[Bug 1750392] Re: Cannot enable IPv6 privacy extensions

[Timo Aaltonen]

fixed in disco

netplan.io (0.90) disco; urgency=medium

  * New upstream release:
    - build: fixes for building on RPM-based distros
    - build: code prettiness changes (make indentation consistent)
    - Fix device name-changes detection (LP: #1770082)
    - Add support for IPv6 Privacy Extensions (LP: #1750392)
    - Add dhcp{4,6}-overrides to control DNS, NTP, hostname updates via DHCP
      (LP: #1759014)
    - Clarify MAC and MTU setting requirements (LP: #1800668)
    - Various documentation fixes (LP: #1800669)
    - Improve error reporting to give clearer messages and context
      (LP: #1800670)
    - Skip non-physical/bond interfaces when applying renames (LP: #1802322)

 -- Mathieu Trudel-Lapierre <cyphermox at ubuntu.com>  Wed, 21 Nov 2018
14:06:13 -0500


** Changed in: netplan.io (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1750392

Title:
  Cannot enable IPv6 privacy extensions

Status in netplan:
  Fix Released
Status in netplan.io package in Ubuntu:
  Fix Released

Bug description:
  [Impact]
  Ubuntu users concerns with privacy of their IP addresses over IPv6.

  [Test case]
  1) Configure netplan with IPv6 privacy enabled:

  network:
    version: 2
    ethernets:
      eth0:
        dhcp6: true
        ipv6-privacy: true

  2) Run 'netplan apply'
  3) Run 'ip -6 addr'
  4) Verify that additional temporary addresses are added by the kernel.

  [Regression Potential]
  Minimal. This enables or disables the setting for IPv6 privacy addresses on an per-interface basis, and defaults remain unchanged.

  ---

  
  Summary:

  netplan contains no configuration entry that allows one to enable IPv6
  Privacy Extensions (RFC 4941) when autogenerated (DHCPv6 stateless,
  SLAAC) addressing is used.

  This should map to the IPv6PrivacyExtensions entry for systemd-
  networkd (man systemd.network, [Network] section), and the
  ipv6.ip6-privacy entry for NetworkManager
  (https://developer.gnome.org/NetworkManager/stable/settings-
  ipv6.html).

  Release and package data:

  > lsb_release -rd
  Description:    Ubuntu 17.10
  Release:        17.10

  > apt-cache policy nplan
  nplan:
    Installed: 0.32~17.10.1
    Candidate: 0.32~17.10.1
    Version table:
   *** 0.32~17.10.1 500
          500 http://us.archive.ubuntu.com/ubuntu artful-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       0.30 500
          500 http://us.archive.ubuntu.com/ubuntu artful/main amd64 Packages

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