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Re: [v6ops] NAT64/DNS64 support in RIPE Atlas

Gert Doering <gert@space.net> Thu, 20 July 2017 06:30 UTC

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Date: Thu, 20 Jul 2017 08:29:59 +0200
From: Gert Doering <gert@space.net>
To: Philip Homburg <pch-v6ops-7@u-1.phicoh.com>
Cc: v6ops@ietf.org, Tore Anderson <tore@fud.no>
Message-ID: <20170720062959.GM45648@Space.Net>
References: <CAFU7BASrxoroJVHwxFpwwBxCUC62_VZXsUGgfDOj6y+KVWk6tw@mail.gmail.com> <C510C095-B9AB-432F-A050-FD9CD640A6DE@consulintel.es> <CAFU7BAR413hwY_G2Cw-Ab+J158udPDLSFo==EN4LHjWb_YzD5Q@mail.gmail.com> <m1dX7DB-0000FzC@stereo.hq.phicoh.net> <CAFU7BAQ1ML2ARZKozJLFiEw43jmMObKwOpD4pGt9S3VKOwLE4w@mail.gmail.com> <m1dX7nO-0000GTC@stereo.hq.phicoh.net> <20170717152345.GV45648@Space.Net> <m1dX8Uf-0000FkC@stereo.hq.phicoh.net> <29616c41-49d5-a960-8048-9441284fd171@fud.no> <m1dXNEk-0000EGC@stereo.hq.phicoh.net>
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Subject: Re: [v6ops] NAT64/DNS64 support in RIPE Atlas
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Hi,

On Tue, Jul 18, 2017 at 09:48:06AM +0200, Philip Homburg wrote:
> So what goes wrong. Currently unsolved is that measurements are either v4
> or v6. So if you measure a v4-only target with a v4 measurement then probes
> on a NAT64 with never measure anything. You need a v6 measurement for that.

This is exactly the thing we ran into with OpenVPN being "doubly 
single-stacked" - and yes, for a measuring environment where you do
not want to rely on "use what getaddrinfo() is giving me", this is 
getting a bit tricky.

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

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