Sign up ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I only have ipv6 connectivity via a HE tunnel on my router, so normally I want to prefer ipv4 over ipv6. For some websites however, I would like to prefer ipv6.

Right now I have just set DisabledComponents to 0x20 and hard coded the ipv6 resolution into my hosts file for the sites i want to access over ipv6. Since these ip addresses change at times, this is not a good solution.

Any ideas on how to handle this in a non-clunky way? Some kind of Chrome/Firefox add-on might do the trick, but I couldn't find one for this purpose.

share|improve this question
A different question on askubuntu site (…) gives a hint that it is OS that sets what's preffered in this case. – modosansreves Oct 2 '12 at 10:45

2 Answers 2

Prefering IPv4 over IPv6 is totally stupid and useless.

If you like liberty and possibility to send information accross the Internet, prefer IPv6 instead. If you want the Internet to become a stupid one way media as television is, continue with this old fashioned and totally pointless IPv4 and you may succeed.

DNS resolution in Firefox is an option and not hard coded, thanks for trying to show us how intelligent you are, but well it failed... This options aims at solving bugs in proprietary software (not Windows), not usefull with modern systems.

You may refer to NAT redirecting to understand how costfull ipv4 is and why it cause the Internet becoming less powerfull.

Please do not use IPv4 as you are not using Internet Explorer 6.

share|improve this answer
It might be useful if the IPv6 tunnel is especially bad, but that's probably not the case. He certainly didn't mention it. – Michael Hampton Jul 11 '14 at 0:06
It might be interesting if the website is broken and provides an IPv6 address but serves different content or no content at all (yes, I have had real-world examples). Just because you don't understand the point doesn't means there isn't any; there's no need to be rude. – Xr. Sep 2 '14 at 12:24
I understand the point, but it is useless. Fix the Website instead, send email to signal wath is wrong. – MUY Belgium Sep 3 '14 at 6:04

Use the IPv6 address of the website. For example, to go to , use this address http://[2001:4860:0:2001::68]/

share|improve this answer
Nobody wants to manually type in an IPv6 address every time they visit a website. Besides it wouldn't even work, because the browser would no longer send the domain name in the Host header, so you could end up on a completely different site. – kasperd Aug 12 at 7:14

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.