Have problem to access one website

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aw2014
Organizer

Hi Telus,

 

I am using telus internet service and just found the  problem to access website li279-217.members.linode.com / ip:  173.255.223.217.  Please take a  look at this.

 

Tracert from my PC:

 

Trace to li279-217.members.linode.com [173.255.223.217] :

1 <1 ms <1 ms <1 ms 192.168.1.254
2 11 ms 12 ms 46 ms 10.139.10.1
3 53 ms 54 ms 53 ms 154.11.10.249
4 52 ms 52 ms 52 ms any2ix.coresite.com [206.72.210.122]
5 52 ms 52 ms 52 ms 10ge2-1.core1.lax1.he.net [72.52.92.121]
6 60 ms 65 ms 60 ms 100ge15-1.core1.sjc2.he.net [184.105.223.249]
7 147 ms 72 ms 60 ms 10ge3-2.core3.fmt2.he.net [184.105.222.13]
8 60 ms 60 ms 60 ms router3-fmt.linode.com [65.49.10.218]
9 * * *
10 * * *
11 * * *
12 * * *
13 * * *
14 * * *
15 * * *
16 * * *
17 * * *
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 ^C

 

 

Tracert from Telus router : route-views.ab.bb.telus.com

 

route-views.ab>traceroute 173.255.223.217

Type escape sequence to abort.
Tracing the route to li279-217.members.linode.com (173.255.223.217)

1 clgrab21gr01.bb.telus.com (154.11.98.17) [AS 852] 0 msec 0 msec 0 msec
2 lsancarcci01.bb.telus.com (154.11.10.114) [AS 852] 48 msec 44 msec 48 msec
3 any2ix.coresite.com (206.72.210.122) 56 msec 44 msec 44 msec
4 10ge9-5.core1.sjc2.he.net (184.105.213.6) [AS 6939] 52 msec
10ge2-1.core1.lax1.he.net (72.52.92.121) [AS 6939] 48 msec 48 msec
5 10ge3-2.core3.fmt2.he.net (184.105.222.13) [AS 6939] 56 msec
100ge15-1.core1.sjc2.he.net (184.105.223.249) [AS 6939] 56 msec 52 msec
6 10ge3-2.core3.fmt2.he.net (184.105.222.13) [AS 6939] 56 msec 56 msec 60 msec
7 li279-217.members.linode.com (173.255.223.217) [AS 6939] 52 msec 52 msec 56 msec
route-views.ab>


Accepted Solutions
Most Helpful
aw2014
Organizer

I already corrected what I said about public IP.

 

Now this issue to me is resolved. This morning, I powerd off router for half hour and got a differnet ip block: 206.75.x.x assigned. It was 173.183.x.x. 

 

The trace result. Hop 7 hitted a differenet linode router.

 

1 <1 <1 <1 192.168.1.254
2 8 ms 12 ms 11 ms 10.139.10.1
3 50 ms 49 ms 65 ms lsancarcci01.bb.telus.com [154.11.10.114]
4 52 ms 50 ms 50 ms any2ix.coresite.com [206.72.210.122]
5 61 ms 58 ms 66 ms 10ge9-5.core1.sjc2.he.net [184.105.213.6]
6 61 ms 58 ms 65 ms 10ge3-2.core3.fmt2.he.net [184.105.222.13]
7 58 ms 59 ms 58 ms router4-fmt.linode.com [64.71.132.138]
8 58 ms 58 ms 58 ms li279-217.members.linode.com [173.255.223.217]

 

 

Telnet to port 80:

 

ddfdhfd
HTTP/1.1 400 Bad Request
Server: nginx
Date: Tue, 08 Jul 2014 17:36:16 GMT
Content-Type: text/html
Content-Length: 166
Connection: close

<html>
<head><title>400 Bad Request</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx</center>
</body>
</html>

 

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All Replies
Nighthawk
Community Power User
Community Power User

First, never rely on ping and traceroute tests. Some devices are specifically set to not respond to ICMP pings and will show up as *** on traceroutes or timed out.

