::1c",
+      "ip6": "2001:660:4406:700:2:0::1c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:38",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-3.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-3.json
index 64241f97b12..875a273b426 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-3.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-3.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::3",
-      "kavlan-11": "2001:660:4406:1a0:702::3",
-      "kavlan-12": "2001:660:4406:2a0:702::3",
-      "kavlan-13": "2001:660:4406:4a0:702::3",
-      "kavlan-14": "2001:660:4406:5a0:702::3",
-      "kavlan-16": "2001:660:4406:7a0:702::3",
-      "kavlan-18": "2001:660:4406:8a0:702::3",
-      "kavlan-2": "2001:660:4406:781:2::3",
-      "kavlan-20": "2001:660:4406:3a0:702::3",
-      "kavlan-21": "2001:660:4406:6a0:702::3",
-      "kavlan-3": "2001:660:4406:782:2::3",
-      "kavlan-4": "2001:660:4406:790:2::3",
-      "kavlan-5": "2001:660:4406:791:2::3",
-      "kavlan-6": "2001:660:4406:792:2::3",
-      "kavlan-7": "2001:660:4406:793:2::3",
-      "kavlan-8": "2001:660:4406:794:2::3",
-      "kavlan-9": "2001:660:4406:795:2::3"
+      "kavlan-1": "2001:660:4406:780:2:0::3",
+      "kavlan-11": "2001:660:4406:1a0:702:0::3",
+      "kavlan-12": "2001:660:4406:2a0:702:0::3",
+      "kavlan-13": "2001:660:4406:4a0:702:0::3",
+      "kavlan-14": "2001:660:4406:5a0:702:0::3",
+      "kavlan-16": "2001:660:4406:7a0:702:0::3",
+      "kavlan-18": "2001:660:4406:8a0:702:0::3",
+      "kavlan-2": "2001:660:4406:781:2:0::3",
+      "kavlan-20": "2001:660:4406:3a0:702:0::3",
+      "kavlan-21": "2001:660:4406:6a0:702:0::3",
+      "kavlan-3": "2001:660:4406:782:2:0::3",
+      "kavlan-4": "2001:660:4406:790:2:0::3",
+      "kavlan-5": "2001:660:4406:791:2:0::3",
+      "kavlan-6": "2001:660:4406:792:2:0::3",
+      "kavlan-7": "2001:660:4406:793:2:0::3",
+      "kavlan-8": "2001:660:4406:794:2:0::3",
+      "kavlan-9": "2001:660:4406:795:2:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::3",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.3",
-      "ip6": "2001:660:4406:700:2::3",
+      "ip6": "2001:660:4406:700:2:0::3",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f3:18",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-4.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-4.json
index 035cb5670ec..8106e01c2ef 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-4.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-4.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::4",
-      "kavlan-11": "2001:660:4406:1a0:702::4",
-      "kavlan-12": "2001:660:4406:2a0:702::4",
-      "kavlan-13": "2001:660:4406:4a0:702::4",
-      "kavlan-14": "2001:660:4406:5a0:702::4",
-      "kavlan-16": "2001:660:4406:7a0:702::4",
-      "kavlan-18": "2001:660:4406:8a0:702::4",
-      "kavlan-2": "2001:660:4406:781:2::4",
-      "kavlan-20": "2001:660:4406:3a0:702::4",
-      "kavlan-21": "2001:660:4406:6a0:702::4",
-      "kavlan-3": "2001:660:4406:782:2::4",
-      "kavlan-4": "2001:660:4406:790:2::4",
-      "kavlan-5": "2001:660:4406:791:2::4",
-      "kavlan-6": "2001:660:4406:792:2::4",
-      "kavlan-7": "2001:660:4406:793:2::4",
-      "kavlan-8": "2001:660:4406:794:2::4",
-      "kavlan-9": "2001:660:4406:795:2::4"
+      "kavlan-1": "2001:660:4406:780:2:0::4",
+      "kavlan-11": "2001:660:4406:1a0:702:0::4",
+      "kavlan-12": "2001:660:4406:2a0:702:0::4",
+      "kavlan-13": "2001:660:4406:4a0:702:0::4",
+      "kavlan-14": "2001:660:4406:5a0:702:0::4",
+      "kavlan-16": "2001:660:4406:7a0:702:0::4",
+      "kavlan-18": "2001:660:4406:8a0:702:0::4",
+      "kavlan-2": "2001:660:4406:781:2:0::4",
+      "kavlan-20": "2001:660:4406:3a0:702:0::4",
+      "kavlan-21": "2001:660:4406:6a0:702:0::4",
+      "kavlan-3": "2001:660:4406:782:2:0::4",
+      "kavlan-4": "2001:660:4406:790:2:0::4",
+      "kavlan-5": "2001:660:4406:791:2:0::4",
+      "kavlan-6": "2001:660:4406:792:2:0::4",
+      "kavlan-7": "2001:660:4406:793:2:0::4",
+      "kavlan-8": "2001:660:4406:794:2:0::4",
+      "kavlan-9": "2001:660:4406:795:2:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::4",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.4",
-      "ip6": "2001:660:4406:700:2::4",
+      "ip6": "2001:660:4406:700:2:0::4",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:88",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-5.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-5.json
index 8ebf7456f1f..cb435f1ef13 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-5.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-5.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::5",
-      "kavlan-11": "2001:660:4406:1a0:702::5",
-      "kavlan-12": "2001:660:4406:2a0:702::5",
-      "kavlan-13": "2001:660:4406:4a0:702::5",
-      "kavlan-14": "2001:660:4406:5a0:702::5",
-      "kavlan-16": "2001:660:4406:7a0:702::5",
-      "kavlan-18": "2001:660:4406:8a0:702::5",
-      "kavlan-2": "2001:660:4406:781:2::5",
-      "kavlan-20": "2001:660:4406:3a0:702::5",
-      "kavlan-21": "2001:660:4406:6a0:702::5",
-      "kavlan-3": "2001:660:4406:782:2::5",
-      "kavlan-4": "2001:660:4406:790:2::5",
-      "kavlan-5": "2001:660:4406:791:2::5",
-      "kavlan-6": "2001:660:4406:792:2::5",
-      "kavlan-7": "2001:660:4406:793:2::5",
-      "kavlan-8": "2001:660:4406:794:2::5",
-      "kavlan-9": "2001:660:4406:795:2::5"
+      "kavlan-1": "2001:660:4406:780:2:0::5",
+      "kavlan-11": "2001:660:4406:1a0:702:0::5",
+      "kavlan-12": "2001:660:4406:2a0:702:0::5",
+      "kavlan-13": "2001:660:4406:4a0:702:0::5",
+      "kavlan-14": "2001:660:4406:5a0:702:0::5",
+      "kavlan-16": "2001:660:4406:7a0:702:0::5",
+      "kavlan-18": "2001:660:4406:8a0:702:0::5",
+      "kavlan-2": "2001:660:4406:781:2:0::5",
+      "kavlan-20": "2001:660:4406:3a0:702:0::5",
+      "kavlan-21": "2001:660:4406:6a0:702:0::5",
+      "kavlan-3": "2001:660:4406:782:2:0::5",
+      "kavlan-4": "2001:660:4406:790:2:0::5",
+      "kavlan-5": "2001:660:4406:791:2:0::5",
+      "kavlan-6": "2001:660:4406:792:2:0::5",
+      "kavlan-7": "2001:660:4406:793:2:0::5",
+      "kavlan-8": "2001:660:4406:794:2:0::5",
+      "kavlan-9": "2001:660:4406:795:2:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::5",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.5",
-      "ip6": "2001:660:4406:700:2::5",
+      "ip6": "2001:660:4406:700:2:0::5",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:60",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-6.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-6.json
index 69ac8fc3b07..e3de020eede 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-6.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-6.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::6",
-      "kavlan-11": "2001:660:4406:1a0:702::6",
-      "kavlan-12": "2001:660:4406:2a0:702::6",
-      "kavlan-13": "2001:660:4406:4a0:702::6",
-      "kavlan-14": "2001:660:4406:5a0:702::6",
-      "kavlan-16": "2001:660:4406:7a0:702::6",
-      "kavlan-18": "2001:660:4406:8a0:702::6",
-      "kavlan-2": "2001:660:4406:781:2::6",
-      "kavlan-20": "2001:660:4406:3a0:702::6",
-      "kavlan-21": "2001:660:4406:6a0:702::6",
-      "kavlan-3": "2001:660:4406:782:2::6",
-      "kavlan-4": "2001:660:4406:790:2::6",
-      "kavlan-5": "2001:660:4406:791:2::6",
-      "kavlan-6": "2001:660:4406:792:2::6",
-      "kavlan-7": "2001:660:4406:793:2::6",
-      "kavlan-8": "2001:660:4406:794:2::6",
-      "kavlan-9": "2001:660:4406:795:2::6"
+      "kavlan-1": "2001:660:4406:780:2:0::6",
+      "kavlan-11": "2001:660:4406:1a0:702:0::6",
+      "kavlan-12": "2001:660:4406:2a0:702:0::6",
+      "kavlan-13": "2001:660:4406:4a0:702:0::6",
+      "kavlan-14": "2001:660:4406:5a0:702:0::6",
+      "kavlan-16": "2001:660:4406:7a0:702:0::6",
+      "kavlan-18": "2001:660:4406:8a0:702:0::6",
+      "kavlan-2": "2001:660:4406:781:2:0::6",
+      "kavlan-20": "2001:660:4406:3a0:702:0::6",
+      "kavlan-21": "2001:660:4406:6a0:702:0::6",
+      "kavlan-3": "2001:660:4406:782:2:0::6",
+      "kavlan-4": "2001:660:4406:790:2:0::6",
+      "kavlan-5": "2001:660:4406:791:2:0::6",
+      "kavlan-6": "2001:660:4406:792:2:0::6",
+      "kavlan-7": "2001:660:4406:793:2:0::6",
+      "kavlan-8": "2001:660:4406:794:2:0::6",
+      "kavlan-9": "2001:660:4406:795:2:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::6",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.6",
-      "ip6": "2001:660:4406:700:2::6",
+      "ip6": "2001:660:4406:700:2:0::6",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:70",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-7.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-7.json
index 2ad684a2a9a..a22fa145246 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-7.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-7.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::7",
-      "kavlan-11": "2001:660:4406:1a0:702::7",
-      "kavlan-12": "2001:660:4406:2a0:702::7",
-      "kavlan-13": "2001:660:4406:4a0:702::7",
-      "kavlan-14": "2001:660:4406:5a0:702::7",
-      "kavlan-16": "2001:660:4406:7a0:702::7",
-      "kavlan-18": "2001:660:4406:8a0:702::7",
-      "kavlan-2": "2001:660:4406:781:2::7",
-      "kavlan-20": "2001:660:4406:3a0:702::7",
-      "kavlan-21": "2001:660:4406:6a0:702::7",
-      "kavlan-3": "2001:660:4406:782:2::7",
-      "kavlan-4": "2001:660:4406:790:2::7",
-      "kavlan-5": "2001:660:4406:791:2::7",
-      "kavlan-6": "2001:660:4406:792:2::7",
-      "kavlan-7": "2001:660:4406:793:2::7",
-      "kavlan-8": "2001:660:4406:794:2::7",
-      "kavlan-9": "2001:660:4406:795:2::7"
+      "kavlan-1": "2001:660:4406:780:2:0::7",
+      "kavlan-11": "2001:660:4406:1a0:702:0::7",
+      "kavlan-12": "2001:660:4406:2a0:702:0::7",
+      "kavlan-13": "2001:660:4406:4a0:702:0::7",
+      "kavlan-14": "2001:660:4406:5a0:702:0::7",
+      "kavlan-16": "2001:660:4406:7a0:702:0::7",
+      "kavlan-18": "2001:660:4406:8a0:702:0::7",
+      "kavlan-2": "2001:660:4406:781:2:0::7",
+      "kavlan-20": "2001:660:4406:3a0:702:0::7",
+      "kavlan-21": "2001:660:4406:6a0:702:0::7",
+      "kavlan-3": "2001:660:4406:782:2:0::7",
+      "kavlan-4": "2001:660:4406:790:2:0::7",
+      "kavlan-5": "2001:660:4406:791:2:0::7",
+      "kavlan-6": "2001:660:4406:792:2:0::7",
+      "kavlan-7": "2001:660:4406:793:2:0::7",
+      "kavlan-8": "2001:660:4406:794:2:0::7",
+      "kavlan-9": "2001:660:4406:795:2:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::7",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.7",
-      "ip6": "2001:660:4406:700:2::7",
+      "ip6": "2001:660:4406:700:2:0::7",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fc:38",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-8.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-8.json
index 3713496901e..d7db708029d 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-8.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-8.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::8",
-      "kavlan-11": "2001:660:4406:1a0:702::8",
-      "kavlan-12": "2001:660:4406:2a0:702::8",
-      "kavlan-13": "2001:660:4406:4a0:702::8",
-      "kavlan-14": "2001:660:4406:5a0:702::8",
-      "kavlan-16": "2001:660:4406:7a0:702::8",
-      "kavlan-18": "2001:660:4406:8a0:702::8",
-      "kavlan-2": "2001:660:4406:781:2::8",
-      "kavlan-20": "2001:660:4406:3a0:702::8",
-      "kavlan-21": "2001:660:4406:6a0:702::8",
-      "kavlan-3": "2001:660:4406:782:2::8",
-      "kavlan-4": "2001:660:4406:790:2::8",
-      "kavlan-5": "2001:660:4406:791:2::8",
-      "kavlan-6": "2001:660:4406:792:2::8",
-      "kavlan-7": "2001:660:4406:793:2::8",
-      "kavlan-8": "2001:660:4406:794:2::8",
-      "kavlan-9": "2001:660:4406:795:2::8"
+      "kavlan-1": "2001:660:4406:780:2:0::8",
+      "kavlan-11": "2001:660:4406:1a0:702:0::8",
+      "kavlan-12": "2001:660:4406:2a0:702:0::8",
+      "kavlan-13": "2001:660:4406:4a0:702:0::8",
+      "kavlan-14": "2001:660:4406:5a0:702:0::8",
+      "kavlan-16": "2001:660:4406:7a0:702:0::8",
+      "kavlan-18": "2001:660:4406:8a0:702:0::8",
+      "kavlan-2": "2001:660:4406:781:2:0::8",
+      "kavlan-20": "2001:660:4406:3a0:702:0::8",
+      "kavlan-21": "2001:660:4406:6a0:702:0::8",
+      "kavlan-3": "2001:660:4406:782:2:0::8",
+      "kavlan-4": "2001:660:4406:790:2:0::8",
+      "kavlan-5": "2001:660:4406:791:2:0::8",
+      "kavlan-6": "2001:660:4406:792:2:0::8",
+      "kavlan-7": "2001:660:4406:793:2:0::8",
+      "kavlan-8": "2001:660:4406:794:2:0::8",
+      "kavlan-9": "2001:660:4406:795:2:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::8",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.8",
-      "ip6": "2001:660:4406:700:2::8",
+      "ip6": "2001:660:4406:700:2:0::8",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f2:48",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-9.json b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-9.json
index 920fc259be2..6d4cca44cfd 100644
--- a/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-9.json
+++ b/data/grid5000/sites/rennes/clusters/parasilo/nodes/parasilo-9.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:2::9",
-      "kavlan-11": "2001:660:4406:1a0:702::9",
-      "kavlan-12": "2001:660:4406:2a0:702::9",
-      "kavlan-13": "2001:660:4406:4a0:702::9",
-      "kavlan-14": "2001:660:4406:5a0:702::9",
-      "kavlan-16": "2001:660:4406:7a0:702::9",
-      "kavlan-18": "2001:660:4406:8a0:702::9",
-      "kavlan-2": "2001:660:4406:781:2::9",
-      "kavlan-20": "2001:660:4406:3a0:702::9",
-      "kavlan-21": "2001:660:4406:6a0:702::9",
-      "kavlan-3": "2001:660:4406:782:2::9",
-      "kavlan-4": "2001:660:4406:790:2::9",
-      "kavlan-5": "2001:660:4406:791:2::9",
-      "kavlan-6": "2001:660:4406:792:2::9",
-      "kavlan-7": "2001:660:4406:793:2::9",
-      "kavlan-8": "2001:660:4406:794:2::9",
-      "kavlan-9": "2001:660:4406:795:2::9"
+      "kavlan-1": "2001:660:4406:780:2:0::9",
+      "kavlan-11": "2001:660:4406:1a0:702:0::9",
+      "kavlan-12": "2001:660:4406:2a0:702:0::9",
+      "kavlan-13": "2001:660:4406:4a0:702:0::9",
+      "kavlan-14": "2001:660:4406:5a0:702:0::9",
+      "kavlan-16": "2001:660:4406:7a0:702:0::9",
+      "kavlan-18": "2001:660:4406:8a0:702:0::9",
+      "kavlan-2": "2001:660:4406:781:2:0::9",
+      "kavlan-20": "2001:660:4406:3a0:702:0::9",
+      "kavlan-21": "2001:660:4406:6a0:702:0::9",
+      "kavlan-3": "2001:660:4406:782:2:0::9",
+      "kavlan-4": "2001:660:4406:790:2:0::9",
+      "kavlan-5": "2001:660:4406:791:2:0::9",
+      "kavlan-6": "2001:660:4406:792:2:0::9",
+      "kavlan-7": "2001:660:4406:793:2:0::9",
+      "kavlan-8": "2001:660:4406:794:2:0::9",
+      "kavlan-9": "2001:660:4406:795:2:0::9"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:2:1::9",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.97.9",
-      "ip6": "2001:660:4406:700:2::9",
+      "ip6": "2001:660:4406:700:2:0::9",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:b8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-1.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-1.json
index 5bb9b042cdf..db6a1a1fbfa 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-1.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-1.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::1",
-      "kavlan-11": "2001:660:4406:1a0:701::1",
-      "kavlan-12": "2001:660:4406:2a0:701::1",
-      "kavlan-13": "2001:660:4406:4a0:701::1",
-      "kavlan-14": "2001:660:4406:5a0:701::1",
-      "kavlan-16": "2001:660:4406:7a0:701::1",
-      "kavlan-18": "2001:660:4406:8a0:701::1",
-      "kavlan-2": "2001:660:4406:781:1::1",
-      "kavlan-20": "2001:660:4406:3a0:701::1",
-      "kavlan-21": "2001:660:4406:6a0:701::1",
-      "kavlan-3": "2001:660:4406:782:1::1",
-      "kavlan-4": "2001:660:4406:790:1::1",
-      "kavlan-5": "2001:660:4406:791:1::1",
-      "kavlan-6": "2001:660:4406:792:1::1",
-      "kavlan-7": "2001:660:4406:793:1::1",
-      "kavlan-8": "2001:660:4406:794:1::1",
-      "kavlan-9": "2001:660:4406:795:1::1"
+      "kavlan-1": "2001:660:4406:780:1:0::1",
+      "kavlan-11": "2001:660:4406:1a0:701:0::1",
+      "kavlan-12": "2001:660:4406:2a0:701:0::1",
+      "kavlan-13": "2001:660:4406:4a0:701:0::1",
+      "kavlan-14": "2001:660:4406:5a0:701:0::1",
+      "kavlan-16": "2001:660:4406:7a0:701:0::1",
+      "kavlan-18": "2001:660:4406:8a0:701:0::1",
+      "kavlan-2": "2001:660:4406:781:1:0::1",
+      "kavlan-20": "2001:660:4406:3a0:701:0::1",
+      "kavlan-21": "2001:660:4406:6a0:701:0::1",
+      "kavlan-3": "2001:660:4406:782:1:0::1",
+      "kavlan-4": "2001:660:4406:790:1:0::1",
+      "kavlan-5": "2001:660:4406:791:1:0::1",
+      "kavlan-6": "2001:660:4406:792:1:0::1",
+      "kavlan-7": "2001:660:4406:793:1:0::1",
+      "kavlan-8": "2001:660:4406:794:1:0::1",
+      "kavlan-9": "2001:660:4406:795:1:0::1"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::1",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.1",
-      "ip6": "2001:660:4406:700:1::1",
+      "ip6": "2001:660:4406:700:1:0::1",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:20",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-10.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-10.json
index 8e5f1af3778..9efa4c72182 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-10.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-10.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::a",
-      "kavlan-11": "2001:660:4406:1a0:701::a",
-      "kavlan-12": "2001:660:4406:2a0:701::a",
-      "kavlan-13": "2001:660:4406:4a0:701::a",
-      "kavlan-14": "2001:660:4406:5a0:701::a",
-      "kavlan-16": "2001:660:4406:7a0:701::a",
-      "kavlan-18": "2001:660:4406:8a0:701::a",
-      "kavlan-2": "2001:660:4406:781:1::a",
-      "kavlan-20": "2001:660:4406:3a0:701::a",
-      "kavlan-21": "2001:660:4406:6a0:701::a",
-      "kavlan-3": "2001:660:4406:782:1::a",
-      "kavlan-4": "2001:660:4406:790:1::a",
-      "kavlan-5": "2001:660:4406:791:1::a",
-      "kavlan-6": "2001:660:4406:792:1::a",
-      "kavlan-7": "2001:660:4406:793:1::a",
-      "kavlan-8": "2001:660:4406:794:1::a",
-      "kavlan-9": "2001:660:4406:795:1::a"
+      "kavlan-1": "2001:660:4406:780:1:0::a",
+      "kavlan-11": "2001:660:4406:1a0:701:0::a",
+      "kavlan-12": "2001:660:4406:2a0:701:0::a",
+      "kavlan-13": "2001:660:4406:4a0:701:0::a",
+      "kavlan-14": "2001:660:4406:5a0:701:0::a",
+      "kavlan-16": "2001:660:4406:7a0:701:0::a",
+      "kavlan-18": "2001:660:4406:8a0:701:0::a",
+      "kavlan-2": "2001:660:4406:781:1:0::a",
+      "kavlan-20": "2001:660:4406:3a0:701:0::a",
+      "kavlan-21": "2001:660:4406:6a0:701:0::a",
+      "kavlan-3": "2001:660:4406:782:1:0::a",
+      "kavlan-4": "2001:660:4406:790:1:0::a",
+      "kavlan-5": "2001:660:4406:791:1:0::a",
+      "kavlan-6": "2001:660:4406:792:1:0::a",
+      "kavlan-7": "2001:660:4406:793:1:0::a",
+      "kavlan-8": "2001:660:4406:794:1:0::a",
+      "kavlan-9": "2001:660:4406:795:1:0::a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::a",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.10",
-      "ip6": "2001:660:4406:700:1::a",
+      "ip6": "2001:660:4406:700:1:0::a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:b0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-11.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-11.json
index 2f6ece93a13..e7e190cdc23 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-11.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-11.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::b",
-      "kavlan-11": "2001:660:4406:1a0:701::b",
-      "kavlan-12": "2001:660:4406:2a0:701::b",
-      "kavlan-13": "2001:660:4406:4a0:701::b",
-      "kavlan-14": "2001:660:4406:5a0:701::b",
-      "kavlan-16": "2001:660:4406:7a0:701::b",
-      "kavlan-18": "2001:660:4406:8a0:701::b",
-      "kavlan-2": "2001:660:4406:781:1::b",
-      "kavlan-20": "2001:660:4406:3a0:701::b",
-      "kavlan-21": "2001:660:4406:6a0:701::b",
-      "kavlan-3": "2001:660:4406:782:1::b",
-      "kavlan-4": "2001:660:4406:790:1::b",
-      "kavlan-5": "2001:660:4406:791:1::b",
-      "kavlan-6": "2001:660:4406:792:1::b",
-      "kavlan-7": "2001:660:4406:793:1::b",
-      "kavlan-8": "2001:660:4406:794:1::b",
-      "kavlan-9": "2001:660:4406:795:1::b"
+      "kavlan-1": "2001:660:4406:780:1:0::b",
+      "kavlan-11": "2001:660:4406:1a0:701:0::b",
+      "kavlan-12": "2001:660:4406:2a0:701:0::b",
+      "kavlan-13": "2001:660:4406:4a0:701:0::b",
+      "kavlan-14": "2001:660:4406:5a0:701:0::b",
+      "kavlan-16": "2001:660:4406:7a0:701:0::b",
+      "kavlan-18": "2001:660:4406:8a0:701:0::b",
+      "kavlan-2": "2001:660:4406:781:1:0::b",
+      "kavlan-20": "2001:660:4406:3a0:701:0::b",
+      "kavlan-21": "2001:660:4406:6a0:701:0::b",
+      "kavlan-3": "2001:660:4406:782:1:0::b",
+      "kavlan-4": "2001:660:4406:790:1:0::b",
+      "kavlan-5": "2001:660:4406:791:1:0::b",
+      "kavlan-6": "2001:660:4406:792:1:0::b",
+      "kavlan-7": "2001:660:4406:793:1:0::b",
+      "kavlan-8": "2001:660:4406:794:1:0::b",
+      "kavlan-9": "2001:660:4406:795:1:0::b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::b",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.11",
-      "ip6": "2001:660:4406:700:1::b",
+      "ip6": "2001:660:4406:700:1:0::b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:48",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-12.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-12.json
index fc55a9f7636..541ad830d03 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-12.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-12.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::c",
-      "kavlan-11": "2001:660:4406:1a0:701::c",
-      "kavlan-12": "2001:660:4406:2a0:701::c",
-      "kavlan-13": "2001:660:4406:4a0:701::c",
-      "kavlan-14": "2001:660:4406:5a0:701::c",
-      "kavlan-16": "2001:660:4406:7a0:701::c",
-      "kavlan-18": "2001:660:4406:8a0:701::c",
-      "kavlan-2": "2001:660:4406:781:1::c",
-      "kavlan-20": "2001:660:4406:3a0:701::c",
-      "kavlan-21": "2001:660:4406:6a0:701::c",
-      "kavlan-3": "2001:660:4406:782:1::c",
-      "kavlan-4": "2001:660:4406:790:1::c",
-      "kavlan-5": "2001:660:4406:791:1::c",
-      "kavlan-6": "2001:660:4406:792:1::c",
-      "kavlan-7": "2001:660:4406:793:1::c",
-      "kavlan-8": "2001:660:4406:794:1::c",
-      "kavlan-9": "2001:660:4406:795:1::c"
+      "kavlan-1": "2001:660:4406:780:1:0::c",
+      "kavlan-11": "2001:660:4406:1a0:701:0::c",
+      "kavlan-12": "2001:660:4406:2a0:701:0::c",
+      "kavlan-13": "2001:660:4406:4a0:701:0::c",
+      "kavlan-14": "2001:660:4406:5a0:701:0::c",
+      "kavlan-16": "2001:660:4406:7a0:701:0::c",
+      "kavlan-18": "2001:660:4406:8a0:701:0::c",
+      "kavlan-2": "2001:660:4406:781:1:0::c",
+      "kavlan-20": "2001:660:4406:3a0:701:0::c",
+      "kavlan-21": "2001:660:4406:6a0:701:0::c",
+      "kavlan-3": "2001:660:4406:782:1:0::c",
+      "kavlan-4": "2001:660:4406:790:1:0::c",
+      "kavlan-5": "2001:660:4406:791:1:0::c",
+      "kavlan-6": "2001:660:4406:792:1:0::c",
+      "kavlan-7": "2001:660:4406:793:1:0::c",
+      "kavlan-8": "2001:660:4406:794:1:0::c",
+      "kavlan-9": "2001:660:4406:795:1:0::c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::c",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.12",
-      "ip6": "2001:660:4406:700:1::c",
+      "ip6": "2001:660:4406:700:1:0::c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:20",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-13.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-13.json
index 25f552bc53c..47432b8accd 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-13.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-13.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::d",
-      "kavlan-11": "2001:660:4406:1a0:701::d",
-      "kavlan-12": "2001:660:4406:2a0:701::d",
-      "kavlan-13": "2001:660:4406:4a0:701::d",
-      "kavlan-14": "2001:660:4406:5a0:701::d",
-      "kavlan-16": "2001:660:4406:7a0:701::d",
-      "kavlan-18": "2001:660:4406:8a0:701::d",
-      "kavlan-2": "2001:660:4406:781:1::d",
-      "kavlan-20": "2001:660:4406:3a0:701::d",
-      "kavlan-21": "2001:660:4406:6a0:701::d",
-      "kavlan-3": "2001:660:4406:782:1::d",
-      "kavlan-4": "2001:660:4406:790:1::d",
-      "kavlan-5": "2001:660:4406:791:1::d",
-      "kavlan-6": "2001:660:4406:792:1::d",
-      "kavlan-7": "2001:660:4406:793:1::d",
-      "kavlan-8": "2001:660:4406:794:1::d",
-      "kavlan-9": "2001:660:4406:795:1::d"
+      "kavlan-1": "2001:660:4406:780:1:0::d",
+      "kavlan-11": "2001:660:4406:1a0:701:0::d",
+      "kavlan-12": "2001:660:4406:2a0:701:0::d",
+      "kavlan-13": "2001:660:4406:4a0:701:0::d",
+      "kavlan-14": "2001:660:4406:5a0:701:0::d",
+      "kavlan-16": "2001:660:4406:7a0:701:0::d",
+      "kavlan-18": "2001:660:4406:8a0:701:0::d",
+      "kavlan-2": "2001:660:4406:781:1:0::d",
+      "kavlan-20": "2001:660:4406:3a0:701:0::d",
+      "kavlan-21": "2001:660:4406:6a0:701:0::d",
+      "kavlan-3": "2001:660:4406:782:1:0::d",
+      "kavlan-4": "2001:660:4406:790:1:0::d",
+      "kavlan-5": "2001:660:4406:791:1:0::d",
+      "kavlan-6": "2001:660:4406:792:1:0::d",
+      "kavlan-7": "2001:660:4406:793:1:0::d",
+      "kavlan-8": "2001:660:4406:794:1:0::d",
+      "kavlan-9": "2001:660:4406:795:1:0::d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::d",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.13",
-      "ip6": "2001:660:4406:700:1::d",
+      "ip6": "2001:660:4406:700:1:0::d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:60",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-14.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-14.json
index 229c816e57b..356df7ff34f 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-14.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-14.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::e",
-      "kavlan-11": "2001:660:4406:1a0:701::e",
-      "kavlan-12": "2001:660:4406:2a0:701::e",
-      "kavlan-13": "2001:660:4406:4a0:701::e",
-      "kavlan-14": "2001:660:4406:5a0:701::e",
-      "kavlan-16": "2001:660:4406:7a0:701::e",
-      "kavlan-18": "2001:660:4406:8a0:701::e",
-      "kavlan-2": "2001:660:4406:781:1::e",
-      "kavlan-20": "2001:660:4406:3a0:701::e",
-      "kavlan-21": "2001:660:4406:6a0:701::e",
-      "kavlan-3": "2001:660:4406:782:1::e",
-      "kavlan-4": "2001:660:4406:790:1::e",
-      "kavlan-5": "2001:660:4406:791:1::e",
-      "kavlan-6": "2001:660:4406:792:1::e",
-      "kavlan-7": "2001:660:4406:793:1::e",
-      "kavlan-8": "2001:660:4406:794:1::e",
-      "kavlan-9": "2001:660:4406:795:1::e"
+      "kavlan-1": "2001:660:4406:780:1:0::e",
+      "kavlan-11": "2001:660:4406:1a0:701:0::e",
+      "kavlan-12": "2001:660:4406:2a0:701:0::e",
+      "kavlan-13": "2001:660:4406:4a0:701:0::e",
+      "kavlan-14": "2001:660:4406:5a0:701:0::e",
+      "kavlan-16": "2001:660:4406:7a0:701:0::e",
+      "kavlan-18": "2001:660:4406:8a0:701:0::e",
+      "kavlan-2": "2001:660:4406:781:1:0::e",
+      "kavlan-20": "2001:660:4406:3a0:701:0::e",
+      "kavlan-21": "2001:660:4406:6a0:701:0::e",
+      "kavlan-3": "2001:660:4406:782:1:0::e",
+      "kavlan-4": "2001:660:4406:790:1:0::e",
+      "kavlan-5": "2001:660:4406:791:1:0::e",
+      "kavlan-6": "2001:660:4406:792:1:0::e",
+      "kavlan-7": "2001:660:4406:793:1:0::e",
+      "kavlan-8": "2001:660:4406:794:1:0::e",
+      "kavlan-9": "2001:660:4406:795:1:0::e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::e",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.14",
-      "ip6": "2001:660:4406:700:1::e",
+      "ip6": "2001:660:4406:700:1:0::e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:58",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-15.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-15.json
index f3f6d892aa6..e291cb9e001 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-15.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-15.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::f",
-      "kavlan-11": "2001:660:4406:1a0:701::f",
-      "kavlan-12": "2001:660:4406:2a0:701::f",
-      "kavlan-13": "2001:660:4406:4a0:701::f",
-      "kavlan-14": "2001:660:4406:5a0:701::f",
-      "kavlan-16": "2001:660:4406:7a0:701::f",
-      "kavlan-18": "2001:660:4406:8a0:701::f",
-      "kavlan-2": "2001:660:4406:781:1::f",
-      "kavlan-20": "2001:660:4406:3a0:701::f",
-      "kavlan-21": "2001:660:4406:6a0:701::f",
-      "kavlan-3": "2001:660:4406:782:1::f",
-      "kavlan-4": "2001:660:4406:790:1::f",
-      "kavlan-5": "2001:660:4406:791:1::f",
-      "kavlan-6": "2001:660:4406:792:1::f",
-      "kavlan-7": "2001:660:4406:793:1::f",
-      "kavlan-8": "2001:660:4406:794:1::f",
-      "kavlan-9": "2001:660:4406:795:1::f"
+      "kavlan-1": "2001:660:4406:780:1:0::f",
+      "kavlan-11": "2001:660:4406:1a0:701:0::f",
+      "kavlan-12": "2001:660:4406:2a0:701:0::f",
+      "kavlan-13": "2001:660:4406:4a0:701:0::f",
+      "kavlan-14": "2001:660:4406:5a0:701:0::f",
+      "kavlan-16": "2001:660:4406:7a0:701:0::f",
+      "kavlan-18": "2001:660:4406:8a0:701:0::f",
+      "kavlan-2": "2001:660:4406:781:1:0::f",
+      "kavlan-20": "2001:660:4406:3a0:701:0::f",
+      "kavlan-21": "2001:660:4406:6a0:701:0::f",
+      "kavlan-3": "2001:660:4406:782:1:0::f",
+      "kavlan-4": "2001:660:4406:790:1:0::f",
+      "kavlan-5": "2001:660:4406:791:1:0::f",
+      "kavlan-6": "2001:660:4406:792:1:0::f",
+      "kavlan-7": "2001:660:4406:793:1:0::f",
+      "kavlan-8": "2001:660:4406:794:1:0::f",
+      "kavlan-9": "2001:660:4406:795:1:0::f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::f",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.15",
-      "ip6": "2001:660:4406:700:1::f",
+      "ip6": "2001:660:4406:700:1:0::f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:90",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-16.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-16.json
index 1615d142c69..53ae6f641ed 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-16.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-16.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::10",
-      "kavlan-11": "2001:660:4406:1a0:701::10",
-      "kavlan-12": "2001:660:4406:2a0:701::10",
-      "kavlan-13": "2001:660:4406:4a0:701::10",
-      "kavlan-14": "2001:660:4406:5a0:701::10",
-      "kavlan-16": "2001:660:4406:7a0:701::10",
-      "kavlan-18": "2001:660:4406:8a0:701::10",
-      "kavlan-2": "2001:660:4406:781:1::10",
-      "kavlan-20": "2001:660:4406:3a0:701::10",
-      "kavlan-21": "2001:660:4406:6a0:701::10",
-      "kavlan-3": "2001:660:4406:782:1::10",
-      "kavlan-4": "2001:660:4406:790:1::10",
-      "kavlan-5": "2001:660:4406:791:1::10",
-      "kavlan-6": "2001:660:4406:792:1::10",
-      "kavlan-7": "2001:660:4406:793:1::10",
-      "kavlan-8": "2001:660:4406:794:1::10",
-      "kavlan-9": "2001:660:4406:795:1::10"
+      "kavlan-1": "2001:660:4406:780:1:0::10",
+      "kavlan-11": "2001:660:4406:1a0:701:0::10",
+      "kavlan-12": "2001:660:4406:2a0:701:0::10",
+      "kavlan-13": "2001:660:4406:4a0:701:0::10",
+      "kavlan-14": "2001:660:4406:5a0:701:0::10",
+      "kavlan-16": "2001:660:4406:7a0:701:0::10",
+      "kavlan-18": "2001:660:4406:8a0:701:0::10",
+      "kavlan-2": "2001:660:4406:781:1:0::10",
+      "kavlan-20": "2001:660:4406:3a0:701:0::10",
+      "kavlan-21": "2001:660:4406:6a0:701:0::10",
+      "kavlan-3": "2001:660:4406:782:1:0::10",
+      "kavlan-4": "2001:660:4406:790:1:0::10",
+      "kavlan-5": "2001:660:4406:791:1:0::10",
+      "kavlan-6": "2001:660:4406:792:1:0::10",
+      "kavlan-7": "2001:660:4406:793:1:0::10",
+      "kavlan-8": "2001:660:4406:794:1:0::10",
+      "kavlan-9": "2001:660:4406:795:1:0::10"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::10",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.16",
-      "ip6": "2001:660:4406:700:1::10",
+      "ip6": "2001:660:4406:700:1:0::10",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:38",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-17.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-17.json
index 34cfc5dcba0..d11efef4a55 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-17.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-17.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::11",
-      "kavlan-11": "2001:660:4406:1a0:701::11",
-      "kavlan-12": "2001:660:4406:2a0:701::11",
-      "kavlan-13": "2001:660:4406:4a0:701::11",
-      "kavlan-14": "2001:660:4406:5a0:701::11",
-      "kavlan-16": "2001:660:4406:7a0:701::11",
-      "kavlan-18": "2001:660:4406:8a0:701::11",
