[arin-ppml] IPv6 Non-connected networks

William Herrin bill at herrin.us
Mon Feb 22 17:14:24 EST 2010

On Mon, Feb 22, 2010 at 4:31 PM, Kevin Kargel <kkargel at polartel.com> wrote:
> What is the difference between networks (numbers is IPv4 think)
> that may be routed next year and networks that may be routed
> next week?

Hi Kevin,

The difference is the "needs basis." If I'm turning up a multihomed
network next week, I need a block of routable IP addresses. If I might
do so next year then I don't need those addresses yet and may never
need them.

My thoughts on the value of needs-based addressing in IPv6 are on
record, but until we choose to replace it with a smarter design, we
should continue doing a responsible job of evaluating need during the
assignment process. The routing system's cost and stability depends on

Bill Herrin

William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004

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