Customer cannot direct access site www.w3.org

Dear Sirs,

We are a mobile telecom company in Brazil (TIM) and I am writing to  
ask a help to solve a problem or give us any feedback about the problem.

A customer from UNB (Universidade Nacional de Brasilia) complained  
that can not direct access the URL www.w3.org .

We analyzed the problem and for some unknown reason your site returned  
the reset to our IP address. Annexed the trace with the data.

Our company supplies the internet access to our customers with the  
following IP range.
189.64.0.0/15
189.116.0.0/15
187.46.0.0/15
187.82.0.0/16
189.67.128.0/17
186.196.0.0/16

The traceroute to www.w3.org ended to crusher.w3..org ..  Using  http://crusher.w3.org 
  the access to w3.org was successful.

Tracing route to www.w3.org [128.30.52.166]
over a maximum of 30 hops:
   1   236 ms   199 ms   199 ms  10.203.6.233
   2   187 ms   209 ms   949 ms  10.219.242.179
   3   178 ms   159 ms   170 ms  10.219.240.10
   4   170 ms   159 ms   159 ms  10.219.242.58
   5   188 ms   211 ms   228 ms  10.239.255.29
   6   187 ms   159 ms   159 ms  10.239.255.130
   7   157 ms   180 ms   239 ms   
ge11-1-0-3000.sanpaolo2.spa.seabone.net [195.22.
219.17]
   8   287 ms   309 ms   299 ms  te7-2.miami7.mia.seabone.net  
[195.22.199.111]
   9   338 ms   419 ms   459 ms  te4-2.ccr01.mia03.atlas.cogentco.com  
[154.54.10.
113]
  10   288 ms   279 ms   329 ms  te7-2.ccr01.mia01.atlas.cogentco.com  
[154.54.3.1
25]
  11   307 ms   339 ms   289 ms  te2-4.ccr01.atl01.atlas.cogentco.com  
[154.54.7.1
46]
  12   307 ms   329 ms   349 ms   
te0-1-0-6.ccr21.dca01.atlas.cogentco.com [154.54
..24.153]
  13   348 ms   309 ms   319 ms   
te0-0-0-6.ccr21.jfk02.atlas.cogentco.com [154.54
..25.237]
  14   307 ms   319 ms   319 ms  te3-1.ccr02.bos01.atlas.cogentco.com  
[154.54.25.
114]
  15     *        *        *     Request timed out.
  16   328 ms   339 ms   351 ms  B24-RTR-2-BACKBONE.MIT.EDU  
[18.168.0.23]
  17   340 ms   359 ms   329 ms  MITNET.TRANTOR.CSAIL.MIT.EDU  
[18.4.7.65]
  18   317 ms   369 ms   309 ms  trantor.haven.csail.mit.edu  
[128.30.0.254]
  19   326 ms   359 ms   319 ms  crusher.w3.org [128.30.52.166]


The next traceroute ended to lowblow server. If we use  http://lowblow.w3.org 
  we got the access

C:\Documents and Settings\shiruoo.TIMSUL>tracert 128.30.52.170
Tracing route to lowblow.w3.org [128.30.52.170]
over a maximum of 30 hops:
   1   217 ms   219 ms   989 ms  10.203.6.233
   2   187 ms   199 ms   169 ms  10.219.242.178
   3   169 ms   249 ms   189 ms  10.219.240.26
   4   188 ms   159 ms   159 ms  10.219.242.57
   5   157 ms   200 ms   199 ms  10.239.255.25
   6   187 ms   159 ms   199 ms  10.239.255.138
   7   188 ms   159 ms   159 ms   
ge11-1-0-3000.sanpaolo2.spa.seabone.net [195.22.
219.17]
   8   267 ms   289 ms   309 ms  te8-1.miami7.mia.seabone.net  
[195.22.199.99]
   9   277 ms   279 ms   319 ms  te4-2.ccr01.mia03.atlas.cogentco.com  
[154.54.10.
113]
  10   288 ms   269 ms   319 ms  te7-2.ccr02.mia01.atlas.cogentco.com  
[154.54.25.
13]
  11   797 ms   329 ms     *     te2-4.ccr02.atl01.atlas.cogentco.com  
[154.54.26.
9]
  12   309 ms   349 ms   369 ms   
te0-4-0-7.ccr22.dca01.atlas.cogentco.com [154.54
..42.197]
  13   317 ms   359 ms   359 ms   
te0-0-0-6.ccr22.jfk02.atlas.cogentco.com [154.54
..26.1]
  14   327 ms   339 ms   369 ms  te2-4.ccr02.bos01.atlas.cogentco.com  
[154.54.6.9
]
  15     *        *        *     Request timed out.
  16   321 ms   319 ms   359 ms  B24-RTR-2-BACKBONE.MIT.EDU  
[18.168.0.23]
  17   318 ms   329 ms   309 ms  MITNET.TRANTOR.CSAIL.MIT.EDU  
[18.4.7.65]
  18   317 ms   349 ms   319 ms  trantor.haven.csail.mit.edu  
[128.30.0.254]
  19   317 ms   330 ms   349 ms  lowblow.w3.org [128.30.52.170]

The  nslookup to address www.w3.org returned several IP address
C:\Documents and Settings\shiruoo.TIMSUL>nslookup www.w3.org
*** Can't find server name for address 189.40.224.5: Server failed
*** Can't find server name for address 189.40.224.13: Server failed
*** Default servers are not available
Server:  UnKnown
Address:  189.40.224.5
Non-authoritative answer:
Name:    www.w3.org
Addresses:  128.30.52.168, 128.30.52.170, 128.30.52.38, 128.30.52.51
           128.30.52.53, 128.30..52.54, 128.30.52.166

If you need more information or another test we are available to  
perform it.

Kind Regards,


Osvaldo Toshio Shiruo
Network Assurance - TSL
oshiruo@timsul.com.br
GSM: 55 41 9913-0328
Ramal: 55 41 3312-6541







-----Original Message-----
From: Carlinhos Cecconi [mailto:cecconi@nic.br]
Sent: quarta-feira, 3 de novembro de 2010 16:14
To: Osvaldo Toshio Shiruo
Subject: endereço para site W3C

Osvaldo

Segue o e-mail para o qual peço que reporte o problema apresentado

site-comments@w3.org

--
Carlinhos Cecconi
cecconi@nic.br
analista de projetos
W3C Escritório Brasil
NIC.br - CGI.br
+55 (11) 5509-3511