-      "kavlan-2": "2001:660:4406:781:1::11",
-      "kavlan-20": "2001:660:4406:3a0:701::11",
-      "kavlan-21": "2001:660:4406:6a0:701::11",
-      "kavlan-3": "2001:660:4406:782:1::11",
-      "kavlan-4": "2001:660:4406:790:1::11",
-      "kavlan-5": "2001:660:4406:791:1::11",
-      "kavlan-6": "2001:660:4406:792:1::11",
-      "kavlan-7": "2001:660:4406:793:1::11",
-      "kavlan-8": "2001:660:4406:794:1::11",
-      "kavlan-9": "2001:660:4406:795:1::11"
+      "kavlan-1": "2001:660:4406:780:1:0::11",
+      "kavlan-11": "2001:660:4406:1a0:701:0::11",
+      "kavlan-12": "2001:660:4406:2a0:701:0::11",
+      "kavlan-13": "2001:660:4406:4a0:701:0::11",
+      "kavlan-14": "2001:660:4406:5a0:701:0::11",
+      "kavlan-16": "2001:660:4406:7a0:701:0::11",
+      "kavlan-18": "2001:660:4406:8a0:701:0::11",
+      "kavlan-2": "2001:660:4406:781:1:0::11",
+      "kavlan-20": "2001:660:4406:3a0:701:0::11",
+      "kavlan-21": "2001:660:4406:6a0:701:0::11",
+      "kavlan-3": "2001:660:4406:782:1:0::11",
+      "kavlan-4": "2001:660:4406:790:1:0::11",
+      "kavlan-5": "2001:660:4406:791:1:0::11",
+      "kavlan-6": "2001:660:4406:792:1:0::11",
+      "kavlan-7": "2001:660:4406:793:1:0::11",
+      "kavlan-8": "2001:660:4406:794:1:0::11",
+      "kavlan-9": "2001:660:4406:795:1:0::11"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::11",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.17",
-      "ip6": "2001:660:4406:700:1::11",
+      "ip6": "2001:660:4406:700:1:0::11",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:c0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-18.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-18.json
index cd6eccd263d..54123c4cba0 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-18.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-18.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::12",
-      "kavlan-11": "2001:660:4406:1a0:701::12",
-      "kavlan-12": "2001:660:4406:2a0:701::12",
-      "kavlan-13": "2001:660:4406:4a0:701::12",
-      "kavlan-14": "2001:660:4406:5a0:701::12",
-      "kavlan-16": "2001:660:4406:7a0:701::12",
-      "kavlan-18": "2001:660:4406:8a0:701::12",
-      "kavlan-2": "2001:660:4406:781:1::12",
-      "kavlan-20": "2001:660:4406:3a0:701::12",
-      "kavlan-21": "2001:660:4406:6a0:701::12",
-      "kavlan-3": "2001:660:4406:782:1::12",
-      "kavlan-4": "2001:660:4406:790:1::12",
-      "kavlan-5": "2001:660:4406:791:1::12",
-      "kavlan-6": "2001:660:4406:792:1::12",
-      "kavlan-7": "2001:660:4406:793:1::12",
-      "kavlan-8": "2001:660:4406:794:1::12",
-      "kavlan-9": "2001:660:4406:795:1::12"
+      "kavlan-1": "2001:660:4406:780:1:0::12",
+      "kavlan-11": "2001:660:4406:1a0:701:0::12",
+      "kavlan-12": "2001:660:4406:2a0:701:0::12",
+      "kavlan-13": "2001:660:4406:4a0:701:0::12",
+      "kavlan-14": "2001:660:4406:5a0:701:0::12",
+      "kavlan-16": "2001:660:4406:7a0:701:0::12",
+      "kavlan-18": "2001:660:4406:8a0:701:0::12",
+      "kavlan-2": "2001:660:4406:781:1:0::12",
+      "kavlan-20": "2001:660:4406:3a0:701:0::12",
+      "kavlan-21": "2001:660:4406:6a0:701:0::12",
+      "kavlan-3": "2001:660:4406:782:1:0::12",
+      "kavlan-4": "2001:660:4406:790:1:0::12",
+      "kavlan-5": "2001:660:4406:791:1:0::12",
+      "kavlan-6": "2001:660:4406:792:1:0::12",
+      "kavlan-7": "2001:660:4406:793:1:0::12",
+      "kavlan-8": "2001:660:4406:794:1:0::12",
+      "kavlan-9": "2001:660:4406:795:1:0::12"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::12",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.18",
-      "ip6": "2001:660:4406:700:1::12",
+      "ip6": "2001:660:4406:700:1:0::12",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:e8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-19.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-19.json
index 9d2a0f3b080..018d803b807 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-19.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-19.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::13",
-      "kavlan-11": "2001:660:4406:1a0:701::13",
-      "kavlan-12": "2001:660:4406:2a0:701::13",
-      "kavlan-13": "2001:660:4406:4a0:701::13",
-      "kavlan-14": "2001:660:4406:5a0:701::13",
-      "kavlan-16": "2001:660:4406:7a0:701::13",
-      "kavlan-18": "2001:660:4406:8a0:701::13",
-      "kavlan-2": "2001:660:4406:781:1::13",
-      "kavlan-20": "2001:660:4406:3a0:701::13",
-      "kavlan-21": "2001:660:4406:6a0:701::13",
-      "kavlan-3": "2001:660:4406:782:1::13",
-      "kavlan-4": "2001:660:4406:790:1::13",
-      "kavlan-5": "2001:660:4406:791:1::13",
-      "kavlan-6": "2001:660:4406:792:1::13",
-      "kavlan-7": "2001:660:4406:793:1::13",
-      "kavlan-8": "2001:660:4406:794:1::13",
-      "kavlan-9": "2001:660:4406:795:1::13"
+      "kavlan-1": "2001:660:4406:780:1:0::13",
+      "kavlan-11": "2001:660:4406:1a0:701:0::13",
+      "kavlan-12": "2001:660:4406:2a0:701:0::13",
+      "kavlan-13": "2001:660:4406:4a0:701:0::13",
+      "kavlan-14": "2001:660:4406:5a0:701:0::13",
+      "kavlan-16": "2001:660:4406:7a0:701:0::13",
+      "kavlan-18": "2001:660:4406:8a0:701:0::13",
+      "kavlan-2": "2001:660:4406:781:1:0::13",
+      "kavlan-20": "2001:660:4406:3a0:701:0::13",
+      "kavlan-21": "2001:660:4406:6a0:701:0::13",
+      "kavlan-3": "2001:660:4406:782:1:0::13",
+      "kavlan-4": "2001:660:4406:790:1:0::13",
+      "kavlan-5": "2001:660:4406:791:1:0::13",
+      "kavlan-6": "2001:660:4406:792:1:0::13",
+      "kavlan-7": "2001:660:4406:793:1:0::13",
+      "kavlan-8": "2001:660:4406:794:1:0::13",
+      "kavlan-9": "2001:660:4406:795:1:0::13"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::13",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.19",
-      "ip6": "2001:660:4406:700:1::13",
+      "ip6": "2001:660:4406:700:1:0::13",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:98",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-2.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-2.json
index 263807f1163..6023a3f4715 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-2.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-2.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::2",
-      "kavlan-11": "2001:660:4406:1a0:701::2",
-      "kavlan-12": "2001:660:4406:2a0:701::2",
-      "kavlan-13": "2001:660:4406:4a0:701::2",
-      "kavlan-14": "2001:660:4406:5a0:701::2",
-      "kavlan-16": "2001:660:4406:7a0:701::2",
-      "kavlan-18": "2001:660:4406:8a0:701::2",
-      "kavlan-2": "2001:660:4406:781:1::2",
-      "kavlan-20": "2001:660:4406:3a0:701::2",
-      "kavlan-21": "2001:660:4406:6a0:701::2",
-      "kavlan-3": "2001:660:4406:782:1::2",
-      "kavlan-4": "2001:660:4406:790:1::2",
-      "kavlan-5": "2001:660:4406:791:1::2",
-      "kavlan-6": "2001:660:4406:792:1::2",
-      "kavlan-7": "2001:660:4406:793:1::2",
-      "kavlan-8": "2001:660:4406:794:1::2",
-      "kavlan-9": "2001:660:4406:795:1::2"
+      "kavlan-1": "2001:660:4406:780:1:0::2",
+      "kavlan-11": "2001:660:4406:1a0:701:0::2",
+      "kavlan-12": "2001:660:4406:2a0:701:0::2",
+      "kavlan-13": "2001:660:4406:4a0:701:0::2",
+      "kavlan-14": "2001:660:4406:5a0:701:0::2",
+      "kavlan-16": "2001:660:4406:7a0:701:0::2",
+      "kavlan-18": "2001:660:4406:8a0:701:0::2",
+      "kavlan-2": "2001:660:4406:781:1:0::2",
+      "kavlan-20": "2001:660:4406:3a0:701:0::2",
+      "kavlan-21": "2001:660:4406:6a0:701:0::2",
+      "kavlan-3": "2001:660:4406:782:1:0::2",
+      "kavlan-4": "2001:660:4406:790:1:0::2",
+      "kavlan-5": "2001:660:4406:791:1:0::2",
+      "kavlan-6": "2001:660:4406:792:1:0::2",
+      "kavlan-7": "2001:660:4406:793:1:0::2",
+      "kavlan-8": "2001:660:4406:794:1:0::2",
+      "kavlan-9": "2001:660:4406:795:1:0::2"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::2",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.2",
-      "ip6": "2001:660:4406:700:1::2",
+      "ip6": "2001:660:4406:700:1:0::2",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:b6:c0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-20.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-20.json
index be5bf2d39f2..f9315dac350 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-20.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-20.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::14",
-      "kavlan-11": "2001:660:4406:1a0:701::14",
-      "kavlan-12": "2001:660:4406:2a0:701::14",
-      "kavlan-13": "2001:660:4406:4a0:701::14",
-      "kavlan-14": "2001:660:4406:5a0:701::14",
-      "kavlan-16": "2001:660:4406:7a0:701::14",
-      "kavlan-18": "2001:660:4406:8a0:701::14",
-      "kavlan-2": "2001:660:4406:781:1::14",
-      "kavlan-20": "2001:660:4406:3a0:701::14",
-      "kavlan-21": "2001:660:4406:6a0:701::14",
-      "kavlan-3": "2001:660:4406:782:1::14",
-      "kavlan-4": "2001:660:4406:790:1::14",
-      "kavlan-5": "2001:660:4406:791:1::14",
-      "kavlan-6": "2001:660:4406:792:1::14",
-      "kavlan-7": "2001:660:4406:793:1::14",
-      "kavlan-8": "2001:660:4406:794:1::14",
-      "kavlan-9": "2001:660:4406:795:1::14"
+      "kavlan-1": "2001:660:4406:780:1:0::14",
+      "kavlan-11": "2001:660:4406:1a0:701:0::14",
+      "kavlan-12": "2001:660:4406:2a0:701:0::14",
+      "kavlan-13": "2001:660:4406:4a0:701:0::14",
+      "kavlan-14": "2001:660:4406:5a0:701:0::14",
+      "kavlan-16": "2001:660:4406:7a0:701:0::14",
+      "kavlan-18": "2001:660:4406:8a0:701:0::14",
+      "kavlan-2": "2001:660:4406:781:1:0::14",
+      "kavlan-20": "2001:660:4406:3a0:701:0::14",
+      "kavlan-21": "2001:660:4406:6a0:701:0::14",
+      "kavlan-3": "2001:660:4406:782:1:0::14",
+      "kavlan-4": "2001:660:4406:790:1:0::14",
+      "kavlan-5": "2001:660:4406:791:1:0::14",
+      "kavlan-6": "2001:660:4406:792:1:0::14",
+      "kavlan-7": "2001:660:4406:793:1:0::14",
+      "kavlan-8": "2001:660:4406:794:1:0::14",
+      "kavlan-9": "2001:660:4406:795:1:0::14"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::14",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.20",
-      "ip6": "2001:660:4406:700:1::14",
+      "ip6": "2001:660:4406:700:1:0::14",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:00",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-21.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-21.json
index 8565a2d4b4f..ff155fd1e24 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-21.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-21.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::15",
-      "kavlan-11": "2001:660:4406:1a0:701::15",
-      "kavlan-12": "2001:660:4406:2a0:701::15",
-      "kavlan-13": "2001:660:4406:4a0:701::15",
-      "kavlan-14": "2001:660:4406:5a0:701::15",
-      "kavlan-16": "2001:660:4406:7a0:701::15",
-      "kavlan-18": "2001:660:4406:8a0:701::15",
-      "kavlan-2": "2001:660:4406:781:1::15",
-      "kavlan-20": "2001:660:4406:3a0:701::15",
-      "kavlan-21": "2001:660:4406:6a0:701::15",
-      "kavlan-3": "2001:660:4406:782:1::15",
-      "kavlan-4": "2001:660:4406:790:1::15",
-      "kavlan-5": "2001:660:4406:791:1::15",
-      "kavlan-6": "2001:660:4406:792:1::15",
-      "kavlan-7": "2001:660:4406:793:1::15",
-      "kavlan-8": "2001:660:4406:794:1::15",
-      "kavlan-9": "2001:660:4406:795:1::15"
+      "kavlan-1": "2001:660:4406:780:1:0::15",
+      "kavlan-11": "2001:660:4406:1a0:701:0::15",
+      "kavlan-12": "2001:660:4406:2a0:701:0::15",
+      "kavlan-13": "2001:660:4406:4a0:701:0::15",
+      "kavlan-14": "2001:660:4406:5a0:701:0::15",
+      "kavlan-16": "2001:660:4406:7a0:701:0::15",
+      "kavlan-18": "2001:660:4406:8a0:701:0::15",
+      "kavlan-2": "2001:660:4406:781:1:0::15",
+      "kavlan-20": "2001:660:4406:3a0:701:0::15",
+      "kavlan-21": "2001:660:4406:6a0:701:0::15",
+      "kavlan-3": "2001:660:4406:782:1:0::15",
+      "kavlan-4": "2001:660:4406:790:1:0::15",
+      "kavlan-5": "2001:660:4406:791:1:0::15",
+      "kavlan-6": "2001:660:4406:792:1:0::15",
+      "kavlan-7": "2001:660:4406:793:1:0::15",
+      "kavlan-8": "2001:660:4406:794:1:0::15",
+      "kavlan-9": "2001:660:4406:795:1:0::15"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::15",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.21",
-      "ip6": "2001:660:4406:700:1::15",
+      "ip6": "2001:660:4406:700:1:0::15",
       "kavlan": true,
       "mac": "ec:f4:bb:cf:d1:08",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-22.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-22.json
index c58d258115e..2276e0ba773 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-22.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-22.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::16",
-      "kavlan-11": "2001:660:4406:1a0:701::16",
-      "kavlan-12": "2001:660:4406:2a0:701::16",
-      "kavlan-13": "2001:660:4406:4a0:701::16",
-      "kavlan-14": "2001:660:4406:5a0:701::16",
-      "kavlan-16": "2001:660:4406:7a0:701::16",
-      "kavlan-18": "2001:660:4406:8a0:701::16",
-      "kavlan-2": "2001:660:4406:781:1::16",
-      "kavlan-20": "2001:660:4406:3a0:701::16",
-      "kavlan-21": "2001:660:4406:6a0:701::16",
-      "kavlan-3": "2001:660:4406:782:1::16",
-      "kavlan-4": "2001:660:4406:790:1::16",
-      "kavlan-5": "2001:660:4406:791:1::16",
-      "kavlan-6": "2001:660:4406:792:1::16",
-      "kavlan-7": "2001:660:4406:793:1::16",
-      "kavlan-8": "2001:660:4406:794:1::16",
-      "kavlan-9": "2001:660:4406:795:1::16"
+      "kavlan-1": "2001:660:4406:780:1:0::16",
+      "kavlan-11": "2001:660:4406:1a0:701:0::16",
+      "kavlan-12": "2001:660:4406:2a0:701:0::16",
+      "kavlan-13": "2001:660:4406:4a0:701:0::16",
+      "kavlan-14": "2001:660:4406:5a0:701:0::16",
+      "kavlan-16": "2001:660:4406:7a0:701:0::16",
+      "kavlan-18": "2001:660:4406:8a0:701:0::16",
+      "kavlan-2": "2001:660:4406:781:1:0::16",
+      "kavlan-20": "2001:660:4406:3a0:701:0::16",
+      "kavlan-21": "2001:660:4406:6a0:701:0::16",
+      "kavlan-3": "2001:660:4406:782:1:0::16",
+      "kavlan-4": "2001:660:4406:790:1:0::16",
+      "kavlan-5": "2001:660:4406:791:1:0::16",
+      "kavlan-6": "2001:660:4406:792:1:0::16",
+      "kavlan-7": "2001:660:4406:793:1:0::16",
+      "kavlan-8": "2001:660:4406:794:1:0::16",
+      "kavlan-9": "2001:660:4406:795:1:0::16"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::16",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.22",
-      "ip6": "2001:660:4406:700:1::16",
+      "ip6": "2001:660:4406:700:1:0::16",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:18",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-23.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-23.json
index 0571fbf840c..c1327f9d9e1 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-23.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-23.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::17",
-      "kavlan-11": "2001:660:4406:1a0:701::17",
-      "kavlan-12": "2001:660:4406:2a0:701::17",
-      "kavlan-13": "2001:660:4406:4a0:701::17",
-      "kavlan-14": "2001:660:4406:5a0:701::17",
-      "kavlan-16": "2001:660:4406:7a0:701::17",
-      "kavlan-18": "2001:660:4406:8a0:701::17",
-      "kavlan-2": "2001:660:4406:781:1::17",
-      "kavlan-20": "2001:660:4406:3a0:701::17",
-      "kavlan-21": "2001:660:4406:6a0:701::17",
-      "kavlan-3": "2001:660:4406:782:1::17",
-      "kavlan-4": "2001:660:4406:790:1::17",
-      "kavlan-5": "2001:660:4406:791:1::17",
-      "kavlan-6": "2001:660:4406:792:1::17",
-      "kavlan-7": "2001:660:4406:793:1::17",
-      "kavlan-8": "2001:660:4406:794:1::17",
-      "kavlan-9": "2001:660:4406:795:1::17"
+      "kavlan-1": "2001:660:4406:780:1:0::17",
+      "kavlan-11": "2001:660:4406:1a0:701:0::17",
+      "kavlan-12": "2001:660:4406:2a0:701:0::17",
+      "kavlan-13": "2001:660:4406:4a0:701:0::17",
+      "kavlan-14": "2001:660:4406:5a0:701:0::17",
+      "kavlan-16": "2001:660:4406:7a0:701:0::17",
+      "kavlan-18": "2001:660:4406:8a0:701:0::17",
+      "kavlan-2": "2001:660:4406:781:1:0::17",
+      "kavlan-20": "2001:660:4406:3a0:701:0::17",
+      "kavlan-21": "2001:660:4406:6a0:701:0::17",
+      "kavlan-3": "2001:660:4406:782:1:0::17",
+      "kavlan-4": "2001:660:4406:790:1:0::17",
+      "kavlan-5": "2001:660:4406:791:1:0::17",
+      "kavlan-6": "2001:660:4406:792:1:0::17",
+      "kavlan-7": "2001:660:4406:793:1:0::17",
+      "kavlan-8": "2001:660:4406:794:1:0::17",
+      "kavlan-9": "2001:660:4406:795:1:0::17"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::17",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.23",
-      "ip6": "2001:660:4406:700:1::17",
+      "ip6": "2001:660:4406:700:1:0::17",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:20",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-24.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-24.json
index 966d0877820..3402cd93afb 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-24.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-24.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::18",
-      "kavlan-11": "2001:660:4406:1a0:701::18",
-      "kavlan-12": "2001:660:4406:2a0:701::18",
-      "kavlan-13": "2001:660:4406:4a0:701::18",
-      "kavlan-14": "2001:660:4406:5a0:701::18",
-      "kavlan-16": "2001:660:4406:7a0:701::18",
-      "kavlan-18": "2001:660:4406:8a0:701::18",
-      "kavlan-2": "2001:660:4406:781:1::18",
-      "kavlan-20": "2001:660:4406:3a0:701::18",
-      "kavlan-21": "2001:660:4406:6a0:701::18",
-      "kavlan-3": "2001:660:4406:782:1::18",
-      "kavlan-4": "2001:660:4406:790:1::18",
-      "kavlan-5": "2001:660:4406:791:1::18",
-      "kavlan-6": "2001:660:4406:792:1::18",
-      "kavlan-7": "2001:660:4406:793:1::18",
-      "kavlan-8": "2001:660:4406:794:1::18",
-      "kavlan-9": "2001:660:4406:795:1::18"
+      "kavlan-1": "2001:660:4406:780:1:0::18",
+      "kavlan-11": "2001:660:4406:1a0:701:0::18",
+      "kavlan-12": "2001:660:4406:2a0:701:0::18",
+      "kavlan-13": "2001:660:4406:4a0:701:0::18",
+      "kavlan-14": "2001:660:4406:5a0:701:0::18",
+      "kavlan-16": "2001:660:4406:7a0:701:0::18",
+      "kavlan-18": "2001:660:4406:8a0:701:0::18",
+      "kavlan-2": "2001:660:4406:781:1:0::18",
+      "kavlan-20": "2001:660:4406:3a0:701:0::18",
+      "kavlan-21": "2001:660:4406:6a0:701:0::18",
+      "kavlan-3": "2001:660:4406:782:1:0::18",
+      "kavlan-4": "2001:660:4406:790:1:0::18",
+      "kavlan-5": "2001:660:4406:791:1:0::18",
+      "kavlan-6": "2001:660:4406:792:1:0::18",
+      "kavlan-7": "2001:660:4406:793:1:0::18",
+      "kavlan-8": "2001:660:4406:794:1:0::18",
+      "kavlan-9": "2001:660:4406:795:1:0::18"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::18",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.24",
-      "ip6": "2001:660:4406:700:1::18",
+      "ip6": "2001:660:4406:700:1:0::18",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f6:e8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-25.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-25.json
index 882f17dbbf7..542502d2bd4 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-25.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-25.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::19",
-      "kavlan-11": "2001:660:4406:1a0:701::19",
-      "kavlan-12": "2001:660:4406:2a0:701::19",
-      "kavlan-13": "2001:660:4406:4a0:701::19",
-      "kavlan-14": "2001:660:4406:5a0:701::19",
-      "kavlan-16": "2001:660:4406:7a0:701::19",
-      "kavlan-18": "2001:660:4406:8a0:701::19",
-      "kavlan-2": "2001:660:4406:781:1::19",
-      "kavlan-20": "2001:660:4406:3a0:701::19",
-      "kavlan-21": "2001:660:4406:6a0:701::19",
-      "kavlan-3": "2001:660:4406:782:1::19",
-      "kavlan-4": "2001:660:4406:790:1::19",
-      "kavlan-5": "2001:660:4406:791:1::19",
-      "kavlan-6": "2001:660:4406:792:1::19",
-      "kavlan-7": "2001:660:4406:793:1::19",
-      "kavlan-8": "2001:660:4406:794:1::19",
-      "kavlan-9": "2001:660:4406:795:1::19"
+      "kavlan-1": "2001:660:4406:780:1:0::19",
+      "kavlan-11": "2001:660:4406:1a0:701:0::19",
+      "kavlan-12": "2001:660:4406:2a0:701:0::19",
+      "kavlan-13": "2001:660:4406:4a0:701:0::19",
+      "kavlan-14": "2001:660:4406:5a0:701:0::19",
+      "kavlan-16": "2001:660:4406:7a0:701:0::19",
+      "kavlan-18": "2001:660:4406:8a0:701:0::19",
+      "kavlan-2": "2001:660:4406:781:1:0::19",
+      "kavlan-20": "2001:660:4406:3a0:701:0::19",
+      "kavlan-21": "2001:660:4406:6a0:701:0::19",
+      "kavlan-3": "2001:660:4406:782:1:0::19",
+      "kavlan-4": "2001:660:4406:790:1:0::19",
+      "kavlan-5": "2001:660:4406:791:1:0::19",
+      "kavlan-6": "2001:660:4406:792:1:0::19",
+      "kavlan-7": "2001:660:4406:793:1:0::19",
+      "kavlan-8": "2001:660:4406:794:1:0::19",
+      "kavlan-9": "2001:660:4406:795:1:0::19"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::19",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.25",
-      "ip6": "2001:660:4406:700:1::19",
+      "ip6": "2001:660:4406:700:1:0::19",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:18",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-26.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-26.json
index edc7d7a7100..6ba38c8cc8c 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-26.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-26.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::1a",
-      "kavlan-11": "2001:660:4406:1a0:701::1a",
-      "kavlan-12": "2001:660:4406:2a0:701::1a",
-      "kavlan-13": "2001:660:4406:4a0:701::1a",
-      "kavlan-14": "2001:660:4406:5a0:701::1a",
-      "kavlan-16": "2001:660:4406:7a0:701::1a",
-      "kavlan-18": "2001:660:4406:8a0:701::1a",
-      "kavlan-2": "2001:660:4406:781:1::1a",
-      "kavlan-20": "2001:660:4406:3a0:701::1a",
-      "kavlan-21": "2001:660:4406:6a0:701::1a",
-      "kavlan-3": "2001:660:4406:782:1::1a",
-      "kavlan-4": "2001:660:4406:790:1::1a",
-      "kavlan-5": "2001:660:4406:791:1::1a",
-      "kavlan-6": "2001:660:4406:792:1::1a",
-      "kavlan-7": "2001:660:4406:793:1::1a",
-      "kavlan-8": "2001:660:4406:794:1::1a",
-      "kavlan-9": "2001:660:4406:795:1::1a"
+      "kavlan-1": "2001:660:4406:780:1:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:701:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:701:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:701:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:701:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:701:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:701:0::1a",
+      "kavlan-2": "2001:660:4406:781:1:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:701:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:701:0::1a",
+      "kavlan-3": "2001:660:4406:782:1:0::1a",
+      "kavlan-4": "2001:660:4406:790:1:0::1a",
+      "kavlan-5": "2001:660:4406:791:1:0::1a",
+      "kavlan-6": "2001:660:4406:792:1:0::1a",
+      "kavlan-7": "2001:660:4406:793:1:0::1a",
+      "kavlan-8": "2001:660:4406:794:1:0::1a",
+      "kavlan-9": "2001:660:4406:795:1:0::1a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::1a",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.26",
-      "ip6": "2001:660:4406:700:1::1a",
+      "ip6": "2001:660:4406:700:1:0::1a",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:06:e0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-27.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-27.json
index 4c79de91d7a..cc8548fbfc1 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-27.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-27.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::1b",
-      "kavlan-11": "2001:660:4406:1a0:701::1b",
-      "kavlan-12": "2001:660:4406:2a0:701::1b",
-      "kavlan-13": "2001:660:4406:4a0:701::1b",
-      "kavlan-14": "2001:660:4406:5a0:701::1b",
-      "kavlan-16": "2001:660:4406:7a0:701::1b",
-      "kavlan-18": "2001:660:4406:8a0:701::1b",
-      "kavlan-2": "2001:660:4406:781:1::1b",
-      "kavlan-20": "2001:660:4406:3a0:701::1b",
-      "kavlan-21": "2001:660:4406:6a0:701::1b",
-      "kavlan-3": "2001:660:4406:782:1::1b",
-      "kavlan-4": "2001:660:4406:790:1::1b",
-      "kavlan-5": "2001:660:4406:791:1::1b",
-      "kavlan-6": "2001:660:4406:792:1::1b",
-      "kavlan-7": "2001:660:4406:793:1::1b",
-      "kavlan-8": "2001:660:4406:794:1::1b",
-      "kavlan-9": "2001:660:4406:795:1::1b"
+      "kavlan-1": "2001:660:4406:780:1:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:701:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:701:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:701:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:701:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:701:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:701:0::1b",
+      "kavlan-2": "2001:660:4406:781:1:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:701:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:701:0::1b",
+      "kavlan-3": "2001:660:4406:782:1:0::1b",
+      "kavlan-4": "2001:660:4406:790:1:0::1b",
+      "kavlan-5": "2001:660:4406:791:1:0::1b",
+      "kavlan-6": "2001:660:4406:792:1:0::1b",
+      "kavlan-7": "2001:660:4406:793:1:0::1b",
+      "kavlan-8": "2001:660:4406:794:1:0::1b",
+      "kavlan-9": "2001:660:4406:795:1:0::1b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::1b",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.27",
-      "ip6": "2001:660:4406:700:1::1b",
+      "ip6": "2001:660:4406:700:1:0::1b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:08",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-28.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-28.json
index a0873cebc9c..39ba5c58326 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-28.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-28.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::1c",
-      "kavlan-11": "2001:660:4406:1a0:701::1c",
-      "kavlan-12": "2001:660:4406:2a0:701::1c",
-      "kavlan-13": "2001:660:4406:4a0:701::1c",
-      "kavlan-14": "2001:660:4406:5a0:701::1c",
-      "kavlan-16": "2001:660:4406:7a0:701::1c",
-      "kavlan-18": "2001:660:4406:8a0:701::1c",
-      "kavlan-2": "2001:660:4406:781:1::1c",
-      "kavlan-20": "2001:660:4406:3a0:701::1c",
-      "kavlan-21": "2001:660:4406:6a0:701::1c",
-      "kavlan-3": "2001:660:4406:782:1::1c",
-      "kavlan-4": "2001:660:4406:790:1::1c",
-      "kavlan-5": "2001:660:4406:791:1::1c",
-      "kavlan-6": "2001:660:4406:792:1::1c",
-      "kavlan-7": "2001:660:4406:793:1::1c",
-      "kavlan-8": "2001:660:4406:794:1::1c",
-      "kavlan-9": "2001:660:4406:795:1::1c"
+      "kavlan-1": "2001:660:4406:780:1:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:701:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:701:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:701:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:701:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:701:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:701:0::1c",
+      "kavlan-2": "2001:660:4406:781:1:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:701:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:701:0::1c",
+      "kavlan-3": "2001:660:4406:782:1:0::1c",
+      "kavlan-4": "2001:660:4406:790:1:0::1c",
+      "kavlan-5": "2001:660:4406:791:1:0::1c",
+      "kavlan-6": "2001:660:4406:792:1:0::1c",
+      "kavlan-7": "2001:660:4406:793:1:0::1c",
+      "kavlan-8": "2001:660:4406:794:1:0::1c",
+      "kavlan-9": "2001:660:4406:795:1:0::1c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::1c",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.28",
-      "ip6": "2001:660:4406:700:1::1c",
+      "ip6": "2001:660:4406:700:1:0::1c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f9:08",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-29.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-29.json
index be7fa24a1de..5362608f578 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-29.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-29.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::1d",
-      "kavlan-11": "2001:660:4406:1a0:701::1d",
-      "kavlan-12": "2001:660:4406:2a0:701::1d",
-      "kavlan-13": "2001:660:4406:4a0:701::1d",
-      "kavlan-14": "2001:660:4406:5a0:701::1d",
-      "kavlan-16": "2001:660:4406:7a0:701::1d",
-      "kavlan-18": "2001:660:4406:8a0:701::1d",
-      "kavlan-2": "2001:660:4406:781:1::1d",
-      "kavlan-20": "2001:660:4406:3a0:701::1d",
-      "kavlan-21": "2001:660:4406:6a0:701::1d",
-      "kavlan-3": "2001:660:4406:782:1::1d",
-      "kavlan-4": "2001:660:4406:790:1::1d",
-      "kavlan-5": "2001:660:4406:791:1::1d",
-      "kavlan-6": "2001:660:4406:792:1::1d",
-      "kavlan-7": "2001:660:4406:793:1::1d",
-      "kavlan-8": "2001:660:4406:794:1::1d",
-      "kavlan-9": "2001:660:4406:795:1::1d"
+      "kavlan-1": "2001:660:4406:780:1:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:701:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:701:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:701:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:701:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:701:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:701:0::1d",
+      "kavlan-2": "2001:660:4406:781:1:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:701:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:701:0::1d",
+      "kavlan-3": "2001:660:4406:782:1:0::1d",
+      "kavlan-4": "2001:660:4406:790:1:0::1d",
+      "kavlan-5": "2001:660:4406:791:1:0::1d",
+      "kavlan-6": "2001:660:4406:792:1:0::1d",
+      "kavlan-7": "2001:660:4406:793:1:0::1d",
+      "kavlan-8": "2001:660:4406:794:1:0::1d",
+      "kavlan-9": "2001:660:4406:795:1:0::1d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::1d",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.29",
-      "ip6": "2001:660:4406:700:1::1d",
+      "ip6": "2001:660:4406:700:1:0::1d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:80",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-3.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-3.json
index 27ce742e128..cbf4c9397a2 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-3.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-3.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::3",
-      "kavlan-11": "2001:660:4406:1a0:701::3",
-      "kavlan-12": "2001:660:4406:2a0:701::3",
-      "kavlan-13": "2001:660:4406:4a0:701::3",
-      "kavlan-14": "2001:660:4406:5a0:701::3",
-      "kavlan-16": "2001:660:4406:7a0:701::3",
-      "kavlan-18": "2001:660:4406:8a0:701::3",
-      "kavlan-2": "2001:660:4406:781:1::3",
-      "kavlan-20": "2001:660:4406:3a0:701::3",
-      "kavlan-21": "2001:660:4406:6a0:701::3",
-      "kavlan-3": "2001:660:4406:782:1::3",
-      "kavlan-4": "2001:660:4406:790:1::3",
-      "kavlan-5": "2001:660:4406:791:1::3",
-      "kavlan-6": "2001:660:4406:792:1::3",
-      "kavlan-7": "2001:660:4406:793:1::3",
-      "kavlan-8": "2001:660:4406:794:1::3",
-      "kavlan-9": "2001:660:4406:795:1::3"
+      "kavlan-1": "2001:660:4406:780:1:0::3",
+      "kavlan-11": "2001:660:4406:1a0:701:0::3",
+      "kavlan-12": "2001:660:4406:2a0:701:0::3",
+      "kavlan-13": "2001:660:4406:4a0:701:0::3",
+      "kavlan-14": "2001:660:4406:5a0:701:0::3",
+      "kavlan-16": "2001:660:4406:7a0:701:0::3",
+      "kavlan-18": "2001:660:4406:8a0:701:0::3",
+      "kavlan-2": "2001:660:4406:781:1:0::3",
+      "kavlan-20": "2001:660:4406:3a0:701:0::3",
+      "kavlan-21": "2001:660:4406:6a0:701:0::3",
+      "kavlan-3": "2001:660:4406:782:1:0::3",
+      "kavlan-4": "2001:660:4406:790:1:0::3",
+      "kavlan-5": "2001:660:4406:791:1:0::3",
+      "kavlan-6": "2001:660:4406:792:1:0::3",
+      "kavlan-7": "2001:660:4406:793:1:0::3",
+      "kavlan-8": "2001:660:4406:794:1:0::3",
+      "kavlan-9": "2001:660:4406:795:1:0::3"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::3",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.3",
-      "ip6": "2001:660:4406:700:1::3",
+      "ip6": "2001:660:4406:700:1:0::3",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:c8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-30.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-30.json
index e5cacbc6048..de877f83d58 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-30.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-30.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::1e",
-      "kavlan-11": "2001:660:4406:1a0:701::1e",
-      "kavlan-12": "2001:660:4406:2a0:701::1e",
-      "kavlan-13": "2001:660:4406:4a0:701::1e",
-      "kavlan-14": "2001:660:4406:5a0:701::1e",
-      "kavlan-16": "2001:660:4406:7a0:701::1e",
-      "kavlan-18": "2001:660:4406:8a0:701::1e",
-      "kavlan-2": "2001:660:4406:781:1::1e",
