On Thu, Jun 9, 2011 at 12:01 PM, Brian E Carpenter <
brian(_dot_)e(_dot_)carpenter(_at_)gmail(_dot_)com> wrote:
In a similar way as Geoff measured 6to4 - looking at SYNs. I suspect that
the answer will be that much fewer users have configured tunnels than
6to4,
and that the failure rate is much lower.
Er, I'm currently on 2001:388:f000::xxxx
Do you have an algorithm that will tell you whether that is native
or a configured tunnel?
Not perfectly. But you can look at things like MSS and MTU.
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