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Hello, I've been playing with the 2.6.28 and 2.6.29 kernels, and discovered the "ipip6" tunnel mode in the "ip" man page. If I guess correctly, this should be the IPv4-in-IPv6 ...
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  1. #1
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    IPv4 in IPv6 tunnel


    Hello,

    I've been playing with the 2.6.28 and 2.6.29 kernels, and discovered the "ipip6" tunnel mode in the "ip" man page. If I guess correctly, this should be the IPv4-in-IPv6 tunnel, is that correct? Can anyone confirm this?

    However I didn't manage to create any tunnel, e.g. using the command:

    # ip tunnel add mytun mode ipip6

    as root, produces "Cannot guess tunnel mode" error message.

    Is it possible at all to create this kind of tunnel? If yes, how?

    Thanks,

  2. #2
    Linux Newbie
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    Hi eriza
    I saw an article which may help you. URL Displaying existing tunnels
    There are several pages you can move between. Seems to be extensive and hopefully it helps. Cheers...
    Robert

  3. #3
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    Hi Robert,

    thanks for the article. I still have no luck, though. The article says I should've used "ip4ip6" instead of "ipip6". Which I tried; still getting the same error message.

    It also mentions that the IPv4-in-IPv6 tunnel has been supported since kernel version 2.6.22. I'm currently using 2.6.29, so it should've been supported. Just can't figure out how.

    Rgds,
    eriza

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