-      "kavlan-20": "2001:660:4406:3a0:701::1e",
-      "kavlan-21": "2001:660:4406:6a0:701::1e",
-      "kavlan-3": "2001:660:4406:782:1::1e",
-      "kavlan-4": "2001:660:4406:790:1::1e",
-      "kavlan-5": "2001:660:4406:791:1::1e",
-      "kavlan-6": "2001:660:4406:792:1::1e",
-      "kavlan-7": "2001:660:4406:793:1::1e",
-      "kavlan-8": "2001:660:4406:794:1::1e",
-      "kavlan-9": "2001:660:4406:795:1::1e"
+      "kavlan-1": "2001:660:4406:780:1:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:701:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:701:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:701:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:701:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:701:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:701:0::1e",
+      "kavlan-2": "2001:660:4406:781:1:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:701:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:701:0::1e",
+      "kavlan-3": "2001:660:4406:782:1:0::1e",
+      "kavlan-4": "2001:660:4406:790:1:0::1e",
+      "kavlan-5": "2001:660:4406:791:1:0::1e",
+      "kavlan-6": "2001:660:4406:792:1:0::1e",
+      "kavlan-7": "2001:660:4406:793:1:0::1e",
+      "kavlan-8": "2001:660:4406:794:1:0::1e",
+      "kavlan-9": "2001:660:4406:795:1:0::1e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::1e",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.30",
-      "ip6": "2001:660:4406:700:1::1e",
+      "ip6": "2001:660:4406:700:1:0::1e",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:88",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-31.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-31.json
index b6479bb5ff6..c0133aa391a 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-31.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-31.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::1f",
-      "kavlan-11": "2001:660:4406:1a0:701::1f",
-      "kavlan-12": "2001:660:4406:2a0:701::1f",
-      "kavlan-13": "2001:660:4406:4a0:701::1f",
-      "kavlan-14": "2001:660:4406:5a0:701::1f",
-      "kavlan-16": "2001:660:4406:7a0:701::1f",
-      "kavlan-18": "2001:660:4406:8a0:701::1f",
-      "kavlan-2": "2001:660:4406:781:1::1f",
-      "kavlan-20": "2001:660:4406:3a0:701::1f",
-      "kavlan-21": "2001:660:4406:6a0:701::1f",
-      "kavlan-3": "2001:660:4406:782:1::1f",
-      "kavlan-4": "2001:660:4406:790:1::1f",
-      "kavlan-5": "2001:660:4406:791:1::1f",
-      "kavlan-6": "2001:660:4406:792:1::1f",
-      "kavlan-7": "2001:660:4406:793:1::1f",
-      "kavlan-8": "2001:660:4406:794:1::1f",
-      "kavlan-9": "2001:660:4406:795:1::1f"
+      "kavlan-1": "2001:660:4406:780:1:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:701:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:701:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:701:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:701:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:701:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:701:0::1f",
+      "kavlan-2": "2001:660:4406:781:1:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:701:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:701:0::1f",
+      "kavlan-3": "2001:660:4406:782:1:0::1f",
+      "kavlan-4": "2001:660:4406:790:1:0::1f",
+      "kavlan-5": "2001:660:4406:791:1:0::1f",
+      "kavlan-6": "2001:660:4406:792:1:0::1f",
+      "kavlan-7": "2001:660:4406:793:1:0::1f",
+      "kavlan-8": "2001:660:4406:794:1:0::1f",
+      "kavlan-9": "2001:660:4406:795:1:0::1f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::1f",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.31",
-      "ip6": "2001:660:4406:700:1::1f",
+      "ip6": "2001:660:4406:700:1:0::1f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:98",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-32.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-32.json
index 500f6d67e54..898dd943324 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-32.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-32.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::20",
-      "kavlan-11": "2001:660:4406:1a0:701::20",
-      "kavlan-12": "2001:660:4406:2a0:701::20",
-      "kavlan-13": "2001:660:4406:4a0:701::20",
-      "kavlan-14": "2001:660:4406:5a0:701::20",
-      "kavlan-16": "2001:660:4406:7a0:701::20",
-      "kavlan-18": "2001:660:4406:8a0:701::20",
-      "kavlan-2": "2001:660:4406:781:1::20",
-      "kavlan-20": "2001:660:4406:3a0:701::20",
-      "kavlan-21": "2001:660:4406:6a0:701::20",
-      "kavlan-3": "2001:660:4406:782:1::20",
-      "kavlan-4": "2001:660:4406:790:1::20",
-      "kavlan-5": "2001:660:4406:791:1::20",
-      "kavlan-6": "2001:660:4406:792:1::20",
-      "kavlan-7": "2001:660:4406:793:1::20",
-      "kavlan-8": "2001:660:4406:794:1::20",
-      "kavlan-9": "2001:660:4406:795:1::20"
+      "kavlan-1": "2001:660:4406:780:1:0::20",
+      "kavlan-11": "2001:660:4406:1a0:701:0::20",
+      "kavlan-12": "2001:660:4406:2a0:701:0::20",
+      "kavlan-13": "2001:660:4406:4a0:701:0::20",
+      "kavlan-14": "2001:660:4406:5a0:701:0::20",
+      "kavlan-16": "2001:660:4406:7a0:701:0::20",
+      "kavlan-18": "2001:660:4406:8a0:701:0::20",
+      "kavlan-2": "2001:660:4406:781:1:0::20",
+      "kavlan-20": "2001:660:4406:3a0:701:0::20",
+      "kavlan-21": "2001:660:4406:6a0:701:0::20",
+      "kavlan-3": "2001:660:4406:782:1:0::20",
+      "kavlan-4": "2001:660:4406:790:1:0::20",
+      "kavlan-5": "2001:660:4406:791:1:0::20",
+      "kavlan-6": "2001:660:4406:792:1:0::20",
+      "kavlan-7": "2001:660:4406:793:1:0::20",
+      "kavlan-8": "2001:660:4406:794:1:0::20",
+      "kavlan-9": "2001:660:4406:795:1:0::20"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::20",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.32",
-      "ip6": "2001:660:4406:700:1::20",
+      "ip6": "2001:660:4406:700:1:0::20",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:f0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-33.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-33.json
index b4f3727fba0..dd995c31363 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-33.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-33.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::21",
-      "kavlan-11": "2001:660:4406:1a0:701::21",
-      "kavlan-12": "2001:660:4406:2a0:701::21",
-      "kavlan-13": "2001:660:4406:4a0:701::21",
-      "kavlan-14": "2001:660:4406:5a0:701::21",
-      "kavlan-16": "2001:660:4406:7a0:701::21",
-      "kavlan-18": "2001:660:4406:8a0:701::21",
-      "kavlan-2": "2001:660:4406:781:1::21",
-      "kavlan-20": "2001:660:4406:3a0:701::21",
-      "kavlan-21": "2001:660:4406:6a0:701::21",
-      "kavlan-3": "2001:660:4406:782:1::21",
-      "kavlan-4": "2001:660:4406:790:1::21",
-      "kavlan-5": "2001:660:4406:791:1::21",
-      "kavlan-6": "2001:660:4406:792:1::21",
-      "kavlan-7": "2001:660:4406:793:1::21",
-      "kavlan-8": "2001:660:4406:794:1::21",
-      "kavlan-9": "2001:660:4406:795:1::21"
+      "kavlan-1": "2001:660:4406:780:1:0::21",
+      "kavlan-11": "2001:660:4406:1a0:701:0::21",
+      "kavlan-12": "2001:660:4406:2a0:701:0::21",
+      "kavlan-13": "2001:660:4406:4a0:701:0::21",
+      "kavlan-14": "2001:660:4406:5a0:701:0::21",
+      "kavlan-16": "2001:660:4406:7a0:701:0::21",
+      "kavlan-18": "2001:660:4406:8a0:701:0::21",
+      "kavlan-2": "2001:660:4406:781:1:0::21",
+      "kavlan-20": "2001:660:4406:3a0:701:0::21",
+      "kavlan-21": "2001:660:4406:6a0:701:0::21",
+      "kavlan-3": "2001:660:4406:782:1:0::21",
+      "kavlan-4": "2001:660:4406:790:1:0::21",
+      "kavlan-5": "2001:660:4406:791:1:0::21",
+      "kavlan-6": "2001:660:4406:792:1:0::21",
+      "kavlan-7": "2001:660:4406:793:1:0::21",
+      "kavlan-8": "2001:660:4406:794:1:0::21",
+      "kavlan-9": "2001:660:4406:795:1:0::21"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::21",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.33",
-      "ip6": "2001:660:4406:700:1::21",
+      "ip6": "2001:660:4406:700:1:0::21",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:04:48",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-34.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-34.json
index 60575e3c576..a7d7a9b7a36 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-34.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-34.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::22",
-      "kavlan-11": "2001:660:4406:1a0:701::22",
-      "kavlan-12": "2001:660:4406:2a0:701::22",
-      "kavlan-13": "2001:660:4406:4a0:701::22",
-      "kavlan-14": "2001:660:4406:5a0:701::22",
-      "kavlan-16": "2001:660:4406:7a0:701::22",
-      "kavlan-18": "2001:660:4406:8a0:701::22",
-      "kavlan-2": "2001:660:4406:781:1::22",
-      "kavlan-20": "2001:660:4406:3a0:701::22",
-      "kavlan-21": "2001:660:4406:6a0:701::22",
-      "kavlan-3": "2001:660:4406:782:1::22",
-      "kavlan-4": "2001:660:4406:790:1::22",
-      "kavlan-5": "2001:660:4406:791:1::22",
-      "kavlan-6": "2001:660:4406:792:1::22",
-      "kavlan-7": "2001:660:4406:793:1::22",
-      "kavlan-8": "2001:660:4406:794:1::22",
-      "kavlan-9": "2001:660:4406:795:1::22"
+      "kavlan-1": "2001:660:4406:780:1:0::22",
+      "kavlan-11": "2001:660:4406:1a0:701:0::22",
+      "kavlan-12": "2001:660:4406:2a0:701:0::22",
+      "kavlan-13": "2001:660:4406:4a0:701:0::22",
+      "kavlan-14": "2001:660:4406:5a0:701:0::22",
+      "kavlan-16": "2001:660:4406:7a0:701:0::22",
+      "kavlan-18": "2001:660:4406:8a0:701:0::22",
+      "kavlan-2": "2001:660:4406:781:1:0::22",
+      "kavlan-20": "2001:660:4406:3a0:701:0::22",
+      "kavlan-21": "2001:660:4406:6a0:701:0::22",
+      "kavlan-3": "2001:660:4406:782:1:0::22",
+      "kavlan-4": "2001:660:4406:790:1:0::22",
+      "kavlan-5": "2001:660:4406:791:1:0::22",
+      "kavlan-6": "2001:660:4406:792:1:0::22",
+      "kavlan-7": "2001:660:4406:793:1:0::22",
+      "kavlan-8": "2001:660:4406:794:1:0::22",
+      "kavlan-9": "2001:660:4406:795:1:0::22"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::22",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.34",
-      "ip6": "2001:660:4406:700:1::22",
+      "ip6": "2001:660:4406:700:1:0::22",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f5:08",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-35.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-35.json
index 9ba4ff1eb41..f617dd31397 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-35.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-35.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::23",
-      "kavlan-11": "2001:660:4406:1a0:701::23",
-      "kavlan-12": "2001:660:4406:2a0:701::23",
-      "kavlan-13": "2001:660:4406:4a0:701::23",
-      "kavlan-14": "2001:660:4406:5a0:701::23",
-      "kavlan-16": "2001:660:4406:7a0:701::23",
-      "kavlan-18": "2001:660:4406:8a0:701::23",
-      "kavlan-2": "2001:660:4406:781:1::23",
-      "kavlan-20": "2001:660:4406:3a0:701::23",
-      "kavlan-21": "2001:660:4406:6a0:701::23",
-      "kavlan-3": "2001:660:4406:782:1::23",
-      "kavlan-4": "2001:660:4406:790:1::23",
-      "kavlan-5": "2001:660:4406:791:1::23",
-      "kavlan-6": "2001:660:4406:792:1::23",
-      "kavlan-7": "2001:660:4406:793:1::23",
-      "kavlan-8": "2001:660:4406:794:1::23",
-      "kavlan-9": "2001:660:4406:795:1::23"
+      "kavlan-1": "2001:660:4406:780:1:0::23",
+      "kavlan-11": "2001:660:4406:1a0:701:0::23",
+      "kavlan-12": "2001:660:4406:2a0:701:0::23",
+      "kavlan-13": "2001:660:4406:4a0:701:0::23",
+      "kavlan-14": "2001:660:4406:5a0:701:0::23",
+      "kavlan-16": "2001:660:4406:7a0:701:0::23",
+      "kavlan-18": "2001:660:4406:8a0:701:0::23",
+      "kavlan-2": "2001:660:4406:781:1:0::23",
+      "kavlan-20": "2001:660:4406:3a0:701:0::23",
+      "kavlan-21": "2001:660:4406:6a0:701:0::23",
+      "kavlan-3": "2001:660:4406:782:1:0::23",
+      "kavlan-4": "2001:660:4406:790:1:0::23",
+      "kavlan-5": "2001:660:4406:791:1:0::23",
+      "kavlan-6": "2001:660:4406:792:1:0::23",
+      "kavlan-7": "2001:660:4406:793:1:0::23",
+      "kavlan-8": "2001:660:4406:794:1:0::23",
+      "kavlan-9": "2001:660:4406:795:1:0::23"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::23",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.35",
-      "ip6": "2001:660:4406:700:1::23",
+      "ip6": "2001:660:4406:700:1:0::23",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:c0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-36.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-36.json
index 467344d58bc..0e5f7c143e5 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-36.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-36.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::24",
-      "kavlan-11": "2001:660:4406:1a0:701::24",
-      "kavlan-12": "2001:660:4406:2a0:701::24",
-      "kavlan-13": "2001:660:4406:4a0:701::24",
-      "kavlan-14": "2001:660:4406:5a0:701::24",
-      "kavlan-16": "2001:660:4406:7a0:701::24",
-      "kavlan-18": "2001:660:4406:8a0:701::24",
-      "kavlan-2": "2001:660:4406:781:1::24",
-      "kavlan-20": "2001:660:4406:3a0:701::24",
-      "kavlan-21": "2001:660:4406:6a0:701::24",
-      "kavlan-3": "2001:660:4406:782:1::24",
-      "kavlan-4": "2001:660:4406:790:1::24",
-      "kavlan-5": "2001:660:4406:791:1::24",
-      "kavlan-6": "2001:660:4406:792:1::24",
-      "kavlan-7": "2001:660:4406:793:1::24",
-      "kavlan-8": "2001:660:4406:794:1::24",
-      "kavlan-9": "2001:660:4406:795:1::24"
+      "kavlan-1": "2001:660:4406:780:1:0::24",
+      "kavlan-11": "2001:660:4406:1a0:701:0::24",
+      "kavlan-12": "2001:660:4406:2a0:701:0::24",
+      "kavlan-13": "2001:660:4406:4a0:701:0::24",
+      "kavlan-14": "2001:660:4406:5a0:701:0::24",
+      "kavlan-16": "2001:660:4406:7a0:701:0::24",
+      "kavlan-18": "2001:660:4406:8a0:701:0::24",
+      "kavlan-2": "2001:660:4406:781:1:0::24",
+      "kavlan-20": "2001:660:4406:3a0:701:0::24",
+      "kavlan-21": "2001:660:4406:6a0:701:0::24",
+      "kavlan-3": "2001:660:4406:782:1:0::24",
+      "kavlan-4": "2001:660:4406:790:1:0::24",
+      "kavlan-5": "2001:660:4406:791:1:0::24",
+      "kavlan-6": "2001:660:4406:792:1:0::24",
+      "kavlan-7": "2001:660:4406:793:1:0::24",
+      "kavlan-8": "2001:660:4406:794:1:0::24",
+      "kavlan-9": "2001:660:4406:795:1:0::24"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::24",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.36",
-      "ip6": "2001:660:4406:700:1::24",
+      "ip6": "2001:660:4406:700:1:0::24",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:20",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-37.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-37.json
index 588201f07ed..be9f68889a0 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-37.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-37.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::25",
-      "kavlan-11": "2001:660:4406:1a0:701::25",
-      "kavlan-12": "2001:660:4406:2a0:701::25",
-      "kavlan-13": "2001:660:4406:4a0:701::25",
-      "kavlan-14": "2001:660:4406:5a0:701::25",
-      "kavlan-16": "2001:660:4406:7a0:701::25",
-      "kavlan-18": "2001:660:4406:8a0:701::25",
-      "kavlan-2": "2001:660:4406:781:1::25",
-      "kavlan-20": "2001:660:4406:3a0:701::25",
-      "kavlan-21": "2001:660:4406:6a0:701::25",
-      "kavlan-3": "2001:660:4406:782:1::25",
-      "kavlan-4": "2001:660:4406:790:1::25",
-      "kavlan-5": "2001:660:4406:791:1::25",
-      "kavlan-6": "2001:660:4406:792:1::25",
-      "kavlan-7": "2001:660:4406:793:1::25",
-      "kavlan-8": "2001:660:4406:794:1::25",
-      "kavlan-9": "2001:660:4406:795:1::25"
+      "kavlan-1": "2001:660:4406:780:1:0::25",
+      "kavlan-11": "2001:660:4406:1a0:701:0::25",
+      "kavlan-12": "2001:660:4406:2a0:701:0::25",
+      "kavlan-13": "2001:660:4406:4a0:701:0::25",
+      "kavlan-14": "2001:660:4406:5a0:701:0::25",
+      "kavlan-16": "2001:660:4406:7a0:701:0::25",
+      "kavlan-18": "2001:660:4406:8a0:701:0::25",
+      "kavlan-2": "2001:660:4406:781:1:0::25",
+      "kavlan-20": "2001:660:4406:3a0:701:0::25",
+      "kavlan-21": "2001:660:4406:6a0:701:0::25",
+      "kavlan-3": "2001:660:4406:782:1:0::25",
+      "kavlan-4": "2001:660:4406:790:1:0::25",
+      "kavlan-5": "2001:660:4406:791:1:0::25",
+      "kavlan-6": "2001:660:4406:792:1:0::25",
+      "kavlan-7": "2001:660:4406:793:1:0::25",
+      "kavlan-8": "2001:660:4406:794:1:0::25",
+      "kavlan-9": "2001:660:4406:795:1:0::25"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::25",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.37",
-      "ip6": "2001:660:4406:700:1::25",
+      "ip6": "2001:660:4406:700:1:0::25",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:d8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-38.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-38.json
index a60c12071b3..7b2f54685d4 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-38.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-38.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::26",
-      "kavlan-11": "2001:660:4406:1a0:701::26",
-      "kavlan-12": "2001:660:4406:2a0:701::26",
-      "kavlan-13": "2001:660:4406:4a0:701::26",
-      "kavlan-14": "2001:660:4406:5a0:701::26",
-      "kavlan-16": "2001:660:4406:7a0:701::26",
-      "kavlan-18": "2001:660:4406:8a0:701::26",
-      "kavlan-2": "2001:660:4406:781:1::26",
-      "kavlan-20": "2001:660:4406:3a0:701::26",
-      "kavlan-21": "2001:660:4406:6a0:701::26",
-      "kavlan-3": "2001:660:4406:782:1::26",
-      "kavlan-4": "2001:660:4406:790:1::26",
-      "kavlan-5": "2001:660:4406:791:1::26",
-      "kavlan-6": "2001:660:4406:792:1::26",
-      "kavlan-7": "2001:660:4406:793:1::26",
-      "kavlan-8": "2001:660:4406:794:1::26",
-      "kavlan-9": "2001:660:4406:795:1::26"
+      "kavlan-1": "2001:660:4406:780:1:0::26",
+      "kavlan-11": "2001:660:4406:1a0:701:0::26",
+      "kavlan-12": "2001:660:4406:2a0:701:0::26",
+      "kavlan-13": "2001:660:4406:4a0:701:0::26",
+      "kavlan-14": "2001:660:4406:5a0:701:0::26",
+      "kavlan-16": "2001:660:4406:7a0:701:0::26",
+      "kavlan-18": "2001:660:4406:8a0:701:0::26",
+      "kavlan-2": "2001:660:4406:781:1:0::26",
+      "kavlan-20": "2001:660:4406:3a0:701:0::26",
+      "kavlan-21": "2001:660:4406:6a0:701:0::26",
+      "kavlan-3": "2001:660:4406:782:1:0::26",
+      "kavlan-4": "2001:660:4406:790:1:0::26",
+      "kavlan-5": "2001:660:4406:791:1:0::26",
+      "kavlan-6": "2001:660:4406:792:1:0::26",
+      "kavlan-7": "2001:660:4406:793:1:0::26",
+      "kavlan-8": "2001:660:4406:794:1:0::26",
+      "kavlan-9": "2001:660:4406:795:1:0::26"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::26",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.38",
-      "ip6": "2001:660:4406:700:1::26",
+      "ip6": "2001:660:4406:700:1:0::26",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fd:e0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-39.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-39.json
index 5a48e2446af..4dc8daebefb 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-39.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-39.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::27",
-      "kavlan-11": "2001:660:4406:1a0:701::27",
-      "kavlan-12": "2001:660:4406:2a0:701::27",
-      "kavlan-13": "2001:660:4406:4a0:701::27",
-      "kavlan-14": "2001:660:4406:5a0:701::27",
-      "kavlan-16": "2001:660:4406:7a0:701::27",
-      "kavlan-18": "2001:660:4406:8a0:701::27",
-      "kavlan-2": "2001:660:4406:781:1::27",
-      "kavlan-20": "2001:660:4406:3a0:701::27",
-      "kavlan-21": "2001:660:4406:6a0:701::27",
-      "kavlan-3": "2001:660:4406:782:1::27",
-      "kavlan-4": "2001:660:4406:790:1::27",
-      "kavlan-5": "2001:660:4406:791:1::27",
-      "kavlan-6": "2001:660:4406:792:1::27",
-      "kavlan-7": "2001:660:4406:793:1::27",
-      "kavlan-8": "2001:660:4406:794:1::27",
-      "kavlan-9": "2001:660:4406:795:1::27"
+      "kavlan-1": "2001:660:4406:780:1:0::27",
+      "kavlan-11": "2001:660:4406:1a0:701:0::27",
+      "kavlan-12": "2001:660:4406:2a0:701:0::27",
+      "kavlan-13": "2001:660:4406:4a0:701:0::27",
+      "kavlan-14": "2001:660:4406:5a0:701:0::27",
+      "kavlan-16": "2001:660:4406:7a0:701:0::27",
+      "kavlan-18": "2001:660:4406:8a0:701:0::27",
+      "kavlan-2": "2001:660:4406:781:1:0::27",
+      "kavlan-20": "2001:660:4406:3a0:701:0::27",
+      "kavlan-21": "2001:660:4406:6a0:701:0::27",
+      "kavlan-3": "2001:660:4406:782:1:0::27",
+      "kavlan-4": "2001:660:4406:790:1:0::27",
+      "kavlan-5": "2001:660:4406:791:1:0::27",
+      "kavlan-6": "2001:660:4406:792:1:0::27",
+      "kavlan-7": "2001:660:4406:793:1:0::27",
+      "kavlan-8": "2001:660:4406:794:1:0::27",
+      "kavlan-9": "2001:660:4406:795:1:0::27"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::27",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.39",
-      "ip6": "2001:660:4406:700:1::27",
+      "ip6": "2001:660:4406:700:1:0::27",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:d8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-4.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-4.json
index b18ebd724eb..25f0288336f 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-4.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-4.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::4",
-      "kavlan-11": "2001:660:4406:1a0:701::4",
-      "kavlan-12": "2001:660:4406:2a0:701::4",
-      "kavlan-13": "2001:660:4406:4a0:701::4",
-      "kavlan-14": "2001:660:4406:5a0:701::4",
-      "kavlan-16": "2001:660:4406:7a0:701::4",
-      "kavlan-18": "2001:660:4406:8a0:701::4",
-      "kavlan-2": "2001:660:4406:781:1::4",
-      "kavlan-20": "2001:660:4406:3a0:701::4",
-      "kavlan-21": "2001:660:4406:6a0:701::4",
-      "kavlan-3": "2001:660:4406:782:1::4",
-      "kavlan-4": "2001:660:4406:790:1::4",
-      "kavlan-5": "2001:660:4406:791:1::4",
-      "kavlan-6": "2001:660:4406:792:1::4",
-      "kavlan-7": "2001:660:4406:793:1::4",
-      "kavlan-8": "2001:660:4406:794:1::4",
-      "kavlan-9": "2001:660:4406:795:1::4"
+      "kavlan-1": "2001:660:4406:780:1:0::4",
+      "kavlan-11": "2001:660:4406:1a0:701:0::4",
+      "kavlan-12": "2001:660:4406:2a0:701:0::4",
+      "kavlan-13": "2001:660:4406:4a0:701:0::4",
+      "kavlan-14": "2001:660:4406:5a0:701:0::4",
+      "kavlan-16": "2001:660:4406:7a0:701:0::4",
+      "kavlan-18": "2001:660:4406:8a0:701:0::4",
+      "kavlan-2": "2001:660:4406:781:1:0::4",
+      "kavlan-20": "2001:660:4406:3a0:701:0::4",
+      "kavlan-21": "2001:660:4406:6a0:701:0::4",
+      "kavlan-3": "2001:660:4406:782:1:0::4",
+      "kavlan-4": "2001:660:4406:790:1:0::4",
+      "kavlan-5": "2001:660:4406:791:1:0::4",
+      "kavlan-6": "2001:660:4406:792:1:0::4",
+      "kavlan-7": "2001:660:4406:793:1:0::4",
+      "kavlan-8": "2001:660:4406:794:1:0::4",
+      "kavlan-9": "2001:660:4406:795:1:0::4"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::4",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.4",
-      "ip6": "2001:660:4406:700:1::4",
+      "ip6": "2001:660:4406:700:1:0::4",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:40",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-40.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-40.json
index 4ced594d604..fadad39bb82 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-40.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-40.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::28",
-      "kavlan-11": "2001:660:4406:1a0:701::28",
-      "kavlan-12": "2001:660:4406:2a0:701::28",
-      "kavlan-13": "2001:660:4406:4a0:701::28",
-      "kavlan-14": "2001:660:4406:5a0:701::28",
-      "kavlan-16": "2001:660:4406:7a0:701::28",
-      "kavlan-18": "2001:660:4406:8a0:701::28",
-      "kavlan-2": "2001:660:4406:781:1::28",
-      "kavlan-20": "2001:660:4406:3a0:701::28",
-      "kavlan-21": "2001:660:4406:6a0:701::28",
-      "kavlan-3": "2001:660:4406:782:1::28",
-      "kavlan-4": "2001:660:4406:790:1::28",
-      "kavlan-5": "2001:660:4406:791:1::28",
-      "kavlan-6": "2001:660:4406:792:1::28",
-      "kavlan-7": "2001:660:4406:793:1::28",
-      "kavlan-8": "2001:660:4406:794:1::28",
-      "kavlan-9": "2001:660:4406:795:1::28"
+      "kavlan-1": "2001:660:4406:780:1:0::28",
+      "kavlan-11": "2001:660:4406:1a0:701:0::28",
+      "kavlan-12": "2001:660:4406:2a0:701:0::28",
+      "kavlan-13": "2001:660:4406:4a0:701:0::28",
+      "kavlan-14": "2001:660:4406:5a0:701:0::28",
+      "kavlan-16": "2001:660:4406:7a0:701:0::28",
+      "kavlan-18": "2001:660:4406:8a0:701:0::28",
+      "kavlan-2": "2001:660:4406:781:1:0::28",
+      "kavlan-20": "2001:660:4406:3a0:701:0::28",
+      "kavlan-21": "2001:660:4406:6a0:701:0::28",
+      "kavlan-3": "2001:660:4406:782:1:0::28",
+      "kavlan-4": "2001:660:4406:790:1:0::28",
+      "kavlan-5": "2001:660:4406:791:1:0::28",
+      "kavlan-6": "2001:660:4406:792:1:0::28",
+      "kavlan-7": "2001:660:4406:793:1:0::28",
+      "kavlan-8": "2001:660:4406:794:1:0::28",
+      "kavlan-9": "2001:660:4406:795:1:0::28"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::28",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.40",
-      "ip6": "2001:660:4406:700:1::28",
+      "ip6": "2001:660:4406:700:1:0::28",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:20",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-41.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-41.json
index 0e271ac953e..6d0fe608ead 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-41.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-41.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::29",
-      "kavlan-11": "2001:660:4406:1a0:701::29",
-      "kavlan-12": "2001:660:4406:2a0:701::29",
-      "kavlan-13": "2001:660:4406:4a0:701::29",
-      "kavlan-14": "2001:660:4406:5a0:701::29",
-      "kavlan-16": "2001:660:4406:7a0:701::29",
-      "kavlan-18": "2001:660:4406:8a0:701::29",
-      "kavlan-2": "2001:660:4406:781:1::29",
-      "kavlan-20": "2001:660:4406:3a0:701::29",
-      "kavlan-21": "2001:660:4406:6a0:701::29",
-      "kavlan-3": "2001:660:4406:782:1::29",
-      "kavlan-4": "2001:660:4406:790:1::29",
-      "kavlan-5": "2001:660:4406:791:1::29",
-      "kavlan-6": "2001:660:4406:792:1::29",
-      "kavlan-7": "2001:660:4406:793:1::29",
-      "kavlan-8": "2001:660:4406:794:1::29",
-      "kavlan-9": "2001:660:4406:795:1::29"
+      "kavlan-1": "2001:660:4406:780:1:0::29",
+      "kavlan-11": "2001:660:4406:1a0:701:0::29",
+      "kavlan-12": "2001:660:4406:2a0:701:0::29",
+      "kavlan-13": "2001:660:4406:4a0:701:0::29",
+      "kavlan-14": "2001:660:4406:5a0:701:0::29",
+      "kavlan-16": "2001:660:4406:7a0:701:0::29",
+      "kavlan-18": "2001:660:4406:8a0:701:0::29",
+      "kavlan-2": "2001:660:4406:781:1:0::29",
+      "kavlan-20": "2001:660:4406:3a0:701:0::29",
+      "kavlan-21": "2001:660:4406:6a0:701:0::29",
+      "kavlan-3": "2001:660:4406:782:1:0::29",
+      "kavlan-4": "2001:660:4406:790:1:0::29",
+      "kavlan-5": "2001:660:4406:791:1:0::29",
+      "kavlan-6": "2001:660:4406:792:1:0::29",
+      "kavlan-7": "2001:660:4406:793:1:0::29",
+      "kavlan-8": "2001:660:4406:794:1:0::29",
+      "kavlan-9": "2001:660:4406:795:1:0::29"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::29",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.41",
-      "ip6": "2001:660:4406:700:1::29",
+      "ip6": "2001:660:4406:700:1:0::29",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f0:f8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-42.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-42.json
index 44ad4dbf92c..a32b23682e3 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-42.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-42.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::2a",
-      "kavlan-11": "2001:660:4406:1a0:701::2a",
-      "kavlan-12": "2001:660:4406:2a0:701::2a",
-      "kavlan-13": "2001:660:4406:4a0:701::2a",
-      "kavlan-14": "2001:660:4406:5a0:701::2a",
-      "kavlan-16": "2001:660:4406:7a0:701::2a",
-      "kavlan-18": "2001:660:4406:8a0:701::2a",
-      "kavlan-2": "2001:660:4406:781:1::2a",
-      "kavlan-20": "2001:660:4406:3a0:701::2a",
-      "kavlan-21": "2001:660:4406:6a0:701::2a",
-      "kavlan-3": "2001:660:4406:782:1::2a",
-      "kavlan-4": "2001:660:4406:790:1::2a",
-      "kavlan-5": "2001:660:4406:791:1::2a",
-      "kavlan-6": "2001:660:4406:792:1::2a",
-      "kavlan-7": "2001:660:4406:793:1::2a",
-      "kavlan-8": "2001:660:4406:794:1::2a",
-      "kavlan-9": "2001:660:4406:795:1::2a"
+      "kavlan-1": "2001:660:4406:780:1:0::2a",
+      "kavlan-11": "2001:660:4406:1a0:701:0::2a",
+      "kavlan-12": "2001:660:4406:2a0:701:0::2a",
+      "kavlan-13": "2001:660:4406:4a0:701:0::2a",
+      "kavlan-14": "2001:660:4406:5a0:701:0::2a",
+      "kavlan-16": "2001:660:4406:7a0:701:0::2a",
+      "kavlan-18": "2001:660:4406:8a0:701:0::2a",
+      "kavlan-2": "2001:660:4406:781:1:0::2a",
+      "kavlan-20": "2001:660:4406:3a0:701:0::2a",
+      "kavlan-21": "2001:660:4406:6a0:701:0::2a",
+      "kavlan-3": "2001:660:4406:782:1:0::2a",
+      "kavlan-4": "2001:660:4406:790:1:0::2a",
+      "kavlan-5": "2001:660:4406:791:1:0::2a",
+      "kavlan-6": "2001:660:4406:792:1:0::2a",
+      "kavlan-7": "2001:660:4406:793:1:0::2a",
+      "kavlan-8": "2001:660:4406:794:1:0::2a",
+      "kavlan-9": "2001:660:4406:795:1:0::2a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::2a",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.42",
-      "ip6": "2001:660:4406:700:1::2a",
+      "ip6": "2001:660:4406:700:1:0::2a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fe:d0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-43.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-43.json
index 74f3f035e66..d9f1fae830d 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-43.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-43.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::2b",
-      "kavlan-11": "2001:660:4406:1a0:701::2b",
-      "kavlan-12": "2001:660:4406:2a0:701::2b",
-      "kavlan-13": "2001:660:4406:4a0:701::2b",
-      "kavlan-14": "2001:660:4406:5a0:701::2b",
-      "kavlan-16": "2001:660:4406:7a0:701::2b",
-      "kavlan-18": "2001:660:4406:8a0:701::2b",
-      "kavlan-2": "2001:660:4406:781:1::2b",
-      "kavlan-20": "2001:660:4406:3a0:701::2b",
-      "kavlan-21": "2001:660:4406:6a0:701::2b",
-      "kavlan-3": "2001:660:4406:782:1::2b",
-      "kavlan-4": "2001:660:4406:790:1::2b",
-      "kavlan-5": "2001:660:4406:791:1::2b",
-      "kavlan-6": "2001:660:4406:792:1::2b",
-      "kavlan-7": "2001:660:4406:793:1::2b",
-      "kavlan-8": "2001:660:4406:794:1::2b",
-      "kavlan-9": "2001:660:4406:795:1::2b"
+      "kavlan-1": "2001:660:4406:780:1:0::2b",
+      "kavlan-11": "2001:660:4406:1a0:701:0::2b",
+      "kavlan-12": "2001:660:4406:2a0:701:0::2b",
+      "kavlan-13": "2001:660:4406:4a0:701:0::2b",
+      "kavlan-14": "2001:660:4406:5a0:701:0::2b",
+      "kavlan-16": "2001:660:4406:7a0:701:0::2b",
+      "kavlan-18": "2001:660:4406:8a0:701:0::2b",
+      "kavlan-2": "2001:660:4406:781:1:0::2b",
+      "kavlan-20": "2001:660:4406:3a0:701:0::2b",
+      "kavlan-21": "2001:660:4406:6a0:701:0::2b",
+      "kavlan-3": "2001:660:4406:782:1:0::2b",
+      "kavlan-4": "2001:660:4406:790:1:0::2b",
+      "kavlan-5": "2001:660:4406:791:1:0::2b",
+      "kavlan-6": "2001:660:4406:792:1:0::2b",
+      "kavlan-7": "2001:660:4406:793:1:0::2b",
+      "kavlan-8": "2001:660:4406:794:1:0::2b",
+      "kavlan-9": "2001:660:4406:795:1:0::2b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::2b",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.43",
-      "ip6": "2001:660:4406:700:1::2b",
+      "ip6": "2001:660:4406:700:1:0::2b",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fa:38",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-44.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-44.json
index 0fbd0fb985c..4a83942672c 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-44.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-44.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::2c",
-      "kavlan-11": "2001:660:4406:1a0:701::2c",
-      "kavlan-12": "2001:660:4406:2a0:701::2c",
-      "kavlan-13": "2001:660:4406:4a0:701::2c",
-      "kavlan-14": "2001:660:4406:5a0:701::2c",
-      "kavlan-16": "2001:660:4406:7a0:701::2c",
-      "kavlan-18": "2001:660:4406:8a0:701::2c",
-      "kavlan-2": "2001:660:4406:781:1::2c",
-      "kavlan-20": "2001:660:4406:3a0:701::2c",
-      "kavlan-21": "2001:660:4406:6a0:701::2c",
-      "kavlan-3": "2001:660:4406:782:1::2c",
