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[Mathieu Trudel-Lapierre <mathieu.tl@xxxxxxxxx>]

I finally could verify/reproduce the issues you were seeing with
connections initially never start DHCPv6 even if they are showing "Auto"
for the method -- there is another part of network-manager which uses
the assumption that a missing method (e.g. for a new device connection,
which typically doesn't necessarily have an associated file on the
filesystem) means "Ignore", which is obviously false at this point.

I also noted that there is such a check in nm-applet which would write
"Ignore" and then include the assigned IPv6 addresses if the above is
fixed, so now we have two separate tasks for network-manager and
network-manager-applet. I'm working on both, and they should be fixed
shortly.

As for your crash, please try to reproduce it with apport enabled. You
should see a file in /var/crash about this crash; we'd need this opened
as a separate bug in order to be able to debug what is causing it. This
is just so we can track each issue separately and know what is fixed and
what isn't.

** Also affects: network-manager (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: network-manager (Ubuntu)
       Status: New => Triaged

** Changed in: network-manager (Ubuntu)
   Importance: Undecided => Medium

** Changed in: network-manager-applet (Ubuntu)
   Importance: Wishlist => Medium

** Changed in: network-manager (Ubuntu)
     Assignee: (unassigned) => Mathieu Trudel-Lapierre (mathieu-tl)

-- 
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/761558

Title:
  Default to enabling IPv6 addresses, but set to optional to bring up
  devices

Status in “network-manager” package in Ubuntu:
  Triaged
Status in “network-manager-applet” package in Ubuntu:
  Triaged

Bug description:
  Binary package hint: network-manager

  Ubuntu 11.04 Beta 2 does not support IPv6 networks out of the box. It
  really should. (Microsoft Windows have had this support since Vista.)

  The remaining IPv4 addresses are depleting fast - as of yesterday,
  there are no more IPv4 addresses to be had in the Asia-Pacific region,
  a situation which soon will happen in Europe and North America too -
  likely before the end of the year.

  It is therefore urgent that IPv6 networks are supported out of the box
  - average end users cannot be expected to jump through hoops in order
  to get a working network connection. Fortunately, all the necessary
  support is found in the NetworkManager source code - it is just a
  matter of changing the defaults so that both IPv4 and IPv6 networks
  are supported equally well, as well as hybrid IPv4+IPv6 dual-stack
  networks. These are the defaults that need to change in the standard
  connection profile:

  Require IPv4 addressing for this connection to complete: OFF
  IPv6 Method: Automatic
  Require IPv6 addressing for this connection to complete: OFF

  I've attached a log from when I first activated a connection to a IPv6
  wireless network (which failed), and then another attempt after having
  modified these settings (which succeeded).

  Tore

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