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Re: [86attendees] IPv6 only SSID not working on iPhone

"Rajiv Asati (rajiva)" <rajiva@cisco.com> Wed, 13 March 2013 20:26 UTC

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From: "Rajiv Asati (rajiva)" <rajiva@cisco.com>
To: Dan York <york@isoc.org>
Thread-Topic: [86attendees] IPv6 only SSID not working on iPhone
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Date: Wed, 13 Mar 2013 20:26:09 +0000
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Cc: joel jaeggli <joelja@bogus.com>, "86attendees@ietf.org" <86attendees@ietf.org>
Subject: Re: [86attendees] IPv6 only SSID not working on iPhone
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Dan,

Thanks. That worked.

I suspect that the usage of SLAAC is to be blamed here. RDNS option is still missing, I suppose. :(

Cheers,
Rajiv

Sent from my Phone

On Mar 13, 2013, at 3:35 PM, "Dan York" <york@isoc.org<mailto:york@isoc.org>> wrote:

Rajiv,

On Mar 13, 2013, at 3:23 PM, joel jaeggli <joelja@bogus.com<mailto:joelja@bogus.com>> wrote:

On 3/13/13 2:23 PM, Rajiv Asati (rajiva) wrote:
Anybody know why?

My iPhone 5 (And many iPhone 4) don't get wifi associated after selecting the v6 only SSID.
they assume any network they can't dhcp on is an undesirable network.

As it happens, I just spent some time with Stuart Cheshire of Apple trying to diagnose this after Sunset4 ended.  We found that the issue seems to be that both iOS and Mac OS X are not getting a DNS resolver address on the ietf-v6ONLY network.  They *are* getting IPv6 addresses, but not getting the DNS resolver info.  On Mac OS X if you manually enter a DNS server address of "2001:df8:0:5::6" it will work.

Someone else was able to bring up Windows 8 in a vmware window on a Mac (in bridge mode) and it did get both an IPv6 address and a DNS resolver and worked fine.

I raised a ticket with mtd@ietf.org<mailto:mtd@ietf.org> who then raised a ticket with the NOC.

Dan

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Dan York
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