-      "kavlan-4": "2001:660:4406:790:1::2c",
-      "kavlan-5": "2001:660:4406:791:1::2c",
-      "kavlan-6": "2001:660:4406:792:1::2c",
-      "kavlan-7": "2001:660:4406:793:1::2c",
-      "kavlan-8": "2001:660:4406:794:1::2c",
-      "kavlan-9": "2001:660:4406:795:1::2c"
+      "kavlan-1": "2001:660:4406:780:1:0::2c",
+      "kavlan-11": "2001:660:4406:1a0:701:0::2c",
+      "kavlan-12": "2001:660:4406:2a0:701:0::2c",
+      "kavlan-13": "2001:660:4406:4a0:701:0::2c",
+      "kavlan-14": "2001:660:4406:5a0:701:0::2c",
+      "kavlan-16": "2001:660:4406:7a0:701:0::2c",
+      "kavlan-18": "2001:660:4406:8a0:701:0::2c",
+      "kavlan-2": "2001:660:4406:781:1:0::2c",
+      "kavlan-20": "2001:660:4406:3a0:701:0::2c",
+      "kavlan-21": "2001:660:4406:6a0:701:0::2c",
+      "kavlan-3": "2001:660:4406:782:1:0::2c",
+      "kavlan-4": "2001:660:4406:790:1:0::2c",
+      "kavlan-5": "2001:660:4406:791:1:0::2c",
+      "kavlan-6": "2001:660:4406:792:1:0::2c",
+      "kavlan-7": "2001:660:4406:793:1:0::2c",
+      "kavlan-8": "2001:660:4406:794:1:0::2c",
+      "kavlan-9": "2001:660:4406:795:1:0::2c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::2c",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.44",
-      "ip6": "2001:660:4406:700:1::2c",
+      "ip6": "2001:660:4406:700:1:0::2c",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:eb:50",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-45.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-45.json
index 77fdbf43245..609404eaeb5 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-45.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-45.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::2d",
-      "kavlan-11": "2001:660:4406:1a0:701::2d",
-      "kavlan-12": "2001:660:4406:2a0:701::2d",
-      "kavlan-13": "2001:660:4406:4a0:701::2d",
-      "kavlan-14": "2001:660:4406:5a0:701::2d",
-      "kavlan-16": "2001:660:4406:7a0:701::2d",
-      "kavlan-18": "2001:660:4406:8a0:701::2d",
-      "kavlan-2": "2001:660:4406:781:1::2d",
-      "kavlan-20": "2001:660:4406:3a0:701::2d",
-      "kavlan-21": "2001:660:4406:6a0:701::2d",
-      "kavlan-3": "2001:660:4406:782:1::2d",
-      "kavlan-4": "2001:660:4406:790:1::2d",
-      "kavlan-5": "2001:660:4406:791:1::2d",
-      "kavlan-6": "2001:660:4406:792:1::2d",
-      "kavlan-7": "2001:660:4406:793:1::2d",
-      "kavlan-8": "2001:660:4406:794:1::2d",
-      "kavlan-9": "2001:660:4406:795:1::2d"
+      "kavlan-1": "2001:660:4406:780:1:0::2d",
+      "kavlan-11": "2001:660:4406:1a0:701:0::2d",
+      "kavlan-12": "2001:660:4406:2a0:701:0::2d",
+      "kavlan-13": "2001:660:4406:4a0:701:0::2d",
+      "kavlan-14": "2001:660:4406:5a0:701:0::2d",
+      "kavlan-16": "2001:660:4406:7a0:701:0::2d",
+      "kavlan-18": "2001:660:4406:8a0:701:0::2d",
+      "kavlan-2": "2001:660:4406:781:1:0::2d",
+      "kavlan-20": "2001:660:4406:3a0:701:0::2d",
+      "kavlan-21": "2001:660:4406:6a0:701:0::2d",
+      "kavlan-3": "2001:660:4406:782:1:0::2d",
+      "kavlan-4": "2001:660:4406:790:1:0::2d",
+      "kavlan-5": "2001:660:4406:791:1:0::2d",
+      "kavlan-6": "2001:660:4406:792:1:0::2d",
+      "kavlan-7": "2001:660:4406:793:1:0::2d",
+      "kavlan-8": "2001:660:4406:794:1:0::2d",
+      "kavlan-9": "2001:660:4406:795:1:0::2d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::2d",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.45",
-      "ip6": "2001:660:4406:700:1::2d",
+      "ip6": "2001:660:4406:700:1:0::2d",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ee:20",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-46.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-46.json
index 3896db3439d..992dce92ec3 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-46.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-46.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::2e",
-      "kavlan-11": "2001:660:4406:1a0:701::2e",
-      "kavlan-12": "2001:660:4406:2a0:701::2e",
-      "kavlan-13": "2001:660:4406:4a0:701::2e",
-      "kavlan-14": "2001:660:4406:5a0:701::2e",
-      "kavlan-16": "2001:660:4406:7a0:701::2e",
-      "kavlan-18": "2001:660:4406:8a0:701::2e",
-      "kavlan-2": "2001:660:4406:781:1::2e",
-      "kavlan-20": "2001:660:4406:3a0:701::2e",
-      "kavlan-21": "2001:660:4406:6a0:701::2e",
-      "kavlan-3": "2001:660:4406:782:1::2e",
-      "kavlan-4": "2001:660:4406:790:1::2e",
-      "kavlan-5": "2001:660:4406:791:1::2e",
-      "kavlan-6": "2001:660:4406:792:1::2e",
-      "kavlan-7": "2001:660:4406:793:1::2e",
-      "kavlan-8": "2001:660:4406:794:1::2e",
-      "kavlan-9": "2001:660:4406:795:1::2e"
+      "kavlan-1": "2001:660:4406:780:1:0::2e",
+      "kavlan-11": "2001:660:4406:1a0:701:0::2e",
+      "kavlan-12": "2001:660:4406:2a0:701:0::2e",
+      "kavlan-13": "2001:660:4406:4a0:701:0::2e",
+      "kavlan-14": "2001:660:4406:5a0:701:0::2e",
+      "kavlan-16": "2001:660:4406:7a0:701:0::2e",
+      "kavlan-18": "2001:660:4406:8a0:701:0::2e",
+      "kavlan-2": "2001:660:4406:781:1:0::2e",
+      "kavlan-20": "2001:660:4406:3a0:701:0::2e",
+      "kavlan-21": "2001:660:4406:6a0:701:0::2e",
+      "kavlan-3": "2001:660:4406:782:1:0::2e",
+      "kavlan-4": "2001:660:4406:790:1:0::2e",
+      "kavlan-5": "2001:660:4406:791:1:0::2e",
+      "kavlan-6": "2001:660:4406:792:1:0::2e",
+      "kavlan-7": "2001:660:4406:793:1:0::2e",
+      "kavlan-8": "2001:660:4406:794:1:0::2e",
+      "kavlan-9": "2001:660:4406:795:1:0::2e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::2e",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.46",
-      "ip6": "2001:660:4406:700:1::2e",
+      "ip6": "2001:660:4406:700:1:0::2e",
       "kavlan": true,
       "mac": "ec:f4:bb:ce:a5:60",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-47.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-47.json
index 1841a42489a..a40a68c5773 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-47.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-47.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::2f",
-      "kavlan-11": "2001:660:4406:1a0:701::2f",
-      "kavlan-12": "2001:660:4406:2a0:701::2f",
-      "kavlan-13": "2001:660:4406:4a0:701::2f",
-      "kavlan-14": "2001:660:4406:5a0:701::2f",
-      "kavlan-16": "2001:660:4406:7a0:701::2f",
-      "kavlan-18": "2001:660:4406:8a0:701::2f",
-      "kavlan-2": "2001:660:4406:781:1::2f",
-      "kavlan-20": "2001:660:4406:3a0:701::2f",
-      "kavlan-21": "2001:660:4406:6a0:701::2f",
-      "kavlan-3": "2001:660:4406:782:1::2f",
-      "kavlan-4": "2001:660:4406:790:1::2f",
-      "kavlan-5": "2001:660:4406:791:1::2f",
-      "kavlan-6": "2001:660:4406:792:1::2f",
-      "kavlan-7": "2001:660:4406:793:1::2f",
-      "kavlan-8": "2001:660:4406:794:1::2f",
-      "kavlan-9": "2001:660:4406:795:1::2f"
+      "kavlan-1": "2001:660:4406:780:1:0::2f",
+      "kavlan-11": "2001:660:4406:1a0:701:0::2f",
+      "kavlan-12": "2001:660:4406:2a0:701:0::2f",
+      "kavlan-13": "2001:660:4406:4a0:701:0::2f",
+      "kavlan-14": "2001:660:4406:5a0:701:0::2f",
+      "kavlan-16": "2001:660:4406:7a0:701:0::2f",
+      "kavlan-18": "2001:660:4406:8a0:701:0::2f",
+      "kavlan-2": "2001:660:4406:781:1:0::2f",
+      "kavlan-20": "2001:660:4406:3a0:701:0::2f",
+      "kavlan-21": "2001:660:4406:6a0:701:0::2f",
+      "kavlan-3": "2001:660:4406:782:1:0::2f",
+      "kavlan-4": "2001:660:4406:790:1:0::2f",
+      "kavlan-5": "2001:660:4406:791:1:0::2f",
+      "kavlan-6": "2001:660:4406:792:1:0::2f",
+      "kavlan-7": "2001:660:4406:793:1:0::2f",
+      "kavlan-8": "2001:660:4406:794:1:0::2f",
+      "kavlan-9": "2001:660:4406:795:1:0::2f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::2f",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.47",
-      "ip6": "2001:660:4406:700:1::2f",
+      "ip6": "2001:660:4406:700:1:0::2f",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:98",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-48.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-48.json
index ef40363b2e2..a47f910f9fe 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-48.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-48.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::30",
-      "kavlan-11": "2001:660:4406:1a0:701::30",
-      "kavlan-12": "2001:660:4406:2a0:701::30",
-      "kavlan-13": "2001:660:4406:4a0:701::30",
-      "kavlan-14": "2001:660:4406:5a0:701::30",
-      "kavlan-16": "2001:660:4406:7a0:701::30",
-      "kavlan-18": "2001:660:4406:8a0:701::30",
-      "kavlan-2": "2001:660:4406:781:1::30",
-      "kavlan-20": "2001:660:4406:3a0:701::30",
-      "kavlan-21": "2001:660:4406:6a0:701::30",
-      "kavlan-3": "2001:660:4406:782:1::30",
-      "kavlan-4": "2001:660:4406:790:1::30",
-      "kavlan-5": "2001:660:4406:791:1::30",
-      "kavlan-6": "2001:660:4406:792:1::30",
-      "kavlan-7": "2001:660:4406:793:1::30",
-      "kavlan-8": "2001:660:4406:794:1::30",
-      "kavlan-9": "2001:660:4406:795:1::30"
+      "kavlan-1": "2001:660:4406:780:1:0::30",
+      "kavlan-11": "2001:660:4406:1a0:701:0::30",
+      "kavlan-12": "2001:660:4406:2a0:701:0::30",
+      "kavlan-13": "2001:660:4406:4a0:701:0::30",
+      "kavlan-14": "2001:660:4406:5a0:701:0::30",
+      "kavlan-16": "2001:660:4406:7a0:701:0::30",
+      "kavlan-18": "2001:660:4406:8a0:701:0::30",
+      "kavlan-2": "2001:660:4406:781:1:0::30",
+      "kavlan-20": "2001:660:4406:3a0:701:0::30",
+      "kavlan-21": "2001:660:4406:6a0:701:0::30",
+      "kavlan-3": "2001:660:4406:782:1:0::30",
+      "kavlan-4": "2001:660:4406:790:1:0::30",
+      "kavlan-5": "2001:660:4406:791:1:0::30",
+      "kavlan-6": "2001:660:4406:792:1:0::30",
+      "kavlan-7": "2001:660:4406:793:1:0::30",
+      "kavlan-8": "2001:660:4406:794:1:0::30",
+      "kavlan-9": "2001:660:4406:795:1:0::30"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::30",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.48",
-      "ip6": "2001:660:4406:700:1::30",
+      "ip6": "2001:660:4406:700:1:0::30",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:fb:48",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-49.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-49.json
index e96f3b561a9..a3d023c2f24 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-49.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-49.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::31",
-      "kavlan-11": "2001:660:4406:1a0:701::31",
-      "kavlan-12": "2001:660:4406:2a0:701::31",
-      "kavlan-13": "2001:660:4406:4a0:701::31",
-      "kavlan-14": "2001:660:4406:5a0:701::31",
-      "kavlan-16": "2001:660:4406:7a0:701::31",
-      "kavlan-18": "2001:660:4406:8a0:701::31",
-      "kavlan-2": "2001:660:4406:781:1::31",
-      "kavlan-20": "2001:660:4406:3a0:701::31",
-      "kavlan-21": "2001:660:4406:6a0:701::31",
-      "kavlan-3": "2001:660:4406:782:1::31",
-      "kavlan-4": "2001:660:4406:790:1::31",
-      "kavlan-5": "2001:660:4406:791:1::31",
-      "kavlan-6": "2001:660:4406:792:1::31",
-      "kavlan-7": "2001:660:4406:793:1::31",
-      "kavlan-8": "2001:660:4406:794:1::31",
-      "kavlan-9": "2001:660:4406:795:1::31"
+      "kavlan-1": "2001:660:4406:780:1:0::31",
+      "kavlan-11": "2001:660:4406:1a0:701:0::31",
+      "kavlan-12": "2001:660:4406:2a0:701:0::31",
+      "kavlan-13": "2001:660:4406:4a0:701:0::31",
+      "kavlan-14": "2001:660:4406:5a0:701:0::31",
+      "kavlan-16": "2001:660:4406:7a0:701:0::31",
+      "kavlan-18": "2001:660:4406:8a0:701:0::31",
+      "kavlan-2": "2001:660:4406:781:1:0::31",
+      "kavlan-20": "2001:660:4406:3a0:701:0::31",
+      "kavlan-21": "2001:660:4406:6a0:701:0::31",
+      "kavlan-3": "2001:660:4406:782:1:0::31",
+      "kavlan-4": "2001:660:4406:790:1:0::31",
+      "kavlan-5": "2001:660:4406:791:1:0::31",
+      "kavlan-6": "2001:660:4406:792:1:0::31",
+      "kavlan-7": "2001:660:4406:793:1:0::31",
+      "kavlan-8": "2001:660:4406:794:1:0::31",
+      "kavlan-9": "2001:660:4406:795:1:0::31"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::31",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.49",
-      "ip6": "2001:660:4406:700:1::31",
+      "ip6": "2001:660:4406:700:1:0::31",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:d0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-5.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-5.json
index a544b893575..e1a6f39e5cc 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-5.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-5.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::5",
-      "kavlan-11": "2001:660:4406:1a0:701::5",
-      "kavlan-12": "2001:660:4406:2a0:701::5",
-      "kavlan-13": "2001:660:4406:4a0:701::5",
-      "kavlan-14": "2001:660:4406:5a0:701::5",
-      "kavlan-16": "2001:660:4406:7a0:701::5",
-      "kavlan-18": "2001:660:4406:8a0:701::5",
-      "kavlan-2": "2001:660:4406:781:1::5",
-      "kavlan-20": "2001:660:4406:3a0:701::5",
-      "kavlan-21": "2001:660:4406:6a0:701::5",
-      "kavlan-3": "2001:660:4406:782:1::5",
-      "kavlan-4": "2001:660:4406:790:1::5",
-      "kavlan-5": "2001:660:4406:791:1::5",
-      "kavlan-6": "2001:660:4406:792:1::5",
-      "kavlan-7": "2001:660:4406:793:1::5",
-      "kavlan-8": "2001:660:4406:794:1::5",
-      "kavlan-9": "2001:660:4406:795:1::5"
+      "kavlan-1": "2001:660:4406:780:1:0::5",
+      "kavlan-11": "2001:660:4406:1a0:701:0::5",
+      "kavlan-12": "2001:660:4406:2a0:701:0::5",
+      "kavlan-13": "2001:660:4406:4a0:701:0::5",
+      "kavlan-14": "2001:660:4406:5a0:701:0::5",
+      "kavlan-16": "2001:660:4406:7a0:701:0::5",
+      "kavlan-18": "2001:660:4406:8a0:701:0::5",
+      "kavlan-2": "2001:660:4406:781:1:0::5",
+      "kavlan-20": "2001:660:4406:3a0:701:0::5",
+      "kavlan-21": "2001:660:4406:6a0:701:0::5",
+      "kavlan-3": "2001:660:4406:782:1:0::5",
+      "kavlan-4": "2001:660:4406:790:1:0::5",
+      "kavlan-5": "2001:660:4406:791:1:0::5",
+      "kavlan-6": "2001:660:4406:792:1:0::5",
+      "kavlan-7": "2001:660:4406:793:1:0::5",
+      "kavlan-8": "2001:660:4406:794:1:0::5",
+      "kavlan-9": "2001:660:4406:795:1:0::5"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::5",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.5",
-      "ip6": "2001:660:4406:700:1::5",
+      "ip6": "2001:660:4406:700:1:0::5",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:68",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-50.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-50.json
index 21fee428281..5186dd8e89f 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-50.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-50.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::32",
-      "kavlan-11": "2001:660:4406:1a0:701::32",
-      "kavlan-12": "2001:660:4406:2a0:701::32",
-      "kavlan-13": "2001:660:4406:4a0:701::32",
-      "kavlan-14": "2001:660:4406:5a0:701::32",
-      "kavlan-16": "2001:660:4406:7a0:701::32",
-      "kavlan-18": "2001:660:4406:8a0:701::32",
-      "kavlan-2": "2001:660:4406:781:1::32",
-      "kavlan-20": "2001:660:4406:3a0:701::32",
-      "kavlan-21": "2001:660:4406:6a0:701::32",
-      "kavlan-3": "2001:660:4406:782:1::32",
-      "kavlan-4": "2001:660:4406:790:1::32",
-      "kavlan-5": "2001:660:4406:791:1::32",
-      "kavlan-6": "2001:660:4406:792:1::32",
-      "kavlan-7": "2001:660:4406:793:1::32",
-      "kavlan-8": "2001:660:4406:794:1::32",
-      "kavlan-9": "2001:660:4406:795:1::32"
+      "kavlan-1": "2001:660:4406:780:1:0::32",
+      "kavlan-11": "2001:660:4406:1a0:701:0::32",
+      "kavlan-12": "2001:660:4406:2a0:701:0::32",
+      "kavlan-13": "2001:660:4406:4a0:701:0::32",
+      "kavlan-14": "2001:660:4406:5a0:701:0::32",
+      "kavlan-16": "2001:660:4406:7a0:701:0::32",
+      "kavlan-18": "2001:660:4406:8a0:701:0::32",
+      "kavlan-2": "2001:660:4406:781:1:0::32",
+      "kavlan-20": "2001:660:4406:3a0:701:0::32",
+      "kavlan-21": "2001:660:4406:6a0:701:0::32",
+      "kavlan-3": "2001:660:4406:782:1:0::32",
+      "kavlan-4": "2001:660:4406:790:1:0::32",
+      "kavlan-5": "2001:660:4406:791:1:0::32",
+      "kavlan-6": "2001:660:4406:792:1:0::32",
+      "kavlan-7": "2001:660:4406:793:1:0::32",
+      "kavlan-8": "2001:660:4406:794:1:0::32",
+      "kavlan-9": "2001:660:4406:795:1:0::32"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::32",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.50",
-      "ip6": "2001:660:4406:700:1::32",
+      "ip6": "2001:660:4406:700:1:0::32",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:58",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-51.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-51.json
index 940e5b9e707..840fc9b1b99 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-51.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-51.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::33",
-      "kavlan-11": "2001:660:4406:1a0:701::33",
-      "kavlan-12": "2001:660:4406:2a0:701::33",
-      "kavlan-13": "2001:660:4406:4a0:701::33",
-      "kavlan-14": "2001:660:4406:5a0:701::33",
-      "kavlan-16": "2001:660:4406:7a0:701::33",
-      "kavlan-18": "2001:660:4406:8a0:701::33",
-      "kavlan-2": "2001:660:4406:781:1::33",
-      "kavlan-20": "2001:660:4406:3a0:701::33",
-      "kavlan-21": "2001:660:4406:6a0:701::33",
-      "kavlan-3": "2001:660:4406:782:1::33",
-      "kavlan-4": "2001:660:4406:790:1::33",
-      "kavlan-5": "2001:660:4406:791:1::33",
-      "kavlan-6": "2001:660:4406:792:1::33",
-      "kavlan-7": "2001:660:4406:793:1::33",
-      "kavlan-8": "2001:660:4406:794:1::33",
-      "kavlan-9": "2001:660:4406:795:1::33"
+      "kavlan-1": "2001:660:4406:780:1:0::33",
+      "kavlan-11": "2001:660:4406:1a0:701:0::33",
+      "kavlan-12": "2001:660:4406:2a0:701:0::33",
+      "kavlan-13": "2001:660:4406:4a0:701:0::33",
+      "kavlan-14": "2001:660:4406:5a0:701:0::33",
+      "kavlan-16": "2001:660:4406:7a0:701:0::33",
+      "kavlan-18": "2001:660:4406:8a0:701:0::33",
+      "kavlan-2": "2001:660:4406:781:1:0::33",
+      "kavlan-20": "2001:660:4406:3a0:701:0::33",
+      "kavlan-21": "2001:660:4406:6a0:701:0::33",
+      "kavlan-3": "2001:660:4406:782:1:0::33",
+      "kavlan-4": "2001:660:4406:790:1:0::33",
+      "kavlan-5": "2001:660:4406:791:1:0::33",
+      "kavlan-6": "2001:660:4406:792:1:0::33",
+      "kavlan-7": "2001:660:4406:793:1:0::33",
+      "kavlan-8": "2001:660:4406:794:1:0::33",
+      "kavlan-9": "2001:660:4406:795:1:0::33"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::33",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.51",
-      "ip6": "2001:660:4406:700:1::33",
+      "ip6": "2001:660:4406:700:1:0::33",
       "kavlan": true,
       "mac": "24:6e:96:31:da:e0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-52.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-52.json
index 8706a36f720..80ab6d742e0 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-52.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-52.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::34",
-      "kavlan-11": "2001:660:4406:1a0:701::34",
-      "kavlan-12": "2001:660:4406:2a0:701::34",
-      "kavlan-13": "2001:660:4406:4a0:701::34",
-      "kavlan-14": "2001:660:4406:5a0:701::34",
-      "kavlan-16": "2001:660:4406:7a0:701::34",
-      "kavlan-18": "2001:660:4406:8a0:701::34",
-      "kavlan-2": "2001:660:4406:781:1::34",
-      "kavlan-20": "2001:660:4406:3a0:701::34",
-      "kavlan-21": "2001:660:4406:6a0:701::34",
-      "kavlan-3": "2001:660:4406:782:1::34",
-      "kavlan-4": "2001:660:4406:790:1::34",
-      "kavlan-5": "2001:660:4406:791:1::34",
-      "kavlan-6": "2001:660:4406:792:1::34",
-      "kavlan-7": "2001:660:4406:793:1::34",
-      "kavlan-8": "2001:660:4406:794:1::34",
-      "kavlan-9": "2001:660:4406:795:1::34"
+      "kavlan-1": "2001:660:4406:780:1:0::34",
+      "kavlan-11": "2001:660:4406:1a0:701:0::34",
+      "kavlan-12": "2001:660:4406:2a0:701:0::34",
+      "kavlan-13": "2001:660:4406:4a0:701:0::34",
+      "kavlan-14": "2001:660:4406:5a0:701:0::34",
+      "kavlan-16": "2001:660:4406:7a0:701:0::34",
+      "kavlan-18": "2001:660:4406:8a0:701:0::34",
+      "kavlan-2": "2001:660:4406:781:1:0::34",
+      "kavlan-20": "2001:660:4406:3a0:701:0::34",
+      "kavlan-21": "2001:660:4406:6a0:701:0::34",
+      "kavlan-3": "2001:660:4406:782:1:0::34",
+      "kavlan-4": "2001:660:4406:790:1:0::34",
+      "kavlan-5": "2001:660:4406:791:1:0::34",
+      "kavlan-6": "2001:660:4406:792:1:0::34",
+      "kavlan-7": "2001:660:4406:793:1:0::34",
+      "kavlan-8": "2001:660:4406:794:1:0::34",
+      "kavlan-9": "2001:660:4406:795:1:0::34"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::34",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.52",
-      "ip6": "2001:660:4406:700:1::34",
+      "ip6": "2001:660:4406:700:1:0::34",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:d0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-53.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-53.json
index 6434dc2ccb2..cfca4ad79fd 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-53.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-53.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::35",
-      "kavlan-11": "2001:660:4406:1a0:701::35",
-      "kavlan-12": "2001:660:4406:2a0:701::35",
-      "kavlan-13": "2001:660:4406:4a0:701::35",
-      "kavlan-14": "2001:660:4406:5a0:701::35",
-      "kavlan-16": "2001:660:4406:7a0:701::35",
-      "kavlan-18": "2001:660:4406:8a0:701::35",
-      "kavlan-2": "2001:660:4406:781:1::35",
-      "kavlan-20": "2001:660:4406:3a0:701::35",
-      "kavlan-21": "2001:660:4406:6a0:701::35",
-      "kavlan-3": "2001:660:4406:782:1::35",
-      "kavlan-4": "2001:660:4406:790:1::35",
-      "kavlan-5": "2001:660:4406:791:1::35",
-      "kavlan-6": "2001:660:4406:792:1::35",
-      "kavlan-7": "2001:660:4406:793:1::35",
-      "kavlan-8": "2001:660:4406:794:1::35",
-      "kavlan-9": "2001:660:4406:795:1::35"
+      "kavlan-1": "2001:660:4406:780:1:0::35",
+      "kavlan-11": "2001:660:4406:1a0:701:0::35",
+      "kavlan-12": "2001:660:4406:2a0:701:0::35",
+      "kavlan-13": "2001:660:4406:4a0:701:0::35",
+      "kavlan-14": "2001:660:4406:5a0:701:0::35",
+      "kavlan-16": "2001:660:4406:7a0:701:0::35",
+      "kavlan-18": "2001:660:4406:8a0:701:0::35",
+      "kavlan-2": "2001:660:4406:781:1:0::35",
+      "kavlan-20": "2001:660:4406:3a0:701:0::35",
+      "kavlan-21": "2001:660:4406:6a0:701:0::35",
+      "kavlan-3": "2001:660:4406:782:1:0::35",
+      "kavlan-4": "2001:660:4406:790:1:0::35",
+      "kavlan-5": "2001:660:4406:791:1:0::35",
+      "kavlan-6": "2001:660:4406:792:1:0::35",
+      "kavlan-7": "2001:660:4406:793:1:0::35",
+      "kavlan-8": "2001:660:4406:794:1:0::35",
+      "kavlan-9": "2001:660:4406:795:1:0::35"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::35",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.53",
-      "ip6": "2001:660:4406:700:1::35",
+      "ip6": "2001:660:4406:700:1:0::35",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:90",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-54.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-54.json
index d01f5c916ea..67be0f9857c 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-54.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-54.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::36",
-      "kavlan-11": "2001:660:4406:1a0:701::36",
-      "kavlan-12": "2001:660:4406:2a0:701::36",
-      "kavlan-13": "2001:660:4406:4a0:701::36",
-      "kavlan-14": "2001:660:4406:5a0:701::36",
-      "kavlan-16": "2001:660:4406:7a0:701::36",
-      "kavlan-18": "2001:660:4406:8a0:701::36",
-      "kavlan-2": "2001:660:4406:781:1::36",
-      "kavlan-20": "2001:660:4406:3a0:701::36",
-      "kavlan-21": "2001:660:4406:6a0:701::36",
-      "kavlan-3": "2001:660:4406:782:1::36",
-      "kavlan-4": "2001:660:4406:790:1::36",
-      "kavlan-5": "2001:660:4406:791:1::36",
-      "kavlan-6": "2001:660:4406:792:1::36",
-      "kavlan-7": "2001:660:4406:793:1::36",
-      "kavlan-8": "2001:660:4406:794:1::36",
-      "kavlan-9": "2001:660:4406:795:1::36"
+      "kavlan-1": "2001:660:4406:780:1:0::36",
+      "kavlan-11": "2001:660:4406:1a0:701:0::36",
+      "kavlan-12": "2001:660:4406:2a0:701:0::36",
+      "kavlan-13": "2001:660:4406:4a0:701:0::36",
+      "kavlan-14": "2001:660:4406:5a0:701:0::36",
+      "kavlan-16": "2001:660:4406:7a0:701:0::36",
+      "kavlan-18": "2001:660:4406:8a0:701:0::36",
+      "kavlan-2": "2001:660:4406:781:1:0::36",
+      "kavlan-20": "2001:660:4406:3a0:701:0::36",
+      "kavlan-21": "2001:660:4406:6a0:701:0::36",
+      "kavlan-3": "2001:660:4406:782:1:0::36",
+      "kavlan-4": "2001:660:4406:790:1:0::36",
+      "kavlan-5": "2001:660:4406:791:1:0::36",
+      "kavlan-6": "2001:660:4406:792:1:0::36",
+      "kavlan-7": "2001:660:4406:793:1:0::36",
+      "kavlan-8": "2001:660:4406:794:1:0::36",
+      "kavlan-9": "2001:660:4406:795:1:0::36"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::36",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.54",
-      "ip6": "2001:660:4406:700:1::36",
+      "ip6": "2001:660:4406:700:1:0::36",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:58",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-55.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-55.json
index c2f12ecb8fc..a2c3c621a3e 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-55.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-55.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::37",
-      "kavlan-11": "2001:660:4406:1a0:701::37",
-      "kavlan-12": "2001:660:4406:2a0:701::37",
-      "kavlan-13": "2001:660:4406:4a0:701::37",
-      "kavlan-14": "2001:660:4406:5a0:701::37",
-      "kavlan-16": "2001:660:4406:7a0:701::37",
-      "kavlan-18": "2001:660:4406:8a0:701::37",
-      "kavlan-2": "2001:660:4406:781:1::37",
-      "kavlan-20": "2001:660:4406:3a0:701::37",
-      "kavlan-21": "2001:660:4406:6a0:701::37",
-      "kavlan-3": "2001:660:4406:782:1::37",
-      "kavlan-4": "2001:660:4406:790:1::37",
-      "kavlan-5": "2001:660:4406:791:1::37",
-      "kavlan-6": "2001:660:4406:792:1::37",
-      "kavlan-7": "2001:660:4406:793:1::37",
-      "kavlan-8": "2001:660:4406:794:1::37",
-      "kavlan-9": "2001:660:4406:795:1::37"
+      "kavlan-1": "2001:660:4406:780:1:0::37",
+      "kavlan-11": "2001:660:4406:1a0:701:0::37",
+      "kavlan-12": "2001:660:4406:2a0:701:0::37",
+      "kavlan-13": "2001:660:4406:4a0:701:0::37",
+      "kavlan-14": "2001:660:4406:5a0:701:0::37",
+      "kavlan-16": "2001:660:4406:7a0:701:0::37",
+      "kavlan-18": "2001:660:4406:8a0:701:0::37",
+      "kavlan-2": "2001:660:4406:781:1:0::37",
+      "kavlan-20": "2001:660:4406:3a0:701:0::37",
+      "kavlan-21": "2001:660:4406:6a0:701:0::37",
+      "kavlan-3": "2001:660:4406:782:1:0::37",
+      "kavlan-4": "2001:660:4406:790:1:0::37",
+      "kavlan-5": "2001:660:4406:791:1:0::37",
+      "kavlan-6": "2001:660:4406:792:1:0::37",
+      "kavlan-7": "2001:660:4406:793:1:0::37",
+      "kavlan-8": "2001:660:4406:794:1:0::37",
+      "kavlan-9": "2001:660:4406:795:1:0::37"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::37",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.55",
-      "ip6": "2001:660:4406:700:1::37",
+      "ip6": "2001:660:4406:700:1:0::37",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f6:30",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-56.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-56.json
index 3137209285e..f9f9eb685c5 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-56.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-56.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::38",
-      "kavlan-11": "2001:660:4406:1a0:701::38",
-      "kavlan-12": "2001:660:4406:2a0:701::38",
-      "kavlan-13": "2001:660:4406:4a0:701::38",
-      "kavlan-14": "2001:660:4406:5a0:701::38",
-      "kavlan-16": "2001:660:4406:7a0:701::38",
-      "kavlan-18": "2001:660:4406:8a0:701::38",
-      "kavlan-2": "2001:660:4406:781:1::38",
-      "kavlan-20": "2001:660:4406:3a0:701::38",
-      "kavlan-21": "2001:660:4406:6a0:701::38",
-      "kavlan-3": "2001:660:4406:782:1::38",
-      "kavlan-4": "2001:660:4406:790:1::38",
-      "kavlan-5": "2001:660:4406:791:1::38",
-      "kavlan-6": "2001:660:4406:792:1::38",
-      "kavlan-7": "2001:660:4406:793:1::38",
-      "kavlan-8": "2001:660:4406:794:1::38",
-      "kavlan-9": "2001:660:4406:795:1::38"
+      "kavlan-1": "2001:660:4406:780:1:0::38",
+      "kavlan-11": "2001:660:4406:1a0:701:0::38",
+      "kavlan-12": "2001:660:4406:2a0:701:0::38",
+      "kavlan-13": "2001:660:4406:4a0:701:0::38",
+      "kavlan-14": "2001:660:4406:5a0:701:0::38",
+      "kavlan-16": "2001:660:4406:7a0:701:0::38",
+      "kavlan-18": "2001:660:4406:8a0:701:0::38",
+      "kavlan-2": "2001:660:4406:781:1:0::38",
+      "kavlan-20": "2001:660:4406:3a0:701:0::38",
+      "kavlan-21": "2001:660:4406:6a0:701:0::38",
+      "kavlan-3": "2001:660:4406:782:1:0::38",
+      "kavlan-4": "2001:660:4406:790:1:0::38",
+      "kavlan-5": "2001:660:4406:791:1:0::38",
+      "kavlan-6": "2001:660:4406:792:1:0::38",
+      "kavlan-7": "2001:660:4406:793:1:0::38",
+      "kavlan-8": "2001:660:4406:794:1:0::38",
+      "kavlan-9": "2001:660:4406:795:1:0::38"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::38",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.56",
-      "ip6": "2001:660:4406:700:1::38",
+      "ip6": "2001:660:4406:700:1:0::38",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:e8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-57.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-57.json
index bc04115636f..c6ea1e9b512 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-57.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-57.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::39",
-      "kavlan-11": "2001:660:4406:1a0:701::39",
-      "kavlan-12": "2001:660:4406:2a0:701::39",
-      "kavlan-13": "2001:660:4406:4a0:701::39",
-      "kavlan-14": "2001:660:4406:5a0:701::39",
-      "kavlan-16": "2001:660:4406:7a0:701::39",
-      "kavlan-18": "2001:660:4406:8a0:701::39",
-      "kavlan-2": "2001:660:4406:781:1::39",
-      "kavlan-20": "2001:660:4406:3a0:701::39",
-      "kavlan-21": "2001:660:4406:6a0:701::39",
-      "kavlan-3": "2001:660:4406:782:1::39",
-      "kavlan-4": "2001:660:4406:790:1::39",
-      "kavlan-5": "2001:660:4406:791:1::39",
-      "kavlan-6": "2001:660:4406:792:1::39",
-      "kavlan-7": "2001:660:4406:793:1::39",
-      "kavlan-8": "2001:660:4406:794:1::39",
-      "kavlan-9": "2001:660:4406:795:1::39"
+      "kavlan-1": "2001:660:4406:780:1:0::39",
+      "kavlan-11": "2001:660:4406:1a0:701:0::39",
+      "kavlan-12": "2001:660:4406:2a0:701:0::39",
+      "kavlan-13": "2001:660:4406:4a0:701:0::39",
+      "kavlan-14": "2001:660:4406:5a0:701:0::39",
+      "kavlan-16": "2001:660:4406:7a0:701:0::39",
+      "kavlan-18": "2001:660:4406:8a0:701:0::39",
+      "kavlan-2": "2001:660:4406:781:1:0::39",
+      "kavlan-20": "2001:660:4406:3a0:701:0::39",
+      "kavlan-21": "2001:660:4406:6a0:701:0::39",
+      "kavlan-3": "2001:660:4406:782:1:0::39",
+      "kavlan-4": "2001:660:4406:790:1:0::39",
+      "kavlan-5": "2001:660:4406:791:1:0::39",
+      "kavlan-6": "2001:660:4406:792:1:0::39",
+      "kavlan-7": "2001:660:4406:793:1:0::39",
+      "kavlan-8": "2001:660:4406:794:1:0::39",
+      "kavlan-9": "2001:660:4406:795:1:0::39"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::39",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.57",
-      "ip6": "2001:660:4406:700:1::39",
+      "ip6": "2001:660:4406:700:1:0::39",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:a8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-58.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-58.json
index 7ab82701f69..03fb20e3155 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-58.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-58.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::3a",
-      "kavlan-11": "2001:660:4406:1a0:701::3a",
-      "kavlan-12": "2001:660:4406:2a0:701::3a",
-      "kavlan-13": "2001:660:4406:4a0:701::3a",
-      "kavlan-14": "2001:660:4406:5a0:701::3a",
-      "kavlan-16": "2001:660:4406:7a0:701::3a",
-      "kavlan-18": "2001:660:4406:8a0:701::3a",
-      "kavlan-2": "2001:660:4406:781:1::3a",
-      "kavlan-20": "2001:660:4406:3a0:701::3a",
-      "kavlan-21": "2001:660:4406:6a0:701::3a",
-      "kavlan-3": "2001:660:4406:782:1::3a",
-      "kavlan-4": "2001:660:4406:790:1::3a",
-      "kavlan-5": "2001:660:4406:791:1::3a",
-      "kavlan-6": "2001:660:4406:792:1::3a",
-      "kavlan-7": "2001:660:4406:793:1::3a",
-      "kavlan-8": "2001:660:4406:794:1::3a",
