From 11bf3121d7937ba20705fc11abfd73c34a430f55 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 8b9a2a14232..83faf7dc589 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 dc34b1ac5bf..647b38d8743 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 e88bd4476bf..6eae95606a4 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 ff4e9a48345..5d47ee49bfb 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 651d197c150..12ebc56e73b 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 60840ed468a..2edbbae1305 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 a7b76e48404..94def37e8ca 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 d5a5f2a727d..f4dc5198034 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 e8535686bc8..6cf92b33d87 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 be732fb6a02..c9af8578b59 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 88d579e91a7..4f6d0d0fdf9 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 d29069867da..3f4ebe0bac6 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 a50a2f985dd..d4fdece71de 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 b74439ea3bb..727b34c5bf1 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 784815e202f..3fa1d332bf3 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 32272fdad44..47a6d14a78b 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 a8dc041dd67..cc71030a725 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 8e3b65da72e..30b8abad17e 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 61752fbd827..28ef9f59ca5 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 f81448b554f..c09e7affa98 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 08d60c88a54..8039b2fb505 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 5be8f7c056f..5e2a13e9515 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 ba78139f019..aa39d172c48 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 08dd1f49c0c..30838fbe239 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 73990e537b4..d9d1b0e3786 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 ee8caedffb5..bc35eec01ed 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 eebbf1003f2..1d078a65db2 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 2f91146f6fa..4e98d6e7e69 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 84eed36339f..6b1b0d6ab92 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 8f7e2385ad5..e01a0680ead 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 45d3999444c..5153d061376 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 5c51b387161..bedbc8ff4dc 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 61754341262..d44ed312d7a 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 7a72c6315f7..a8fa9238338 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 6c6877f98da..28351dbfd52 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 247608258a1..f2c02833ce8 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 70a27813d53..8afbfaa609b 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 22a28b9a57f..2ba6cb1ef9a 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 2d9b3f44492..59781f56744 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 0065389803b..e81e17ef096 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 ac93272567d..c844f862893 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 6d3b75104f3..90dd43d244d 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 5457aa458b8..9371517584d 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 60aef5fb24d..61de14ebe3c 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 9c65531c406..916040960ee 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 14f6022230b..dc5d7c83245 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 ba3ada80917..82df9fb0ee1 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 cf13ea3a1e3..b03a1e31ab7 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 5b0fc97d4fc..98bfd76b645 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 a6ef72d02e1..c8630bedb9f 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 bd7c4654c9b..6ed9123b5d4 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 7dc00056e13..0b7fafcda48 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 a31971a300e..aa8fc618213 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 877256a614d..2220018cb21 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 dfcee695df6..5c48615b0e7 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 31b13306d37..2f7bbe63632 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 490f02cadb4..530d29f1683 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 98ab317dbb2..65faa6432ac 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 61fa0165d6b..b5474bd1075 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 066f23f314c..6593f316857 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 e411d4fda3c..8c889eab8c0 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 fb82f1df253..c4483746e3b 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 b89a2f299c8..fe0debe8813 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 5776c89acc8..deab0418b8b 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 068bb011c3d..72d24789150 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 5cc67b30848..4a78a769eb9 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 45db5a644bd..04bfd38d04c 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 0f69a9f1593..df1b058d792 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 dd6401419ad..c5a0b68c1ab 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 7c2e2d33d93..11b42a9d1a8 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 1c8644fbc03..1c26b7dd03f 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 69a99388a7c..48c910fefb4 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 97aa19cbbf4..28c4d746f65 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 1daadb98750..c03af353beb 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 08c17134fd9..62d89337700 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 78269f016ff..461e67ae21f 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 7112de63eff..7d222d7381e 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 e5570e43ed9..12eb85bdffc 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 41795993045..560727a2c4b 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 604c25275bd..054d1b3a8dc 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 e2fa586105e..5d88e56551a 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 68dc3432a11..45de16e198c 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 e0eedaeb3c7..6f36ec38b19 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 7026f1a22da..5e86c1f63e5 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 550cadaca1f..68cb0aeddd5 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 5effaa7ba8a..bd21943894e 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 a0a654e94e6..30d2db32302 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 b38d61bb174..dc6f13687f9 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 88532003119..590776cba4e 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 f99b1dc069d..eb00b1d3440 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 e568c8267e4..bf580c8a5f7 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 caf3b76f7f6..93f1aab04d9 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 bf3314fffd1..508f06207bd 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 61d753823fd..9e39e3bd87e 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 bf27a590b51..8e0959dab21 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 e6390de835f..86e41b54725 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 5e2e2b68df1..2d8b321dba6 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 1c4b9da5a40..2efa36fe36e 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 76e5b622652..cc3d6d41ad8 