Dear colleagues, At RIPE90 I presented a proposal to deprecate the RIPE-NONAUTH database: https://ripe90.ripe.net/wp-content/uploads/presentations/120-RIPE90-DB-WG-Op... (slide 20) The objects in the RIPE-NONAUTH database are not authoritative, and were created anonymously with a well-known password as out-of-region data in the RIPE IRR database. We don’t know who created this data or whether it is still valid. There are very few (< 100) updates per year, which suggests the data is not being maintained. The RIPE-NONAUTH database has only reduced in size by about 10% since it was created in 2018. The existing cleanup jobs and maintainers are not deleting much data. Ruediger Volk pointed out that ARIN had only very recently introduced their NONAUTH database, so it was a very short-term temporary source, and that does not predict anything about the longstanding data that has been split out into RIPE-NONAUTH. He suggested that the RIPE NCC analyse whether something that’s supposed to go away is still being used, or else there is a pretty big danger that someone is actually depending on it. I now present some analysis of the RIPE-NONAUTH database for review. Perhaps we should not retire the RIPE-NONAUTH database completely as we don't know how it is being used, but we could take action to further reduce its size. Your feedback is appreciated. Should RIPE-NONAUTH Objects Be Returned By Default? --------------------------------------------------- The RIPE-NONAUTH database is included by default in Whois queries. This means that any matching object in the RIPE-NONAUTH database is automatically returned in the Whois query response. That includes as-set, aut-num, route and route6 object types. For example, when querying for "AS2561", the matching aut-num object in the RIPE-NONAUTH database is returned. Additionally, *related* matching objects in the RIPE-NONAUTH database will also be returned by default. For example, when querying for the IPv4 prefix "200.30.0.0/18", the related route object "200.30.0.0/18AS5511" in the RIPE-NONAUTH database is returned. We found that RIPE-NONAUTH objects are returned only in a small number of cases (about 0.006% of all queries), but there is a risk that clients will inadvertently trust non-authoritative data if the "source:" attribute is not checked. As a workaround, clients can use the "-s RIPE" flag to only query the RIPE database. Should objects in the RIPE-NONAUTH database continue to be returned by default? Near Realtime Mirroring (NRTM) ------------------------------ Approximately 20% of NRTM requests query for updates to the NONAUTH database. Should we continue to support mirroring the NONAUTH database, considering the non-authoritative nature of the data and low rate of updates? Should RIPE-NONAUTH objects with an exact match in another RIR database be deleted? ----------------------------------------------------------------------------------- Approximately 31,930 out of 45,754 route(6) objects in the RIPE-NONAUTH database have a matching route(6) object (i.e. matching origin ASN and exactly matching or less-specific prefix) in another RIR’s IRR database. Approximately 13 out of 67 as-set objects in the RIPE-NONAUTH database have an exactly matching as-set in another RIR’s database. Approximately 1,840 out of 2,073 aut-num objects in the RIPE-NONAUTH database have an exactly matching aut-num object in another RIR’s database. Should we delete RIPE-NONAUTH objects which duplicate identically named objects in an authoritative RIR’s database? Should unrouted RIPE-NONAUTH route(6) objects be deleted? --------------------------------------------------------- Approximately 33,912 out of 44,647 RIPE-NONAUTH route(6) objects appear in the global routing table (as of 12th July). Should we remove any NONAUTH route(6) objects which are not announced? Do they serve any useful purpose? Regards Ed Shryane RIPE NCC