Confirmed the bug on a fresh VM install. New users using DHCP with no need to touch the interface settings will have an ever changing network UUID (on each network restart or reboot), and IPv6 hosts using stateless autoconfiguration will be stuck with a Modified EUI-64 address.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1176415 Title: Unable to enable IPv6 Privacy Extensions on eth0 Status in “network-manager” package in Ubuntu: New Bug description: This is on a fresh install of 13.04. Network Manager keeps defaulting net.ipv6.conf.all.use_tempaddr back to 0. I'm fairly confident this problem did not exist in 12.10, but feel free to squash this ticket if it is indeed a duplicate of #990011. Confirmed net.ipv6.conf.all.use_tempaddr is also set to 0 on my laptop running 13.04. Luckily I use eth1 (wifi in this case) which seems unaffected. $ ls /proc/sys/net/ipv6/conf/ all default eth0 lo $ cat /proc/sys/net/ipv6/conf/*/use_tempaddr 2 2 0 2 $ sudo sysctl net.ipv6.conf.all.use_tempaddr=0 net.ipv6.conf.all.use_tempaddr = 0 $ cat /proc/sys/net/ipv6/conf/*/use_tempaddr 0 0 0 0 $ sudo sysctl net.ipv6.conf.all.use_tempaddr=2 net.ipv6.conf.all.use_tempaddr = 2 $ cat /proc/sys/net/ipv6/conf/*/use_tempaddr 2 2 0 2 $ sudo sysctl net.ipv6.conf.eth0.use_tempaddr=2 net.ipv6.conf.eth0.use_tempaddr = 2 $ cat /proc/sys/net/ipv6/conf/eth0/use_tempaddr 0 ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: network-manager 0.9.8.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8 Uname: Linux 3.8.0-19-generic x86_64 ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Date: Sat May 4 12:25:29 2013 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2013-04-27 (7 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) IpRoute: default via 192.168.1.1 dev eth0 proto static 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.213 metric 1 IwConfig: eth0 no wireless extensions. lo no wireless extensions. MarkForUpload: True 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 READONLY DBUS-PATH Wired connection 1 ddad2c33-3c6c-44c6-aa1a-51a13560b698 802-3-ethernet 1367695468 Sat 04 May 2013 12:24:28 PM PDT yes no /org/freedesktop/NetworkManager/Settings/0 nmcli-dev: DEVICE TYPE STATE DBUS-PATH eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.8.0 connected enabled enabled enabled enabled disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1176415/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

