Mailing List Archive: nsp: ipv6

Contact at "ec.europa.eu" / IPv6 broken

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p.mayers at imperial

Jun 18, 2012, 8:06 AM

Post #1 of 7 (1162 views)
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Contact at "ec.europa.eu" / IPv6 broken

Can others confirm that this site:

http://ec.europa.eu/

...is broken over IPv6, but working over IPv4? Seems like the webserver
is returning a 503 over IPv6 only.

We reported this last week, but have received no reply; does anyone have
contacts into the hosting organisation that can bump the issue? We tried
contacting the site via voice, and were politely rebuffed.

nick at foobar

Jun 18, 2012, 8:24 AM

Post #2 of 7 (1121 views)
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Re: Contact at "ec.europa.eu" / IPv6 broken [In reply to]

On 18/06/2012 16:06, Phil Mayers wrote:
> Can others confirm that this site:
>
> http://ec.europa.eu/
>
> ...is broken over IPv6, but working over IPv4? Seems like the webserver is
> returning a 503 over IPv6 only.
>
> We reported this last week, but have received no reply; does anyone have
> contacts into the hosting organisation that can bump the issue? We tried
> contacting the site via voice, and were politely rebuffed.

It looks like they've got this site sitting behind a load-balancer. Some
of the real hosts sitting behind it seem to work fine; others don't. I'm
getting lots of 503s, but it works for > 50% of requests.

Nick

mdavids at forfun

Jun 18, 2012, 10:32 AM

Post #3 of 7 (1120 views)
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Re: Contact at "ec.europa.eu" / IPv6 broken [In reply to]

Op 18-06-12 17:06, Phil Mayers schreef:
> Can others confirm that this site:
>
> http://ec.europa.eu/
>
> ...is broken over IPv6, but working over IPv4?

Confirmed:

curl -6 -v http://ec.europa.eu/
* About to connect() to ec.europa.eu port 80 (#0)
* Trying 2a01:e0b:1:143:62eb:69ff:fe8f:16e6... connected
* Connected to ec.europa.eu (2a01:e0b:1:143:62eb:69ff:fe8f:16e6) port 80
(#0)
> GET / HTTP/1.1
> User-Agent: curl/7.21.4 (universal-apple-darwin11.0) libcurl/7.21.4
OpenSSL/0.9.8r zlib/1.2.5
> Host: ec.europa.eu
> Accept: */*
>
* HTTP 1.0, assume close after body
< HTTP/1.0 503 Service Unavailable
< Cache-Control: no-cache
< Connection: close
< Content-Type: text/html
<
<html><body><h1>503 Service Unavailable</h1>
No server is available to handle this request.
</body></html>
* Closing connection #0

(works when I do the same with '-4' option)

--
Marco

Attachments:

smime.p7s (4.32 KB)

sm at resistor

Jun 18, 2012, 3:35 PM

Post #4 of 7 (1143 views)
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Re: Contact at "ec.europa.eu" / IPv6 broken [In reply to]

Hi Phil,
At 08:06 18-06-2012, Phil Mayers wrote:
>Can others confirm that this site:
>
>http://ec.europa.eu/
>
>...is broken over IPv6, but working over IPv4? Seems like the
>webserver is returning a 503 over IPv6 only.

Yes, it mentioned a problem with the backend. The way DNS is used
for redundancy makes it more work to troubleshoot.

Regards,
-sm

pekkas at netcore

Jun 23, 2012, 3:25 AM

Post #5 of 7 (1099 views)
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Re: Contact at "ec.europa.eu" / IPv6 broken [In reply to]

Hi,

On Mon, 18 Jun 2012, SM wrote:
> At 08:06 18-06-2012, Phil Mayers wrote:
>> Can others confirm that this site:
>>
>> http://ec.europa.eu/
>>
>> ...is broken over IPv6, but working over IPv4? Seems like the webserver is
>> returning a 503 over IPv6 only.
>
> Yes, it mentioned a problem with the backend. The way DNS is used for
> redundancy makes it more work to troubleshoot.

For the record, this got worse a couple of days back and I reported it
again. After a round of discussion they changed something and since
Friday it has been much better. The root cause might still be there
though.

--
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings

a at foo

Jun 25, 2012, 4:29 AM

Post #6 of 7 (1038 views)
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Re: Contact at "ec.europa.eu" / IPv6 broken [In reply to]

On Mon, Jun 18, 2012 at 5:06 PM, Phil Mayers <p.mayers [at] imperial> wrote:
> Can others confirm that this site:
>
> http://ec.europa.eu/
>
> ...is broken over IPv6, but working over IPv4? Seems like the webserver is
> returning a 503 over IPv6 only.
>
> We reported this last week, but have received no reply; does anyone have
> contacts into the hosting organisation that can bump the issue? We tried
> contacting the site via voice, and were politely rebuffed.

I got feedback from the network dept at the EC .

They told me that they finally fixed the multiple issues.

Let me know,

Kind regards,

--
--� � � � � � � � �� Alexandre Dulaunoy (adulau) -- http://www.foo.be/
--� � � � � � � � � � � � � �� http://www.foo.be/cgi-bin/wiki.pl/Diary
--� � � �� "Knowledge can create problems, it is not through ignorance
--� � � � � � � � � � � � � � � � that we can solve them" Isaac Asimov

p.mayers at imperial

Jun 25, 2012, 5:48 AM

Post #7 of 7 (1043 views)
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Re: Contact at "ec.europa.eu" / IPv6 broken [In reply to]

On 25/06/12 12:29, Alexandre Dulaunoy wrote:
> On Mon, Jun 18, 2012 at 5:06 PM, Phil Mayers<p.mayers [at] imperial> wrote:
>> Can others confirm that this site:
>>
>> http://ec.europa.eu/
>>
>> ...is broken over IPv6, but working over IPv4? Seems like the webserver is
>> returning a 503 over IPv6 only.
>>
>> We reported this last week, but have received no reply; does anyone have
>> contacts into the hosting organisation that can bump the issue? We tried
>> contacting the site via voice, and were politely rebuffed.
>
> I got feedback from the network dept at the EC .
>
> They told me that they finally fixed the multiple issues.
>
> Let me know,

It does seem to be working again. Thanks for all the assistance guys -
now I can remove the horrible AAAA-removal RPZ hack in bind ;o)

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