 

Second, if it's one specific site that isn't loading, it's usually something wrong with that site or the server it's on. The computer at that IP is up and port 80 is open but it's not transmitting data. Problem is on their end.


If you find a post useful, please give the author a "Like" or mark as an accepted solution if it solves your trouble. 🙂
NFtoBC
Community Power User
Community Power User

Connects to a .cn domain.

 

NFtoBC
If you find a post useful, please give the author a "Like"
aw2014
Organizer

one ping/traceroute is fine. another one is not fine. how does this prove ICMP is blocked?

 

if website is down, why I can browse it through http://www.vtunnel.com/?

Nighthawk
Community Power User
Community Power User

Could be down for a number of reasons. ICMP could be blocked depending on what the person that owns that server decides to do. Can also depend on the routing also. It's not a reliable troubleshooting tool other than to show that there is some form of response from the IP but no way to confirm what will connect.

 

The chinese website at that address may also be blocking connections from certain areas or providers too. That could explain why you can load it through vtunnel. It doesn't appear to be a DNS issue either since netemu.cn is resolving correctly to 173.255.223.217 even on Telus' DNS servers. Still appears to be an issue on their end.


If you find a post useful, please give the author a "Like" or mark as an accepted solution if it solves your trouble. 🙂
aw2014
Organizer

If this web site is blocking connection, telnet  session to port 80 will not established. Why did telus stop assigning every user a public ip? Instead, everyone shares same public ip 173.183.239.80? This means this issue is affecting everyone using telus network. 

aw2014
Organizer

Ok, what I said about public IP, just found it's not right. The reason I said that is somehow telus soho router no longer shows any WAN information. I don't believe a web site is blocking a specific area or SP. This doesn't make any sense. I want to prove it by getting a different IP assigned to my router. But likely it's not possible to get different one even I rebooted router several times.

NFtoBC
Community Power User
Community Power User

@aw2014 wrote:

If this web site is blocking connection, telnet  session to port 80 will not established. Why did telus stop assigning every user a public ip? Instead, everyone shares same public ip 173.183.239.80? This means this issue is affecting everyone using telus network. 


My Wan IP is not 173.183.239.80, so everyone does not share the same public IP.

 

Bing returns this:

1 RESULTSNarrow by languageNarrow by region
  1. netemu.cn Website Analysis and Social Media report impact ...

    2012-11-18 · li279-217.members.linode.com. The date netemu.cn was registered for the first time. The IP of a server identifies it. It can be unique or shared between ...

     

     

     

    Still looks to be a problem on their end.

     

    Note: Linode.com resolves as expected.

NFtoBC
If you find a post useful, please give the author a "Like"
Most Helpful
aw2014
Organizer

I already corrected what I said about public IP.

 

Now this issue to me is resolved. This morning, I powerd off router for half hour and got a differnet ip block: 206.75.x.x assigned. It was 173.183.x.x. 

 

The trace result. Hop 7 hitted a differenet linode router.

 

1 <1 <1 <1 192.168.1.254
2 8 ms 12 ms 11 ms 10.139.10.1
3 50 ms 49 ms 65 ms lsancarcci01.bb.telus.com [154.11.10.114]
4 52 ms 50 ms 50 ms any2ix.coresite.com [206.72.210.122]
5 61 ms 58 ms 66 ms 10ge9-5.core1.sjc2.he.net [184.105.213.6]
6 61 ms 58 ms 65 ms 10ge3-2.core3.fmt2.he.net [184.105.222.13]
7 58 ms 59 ms 58 ms router4-fmt.linode.com [64.71.132.138]
8 58 ms 58 ms 58 ms li279-217.members.linode.com [173.255.223.217]

 

 

Telnet to port 80:

 

ddfdhfd
HTTP/1.1 400 Bad Request
Server: nginx
Date: Tue, 08 Jul 2014 17:36:16 GMT
Content-Type: text/html
Content-Length: 166
Connection: close

<html>
<head><title>400 Bad Request</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx</center>
</body>
</html>

 

View solution in original post