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 515e1905a5b..64e749273bc 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 c1c6cdac2c9..e27b82d873d 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 5e30ba4bc7d..3c46dc6e318 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 c108e498308..2c30e586815 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 6ee0b719717..1dab8a06170 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 83eee7ee91c..d11837ec0c1 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 469048210fd..8a21ea60b61 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 730e7c285f4..4144f69d649 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 5593f7c2f2b..420ce906e8c 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 4a4dd9a7f4c..1cd36f161f1 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 f6c24a627cd..cea84290d64 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 0098fbee2a6..7e7e90d5ce7 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 d05210c7369..1063f00edad 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 a32133839a2..2ab3a8b4c2c 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 8bea615586b..f71ad1adc20 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 ceba25ff8fc..5f05e8d5a65 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 97bb3e27cea..6db969a16aa 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 0675c76b412..391a6906c32 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 0db613e950a..4a3c8100dd5 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 1db7f550e9e..25dd8b0d688 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 84cf394f26b..2ebf08fb464 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 b7b58cd46f4..1228d3b5641 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 666a4b7082d..ec2339cbb88 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 3325ee4b2b3..7839d4259c3 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 97d2658d375..4dd3d0c060e 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 3fefc47a493..0fda24c9a12 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 66948bfba91..8426983b8b6 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 91dd7fc365d..f46300e9b67 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 f400e389d1d..80545ce18fc 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 d98d22bc113..68175c56995 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 4597e990909..0588ea24435 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 f134bbba81e..c4d835e5ab7 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 511eddc069f..feb02d9da1f 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 c9c49c34ff5..a7be331b5e3 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 9636a9c8b8d..66fc068fa88 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 01a8f092f91..980b5ce0b54 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 c0bfb2c64ee..60441b38f22 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 b0049976010..977bd4aa9c1 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 f15ed838564..8f473f0c60a 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 2651e04a7c0..35eed73a79c 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 e096120e2d6..4972b5dc2e2 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 88547f28019..f47c875eb50 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 fa1ecee8575..9b375b20e78 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 b50e24d8741..0bd169927d6 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 52d3c3e1d4c..61cf3a24676 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 4be512ef1c7..1058704d6a1 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 1c506f76732..a1e558fb90b 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 80167619adc..114728fab0c 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 62103e9a2e1..143e191e430 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 10089c67542..000b60cc629 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 b063170fbf3..5bab3ea3128 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 c60e4eefdc7..e32aa545928 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 c7ea34ae5e1..1088baca044 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 3d79c980683..4b1577c1690 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 68cbb9ce703..b3bfe9d8db0 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 ac33c263b91..13a5d6624f5 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 6d969cc0a2c..427fb56b2aa 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 977344847a2..ebff8e526b7 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 cd8addc1afe..843eca2bf05 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 acd2506648d..b5a596bde06 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 d774afbf801..ec98b948198 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 5cc4fc85045..449b8114539 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 1b15f804ff1..ef9c68239dd 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 5bfb46b8ba8..971858e8761 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 30878dc248a..0cae1b11869 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 561f9ed4160..f6a36f6b748 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 bdcb4916884..809cc05bb22 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 9088cf2f5c9..6338ca63093 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 15c6b9e2535..6cf28e4faa3 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 bb8adf8401b..4fef7ffba93 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 0a5b82e9171..04fb315ad9c 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 c8eb3a1010a..6c6718edab8 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 d4fe4bd7640..59f995bf9e3 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 63d5921d7a1..10fed5af9ea 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 d420db89f32..f13a97ae5c1 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 e10154d5e66..2405c70bf6f 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 c6c68d6fc39..6642df30903 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 8bd55e66a8c..2d60e934d9f 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 c840b3f8641..697ed499d7c 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 5f5c3504b75..32121b8b3b6 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 4d60eed0e6c..b8abe0e3f25 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 b1011998223..6895301f1be 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 2e4c4f8853e..8dffec52ffb 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 346556caf91..67a4533ffc4 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 a21304b4000..3da15086902 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 f758e93fb74..94c56f704d0 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 0a5ef5e9a2f..7a2699c9f0a 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 5a7ebfd2de2..a0b8dd0529a 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 3f18b46147d..a1e21d85c43 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 b42b9829273..7f28ca5e691 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 3097f8093f4..06f7cf27ac2 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 be7880c3272..91080f2a615 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 da66a8c76a8..e8b8808cfc8 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 5ea11f1ed97..a3c1a1b424a 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 4c308a8fd6a..308de206423 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 4432621b6e6..539e56ba3b0 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 50f12c60090..011b02b27b7 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 2877bf450ba..37a2839de0e 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 921c8f4e7da..f30fba95c6d 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 