North American Network Operators Group

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Re: IPv6 Address Planning

  • From: Roy Badami
  • Date: Wed Aug 10 18:37:50 2005

    Iljitsch> That's exactly the reason why the IETF has such a hard
    Iljitsch> time moving forward: whatever way of abusing IP you can
    Iljitsch> think of, someone is doing it today, and breaking that
    Iljitsch> "feature" will gravely upset them.  It's the age old
    Iljitsch> battle between the irresistible force (progress) and the
    Iljitsch> immovable object (users) I guess.

And on that vein perhaps it's prudent for people using network
prefixes longer than /64 to take care to ensure that the bit positions
in the IPv6 address that should correspond to the u and g bits in the
modified EUI-64 interface ID (according to RFC 3513) are both set to
zero.

	      -roy