-      "kavlan-9": "2001:660:4406:795:1::3a"
+      "kavlan-1": "2001:660:4406:780:1:0::3a",
+      "kavlan-11": "2001:660:4406:1a0:701:0::3a",
+      "kavlan-12": "2001:660:4406:2a0:701:0::3a",
+      "kavlan-13": "2001:660:4406:4a0:701:0::3a",
+      "kavlan-14": "2001:660:4406:5a0:701:0::3a",
+      "kavlan-16": "2001:660:4406:7a0:701:0::3a",
+      "kavlan-18": "2001:660:4406:8a0:701:0::3a",
+      "kavlan-2": "2001:660:4406:781:1:0::3a",
+      "kavlan-20": "2001:660:4406:3a0:701:0::3a",
+      "kavlan-21": "2001:660:4406:6a0:701:0::3a",
+      "kavlan-3": "2001:660:4406:782:1:0::3a",
+      "kavlan-4": "2001:660:4406:790:1:0::3a",
+      "kavlan-5": "2001:660:4406:791:1:0::3a",
+      "kavlan-6": "2001:660:4406:792:1:0::3a",
+      "kavlan-7": "2001:660:4406:793:1:0::3a",
+      "kavlan-8": "2001:660:4406:794:1:0::3a",
+      "kavlan-9": "2001:660:4406:795:1:0::3a"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::3a",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.58",
-      "ip6": "2001:660:4406:700:1::3a",
+      "ip6": "2001:660:4406:700:1:0::3a",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f7:78",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-59.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-59.json
index 03783add27d..d538da7727b 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-59.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-59.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::3b",
-      "kavlan-11": "2001:660:4406:1a0:701::3b",
-      "kavlan-12": "2001:660:4406:2a0:701::3b",
-      "kavlan-13": "2001:660:4406:4a0:701::3b",
-      "kavlan-14": "2001:660:4406:5a0:701::3b",
-      "kavlan-16": "2001:660:4406:7a0:701::3b",
-      "kavlan-18": "2001:660:4406:8a0:701::3b",
-      "kavlan-2": "2001:660:4406:781:1::3b",
-      "kavlan-20": "2001:660:4406:3a0:701::3b",
-      "kavlan-21": "2001:660:4406:6a0:701::3b",
-      "kavlan-3": "2001:660:4406:782:1::3b",
-      "kavlan-4": "2001:660:4406:790:1::3b",
-      "kavlan-5": "2001:660:4406:791:1::3b",
-      "kavlan-6": "2001:660:4406:792:1::3b",
-      "kavlan-7": "2001:660:4406:793:1::3b",
-      "kavlan-8": "2001:660:4406:794:1::3b",
-      "kavlan-9": "2001:660:4406:795:1::3b"
+      "kavlan-1": "2001:660:4406:780:1:0::3b",
+      "kavlan-11": "2001:660:4406:1a0:701:0::3b",
+      "kavlan-12": "2001:660:4406:2a0:701:0::3b",
+      "kavlan-13": "2001:660:4406:4a0:701:0::3b",
+      "kavlan-14": "2001:660:4406:5a0:701:0::3b",
+      "kavlan-16": "2001:660:4406:7a0:701:0::3b",
+      "kavlan-18": "2001:660:4406:8a0:701:0::3b",
+      "kavlan-2": "2001:660:4406:781:1:0::3b",
+      "kavlan-20": "2001:660:4406:3a0:701:0::3b",
+      "kavlan-21": "2001:660:4406:6a0:701:0::3b",
+      "kavlan-3": "2001:660:4406:782:1:0::3b",
+      "kavlan-4": "2001:660:4406:790:1:0::3b",
+      "kavlan-5": "2001:660:4406:791:1:0::3b",
+      "kavlan-6": "2001:660:4406:792:1:0::3b",
+      "kavlan-7": "2001:660:4406:793:1:0::3b",
+      "kavlan-8": "2001:660:4406:794:1:0::3b",
+      "kavlan-9": "2001:660:4406:795:1:0::3b"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::3b",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.59",
-      "ip6": "2001:660:4406:700:1::3b",
+      "ip6": "2001:660:4406:700:1:0::3b",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:03:78",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-6.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-6.json
index 81340577367..beb60ef79bd 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-6.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-6.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::6",
-      "kavlan-11": "2001:660:4406:1a0:701::6",
-      "kavlan-12": "2001:660:4406:2a0:701::6",
-      "kavlan-13": "2001:660:4406:4a0:701::6",
-      "kavlan-14": "2001:660:4406:5a0:701::6",
-      "kavlan-16": "2001:660:4406:7a0:701::6",
-      "kavlan-18": "2001:660:4406:8a0:701::6",
-      "kavlan-2": "2001:660:4406:781:1::6",
-      "kavlan-20": "2001:660:4406:3a0:701::6",
-      "kavlan-21": "2001:660:4406:6a0:701::6",
-      "kavlan-3": "2001:660:4406:782:1::6",
-      "kavlan-4": "2001:660:4406:790:1::6",
-      "kavlan-5": "2001:660:4406:791:1::6",
-      "kavlan-6": "2001:660:4406:792:1::6",
-      "kavlan-7": "2001:660:4406:793:1::6",
-      "kavlan-8": "2001:660:4406:794:1::6",
-      "kavlan-9": "2001:660:4406:795:1::6"
+      "kavlan-1": "2001:660:4406:780:1:0::6",
+      "kavlan-11": "2001:660:4406:1a0:701:0::6",
+      "kavlan-12": "2001:660:4406:2a0:701:0::6",
+      "kavlan-13": "2001:660:4406:4a0:701:0::6",
+      "kavlan-14": "2001:660:4406:5a0:701:0::6",
+      "kavlan-16": "2001:660:4406:7a0:701:0::6",
+      "kavlan-18": "2001:660:4406:8a0:701:0::6",
+      "kavlan-2": "2001:660:4406:781:1:0::6",
+      "kavlan-20": "2001:660:4406:3a0:701:0::6",
+      "kavlan-21": "2001:660:4406:6a0:701:0::6",
+      "kavlan-3": "2001:660:4406:782:1:0::6",
+      "kavlan-4": "2001:660:4406:790:1:0::6",
+      "kavlan-5": "2001:660:4406:791:1:0::6",
+      "kavlan-6": "2001:660:4406:792:1:0::6",
+      "kavlan-7": "2001:660:4406:793:1:0::6",
+      "kavlan-8": "2001:660:4406:794:1:0::6",
+      "kavlan-9": "2001:660:4406:795:1:0::6"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::6",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.6",
-      "ip6": "2001:660:4406:700:1::6",
+      "ip6": "2001:660:4406:700:1:0::6",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f8:70",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-60.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-60.json
index bbeadd6c2ed..c708a6a5bc9 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-60.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-60.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::3c",
-      "kavlan-11": "2001:660:4406:1a0:701::3c",
-      "kavlan-12": "2001:660:4406:2a0:701::3c",
-      "kavlan-13": "2001:660:4406:4a0:701::3c",
-      "kavlan-14": "2001:660:4406:5a0:701::3c",
-      "kavlan-16": "2001:660:4406:7a0:701::3c",
-      "kavlan-18": "2001:660:4406:8a0:701::3c",
-      "kavlan-2": "2001:660:4406:781:1::3c",
-      "kavlan-20": "2001:660:4406:3a0:701::3c",
-      "kavlan-21": "2001:660:4406:6a0:701::3c",
-      "kavlan-3": "2001:660:4406:782:1::3c",
-      "kavlan-4": "2001:660:4406:790:1::3c",
-      "kavlan-5": "2001:660:4406:791:1::3c",
-      "kavlan-6": "2001:660:4406:792:1::3c",
-      "kavlan-7": "2001:660:4406:793:1::3c",
-      "kavlan-8": "2001:660:4406:794:1::3c",
-      "kavlan-9": "2001:660:4406:795:1::3c"
+      "kavlan-1": "2001:660:4406:780:1:0::3c",
+      "kavlan-11": "2001:660:4406:1a0:701:0::3c",
+      "kavlan-12": "2001:660:4406:2a0:701:0::3c",
+      "kavlan-13": "2001:660:4406:4a0:701:0::3c",
+      "kavlan-14": "2001:660:4406:5a0:701:0::3c",
+      "kavlan-16": "2001:660:4406:7a0:701:0::3c",
+      "kavlan-18": "2001:660:4406:8a0:701:0::3c",
+      "kavlan-2": "2001:660:4406:781:1:0::3c",
+      "kavlan-20": "2001:660:4406:3a0:701:0::3c",
+      "kavlan-21": "2001:660:4406:6a0:701:0::3c",
+      "kavlan-3": "2001:660:4406:782:1:0::3c",
+      "kavlan-4": "2001:660:4406:790:1:0::3c",
+      "kavlan-5": "2001:660:4406:791:1:0::3c",
+      "kavlan-6": "2001:660:4406:792:1:0::3c",
+      "kavlan-7": "2001:660:4406:793:1:0::3c",
+      "kavlan-8": "2001:660:4406:794:1:0::3c",
+      "kavlan-9": "2001:660:4406:795:1:0::3c"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::3c",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.60",
-      "ip6": "2001:660:4406:700:1::3c",
+      "ip6": "2001:660:4406:700:1:0::3c",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:80",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-61.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-61.json
index 8b3229cc518..c0a947adfde 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-61.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-61.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::3d",
-      "kavlan-11": "2001:660:4406:1a0:701::3d",
-      "kavlan-12": "2001:660:4406:2a0:701::3d",
-      "kavlan-13": "2001:660:4406:4a0:701::3d",
-      "kavlan-14": "2001:660:4406:5a0:701::3d",
-      "kavlan-16": "2001:660:4406:7a0:701::3d",
-      "kavlan-18": "2001:660:4406:8a0:701::3d",
-      "kavlan-2": "2001:660:4406:781:1::3d",
-      "kavlan-20": "2001:660:4406:3a0:701::3d",
-      "kavlan-21": "2001:660:4406:6a0:701::3d",
-      "kavlan-3": "2001:660:4406:782:1::3d",
-      "kavlan-4": "2001:660:4406:790:1::3d",
-      "kavlan-5": "2001:660:4406:791:1::3d",
-      "kavlan-6": "2001:660:4406:792:1::3d",
-      "kavlan-7": "2001:660:4406:793:1::3d",
-      "kavlan-8": "2001:660:4406:794:1::3d",
-      "kavlan-9": "2001:660:4406:795:1::3d"
+      "kavlan-1": "2001:660:4406:780:1:0::3d",
+      "kavlan-11": "2001:660:4406:1a0:701:0::3d",
+      "kavlan-12": "2001:660:4406:2a0:701:0::3d",
+      "kavlan-13": "2001:660:4406:4a0:701:0::3d",
+      "kavlan-14": "2001:660:4406:5a0:701:0::3d",
+      "kavlan-16": "2001:660:4406:7a0:701:0::3d",
+      "kavlan-18": "2001:660:4406:8a0:701:0::3d",
+      "kavlan-2": "2001:660:4406:781:1:0::3d",
+      "kavlan-20": "2001:660:4406:3a0:701:0::3d",
+      "kavlan-21": "2001:660:4406:6a0:701:0::3d",
+      "kavlan-3": "2001:660:4406:782:1:0::3d",
+      "kavlan-4": "2001:660:4406:790:1:0::3d",
+      "kavlan-5": "2001:660:4406:791:1:0::3d",
+      "kavlan-6": "2001:660:4406:792:1:0::3d",
+      "kavlan-7": "2001:660:4406:793:1:0::3d",
+      "kavlan-8": "2001:660:4406:794:1:0::3d",
+      "kavlan-9": "2001:660:4406:795:1:0::3d"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::3d",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.61",
-      "ip6": "2001:660:4406:700:1::3d",
+      "ip6": "2001:660:4406:700:1:0::3d",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:28",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-62.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-62.json
index d644a0998ce..1e2589c3f70 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-62.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-62.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::3e",
-      "kavlan-11": "2001:660:4406:1a0:701::3e",
-      "kavlan-12": "2001:660:4406:2a0:701::3e",
-      "kavlan-13": "2001:660:4406:4a0:701::3e",
-      "kavlan-14": "2001:660:4406:5a0:701::3e",
-      "kavlan-16": "2001:660:4406:7a0:701::3e",
-      "kavlan-18": "2001:660:4406:8a0:701::3e",
-      "kavlan-2": "2001:660:4406:781:1::3e",
-      "kavlan-20": "2001:660:4406:3a0:701::3e",
-      "kavlan-21": "2001:660:4406:6a0:701::3e",
-      "kavlan-3": "2001:660:4406:782:1::3e",
-      "kavlan-4": "2001:660:4406:790:1::3e",
-      "kavlan-5": "2001:660:4406:791:1::3e",
-      "kavlan-6": "2001:660:4406:792:1::3e",
-      "kavlan-7": "2001:660:4406:793:1::3e",
-      "kavlan-8": "2001:660:4406:794:1::3e",
-      "kavlan-9": "2001:660:4406:795:1::3e"
+      "kavlan-1": "2001:660:4406:780:1:0::3e",
+      "kavlan-11": "2001:660:4406:1a0:701:0::3e",
+      "kavlan-12": "2001:660:4406:2a0:701:0::3e",
+      "kavlan-13": "2001:660:4406:4a0:701:0::3e",
+      "kavlan-14": "2001:660:4406:5a0:701:0::3e",
+      "kavlan-16": "2001:660:4406:7a0:701:0::3e",
+      "kavlan-18": "2001:660:4406:8a0:701:0::3e",
+      "kavlan-2": "2001:660:4406:781:1:0::3e",
+      "kavlan-20": "2001:660:4406:3a0:701:0::3e",
+      "kavlan-21": "2001:660:4406:6a0:701:0::3e",
+      "kavlan-3": "2001:660:4406:782:1:0::3e",
+      "kavlan-4": "2001:660:4406:790:1:0::3e",
+      "kavlan-5": "2001:660:4406:791:1:0::3e",
+      "kavlan-6": "2001:660:4406:792:1:0::3e",
+      "kavlan-7": "2001:660:4406:793:1:0::3e",
+      "kavlan-8": "2001:660:4406:794:1:0::3e",
+      "kavlan-9": "2001:660:4406:795:1:0::3e"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::3e",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.62",
-      "ip6": "2001:660:4406:700:1::3e",
+      "ip6": "2001:660:4406:700:1:0::3e",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:08",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-63.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-63.json
index 45d95dc625f..1d6d9c017d5 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-63.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-63.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::3f",
-      "kavlan-11": "2001:660:4406:1a0:701::3f",
-      "kavlan-12": "2001:660:4406:2a0:701::3f",
-      "kavlan-13": "2001:660:4406:4a0:701::3f",
-      "kavlan-14": "2001:660:4406:5a0:701::3f",
-      "kavlan-16": "2001:660:4406:7a0:701::3f",
-      "kavlan-18": "2001:660:4406:8a0:701::3f",
-      "kavlan-2": "2001:660:4406:781:1::3f",
-      "kavlan-20": "2001:660:4406:3a0:701::3f",
-      "kavlan-21": "2001:660:4406:6a0:701::3f",
-      "kavlan-3": "2001:660:4406:782:1::3f",
-      "kavlan-4": "2001:660:4406:790:1::3f",
-      "kavlan-5": "2001:660:4406:791:1::3f",
-      "kavlan-6": "2001:660:4406:792:1::3f",
-      "kavlan-7": "2001:660:4406:793:1::3f",
-      "kavlan-8": "2001:660:4406:794:1::3f",
-      "kavlan-9": "2001:660:4406:795:1::3f"
+      "kavlan-1": "2001:660:4406:780:1:0::3f",
+      "kavlan-11": "2001:660:4406:1a0:701:0::3f",
+      "kavlan-12": "2001:660:4406:2a0:701:0::3f",
+      "kavlan-13": "2001:660:4406:4a0:701:0::3f",
+      "kavlan-14": "2001:660:4406:5a0:701:0::3f",
+      "kavlan-16": "2001:660:4406:7a0:701:0::3f",
+      "kavlan-18": "2001:660:4406:8a0:701:0::3f",
+      "kavlan-2": "2001:660:4406:781:1:0::3f",
+      "kavlan-20": "2001:660:4406:3a0:701:0::3f",
+      "kavlan-21": "2001:660:4406:6a0:701:0::3f",
+      "kavlan-3": "2001:660:4406:782:1:0::3f",
+      "kavlan-4": "2001:660:4406:790:1:0::3f",
+      "kavlan-5": "2001:660:4406:791:1:0::3f",
+      "kavlan-6": "2001:660:4406:792:1:0::3f",
+      "kavlan-7": "2001:660:4406:793:1:0::3f",
+      "kavlan-8": "2001:660:4406:794:1:0::3f",
+      "kavlan-9": "2001:660:4406:795:1:0::3f"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::3f",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.63",
-      "ip6": "2001:660:4406:700:1::3f",
+      "ip6": "2001:660:4406:700:1:0::3f",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:cb:f0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-64.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-64.json
index 90d60de3931..78fec8bc693 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-64.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-64.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::40",
-      "kavlan-11": "2001:660:4406:1a0:701::40",
-      "kavlan-12": "2001:660:4406:2a0:701::40",
-      "kavlan-13": "2001:660:4406:4a0:701::40",
-      "kavlan-14": "2001:660:4406:5a0:701::40",
-      "kavlan-16": "2001:660:4406:7a0:701::40",
-      "kavlan-18": "2001:660:4406:8a0:701::40",
-      "kavlan-2": "2001:660:4406:781:1::40",
-      "kavlan-20": "2001:660:4406:3a0:701::40",
-      "kavlan-21": "2001:660:4406:6a0:701::40",
-      "kavlan-3": "2001:660:4406:782:1::40",
-      "kavlan-4": "2001:660:4406:790:1::40",
-      "kavlan-5": "2001:660:4406:791:1::40",
-      "kavlan-6": "2001:660:4406:792:1::40",
-      "kavlan-7": "2001:660:4406:793:1::40",
-      "kavlan-8": "2001:660:4406:794:1::40",
-      "kavlan-9": "2001:660:4406:795:1::40"
+      "kavlan-1": "2001:660:4406:780:1:0::40",
+      "kavlan-11": "2001:660:4406:1a0:701:0::40",
+      "kavlan-12": "2001:660:4406:2a0:701:0::40",
+      "kavlan-13": "2001:660:4406:4a0:701:0::40",
+      "kavlan-14": "2001:660:4406:5a0:701:0::40",
+      "kavlan-16": "2001:660:4406:7a0:701:0::40",
+      "kavlan-18": "2001:660:4406:8a0:701:0::40",
+      "kavlan-2": "2001:660:4406:781:1:0::40",
+      "kavlan-20": "2001:660:4406:3a0:701:0::40",
+      "kavlan-21": "2001:660:4406:6a0:701:0::40",
+      "kavlan-3": "2001:660:4406:782:1:0::40",
+      "kavlan-4": "2001:660:4406:790:1:0::40",
+      "kavlan-5": "2001:660:4406:791:1:0::40",
+      "kavlan-6": "2001:660:4406:792:1:0::40",
+      "kavlan-7": "2001:660:4406:793:1:0::40",
+      "kavlan-8": "2001:660:4406:794:1:0::40",
+      "kavlan-9": "2001:660:4406:795:1:0::40"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::40",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.64",
-      "ip6": "2001:660:4406:700:1::40",
+      "ip6": "2001:660:4406:700:1:0::40",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:28",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-65.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-65.json
index 5a80a68ff90..7e25a8a0752 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-65.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-65.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::41",
-      "kavlan-11": "2001:660:4406:1a0:701::41",
-      "kavlan-12": "2001:660:4406:2a0:701::41",
-      "kavlan-13": "2001:660:4406:4a0:701::41",
-      "kavlan-14": "2001:660:4406:5a0:701::41",
-      "kavlan-16": "2001:660:4406:7a0:701::41",
-      "kavlan-18": "2001:660:4406:8a0:701::41",
-      "kavlan-2": "2001:660:4406:781:1::41",
-      "kavlan-20": "2001:660:4406:3a0:701::41",
-      "kavlan-21": "2001:660:4406:6a0:701::41",
-      "kavlan-3": "2001:660:4406:782:1::41",
-      "kavlan-4": "2001:660:4406:790:1::41",
-      "kavlan-5": "2001:660:4406:791:1::41",
-      "kavlan-6": "2001:660:4406:792:1::41",
-      "kavlan-7": "2001:660:4406:793:1::41",
-      "kavlan-8": "2001:660:4406:794:1::41",
-      "kavlan-9": "2001:660:4406:795:1::41"
+      "kavlan-1": "2001:660:4406:780:1:0::41",
+      "kavlan-11": "2001:660:4406:1a0:701:0::41",
+      "kavlan-12": "2001:660:4406:2a0:701:0::41",
+      "kavlan-13": "2001:660:4406:4a0:701:0::41",
+      "kavlan-14": "2001:660:4406:5a0:701:0::41",
+      "kavlan-16": "2001:660:4406:7a0:701:0::41",
+      "kavlan-18": "2001:660:4406:8a0:701:0::41",
+      "kavlan-2": "2001:660:4406:781:1:0::41",
+      "kavlan-20": "2001:660:4406:3a0:701:0::41",
+      "kavlan-21": "2001:660:4406:6a0:701:0::41",
+      "kavlan-3": "2001:660:4406:782:1:0::41",
+      "kavlan-4": "2001:660:4406:790:1:0::41",
+      "kavlan-5": "2001:660:4406:791:1:0::41",
+      "kavlan-6": "2001:660:4406:792:1:0::41",
+      "kavlan-7": "2001:660:4406:793:1:0::41",
+      "kavlan-8": "2001:660:4406:794:1:0::41",
+      "kavlan-9": "2001:660:4406:795:1:0::41"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::41",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.65",
-      "ip6": "2001:660:4406:700:1::41",
+      "ip6": "2001:660:4406:700:1:0::41",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:02:10",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-66.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-66.json
index 103a5873045..50182d3cb9b 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-66.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-66.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::42",
-      "kavlan-11": "2001:660:4406:1a0:701::42",
-      "kavlan-12": "2001:660:4406:2a0:701::42",
-      "kavlan-13": "2001:660:4406:4a0:701::42",
-      "kavlan-14": "2001:660:4406:5a0:701::42",
-      "kavlan-16": "2001:660:4406:7a0:701::42",
-      "kavlan-18": "2001:660:4406:8a0:701::42",
-      "kavlan-2": "2001:660:4406:781:1::42",
-      "kavlan-20": "2001:660:4406:3a0:701::42",
-      "kavlan-21": "2001:660:4406:6a0:701::42",
-      "kavlan-3": "2001:660:4406:782:1::42",
-      "kavlan-4": "2001:660:4406:790:1::42",
-      "kavlan-5": "2001:660:4406:791:1::42",
-      "kavlan-6": "2001:660:4406:792:1::42",
-      "kavlan-7": "2001:660:4406:793:1::42",
-      "kavlan-8": "2001:660:4406:794:1::42",
-      "kavlan-9": "2001:660:4406:795:1::42"
+      "kavlan-1": "2001:660:4406:780:1:0::42",
+      "kavlan-11": "2001:660:4406:1a0:701:0::42",
+      "kavlan-12": "2001:660:4406:2a0:701:0::42",
+      "kavlan-13": "2001:660:4406:4a0:701:0::42",
+      "kavlan-14": "2001:660:4406:5a0:701:0::42",
+      "kavlan-16": "2001:660:4406:7a0:701:0::42",
+      "kavlan-18": "2001:660:4406:8a0:701:0::42",
+      "kavlan-2": "2001:660:4406:781:1:0::42",
+      "kavlan-20": "2001:660:4406:3a0:701:0::42",
+      "kavlan-21": "2001:660:4406:6a0:701:0::42",
+      "kavlan-3": "2001:660:4406:782:1:0::42",
+      "kavlan-4": "2001:660:4406:790:1:0::42",
+      "kavlan-5": "2001:660:4406:791:1:0::42",
+      "kavlan-6": "2001:660:4406:792:1:0::42",
+      "kavlan-7": "2001:660:4406:793:1:0::42",
+      "kavlan-8": "2001:660:4406:794:1:0::42",
+      "kavlan-9": "2001:660:4406:795:1:0::42"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::42",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.66",
-      "ip6": "2001:660:4406:700:1::42",
+      "ip6": "2001:660:4406:700:1:0::42",
       "kavlan": true,
       "mac": "ec:f4:bb:cf:74:d8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-67.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-67.json
index 9392dfff9cc..9e2fae45c9c 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-67.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-67.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::43",
-      "kavlan-11": "2001:660:4406:1a0:701::43",
-      "kavlan-12": "2001:660:4406:2a0:701::43",
-      "kavlan-13": "2001:660:4406:4a0:701::43",
-      "kavlan-14": "2001:660:4406:5a0:701::43",
-      "kavlan-16": "2001:660:4406:7a0:701::43",
-      "kavlan-18": "2001:660:4406:8a0:701::43",
-      "kavlan-2": "2001:660:4406:781:1::43",
-      "kavlan-20": "2001:660:4406:3a0:701::43",
-      "kavlan-21": "2001:660:4406:6a0:701::43",
-      "kavlan-3": "2001:660:4406:782:1::43",
-      "kavlan-4": "2001:660:4406:790:1::43",
-      "kavlan-5": "2001:660:4406:791:1::43",
-      "kavlan-6": "2001:660:4406:792:1::43",
-      "kavlan-7": "2001:660:4406:793:1::43",
-      "kavlan-8": "2001:660:4406:794:1::43",
-      "kavlan-9": "2001:660:4406:795:1::43"
+      "kavlan-1": "2001:660:4406:780:1:0::43",
+      "kavlan-11": "2001:660:4406:1a0:701:0::43",
+      "kavlan-12": "2001:660:4406:2a0:701:0::43",
+      "kavlan-13": "2001:660:4406:4a0:701:0::43",
+      "kavlan-14": "2001:660:4406:5a0:701:0::43",
+      "kavlan-16": "2001:660:4406:7a0:701:0::43",
+      "kavlan-18": "2001:660:4406:8a0:701:0::43",
+      "kavlan-2": "2001:660:4406:781:1:0::43",
+      "kavlan-20": "2001:660:4406:3a0:701:0::43",
+      "kavlan-21": "2001:660:4406:6a0:701:0::43",
+      "kavlan-3": "2001:660:4406:782:1:0::43",
+      "kavlan-4": "2001:660:4406:790:1:0::43",
+      "kavlan-5": "2001:660:4406:791:1:0::43",
+      "kavlan-6": "2001:660:4406:792:1:0::43",
+      "kavlan-7": "2001:660:4406:793:1:0::43",
+      "kavlan-8": "2001:660:4406:794:1:0::43",
+      "kavlan-9": "2001:660:4406:795:1:0::43"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::43",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.67",
-      "ip6": "2001:660:4406:700:1::43",
+      "ip6": "2001:660:4406:700:1:0::43",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:f0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-68.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-68.json
index 3be247cd2ea..b4dfbd70622 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-68.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-68.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::44",
-      "kavlan-11": "2001:660:4406:1a0:701::44",
-      "kavlan-12": "2001:660:4406:2a0:701::44",
-      "kavlan-13": "2001:660:4406:4a0:701::44",
-      "kavlan-14": "2001:660:4406:5a0:701::44",
-      "kavlan-16": "2001:660:4406:7a0:701::44",
-      "kavlan-18": "2001:660:4406:8a0:701::44",
-      "kavlan-2": "2001:660:4406:781:1::44",
-      "kavlan-20": "2001:660:4406:3a0:701::44",
-      "kavlan-21": "2001:660:4406:6a0:701::44",
-      "kavlan-3": "2001:660:4406:782:1::44",
-      "kavlan-4": "2001:660:4406:790:1::44",
-      "kavlan-5": "2001:660:4406:791:1::44",
-      "kavlan-6": "2001:660:4406:792:1::44",
-      "kavlan-7": "2001:660:4406:793:1::44",
-      "kavlan-8": "2001:660:4406:794:1::44",
-      "kavlan-9": "2001:660:4406:795:1::44"
+      "kavlan-1": "2001:660:4406:780:1:0::44",
+      "kavlan-11": "2001:660:4406:1a0:701:0::44",
+      "kavlan-12": "2001:660:4406:2a0:701:0::44",
+      "kavlan-13": "2001:660:4406:4a0:701:0::44",
+      "kavlan-14": "2001:660:4406:5a0:701:0::44",
+      "kavlan-16": "2001:660:4406:7a0:701:0::44",
+      "kavlan-18": "2001:660:4406:8a0:701:0::44",
+      "kavlan-2": "2001:660:4406:781:1:0::44",
+      "kavlan-20": "2001:660:4406:3a0:701:0::44",
+      "kavlan-21": "2001:660:4406:6a0:701:0::44",
+      "kavlan-3": "2001:660:4406:782:1:0::44",
+      "kavlan-4": "2001:660:4406:790:1:0::44",
+      "kavlan-5": "2001:660:4406:791:1:0::44",
+      "kavlan-6": "2001:660:4406:792:1:0::44",
+      "kavlan-7": "2001:660:4406:793:1:0::44",
+      "kavlan-8": "2001:660:4406:794:1:0::44",
+      "kavlan-9": "2001:660:4406:795:1:0::44"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::44",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.68",
-      "ip6": "2001:660:4406:700:1::44",
+      "ip6": "2001:660:4406:700:1:0::44",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:e8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-69.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-69.json
index 3d49b177ea3..f916e14cf85 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-69.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-69.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::45",
-      "kavlan-11": "2001:660:4406:1a0:701::45",
-      "kavlan-12": "2001:660:4406:2a0:701::45",
-      "kavlan-13": "2001:660:4406:4a0:701::45",
-      "kavlan-14": "2001:660:4406:5a0:701::45",
-      "kavlan-16": "2001:660:4406:7a0:701::45",
-      "kavlan-18": "2001:660:4406:8a0:701::45",
-      "kavlan-2": "2001:660:4406:781:1::45",
-      "kavlan-20": "2001:660:4406:3a0:701::45",
-      "kavlan-21": "2001:660:4406:6a0:701::45",
-      "kavlan-3": "2001:660:4406:782:1::45",
-      "kavlan-4": "2001:660:4406:790:1::45",
-      "kavlan-5": "2001:660:4406:791:1::45",
-      "kavlan-6": "2001:660:4406:792:1::45",
-      "kavlan-7": "2001:660:4406:793:1::45",
-      "kavlan-8": "2001:660:4406:794:1::45",
-      "kavlan-9": "2001:660:4406:795:1::45"
+      "kavlan-1": "2001:660:4406:780:1:0::45",
+      "kavlan-11": "2001:660:4406:1a0:701:0::45",
+      "kavlan-12": "2001:660:4406:2a0:701:0::45",
+      "kavlan-13": "2001:660:4406:4a0:701:0::45",
+      "kavlan-14": "2001:660:4406:5a0:701:0::45",
+      "kavlan-16": "2001:660:4406:7a0:701:0::45",
+      "kavlan-18": "2001:660:4406:8a0:701:0::45",
+      "kavlan-2": "2001:660:4406:781:1:0::45",
+      "kavlan-20": "2001:660:4406:3a0:701:0::45",
+      "kavlan-21": "2001:660:4406:6a0:701:0::45",
+      "kavlan-3": "2001:660:4406:782:1:0::45",
+      "kavlan-4": "2001:660:4406:790:1:0::45",
+      "kavlan-5": "2001:660:4406:791:1:0::45",
+      "kavlan-6": "2001:660:4406:792:1:0::45",
+      "kavlan-7": "2001:660:4406:793:1:0::45",
+      "kavlan-8": "2001:660:4406:794:1:0::45",
+      "kavlan-9": "2001:660:4406:795:1:0::45"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::45",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.69",
-      "ip6": "2001:660:4406:700:1::45",
+      "ip6": "2001:660:4406:700:1:0::45",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:10",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-7.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-7.json
index 629f1799bdd..79a471ab7c3 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-7.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-7.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::7",
-      "kavlan-11": "2001:660:4406:1a0:701::7",
-      "kavlan-12": "2001:660:4406:2a0:701::7",
-      "kavlan-13": "2001:660:4406:4a0:701::7",
-      "kavlan-14": "2001:660:4406:5a0:701::7",
-      "kavlan-16": "2001:660:4406:7a0:701::7",
-      "kavlan-18": "2001:660:4406:8a0:701::7",
-      "kavlan-2": "2001:660:4406:781:1::7",
-      "kavlan-20": "2001:660:4406:3a0:701::7",
-      "kavlan-21": "2001:660:4406:6a0:701::7",
-      "kavlan-3": "2001:660:4406:782:1::7",
-      "kavlan-4": "2001:660:4406:790:1::7",
-      "kavlan-5": "2001:660:4406:791:1::7",
-      "kavlan-6": "2001:660:4406:792:1::7",
-      "kavlan-7": "2001:660:4406:793:1::7",
-      "kavlan-8": "2001:660:4406:794:1::7",
-      "kavlan-9": "2001:660:4406:795:1::7"
+      "kavlan-1": "2001:660:4406:780:1:0::7",
+      "kavlan-11": "2001:660:4406:1a0:701:0::7",
+      "kavlan-12": "2001:660:4406:2a0:701:0::7",
+      "kavlan-13": "2001:660:4406:4a0:701:0::7",
+      "kavlan-14": "2001:660:4406:5a0:701:0::7",
+      "kavlan-16": "2001:660:4406:7a0:701:0::7",
+      "kavlan-18": "2001:660:4406:8a0:701:0::7",
+      "kavlan-2": "2001:660:4406:781:1:0::7",
+      "kavlan-20": "2001:660:4406:3a0:701:0::7",
+      "kavlan-21": "2001:660:4406:6a0:701:0::7",
+      "kavlan-3": "2001:660:4406:782:1:0::7",
+      "kavlan-4": "2001:660:4406:790:1:0::7",
+      "kavlan-5": "2001:660:4406:791:1:0::7",
+      "kavlan-6": "2001:660:4406:792:1:0::7",
+      "kavlan-7": "2001:660:4406:793:1:0::7",
+      "kavlan-8": "2001:660:4406:794:1:0::7",
+      "kavlan-9": "2001:660:4406:795:1:0::7"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::7",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.7",
-      "ip6": "2001:660:4406:700:1::7",
+      "ip6": "2001:660:4406:700:1:0::7",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f4:08",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-70.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-70.json
index 7cd354f3a2a..f1f695edc6f 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-70.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-70.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::46",
-      "kavlan-11": "2001:660:4406:1a0:701::46",
-      "kavlan-12": "2001:660:4406:2a0:701::46",
-      "kavlan-13": "2001:660:4406:4a0:701::46",
-      "kavlan-14": "2001:660:4406:5a0:701::46",
-      "kavlan-16": "2001:660:4406:7a0:701::46",
-      "kavlan-18": "2001:660:4406:8a0:701::46",
-      "kavlan-2": "2001:660:4406:781:1::46",
-      "kavlan-20": "2001:660:4406:3a0:701::46",
-      "kavlan-21": "2001:660:4406:6a0:701::46",
-      "kavlan-3": "2001:660:4406:782:1::46",
-      "kavlan-4": "2001:660:4406:790:1::46",
-      "kavlan-5": "2001:660:4406:791:1::46",
-      "kavlan-6": "2001:660:4406:792:1::46",
-      "kavlan-7": "2001:660:4406:793:1::46",
-      "kavlan-8": "2001:660:4406:794:1::46",
-      "kavlan-9": "2001:660:4406:795:1::46"
+      "kavlan-1": "2001:660:4406:780:1:0::46",
+      "kavlan-11": "2001:660:4406:1a0:701:0::46",
+      "kavlan-12": "2001:660:4406:2a0:701:0::46",
+      "kavlan-13": "2001:660:4406:4a0:701:0::46",
+      "kavlan-14": "2001:660:4406:5a0:701:0::46",
+      "kavlan-16": "2001:660:4406:7a0:701:0::46",
+      "kavlan-18": "2001:660:4406:8a0:701:0::46",
+      "kavlan-2": "2001:660:4406:781:1:0::46",
+      "kavlan-20": "2001:660:4406:3a0:701:0::46",
+      "kavlan-21": "2001:660:4406:6a0:701:0::46",
+      "kavlan-3": "2001:660:4406:782:1:0::46",
+      "kavlan-4": "2001:660:4406:790:1:0::46",
+      "kavlan-5": "2001:660:4406:791:1:0::46",
+      "kavlan-6": "2001:660:4406:792:1:0::46",
+      "kavlan-7": "2001:660:4406:793:1:0::46",
+      "kavlan-8": "2001:660:4406:794:1:0::46",
+      "kavlan-9": "2001:660:4406:795:1:0::46"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::46",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.70",
-      "ip6": "2001:660:4406:700:1::46",
+      "ip6": "2001:660:4406:700:1:0::46",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:b0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-71.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-71.json
index 7accdfc0a26..121267b1448 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-71.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-71.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::47",
-      "kavlan-11": "2001:660:4406:1a0:701::47",
-      "kavlan-12": "2001:660:4406:2a0:701::47",
-      "kavlan-13": "2001:660:4406:4a0:701::47",
-      "kavlan-14": "2001:660:4406:5a0:701::47",
-      "kavlan-16": "2001:660:4406:7a0:701::47",
-      "kavlan-18": "2001:660:4406:8a0:701::47",
-      "kavlan-2": "2001:660:4406:781:1::47",
-      "kavlan-20": "2001:660:4406:3a0:701::47",
-      "kavlan-21": "2001:660:4406:6a0:701::47",
-      "kavlan-3": "2001:660:4406:782:1::47",
-      "kavlan-4": "2001:660:4406:790:1::47",
-      "kavlan-5": "2001:660:4406:791:1::47",
-      "kavlan-6": "2001:660:4406:792:1::47",
-      "kavlan-7": "2001:660:4406:793:1::47",
-      "kavlan-8": "2001:660:4406:794:1::47",
-      "kavlan-9": "2001:660:4406:795:1::47"
+      "kavlan-1": "2001:660:4406:780:1:0::47",
+      "kavlan-11": "2001:660:4406:1a0:701:0::47",
+      "kavlan-12": "2001:660:4406:2a0:701:0::47",
+      "kavlan-13": "2001:660:4406:4a0:701:0::47",
