OWA blocked by China

Thomas York straterra at fuhell.com
Tue Mar 27 09:50:53 CDT 2012

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 at oitc.com] 
Sent: Tuesday, March 27, 2012 10:45 AM
To: Jim Gonzalez
Cc: nanog at 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


Try a tunnel?


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