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[Bug Watch Updater <1542523@xxxxxxxxxxxxxxxxxx>]

** Changed in: network-manager
       Status: Unknown => Confirmed

** Changed in: network-manager
   Importance: Unknown => Medium

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https://bugs.launchpad.net/bugs/1542523

Title:
  IPv6 temporary addresses accumulate over time

Status in NetworkManager:
  Confirmed
Status in network-manager package in Ubuntu:
  New

Bug description:
  On my office desktop machine I observe that it accumulates temporary
  IPv6 addresses over time, even though all except one are marked as
  deprecated already.

  E.g. right now my IP list looks like this:
  2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
      inet6 2620:101:80fc:224:ad8a:b15b:f83e:99e9/64 scope global temporary dynamic 
         valid_lft 594471sec preferred_lft 75471sec
      inet6 2620:101:80fc:224:7484:af8e:1051:52b9/64 scope global temporary deprecated dynamic 
         valid_lft 508673sec preferred_lft 0sec
      inet6 2620:101:80fc:224:3855:ba9f:c4ab:5784/64 scope global temporary deprecated dynamic 
         valid_lft 422875sec preferred_lft 0sec
      inet6 2620:101:80fc:224:ac16:b27:9fa4:4f5d/64 scope global temporary deprecated dynamic 
         valid_lft 337078sec preferred_lft 0sec
      inet6 2620:101:80fc:224:f0c6:8f9f:74b8:99ca/64 scope global temporary deprecated dynamic 
         valid_lft 251280sec preferred_lft 0sec
      inet6 2620:101:80fc:224:e070:5f9b:9783:bd0d/64 scope global temporary deprecated dynamic 
         valid_lft 165483sec preferred_lft 0sec
      inet6 2620:101:80fc:224:f46a:182b:e2c8:d026/64 scope global temporary deprecated dynamic 
         valid_lft 79685sec preferred_lft 0sec
      inet6 2620:101:80fc:224:baca:3aff:fea3:1b50/64 scope global mngtmpaddr noprefixroute dynamic 
         valid_lft 2591996sec preferred_lft 604796sec
      inet6 fe80::baca:3aff:fea3:1b50/64 scope link 
         valid_lft forever preferred_lft forever

  Once I reboot the interface has only the one IP addressed based on MAC
  address plus one temporary address.

  I verified manually via 'netstat -anp' that no active network
  connections or listening sockets remain on the interfaces which are
  marked as deprecated.

  I think the deprecated addresses should be removed once no socket is
  any longer using the address.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: network-manager 1.0.4-0ubuntu5.2
  ProcVersionSignature: Ubuntu 4.2.0-25.30-generic 4.2.6
  Uname: Linux 4.2.0-25-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Feb  5 14:33:40 2016
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  InstallationDate: Installed on 2016-01-20 (16 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  IpRoute:
   default via 10.252.24.1 dev eno1  proto static  metric 100 
   10.252.24.0/21 dev eno1  proto kernel  scope link  src 10.252.25.160  metric 100 
   10.252.75.120 via 10.252.24.1 dev eno1  proto dhcp  metric 100
  IwConfig:
   eno1      no wireless extensions.
   
   lo        no wireless extensions.
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  RfKill:
   
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-con:
   NAME                UUID                                  TYPE            TIMESTAMP   TIMESTAMP-REAL                   AUTOCONNECT  AUTOCONNECT-PRIORITY  READONLY  DBUS-PATH                                   ACTIVE  DEVICE  STATE      ACTIVE-PATH                                        
   Wired connection 1  9950bc89-c72d-4964-9a18-e3187649321e  802-3-ethernet  1454711368  Fri 05 Feb 2016 02:29:28 PM PST  yes          0                     no        /org/freedesktop/NetworkManager/Settings/0  yes     eno1    activated  /org/freedesktop/NetworkManager/ActiveConnection/1
  nmcli-dev:
   DEVICE  TYPE      STATE      DBUS-PATH                                  CONNECTION          CON-UUID                              CON-PATH                                           
   eno1    ethernet  connected  /org/freedesktop/NetworkManager/Devices/0  Wired connection 1  9950bc89-c72d-4964-9a18-e3187649321e  /org/freedesktop/NetworkManager/ActiveConnection/1 
   lo      loopback  unmanaged  /org/freedesktop/NetworkManager/Devices/1  --                  --                                    --
  nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

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