[ipv6-wg] v4 versus v6 -- who connects faster?

> Even though I am only interested in TCP connect times, there is no
> TCP-layer test available on RIPE Atlas. Therefore, I leverage TLS
> and then look at the underlying metrics reported for TCP.
> 
> Moreover, I cannot do TLS measurement to port 80 because the test
> does not like to report TCP layer metrics in situations where the
> TLS handshake fails. I did discuss this with Philip Homburg at the
> hackathon. One possibility is to either a) refactor the TCP metrics
> into a specific TCP test or b) make the TLS test report TCP metrics
> even in situations where TLS handshake fails. I personally prefer
> b).

This not correct/complete.

The Atlas traceroute measurement supports TCP. There is no reason to
assume that this will not result in valid connect times. Just use a
high enough starting ttl and only the target system will see the 
SYN packets.

Philip