Ricardo Patara patara at
Mon Feb 2 19:56:24 CET 2009

Just wondering if some of you are using this technique to avoid  
problems from someone else accessing your website, for instance.

We have our site with ipv6 for a while now, and have received  
complaints and we had opportunity to face the same problem several  

This happens when trying to access the site via a tunnel connection.  
The browser simply gives a timeout.
We think this is related to pmtu and sites filtering icmp6.

One of the solutions was to lower down the MTU at the site server.
The question is, if this is the solution you did in case you also  
faced this problem.
I tried to contact someone from google, but with no success.

I mention google as we always try when having this  
type of problem just to make sure there is nothing "completely" wrong  
the network setup.

   Ricardo Patara

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