Re: dns update for ipv6 using dhcpv6

[Francesco Giudici <fgiudici redhat com>]

On 14/12/2016 11:33, Tim Coote wrote:
> > On 14 Dec 2016, at 08:38, Francesco Giudici <fgiudici redhat com> wrote:
> >
> > Hi Tim,
> >      one caveat: check that also ipv6.method is set to dhcp, otherwise the
> > ipv6.dhcp-hostname would not be saved in the ifcfg file.
> > Maybe you will be interested in this:
> > https://bugzilla.gnome.org/show_bug.cgi?id=775622
> >
> > The patch in review would also save ipv6.dhcp-hostname when ipv6.method
> > is auto.
> >
> > Francesco
>
> Having read the bug, I’m a bit more confused as to what the ipv6.method
> means/refers to. I’m using both slaac (for addresses) and dhcpv6 (for dns 
> update and whatever else homenet uses it for). Would setting ipv6.method
> to dhcp break slaac?

I guess it will. But ipv6.method == auto means also that you will not
get ipv6.dhcp-hostname saved: this is a bug (method == auto should save
it too).
bugzilla #775622 would address this.

There should be a trick that could be used as work around anyway... if
you save your FQDN ipv6 hostname in ipv4.dhcp-hostname too, ifcfg-rh
plugin will save and read it also if ipv6.method == auto.
Please, note that this is a side effect and not a wanted feature, but
till #775622 isn't in place should be a viable WA.

Francesco


> Tim

-- 
Francesco Giudici
Software Engineer, EMEA
RED HAT | TRIED. TESTED. TRUSTED.