This question keeps coming up. The restriction seems to serve no purpose whatsoever. It is a fact that there will be both false positives and false negatives. I know of no reason to even think there is a correlation between the IPv4 address you specify being the correct address, and the address responding to ICMP echo request.
Other 6in4 providers such as Netassist does not have such restriction.
Does Hurricane have UDP Teredo service? I am willing to pay for a good one!
The Teredo relays servicing the tunnelbroker.net service are not very reliable.
Even if you are willing to pay for good Teredo relays, that won't help you. Because you need IPv6 access first. Besides you get the best Teredo relay by running your own. Once you have IPv6 access all you need in order to run a Teredo relay is a public IPv4 address.
If you are willing to pay, there are plenty of options for you to get IPv6. I recommend you consider the following three options (in this order):
- Find a better ISP which will give you a public IPv4 address which you have actual control over along with native IPv6.
- Send an email to HE asking how much it costs to get your account exempt from the ICMP echo request requirement.
- Rent a dual stack VPS and set up your own personal tunnel server. You need one where you can get a routed prefix, which is /63 or shorter.
SixX did not accept my application (they said my name was fake, well, it's a bit odd but not fake!)
Welcome in the club. They reject tons of people based on nothing. In my case they started out saying something about not liking my mailserver. So I created a new email address on a different server asking them to use that instead, only to be told I am not allowed to use a secondary email address when signing up, you must use your primary address.
Microsoft Teredo gateway is slow (800ms+ ping)
To the best of my knowledge, Microsoft don't run any Teredo relays. I just pinged www
.bing.com over Teredo, the Teredo relay which Microsoft is using for that is 216.66.84.182. In other words instead of running their own, they use Hurricane Electric for Teredo service.
Microsoft do run a pool of Teredo servers, which Windows machines will use by default. But the Teredo servers are not nearly as critical to the performance as the Teredo relays. There are other Teredo servers available, but I don't think it will make much of a difference. Also the Teredo client in Windows is very picky. So there is no guarantee all the available Teredo servers can be used from Windows. If you are using an operating system like Linux, then Miredo is a nice client. It is very forgiving and can work with just about any Teredo server.