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Re: [DNSOP] 答复: 答复: Fwd: I-D Action: draft-song-atr-large-resp-00.txt

Mark Andrews <marka@isc.org> Fri, 22 September 2017 05:04 UTC

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Cc: Paul Vixie <paul@redbarn.org>, "\"Davey Song(宋林健)\"" <ljsong@biigroup.cn>, 'dnsop' <dnsop@ietf.org>
From: Mark Andrews <marka@isc.org>
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In-reply-to: Your message of "Fri, 22 Sep 2017 14:24:52 +1000." <20170922042453.08EA187A1E04@rock.dv.isc.org>
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Subject: Re: [DNSOP] 答复: 答复: Fwd: I-D Action: draft-song-atr-large-resp-00.txt
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In message <20170922042453.08EA187A1E04@rock.dv.isc.org>, Mark Andrews writes:

> I've tested enough version negotiation paths.  See https://ednscomp.isc.org/
> The entries with "badversion" show a failed EDNS version negotiation.
> The entire Alexa top 1M is scanned once a month.

I've added a link to the raw data for those that want to investigate further.
 
> 	EDNS(0) + rcode != BADVERS -> badversion
> 	BADVERS + response version >= request version -> badversion
> 
> > > BIND 9.11 is already adding a DNS COOKIE option to every request.
> > > That is causing some firewalls to be fixed as well as some nameservers.
> > > We haven't added additional workaround code for this.
> > 
> > nice. thanks for that.
> > 
> > -- 
> > P Vixie
> > 
> -- 
> Mark Andrews, ISC
> 1 Seymour St., Dundas Valley, NSW 2117, Australia
> PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org
> 
> _______________________________________________
> DNSOP mailing list
> DNSOP@ietf.org
> https://www.ietf.org/mailman/listinfo/dnsop
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org

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