Lightly used IP addresses

Valdis.Kletnieks at Valdis.Kletnieks at
Sun Aug 15 19:51:46 UTC 2010

On Sun, 15 Aug 2010 11:44:18 EDT, Owen DeLong said:
> You and Randy operate from the assumption that these less certain rights
> somehow exist at all. I believe them to be fictitious in nature and
> contrary to the intent of number stewardship all the way back to
> Postel's original notebook. Postel himself is on record stating that
> disused addresses should be returned.

We've written RFCs that explain SHOULD != MUST.

Keep in mind that he said that back in a long-bygone era where sending an
e-mail asking "If you're not going to deploy that address range, can you give
it back just because it's the Right Thing To Do, even though there's a chance
that 15 years from now, you'll be able to sell it for megabucks" didn't get 53
levels of management and lawyers involved.

On Sun, 15 Aug 2010 11:33:34 EDT, Owen DeLong said:
> A contract which clarifies that you still don't have rights you never
> had does not constitute relinquishing those non-existent rights no
> matter how many times you repeat yourself.

Ahh - but here's the kicker.  For the contract to clarify the status of that
right, it *is* admitting that the right exists and has a definition (even if
not spelled out in the contract).  A non-existent thing can't be the subject
of a contract negotiation.  So in the contract, you can agree that you don't
have right XYZ, and clarify that you understand you never had right XYZ.
But it doesn't make sense if XYZ is nonexistent.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 227 bytes
Desc: not available
URL: <>

More information about the NANOG mailing list