[arin-ppml] Draft Policy ARIN-2019-18: LIR/ISP Re-Assignment to Non-Connected Networks

Owen DeLong owen at delong.com
Thu Oct 10 13:29:15 EDT 2019

> On Oct 1, 2019, at 15:13 , David Farmer <farmer at umn.edu> wrote:
> Because of an off-list conversation I'd like to add I think the expectations of RFC2008 still exist in our policy manual today;
> Purpose
> ARIN allocates blocks of IP addresses to ISPs for the purpose of reassigning and reallocating that space to their customers.
> Contiguous Blocks
> IP addresses are allocated to ISPs in contiguous blocks, which should remain intact. Fragmentation of blocks is discouraged. To avoid fragmentation, ISPs are encouraged to require their customers to return address space if they change ISPs. Therefore, if a customer moves to another service provider or otherwise terminates a contract with an ISP, it is recommended that the customer return the network addresses to the ISP and renumber into the new provider’s address space. The original ISP should allow sufficient time for the renumbering process to be completed before requiring the address space to be returned.
> Now ARIN's ability to enforce this is very limited, since ISPs can make reassignments entirely by their own policy without any ARIN review against NRPM today, we even eliminated ARIN review of large reassignments. So, I'm not sure a policy change is actually required, as there is noting ARIN can do about address leases absent connectivity when they are made as reassignments.

Well, there is still section 12.

> However, I think clarifying that leases without connectivity are valid and are documented with reassignments and reallocations might return some peace and quiet to PPML

That would require consensus by the community for something like this proposal.

> Also maybe everything after the second sentence of should be deleted as impractical in a post-free-pool world. That is "To avoid fragmentation…"

An issue for a future proposal, if so.


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