Website for ipv6.level3.com returns "HTTP/1.1 500 Internal Server Error"

Tue Mar 20 14:40:57 UTC 2012

FYI - it's also the main IPv4 site, not just IPv6... although I'm unsure if it's the same issue.

I was monitoring availability as a point of reference for my network and started receiving 500 errors recently as well that tripped up the monitoring system, even though the page comes up in any browser I try.

GET / HTTP/1.1
User-Agent: Mozilla/4.0 (compatible; MSIE 4.01; Windows NT)
Accept: */*
Host: www.level3.com

HTTP/1.1 500 Internal Server Error
Connection: Keep-Alive
Set-Cookie: ISAWPLB{98EBD5B9-3291-4747-849D-EABBFCE6EAA5}={895C6EC5-4BFE-48F4-A0A2-3393F2E8CF2F}; HttpOnly; Path=/
Content-Length: 3026
Date: Tue, 20 Mar 2012 14:33:53 GMT
Content-Type: text/html; charset=utf-8
Server: Microsoft-IIS/7.5
Cache-Control: private
X-AspNet-Version: 2.0.50727
X-Powered-By: ASP.NET

This is followed by a typical obfuscated ASP.NET application runtime error.

I just chose a different reference point to monitor and didn't really dig into it much more than that...

-Vinny

-----Original Message-----
From: Philip Dorr [mailto:tagno25 at gmail.com] 
Sent: Tuesday, March 20, 2012 5:41 AM
To: Frank Bulk
Cc: nanog at nanog.org
Subject: Re: Website for ipv6.level3.com returns "HTTP/1.1 500 Internal Server Error"

Chrome, Konqueror, and Firefox load the page fine.  But wget and curl
gave 500 errors.

With telnet I narrowed it down to the "Accept-Language:" having to be
two or more characters long.

wget -6 ipv6.level3.com --header='Accept-Language: fake'
--2012-03-20 04:40:20--  http://ipv6.level3.com/
Resolving ipv6.level3.com... 2001:1900:2018:3000::105
Connecting to ipv6.level3.com|2001:1900:2018:3000::105|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 51504 (50K) [text/html]
Saving to: `index.html'

100%[======================================>] 51,504      17.4K/s   in 2.9s

2012-03-20 04:40:23 (17.4 KB/s) - `index.html' saved [51504/51504]

On Tue, Mar 20, 2012 at 3:36 AM, Frank Bulk <frnkblk at iname.com> wrote:
> Email to Level3's "DL-IPV6-Support at Level3.com" has gone unanswered, so
> perhaps someone on this list can prompt the right group at Level3 to look at
> this:
>
> nagios:/tmp# wget -6 ipv6.level3.com
> --2012-03-20 03:35:16--  http://ipv6.level3.com/
> Resolving ipv6.level3.com... 2001:1900:2018:3000::105
> Connecting to ipv6.level3.com|2001:1900:2018:3000::105|:80... connected.
> HTTP request sent, awaiting response... 500 Internal Server Error
> 2012-03-20 03:35:16 ERROR 500: Internal Server Error.
>
> nagios:/tmp#
>
> It's been an issue since Saturday, 3:09 am Central.
>
> Regards,
>
> Frank Bulk
>
>