VS>> That's what I've done, but it results in a lower bandwidth over VS>> IPv6, and extra hops. The bandwidth is so much lower that VS>> browsers tend to fall back to IPv4 (Yes I know there is a tweak VS>> to stop this behaviour in Firefox, nevertheless my IPv6 VS>> connection is inferior to IPv4).
BR> I haven't had that issue. There are some websites such as Yahoo that BR> will block Firefox on IPv6 I wonder if that's what you're BR> experiencing?
I don't think so. Try https://ipv6-test.com/ and http://test-ipv6.com/ they will tell you what protocol your browser prefers and if it tends to fall back to IPv4. There you can also compare your speed over IPv4 vs IPv6.
The tweak for Firefox is or was user_pref("network.http.fast-fallback-to-IPv4", false);