+      "kavlan-14": "2001:660:4406:5a0:701:0::47",
+      "kavlan-16": "2001:660:4406:7a0:701:0::47",
+      "kavlan-18": "2001:660:4406:8a0:701:0::47",
+      "kavlan-2": "2001:660:4406:781:1:0::47",
+      "kavlan-20": "2001:660:4406:3a0:701:0::47",
+      "kavlan-21": "2001:660:4406:6a0:701:0::47",
+      "kavlan-3": "2001:660:4406:782:1:0::47",
+      "kavlan-4": "2001:660:4406:790:1:0::47",
+      "kavlan-5": "2001:660:4406:791:1:0::47",
+      "kavlan-6": "2001:660:4406:792:1:0::47",
+      "kavlan-7": "2001:660:4406:793:1:0::47",
+      "kavlan-8": "2001:660:4406:794:1:0::47",
+      "kavlan-9": "2001:660:4406:795:1:0::47"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::47",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.71",
-      "ip6": "2001:660:4406:700:1::47",
+      "ip6": "2001:660:4406:700:1:0::47",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:ff:e0",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-72.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-72.json
index 6c1f441d372..32e3cfab12d 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-72.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-72.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::48",
-      "kavlan-11": "2001:660:4406:1a0:701::48",
-      "kavlan-12": "2001:660:4406:2a0:701::48",
-      "kavlan-13": "2001:660:4406:4a0:701::48",
-      "kavlan-14": "2001:660:4406:5a0:701::48",
-      "kavlan-16": "2001:660:4406:7a0:701::48",
-      "kavlan-18": "2001:660:4406:8a0:701::48",
-      "kavlan-2": "2001:660:4406:781:1::48",
-      "kavlan-20": "2001:660:4406:3a0:701::48",
-      "kavlan-21": "2001:660:4406:6a0:701::48",
-      "kavlan-3": "2001:660:4406:782:1::48",
-      "kavlan-4": "2001:660:4406:790:1::48",
-      "kavlan-5": "2001:660:4406:791:1::48",
-      "kavlan-6": "2001:660:4406:792:1::48",
-      "kavlan-7": "2001:660:4406:793:1::48",
-      "kavlan-8": "2001:660:4406:794:1::48",
-      "kavlan-9": "2001:660:4406:795:1::48"
+      "kavlan-1": "2001:660:4406:780:1:0::48",
+      "kavlan-11": "2001:660:4406:1a0:701:0::48",
+      "kavlan-12": "2001:660:4406:2a0:701:0::48",
+      "kavlan-13": "2001:660:4406:4a0:701:0::48",
+      "kavlan-14": "2001:660:4406:5a0:701:0::48",
+      "kavlan-16": "2001:660:4406:7a0:701:0::48",
+      "kavlan-18": "2001:660:4406:8a0:701:0::48",
+      "kavlan-2": "2001:660:4406:781:1:0::48",
+      "kavlan-20": "2001:660:4406:3a0:701:0::48",
+      "kavlan-21": "2001:660:4406:6a0:701:0::48",
+      "kavlan-3": "2001:660:4406:782:1:0::48",
+      "kavlan-4": "2001:660:4406:790:1:0::48",
+      "kavlan-5": "2001:660:4406:791:1:0::48",
+      "kavlan-6": "2001:660:4406:792:1:0::48",
+      "kavlan-7": "2001:660:4406:793:1:0::48",
+      "kavlan-8": "2001:660:4406:794:1:0::48",
+      "kavlan-9": "2001:660:4406:795:1:0::48"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::48",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.72",
-      "ip6": "2001:660:4406:700:1::48",
+      "ip6": "2001:660:4406:700:1:0::48",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:00:d8",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-8.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-8.json
index 2f60055d93d..e07fe1fa2e8 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-8.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-8.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::8",
-      "kavlan-11": "2001:660:4406:1a0:701::8",
-      "kavlan-12": "2001:660:4406:2a0:701::8",
-      "kavlan-13": "2001:660:4406:4a0:701::8",
-      "kavlan-14": "2001:660:4406:5a0:701::8",
-      "kavlan-16": "2001:660:4406:7a0:701::8",
-      "kavlan-18": "2001:660:4406:8a0:701::8",
-      "kavlan-2": "2001:660:4406:781:1::8",
-      "kavlan-20": "2001:660:4406:3a0:701::8",
-      "kavlan-21": "2001:660:4406:6a0:701::8",
-      "kavlan-3": "2001:660:4406:782:1::8",
-      "kavlan-4": "2001:660:4406:790:1::8",
-      "kavlan-5": "2001:660:4406:791:1::8",
-      "kavlan-6": "2001:660:4406:792:1::8",
-      "kavlan-7": "2001:660:4406:793:1::8",
-      "kavlan-8": "2001:660:4406:794:1::8",
-      "kavlan-9": "2001:660:4406:795:1::8"
+      "kavlan-1": "2001:660:4406:780:1:0::8",
+      "kavlan-11": "2001:660:4406:1a0:701:0::8",
+      "kavlan-12": "2001:660:4406:2a0:701:0::8",
+      "kavlan-13": "2001:660:4406:4a0:701:0::8",
+      "kavlan-14": "2001:660:4406:5a0:701:0::8",
+      "kavlan-16": "2001:660:4406:7a0:701:0::8",
+      "kavlan-18": "2001:660:4406:8a0:701:0::8",
+      "kavlan-2": "2001:660:4406:781:1:0::8",
+      "kavlan-20": "2001:660:4406:3a0:701:0::8",
+      "kavlan-21": "2001:660:4406:6a0:701:0::8",
+      "kavlan-3": "2001:660:4406:782:1:0::8",
+      "kavlan-4": "2001:660:4406:790:1:0::8",
+      "kavlan-5": "2001:660:4406:791:1:0::8",
+      "kavlan-6": "2001:660:4406:792:1:0::8",
+      "kavlan-7": "2001:660:4406:793:1:0::8",
+      "kavlan-8": "2001:660:4406:794:1:0::8",
+      "kavlan-9": "2001:660:4406:795:1:0::8"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::8",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.8",
-      "ip6": "2001:660:4406:700:1::8",
+      "ip6": "2001:660:4406:700:1:0::8",
       "kavlan": true,
       "mac": "ec:f4:bb:d1:01:80",
       "management": false,
diff --git a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-9.json b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-9.json
index 340dab55e81..0a6c012f7ee 100644
--- a/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-9.json
+++ b/data/grid5000/sites/rennes/clusters/paravance/nodes/paravance-9.json
@@ -60,23 +60,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:780:1::9",
-      "kavlan-11": "2001:660:4406:1a0:701::9",
-      "kavlan-12": "2001:660:4406:2a0:701::9",
-      "kavlan-13": "2001:660:4406:4a0:701::9",
-      "kavlan-14": "2001:660:4406:5a0:701::9",
-      "kavlan-16": "2001:660:4406:7a0:701::9",
-      "kavlan-18": "2001:660:4406:8a0:701::9",
-      "kavlan-2": "2001:660:4406:781:1::9",
-      "kavlan-20": "2001:660:4406:3a0:701::9",
-      "kavlan-21": "2001:660:4406:6a0:701::9",
-      "kavlan-3": "2001:660:4406:782:1::9",
-      "kavlan-4": "2001:660:4406:790:1::9",
-      "kavlan-5": "2001:660:4406:791:1::9",
-      "kavlan-6": "2001:660:4406:792:1::9",
-      "kavlan-7": "2001:660:4406:793:1::9",
-      "kavlan-8": "2001:660:4406:794:1::9",
-      "kavlan-9": "2001:660:4406:795:1::9"
+      "kavlan-1": "2001:660:4406:780:1:0::9",
+      "kavlan-11": "2001:660:4406:1a0:701:0::9",
+      "kavlan-12": "2001:660:4406:2a0:701:0::9",
+      "kavlan-13": "2001:660:4406:4a0:701:0::9",
+      "kavlan-14": "2001:660:4406:5a0:701:0::9",
+      "kavlan-16": "2001:660:4406:7a0:701:0::9",
+      "kavlan-18": "2001:660:4406:8a0:701:0::9",
+      "kavlan-2": "2001:660:4406:781:1:0::9",
+      "kavlan-20": "2001:660:4406:3a0:701:0::9",
+      "kavlan-21": "2001:660:4406:6a0:701:0::9",
+      "kavlan-3": "2001:660:4406:782:1:0::9",
+      "kavlan-4": "2001:660:4406:790:1:0::9",
+      "kavlan-5": "2001:660:4406:791:1:0::9",
+      "kavlan-6": "2001:660:4406:792:1:0::9",
+      "kavlan-7": "2001:660:4406:793:1:0::9",
+      "kavlan-8": "2001:660:4406:794:1:0::9",
+      "kavlan-9": "2001:660:4406:795:1:0::9"
     },
     "eth1": {
       "kavlan-1": "2001:660:4406:780:1:1::9",
@@ -113,7 +113,7 @@
       "firmware_version": "0x8000095c, 19.0.12",
       "interface": "Ethernet",
       "ip": "172.16.96.9",
-      "ip6": "2001:660:4406:700:1::9",
+      "ip6": "2001:660:4406:700:1:0::9",
       "kavlan": true,
       "mac": "ec:f4:bb:d0:f2:28",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-1.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-1.json
index 9b00b96d07a..300adb94dfb 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-1.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-1.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::1",
-      "kavlan-11": "2001:660:4406:1a0:805::1",
-      "kavlan-12": "2001:660:4406:2a0:805::1",
-      "kavlan-13": "2001:660:4406:4a0:805::1",
-      "kavlan-14": "2001:660:4406:5a0:805::1",
-      "kavlan-16": "2001:660:4406:7a0:805::1",
-      "kavlan-18": "2001:660:4406:8a0:805::1",
-      "kavlan-2": "2001:660:4406:881:5::1",
-      "kavlan-20": "2001:660:4406:3a0:805::1",
-      "kavlan-21": "2001:660:4406:6a0:805::1",
-      "kavlan-3": "2001:660:4406:882:5::1",
-      "kavlan-4": "2001:660:4406:890:5::1",
-      "kavlan-5": "2001:660:4406:891:5::1",
-      "kavlan-6": "2001:660:4406:892:5::1",
-      "kavlan-7": "2001:660:4406:893:5::1",
-      "kavlan-8": "2001:660:4406:894:5::1",
-      "kavlan-9": "2001:660:4406:895:5::1"
+      "kavlan-1": "2001:660:4406:880:5:0::1",
+      "kavlan-11": "2001:660:4406:1a0:805:0::1",
+      "kavlan-12": "2001:660:4406:2a0:805:0::1",
+      "kavlan-13": "2001:660:4406:4a0:805:0::1",
+      "kavlan-14": "2001:660:4406:5a0:805:0::1",
+      "kavlan-16": "2001:660:4406:7a0:805:0::1",
+      "kavlan-18": "2001:660:4406:8a0:805:0::1",
+      "kavlan-2": "2001:660:4406:881:5:0::1",
+      "kavlan-20": "2001:660:4406:3a0:805:0::1",
+      "kavlan-21": "2001:660:4406:6a0:805:0::1",
+      "kavlan-3": "2001:660:4406:882:5:0::1",
+      "kavlan-4": "2001:660:4406:890:5:0::1",
+      "kavlan-5": "2001:660:4406:891:5:0::1",
+      "kavlan-6": "2001:660:4406:892:5:0::1",
+      "kavlan-7": "2001:660:4406:893:5:0::1",
+      "kavlan-8": "2001:660:4406:894:5:0::1",
+      "kavlan-9": "2001:660:4406:895:5:0::1"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.1",
-      "ip6": "2001:660:4406:800:5::1",
+      "ip6": "2001:660:4406:800:5:0::1",
       "kavlan": true,
       "mac": "00:26:6c:f8:38:b8",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-10.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-10.json
index 72bdb1cbc36..18909a23fc4 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-10.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-10.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::a",
-      "kavlan-11": "2001:660:4406:1a0:805::a",
-      "kavlan-12": "2001:660:4406:2a0:805::a",
-      "kavlan-13": "2001:660:4406:4a0:805::a",
-      "kavlan-14": "2001:660:4406:5a0:805::a",
-      "kavlan-16": "2001:660:4406:7a0:805::a",
-      "kavlan-18": "2001:660:4406:8a0:805::a",
-      "kavlan-2": "2001:660:4406:881:5::a",
-      "kavlan-20": "2001:660:4406:3a0:805::a",
-      "kavlan-21": "2001:660:4406:6a0:805::a",
-      "kavlan-3": "2001:660:4406:882:5::a",
-      "kavlan-4": "2001:660:4406:890:5::a",
-      "kavlan-5": "2001:660:4406:891:5::a",
-      "kavlan-6": "2001:660:4406:892:5::a",
-      "kavlan-7": "2001:660:4406:893:5::a",
-      "kavlan-8": "2001:660:4406:894:5::a",
-      "kavlan-9": "2001:660:4406:895:5::a"
+      "kavlan-1": "2001:660:4406:880:5:0::a",
+      "kavlan-11": "2001:660:4406:1a0:805:0::a",
+      "kavlan-12": "2001:660:4406:2a0:805:0::a",
+      "kavlan-13": "2001:660:4406:4a0:805:0::a",
+      "kavlan-14": "2001:660:4406:5a0:805:0::a",
+      "kavlan-16": "2001:660:4406:7a0:805:0::a",
+      "kavlan-18": "2001:660:4406:8a0:805:0::a",
+      "kavlan-2": "2001:660:4406:881:5:0::a",
+      "kavlan-20": "2001:660:4406:3a0:805:0::a",
+      "kavlan-21": "2001:660:4406:6a0:805:0::a",
+      "kavlan-3": "2001:660:4406:882:5:0::a",
+      "kavlan-4": "2001:660:4406:890:5:0::a",
+      "kavlan-5": "2001:660:4406:891:5:0::a",
+      "kavlan-6": "2001:660:4406:892:5:0::a",
+      "kavlan-7": "2001:660:4406:893:5:0::a",
+      "kavlan-8": "2001:660:4406:894:5:0::a",
+      "kavlan-9": "2001:660:4406:895:5:0::a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.10",
-      "ip6": "2001:660:4406:800:5::a",
+      "ip6": "2001:660:4406:800:5:0::a",
       "kavlan": true,
       "mac": "00:26:6c:f8:3e:e8",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-11.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-11.json
index 9ecd05c2160..a9ae5291b63 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-11.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-11.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::b",
-      "kavlan-11": "2001:660:4406:1a0:805::b",
-      "kavlan-12": "2001:660:4406:2a0:805::b",
-      "kavlan-13": "2001:660:4406:4a0:805::b",
-      "kavlan-14": "2001:660:4406:5a0:805::b",
-      "kavlan-16": "2001:660:4406:7a0:805::b",
-      "kavlan-18": "2001:660:4406:8a0:805::b",
-      "kavlan-2": "2001:660:4406:881:5::b",
-      "kavlan-20": "2001:660:4406:3a0:805::b",
-      "kavlan-21": "2001:660:4406:6a0:805::b",
-      "kavlan-3": "2001:660:4406:882:5::b",
-      "kavlan-4": "2001:660:4406:890:5::b",
-      "kavlan-5": "2001:660:4406:891:5::b",
-      "kavlan-6": "2001:660:4406:892:5::b",
-      "kavlan-7": "2001:660:4406:893:5::b",
-      "kavlan-8": "2001:660:4406:894:5::b",
-      "kavlan-9": "2001:660:4406:895:5::b"
+      "kavlan-1": "2001:660:4406:880:5:0::b",
+      "kavlan-11": "2001:660:4406:1a0:805:0::b",
+      "kavlan-12": "2001:660:4406:2a0:805:0::b",
+      "kavlan-13": "2001:660:4406:4a0:805:0::b",
+      "kavlan-14": "2001:660:4406:5a0:805:0::b",
+      "kavlan-16": "2001:660:4406:7a0:805:0::b",
+      "kavlan-18": "2001:660:4406:8a0:805:0::b",
+      "kavlan-2": "2001:660:4406:881:5:0::b",
+      "kavlan-20": "2001:660:4406:3a0:805:0::b",
+      "kavlan-21": "2001:660:4406:6a0:805:0::b",
+      "kavlan-3": "2001:660:4406:882:5:0::b",
+      "kavlan-4": "2001:660:4406:890:5:0::b",
+      "kavlan-5": "2001:660:4406:891:5:0::b",
+      "kavlan-6": "2001:660:4406:892:5:0::b",
+      "kavlan-7": "2001:660:4406:893:5:0::b",
+      "kavlan-8": "2001:660:4406:894:5:0::b",
+      "kavlan-9": "2001:660:4406:895:5:0::b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.11",
-      "ip6": "2001:660:4406:800:5::b",
+      "ip6": "2001:660:4406:800:5:0::b",
       "kavlan": true,
       "mac": "00:26:6c:f8:33:28",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-12.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-12.json
index 37cc692b704..aa22c90ed1d 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-12.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-12.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::c",
-      "kavlan-11": "2001:660:4406:1a0:805::c",
-      "kavlan-12": "2001:660:4406:2a0:805::c",
-      "kavlan-13": "2001:660:4406:4a0:805::c",
-      "kavlan-14": "2001:660:4406:5a0:805::c",
-      "kavlan-16": "2001:660:4406:7a0:805::c",
-      "kavlan-18": "2001:660:4406:8a0:805::c",
-      "kavlan-2": "2001:660:4406:881:5::c",
-      "kavlan-20": "2001:660:4406:3a0:805::c",
-      "kavlan-21": "2001:660:4406:6a0:805::c",
-      "kavlan-3": "2001:660:4406:882:5::c",
-      "kavlan-4": "2001:660:4406:890:5::c",
-      "kavlan-5": "2001:660:4406:891:5::c",
-      "kavlan-6": "2001:660:4406:892:5::c",
-      "kavlan-7": "2001:660:4406:893:5::c",
-      "kavlan-8": "2001:660:4406:894:5::c",
-      "kavlan-9": "2001:660:4406:895:5::c"
+      "kavlan-1": "2001:660:4406:880:5:0::c",
+      "kavlan-11": "2001:660:4406:1a0:805:0::c",
+      "kavlan-12": "2001:660:4406:2a0:805:0::c",
+      "kavlan-13": "2001:660:4406:4a0:805:0::c",
+      "kavlan-14": "2001:660:4406:5a0:805:0::c",
+      "kavlan-16": "2001:660:4406:7a0:805:0::c",
+      "kavlan-18": "2001:660:4406:8a0:805:0::c",
+      "kavlan-2": "2001:660:4406:881:5:0::c",
+      "kavlan-20": "2001:660:4406:3a0:805:0::c",
+      "kavlan-21": "2001:660:4406:6a0:805:0::c",
+      "kavlan-3": "2001:660:4406:882:5:0::c",
+      "kavlan-4": "2001:660:4406:890:5:0::c",
+      "kavlan-5": "2001:660:4406:891:5:0::c",
+      "kavlan-6": "2001:660:4406:892:5:0::c",
+      "kavlan-7": "2001:660:4406:893:5:0::c",
+      "kavlan-8": "2001:660:4406:894:5:0::c",
+      "kavlan-9": "2001:660:4406:895:5:0::c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.12",
-      "ip6": "2001:660:4406:800:5::c",
+      "ip6": "2001:660:4406:800:5:0::c",
       "kavlan": true,
       "mac": "00:26:6c:f8:3c:d0",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-14.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-14.json
index f211048c527..f04048d81d2 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-14.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-14.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::e",
-      "kavlan-11": "2001:660:4406:1a0:805::e",
-      "kavlan-12": "2001:660:4406:2a0:805::e",
-      "kavlan-13": "2001:660:4406:4a0:805::e",
-      "kavlan-14": "2001:660:4406:5a0:805::e",
-      "kavlan-16": "2001:660:4406:7a0:805::e",
-      "kavlan-18": "2001:660:4406:8a0:805::e",
-      "kavlan-2": "2001:660:4406:881:5::e",
-      "kavlan-20": "2001:660:4406:3a0:805::e",
-      "kavlan-21": "2001:660:4406:6a0:805::e",
-      "kavlan-3": "2001:660:4406:882:5::e",
-      "kavlan-4": "2001:660:4406:890:5::e",
-      "kavlan-5": "2001:660:4406:891:5::e",
-      "kavlan-6": "2001:660:4406:892:5::e",
-      "kavlan-7": "2001:660:4406:893:5::e",
-      "kavlan-8": "2001:660:4406:894:5::e",
-      "kavlan-9": "2001:660:4406:895:5::e"
+      "kavlan-1": "2001:660:4406:880:5:0::e",
+      "kavlan-11": "2001:660:4406:1a0:805:0::e",
+      "kavlan-12": "2001:660:4406:2a0:805:0::e",
+      "kavlan-13": "2001:660:4406:4a0:805:0::e",
+      "kavlan-14": "2001:660:4406:5a0:805:0::e",
+      "kavlan-16": "2001:660:4406:7a0:805:0::e",
+      "kavlan-18": "2001:660:4406:8a0:805:0::e",
+      "kavlan-2": "2001:660:4406:881:5:0::e",
+      "kavlan-20": "2001:660:4406:3a0:805:0::e",
+      "kavlan-21": "2001:660:4406:6a0:805:0::e",
+      "kavlan-3": "2001:660:4406:882:5:0::e",
+      "kavlan-4": "2001:660:4406:890:5:0::e",
+      "kavlan-5": "2001:660:4406:891:5:0::e",
+      "kavlan-6": "2001:660:4406:892:5:0::e",
+      "kavlan-7": "2001:660:4406:893:5:0::e",
+      "kavlan-8": "2001:660:4406:894:5:0::e",
+      "kavlan-9": "2001:660:4406:895:5:0::e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.14",
-      "ip6": "2001:660:4406:800:5::e",
+      "ip6": "2001:660:4406:800:5:0::e",
       "kavlan": true,
       "mac": "00:26:6c:f8:5d:6c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-15.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-15.json
index 8273b0b5df1..4ebc2f098a1 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-15.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-15.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::f",
-      "kavlan-11": "2001:660:4406:1a0:805::f",
-      "kavlan-12": "2001:660:4406:2a0:805::f",
-      "kavlan-13": "2001:660:4406:4a0:805::f",
-      "kavlan-14": "2001:660:4406:5a0:805::f",
-      "kavlan-16": "2001:660:4406:7a0:805::f",
-      "kavlan-18": "2001:660:4406:8a0:805::f",
-      "kavlan-2": "2001:660:4406:881:5::f",
-      "kavlan-20": "2001:660:4406:3a0:805::f",
-      "kavlan-21": "2001:660:4406:6a0:805::f",
-      "kavlan-3": "2001:660:4406:882:5::f",
-      "kavlan-4": "2001:660:4406:890:5::f",
-      "kavlan-5": "2001:660:4406:891:5::f",
-      "kavlan-6": "2001:660:4406:892:5::f",
-      "kavlan-7": "2001:660:4406:893:5::f",
-      "kavlan-8": "2001:660:4406:894:5::f",
-      "kavlan-9": "2001:660:4406:895:5::f"
+      "kavlan-1": "2001:660:4406:880:5:0::f",
+      "kavlan-11": "2001:660:4406:1a0:805:0::f",
+      "kavlan-12": "2001:660:4406:2a0:805:0::f",
+      "kavlan-13": "2001:660:4406:4a0:805:0::f",
+      "kavlan-14": "2001:660:4406:5a0:805:0::f",
+      "kavlan-16": "2001:660:4406:7a0:805:0::f",
+      "kavlan-18": "2001:660:4406:8a0:805:0::f",
+      "kavlan-2": "2001:660:4406:881:5:0::f",
+      "kavlan-20": "2001:660:4406:3a0:805:0::f",
+      "kavlan-21": "2001:660:4406:6a0:805:0::f",
+      "kavlan-3": "2001:660:4406:882:5:0::f",
+      "kavlan-4": "2001:660:4406:890:5:0::f",
+      "kavlan-5": "2001:660:4406:891:5:0::f",
+      "kavlan-6": "2001:660:4406:892:5:0::f",
+      "kavlan-7": "2001:660:4406:893:5:0::f",
+      "kavlan-8": "2001:660:4406:894:5:0::f",
+      "kavlan-9": "2001:660:4406:895:5:0::f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.15",
-      "ip6": "2001:660:4406:800:5::f",
+      "ip6": "2001:660:4406:800:5:0::f",
       "kavlan": true,
       "mac": "00:26:6c:f8:2d:78",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-16.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-16.json
index e2218be7631..12e946f9d1f 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-16.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-16.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::10",
-      "kavlan-11": "2001:660:4406:1a0:805::10",
-      "kavlan-12": "2001:660:4406:2a0:805::10",
-      "kavlan-13": "2001:660:4406:4a0:805::10",
-      "kavlan-14": "2001:660:4406:5a0:805::10",
-      "kavlan-16": "2001:660:4406:7a0:805::10",
-      "kavlan-18": "2001:660:4406:8a0:805::10",
-      "kavlan-2": "2001:660:4406:881:5::10",
-      "kavlan-20": "2001:660:4406:3a0:805::10",
-      "kavlan-21": "2001:660:4406:6a0:805::10",
-      "kavlan-3": "2001:660:4406:882:5::10",
-      "kavlan-4": "2001:660:4406:890:5::10",
-      "kavlan-5": "2001:660:4406:891:5::10",
-      "kavlan-6": "2001:660:4406:892:5::10",
-      "kavlan-7": "2001:660:4406:893:5::10",
-      "kavlan-8": "2001:660:4406:894:5::10",
-      "kavlan-9": "2001:660:4406:895:5::10"
+      "kavlan-1": "2001:660:4406:880:5:0::10",
+      "kavlan-11": "2001:660:4406:1a0:805:0::10",
+      "kavlan-12": "2001:660:4406:2a0:805:0::10",
+      "kavlan-13": "2001:660:4406:4a0:805:0::10",
+      "kavlan-14": "2001:660:4406:5a0:805:0::10",
+      "kavlan-16": "2001:660:4406:7a0:805:0::10",
+      "kavlan-18": "2001:660:4406:8a0:805:0::10",
+      "kavlan-2": "2001:660:4406:881:5:0::10",
+      "kavlan-20": "2001:660:4406:3a0:805:0::10",
+      "kavlan-21": "2001:660:4406:6a0:805:0::10",
+      "kavlan-3": "2001:660:4406:882:5:0::10",
+      "kavlan-4": "2001:660:4406:890:5:0::10",
+      "kavlan-5": "2001:660:4406:891:5:0::10",
+      "kavlan-6": "2001:660:4406:892:5:0::10",
+      "kavlan-7": "2001:660:4406:893:5:0::10",
+      "kavlan-8": "2001:660:4406:894:5:0::10",
+      "kavlan-9": "2001:660:4406:895:5:0::10"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.16",
-      "ip6": "2001:660:4406:800:5::10",
+      "ip6": "2001:660:4406:800:5:0::10",
       "kavlan": true,
       "mac": "00:26:6c:f8:2f:c4",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-17.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-17.json
index 431f1b48bc8..95a07eb6355 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-17.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-17.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::11",
-      "kavlan-11": "2001:660:4406:1a0:805::11",
-      "kavlan-12": "2001:660:4406:2a0:805::11",
-      "kavlan-13": "2001:660:4406:4a0:805::11",
-      "kavlan-14": "2001:660:4406:5a0:805::11",
-      "kavlan-16": "2001:660:4406:7a0:805::11",
-      "kavlan-18": "2001:660:4406:8a0:805::11",
-      "kavlan-2": "2001:660:4406:881:5::11",
-      "kavlan-20": "2001:660:4406:3a0:805::11",
-      "kavlan-21": "2001:660:4406:6a0:805::11",
-      "kavlan-3": "2001:660:4406:882:5::11",
-      "kavlan-4": "2001:660:4406:890:5::11",
-      "kavlan-5": "2001:660:4406:891:5::11",
-      "kavlan-6": "2001:660:4406:892:5::11",
-      "kavlan-7": "2001:660:4406:893:5::11",
-      "kavlan-8": "2001:660:4406:894:5::11",
-      "kavlan-9": "2001:660:4406:895:5::11"
+      "kavlan-1": "2001:660:4406:880:5:0::11",
+      "kavlan-11": "2001:660:4406:1a0:805:0::11",
+      "kavlan-12": "2001:660:4406:2a0:805:0::11",
+      "kavlan-13": "2001:660:4406:4a0:805:0::11",
+      "kavlan-14": "2001:660:4406:5a0:805:0::11",
+      "kavlan-16": "2001:660:4406:7a0:805:0::11",
+      "kavlan-18": "2001:660:4406:8a0:805:0::11",
+      "kavlan-2": "2001:660:4406:881:5:0::11",
+      "kavlan-20": "2001:660:4406:3a0:805:0::11",
+      "kavlan-21": "2001:660:4406:6a0:805:0::11",
+      "kavlan-3": "2001:660:4406:882:5:0::11",
+      "kavlan-4": "2001:660:4406:890:5:0::11",
+      "kavlan-5": "2001:660:4406:891:5:0::11",
+      "kavlan-6": "2001:660:4406:892:5:0::11",
+      "kavlan-7": "2001:660:4406:893:5:0::11",
+      "kavlan-8": "2001:660:4406:894:5:0::11",
+      "kavlan-9": "2001:660:4406:895:5:0::11"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.17",
-      "ip6": "2001:660:4406:800:5::11",
+      "ip6": "2001:660:4406:800:5:0::11",
       "kavlan": true,
       "mac": "00:26:6c:f8:31:d4",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-18.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-18.json
index d70130941b1..7fa78f24910 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-18.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-18.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::12",
-      "kavlan-11": "2001:660:4406:1a0:805::12",
-      "kavlan-12": "2001:660:4406:2a0:805::12",
-      "kavlan-13": "2001:660:4406:4a0:805::12",
-      "kavlan-14": "2001:660:4406:5a0:805::12",
-      "kavlan-16": "2001:660:4406:7a0:805::12",
-      "kavlan-18": "2001:660:4406:8a0:805::12",
-      "kavlan-2": "2001:660:4406:881:5::12",
-      "kavlan-20": "2001:660:4406:3a0:805::12",
-      "kavlan-21": "2001:660:4406:6a0:805::12",
-      "kavlan-3": "2001:660:4406:882:5::12",
-      "kavlan-4": "2001:660:4406:890:5::12",
-      "kavlan-5": "2001:660:4406:891:5::12",
-      "kavlan-6": "2001:660:4406:892:5::12",
-      "kavlan-7": "2001:660:4406:893:5::12",
-      "kavlan-8": "2001:660:4406:894:5::12",
-      "kavlan-9": "2001:660:4406:895:5::12"
+      "kavlan-1": "2001:660:4406:880:5:0::12",
+      "kavlan-11": "2001:660:4406:1a0:805:0::12",
+      "kavlan-12": "2001:660:4406:2a0:805:0::12",
+      "kavlan-13": "2001:660:4406:4a0:805:0::12",
+      "kavlan-14": "2001:660:4406:5a0:805:0::12",
+      "kavlan-16": "2001:660:4406:7a0:805:0::12",
+      "kavlan-18": "2001:660:4406:8a0:805:0::12",
+      "kavlan-2": "2001:660:4406:881:5:0::12",
+      "kavlan-20": "2001:660:4406:3a0:805:0::12",
+      "kavlan-21": "2001:660:4406:6a0:805:0::12",
+      "kavlan-3": "2001:660:4406:882:5:0::12",
+      "kavlan-4": "2001:660:4406:890:5:0::12",
+      "kavlan-5": "2001:660:4406:891:5:0::12",
+      "kavlan-6": "2001:660:4406:892:5:0::12",
+      "kavlan-7": "2001:660:4406:893:5:0::12",
+      "kavlan-8": "2001:660:4406:894:5:0::12",
+      "kavlan-9": "2001:660:4406:895:5:0::12"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.18",
-      "ip6": "2001:660:4406:800:5::12",
+      "ip6": "2001:660:4406:800:5:0::12",
       "kavlan": true,
       "mac": "00:26:6c:f8:3e:64",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-19.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-19.json
index 3f1e3563404..b2f2d02a344 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-19.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-19.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::13",
-      "kavlan-11": "2001:660:4406:1a0:805::13",
-      "kavlan-12": "2001:660:4406:2a0:805::13",
-      "kavlan-13": "2001:660:4406:4a0:805::13",
-      "kavlan-14": "2001:660:4406:5a0:805::13",
-      "kavlan-16": "2001:660:4406:7a0:805::13",
-      "kavlan-18": "2001:660:4406:8a0:805::13",
-      "kavlan-2": "2001:660:4406:881:5::13",
-      "kavlan-20": "2001:660:4406:3a0:805::13",
-      "kavlan-21": "2001:660:4406:6a0:805::13",
-      "kavlan-3": "2001:660:4406:882:5::13",
-      "kavlan-4": "2001:660:4406:890:5::13",
-      "kavlan-5": "2001:660:4406:891:5::13",
-      "kavlan-6": "2001:660:4406:892:5::13",
-      "kavlan-7": "2001:660:4406:893:5::13",
-      "kavlan-8": "2001:660:4406:894:5::13",
-      "kavlan-9": "2001:660:4406:895:5::13"
+      "kavlan-1": "2001:660:4406:880:5:0::13",
+      "kavlan-11": "2001:660:4406:1a0:805:0::13",
+      "kavlan-12": "2001:660:4406:2a0:805:0::13",
+      "kavlan-13": "2001:660:4406:4a0:805:0::13",
+      "kavlan-14": "2001:660:4406:5a0:805:0::13",
+      "kavlan-16": "2001:660:4406:7a0:805:0::13",
+      "kavlan-18": "2001:660:4406:8a0:805:0::13",
+      "kavlan-2": "2001:660:4406:881:5:0::13",
+      "kavlan-20": "2001:660:4406:3a0:805:0::13",
+      "kavlan-21": "2001:660:4406:6a0:805:0::13",
+      "kavlan-3": "2001:660:4406:882:5:0::13",
+      "kavlan-4": "2001:660:4406:890:5:0::13",
+      "kavlan-5": "2001:660:4406:891:5:0::13",
+      "kavlan-6": "2001:660:4406:892:5:0::13",
+      "kavlan-7": "2001:660:4406:893:5:0::13",
+      "kavlan-8": "2001:660:4406:894:5:0::13",
+      "kavlan-9": "2001:660:4406:895:5:0::13"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.19",
-      "ip6": "2001:660:4406:800:5::13",
+      "ip6": "2001:660:4406:800:5:0::13",
       "kavlan": true,
       "mac": "00:26:6c:f8:36:ec",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-2.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-2.json
index 1a44a79cb79..f536ca7e26f 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-2.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-2.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::2",
-      "kavlan-11": "2001:660:4406:1a0:805::2",
-      "kavlan-12": "2001:660:4406:2a0:805::2",
-      "kavlan-13": "2001:660:4406:4a0:805::2",
-      "kavlan-14": "2001:660:4406:5a0:805::2",
-      "kavlan-16": "2001:660:4406:7a0:805::2",
-      "kavlan-18": "2001:660:4406:8a0:805::2",
-      "kavlan-2": "2001:660:4406:881:5::2",
-      "kavlan-20": "2001:660:4406:3a0:805::2",
-      "kavlan-21": "2001:660:4406:6a0:805::2",
-      "kavlan-3": "2001:660:4406:882:5::2",
-      "kavlan-4": "2001:660:4406:890:5::2",
-      "kavlan-5": "2001:660:4406:891:5::2",
-      "kavlan-6": "2001:660:4406:892:5::2",
-      "kavlan-7": "2001:660:4406:893:5::2",
-      "kavlan-8": "2001:660:4406:894:5::2",
-      "kavlan-9": "2001:660:4406:895:5::2"
+      "kavlan-1": "2001:660:4406:880:5:0::2",
+      "kavlan-11": "2001:660:4406:1a0:805:0::2",
+      "kavlan-12": "2001:660:4406:2a0:805:0::2",
+      "kavlan-13": "2001:660:4406:4a0:805:0::2",
+      "kavlan-14": "2001:660:4406:5a0:805:0::2",
+      "kavlan-16": "2001:660:4406:7a0:805:0::2",
+      "kavlan-18": "2001:660:4406:8a0:805:0::2",
+      "kavlan-2": "2001:660:4406:881:5:0::2",
+      "kavlan-20": "2001:660:4406:3a0:805:0::2",
+      "kavlan-21": "2001:660:4406:6a0:805:0::2",
+      "kavlan-3": "2001:660:4406:882:5:0::2",
+      "kavlan-4": "2001:660:4406:890:5:0::2",
+      "kavlan-5": "2001:660:4406:891:5:0::2",
+      "kavlan-6": "2001:660:4406:892:5:0::2",
+      "kavlan-7": "2001:660:4406:893:5:0::2",
+      "kavlan-8": "2001:660:4406:894:5:0::2",
+      "kavlan-9": "2001:660:4406:895:5:0::2"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.2",
-      "ip6": "2001:660:4406:800:5::2",
+      "ip6": "2001:660:4406:800:5:0::2",
       "kavlan": true,
       "mac": "00:26:6c:f8:36:90",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-20.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-20.json
index f187cd75cca..a3f78cd96b6 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-20.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-20.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::14",
-      "kavlan-11": "2001:660:4406:1a0:805::14",
-      "kavlan-12": "2001:660:4406:2a0:805::14",
-      "kavlan-13": "2001:660:4406:4a0:805::14",
-      "kavlan-14": "2001:660:4406:5a0:805::14",
-      "kavlan-16": "2001:660:4406:7a0:805::14",
-      "kavlan-18": "2001:660:4406:8a0:805::14",
-      "kavlan-2": "2001:660:4406:881:5::14",
-      "kavlan-20": "2001:660:4406:3a0:805::14",
-      "kavlan-21": "2001:660:4406:6a0:805::14",
-      "kavlan-3": "2001:660:4406:882:5::14",
-      "kavlan-4": "2001:660:4406:890:5::14",
-      "kavlan-5": "2001:660:4406:891:5::14",
-      "kavlan-6": "2001:660:4406:892:5::14",
-      "kavlan-7": "2001:660:4406:893:5::14",
-      "kavlan-8": "2001:660:4406:894:5::14",
-      "kavlan-9": "2001:660:4406:895:5::14"
+      "kavlan-1": "2001:660:4406:880:5:0::14",
+      "kavlan-11": "2001:660:4406:1a0:805:0::14",
+      "kavlan-12": "2001:660:4406:2a0:805:0::14",
+      "kavlan-13": "2001:660:4406:4a0:805:0::14",
+      "kavlan-14": "2001:660:4406:5a0:805:0::14",
+      "kavlan-16": "2001:660:4406:7a0:805:0::14",
+      "kavlan-18": "2001:660:4406:8a0:805:0::14",
+      "kavlan-2": "2001:660:4406:881:5:0::14",
+      "kavlan-20": "2001:660:4406:3a0:805:0::14",
+      "kavlan-21": "2001:660:4406:6a0:805:0::14",
+      "kavlan-3": "2001:660:4406:882:5:0::14",
+      "kavlan-4": "2001:660:4406:890:5:0::14",
+      "kavlan-5": "2001:660:4406:891:5:0::14",
+      "kavlan-6": "2001:660:4406:892:5:0::14",
+      "kavlan-7": "2001:660:4406:893:5:0::14",
+      "kavlan-8": "2001:660:4406:894:5:0::14",
+      "kavlan-9": "2001:660:4406:895:5:0::14"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.20",
-      "ip6": "2001:660:4406:800:5::14",
+      "ip6": "2001:660:4406:800:5:0::14",
       "kavlan": true,
       "mac": "00:26:6c:f8:3d:e8",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-21.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-21.json
