Re: [dhcwg] Re: WG last call on draft-ietf-dhc-dhcpv6-opt-dnsconfig-02.txt

On Thu, 20 Feb 2003, Alain Durand wrote:
> On Thursday, February 20, 2003, at 10:25  PM, Pekka Savola wrote:
> 
> > On Thu, 20 Feb 2003, Alain Durand wrote:
> >> On Thursday, February 20, 2003, at 12:03  PM, Ralph Droms wrote:
> >>> If it's unclear, then we should edit the document to explicitly
> >>> identify the addresses as IPv6 addresses.
> >>>
> >>> This option is intended to return IPv6 configuration information.
> >>> IPv4 addresses for DNS resolvers should be provided through DHCPv4...
> >
> > I symphatize with this -- there are some uses to have DHCPv6 return 
> > IPv4
> > addresses too -- but the result would just make the dnsconfig option 
> > more
> > complex for little benefit.  Let's face it: if you deploy DHCPv6, you
> > really should have long since deployed IPv6-enabled nameservers too.
> >
> > So, I think clarifying the scope to do only IPv6 seems like the best
> > option by far.
> 
> Some may scream at this idea, but couldn't we pass an IPv4-mapped address
> in there? The DHCPv6 client could recognize this special format
> to mean this is actually a v4 address?

That is certainly an idea, but I don't like passing around mapped
addresses if it can be avoided.  Anything which requires special code in
DHCPv6 seems like a bad idea.  Of course, if the mapped address is pushed
in your /etc/resolv.conf and your resolver understands that....

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings

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