When using the experimental server 'Castor', all my browsers favor ipv4 over ipv6. Is this intentional or is it still the behavior mentioned in https://airvpn.org/topic/25140-the-issue-your-browser-is-avoiding-ipv6/ ?
The connections via my ISP (dual stack) as well as via my own private OpenVPN server both happily make use of ipv6, whenever it's available. A fine example is your very own site 'airvpn.org'.
I tested this using the latest versions of 'Firefox', 'Google Chrome' and 'Chromium', all under Ubuntu 16.04.
When using 'Castor', the site 'test-ipv6.com' reports timeouts for ipv6 with and without DNS and for large packets and a 'bad' for DNS server ipv6 usage. The final rating is 0/10.
However, I don't find this assessment all that reliable, since connections to ipv6-only sites, like 'ipv6.google.com', work just fine.
I have also tested things on Windows 10 now, and unfortunately I have to report the same unsatisfying results. IPv6 is present and works, but it normally isn't used. :-(
Native connections via my ISP and connections using my personal VPN always favor IPv6 and everything is peachy. 'Castor' on the other hand always uses IPv4, unless it's an IPv6-only site.
The 'Castor' phenomenon isn't restricted to browsers either, 'mtr' on Linux also uses IPv4, unless explicitly told to use IPv6 for tracing any given route.
What am I missing here?
Edited by radolkin, 13 February 2018 - 07:48 PM.