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Re: [DNSOP] m.root-servers.net DNSSEC TCP failures

Gilles Massen <gilles.massen@restena.lu> Wed, 17 March 2010 15:03 UTC

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Date: Wed, 17 Mar 2010 15:59:31 +0100
From: Gilles Massen <gilles.massen@restena.lu>
Organization: Fondation RESTENA
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Subject: Re: [DNSOP] m.root-servers.net DNSSEC TCP failures
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Chris Thompson wrote:
> On Mar 17 2010, sthaug@nethelp.no wrote:
> 
>> Should of course have checked hostname.bind, which reveals:
>>
>> % dig @202.12.27.33 hostname.bind ch txt +short
>> "M-CDG-3"
>> % dig @2001:dc3::35 hostname.bind ch txt +short
>> "M-CDG-4"
>>
>> So it seems my guess of Paris or thereabouts wasn't too far off. And
>> M-CDG-3 seems to have problems with TCP.

Well, I'm getting IPv6 replies from M-CDG-2 which should be in Paris as
well. I have perfect ping responses (30ms, no packet loss). And TCP
works except for the ANY query... so that doesn't quite look like a
stressed network.

> That would explain why I don't see the effect at all. I am getting
> M-NRT-JPIX-3 for IPv4 and M-CDG-4 for IPv6 (over either UDP or TCP).

I would love to know why your get M-CDG-4 and I get M-CDG-2... I'd guess
that your packets should take the janet-geant-sfinx route?


Gilles

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