** Merge proposal linked:
   https://code.launchpad.net/~smoser/cloud-init/+git/cloud-init/+merge/306345

** Also affects: cloud-init
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1621615

Title:
  network not configured when ipv6 netbooted into cloud-init

Status in cloud-init:
  New
Status in MAAS:
  New
Status in cloud-init package in Ubuntu:
  Confirmed

Bug description:
  https://bugs.launchpad.net/ubuntu/+source/klibc/+bug/1621507 talks of
  how ipv6 netboot with iscsi root disk doesn't work, blocking ipv6-only
  MAAS.

  After I hand-walked busybox through getting an IPv6 address,
  everything worked just fine until cloud-init couldn't fetch the
  instance data, because it insisted on bringing up the interface in
  IPv4, and there is no IPv4 DHCP on that vlan.

  Please work with initramfs and friends on getting ipv6 netboot to
  actually configure the interface.  This may be as simple as teaching
  it about "inet6 dhcp" interfaces, and bolting the pieces together.
  Note that "use radvd" is not really an option for our use case.

  Related bugs:
   * bug 1621507: initramfs-tools configure_networking() fails to dhcp ipv6 
addresses

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