8bb35c430ca..ce8d3e45200 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 847b725453d..df9041d2263 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 4e427835d90..58bc21ee435 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 617ad681533..4f4d1cc0791 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 d58bc3e7ad1..279288db10a 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 f99c5fa4ab7..2ef1d5ead57 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 bd4d6b9d219..212e480ebff 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 cc6f939273c..d316179052a 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 4b9304095e7..8cdb29de02b 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 01a84d8ee34..f200473b827 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 06682fe2410..d11b7588d6d 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 98e39ab5184..161a2f82c3e 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 2058115e30e..d6431e2aed1 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 32c085b19df..127b66b0e36 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 a59a52588ce..229d2383856 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 eb79bc8e655..63b5b159c35 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 f4a8e7ad872..f568063fa16 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 3ff1d7197c5..946b184929a 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 9248bc8ed89..1cba9208bd4 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 ca5987ceeac..954437abe31 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 ef25ab5ebee..c2d42e188f2 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 2f7235004a1..1acff86f520 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 4325347776e..32dae7ecd93 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 1ffa6daf2c4..ea8fe8642c8 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 1b88da2ddaa..e6a3e5fda38 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 015f569cc87..f1c0e8179f0 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 4de7dadd6bf..892c89d7904 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 4113d2e0ff9..9d9e9f45ba9 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 af26f4d90a2..b60fac84781 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 e4499ff24f1..aa0247c2488 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 08313ae0d5c..2b9495c4572 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 a0c5446c943..23bea2c1a6b 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 314de3fd73d..85bb32abf75 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 dc8c062d293..3183f4ae556 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 b4ab9233ece..9df1f0aac0c 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 db33d59c1fb..567bc56cbb1 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 66dd7b394f7..71e990981d0 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 410a8582aae..18c90c3ac7e 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 92869167465..90a61576e56 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 7bee76efd1f..4f19ec29de6 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 2baa57e07bd..9d8e24ae591 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 369329fdb94..0b87f05bea1 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 c6beb99e979..446ee5955b3 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 04d56130784..ba4a947ceb8 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 6c6885d4912..4acb7dedcd9 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 47fc30733a6..275d983c22b 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 1908d03cf1a..c30ccf50573 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 05e8c2262c2..1f1cd949472 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 89a90a4da51..d0388655fb3 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 320f3930713..93bbf0a0b63 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 6f8bf1e5ce6..690922296cb 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 81d402757e5..e80553974dd 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 99b71da3533..f9d89fca425 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 6d2534f431d..14e460d3375 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 1df72568795..4ce62f0e956 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 2e4c71e27ce..654247d7b41 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 600c632a642..048c8d4b965 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 f4a005e2210..19a41d9999d 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 0c01c12fcfd..31c75a8282b 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 37ed4dc4ee1..a9ffa9f7c9f 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 b4528c1b163..6e97d284fd6 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 4c5629ab4f8..d855880dc57 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 5e94c8bf159..93c50466cfd 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 28282430297..2feb093335a 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 cdf4feb341c..1af1672cfff 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 a2418cb3f7e..a9817a24a7f 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 7a3a6ace3e4..1150f06cf94 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 a0bedbc8497..a33403a9f72 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 2976bf255cb..b174fdd1a26 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 a227536880d..bc9608b70cb 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 fffbaab97c0..cbc3450c565 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 3133786c83f..5f45754c438 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 953562d2afe..eab2fef966d 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 5c7c3a7fc2d..bc3a7da6d48 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 c7750e47d51..c3e4dd8a250 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 c0962f04c0a..0f97155d7d2 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 10922e50c91..8302aae1e7a 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 c14e31cd974..f7aa6e41ec1 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 c273c0bcda7..511aa11f5bc 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 caff74553df..b35d8ee9336 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 73c873136c2..8bb0409bb8f 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 b7ea75c195d..16336999f9d 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 98d3efe886c..932a24c038e 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 1896930cd24..fe10ce30ffa 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 6def9bcabaa..f4735660232 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 2724cb89e44..93af8db0576 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 46ab1deebdd..1dd4e302569 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 47fa5ff8525..803e6bda2b0 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 6e23e9535e9..241d2e50c04 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 ebc655c019c..f51814bda9a 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 b13cdf5286c..44024de512a 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 4461075bb16..a27e4529374 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 e8ea658ab5e..0c5dcc18721 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 e9d41033fd2..1dbf8ab99dd 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 6213055a892..7442955247e 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 b5b72473b0c..37a5d6efb83 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 8fb5360e21f..ae8f84c74ae 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 2e61923d996..0667a5f1c74 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 76f4c64518e..5beda9e4937 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 c9cf51140cd..f8633e3bdcf 