Connection Problem (www.videolan.org)

MuldeR · Postby **MuldeR** » 30 Oct 2005 23:17

Since a few days I'm unable to connect to http://www.videolan.org and trac.videolan.org. However forum.videolan.org works fine for me. I know those servers are not down, but I'm unable to connect...

Any ideas ???

Postby **fkuehne** » 31 Oct 2005 17:01

That's probably a problem with your AOL connection. Please refer to their customer support, although this is quite strange since since all three webpages are hosted on the same server. Could you try to ping them using "ping -c 1 [the url]" on your command-line / DOS-shell and tell us the results?

MuldeR · Postby **MuldeR** » 31 Oct 2005 18:39

Here are the results from the ping:
(I dont' have that "-c 1" command)

Code: Select all

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\>ping -c 1 www.videolan.org
Ungültige Option -c.


Syntax: ping [-t] [-a] [-n Anzahl] [-l Größe] [-f] [-i Gültigkeitsdauer]
             [-v Diensttyp] [-r Anzahl] [-s Anzahl] [[-j Hostliste] |
             [-k Hostliste]] [-w Zeitlimit] Zielname

Optionen:
    -t             Sendet fortlaufend Ping-Signale zum angegebenen Host.
                   Geben Sie STRG-UNTRBR ein, um die Statistik anzuzeigen.
                   Geben Sie STRG-C ein, um den Vorgang abzubrechen.
    -a             Löst Adressen in Hostnamen auf.
    -n n Anzahl    Anzahl zu sendender Echoanforderungen
    -l Länge       Pufferlänge senden
    -f             Setzt Flag für "Don't Fragment".
    -i TTL         Gültigkeitsdauer (Time To Live)
    -v TOS         Diensttyp (Type Of Service)
    -r Anzahl      Route für Anzahl der Abschnitte aufzeichnen
    -s Anzahl      Zeiteintrag für Anzahl Abschnitte
    -j Hostliste   "Loose Source Route" gemäß Hostliste
    -k Hostliste   "Strict Source Route" gemäß Hostliste
    -w Zeitlimit   Zeitlimit in Millisekunden für eine Rückmeldung


C:\>ping www.videolan.org

Ping ganesh.videolan.org [32.2.138.195] mit 32 Bytes Daten:

Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.

Ping-Statistik für 32.2.138.195:
    Pakete: Gesendet = 4, Empfangen = 0, Verloren = 4 (100% Verlust),

C:\>ping trac.videolan.org

Ping ganesh.videolan.org [32.2.138.195] mit 32 Bytes Daten:

Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.

Ping-Statistik für 32.2.138.195:
    Pakete: Gesendet = 4, Empfangen = 0, Verloren = 4 (100% Verlust),

C:\>ping forum.videolan.org

Ping ganesh.ipv4.via.ecp.fr [138.195.130.74] mit 32 Bytes Daten:

Antwort von 138.195.130.74: Bytes=32 Zeit=752ms TTL=46
Antwort von 138.195.130.74: Bytes=32 Zeit=763ms TTL=46
Antwort von 138.195.130.74: Bytes=32 Zeit=642ms TTL=46
Antwort von 138.195.130.74: Bytes=32 Zeit=718ms TTL=46

Ping-Statistik für 138.195.130.74:
    Pakete: Gesendet = 4, Empfangen = 4, Verloren = 0 (0% Verlust),
Ca. Zeitangaben in Millisek.:
    Minimum = 642ms, Maximum = 763ms, Mittelwert = 718ms

C:\>

How do you know, I'm on AOL ???

Postby **fkuehne** » 31 Oct 2005 19:23

Well, your IP told me that

to the admins: "Zeitüberschreitung der Anforderung." means "Connection timed out."
Additionally "Pakete: Gesendet = 4, Empfangen = 0, Verloren = 4 (100% Verlust)" is "Pakets: Sent = 4, Received = 0, Lost = 4 (100% lost)"

I've just heard this from another German user. Perhaps there is a problem in a router somewhere here.

Guest · Postby **Guest** » 31 Oct 2005 19:26

lol i have the problem when i try to open videolan.org with opera....
forum.videolan.org works fine.

if i use iexplore i can open videolan.org aswell.

MuldeR · Postby **MuldeR** » 31 Oct 2005 22:18

1) This is *not* a browser problem. Occurs in all browsers (IE, Firefox, Opera and so on...)

2) I just noticed: If I connect to my university through VPN, the problem is solved. So if it's really a router problem, maybe they use a different router there...

3) This other german user, is he using AOL too? (AOL problem ?!?!)

4) If it's a router problem, how can this be fixed for me ????

Postby **Rémi Denis-Courmont** » 01 Nov 2005 12:21

Ping ganesh.videolan.org [32.2.138.195] mit 32 Bytes Daten

Ganesh.videolan.org has IPv4 address 138.195.130.74, surely not 32.2.138.195. I've checked all of our three name servers for the videolan.org DNS zone, and they all return correct information.

I hereby infer that the problem is in your DNS resolver, or your DNS servers. Please ask your network administrator, and remove any VPN/firewall program that might be the source of the bug.

MuldeR · Postby **MuldeR** » 01 Nov 2005 19:38

If I open "http://138.195.130.74" in my web-browser, it works! However http://www.videolan.org and ganesh.videolan.org still does *not* work.

I don't have a network admin, since I'm at home. I do *not* use VPN or a Firewall. Nevertheless I'm behind a broadband-router, but that shouldn't be the problem...

tracert seems to detect the correct IP while ping uses the wrong one. Any ideas how this can happen ???

Code: Select all

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\>ping www.videolan.org

Ping ganesh.videolan.org [32.2.138.195] mit 32 Bytes Daten:

Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.

