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Forum Replies

  1. Hi Andria,

    For the automatic 6to4 tunneling we can’t use dynamic routing on the Tunnel interfaces. If you have a lot of IPv6 prefixes, it’s better to create some tunnels yourself and configure EIGRP or OSPFv3 on it.

    Rene

  2. Hey Rene,

    Great write up! Why does Cisco recommend using Automatic 6 to 4 tunneling over ISATAP for inter area routing? I mean, I see the name intra-site, but trying to get more clarity on why ISATAP would not/or could not be used for inter area.

    Thank you

    Roland

  3. Hi,

    Can anyone please explain me when the remaining 16 bits of the prefix part of a 6to4 IPV6 are used ? Since it is to allocate to a point to point tunnel interface and not to the IPv6 hosts behind the routers I can’t see why more than one IP should be needed

    Thanks a lot

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