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 da0326264e8..e90fa72b689 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 ccd086e3147..de429cb901a 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 53950282b53..18c2e35aedb 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 18db9e36759..77ddc6ba9f4 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 7f5cc5156df..86b7b832b28 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 d818f877e8c..2e0afc31355 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 170244fc5ff..e9d03b9374b 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 d33d002ddf7..7924d736eda 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 09b7ea132c0..d8fe094604e 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 ccd4ef88cf5..cdd890b87ed 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 8dad35fef6f..11041d36065 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 db14e31913f..42d03a7bec7 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 aba923fc874..713a9199bc7 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 8a1173e1597..daae8996813 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 184563851d5..4642a3f1491 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 0ce7af8ca8d..72816aafc50 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 c8384f7719a..f12cd8b95d1 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 55680bedd8d..e33b0130cf8 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 ccc2876bb64..4b1f731be9a 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 60326af8224..9e7eb968d55 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 369ad964dbd..4ffd704ab2b 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 43f06926393..56a98b2a1fd 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 7faf9c3e960..a7e60e1f23e 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 90ccf404cdc..160e1893435 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 7814d1a0e03..35d056ebfb6 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 2e7629c566d..3acd156baa5 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 2e8b9b256e8..47cd6892c5f 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 292f94538d2..aaa5b9c9190 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 1f60ff8209c..48e0f7e7b1f 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 e8c9ac70b6d..dbdb508f176 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 d0ce7ae1e3d..82173e35413 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 1a6ae58e78a..2c5d54eb34a 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 2b6c7f33130..71dbdec2889 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 a63132867a4..93f791c8a17 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 98117309f43..4bfb421d8d4 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 2fdd643aee4..ff0d8ffabf3 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 ceb5be83a03..3f783eee70d 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 438dc0e054d..b34f146a779 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 dd9bf92e43d..c357a9b75a3 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 a3476f8302c..c301590365f 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 1a89d320cf2..a3009f2b605 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 e8b25a7dbbb..3cf52bc05f9 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 b463c148ec6..14129b6db6e 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 52bca44dc47..677e5b6c0c0 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 e09d3f92705..1b876f1aa23 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 74d09bbf02c..c78b4d26204 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 948623919d0..5d6f49a4ff6 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 971c769a54f..718924a9e59 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 5205d9b48ff..2aabd2f809c 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 5d719fcb41a..549b5262c8b 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 042b425660f..67f96d8727a 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 f9bf55a2956..2cb1508f7c2 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 8f1e22236d8..93c9ed93f6d 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 f945e22d397..a32f0dc74c1 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 c052bebf859..278cafadf6d 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 0b7a3b84b1c..f00aafd0deb 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 40b8e42278c..792e3d578be 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 997851ea69d..74625c6f425 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 5088c5a3bcb..b8f0c1f45dc 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 4258ae96ed0..94a7ca252ae 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 04e83aa9c00..d15885d826c 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 ff216619290..a167a05d323 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 2db5c82a0a3..a461a0348c6 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 5a836226b29..12d4c5327e9 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 747694fbf4e..ddef015391b 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 56b7b74ce02..aa87a15b4e6 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 b592cb351fd..e02295df07d 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 2636200e1f4..3f7c94a78e7 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 97fb903fac3..164958dd047 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 8d0d3c111ab..99a6dfd040b 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 37a39997251..514010b4230 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 926fbdc6d78..deb4fbde2cf 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 ced40b803cc..ce40eabf368 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 2c005348032..74d3cdce302 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 9e9d0ed81a9..30d28a6f499 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 77113df6e5c..e6ca37a72a7 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 62a59ffd126..1d5a066fb58 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 9b33e550bfe..1ad280e20bc 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 5d98b53be6e..4351697612e 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 3ef52f9d629..39397eaec2c 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 fd436a4c2fe..c4dae21e127 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 8622d05f08f..1bbaa6f2d2e 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 c2b45f0edd6..95639aaa3dc 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 b6219cb3ce1..289aec2c311 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 5a4c0b0d291..715ffb4d145 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 18506ea37ad..f0668ccd071 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 10115299393..73baa77981a 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 69dce9dcf9b..0dc0aa8030f 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 3791d734e65..d1bf5c4652a 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 73575a41deb..2fa61ff6f61 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 492466700eb..0413e5be143 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 4e60a2730bc..43545d40688 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 0efd82fb393..ade5fab42c0 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 a0d98a9f168..008372e2d84 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 d5b8df4162f..9cefe2a592b 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 9baec679cd7..fef73b118c6 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 dddc93e65a5..e8602e566e1 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 1126e053bb2..f816a47ff27 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 d6660996aaa..537aba5d2d8 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 