[Bug 2025382] Re: 22.04 DHCPv6 IPv6 broken (at least on Oracle OCI)

[Dominic]

Oracle seem to have corrected the DHCPv6 server. When I load up an
unmodified stock instance of Ubuntu, I now get an IPv6 address
immediately like I did before they broke it.

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Title:
  22.04 DHCPv6 IPv6 broken (at least on Oracle OCI)

Status in systemd package in Ubuntu:
  Triaged
Status in systemd source package in Jammy:
  Triaged
Status in systemd source package in Lunar:
  New

Bug description:
  Ubuntu 22.04.2 LTS
  kernel 5.15.0-1038-oracle
  systemd 249.11-0ubuntu3.9

  After an update a couple weeks ago, Ubuntu 22.04 can no longer get
  IPv6 via DHCPv6 systemd-networkd, at least on Oracle OCI, but there
  are also other similar reports, e.g.

  https://ubuntuforums.org/showthread.php?t=2487465&p=14146758

  Oracle seems to be aware of the issue but they claim it's a Ubuntu
  22.04 bug:

  https://community.oracle.com/customerconnect/discussion/687610/oci-
  ipv6-address-not-assigned-to-oci-ubuntu-instance-by-dhcp

  The workaround to assign a static IPv6 is not great when managing
  multiple cloud instances.

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