Re: IPv6 support

[Dan Williams <dcbw redhat com>]

On Wed, 2008-03-26 at 18:48 +0100, Sjoerd Simons wrote:
> On Wed, Mar 26, 2008 at 06:15:28PM +0100, Benoit Boissinot wrote:
> > On Wed, Mar 26, 2008 at 11:12:53AM -0400, Dan Williams wrote:
> > > On Thu, 2008-03-13 at 23:49 +0100, Benoit Boissinot wrote:
> > > > I'd like to know what work is needed to get some IPv6 support in
> > > > NetworkManager.
> > > > 
> > > > My ISP has IPv6 support, it works like this:
> > > > IP address configuration and routing is automatic (done via router
> > > > advertisement)
> > > 
> > > Right; you'll get the kernel-assigned LL address, and I believe a
> > > hashed-MAC IPv6 address based on the IPv6 routing prefix that the router
> > > advertises.  The kernel won't assign the routable IPv6 address until NM
> > > has assigned the LL IPv6 address manually (which NM does).
> > > 
> > 
> > By the way, while debugging the privacy extension for stateless
> > configuration, I was puzzled that the interface was configured twice.
> > 
> > >From what I've figured out, the kernel configure the interface by itself
> > (once the interface is up), maybe the problem was for interfaces which
> > are not devices (but from the code it seems it should work for tunnels) ?
> 
> The kernel does everything that's needed to setup your ipv6 addresses. The
> Link-local address is generated from your ethernet mac and the necessary
> duplicate detection is done. The same goes  for the global address as soon as
> you receive a router advertisement. The only thing userspace has to do is to
> setup nameserver information basically.

Great; then all we need to do is to allow the user to add additional
IPv6 addresses and handle the DNS information.

Some people have, in the past, asked about dhcp6, but I don't want to
even think about dhcp6 until the above two things have been implemented.

Dan