OWA blocked by China
Hello, One of my customers has workers in China. There outlook web access is blocked by the China Firewall. I was just wondering if anyone had this issue ? I have not tried any work arounds as of yet just gathering info Thanks in advance Jim Gonzalez
On 03/27/12 09:16, Jim Gonzalez wrote:
Hello,
One of my customers has workers in China. There outlook web access is blocked by the China Firewall. I was just wondering if anyone had this issue ? I have not tried any work arounds as of yet just gathering info
Thanks in advance
Jim Gonzalez
Common practice in China. Typically the block comes and goes. Here today, gone tomorrow. However if the OWA server is on a dynamic IP or you use a dynamic IP address service for ip address resolution, then it will be blocked all the time by China. It's just the way things are done over there. Lyle Giese LCR Computer Services, Inc.
Are there any issues with general https there also? -- Leigh
-----Original Message----- From: Lyle Giese [mailto:lyle@lcrcomputer.net] Sent: 27 March 2012 15:39 To: nanog@nanog.org Subject: Re: OWA blocked by China
On 03/27/12 09:16, Jim Gonzalez wrote:
Hello,
One of my customers has workers in China. There outlook web access is blocked by the China Firewall. I was just wondering if anyone had this issue ? I have not tried any work arounds as of yet just gathering info
Thanks in advance
Jim Gonzalez
Common practice in China. Typically the block comes and goes. Here today, gone tomorrow.
However if the OWA server is on a dynamic IP or you use a dynamic IP address service for ip address resolution, then it will be blocked all the time by China.
It's just the way things are done over there.
Lyle Giese LCR Computer Services, Inc.
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On 03/27/12 09:39, Leigh Porter wrote:
Are there any issues with general https there also?
-- Leigh
-----Original Message----- From: Lyle Giese [mailto:lyle@lcrcomputer.net] Sent: 27 March 2012 15:39 To: nanog@nanog.org Subject: Re: OWA blocked by China
On 03/27/12 09:16, Jim Gonzalez wrote:
Hello,
One of my customers has workers in China. There outlook web access is blocked by the China Firewall. I was just wondering if anyone had this issue ? I have not tried any work arounds as of yet just gathering info
Thanks in advance
Jim Gonzalez
Common practice in China. Typically the block comes and goes. Here today, gone tomorrow.
However if the OWA server is on a dynamic IP or you use a dynamic IP address service for ip address resolution, then it will be blocked all the time by China.
It's just the way things are done over there.
Lyle Giese LCR Computer Services, Inc.
Not in general, it appears that most of the blocks seem to occur at the DNS level from my experience. However we have seen blocks on port 80 or 443 but infrequently.
I have had a customer with sales persons in China for about 10 years now and they are ones that are quick to complain. So we have gone through the cycles of various blocks over the years. But putting their in house server on a static IP address and getting their OWA server address resolution out of dynamic name resolution services seemed to help the most. Lyle Giese LCR Computer Services, Inc.
On Mar 27, 2012, at 10:16 AM, Jim Gonzalez wrote:
Hello,
One of my customers has workers in China. There outlook web access is blocked by the China Firewall. I was just wondering if anyone had this issue ? I have not tried any work arounds as of yet just gathering info
Jim Try a tunnel? Tom
Good luck with that. I have three plants in China and China Telecom loves batting down our VPN tunnels. They've left the current solution alone for a few months now. It appears they try to do DPI on SSL/IPSec to see if it's a VPN tunnel. I placed our SSL OpenVPN tunnel inside of a GRE tunnel. For some reason, they don't seem to be doing DPI on it and mostly leave it alone now. I'm sure it'll change at some point soon, though. -- Thomas York -----Original Message----- From: TR Shaw [mailto:tshaw@oitc.com] Sent: Tuesday, March 27, 2012 10:45 AM To: Jim Gonzalez Cc: nanog@nanog.org Subject: Re: OWA blocked by China On Mar 27, 2012, at 10:16 AM, Jim Gonzalez wrote:
Hello,
One of my customers has workers in China. There outlook web access is blocked by the China Firewall. I was just wondering if anyone had this issue ? I have not tried any work arounds as of yet just gathering info
Jim Try a tunnel? Tom
participants (5)
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Jim Gonzalez -
Leigh Porter -
Lyle Giese -
Thomas York -
TR Shaw