c82e1b49b12..aba3aa0f455 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 536f6d9b185..68490c37f36 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 11eca205ad5..4a566be6a4b 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 83319e93c20..a2f5b055dce 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 0118a40d440..dc010e70cdc 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 52b206f1e37..3a3a45245e1 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 60a43c48ed1..bd647f1a42d 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 23fe22aa72b..fc4c2c1fcca 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 d6c5abb644f..80e213ac923 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 8aaaf382c8f..ef73209092f 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 46213b4216e..566f19ec279 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 5a539aca47d..b4214fda453 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 0cc1da6a4fc..2c5c02f8a63 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 273a782092e..8c69efe1fe9 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 a289e03137e..cf2e89bc36a 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 6c941e3faf5..1d701b89d75 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 d20fb0e6f40..75f539472db 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 07a0ffd4044..d69f267154c 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 b930be8ca0c..ee1c5e5b6c1 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 fb763404e3f..b9c932bb378 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 3900624c4e1..326a5b71cde 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 bc30a1d13cb..3abe74c1377 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 e8cf9f4d3b0..ad1e0acdce8 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 6e4071069a0..05d2e940cc9 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 155eb326653..1df7a7fe581 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 c1294691d9a..11b4ef29a8c 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 ddab0d78220..05da4a6723d 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 23b40af3706..5d3b0a79165 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 6c511daea6a..c35bc377e8c 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 6a5acf76670..0dde2a18f90 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 44e4fca28f2..380da5ba4c7 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 59b271c875e..d7f1874bc44 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 8aee8f9f57c..fd7058a61c3 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 91183ed39ae..18e3b0bfbb4 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 d7b34ca2073..6fcedcd045a 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 be1b5b3479d..6215de4d655 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 00a3fe89e5e..41026a326a3 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 190c8e00786..d092e7072d3 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 fe8769ccb9f..d8f79631381 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 9cd911b24e2..617c3fcf674 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 515c14f32d0..fe9f4387467 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 a39921fb216..b4f504eda88 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 6a0cdbf24de..55ef10b33c6 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 002e814c573..b6aca116710 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 11ce351e982..0afda22a939 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 85ff824d8cf..0f47b6d9cd2 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 3d55c830a4d..ce8d59b3031 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 3ab868bb537..55627920af7 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 b1bac6bbfaa..1f2427732ae 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 14fb20a1c2f..ded6a4ccd91 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 325e3e4648c..9c779ca3670 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 c56ed3ad8e6..a11f94feb89 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 caba41b67b1..37949dbe4a1 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 519ece063ed..47c064c0e8f 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 da9c868bac2..1fa72320bc5 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 b41f75242b7..2f8f9091c50 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 e5f5614413d..95304837bf0 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 8391f0ab634..fee475794bb 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 82de150f540..c3e7608e4ae 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 238c722a0bb..39890815998 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 086faa8f647..b6ea1aec74d 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 2ca9daa36d1..1aa267671fd 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 9e8797c4620..5d5599a0234 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 234c5ab056f..5763430b596 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 fab5dab1634..0a78cb051c4 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 eec1203f6d9..cc1df946222 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 ad4030786bd..efe1b8a4546 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 65ca801f42d..c506d4ae2b7 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 d3081372b3e..88e9f629639 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 10309eb7675..fceb0a833c9 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 5b0a00def20..8936eea5fbb 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 02dec086603..5cbda28f095 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 73e5d91df0b..9c5ba657454 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 9c8ab8ab69f..c17cfa63155 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 3989c4da1af..2936ec47cf6 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 b27c0b1a690..257e9d3e416 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 d43770a5ca6..00f380a6279 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 e58dc78fe5c..0deb1574ca0 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 f42c41622d8..6ddcab7033f 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 880f1142700..6961a6db08c 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 720337729a7..c9c535d53ce 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 03f82b26418..4f4a7ead8b6 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 c34e6342f9d..9ed4d63934a 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 2c8f73b9b63..c033eeafa81 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 87533c74b8e..394e049779f 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 3ad559a78ca..fb3003a9e63 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 d6076462dc4..205ca4ec7cd 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 2f2d2088496..5626af36a80 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 cbf9aa6a57d..2da7d1d6c70 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 bceb5cbd559..159eb5954c0 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 bc2bf13674e..63063f116e4 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 1f70eaf0dd3..930336c9dc2 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 e28c9baa785..d45733f41f1 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 d22b79b4934..761b94df312 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 16e82f942f3..8ae96f381f3 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 cc34ba5a832..83e78e4779f 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 6821cb6ab08..dfa7bd8b1ff 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 958e41af555..16cb8d3fb2e 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 17cd27436e6..ad3009fb4fb 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 e610d4df074..3838ca343ef 