index ec6681102d8..f51ff657ff3 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-21.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-21.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::15",
-      "kavlan-11": "2001:660:4406:1a0:805::15",
-      "kavlan-12": "2001:660:4406:2a0:805::15",
-      "kavlan-13": "2001:660:4406:4a0:805::15",
-      "kavlan-14": "2001:660:4406:5a0:805::15",
-      "kavlan-16": "2001:660:4406:7a0:805::15",
-      "kavlan-18": "2001:660:4406:8a0:805::15",
-      "kavlan-2": "2001:660:4406:881:5::15",
-      "kavlan-20": "2001:660:4406:3a0:805::15",
-      "kavlan-21": "2001:660:4406:6a0:805::15",
-      "kavlan-3": "2001:660:4406:882:5::15",
-      "kavlan-4": "2001:660:4406:890:5::15",
-      "kavlan-5": "2001:660:4406:891:5::15",
-      "kavlan-6": "2001:660:4406:892:5::15",
-      "kavlan-7": "2001:660:4406:893:5::15",
-      "kavlan-8": "2001:660:4406:894:5::15",
-      "kavlan-9": "2001:660:4406:895:5::15"
+      "kavlan-1": "2001:660:4406:880:5:0::15",
+      "kavlan-11": "2001:660:4406:1a0:805:0::15",
+      "kavlan-12": "2001:660:4406:2a0:805:0::15",
+      "kavlan-13": "2001:660:4406:4a0:805:0::15",
+      "kavlan-14": "2001:660:4406:5a0:805:0::15",
+      "kavlan-16": "2001:660:4406:7a0:805:0::15",
+      "kavlan-18": "2001:660:4406:8a0:805:0::15",
+      "kavlan-2": "2001:660:4406:881:5:0::15",
+      "kavlan-20": "2001:660:4406:3a0:805:0::15",
+      "kavlan-21": "2001:660:4406:6a0:805:0::15",
+      "kavlan-3": "2001:660:4406:882:5:0::15",
+      "kavlan-4": "2001:660:4406:890:5:0::15",
+      "kavlan-5": "2001:660:4406:891:5:0::15",
+      "kavlan-6": "2001:660:4406:892:5:0::15",
+      "kavlan-7": "2001:660:4406:893:5:0::15",
+      "kavlan-8": "2001:660:4406:894:5:0::15",
+      "kavlan-9": "2001:660:4406:895:5:0::15"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.21",
-      "ip6": "2001:660:4406:800:5::15",
+      "ip6": "2001:660:4406:800:5:0::15",
       "kavlan": true,
       "mac": "00:26:6c:f8:5b:4c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-22.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-22.json
index 72e57051e8a..02b26f31f06 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-22.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-22.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::16",
-      "kavlan-11": "2001:660:4406:1a0:805::16",
-      "kavlan-12": "2001:660:4406:2a0:805::16",
-      "kavlan-13": "2001:660:4406:4a0:805::16",
-      "kavlan-14": "2001:660:4406:5a0:805::16",
-      "kavlan-16": "2001:660:4406:7a0:805::16",
-      "kavlan-18": "2001:660:4406:8a0:805::16",
-      "kavlan-2": "2001:660:4406:881:5::16",
-      "kavlan-20": "2001:660:4406:3a0:805::16",
-      "kavlan-21": "2001:660:4406:6a0:805::16",
-      "kavlan-3": "2001:660:4406:882:5::16",
-      "kavlan-4": "2001:660:4406:890:5::16",
-      "kavlan-5": "2001:660:4406:891:5::16",
-      "kavlan-6": "2001:660:4406:892:5::16",
-      "kavlan-7": "2001:660:4406:893:5::16",
-      "kavlan-8": "2001:660:4406:894:5::16",
-      "kavlan-9": "2001:660:4406:895:5::16"
+      "kavlan-1": "2001:660:4406:880:5:0::16",
+      "kavlan-11": "2001:660:4406:1a0:805:0::16",
+      "kavlan-12": "2001:660:4406:2a0:805:0::16",
+      "kavlan-13": "2001:660:4406:4a0:805:0::16",
+      "kavlan-14": "2001:660:4406:5a0:805:0::16",
+      "kavlan-16": "2001:660:4406:7a0:805:0::16",
+      "kavlan-18": "2001:660:4406:8a0:805:0::16",
+      "kavlan-2": "2001:660:4406:881:5:0::16",
+      "kavlan-20": "2001:660:4406:3a0:805:0::16",
+      "kavlan-21": "2001:660:4406:6a0:805:0::16",
+      "kavlan-3": "2001:660:4406:882:5:0::16",
+      "kavlan-4": "2001:660:4406:890:5:0::16",
+      "kavlan-5": "2001:660:4406:891:5:0::16",
+      "kavlan-6": "2001:660:4406:892:5:0::16",
+      "kavlan-7": "2001:660:4406:893:5:0::16",
+      "kavlan-8": "2001:660:4406:894:5:0::16",
+      "kavlan-9": "2001:660:4406:895:5:0::16"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.22",
-      "ip6": "2001:660:4406:800:5::16",
+      "ip6": "2001:660:4406:800:5:0::16",
       "kavlan": true,
       "mac": "00:26:6c:f8:31:28",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-23.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-23.json
index fd85ea80420..9f2a5f8ed16 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-23.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-23.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::17",
-      "kavlan-11": "2001:660:4406:1a0:805::17",
-      "kavlan-12": "2001:660:4406:2a0:805::17",
-      "kavlan-13": "2001:660:4406:4a0:805::17",
-      "kavlan-14": "2001:660:4406:5a0:805::17",
-      "kavlan-16": "2001:660:4406:7a0:805::17",
-      "kavlan-18": "2001:660:4406:8a0:805::17",
-      "kavlan-2": "2001:660:4406:881:5::17",
-      "kavlan-20": "2001:660:4406:3a0:805::17",
-      "kavlan-21": "2001:660:4406:6a0:805::17",
-      "kavlan-3": "2001:660:4406:882:5::17",
-      "kavlan-4": "2001:660:4406:890:5::17",
-      "kavlan-5": "2001:660:4406:891:5::17",
-      "kavlan-6": "2001:660:4406:892:5::17",
-      "kavlan-7": "2001:660:4406:893:5::17",
-      "kavlan-8": "2001:660:4406:894:5::17",
-      "kavlan-9": "2001:660:4406:895:5::17"
+      "kavlan-1": "2001:660:4406:880:5:0::17",
+      "kavlan-11": "2001:660:4406:1a0:805:0::17",
+      "kavlan-12": "2001:660:4406:2a0:805:0::17",
+      "kavlan-13": "2001:660:4406:4a0:805:0::17",
+      "kavlan-14": "2001:660:4406:5a0:805:0::17",
+      "kavlan-16": "2001:660:4406:7a0:805:0::17",
+      "kavlan-18": "2001:660:4406:8a0:805:0::17",
+      "kavlan-2": "2001:660:4406:881:5:0::17",
+      "kavlan-20": "2001:660:4406:3a0:805:0::17",
+      "kavlan-21": "2001:660:4406:6a0:805:0::17",
+      "kavlan-3": "2001:660:4406:882:5:0::17",
+      "kavlan-4": "2001:660:4406:890:5:0::17",
+      "kavlan-5": "2001:660:4406:891:5:0::17",
+      "kavlan-6": "2001:660:4406:892:5:0::17",
+      "kavlan-7": "2001:660:4406:893:5:0::17",
+      "kavlan-8": "2001:660:4406:894:5:0::17",
+      "kavlan-9": "2001:660:4406:895:5:0::17"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.23",
-      "ip6": "2001:660:4406:800:5::17",
+      "ip6": "2001:660:4406:800:5:0::17",
       "kavlan": true,
       "mac": "00:26:6c:f8:36:48",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-24.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-24.json
index 02e01009edc..edb890fbf4e 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-24.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-24.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::18",
-      "kavlan-11": "2001:660:4406:1a0:805::18",
-      "kavlan-12": "2001:660:4406:2a0:805::18",
-      "kavlan-13": "2001:660:4406:4a0:805::18",
-      "kavlan-14": "2001:660:4406:5a0:805::18",
-      "kavlan-16": "2001:660:4406:7a0:805::18",
-      "kavlan-18": "2001:660:4406:8a0:805::18",
-      "kavlan-2": "2001:660:4406:881:5::18",
-      "kavlan-20": "2001:660:4406:3a0:805::18",
-      "kavlan-21": "2001:660:4406:6a0:805::18",
-      "kavlan-3": "2001:660:4406:882:5::18",
-      "kavlan-4": "2001:660:4406:890:5::18",
-      "kavlan-5": "2001:660:4406:891:5::18",
-      "kavlan-6": "2001:660:4406:892:5::18",
-      "kavlan-7": "2001:660:4406:893:5::18",
-      "kavlan-8": "2001:660:4406:894:5::18",
-      "kavlan-9": "2001:660:4406:895:5::18"
+      "kavlan-1": "2001:660:4406:880:5:0::18",
+      "kavlan-11": "2001:660:4406:1a0:805:0::18",
+      "kavlan-12": "2001:660:4406:2a0:805:0::18",
+      "kavlan-13": "2001:660:4406:4a0:805:0::18",
+      "kavlan-14": "2001:660:4406:5a0:805:0::18",
+      "kavlan-16": "2001:660:4406:7a0:805:0::18",
+      "kavlan-18": "2001:660:4406:8a0:805:0::18",
+      "kavlan-2": "2001:660:4406:881:5:0::18",
+      "kavlan-20": "2001:660:4406:3a0:805:0::18",
+      "kavlan-21": "2001:660:4406:6a0:805:0::18",
+      "kavlan-3": "2001:660:4406:882:5:0::18",
+      "kavlan-4": "2001:660:4406:890:5:0::18",
+      "kavlan-5": "2001:660:4406:891:5:0::18",
+      "kavlan-6": "2001:660:4406:892:5:0::18",
+      "kavlan-7": "2001:660:4406:893:5:0::18",
+      "kavlan-8": "2001:660:4406:894:5:0::18",
+      "kavlan-9": "2001:660:4406:895:5:0::18"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.24",
-      "ip6": "2001:660:4406:800:5::18",
+      "ip6": "2001:660:4406:800:5:0::18",
       "kavlan": true,
       "mac": "00:26:6c:f8:2d:14",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-25.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-25.json
index 7b0e77ac47f..a878ae3b83f 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-25.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-25.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::19",
-      "kavlan-11": "2001:660:4406:1a0:805::19",
-      "kavlan-12": "2001:660:4406:2a0:805::19",
-      "kavlan-13": "2001:660:4406:4a0:805::19",
-      "kavlan-14": "2001:660:4406:5a0:805::19",
-      "kavlan-16": "2001:660:4406:7a0:805::19",
-      "kavlan-18": "2001:660:4406:8a0:805::19",
-      "kavlan-2": "2001:660:4406:881:5::19",
-      "kavlan-20": "2001:660:4406:3a0:805::19",
-      "kavlan-21": "2001:660:4406:6a0:805::19",
-      "kavlan-3": "2001:660:4406:882:5::19",
-      "kavlan-4": "2001:660:4406:890:5::19",
-      "kavlan-5": "2001:660:4406:891:5::19",
-      "kavlan-6": "2001:660:4406:892:5::19",
-      "kavlan-7": "2001:660:4406:893:5::19",
-      "kavlan-8": "2001:660:4406:894:5::19",
-      "kavlan-9": "2001:660:4406:895:5::19"
+      "kavlan-1": "2001:660:4406:880:5:0::19",
+      "kavlan-11": "2001:660:4406:1a0:805:0::19",
+      "kavlan-12": "2001:660:4406:2a0:805:0::19",
+      "kavlan-13": "2001:660:4406:4a0:805:0::19",
+      "kavlan-14": "2001:660:4406:5a0:805:0::19",
+      "kavlan-16": "2001:660:4406:7a0:805:0::19",
+      "kavlan-18": "2001:660:4406:8a0:805:0::19",
+      "kavlan-2": "2001:660:4406:881:5:0::19",
+      "kavlan-20": "2001:660:4406:3a0:805:0::19",
+      "kavlan-21": "2001:660:4406:6a0:805:0::19",
+      "kavlan-3": "2001:660:4406:882:5:0::19",
+      "kavlan-4": "2001:660:4406:890:5:0::19",
+      "kavlan-5": "2001:660:4406:891:5:0::19",
+      "kavlan-6": "2001:660:4406:892:5:0::19",
+      "kavlan-7": "2001:660:4406:893:5:0::19",
+      "kavlan-8": "2001:660:4406:894:5:0::19",
+      "kavlan-9": "2001:660:4406:895:5:0::19"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.25",
-      "ip6": "2001:660:4406:800:5::19",
+      "ip6": "2001:660:4406:800:5:0::19",
       "kavlan": true,
       "mac": "00:26:6c:f8:32:88",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-26.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-26.json
index c4f94bcfc85..27fa8fd5e70 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-26.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-26.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::1a",
-      "kavlan-11": "2001:660:4406:1a0:805::1a",
-      "kavlan-12": "2001:660:4406:2a0:805::1a",
-      "kavlan-13": "2001:660:4406:4a0:805::1a",
-      "kavlan-14": "2001:660:4406:5a0:805::1a",
-      "kavlan-16": "2001:660:4406:7a0:805::1a",
-      "kavlan-18": "2001:660:4406:8a0:805::1a",
-      "kavlan-2": "2001:660:4406:881:5::1a",
-      "kavlan-20": "2001:660:4406:3a0:805::1a",
-      "kavlan-21": "2001:660:4406:6a0:805::1a",
-      "kavlan-3": "2001:660:4406:882:5::1a",
-      "kavlan-4": "2001:660:4406:890:5::1a",
-      "kavlan-5": "2001:660:4406:891:5::1a",
-      "kavlan-6": "2001:660:4406:892:5::1a",
-      "kavlan-7": "2001:660:4406:893:5::1a",
-      "kavlan-8": "2001:660:4406:894:5::1a",
-      "kavlan-9": "2001:660:4406:895:5::1a"
+      "kavlan-1": "2001:660:4406:880:5:0::1a",
+      "kavlan-11": "2001:660:4406:1a0:805:0::1a",
+      "kavlan-12": "2001:660:4406:2a0:805:0::1a",
+      "kavlan-13": "2001:660:4406:4a0:805:0::1a",
+      "kavlan-14": "2001:660:4406:5a0:805:0::1a",
+      "kavlan-16": "2001:660:4406:7a0:805:0::1a",
+      "kavlan-18": "2001:660:4406:8a0:805:0::1a",
+      "kavlan-2": "2001:660:4406:881:5:0::1a",
+      "kavlan-20": "2001:660:4406:3a0:805:0::1a",
+      "kavlan-21": "2001:660:4406:6a0:805:0::1a",
+      "kavlan-3": "2001:660:4406:882:5:0::1a",
+      "kavlan-4": "2001:660:4406:890:5:0::1a",
+      "kavlan-5": "2001:660:4406:891:5:0::1a",
+      "kavlan-6": "2001:660:4406:892:5:0::1a",
+      "kavlan-7": "2001:660:4406:893:5:0::1a",
+      "kavlan-8": "2001:660:4406:894:5:0::1a",
+      "kavlan-9": "2001:660:4406:895:5:0::1a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.26",
-      "ip6": "2001:660:4406:800:5::1a",
+      "ip6": "2001:660:4406:800:5:0::1a",
       "kavlan": true,
       "mac": "00:26:6c:f8:35:88",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-27.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-27.json
index 0af4f79ae46..b8dfcd49c11 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-27.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-27.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::1b",
-      "kavlan-11": "2001:660:4406:1a0:805::1b",
-      "kavlan-12": "2001:660:4406:2a0:805::1b",
-      "kavlan-13": "2001:660:4406:4a0:805::1b",
-      "kavlan-14": "2001:660:4406:5a0:805::1b",
-      "kavlan-16": "2001:660:4406:7a0:805::1b",
-      "kavlan-18": "2001:660:4406:8a0:805::1b",
-      "kavlan-2": "2001:660:4406:881:5::1b",
-      "kavlan-20": "2001:660:4406:3a0:805::1b",
-      "kavlan-21": "2001:660:4406:6a0:805::1b",
-      "kavlan-3": "2001:660:4406:882:5::1b",
-      "kavlan-4": "2001:660:4406:890:5::1b",
-      "kavlan-5": "2001:660:4406:891:5::1b",
-      "kavlan-6": "2001:660:4406:892:5::1b",
-      "kavlan-7": "2001:660:4406:893:5::1b",
-      "kavlan-8": "2001:660:4406:894:5::1b",
-      "kavlan-9": "2001:660:4406:895:5::1b"
+      "kavlan-1": "2001:660:4406:880:5:0::1b",
+      "kavlan-11": "2001:660:4406:1a0:805:0::1b",
+      "kavlan-12": "2001:660:4406:2a0:805:0::1b",
+      "kavlan-13": "2001:660:4406:4a0:805:0::1b",
+      "kavlan-14": "2001:660:4406:5a0:805:0::1b",
+      "kavlan-16": "2001:660:4406:7a0:805:0::1b",
+      "kavlan-18": "2001:660:4406:8a0:805:0::1b",
+      "kavlan-2": "2001:660:4406:881:5:0::1b",
+      "kavlan-20": "2001:660:4406:3a0:805:0::1b",
+      "kavlan-21": "2001:660:4406:6a0:805:0::1b",
+      "kavlan-3": "2001:660:4406:882:5:0::1b",
+      "kavlan-4": "2001:660:4406:890:5:0::1b",
+      "kavlan-5": "2001:660:4406:891:5:0::1b",
+      "kavlan-6": "2001:660:4406:892:5:0::1b",
+      "kavlan-7": "2001:660:4406:893:5:0::1b",
+      "kavlan-8": "2001:660:4406:894:5:0::1b",
+      "kavlan-9": "2001:660:4406:895:5:0::1b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.27",
-      "ip6": "2001:660:4406:800:5::1b",
+      "ip6": "2001:660:4406:800:5:0::1b",
       "kavlan": true,
       "mac": "00:26:6c:f8:3e:ec",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-28.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-28.json
index 6dfafb0213e..c887ecf8566 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-28.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-28.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::1c",
-      "kavlan-11": "2001:660:4406:1a0:805::1c",
-      "kavlan-12": "2001:660:4406:2a0:805::1c",
-      "kavlan-13": "2001:660:4406:4a0:805::1c",
-      "kavlan-14": "2001:660:4406:5a0:805::1c",
-      "kavlan-16": "2001:660:4406:7a0:805::1c",
-      "kavlan-18": "2001:660:4406:8a0:805::1c",
-      "kavlan-2": "2001:660:4406:881:5::1c",
-      "kavlan-20": "2001:660:4406:3a0:805::1c",
-      "kavlan-21": "2001:660:4406:6a0:805::1c",
-      "kavlan-3": "2001:660:4406:882:5::1c",
-      "kavlan-4": "2001:660:4406:890:5::1c",
-      "kavlan-5": "2001:660:4406:891:5::1c",
-      "kavlan-6": "2001:660:4406:892:5::1c",
-      "kavlan-7": "2001:660:4406:893:5::1c",
-      "kavlan-8": "2001:660:4406:894:5::1c",
-      "kavlan-9": "2001:660:4406:895:5::1c"
+      "kavlan-1": "2001:660:4406:880:5:0::1c",
+      "kavlan-11": "2001:660:4406:1a0:805:0::1c",
+      "kavlan-12": "2001:660:4406:2a0:805:0::1c",
+      "kavlan-13": "2001:660:4406:4a0:805:0::1c",
+      "kavlan-14": "2001:660:4406:5a0:805:0::1c",
+      "kavlan-16": "2001:660:4406:7a0:805:0::1c",
+      "kavlan-18": "2001:660:4406:8a0:805:0::1c",
+      "kavlan-2": "2001:660:4406:881:5:0::1c",
+      "kavlan-20": "2001:660:4406:3a0:805:0::1c",
+      "kavlan-21": "2001:660:4406:6a0:805:0::1c",
+      "kavlan-3": "2001:660:4406:882:5:0::1c",
+      "kavlan-4": "2001:660:4406:890:5:0::1c",
+      "kavlan-5": "2001:660:4406:891:5:0::1c",
+      "kavlan-6": "2001:660:4406:892:5:0::1c",
+      "kavlan-7": "2001:660:4406:893:5:0::1c",
+      "kavlan-8": "2001:660:4406:894:5:0::1c",
+      "kavlan-9": "2001:660:4406:895:5:0::1c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.28",
-      "ip6": "2001:660:4406:800:5::1c",
+      "ip6": "2001:660:4406:800:5:0::1c",
       "kavlan": true,
       "mac": "00:26:6c:f8:2e:d4",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-29.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-29.json
index 512d533ed30..6e15aae2788 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-29.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-29.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::1d",
-      "kavlan-11": "2001:660:4406:1a0:805::1d",
-      "kavlan-12": "2001:660:4406:2a0:805::1d",
-      "kavlan-13": "2001:660:4406:4a0:805::1d",
-      "kavlan-14": "2001:660:4406:5a0:805::1d",
-      "kavlan-16": "2001:660:4406:7a0:805::1d",
-      "kavlan-18": "2001:660:4406:8a0:805::1d",
-      "kavlan-2": "2001:660:4406:881:5::1d",
-      "kavlan-20": "2001:660:4406:3a0:805::1d",
-      "kavlan-21": "2001:660:4406:6a0:805::1d",
-      "kavlan-3": "2001:660:4406:882:5::1d",
-      "kavlan-4": "2001:660:4406:890:5::1d",
-      "kavlan-5": "2001:660:4406:891:5::1d",
-      "kavlan-6": "2001:660:4406:892:5::1d",
-      "kavlan-7": "2001:660:4406:893:5::1d",
-      "kavlan-8": "2001:660:4406:894:5::1d",
-      "kavlan-9": "2001:660:4406:895:5::1d"
+      "kavlan-1": "2001:660:4406:880:5:0::1d",
+      "kavlan-11": "2001:660:4406:1a0:805:0::1d",
+      "kavlan-12": "2001:660:4406:2a0:805:0::1d",
+      "kavlan-13": "2001:660:4406:4a0:805:0::1d",
+      "kavlan-14": "2001:660:4406:5a0:805:0::1d",
+      "kavlan-16": "2001:660:4406:7a0:805:0::1d",
+      "kavlan-18": "2001:660:4406:8a0:805:0::1d",
+      "kavlan-2": "2001:660:4406:881:5:0::1d",
+      "kavlan-20": "2001:660:4406:3a0:805:0::1d",
+      "kavlan-21": "2001:660:4406:6a0:805:0::1d",
+      "kavlan-3": "2001:660:4406:882:5:0::1d",
+      "kavlan-4": "2001:660:4406:890:5:0::1d",
+      "kavlan-5": "2001:660:4406:891:5:0::1d",
+      "kavlan-6": "2001:660:4406:892:5:0::1d",
+      "kavlan-7": "2001:660:4406:893:5:0::1d",
+      "kavlan-8": "2001:660:4406:894:5:0::1d",
+      "kavlan-9": "2001:660:4406:895:5:0::1d"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.29",
-      "ip6": "2001:660:4406:800:5::1d",
+      "ip6": "2001:660:4406:800:5:0::1d",
       "kavlan": true,
       "mac": "00:26:6c:f8:3c:54",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-3.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-3.json
index c5b4593bc1e..4e61c48b3ba 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-3.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-3.json
@@ -40,23 +40,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::3",
-      "kavlan-11": "2001:660:4406:1a0:805::3",
-      "kavlan-12": "2001:660:4406:2a0:805::3",
-      "kavlan-13": "2001:660:4406:4a0:805::3",
-      "kavlan-14": "2001:660:4406:5a0:805::3",
-      "kavlan-16": "2001:660:4406:7a0:805::3",
-      "kavlan-18": "2001:660:4406:8a0:805::3",
-      "kavlan-2": "2001:660:4406:881:5::3",
-      "kavlan-20": "2001:660:4406:3a0:805::3",
-      "kavlan-21": "2001:660:4406:6a0:805::3",
-      "kavlan-3": "2001:660:4406:882:5::3",
-      "kavlan-4": "2001:660:4406:890:5::3",
-      "kavlan-5": "2001:660:4406:891:5::3",
-      "kavlan-6": "2001:660:4406:892:5::3",
-      "kavlan-7": "2001:660:4406:893:5::3",
-      "kavlan-8": "2001:660:4406:894:5::3",
-      "kavlan-9": "2001:660:4406:895:5::3"
+      "kavlan-1": "2001:660:4406:880:5:0::3",
+      "kavlan-11": "2001:660:4406:1a0:805:0::3",
+      "kavlan-12": "2001:660:4406:2a0:805:0::3",
+      "kavlan-13": "2001:660:4406:4a0:805:0::3",
+      "kavlan-14": "2001:660:4406:5a0:805:0::3",
+      "kavlan-16": "2001:660:4406:7a0:805:0::3",
+      "kavlan-18": "2001:660:4406:8a0:805:0::3",
+      "kavlan-2": "2001:660:4406:881:5:0::3",
+      "kavlan-20": "2001:660:4406:3a0:805:0::3",
+      "kavlan-21": "2001:660:4406:6a0:805:0::3",
+      "kavlan-3": "2001:660:4406:882:5:0::3",
+      "kavlan-4": "2001:660:4406:890:5:0::3",
+      "kavlan-5": "2001:660:4406:891:5:0::3",
+      "kavlan-6": "2001:660:4406:892:5:0::3",
+      "kavlan-7": "2001:660:4406:893:5:0::3",
+      "kavlan-8": "2001:660:4406:894:5:0::3",
+      "kavlan-9": "2001:660:4406:895:5:0::3"
     }
   },
   "main_memory": {
@@ -73,7 +73,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.16.132.3",
-      "ip6": "2001:660:4406:800:5::3",
+      "ip6": "2001:660:4406:800:5:0::3",
       "kavlan": true,
       "mac": "00:26:6c:fb:8a:2c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-30.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-30.json
index 431b74b5b98..9b71a1fe270 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-30.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-30.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::1e",
-      "kavlan-11": "2001:660:4406:1a0:805::1e",
-      "kavlan-12": "2001:660:4406:2a0:805::1e",
-      "kavlan-13": "2001:660:4406:4a0:805::1e",
-      "kavlan-14": "2001:660:4406:5a0:805::1e",
-      "kavlan-16": "2001:660:4406:7a0:805::1e",
-      "kavlan-18": "2001:660:4406:8a0:805::1e",
-      "kavlan-2": "2001:660:4406:881:5::1e",
-      "kavlan-20": "2001:660:4406:3a0:805::1e",
-      "kavlan-21": "2001:660:4406:6a0:805::1e",
-      "kavlan-3": "2001:660:4406:882:5::1e",
-      "kavlan-4": "2001:660:4406:890:5::1e",
-      "kavlan-5": "2001:660:4406:891:5::1e",
-      "kavlan-6": "2001:660:4406:892:5::1e",
-      "kavlan-7": "2001:660:4406:893:5::1e",
-      "kavlan-8": "2001:660:4406:894:5::1e",
-      "kavlan-9": "2001:660:4406:895:5::1e"
+      "kavlan-1": "2001:660:4406:880:5:0::1e",
+      "kavlan-11": "2001:660:4406:1a0:805:0::1e",
+      "kavlan-12": "2001:660:4406:2a0:805:0::1e",
+      "kavlan-13": "2001:660:4406:4a0:805:0::1e",
+      "kavlan-14": "2001:660:4406:5a0:805:0::1e",
+      "kavlan-16": "2001:660:4406:7a0:805:0::1e",
+      "kavlan-18": "2001:660:4406:8a0:805:0::1e",
+      "kavlan-2": "2001:660:4406:881:5:0::1e",
+      "kavlan-20": "2001:660:4406:3a0:805:0::1e",
+      "kavlan-21": "2001:660:4406:6a0:805:0::1e",
+      "kavlan-3": "2001:660:4406:882:5:0::1e",
+      "kavlan-4": "2001:660:4406:890:5:0::1e",
+      "kavlan-5": "2001:660:4406:891:5:0::1e",
+      "kavlan-6": "2001:660:4406:892:5:0::1e",
+      "kavlan-7": "2001:660:4406:893:5:0::1e",
+      "kavlan-8": "2001:660:4406:894:5:0::1e",
+      "kavlan-9": "2001:660:4406:895:5:0::1e"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.30",
-      "ip6": "2001:660:4406:800:5::1e",
+      "ip6": "2001:660:4406:800:5:0::1e",
       "kavlan": true,
       "mac": "00:26:6c:f8:2e:c0",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-31.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-31.json
index e84b6c5e146..e9e4cff70cf 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-31.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-31.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::1f",
-      "kavlan-11": "2001:660:4406:1a0:805::1f",
-      "kavlan-12": "2001:660:4406:2a0:805::1f",
-      "kavlan-13": "2001:660:4406:4a0:805::1f",
-      "kavlan-14": "2001:660:4406:5a0:805::1f",
-      "kavlan-16": "2001:660:4406:7a0:805::1f",
-      "kavlan-18": "2001:660:4406:8a0:805::1f",
-      "kavlan-2": "2001:660:4406:881:5::1f",
-      "kavlan-20": "2001:660:4406:3a0:805::1f",
-      "kavlan-21": "2001:660:4406:6a0:805::1f",
-      "kavlan-3": "2001:660:4406:882:5::1f",
-      "kavlan-4": "2001:660:4406:890:5::1f",
-      "kavlan-5": "2001:660:4406:891:5::1f",
-      "kavlan-6": "2001:660:4406:892:5::1f",
-      "kavlan-7": "2001:660:4406:893:5::1f",
-      "kavlan-8": "2001:660:4406:894:5::1f",
-      "kavlan-9": "2001:660:4406:895:5::1f"
+      "kavlan-1": "2001:660:4406:880:5:0::1f",
+      "kavlan-11": "2001:660:4406:1a0:805:0::1f",
+      "kavlan-12": "2001:660:4406:2a0:805:0::1f",
+      "kavlan-13": "2001:660:4406:4a0:805:0::1f",
+      "kavlan-14": "2001:660:4406:5a0:805:0::1f",
+      "kavlan-16": "2001:660:4406:7a0:805:0::1f",
+      "kavlan-18": "2001:660:4406:8a0:805:0::1f",
+      "kavlan-2": "2001:660:4406:881:5:0::1f",
+      "kavlan-20": "2001:660:4406:3a0:805:0::1f",
+      "kavlan-21": "2001:660:4406:6a0:805:0::1f",
+      "kavlan-3": "2001:660:4406:882:5:0::1f",
+      "kavlan-4": "2001:660:4406:890:5:0::1f",
+      "kavlan-5": "2001:660:4406:891:5:0::1f",
+      "kavlan-6": "2001:660:4406:892:5:0::1f",
+      "kavlan-7": "2001:660:4406:893:5:0::1f",
+      "kavlan-8": "2001:660:4406:894:5:0::1f",
+      "kavlan-9": "2001:660:4406:895:5:0::1f"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.31",
-      "ip6": "2001:660:4406:800:5::1f",
+      "ip6": "2001:660:4406:800:5:0::1f",
       "kavlan": true,
       "mac": "00:26:6c:f8:32:38",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-32.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-32.json
index 58264ffeabf..5a6768c8c93 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-32.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-32.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::20",
-      "kavlan-11": "2001:660:4406:1a0:805::20",
-      "kavlan-12": "2001:660:4406:2a0:805::20",
-      "kavlan-13": "2001:660:4406:4a0:805::20",
-      "kavlan-14": "2001:660:4406:5a0:805::20",
-      "kavlan-16": "2001:660:4406:7a0:805::20",
-      "kavlan-18": "2001:660:4406:8a0:805::20",
-      "kavlan-2": "2001:660:4406:881:5::20",
-      "kavlan-20": "2001:660:4406:3a0:805::20",
-      "kavlan-21": "2001:660:4406:6a0:805::20",
-      "kavlan-3": "2001:660:4406:882:5::20",
-      "kavlan-4": "2001:660:4406:890:5::20",
-      "kavlan-5": "2001:660:4406:891:5::20",
-      "kavlan-6": "2001:660:4406:892:5::20",
-      "kavlan-7": "2001:660:4406:893:5::20",
-      "kavlan-8": "2001:660:4406:894:5::20",
-      "kavlan-9": "2001:660:4406:895:5::20"
+      "kavlan-1": "2001:660:4406:880:5:0::20",
+      "kavlan-11": "2001:660:4406:1a0:805:0::20",
+      "kavlan-12": "2001:660:4406:2a0:805:0::20",
+      "kavlan-13": "2001:660:4406:4a0:805:0::20",
+      "kavlan-14": "2001:660:4406:5a0:805:0::20",
+      "kavlan-16": "2001:660:4406:7a0:805:0::20",
+      "kavlan-18": "2001:660:4406:8a0:805:0::20",
+      "kavlan-2": "2001:660:4406:881:5:0::20",
+      "kavlan-20": "2001:660:4406:3a0:805:0::20",
+      "kavlan-21": "2001:660:4406:6a0:805:0::20",
+      "kavlan-3": "2001:660:4406:882:5:0::20",
+      "kavlan-4": "2001:660:4406:890:5:0::20",
+      "kavlan-5": "2001:660:4406:891:5:0::20",
+      "kavlan-6": "2001:660:4406:892:5:0::20",
+      "kavlan-7": "2001:660:4406:893:5:0::20",
+      "kavlan-8": "2001:660:4406:894:5:0::20",
+      "kavlan-9": "2001:660:4406:895:5:0::20"
     }
   },
   "main_memory": {
@@ -74,7 +74,7 @@
       "enabled": true,
       "interface": "Ethernet",
       "ip": "172.16.132.32",
-      "ip6": "2001:660:4406:800:5::20",
+      "ip6": "2001:660:4406:800:5:0::20",
       "kavlan": true,
       "mac": "00:26:6c:f3:2e:b0",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-33.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-33.json
index c5ee4cccb09..ba4dadbc7a0 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-33.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-33.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::21",
-      "kavlan-11": "2001:660:4406:1a0:805::21",
-      "kavlan-12": "2001:660:4406:2a0:805::21",
-      "kavlan-13": "2001:660:4406:4a0:805::21",
-      "kavlan-14": "2001:660:4406:5a0:805::21",
-      "kavlan-16": "2001:660:4406:7a0:805::21",
-      "kavlan-18": "2001:660:4406:8a0:805::21",
-      "kavlan-2": "2001:660:4406:881:5::21",
-      "kavlan-20": "2001:660:4406:3a0:805::21",
-      "kavlan-21": "2001:660:4406:6a0:805::21",
-      "kavlan-3": "2001:660:4406:882:5::21",
-      "kavlan-4": "2001:660:4406:890:5::21",
-      "kavlan-5": "2001:660:4406:891:5::21",
-      "kavlan-6": "2001:660:4406:892:5::21",
-      "kavlan-7": "2001:660:4406:893:5::21",
-      "kavlan-8": "2001:660:4406:894:5::21",
-      "kavlan-9": "2001:660:4406:895:5::21"
+      "kavlan-1": "2001:660:4406:880:5:0::21",
+      "kavlan-11": "2001:660:4406:1a0:805:0::21",
+      "kavlan-12": "2001:660:4406:2a0:805:0::21",
+      "kavlan-13": "2001:660:4406:4a0:805:0::21",
+      "kavlan-14": "2001:660:4406:5a0:805:0::21",
+      "kavlan-16": "2001:660:4406:7a0:805:0::21",
+      "kavlan-18": "2001:660:4406:8a0:805:0::21",
+      "kavlan-2": "2001:660:4406:881:5:0::21",
+      "kavlan-20": "2001:660:4406:3a0:805:0::21",
+      "kavlan-21": "2001:660:4406:6a0:805:0::21",
+      "kavlan-3": "2001:660:4406:882:5:0::21",
+      "kavlan-4": "2001:660:4406:890:5:0::21",
+      "kavlan-5": "2001:660:4406:891:5:0::21",
+      "kavlan-6": "2001:660:4406:892:5:0::21",
+      "kavlan-7": "2001:660:4406:893:5:0::21",
+      "kavlan-8": "2001:660:4406:894:5:0::21",
+      "kavlan-9": "2001:660:4406:895:5:0::21"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.33",
-      "ip6": "2001:660:4406:800:5::21",
+      "ip6": "2001:660:4406:800:5:0::21",
       "kavlan": true,
       "mac": "00:26:6c:f8:31:20",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-34.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-34.json
index de0f8562fbd..b6e30caa09c 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-34.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-34.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::22",
-      "kavlan-11": "2001:660:4406:1a0:805::22",
-      "kavlan-12": "2001:660:4406:2a0:805::22",
-      "kavlan-13": "2001:660:4406:4a0:805::22",
-      "kavlan-14": "2001:660:4406:5a0:805::22",
-      "kavlan-16": "2001:660:4406:7a0:805::22",
-      "kavlan-18": "2001:660:4406:8a0:805::22",
-      "kavlan-2": "2001:660:4406:881:5::22",
-      "kavlan-20": "2001:660:4406:3a0:805::22",
-      "kavlan-21": "2001:660:4406:6a0:805::22",
-      "kavlan-3": "2001:660:4406:882:5::22",
-      "kavlan-4": "2001:660:4406:890:5::22",
-      "kavlan-5": "2001:660:4406:891:5::22",
-      "kavlan-6": "2001:660:4406:892:5::22",
-      "kavlan-7": "2001:660:4406:893:5::22",
-      "kavlan-8": "2001:660:4406:894:5::22",
-      "kavlan-9": "2001:660:4406:895:5::22"
+      "kavlan-1": "2001:660:4406:880:5:0::22",
+      "kavlan-11": "2001:660:4406:1a0:805:0::22",
+      "kavlan-12": "2001:660:4406:2a0:805:0::22",
+      "kavlan-13": "2001:660:4406:4a0:805:0::22",
+      "kavlan-14": "2001:660:4406:5a0:805:0::22",
+      "kavlan-16": "2001:660:4406:7a0:805:0::22",
+      "kavlan-18": "2001:660:4406:8a0:805:0::22",
+      "kavlan-2": "2001:660:4406:881:5:0::22",
+      "kavlan-20": "2001:660:4406:3a0:805:0::22",
+      "kavlan-21": "2001:660:4406:6a0:805:0::22",
+      "kavlan-3": "2001:660:4406:882:5:0::22",
+      "kavlan-4": "2001:660:4406:890:5:0::22",
+      "kavlan-5": "2001:660:4406:891:5:0::22",
+      "kavlan-6": "2001:660:4406:892:5:0::22",
+      "kavlan-7": "2001:660:4406:893:5:0::22",
+      "kavlan-8": "2001:660:4406:894:5:0::22",
+      "kavlan-9": "2001:660:4406:895:5:0::22"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.34",
-      "ip6": "2001:660:4406:800:5::22",
+      "ip6": "2001:660:4406:800:5:0::22",
       "kavlan": true,
       "mac": "00:26:6c:f8:5e:40",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-35.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-35.json
index e20194767f6..23a3bc3f758 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-35.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-35.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::23",
-      "kavlan-11": "2001:660:4406:1a0:805::23",
-      "kavlan-12": "2001:660:4406:2a0:805::23",
-      "kavlan-13": "2001:660:4406:4a0:805::23",
-      "kavlan-14": "2001:660:4406:5a0:805::23",
-      "kavlan-16": "2001:660:4406:7a0:805::23",
-      "kavlan-18": "2001:660:4406:8a0:805::23",
-      "kavlan-2": "2001:660:4406:881:5::23",
-      "kavlan-20": "2001:660:4406:3a0:805::23",
-      "kavlan-21": "2001:660:4406:6a0:805::23",
-      "kavlan-3": "2001:660:4406:882:5::23",
-      "kavlan-4": "2001:660:4406:890:5::23",
-      "kavlan-5": "2001:660:4406:891:5::23",
-      "kavlan-6": "2001:660:4406:892:5::23",
-      "kavlan-7": "2001:660:4406:893:5::23",
-      "kavlan-8": "2001:660:4406:894:5::23",
-      "kavlan-9": "2001:660:4406:895:5::23"