Ping-Statistik für 32.2.138.195:
    Pakete: Gesendet = 2, Empfangen = 0, Verloren = 2 (100% Verlust),


C:\>tracert www.videolan.org

Routenverfolgung zu ganesh.videolan.org [138.195.130.74]  über maximal 30 Abschn
itte:

  1    <1 ms    <1 ms    <1 ms  192.168.0.254
  2   820 ms   497 ms   327 ms  rt-frrte05.dial.aol.com [195.93.57.5]
  3     *        *      193 ms  iptfarmfe-frr-ve3.proxy.aol.com [195.93.59.62]
  4   375 ms     *        *     accessf1-frr-ae4.router.aol.com [172.17.143.75]

  5  1259 ms   977 ms  1057 ms  pop1-frr-S2-3-0.atdn.net [66.185.149.213]
  6   892 ms   861 ms  1056 ms  FranceTelecom-FRR.atdn.net [66.185.139.174]
  7     *        *        *     Zeitüberschreitung der Anforderung.
  8   705 ms   624 ms   687 ms  po3-0.pascr1.Paris.opentransit.net [193.251.128.
118]
  9     *        *        *     Zeitüberschreitung der Anforderung.
 10   274 ms   249 ms   327 ms  nri-d-pos0-0.cssi.renater.fr [193.51.185.2]
 11   341 ms   694 ms   756 ms  jussieu-pos4-0.cssi.renater.fr [193.51.180.157]

 12   385 ms   239 ms   247 ms  cachan-pos1-0.cssi.renater.fr [193.51.180.165]
 13   379 ms   389 ms   410 ms  rubis-cachan.cssi.renater.fr [193.51.181.185]
 14   287 ms   270 ms   420 ms  193.49.65.7
 15   249 ms   404 ms   399 ms  138.195.12.2
 16   857 ms   770 ms   728 ms  gw-viabb2.via.ecp.fr [138.195.134.246]
 17   951 ms   980 ms  1039 ms  ganesh.via.ecp.fr [138.195.130.74]

Ablaufverfolgung beendet.

Postby **Rémi Denis-Courmont** » 01 Nov 2005 21:22

Most likely a bug in your DNS resolver, if AOL provides its own, or in your DNS server.

Does your box provides any kind of DNS caching/forwarding/proxying?

MuldeR · Postby **MuldeR** » 01 Nov 2005 22:57

Most likely a bug in your DNS resolver, if AOL provides its own, or in your DNS server.

This means I'll have to contact AOL for support ?!?!?

Does your box provides any kind of DNS caching/forwarding/proxying?

No, it's a very simple DSL-Router. But I have already done a complete Reset. Just to be sure. Problem still there.

Postby **Rémi Denis-Courmont** » 02 Nov 2005 13:51

In that case, AOL is the only possible culprit.

MuldeR · Postby **MuldeR** » 09 Nov 2005 20:07

It's still the same problem today

Nobody out there with the same problems ???

Postby **Rémi Denis-Courmont** » 09 Nov 2005 21:23

At least no report thereof were pointed to my attention so far.

MuldeR · Postby **MuldeR** » 10 Nov 2005 19:08

That's really strange

Postby **Rémi Denis-Courmont** » 10 Nov 2005 20:09

Well, it merely seems to be an awfully flawed DNS resolver bug within AOL (either on their network or inside the installed access software).

What happens if you try to reach, e.g. http://www.kame.net ?

MuldeR · Postby **MuldeR** » 10 Nov 2005 21:26

I just tried to load http://www.kame.net/ and it took hours for connecting, so I was waiting for the time-out. But finally the page startet loading. Okay. Then I tried http://www.videolan.org/ and again it tooks hours for connecting, but suddenly the page started loading. I got no idea, what was wrong all the time. But it has been fixed

Nevertheless connection seems to be *extremely* slow. My browser shows the site but loading the images takes years...

Code: Select all

C:\>ping www.videolan.org

Ping www.videolan.org [138.195.130.74] mit 32 Bytes Daten:

Antwort von 138.195.130.74: Bytes=32 Zeit=703ms TTL=46
Antwort von 138.195.130.74: Bytes=32 Zeit=760ms TTL=46
Antwort von 138.195.130.74: Bytes=32 Zeit=973ms TTL=46
Antwort von 138.195.130.74: Bytes=32 Zeit=739ms TTL=46

Ping-Statistik für 138.195.130.74:
    Pakete: Gesendet = 4, Empfangen = 4, Verloren = 0 (0% Verlust),
Ca. Zeitangaben in Millisek.:
    Minimum = 703ms, Maximum = 973ms, Mittelwert = 793ms

That's the correct IP now, eh?

//EDIT

http://138.195.130.74/ opens developers.videolan.org

Postby **Rémi Denis-Courmont** » 11 Nov 2005 09:56

That has to be a bug with AOL as regards IPv6-enabled servers.

Try removing IPv6 support if it is installed on your computer or install it if it is not. In any case, the problem is on your/AOL's side.

MuldeR · Postby **MuldeR** » 11 Nov 2005 10:40

How do I remove IPv6 support from Windows? Is it enought to stop the "IPv6-to-IPv4" service? If so, it didn't help...

Postby **Rémi Denis-Courmont** » 11 Nov 2005 11:05

ipv6 uninstall from the command line.

MuldeR · Postby **MuldeR** » 11 Nov 2005 12:41

yeah

I uninstalled IPv6 through the commandline and rebooted my system.
Now everything seems to work fine: I can open http://www.videolan.org/ without delay and the page loads in "normal" speed.

Are there any problems from uninstalling IPv6 or can I live without that feature ???

Postby **Rémi Denis-Courmont** » 11 Nov 2005 12:48

For the time being, you can probably live without it.

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