On Sun, 01 Apr 2007, JORDI PALET MARTINEZ wrote: > Policy Proposal Name: IPv6 ULA-central > Author: Jordi Palet Martinez, Consulintel > Proposal Version: 1.0 > Submission Date: 1st April 2007
The whole point of centrally-assigned unique local addresses is to get addresses that are guaranteed to be globally unique (as opposed to locally-assigned unique local addresses, which are generated in a way that is likely to be unique, but not guaranteed to be unique). The expired draft draft-ietf-ipv6-ula-central-01.txt (available from <http://tools.ietf.org/html/draft-ietf-ipv6-ula-central-01>) talks about an escrow function to ensure uniqueness. It seems to me that a "central" ULA registry operated by AfriNIC (presumably in parallel with other similar registries operated by other RIRs) would not satisfy the requirement for guaranteed global uniqueness. There would be a possibility of collisions in the assignments made by different registries, unless there was a way of performing some kind of cross-registry uniqueness check. I think that a realistic proposal to establish a central ULA registry should address the mechanism for performing the uniqueness checks. The proposal on the table does not do so. I'd also like to see some consideration of mechanisms to prevent hoarding of addresses. --apb (Alan Barrett) _______________________________________________ rpd mailing list [email protected] https://lists.afrinic.net/mailman/listinfo.cgi/rpd