+      "kavlan-1": "2001:660:4406:880:5:0::23",
+      "kavlan-11": "2001:660:4406:1a0:805:0::23",
+      "kavlan-12": "2001:660:4406:2a0:805:0::23",
+      "kavlan-13": "2001:660:4406:4a0:805:0::23",
+      "kavlan-14": "2001:660:4406:5a0:805:0::23",
+      "kavlan-16": "2001:660:4406:7a0:805:0::23",
+      "kavlan-18": "2001:660:4406:8a0:805:0::23",
+      "kavlan-2": "2001:660:4406:881:5:0::23",
+      "kavlan-20": "2001:660:4406:3a0:805:0::23",
+      "kavlan-21": "2001:660:4406:6a0:805:0::23",
+      "kavlan-3": "2001:660:4406:882:5:0::23",
+      "kavlan-4": "2001:660:4406:890:5:0::23",
+      "kavlan-5": "2001:660:4406:891:5:0::23",
+      "kavlan-6": "2001:660:4406:892:5:0::23",
+      "kavlan-7": "2001:660:4406:893:5:0::23",
+      "kavlan-8": "2001:660:4406:894:5:0::23",
+      "kavlan-9": "2001:660:4406:895:5:0::23"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.35",
-      "ip6": "2001:660:4406:800:5::23",
+      "ip6": "2001:660:4406:800:5:0::23",
       "kavlan": true,
       "mac": "00:26:6c:f8:31:30",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-36.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-36.json
index ffcb67d3c13..73ae1173ea6 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-36.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-36.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::24",
-      "kavlan-11": "2001:660:4406:1a0:805::24",
-      "kavlan-12": "2001:660:4406:2a0:805::24",
-      "kavlan-13": "2001:660:4406:4a0:805::24",
-      "kavlan-14": "2001:660:4406:5a0:805::24",
-      "kavlan-16": "2001:660:4406:7a0:805::24",
-      "kavlan-18": "2001:660:4406:8a0:805::24",
-      "kavlan-2": "2001:660:4406:881:5::24",
-      "kavlan-20": "2001:660:4406:3a0:805::24",
-      "kavlan-21": "2001:660:4406:6a0:805::24",
-      "kavlan-3": "2001:660:4406:882:5::24",
-      "kavlan-4": "2001:660:4406:890:5::24",
-      "kavlan-5": "2001:660:4406:891:5::24",
-      "kavlan-6": "2001:660:4406:892:5::24",
-      "kavlan-7": "2001:660:4406:893:5::24",
-      "kavlan-8": "2001:660:4406:894:5::24",
-      "kavlan-9": "2001:660:4406:895:5::24"
+      "kavlan-1": "2001:660:4406:880:5:0::24",
+      "kavlan-11": "2001:660:4406:1a0:805:0::24",
+      "kavlan-12": "2001:660:4406:2a0:805:0::24",
+      "kavlan-13": "2001:660:4406:4a0:805:0::24",
+      "kavlan-14": "2001:660:4406:5a0:805:0::24",
+      "kavlan-16": "2001:660:4406:7a0:805:0::24",
+      "kavlan-18": "2001:660:4406:8a0:805:0::24",
+      "kavlan-2": "2001:660:4406:881:5:0::24",
+      "kavlan-20": "2001:660:4406:3a0:805:0::24",
+      "kavlan-21": "2001:660:4406:6a0:805:0::24",
+      "kavlan-3": "2001:660:4406:882:5:0::24",
+      "kavlan-4": "2001:660:4406:890:5:0::24",
+      "kavlan-5": "2001:660:4406:891:5:0::24",
+      "kavlan-6": "2001:660:4406:892:5:0::24",
+      "kavlan-7": "2001:660:4406:893:5:0::24",
+      "kavlan-8": "2001:660:4406:894:5:0::24",
+      "kavlan-9": "2001:660:4406:895:5:0::24"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.36",
-      "ip6": "2001:660:4406:800:5::24",
+      "ip6": "2001:660:4406:800:5:0::24",
       "kavlan": true,
       "mac": "00:26:6c:f8:3f:b8",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-37.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-37.json
index 0887fade375..29bc0ceb4d0 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-37.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-37.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::25",
-      "kavlan-11": "2001:660:4406:1a0:805::25",
-      "kavlan-12": "2001:660:4406:2a0:805::25",
-      "kavlan-13": "2001:660:4406:4a0:805::25",
-      "kavlan-14": "2001:660:4406:5a0:805::25",
-      "kavlan-16": "2001:660:4406:7a0:805::25",
-      "kavlan-18": "2001:660:4406:8a0:805::25",
-      "kavlan-2": "2001:660:4406:881:5::25",
-      "kavlan-20": "2001:660:4406:3a0:805::25",
-      "kavlan-21": "2001:660:4406:6a0:805::25",
-      "kavlan-3": "2001:660:4406:882:5::25",
-      "kavlan-4": "2001:660:4406:890:5::25",
-      "kavlan-5": "2001:660:4406:891:5::25",
-      "kavlan-6": "2001:660:4406:892:5::25",
-      "kavlan-7": "2001:660:4406:893:5::25",
-      "kavlan-8": "2001:660:4406:894:5::25",
-      "kavlan-9": "2001:660:4406:895:5::25"
+      "kavlan-1": "2001:660:4406:880:5:0::25",
+      "kavlan-11": "2001:660:4406:1a0:805:0::25",
+      "kavlan-12": "2001:660:4406:2a0:805:0::25",
+      "kavlan-13": "2001:660:4406:4a0:805:0::25",
+      "kavlan-14": "2001:660:4406:5a0:805:0::25",
+      "kavlan-16": "2001:660:4406:7a0:805:0::25",
+      "kavlan-18": "2001:660:4406:8a0:805:0::25",
+      "kavlan-2": "2001:660:4406:881:5:0::25",
+      "kavlan-20": "2001:660:4406:3a0:805:0::25",
+      "kavlan-21": "2001:660:4406:6a0:805:0::25",
+      "kavlan-3": "2001:660:4406:882:5:0::25",
+      "kavlan-4": "2001:660:4406:890:5:0::25",
+      "kavlan-5": "2001:660:4406:891:5:0::25",
+      "kavlan-6": "2001:660:4406:892:5:0::25",
+      "kavlan-7": "2001:660:4406:893:5:0::25",
+      "kavlan-8": "2001:660:4406:894:5:0::25",
+      "kavlan-9": "2001:660:4406:895:5:0::25"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.37",
-      "ip6": "2001:660:4406:800:5::25",
+      "ip6": "2001:660:4406:800:5:0::25",
       "kavlan": true,
       "mac": "00:26:6c:f8:2f:14",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-38.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-38.json
index bd61d1ba1c4..e65ce7c1b67 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-38.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-38.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::26",
-      "kavlan-11": "2001:660:4406:1a0:805::26",
-      "kavlan-12": "2001:660:4406:2a0:805::26",
-      "kavlan-13": "2001:660:4406:4a0:805::26",
-      "kavlan-14": "2001:660:4406:5a0:805::26",
-      "kavlan-16": "2001:660:4406:7a0:805::26",
-      "kavlan-18": "2001:660:4406:8a0:805::26",
-      "kavlan-2": "2001:660:4406:881:5::26",
-      "kavlan-20": "2001:660:4406:3a0:805::26",
-      "kavlan-21": "2001:660:4406:6a0:805::26",
-      "kavlan-3": "2001:660:4406:882:5::26",
-      "kavlan-4": "2001:660:4406:890:5::26",
-      "kavlan-5": "2001:660:4406:891:5::26",
-      "kavlan-6": "2001:660:4406:892:5::26",
-      "kavlan-7": "2001:660:4406:893:5::26",
-      "kavlan-8": "2001:660:4406:894:5::26",
-      "kavlan-9": "2001:660:4406:895:5::26"
+      "kavlan-1": "2001:660:4406:880:5:0::26",
+      "kavlan-11": "2001:660:4406:1a0:805:0::26",
+      "kavlan-12": "2001:660:4406:2a0:805:0::26",
+      "kavlan-13": "2001:660:4406:4a0:805:0::26",
+      "kavlan-14": "2001:660:4406:5a0:805:0::26",
+      "kavlan-16": "2001:660:4406:7a0:805:0::26",
+      "kavlan-18": "2001:660:4406:8a0:805:0::26",
+      "kavlan-2": "2001:660:4406:881:5:0::26",
+      "kavlan-20": "2001:660:4406:3a0:805:0::26",
+      "kavlan-21": "2001:660:4406:6a0:805:0::26",
+      "kavlan-3": "2001:660:4406:882:5:0::26",
+      "kavlan-4": "2001:660:4406:890:5:0::26",
+      "kavlan-5": "2001:660:4406:891:5:0::26",
+      "kavlan-6": "2001:660:4406:892:5:0::26",
+      "kavlan-7": "2001:660:4406:893:5:0::26",
+      "kavlan-8": "2001:660:4406:894:5:0::26",
+      "kavlan-9": "2001:660:4406:895:5:0::26"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.38",
-      "ip6": "2001:660:4406:800:5::26",
+      "ip6": "2001:660:4406:800:5:0::26",
       "kavlan": true,
       "mac": "00:26:6c:f8:2e:30",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-39.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-39.json
index 4f446e75d08..14b00559222 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-39.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-39.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::27",
-      "kavlan-11": "2001:660:4406:1a0:805::27",
-      "kavlan-12": "2001:660:4406:2a0:805::27",
-      "kavlan-13": "2001:660:4406:4a0:805::27",
-      "kavlan-14": "2001:660:4406:5a0:805::27",
-      "kavlan-16": "2001:660:4406:7a0:805::27",
-      "kavlan-18": "2001:660:4406:8a0:805::27",
-      "kavlan-2": "2001:660:4406:881:5::27",
-      "kavlan-20": "2001:660:4406:3a0:805::27",
-      "kavlan-21": "2001:660:4406:6a0:805::27",
-      "kavlan-3": "2001:660:4406:882:5::27",
-      "kavlan-4": "2001:660:4406:890:5::27",
-      "kavlan-5": "2001:660:4406:891:5::27",
-      "kavlan-6": "2001:660:4406:892:5::27",
-      "kavlan-7": "2001:660:4406:893:5::27",
-      "kavlan-8": "2001:660:4406:894:5::27",
-      "kavlan-9": "2001:660:4406:895:5::27"
+      "kavlan-1": "2001:660:4406:880:5:0::27",
+      "kavlan-11": "2001:660:4406:1a0:805:0::27",
+      "kavlan-12": "2001:660:4406:2a0:805:0::27",
+      "kavlan-13": "2001:660:4406:4a0:805:0::27",
+      "kavlan-14": "2001:660:4406:5a0:805:0::27",
+      "kavlan-16": "2001:660:4406:7a0:805:0::27",
+      "kavlan-18": "2001:660:4406:8a0:805:0::27",
+      "kavlan-2": "2001:660:4406:881:5:0::27",
+      "kavlan-20": "2001:660:4406:3a0:805:0::27",
+      "kavlan-21": "2001:660:4406:6a0:805:0::27",
+      "kavlan-3": "2001:660:4406:882:5:0::27",
+      "kavlan-4": "2001:660:4406:890:5:0::27",
+      "kavlan-5": "2001:660:4406:891:5:0::27",
+      "kavlan-6": "2001:660:4406:892:5:0::27",
+      "kavlan-7": "2001:660:4406:893:5:0::27",
+      "kavlan-8": "2001:660:4406:894:5:0::27",
+      "kavlan-9": "2001:660:4406:895:5:0::27"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.39",
-      "ip6": "2001:660:4406:800:5::27",
+      "ip6": "2001:660:4406:800:5:0::27",
       "kavlan": true,
       "mac": "00:26:6c:f8:58:1c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-4.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-4.json
index 29b7aafcaf0..fa570ed2a73 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-4.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-4.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::4",
-      "kavlan-11": "2001:660:4406:1a0:805::4",
-      "kavlan-12": "2001:660:4406:2a0:805::4",
-      "kavlan-13": "2001:660:4406:4a0:805::4",
-      "kavlan-14": "2001:660:4406:5a0:805::4",
-      "kavlan-16": "2001:660:4406:7a0:805::4",
-      "kavlan-18": "2001:660:4406:8a0:805::4",
-      "kavlan-2": "2001:660:4406:881:5::4",
-      "kavlan-20": "2001:660:4406:3a0:805::4",
-      "kavlan-21": "2001:660:4406:6a0:805::4",
-      "kavlan-3": "2001:660:4406:882:5::4",
-      "kavlan-4": "2001:660:4406:890:5::4",
-      "kavlan-5": "2001:660:4406:891:5::4",
-      "kavlan-6": "2001:660:4406:892:5::4",
-      "kavlan-7": "2001:660:4406:893:5::4",
-      "kavlan-8": "2001:660:4406:894:5::4",
-      "kavlan-9": "2001:660:4406:895:5::4"
+      "kavlan-1": "2001:660:4406:880:5:0::4",
+      "kavlan-11": "2001:660:4406:1a0:805:0::4",
+      "kavlan-12": "2001:660:4406:2a0:805:0::4",
+      "kavlan-13": "2001:660:4406:4a0:805:0::4",
+      "kavlan-14": "2001:660:4406:5a0:805:0::4",
+      "kavlan-16": "2001:660:4406:7a0:805:0::4",
+      "kavlan-18": "2001:660:4406:8a0:805:0::4",
+      "kavlan-2": "2001:660:4406:881:5:0::4",
+      "kavlan-20": "2001:660:4406:3a0:805:0::4",
+      "kavlan-21": "2001:660:4406:6a0:805:0::4",
+      "kavlan-3": "2001:660:4406:882:5:0::4",
+      "kavlan-4": "2001:660:4406:890:5:0::4",
+      "kavlan-5": "2001:660:4406:891:5:0::4",
+      "kavlan-6": "2001:660:4406:892:5:0::4",
+      "kavlan-7": "2001:660:4406:893:5:0::4",
+      "kavlan-8": "2001:660:4406:894:5:0::4",
+      "kavlan-9": "2001:660:4406:895:5:0::4"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.4",
-      "ip6": "2001:660:4406:800:5::4",
+      "ip6": "2001:660:4406:800:5:0::4",
       "kavlan": true,
       "mac": "00:26:6c:f8:2d:c4",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-40.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-40.json
index e772b715e71..aafba19d224 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-40.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-40.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::28",
-      "kavlan-11": "2001:660:4406:1a0:805::28",
-      "kavlan-12": "2001:660:4406:2a0:805::28",
-      "kavlan-13": "2001:660:4406:4a0:805::28",
-      "kavlan-14": "2001:660:4406:5a0:805::28",
-      "kavlan-16": "2001:660:4406:7a0:805::28",
-      "kavlan-18": "2001:660:4406:8a0:805::28",
-      "kavlan-2": "2001:660:4406:881:5::28",
-      "kavlan-20": "2001:660:4406:3a0:805::28",
-      "kavlan-21": "2001:660:4406:6a0:805::28",
-      "kavlan-3": "2001:660:4406:882:5::28",
-      "kavlan-4": "2001:660:4406:890:5::28",
-      "kavlan-5": "2001:660:4406:891:5::28",
-      "kavlan-6": "2001:660:4406:892:5::28",
-      "kavlan-7": "2001:660:4406:893:5::28",
-      "kavlan-8": "2001:660:4406:894:5::28",
-      "kavlan-9": "2001:660:4406:895:5::28"
+      "kavlan-1": "2001:660:4406:880:5:0::28",
+      "kavlan-11": "2001:660:4406:1a0:805:0::28",
+      "kavlan-12": "2001:660:4406:2a0:805:0::28",
+      "kavlan-13": "2001:660:4406:4a0:805:0::28",
+      "kavlan-14": "2001:660:4406:5a0:805:0::28",
+      "kavlan-16": "2001:660:4406:7a0:805:0::28",
+      "kavlan-18": "2001:660:4406:8a0:805:0::28",
+      "kavlan-2": "2001:660:4406:881:5:0::28",
+      "kavlan-20": "2001:660:4406:3a0:805:0::28",
+      "kavlan-21": "2001:660:4406:6a0:805:0::28",
+      "kavlan-3": "2001:660:4406:882:5:0::28",
+      "kavlan-4": "2001:660:4406:890:5:0::28",
+      "kavlan-5": "2001:660:4406:891:5:0::28",
+      "kavlan-6": "2001:660:4406:892:5:0::28",
+      "kavlan-7": "2001:660:4406:893:5:0::28",
+      "kavlan-8": "2001:660:4406:894:5:0::28",
+      "kavlan-9": "2001:660:4406:895:5:0::28"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.40",
-      "ip6": "2001:660:4406:800:5::28",
+      "ip6": "2001:660:4406:800:5:0::28",
       "kavlan": true,
       "mac": "00:26:6c:f8:30:9c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-41.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-41.json
index 00b107d70d5..2995f9fccd7 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-41.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-41.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::29",
-      "kavlan-11": "2001:660:4406:1a0:805::29",
-      "kavlan-12": "2001:660:4406:2a0:805::29",
-      "kavlan-13": "2001:660:4406:4a0:805::29",
-      "kavlan-14": "2001:660:4406:5a0:805::29",
-      "kavlan-16": "2001:660:4406:7a0:805::29",
-      "kavlan-18": "2001:660:4406:8a0:805::29",
-      "kavlan-2": "2001:660:4406:881:5::29",
-      "kavlan-20": "2001:660:4406:3a0:805::29",
-      "kavlan-21": "2001:660:4406:6a0:805::29",
-      "kavlan-3": "2001:660:4406:882:5::29",
-      "kavlan-4": "2001:660:4406:890:5::29",
-      "kavlan-5": "2001:660:4406:891:5::29",
-      "kavlan-6": "2001:660:4406:892:5::29",
-      "kavlan-7": "2001:660:4406:893:5::29",
-      "kavlan-8": "2001:660:4406:894:5::29",
-      "kavlan-9": "2001:660:4406:895:5::29"
+      "kavlan-1": "2001:660:4406:880:5:0::29",
+      "kavlan-11": "2001:660:4406:1a0:805:0::29",
+      "kavlan-12": "2001:660:4406:2a0:805:0::29",
+      "kavlan-13": "2001:660:4406:4a0:805:0::29",
+      "kavlan-14": "2001:660:4406:5a0:805:0::29",
+      "kavlan-16": "2001:660:4406:7a0:805:0::29",
+      "kavlan-18": "2001:660:4406:8a0:805:0::29",
+      "kavlan-2": "2001:660:4406:881:5:0::29",
+      "kavlan-20": "2001:660:4406:3a0:805:0::29",
+      "kavlan-21": "2001:660:4406:6a0:805:0::29",
+      "kavlan-3": "2001:660:4406:882:5:0::29",
+      "kavlan-4": "2001:660:4406:890:5:0::29",
+      "kavlan-5": "2001:660:4406:891:5:0::29",
+      "kavlan-6": "2001:660:4406:892:5:0::29",
+      "kavlan-7": "2001:660:4406:893:5:0::29",
+      "kavlan-8": "2001:660:4406:894:5:0::29",
+      "kavlan-9": "2001:660:4406:895:5:0::29"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.41",
-      "ip6": "2001:660:4406:800:5::29",
+      "ip6": "2001:660:4406:800:5:0::29",
       "kavlan": true,
       "mac": "00:26:6c:f8:35:7c",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-42.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-42.json
index 8995c29a14b..1571d127352 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-42.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-42.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::2a",
-      "kavlan-11": "2001:660:4406:1a0:805::2a",
-      "kavlan-12": "2001:660:4406:2a0:805::2a",
-      "kavlan-13": "2001:660:4406:4a0:805::2a",
-      "kavlan-14": "2001:660:4406:5a0:805::2a",
-      "kavlan-16": "2001:660:4406:7a0:805::2a",
-      "kavlan-18": "2001:660:4406:8a0:805::2a",
-      "kavlan-2": "2001:660:4406:881:5::2a",
-      "kavlan-20": "2001:660:4406:3a0:805::2a",
-      "kavlan-21": "2001:660:4406:6a0:805::2a",
-      "kavlan-3": "2001:660:4406:882:5::2a",
-      "kavlan-4": "2001:660:4406:890:5::2a",
-      "kavlan-5": "2001:660:4406:891:5::2a",
-      "kavlan-6": "2001:660:4406:892:5::2a",
-      "kavlan-7": "2001:660:4406:893:5::2a",
-      "kavlan-8": "2001:660:4406:894:5::2a",
-      "kavlan-9": "2001:660:4406:895:5::2a"
+      "kavlan-1": "2001:660:4406:880:5:0::2a",
+      "kavlan-11": "2001:660:4406:1a0:805:0::2a",
+      "kavlan-12": "2001:660:4406:2a0:805:0::2a",
+      "kavlan-13": "2001:660:4406:4a0:805:0::2a",
+      "kavlan-14": "2001:660:4406:5a0:805:0::2a",
+      "kavlan-16": "2001:660:4406:7a0:805:0::2a",
+      "kavlan-18": "2001:660:4406:8a0:805:0::2a",
+      "kavlan-2": "2001:660:4406:881:5:0::2a",
+      "kavlan-20": "2001:660:4406:3a0:805:0::2a",
+      "kavlan-21": "2001:660:4406:6a0:805:0::2a",
+      "kavlan-3": "2001:660:4406:882:5:0::2a",
+      "kavlan-4": "2001:660:4406:890:5:0::2a",
+      "kavlan-5": "2001:660:4406:891:5:0::2a",
+      "kavlan-6": "2001:660:4406:892:5:0::2a",
+      "kavlan-7": "2001:660:4406:893:5:0::2a",
+      "kavlan-8": "2001:660:4406:894:5:0::2a",
+      "kavlan-9": "2001:660:4406:895:5:0::2a"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.42",
-      "ip6": "2001:660:4406:800:5::2a",
+      "ip6": "2001:660:4406:800:5:0::2a",
       "kavlan": true,
       "mac": "00:26:6c:f8:3d:04",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-43.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-43.json
index 68a114daefd..5d87616b2bd 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-43.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-43.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::2b",
-      "kavlan-11": "2001:660:4406:1a0:805::2b",
-      "kavlan-12": "2001:660:4406:2a0:805::2b",
-      "kavlan-13": "2001:660:4406:4a0:805::2b",
-      "kavlan-14": "2001:660:4406:5a0:805::2b",
-      "kavlan-16": "2001:660:4406:7a0:805::2b",
-      "kavlan-18": "2001:660:4406:8a0:805::2b",
-      "kavlan-2": "2001:660:4406:881:5::2b",
-      "kavlan-20": "2001:660:4406:3a0:805::2b",
-      "kavlan-21": "2001:660:4406:6a0:805::2b",
-      "kavlan-3": "2001:660:4406:882:5::2b",
-      "kavlan-4": "2001:660:4406:890:5::2b",
-      "kavlan-5": "2001:660:4406:891:5::2b",
-      "kavlan-6": "2001:660:4406:892:5::2b",
-      "kavlan-7": "2001:660:4406:893:5::2b",
-      "kavlan-8": "2001:660:4406:894:5::2b",
-      "kavlan-9": "2001:660:4406:895:5::2b"
+      "kavlan-1": "2001:660:4406:880:5:0::2b",
+      "kavlan-11": "2001:660:4406:1a0:805:0::2b",
+      "kavlan-12": "2001:660:4406:2a0:805:0::2b",
+      "kavlan-13": "2001:660:4406:4a0:805:0::2b",
+      "kavlan-14": "2001:660:4406:5a0:805:0::2b",
+      "kavlan-16": "2001:660:4406:7a0:805:0::2b",
+      "kavlan-18": "2001:660:4406:8a0:805:0::2b",
+      "kavlan-2": "2001:660:4406:881:5:0::2b",
+      "kavlan-20": "2001:660:4406:3a0:805:0::2b",
+      "kavlan-21": "2001:660:4406:6a0:805:0::2b",
+      "kavlan-3": "2001:660:4406:882:5:0::2b",
+      "kavlan-4": "2001:660:4406:890:5:0::2b",
+      "kavlan-5": "2001:660:4406:891:5:0::2b",
+      "kavlan-6": "2001:660:4406:892:5:0::2b",
+      "kavlan-7": "2001:660:4406:893:5:0::2b",
+      "kavlan-8": "2001:660:4406:894:5:0::2b",
+      "kavlan-9": "2001:660:4406:895:5:0::2b"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.43",
-      "ip6": "2001:660:4406:800:5::2b",
+      "ip6": "2001:660:4406:800:5:0::2b",
       "kavlan": true,
       "mac": "00:26:6c:f8:58:28",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-44.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-44.json
index 60add99032d..84240c3cd69 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-44.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-44.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::2c",
-      "kavlan-11": "2001:660:4406:1a0:805::2c",
-      "kavlan-12": "2001:660:4406:2a0:805::2c",
-      "kavlan-13": "2001:660:4406:4a0:805::2c",
-      "kavlan-14": "2001:660:4406:5a0:805::2c",
-      "kavlan-16": "2001:660:4406:7a0:805::2c",
-      "kavlan-18": "2001:660:4406:8a0:805::2c",
-      "kavlan-2": "2001:660:4406:881:5::2c",
-      "kavlan-20": "2001:660:4406:3a0:805::2c",
-      "kavlan-21": "2001:660:4406:6a0:805::2c",
-      "kavlan-3": "2001:660:4406:882:5::2c",
-      "kavlan-4": "2001:660:4406:890:5::2c",
-      "kavlan-5": "2001:660:4406:891:5::2c",
-      "kavlan-6": "2001:660:4406:892:5::2c",
-      "kavlan-7": "2001:660:4406:893:5::2c",
-      "kavlan-8": "2001:660:4406:894:5::2c",
-      "kavlan-9": "2001:660:4406:895:5::2c"
+      "kavlan-1": "2001:660:4406:880:5:0::2c",
+      "kavlan-11": "2001:660:4406:1a0:805:0::2c",
+      "kavlan-12": "2001:660:4406:2a0:805:0::2c",
+      "kavlan-13": "2001:660:4406:4a0:805:0::2c",
+      "kavlan-14": "2001:660:4406:5a0:805:0::2c",
+      "kavlan-16": "2001:660:4406:7a0:805:0::2c",
+      "kavlan-18": "2001:660:4406:8a0:805:0::2c",
+      "kavlan-2": "2001:660:4406:881:5:0::2c",
+      "kavlan-20": "2001:660:4406:3a0:805:0::2c",
+      "kavlan-21": "2001:660:4406:6a0:805:0::2c",
+      "kavlan-3": "2001:660:4406:882:5:0::2c",
+      "kavlan-4": "2001:660:4406:890:5:0::2c",
+      "kavlan-5": "2001:660:4406:891:5:0::2c",
+      "kavlan-6": "2001:660:4406:892:5:0::2c",
+      "kavlan-7": "2001:660:4406:893:5:0::2c",
+      "kavlan-8": "2001:660:4406:894:5:0::2c",
+      "kavlan-9": "2001:660:4406:895:5:0::2c"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.44",
-      "ip6": "2001:660:4406:800:5::2c",
+      "ip6": "2001:660:4406:800:5:0::2c",
       "kavlan": true,
       "mac": "00:26:6c:f8:33:38",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-5.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-5.json
index a5e192a1c14..41657c92721 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-5.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-5.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::5",
-      "kavlan-11": "2001:660:4406:1a0:805::5",
-      "kavlan-12": "2001:660:4406:2a0:805::5",
-      "kavlan-13": "2001:660:4406:4a0:805::5",
-      "kavlan-14": "2001:660:4406:5a0:805::5",
-      "kavlan-16": "2001:660:4406:7a0:805::5",
-      "kavlan-18": "2001:660:4406:8a0:805::5",
-      "kavlan-2": "2001:660:4406:881:5::5",
-      "kavlan-20": "2001:660:4406:3a0:805::5",
-      "kavlan-21": "2001:660:4406:6a0:805::5",
-      "kavlan-3": "2001:660:4406:882:5::5",
-      "kavlan-4": "2001:660:4406:890:5::5",
-      "kavlan-5": "2001:660:4406:891:5::5",
-      "kavlan-6": "2001:660:4406:892:5::5",
-      "kavlan-7": "2001:660:4406:893:5::5",
-      "kavlan-8": "2001:660:4406:894:5::5",
-      "kavlan-9": "2001:660:4406:895:5::5"
+      "kavlan-1": "2001:660:4406:880:5:0::5",
+      "kavlan-11": "2001:660:4406:1a0:805:0::5",
+      "kavlan-12": "2001:660:4406:2a0:805:0::5",
+      "kavlan-13": "2001:660:4406:4a0:805:0::5",
+      "kavlan-14": "2001:660:4406:5a0:805:0::5",
+      "kavlan-16": "2001:660:4406:7a0:805:0::5",
+      "kavlan-18": "2001:660:4406:8a0:805:0::5",
+      "kavlan-2": "2001:660:4406:881:5:0::5",
+      "kavlan-20": "2001:660:4406:3a0:805:0::5",
+      "kavlan-21": "2001:660:4406:6a0:805:0::5",
+      "kavlan-3": "2001:660:4406:882:5:0::5",
+      "kavlan-4": "2001:660:4406:890:5:0::5",
+      "kavlan-5": "2001:660:4406:891:5:0::5",
+      "kavlan-6": "2001:660:4406:892:5:0::5",
+      "kavlan-7": "2001:660:4406:893:5:0::5",
+      "kavlan-8": "2001:660:4406:894:5:0::5",
+      "kavlan-9": "2001:660:4406:895:5:0::5"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.5",
-      "ip6": "2001:660:4406:800:5::5",
+      "ip6": "2001:660:4406:800:5:0::5",
       "kavlan": true,
       "mac": "00:26:6c:f8:58:70",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-6.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-6.json
index 9ce08a3e2c6..2c901b4857a 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-6.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-6.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::6",
-      "kavlan-11": "2001:660:4406:1a0:805::6",
-      "kavlan-12": "2001:660:4406:2a0:805::6",
-      "kavlan-13": "2001:660:4406:4a0:805::6",
-      "kavlan-14": "2001:660:4406:5a0:805::6",
-      "kavlan-16": "2001:660:4406:7a0:805::6",
-      "kavlan-18": "2001:660:4406:8a0:805::6",
-      "kavlan-2": "2001:660:4406:881:5::6",
-      "kavlan-20": "2001:660:4406:3a0:805::6",
-      "kavlan-21": "2001:660:4406:6a0:805::6",
-      "kavlan-3": "2001:660:4406:882:5::6",
-      "kavlan-4": "2001:660:4406:890:5::6",
-      "kavlan-5": "2001:660:4406:891:5::6",
-      "kavlan-6": "2001:660:4406:892:5::6",
-      "kavlan-7": "2001:660:4406:893:5::6",
-      "kavlan-8": "2001:660:4406:894:5::6",
-      "kavlan-9": "2001:660:4406:895:5::6"
+      "kavlan-1": "2001:660:4406:880:5:0::6",
+      "kavlan-11": "2001:660:4406:1a0:805:0::6",
+      "kavlan-12": "2001:660:4406:2a0:805:0::6",
+      "kavlan-13": "2001:660:4406:4a0:805:0::6",
+      "kavlan-14": "2001:660:4406:5a0:805:0::6",
+      "kavlan-16": "2001:660:4406:7a0:805:0::6",
+      "kavlan-18": "2001:660:4406:8a0:805:0::6",
+      "kavlan-2": "2001:660:4406:881:5:0::6",
+      "kavlan-20": "2001:660:4406:3a0:805:0::6",
+      "kavlan-21": "2001:660:4406:6a0:805:0::6",
+      "kavlan-3": "2001:660:4406:882:5:0::6",
+      "kavlan-4": "2001:660:4406:890:5:0::6",
+      "kavlan-5": "2001:660:4406:891:5:0::6",
+      "kavlan-6": "2001:660:4406:892:5:0::6",
+      "kavlan-7": "2001:660:4406:893:5:0::6",
+      "kavlan-8": "2001:660:4406:894:5:0::6",
+      "kavlan-9": "2001:660:4406:895:5:0::6"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.6",
-      "ip6": "2001:660:4406:800:5::6",
+      "ip6": "2001:660:4406:800:5:0::6",
       "kavlan": true,
       "mac": "00:26:6c:f8:33:d0",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-7.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-7.json
index b901e79f435..e1340756ae7 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-7.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-7.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::7",
-      "kavlan-11": "2001:660:4406:1a0:805::7",
-      "kavlan-12": "2001:660:4406:2a0:805::7",
-      "kavlan-13": "2001:660:4406:4a0:805::7",
-      "kavlan-14": "2001:660:4406:5a0:805::7",
-      "kavlan-16": "2001:660:4406:7a0:805::7",
-      "kavlan-18": "2001:660:4406:8a0:805::7",
-      "kavlan-2": "2001:660:4406:881:5::7",
-      "kavlan-20": "2001:660:4406:3a0:805::7",
-      "kavlan-21": "2001:660:4406:6a0:805::7",
-      "kavlan-3": "2001:660:4406:882:5::7",
-      "kavlan-4": "2001:660:4406:890:5::7",
-      "kavlan-5": "2001:660:4406:891:5::7",
-      "kavlan-6": "2001:660:4406:892:5::7",
-      "kavlan-7": "2001:660:4406:893:5::7",
-      "kavlan-8": "2001:660:4406:894:5::7",
-      "kavlan-9": "2001:660:4406:895:5::7"
+      "kavlan-1": "2001:660:4406:880:5:0::7",
+      "kavlan-11": "2001:660:4406:1a0:805:0::7",
+      "kavlan-12": "2001:660:4406:2a0:805:0::7",
+      "kavlan-13": "2001:660:4406:4a0:805:0::7",
+      "kavlan-14": "2001:660:4406:5a0:805:0::7",
+      "kavlan-16": "2001:660:4406:7a0:805:0::7",
+      "kavlan-18": "2001:660:4406:8a0:805:0::7",
+      "kavlan-2": "2001:660:4406:881:5:0::7",
+      "kavlan-20": "2001:660:4406:3a0:805:0::7",
+      "kavlan-21": "2001:660:4406:6a0:805:0::7",
+      "kavlan-3": "2001:660:4406:882:5:0::7",
+      "kavlan-4": "2001:660:4406:890:5:0::7",
+      "kavlan-5": "2001:660:4406:891:5:0::7",
+      "kavlan-6": "2001:660:4406:892:5:0::7",
+      "kavlan-7": "2001:660:4406:893:5:0::7",
+      "kavlan-8": "2001:660:4406:894:5:0::7",
+      "kavlan-9": "2001:660:4406:895:5:0::7"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.7",
-      "ip6": "2001:660:4406:800:5::7",
+      "ip6": "2001:660:4406:800:5:0::7",
       "kavlan": true,
       "mac": "00:26:6c:f8:39:00",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-8.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-8.json
index da5d7c1f7a4..c0a773bb436 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-8.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-8.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::8",
-      "kavlan-11": "2001:660:4406:1a0:805::8",
-      "kavlan-12": "2001:660:4406:2a0:805::8",
-      "kavlan-13": "2001:660:4406:4a0:805::8",
-      "kavlan-14": "2001:660:4406:5a0:805::8",
-      "kavlan-16": "2001:660:4406:7a0:805::8",
-      "kavlan-18": "2001:660:4406:8a0:805::8",
-      "kavlan-2": "2001:660:4406:881:5::8",
-      "kavlan-20": "2001:660:4406:3a0:805::8",
-      "kavlan-21": "2001:660:4406:6a0:805::8",
-      "kavlan-3": "2001:660:4406:882:5::8",
-      "kavlan-4": "2001:660:4406:890:5::8",
-      "kavlan-5": "2001:660:4406:891:5::8",
-      "kavlan-6": "2001:660:4406:892:5::8",
-      "kavlan-7": "2001:660:4406:893:5::8",
-      "kavlan-8": "2001:660:4406:894:5::8",
-      "kavlan-9": "2001:660:4406:895:5::8"
+      "kavlan-1": "2001:660:4406:880:5:0::8",
+      "kavlan-11": "2001:660:4406:1a0:805:0::8",
+      "kavlan-12": "2001:660:4406:2a0:805:0::8",
+      "kavlan-13": "2001:660:4406:4a0:805:0::8",
+      "kavlan-14": "2001:660:4406:5a0:805:0::8",
+      "kavlan-16": "2001:660:4406:7a0:805:0::8",
+      "kavlan-18": "2001:660:4406:8a0:805:0::8",
+      "kavlan-2": "2001:660:4406:881:5:0::8",
+      "kavlan-20": "2001:660:4406:3a0:805:0::8",
+      "kavlan-21": "2001:660:4406:6a0:805:0::8",
+      "kavlan-3": "2001:660:4406:882:5:0::8",
+      "kavlan-4": "2001:660:4406:890:5:0::8",
+      "kavlan-5": "2001:660:4406:891:5:0::8",
+      "kavlan-6": "2001:660:4406:892:5:0::8",
+      "kavlan-7": "2001:660:4406:893:5:0::8",
+      "kavlan-8": "2001:660:4406:894:5:0::8",
+      "kavlan-9": "2001:660:4406:895:5:0::8"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.8",
-      "ip6": "2001:660:4406:800:5::8",
+      "ip6": "2001:660:4406:800:5:0::8",
       "kavlan": true,
       "mac": "00:26:6c:f8:3a:14",
       "management": false,
diff --git a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-9.json b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-9.json
index ea76749af81..0058d4cf647 100644
--- a/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-9.json
+++ b/data/grid5000/sites/sophia/clusters/uvb/nodes/uvb-9.json
@@ -41,23 +41,23 @@
   },
   "kavlan6": {
     "eth0": {
-      "kavlan-1": "2001:660:4406:880:5::9",
-      "kavlan-11": "2001:660:4406:1a0:805::9",
-      "kavlan-12": "2001:660:4406:2a0:805::9",
-      "kavlan-13": "2001:660:4406:4a0:805::9",
-      "kavlan-14": "2001:660:4406:5a0:805::9",
-      "kavlan-16": "2001:660:4406:7a0:805::9",
-      "kavlan-18": "2001:660:4406:8a0:805::9",
-      "kavlan-2": "2001:660:4406:881:5::9",
-      "kavlan-20": "2001:660:4406:3a0:805::9",
-      "kavlan-21": "2001:660:4406:6a0:805::9",
-      "kavlan-3": "2001:660:4406:882:5::9",
-      "kavlan-4": "2001:660:4406:890:5::9",
-      "kavlan-5": "2001:660:4406:891:5::9",
-      "kavlan-6": "2001:660:4406:892:5::9",
-      "kavlan-7": "2001:660:4406:893:5::9",
-      "kavlan-8": "2001:660:4406:894:5::9",
-      "kavlan-9": "2001:660:4406:895:5::9"
+      "kavlan-1": "2001:660:4406:880:5:0::9",
+      "kavlan-11": "2001:660:4406:1a0:805:0::9",
+      "kavlan-12": "2001:660:4406:2a0:805:0::9",
+      "kavlan-13": "2001:660:4406:4a0:805:0::9",
+      "kavlan-14": "2001:660:4406:5a0:805:0::9",
+      "kavlan-16": "2001:660:4406:7a0:805:0::9",
+      "kavlan-18": "2001:660:4406:8a0:805:0::9",
+      "kavlan-2": "2001:660:4406:881:5:0::9",
+      "kavlan-20": "2001:660:4406:3a0:805:0::9",
+      "kavlan-21": "2001:660:4406:6a0:805:0::9",
+      "kavlan-3": "2001:660:4406:882:5:0::9",
+      "kavlan-4": "2001:660:4406:890:5:0::9",
+      "kavlan-5": "2001:660:4406:891:5:0::9",
+      "kavlan-6": "2001:660:4406:892:5:0::9",
+      "kavlan-7": "2001:660:4406:893:5:0::9",
+      "kavlan-8": "2001:660:4406:894:5:0::9",
+      "kavlan-9": "2001:660:4406:895:5:0::9"
     }
   },
   "main_memory": {
@@ -75,7 +75,7 @@
       "firmware_version": "1.4.3",
       "interface": "Ethernet",
       "ip": "172.16.132.9",
-      "ip6": "2001:660:4406:800:5::9",
+      "ip6": "2001:660:4406:800:5:0::9",
       "kavlan": true,
       "mac": "00:26:6c:f8:3e:9c",
       "management": false,
-- 
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