On killing IPv6 transition mechanisms

Matthew Ford ford at isoc.org
Tue Mar 16 15:53:13 CET 2010

It was originally on-by-default. Hasn't been configured that way out of 
the box for quite some time.


On 16/03/2010 15:38, Gert Doering wrote:
> Hi,
> On Tue, Mar 16, 2010 at 01:54:00PM +0000, Tim Chown wrote:
>> Slide 18 shows MacOSX seems to be the big 6to4 offender, or rather the
>> Airport Extreme is... and the slideset suggests ISPs deploy more 6to4 relays,
>> not less use of 6to4.    Is 6to4 enabled by default on the Airport Extreme?
> Oh, good point.  Yes, it seems to be enabled-by-default, and since the
> operating system on the client system does not *know* that it's 6to4
> (for the client, it's just "IPv6 that someone announced a RA for on the
> local LAN"), it can't properly (de-)prioritize it...
> The Airport Extreme seems to do it automatically if you give it a public IP
> - I have one, it interfered with my native IPv6, so I turned it off.  But
> it was on-by-default.
> Gert Doering
>          -- NetMaster

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