Bon ben je n'arrive pas à mettre en oeuvre le workaround.
J'ai pu constater que le routage ipv6 qui ne marchait pas mardi remarche ce matin sans avoir rien changé de mon coté, le routage de l'IP de test que j'ai mis sur ma VM 2001:bc8:37ca:106::1 fonctionnait à nouveau correctement (la route a fini par expirer/se mettre à jour)
Je retente le déplacement de la VM vers l'autre host autre DC, je relance dhclient6 -> nikel, le routage fonctionne vers le nouvel host.
je re-re déplace la VM vers l'host initial, je relance dhclient, il me dit obtenir une nouvelle lease :
Jun 3 15:02:09 test2 dhclient[2074]: XMT: Forming Request, 0 ms elapsed.
Jun 3 15:02:09 test2 dhclient[2074]: XMT: X-- IA_PD 00:00:e7:f8
Jun 3 15:02:09 test2 dhclient[2074]: XMT: | X-- Requested renew +3600
Jun 3 15:02:09 test2 dhclient[2074]: XMT: | X-- Requested rebind +5400
Jun 3 15:02:09 test2 dhclient[2074]: XMT: | | X-- IAPREFIX 2001:bc8:37ca:106::/64
Jun 3 15:02:09 test2 dhclient[2074]: XMT: | | | X-- Preferred lifetime +7200
Jun 3 15:02:09 test2 dhclient[2074]: XMT: | | | X-- Max lifetime +7500
Jun 3 15:02:09 test2 dhclient[2074]: XMT: V IA_PD appended.
Jun 3 15:02:09 test2 dhclient[2074]: XMT: Request on enp0s3, interval 910ms.
Jun 3 15:02:09 test2 dhclient[2076]: XMT: Request on enp0s3, interval 910ms.
Jun 3 15:02:09 test2 dhclient[2076]: RCV: Reply message on enp0s3 from 2001:bc8:6010:204::1.
Jun 3 15:02:09 test2 dhclient[2074]: RCV: Reply message on enp0s3 from 2001:bc8:6010:204::1.
Jun 3 15:02:09 test2 dhclient[2074]: RCV: X-- Preference 255.
Jun 3 15:02:09 test2 dhclient[2074]: RCV: X-- IA_PD 00:00:e7:f8
Jun 3 15:02:09 test2 dhclient[2074]: RCV: | X-- starts 1622725329
Jun 3 15:02:09 test2 dhclient[2074]: RCV: | X-- t1 - renew +10800
Jun 3 15:02:09 test2 dhclient[2074]: RCV: | X-- t2 - rebind +172800
Jun 3 15:02:09 test2 dhclient[2074]: RCV: | X-- [Options]
Jun 3 15:02:09 test2 dhclient[2074]: RCV: | | X-- IAPREFIX 2001:bc8:37ca:106::/64
Jun 3 15:02:09 test2 dhclient[2074]: RCV: | | | X-- Preferred lifetime 7200.
Jun 3 15:02:09 test2 dhclient[2074]: RCV: | | | X-- Max lifetime 86400.
Jun 3 15:02:09 test2 dhclient[2074]: RCV: X-- Server ID: 00:01:00:01:27:c2:56:0a:52:54:00:ac:49:df
Jun 3 15:02:09 test2 dhclient[2074]: PRC: Bound to lease 00:01:00:01:27:c2:56:0a:52:54:00:ac:49:df.
mais pas de routage.
Je release :
Jun 3 15:09:04 test2 dhclient[2158]: Listening on Socket/enp0s3
Jun 3 15:09:04 test2 dhclient[2158]: Sending on Socket/enp0s3
Jun 3 15:09:04 test2 dhclient[2158]: XMT: Forming Release, 0 ms elapsed.
Jun 3 15:09:04 test2 dhclient[2158]: XMT: Release on enp0s3, interval 1050ms.
Jun 3 15:09:04 test2 dhclient[2158]: XMT: Release on enp0s3, interval 1050ms.
je relance :
Jun 3 15:09:44 test2 dhclient[2171]: XMT: Forming Request, 0 ms elapsed.
Jun 3 15:09:44 test2 dhclient[2171]: XMT: X-- IA_PD 00:00:e7:f8
Jun 3 15:09:44 test2 dhclient[2171]: XMT: | X-- Requested renew +3600
Jun 3 15:09:44 test2 dhclient[2171]: XMT: | X-- Requested rebind +5400
Jun 3 15:09:44 test2 dhclient[2171]: XMT: | | X-- IAPREFIX 2001:bc8:37ca:106::/64
Jun 3 15:09:44 test2 dhclient[2171]: XMT: | | | X-- Preferred lifetime +7200
Jun 3 15:09:44 test2 dhclient[2171]: XMT: | | | X-- Max lifetime +7500
Jun 3 15:09:44 test2 dhclient[2171]: XMT: V IA_PD appended.
Jun 3 15:09:44 test2 dhclient[2171]: XMT: Request on enp0s3, interval 910ms.
Jun 3 15:09:44 test2 dhclient[2172]: XMT: Request on enp0s3, interval 910ms.
Jun 3 15:09:44 test2 dhclient[2172]: RCV: Reply message on enp0s3 from 2001:bc8:6010:204::1.
Jun 3 15:09:44 test2 dhclient[2171]: RCV: Reply message on enp0s3 from 2001:bc8:6010:204::1.
Jun 3 15:09:44 test2 dhclient[2171]: RCV: X-- Preference 255.
Jun 3 15:09:44 test2 dhclient[2171]: RCV: X-- IA_PD 00:00:e7:f8
Jun 3 15:09:44 test2 dhclient[2171]: RCV: | X-- starts 1622725784
Jun 3 15:09:44 test2 dhclient[2171]: RCV: | X-- t1 - renew +10800
Jun 3 15:09:44 test2 dhclient[2171]: RCV: | X-- t2 - rebind +172800
Jun 3 15:09:44 test2 dhclient[2171]: RCV: | X-- [Options]
Jun 3 15:09:44 test2 dhclient[2171]: RCV: | | X-- IAPREFIX 2001:bc8:37ca:106::/64
Jun 3 15:09:44 test2 dhclient[2171]: RCV: | | | X-- Preferred lifetime 7200.
Jun 3 15:09:44 test2 dhclient[2171]: RCV: | | | X-- Max lifetime 86400.
Jun 3 15:09:44 test2 dhclient[2171]: RCV: X-- Server ID: 00:01:00:01:27:c2:56:0a:52:54:00:ac:49:df
Jun 3 15:09:44 test2 dhclient[2171]: PRC: Bound to lease 00:01:00:01:27:c2:56:0a:52:54:00:ac:49:df.
Rien n'y fait, toujours pas de routage.
Je rebouge ma VM sur l'host + MAC vers lequel je suppose que ça route toujours, je ne lance pas dhclient6 et me contente de :
ip a add 2001:bc8:37ca:106::1 dev enp0s3
la connectivité ipv6 revient
je restart dhclient, je release ma lease
je re-re-re bouge la VM vers le nouvel host
je bouge la failover ipv4
je start puis stop puis start dhclient6
ça ne route toujours pas en ipv6.
P'tet que je vais simplement attendre le nouveau fix ;-)