Recent events prompted me to look at a few routing registries for information on prefixes dear to me. I have to admit that I don't like what I see. There are quite a few RRs which publish illegitimate shorter prefixes which cover the ones I'm interested in. A few months ago, I looked into this issue for other reasons, and had one or two of them removed, but this is a bit tedious -- especially since some of the databases are not public and are only revealed by other RRs. Should I care about this on-paper prefix hijacking? Is it worthwhile to set up some kind of monitoring? Is there a blacklist of RRs which are known to deliver mostly bogus data to other RRs? -- Florian Weimer <fweimer@bfk.de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99