04-18-2014 06:52 AM - edited 03-04-2019 10:49 PM
Dear Sirs,
my network has a router bgp (Cisco 7206VXR NPE-G2) with 3 neighbors as gateway for internet. I tried with each internet provider but I can't see one website.
With different connections I can open the website.
Dns resolution is ok , I tried to change my IP, different router, different MTU values ( ip tcp adjust-mss) but I can't fix the issue.
Please, find below trace:
1 0.000000 XXX.XXX.XXX.XX 10.168.168.80 TCP 60 http > 38120 [SYN, ACK] Seq=0 Ack=0 Win=1400 Len=0 MSS=1460
2 0.000106 10.168.168.80 XXX.XXX.XXX.XX HTTP 183 GET / HTTP/1.0
3 0.135121 XXX.XXX.XXX.XX 10.168.168.80 HTTP 448 HTTP/1.0 200 OK
Seems that it isn't a routing issue and IP TCP SYN is ok. I observed in trace captured that I receive the following http 200 ok:
HTTP/1.0 200 OK..Expires: Sat, 6 May 1995 12:00:00 GMT..P3P: CP=NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM..Cache-Control: no-store, no-cache, must-revalidate,
post-check=0, pre-check=0..Pragma: no-cache..Content-Length: 144..Connection: Close....<html><body><script>document.cookie='bbbbbbb=f9158635bbbbbbb_f9158635; path=
/';window.location.href=window.location.href;</script></body></html>
then the browser goes in request timeout
Which tests can I do?
Can you help me to fix this issue? Any suggestions?
Thank you in advance.
Kind Regards
Marco
04-18-2014 10:58 AM
Whats the website you want to access?
Do you have any firewall along the way?
04-22-2014 02:50 AM
I don't have firewall along the way.
Website is networksolutions dot com
04-24-2014 03:03 AM
Hi,
when you say your IP address is 10.168.168.80 , which is private IP address , not routable on internet . So you cant reach out to internet directly . Does you Internet router has got Nating enabled .
Share me ipconfig/all from your machine and nslookup
HTH
Sandy
04-22-2014 09:17 AM
Ok,
what about your DNS and/or proxy servers?
what is 10.168.168.80?? my local dns server and some others public DNS determine the IP for networksolutions.com as 205.178.187.13
Can you try using google's DNS (8.8.8.8)
Source:
https://www.whatsmydns.net
http://centralops.net/co/
04-22-2014 11:54 PM
I use google's dns. 10.168.168.80 is my IP used to capture the trace.
I tried also using a pc with a Public IP directly connected to the router.
04-23-2014 10:01 AM
mmmmmmmm that's weird, I can only think of talking with your ISP provider.
Maybe they are filtering something.
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