[Bug 1174418] Re: Privacy Extensions are set by default on Ubuntu 13.04, but no temporary address will be generate

[Stéphane Graber]

Good, so we know it's a desktop image.

Now, how's your IPv6 setup?

The various options being:
 - DHCPv6 stateless
 - DHCPv6 stateful
 - SLAAC
 - Static addresses

The privacy extensions only work when the kernel is provided a 64-bit
prefix and the main address is dynamic, so if you're doing stateful
DHCPv6 or static address assignment, you won't be getting a privacy-
extension address.

Can you also make sure to attach the following:
 - /var/log/systelog
 - output of "dmesg"
 - output of "ip -6 addr show"
 - output of "ip -6 route show"
 - output of "nm-tool"

Thanks

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https://bugs.launchpad.net/bugs/1174418

Title:
  Privacy Extensions are set by default on Ubuntu 13.04, but no
  temporary address will be generate

Status in “netbase” package in Ubuntu:
  New

Bug description:
  Description: Ubuntu 13.04
  Release: 13.04

  Privacy Extensions are set by default on Ubuntu 13.04, but no
  temporary address will be generate.

  In sysctl (by default):

  net.ipv6.conf.all.use_tempaddr = 2

  --> that means: create and prefer privacy addresses and use them over
  the normal addresses.

  If i added the same line "net.ipv6.conf.all.use_tempaddr = 2" to the
  file /etc/sysctl.conf, everythings works fine after a restart. The
  problem is, that the parameter "2" is set by default (results shown
  by: "sysctl -a"), but don't work. In Ubuntu 12.04/12.10 this problem
  don't appears.

  Thanks for reading this. I love Ubuntu :)!

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