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ipv6 teredo tunnel

Posted on 2014-01-16
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Last Modified: 2014-02-01
I am still confused about the the teredo tunnel. It says that it is an automatic tunnel. But where is the tunnel built? Is it from the host to the teredo server or teredo relay? How does it do it automatically?
Also, why can it work with a NAT device?

Thanks
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Question by:leblanc
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by:John Hurst
ID: 39787216
I simply ignore it. I have NCP Secure Entry which builds an IPv4 tunnel to clients. I think Shrew Soft does the same as well.

So the IPv6 tunnel sitting in the Network is not used. It does not connect to anything.

.... Thinkpads_User
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by:leblanc
ID: 39787330
What I meant to say was I read a white paper on teredo and I'd like to understand more about the technology.
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John Hurst earned 500 total points
ID: 39787342
Here is a decent article in Wikipedia about Teredo tunneling that seem fairly decent.

http://en.wikipedia.org/wiki/Teredo_tunneling

If you are not using IPv6 (I am not) then it is not used so far as I know. I have a VPN home office router and IPv6 is disabled. There are only a half dozen devices on the network, so no need for IPv6.

Happy reading.   ... Thinkpads_User
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Expert Comment

by:John Hurst
ID: 39827168
@pitachip - Thanks and I was happy to help.

.... Thinkpads_User
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