Mac OSX 10.7

Tim Chown tjc at ecs.soton.ac.uk
Thu Jul 21 13:01:14 CEST 2011


On 20 Jul 2011, at 17:01, Jeroen Massar wrote:

> On 2011-07-20 17:05 , Iljitsch van Beijnum wrote:
> [..]
>>> Let's say what else 10.7 has, but so far it looks good.
>> 
>> RFC 3484 policy table support? (Try ip6addrctl)
> 
> Where is that one, as I can't seem to ssh outbound anymore without it
> going for IPv4 first..... grmbl

I'm seeing preference for IPv6 for http and ssh here in Lion, when both A and AAAA records are returned quickly for the target.   Previous to Lion the IP version choice seemed dictated by the ordering of the A and AAAA responses, so if you got an A back first then IPv4 was used (and to force IPv6 you could ping6 the target).

I wonder if they've done something 'happy eyeballs'-like with the responses now, so if the A and AAAA records come back quickly enough there's a preference for IPv6, otherwise the received data is used, be that A or AAAA?   Or are you seeing fast DNS reposes for A and AAAA Jeroen?

I guess whatever their mechanism is is no longer 'secret' within the beta, so we ought to be able to get some public confirmation from Apple.

Tim


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