[dns-operations] Blackhole IANA question

Florian Weimer fweimer at bfk.de
Thu Aug 5 13:51:23 UTC 2010

* Alberto García Moyano:

> I am Alberto Garcia, Coms admin in a ISP. I dont really know if you can
> answer this question, but IANA has sent me to you... so this is my problem:
> we are sending inverse queries to these blackhole servers:
> "blackhole-1.iana.org" and "blackhole-2.iana.org",

These servers are in a special netblock announced by AS112 and are
essentially operated as public anycast (that is, anybody can run those

So you need to provide traceroutes and "show ip bgp" (Quagga, IOS) or
"show route" (JUNOS) output, or we can't help you.

Florian Weimer                <fweimer at 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

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