No the IPv6 system prefers privacy addresses over standard addresses if not
explicitly told otherwise.

Server *userspace software* should tell the system explicitly what it wants
to do so that clients can connect to it.

The problem is with the userspace software, not the IPv6 configuration. It
should be selecting addresses that it requires. Much outbound server
software can benefit from privacy addresses and your solution denies them
that option because of faulty binding in the userspace software.

So I disagree. The problem is userspace software not using the 'hint' IOCTL
in IPv6 address binding to tell the operating system what type of addresses
it requires.

In other words IPv4 thinking in an IPv6 world.



On 31 March 2013 23:26, Tim Heckman <1068...@bugs.launchpad.net> wrote:

> I don't think you are correct. Here's why: the comments in the file
> mentioned in my original bug report (of which I actually included the
> full contents of the file) state the following:
>
> '2 - prefer privacy addresses and use them over the normal addresses.'
>
> Heavy emphasis on the word prefer. These addresses will be preferred for
> *ALL* IPv6 traffic. This means that for all outbound IPv6 traffic,
> unless explicitly bound, it will use the privacy extension address.
> Which is correct, this is what software *should* do. In addition to
> that, addresses brought up with privacy extension enabled are global
> addresses. So even if said software were to bring use the 'global'
> address they would get the privacy extension address as it is preferred.
> The kernel is working right, the software is working right, the bug is
> that the server image has this enabled by default.
>
> So in short, you're absolutely wrong. The server image should not have
> this enabled, and the software that is communicating over IPv6 is doing
> *exactly* what it should. It's using the preferred IPv6 address.
>
> I'm okay with this being enabled for desktops, but it has *no* place in
> server environments.
>
> -Tim
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1068756
>
> Title:
>   IPv6 Privacy Extensions enabled on Ubuntu Server by default
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/procps/+bug/1068756/+subscriptions
>


-- 
Neil Wilson

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1068756

Title:
  IPv6 Privacy Extensions enabled on Ubuntu Server by default

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/procps/+bug/1068756/+subscriptions

-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to