Home Forums OS X Server and Client Discussion DNS DNS problem – possible unwanted use of ipv6 by dns – how to stop?

This topic contains 4 replies, has 2 voices, and was last updated by  kd4ttc 9 years, 2 months ago.

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  • #379110

    kd4ttc
    Participant

    I’ve got a problem with DNS. I have safari hanging a lot from what seems to be a delay because my dns is trying to use ipv6 protocol to get DNS resolution. In the server dns log shows entries such as

    16-Jul-2010 18:08:54.645 host unreachable resolving ‘ns3.google.com/AAAA/IN’: 2001:500:3::42#53
    16-Jul-2010 18:08:54.664 host unreachable resolving ‘ns4.google.com/AAAA/IN’: 2001:500:2f::f#53
    16-Jul-2010 18:08:54.824 host unreachable resolving ‘ns1.timeinc.net/AAAA/IN’: 2001:500:2f::f#53
    16-Jul-2010 18:08:54.904 host unreachable resolving ‘ns3.timeinc.net/AAAA/IN’: 2001:500:3::42#53
    16-Jul-2010 18:08:54.904 host unreachable resolving ‘ns3.timeinc.net/AAAA/IN’: 2001:500:1::803f:235#53
    16-Jul-2010 18:08:54.941 host unreachable resolving ‘ns2.timeinc.net/AAAA/IN’: 2001:500:3::42#53
    16-Jul-2010 18:08:54.958 host unreachable resolving ‘www.cnnexpansion.com/AAAA/IN’: 2001:503:a83e::2:30#53

    Which I think are requests going out as ipv6. My router doesn’t support that, so I end up waiting until an ipv4 request goes out.

    Any advice on where to look to turn off the ipv6 protocol? I have already turned it off in system preferences. And how did ipv6 get turned on?

    Thanks,
    Steve

    #379121

    kd4ttc
    Participant

    Oh, yes. That was already done. System Pref > Network > Advanced options > Configure IPv6 is set to off. Thanks for taking the time to consider that. Is there some other place that turns on IPv6?

    #379143

    kd4ttc
    Participant

    No. Back to my Mac is not installed.

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