Delegating in reverse lookup zones

Joseph S D Yao jsdy at
Tue Dec 15 20:00:38 UTC 2009

On Tue, Dec 15, 2009 at 02:42:37PM -0500, Barry Margolin wrote:
> A fifth option is to use RFC 2317-style classless delegation for all 256 
> entries in the reverse domain:
> $GENERATE 0-255 $       IN      CNAME      $.0/24
> 0/24 IN NS
> 0/24 IN NS
> Then have the customer change the name of their reverse zone to 
> 0/

My first reaction was that RFC 2317 was not intended for /24's.  But
darned if it wouldn't work, and would solve the parent/child consistency
problem I mentioned in my last response.  The problem it raises, of
course, is that not everybody understands what they're seeing when they
look at RFC-2317 configurations.  But if those who need to, do, this is
not a problem.

** Joe Yao				jsdy at - Joseph S. D. Yao

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