List of Teredo servers and teredo relays

Antonio Querubin tony at
Sun Sep 12 06:42:02 UTC 2010

On Sat, 11 Sep 2010, Jared Mauch wrote:

> I would be careful actually using teredo, as some of them (eg: 
> Microsoft) have swaths of native IPv6 networks that are unreachable.

While I would agree in principle, in practice we have little control over 
what customers use.

> I'm hoping they will correct some of the problems with it, but it makes 
> IPv6 harder to use for some people as the Microsoft one does not appear 
> to be well supported/connected.  I'm not sure if there is an effort 
> under way on Microsofts behalf to correct this, but I hope so.

This could be a host or relay-specific problem which may not be under 
Microsoft control at all.  All the more reason for ISPs to run their own 
local Teredo relay.

Antonio Querubin
808-545-5282 x3003
e-mail/xmpp:  tony at

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