[arin-ppml] Draft Policy 2011-6: Returned IPv4 Addresses

On Tue, Feb 22, 2011 at 10:33 PM, Chris Grundemann
<cgrundemann at> wrote:
>> merging legacy
>> considerations with address space that is clearly controlled by ARIN
>> is likely to result in confusion.
> Actually the opposite is true. Separating IPv4 address space along
> substantially arbitrary lines is likely to cause much more confusion
> than making clear policy that applies to all IPv4 addresses.

You're both right, but in different contexts.

Chris, a policy without a list of exceptions is clearer than a policy
with exceptions. Calling out legacy addresses specifically makes them
an exception.

But here's the context: legacy addresses are an exception. Even before
a proposal author writes the first word, legacy addresses were an
exception to ARIN's normal rules. So if he intends a policy to impact
them, it is appropriate to call that out... lest folks (reasonably)
assume that legacy addresses are an exception to his new policy as

Bill Herrin

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