Blackhole DNS

Andras Salamon andras at
Fri Feb 22 05:37:41 UTC 2002

On Fri, Feb 22, 2002 at 11:52:53AM +1100, Mark_Andrews at wrote:
> 	The "caching" server here is likely to have both a RFC 1918
> 	address and a non RFC 1918.  It will be getting queries for
> 	the relevant parts of that correspond to the
> 	RFC 1918 address being used.  These queries should be
> 	answered by this server (or another internal server) and NOT
> 	looked up on the Internet.
> 	This is the same way as (
> 	should be on every caching server.  It is address space private
> 	to the host.  Queries for should be answered
> 	locally.
> 	For IPv6 the following should all be local along with the
> 	versions.
> (link local)
> (site local)

This sounds like a great summary of BCP.  Reiterating the question
asked recently, is there a document that one can reference with this
information?  If not, I'll add the above info to DNSRD.

-- Andras Salamon                   andras at
--        DNS Resources Directory
--                                  The online DNS reference since 1994

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