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IPv6 Cogent customers

I try to write to you but I receive this error:

Delivery to the following recipient failed permanently:

     CConn at b2b2c.com

Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for
the recipient domain b2b2c.com bysmtp.cidc.net. [].

On Wed, Apr 10, 2013 at 11:14 PM, Chris Conn <cconn at b2b2c.ca> wrote:

> Hello,
> Any single-homed or more IPv6 AS174  customers willing to take a 5 minute
> test for me?  Please contact me off-list.  We are not single homed to them
> but we have a particular destination that is having issues, and the funky
> part is that any outbound traffic over the Cogent transit is just bezerk.
>  TCP SYN packets never reach the remote end.  Return traffic, even when
> forced over Cogent however, is fine.  I can force outbound traffic to flow
> over two other transit providers, and all is kosher so long as I never use
> AS174 to try and _get_ there.
> Cogent is blaming Level3 just because they appear in the traceroute,
> therefore I would like if possible a third party to help me since Cogent
> doesn't seem inclined to do anything other than ping.
> Thanks in advance and sorry for the noise,
> Chris

Alessandro Ratti

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