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 02302c3a51d..1c62cbc840f 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 50a002ff1b3..db2655e7266 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 b0a591c97e8..39b421089b8 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 fd538d43221..47dc6e9267c 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 74ef3b2915b..64bbd2c5e58 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 4d2ba5e2271..1a49bcaf998 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 5225afad6e2..7d11344d66c 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 46ce54e84cc..df74dda40e1 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 8a13b12fc29..79c3ec478a4 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 58c56d5f371..2e17110c323 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 4df8f079ad6..332c367d927 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 f8114d41783..17b47a80b8f 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 43432e5d313..0b9ecb0a20f 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 d9669dca44d..cddc3b3b970 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 0d014c7a498..2bb1d243c61 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 53914d0df73..8020a6797b1 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 d03d1dc8aa5..d6d6d4c55a7 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 fc502ce7a04..3ced17d7fa5 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 78a67b87dde..b3a00f19dc4 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 3cd1cecf7a1..f3e46aef220 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 d729489654b..e888a13e9c3 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 f7b1b864e34..a13e725082e 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 4f195892359..b0b80df70bd 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 681f7cf1e97..8a179d6c41b 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 d1d678da841..30f694ea91d 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 1e0548cdf97..cc1825bcc38 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 129df82784f..69bdd689930 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 a53df4e7615..d9d24ec8804 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 5f06e8f75fe..bcd9670700c 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 352e94a3f50..ca086d7bc73 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 31aaf9a4fe1..2dfe404c467 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 2912b757872..c276c6a798a 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 fcc60979689..408cbecf228 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 f2536356682..b7c01cfd41d 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 d255b4ba895..f716c0e9e6e 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 c46f0e14578..b5e4ff8832c 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 f6424d4e56b..5bc329d8897 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 dabea480c1e..985bf6de364 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 c07435f9c63..fb9e59d4dd5 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 9607f4aa0fa..1f96112a499 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 b47df024916..cf06c00e412 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 d000dea1706..94c910cbd97 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 19112a4cdad..5ebb9da0092 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 ce71bb3a84b..6e7c5f80d41 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 1c2658f3d52..15c6660354a 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 17240e9e048..85c771c966f 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 4d50808df93..2710a794963 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 97d969b662a..6fb9d50a021 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 a7b30d252d9..ae98d8b2805 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 d6ae7e90399..33260730490 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 18a7a0bc426..2d27e725d19 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 54a8f44d68d..9e87cb9de57 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 e20692261f5..a401ede473b 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 1e55e3536b8..03d06447c0b 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 0100684bfb7..ffe418c85d6 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 607d3de5146..1ddeb6008d7 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 667d1b57ff7..d4c27287d88 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 c7eb48e6596..c7c3e376038 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 7ca7ec4c98c..0a60a6758df 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 f18204a6ee6..1fa373906db 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 f9e24076158..f371f1589b8 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 007eb01afd8..90065975a63 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 2a9da78a032..c1cdbd6493c 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 0ccf46e85b4..d57834ea5f1 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 5d82e71690b..9e91e174533 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 db07edc8f1d..f4bf75a56a0 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 5d549d6a3b4..10f6a0c58e2 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 1d926c2cd79..0536354bda4 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 020c0f15696..8f6b07b3a08 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 a257af53ebf..9fd58c60188 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 ce49ff0df92..0682095bf93 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 96c1c565897..a596a71d884 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 83b08eb4308..6cbc737a31d 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 7148dc77838..7eff8caa2e2 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 036c0ad4ce7..918224aedbc 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 c34ee0c35bc..0c08283dee0 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 b1af4bb9604..1b9de1ba809 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 2e2ca6990d3..c8bebd869b3 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 86b7d02e75b..9d2ba72079f 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 09239d212c0..4a7a3b3846b 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 8fd39575691..f913b38562f 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 cdd01d0c8f9..53f016e8c2e 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 af856f82971..e0cde988342 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 8be55b761d1..8de4d0bee9d 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 12b6adeb18d..9660a189543 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 c09cbb39cc7..6a5e5b2feae 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 20aeb20b58d..8be8d9ca2f5 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 30061fe2f90..2b515f82412 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 60fec18df0d..153e0d0902c 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 b2c852a8cd0..32f7610b9a5 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 03a12ec8af3..d823e29d135 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 e9e76e35b6e..a84f05ebcbf 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 4abd1a362aa..8e9f751d031 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 96596622c42..d9490961b74 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 3e4cf01fa70..34ad19307c1 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 e7eb1234baa..ad6c43dd719 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 0a21efe33d5..1e2454a8827 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 5d7c35a0f0a..84d09c40d51 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 8e107160e9f..53d4ebb9a83 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 