On 9/3/2015 12:14 PM, Alan Cronin (alcronin) wrote:
> We will want to use IPv6 in the product but we have a US federal
> requirement (DoD UCR available online) to provide a happy eyeballs
> solution where preference is given to IPv4 addresses rather than IPv6.
> This will be provided via configuration in the application.

Can you cite the federal requirement? Your last two emails seem to
contradict. You do or don't want traffic going out IPv6? How is this
happy eyeballs? The whole point is to make the client responsive faster.
What if for example happy eyeballs could be disabled and the list of
addresses received for the host could be sorted to put IPv4 before IPv6
and curl would try connecting to any IPv4 addresses before IPv6? I
recall that favoring one over the other was proposed at one point but I
forget what happened.
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Received on 2015-09-04