nanog mailing list archives

RE: OWA blocked by China


From: "Thomas York" <straterra () fuhell com>
Date: Tue, 27 Mar 2012 10:50:53 -0400

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


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