339292d7ced..90e11210b69 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 bd11f5e66d1..7d1aacf8a1b 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 88d0b6d7051..9e4f3c515d9 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 6c169c89c67..0d098f20c11 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 26b86826afa..32b2ef66e72 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 c89246702c9..8dd814b1ed2 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 f2f6cc4993e..f8af06c50d1 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 f94498dfcef..c8479069d45 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 5007f73fde7..dcaecee7aca 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 254ccbb2e90..2bb7f2aa2be 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 b5eed1b5eca..d47d0f8363d 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 7e89fe14d37..5bd5ef45492 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 404fb2a5be9..7fb03ec4ae0 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 330989f88d8..82cce78ce35 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 48cda783641..7530ee7d56e 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 4c0eef99de8..a1feff8f4b3 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 f6460d85af9..f2c1a6a726c 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 f74aac61c8f..3aa1e6afa87 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 d24454a5958..95e017af670 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 9dab6d5fb54..8054892fb72 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 5e031365605..9424728637e 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 761d0f71283..7c3187d7d5d 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 62b19b8ab11..234d6053b02 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 8b993ea0671..c15a302d498 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 e0a5d39af6d..00b426f15c0 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 a9f73654fad..a938ec2704a 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 bf9da25ff86..cae401f3573 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 18107b6d4b1..4db9fb9fee4 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 ed082fb6e67..92d93fb0838 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 fecdc4b40b4..f4960d3438a 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 fe001530ce2..d702efdc5bb 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 b9a0185c383..b6eac6b5959 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 502b7d350ee..5a65d060938 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 d2f121cd0f9..218da005f3c 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 129d45de260..fe559a01b13 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 2ed82092032..f9c35245c76 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 aded4025f4f..6fc7cc02b89 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 c84c3968d53..4708e5a8533 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 495a15c903b..d21e9342ac1 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 c7b896a5040..a7549a9deac 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 bb085f15ae0..20c4add75ec 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 5f3d72a556b..0c02a8c57d1 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 35e22493a76..cf5c842cccc 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 943512c828f..66ff83b5eba 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 9a77b292602..4670d6862bf 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 2f40495da38..a88c7a2d410 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 84f04572ce8..741bd9716fe 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 aab148642a8..83655043c84 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 daf214db3dc..acb60204947 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 544c7b381cd..20f984431fe 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 3cc753b7a1f..088bc0827b6 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 f7ced719299..d3e588e839e 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 7116f99a0f8..e1c58cbd285 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 8b41d4eee90..7cb9819120d 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 f65e20ce2a6..b8ed741707d 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 b5cf7fadb7a..78931e7bd42 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 33554125b1a..4a1707b066d 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 dfddbb4fc6c..9427a58b7aa 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 2d9ed5bee32..8efc3b43b98 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 cc1926bdf9d..a29ab4d2d68 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 5e76c9dd003..d71d1e72b1a 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 46181315d5e..789d07a6002 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 a5cc062ea31..44b397434e1 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 f57c02709d4..22afb5a564d 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 693f170bc75..8b969ba248d 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 f45677e1533..910032b2942 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 fc451a7a5b8..1263ce51931 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 5105f24a49d..7edf6e1d92c 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 8bf45e33dbf..0232a43dabc 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 691eca892b1..153fdbcdd7b 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 ed34f64e8b8..ba346e3d9b7 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 a6988842350..2bbf7abef3b 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 058a322e928..7a690b91107 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 25471d2f986..092d40ce2e1 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 bb1109cc700..cf014bf4042 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 d2b80c09eef..010a0b72294 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 ca2b8f524c1..2b1fdf2ba63 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 844f58fcd8d..713e31cb310 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 8acc5bd0ac2..ba365160036 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 eee8e360808..c4c47cc09d1 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 8cba7ec571c..17793b2087a 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 36d38f88009..17ba7850c84 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 c1b0e4a079d..f73bb62fdb1 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 0c0327b455d..6d512398c4b 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 a192cd9bb1f..6413bea6a9c 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 67af2e7bcf1..83992f2c14d 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 127ae014c5f..df88714b0e3 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 0436015e51d..1869b7a63bd 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 c6bd22892df..172c811049e 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 5a30c77d5c2..0d65971183e 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 da609e6b925..d8af0ba68cf 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 fab5552dea6..c3f0541e2aa 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 a63b7b4f796..ef3cc8d1415 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 9caf27fadd4..c620cf5440c 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 f342a02d25f..30ed38e2151 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 3fc9da193f4..ea70ffea333 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 70d4121ccc7..424be492dd6 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 6e6c235f3aa..aaac3c200ee 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 9b65fcf6841..96c16b574b6 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 23ed7afda43..4f868351e8d 