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

[ColinWeaver]

I experienced this too with fresh install of 13.04.  The node is
connected to a LAN with a router sending RA's with a global prefix.
Even after updates the node did not generate a privacy address.
/etc/sysctl.d/10-ipv6-privacy.conf shows both 'all' and 'default' to
have a use_tempaddr setting of 2.  When I cat
/proc/sys/net/ipv6/conf/all/use_tempaddr and
/proc/sys/net/ipv6/default/use_tempaddr the value is 2.  However, the
value of /proc/sys/net/ipv6/conf/eth1/use_tempaddr is 0.

After a fresh install the directory /etc/NetworkManager/system-
connection is empty.  If I open the graphical network manager tool a
file called Wired Connection 1 is immediately created in that directory.
And magically the value of /proc/sys/net/ipv6/conf/eth1/use_tempaddr
turns to 2 and a temporary address is generated.

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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:
  Confirmed

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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