Differences

en:your-ipv6-is-down [2012-06-23 19:16 UTC] rm		en:your-ipv6-is-down [2012-09-21 04:27 UTC] (current) rm
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	<code>Hello!		<code>Hello!
-	I have just visited your website, and a it took about 20 seconds to load for me.	+	I have just visited your website, and it took about 20 seconds to load (or didn't load at all).
	Already knowing what might be the reason, I checked if your domain has an AAAA-record.		Already knowing what might be the reason, I checked if your domain has an AAAA-record.
-	And sure enough, it does. Pinging/tracing the actual IPv6 and also trying to fetch your	+	And sure enough, it does. Pinging/tracing the actual IPv6 and also trying to fetch your page
-	page with ''curl'', I have found one or more of the following issues with your IPv6 connectivity:	+	with ''curl'', I have found one or more of the following issues with your IPv6 connectivity:
	[ ] Your HE.net tunnel is down; perhaps your v4 endpoint changed and you forgot to update it?		[ ] Your HE.net tunnel is down; perhaps your v4 endpoint changed and you forgot to update it?
		+	[ ] Your 6to4 is down; did you allow protocol 41 only if it's coming from 192.88.99.1? DERP!
	[ ] You use an overly paranoid ip6tables ruleset, and didn't know that blocking ICMP will		[ ] You use an overly paranoid ip6tables ruleset, and didn't know that blocking ICMP will
	lead to MTU issues, causing inability to load anything longer than 1KB from your website		lead to MTU issues, causing inability to load anything longer than 1KB from your website
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	which are still in a minority right now) have to endure 10 to 20 second delays before each and every		which are still in a minority right now) have to endure 10 to 20 second delays before each and every
	page load from your site, as their browser tries IPv6 and waits for a timeout until it fails.		page load from your site, as their browser tries IPv6 and waits for a timeout until it fails.
		+	Which also means people using certain apps like the Squid proxy can't visit your website at all,
		+	because those apps do not retry via IPv4 if they fail connecting over IPv6.
	So as some of the steps to the solution, one or more of the following can be recommended:		So as some of the steps to the solution, one or more of the following can be recommended:
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	Adding broken IPv6 to a website does no good for IPv6 adoption. Please do IPv6 properly or do not		Adding broken IPv6 to a website does no good for IPv6 adoption. Please do IPv6 properly or do not
	do it at all. A half-assed approach only harms everybody.</code>		do it at all. A half-assed approach only harms everybody.</code>
		+	Feel free to copy-paste to people :P or add new items to each of the lists, but since this is not a publicly editable wiki, mail them [[rm>contact|to me]].
		+
		+	And yes, this text is in part inspired by and written in the style of the wonderful http://craphound.com/spamsolutions.txt