mailing list archives
Re: Mac OS X 10.7, still no DHCPv6
From: Ray Soucy <rps () maine edu>
Date: Sun, 27 Feb 2011 08:56:33 -0500
SLAAC is fine (even great) for small environments. For a lot of
enterprise (or in our case, academic) networks you really want the
central control of what addresses hosts get.
Saw some mention of being unsure that it was possible to disable
SLAAC. Every OS I've tested so far respects the A flag (which
signals whether a prefix can be used for SLAAC or not) of an RA, so of
course you can disable SLAAC (right from the prefix you advertise).
Apple has said before that they don't want to use DHCPv6 because IPv6
should be "easy". I'm not really sure what about DHCPv6 is difficult.
Mac OS X 10.7 does support RDNSS (RFC 5001) so it is able to get DNS
server information in an IPv6-only environment. Of course nobody else
has implemented that yet, making Apple a "special case" host once
again (I don't even think Cisco supports the option in their T series
Once again, SLAAC and RDNSS is great for quick, small, plug-and-play
networks, and maybe even the opposite end: very very large (mobile)
But DHCPv6 is a powerful tool and one that shouldn't be thrown out.
With SLAAC, as soon as you enable it every host on a network starts
talking IPv6, by disabling SLAAC and using DHCPv6, you can selectively
respond to hosts and do a phased deployment, enabling IPv6 on a
Even though we have good native IPv6 available, we've adopted a DHCPv6
only deployment model. It works great for Windows and Linux systems,
and even Android devices (I believe the iPhone even supports DHCPv6),
really too bad that OS X doesn't support it because on our network it
means they won't be getting IPv6 anytime soon.
On Sun, Feb 27, 2011 at 8:05 AM, TR Shaw <tshaw () oitc com> wrote:
On Feb 27, 2011, at 6:27 AM, Randy Bush wrote:
You're going to have to perform stateless autconfiguration in ipv6 and
provide an ipv4 nameserver at the very minimum for a long time
apple is gonna look very very st00pid on world ipv6 day. and a bunch of
folk are considering not turning things off after that day.
Now why would you say that, Randy? My home is dual stacked with a IPv6 tunnel to HE at my router. All off the shelf.
No special config. All Apple. So whats the beef?
Epic Communications Specialist
Phone: +1 (207) 561-3526
Networkmaine, a Unit of the University of Maine System
- Re: Mac OS X 10.7, still no DHCPv6, (continued)
- Re: Mac OS X 10.7, still no DHCPv6 TR Shaw (Feb 27)
- Re: Mac OS X 10.7, still no DHCPv6 Ray Soucy (Feb 27)
- Re: Mac OS X 10.7, still no DHCPv6 Matthew Palmer (Feb 27)
- Re: Mac OS X 10.7, still no DHCPv6 Franck Martin (Feb 27)
- Re: Mac OS X 10.7, still no DHCPv6 Karl Auer (Feb 27)
- Re: Mac OS X 10.7, still no DHCPv6 Antonio Querubin (Feb 27)
- Re: Mac OS X 10.7, still no DHCPv6 Karl Auer (Feb 28)
- Re: Mac OS X 10.7, still no DHCPv6 Owen DeLong (Feb 27)
- Re: Mac OS X 10.7, still no DHCPv6 Joel Jaeggli (Feb 27)
- Re: Mac OS X 10.7, still no DHCPv6 Owen DeLong (Feb 28)
- Re: Mac OS X 10.7, still no DHCPv6 Daniel Roesen (Feb 28)
- Re: Mac OS X 10.7, still no DHCPv6 Doug Barton (Feb 27)