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 78ac741bb74..feb17f58f11 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 390ef4a4cd0..445cd98321d 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 b60dadabf5c..b7838a6b3da 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 ab706c8407c..bbce5d7b23e 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 2943369d6e9..28aa554f2f2 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 9b8cb16cf72..94c1ac3b46b 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 8ef897b6738..77ef7ada218 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 d7aa1cca10c..7cb24d07150 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 4992c900f25..0c0922737a6 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 f14254c417a..a141270ec54 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 1f826393f74..60ad7872a8d 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 788d86c1340..750b9538ea9 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 0ac5d966e8d..3f70c359c18 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 bc095cd7f54..59deaa78ac8 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 d24a40d5faa..f0bbb2c9fa6 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 ce9099fc9de..3f58c0cbbd0 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 7a182349d45..efbc83a49c9 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 43c942b7615..d9aaa36052a 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 bd0e3ec3811..186fc69a53d 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 61f9850e485..c3d15762470 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 98189b74643..7154cc88db2 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 4a0b402b98f..6ed40185645 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 29025be41bb..d3890b31c58 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 702a144e468..cd212f7f9ac 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 92387bade23..b11ab95ea8a 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 d4439fef19d..f76d759387c 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 ff1c3f373ad..e0e7964bf71 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 8cf4d756524..3f0de0602cd 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 8b7e389af07..54c86f2b51e 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 6159b05ad35..17cf975aaca 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 6f92af06147..ffebf8cbe2b 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 6acdbec5ba5..6ed91af08c8 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 c12443707ed..083531776a7 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 7414cd1aa95..d26bea6f66f 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 7b38099a1c4..9c62f9a980e 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 c5c691fe226..1ae74fe5a6d 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 a7064ff7614..343c0512730 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 04976b6e8d5..ed029f95efc 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 026fabfe0a6..a2ee7eec36c 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 213e74f7e1c..a465a7be8c7 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 c03be4e2ef6..71afecc359e 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 c804c6ee354..8688e920007 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 6d6e073ec70..467a13c93b9 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 083cff3f38e..c98ac8ee6bd 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 580fad1c1fb..29a6609d7a5 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 f3617cca47c..43775d811d8 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 69d69a3b2b5..82e03729c2a 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 8cf7626f248..1d33ecd07b4 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 7ebffe8c69c..fc4124c4d41 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 6eb2c058eb4..1b15eb7cf50 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 f63ef969b1c..61d701f6e0e 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 46852fe7262..55dbd44856f 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 79b4cfc74ed..719479e9360 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 ed5a82226b2..d8511e179c6 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 c7e03156d2d..61f862fe862 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 b99086cf87a..352418d2143 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 1465e0f1aa0..217c81b7462 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 ce2128519d4..483a19b49e3 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 72ae30eb5c3..62e2a2d5928 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 d5466a690d5..18235052f66 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 fa7452c06d5..afb128f6cfd 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 f2ff0f7885a..c5da228c6ca 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 49de0e867f3..7dd6d89d2bf 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 35c70150b00..221838e6a64 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 3a18a768e27..aeaf4d91147 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 6223f7c4bd6..eb174c845bd 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 fcbf9117408..2d09487defd 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 bfe3b3e9cbf..5976f522f99 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 168017bc652..a4f4388c1ef 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 1a718b1761a..79cd498506f 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 386ff7d283d..7ae4885de10 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 66b81a9465d..f36947ee1e6 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 7a6a07079a1..3ff9b0f631a 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 c6ce23b3685..1002a28c253 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 1db249cd80b..d1a79dbfa7b 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 e6ff009d56e..2f086a55ccc 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 1e1f9a0e2de..9ed221b7cd3 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 f2c3fb66824..d92825d0751 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 6c4b1a2de04..2571fe5bf6c 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 f6450726897..85a7c6b1745 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 156fdfa2bbd..5f8fd8a3df9 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 eaa2f64c117..ed66535c0ad 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 61a939e2336..2fee31e40c2 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 345630b011b..fd311c65cf5 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 3b8a29bfbca..e55e2e01ad5 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 9d61ee04b5b..15728453c6d 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 a8bacab9528..7cbc8f698a6 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 f00cc675d6d..dd1ea0f4cf4 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 e0c80a54ab6..10ee31252c0 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 dca6c8a0860..6e96be4786e 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 d2f9047a266..7043335dc39 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 bcebce8131b..b87c6a62486 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 cc73314ba25..bdfa0d6cd64 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 18a61c48744..3e2866dc8f4 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 c34b668221a..be3c103669c 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 9b9d1f9000e..68cba9dff9e 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 6a0a9af8505..9f04253feb9 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 ee1cc8a893d..445e6a58d74 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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