Re: [v6ops] Last Call: <draft-ietf-v6ops-6to4-to-historic-04.txt> (Request to move Connection of IPv6 Domains via IPv4 Clouds (6to4) to Historic status) to Informational RFC

[Lorenzo Colitti <lorenzo@xxxxxxxxxx>]

On Thu, Jun 9, 2011 at 12:01 PM, Brian E Carpenter <brian.e.carpenter@xxxxxxxxx> 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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