extra tunnel adaptors in vista

When I do a ipconfig /all in windows vista, I see two adaptors other than the physical on that say tunnel adaptor local area 6 and 7.?  Is this normal?
walmikeAsked:
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willcompCommented:
Yes it's normal, but I don't know their use as yet.
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Brian PiercePhotographerCommented:
I have them at 6,7,10,12 and 13 Seems to be something to do with IP6.
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Windows Vista

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