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2016-07-12 20:55 GMT+02:00 suresh kumar <boilingbabu at gmail.com>:
> Hi All,
>
> I have created IPv6 vlan in neutron with DHCPv6 stateful option, when I
> create instances with this ipv6 vlan dhcp is failing to assign the IP to
> instances and it is assigning link local address
>
> I am able to ping the GW with link local address but not the other instances
> on same vlan
>
> Is there any configuration need to be done in neutron to make this work? my
> ipv6 vlan is rotatable so I didn't attached to any router interface inside
> neutron.

Cirros does not yet support DHCPv6, see
https://bugs.launchpad.net/cirros/+bug/1487041.

It also looks like other images will only do slaac by default, so you
would have to explicitly setup an DHCPv6 client in your guest, e.g.
for ubuntu-xenial do "sudo dhclient -6 ens3".