denied query on bind

Michael Breton mbreton at commtel.net
Thu Oct 2 17:54:23 UTC 2003


> -----Original Message-----
> From: chris at issolutions.co.uk [mailto:chris at issolutions.co.uk]
> Sent: Thursday, October 02, 2003 11:26 AM
> To: comp-protocols-dns-bind at isc.org
> Subject: Re: denied query on bind
> 
--snip--
> > > > "82.80/28.192.147.12.in-addr.arpa
> 
> Hi All,
> 
> Thankyou for the input, Im very confused about the address
> 80/28.192.147.12.in-addr.arpa, could someone tell me how they found
> out (ie what tool) it is allocated to percy and ns2 ? Ive looked on
> ripe and cant find it, also how can we see who assigned those
> addresses ? What is the 80/28 bit at the beginning?

The "82.80/28.192.147.12.in-addr.arpa" means the following:

That AT&T, who owns 12.0.0.0/8, has allocated 12.147.192.80/28 to someone.

So if you were performing a reverse lookup of 12.147.192.82, then your DNS
server should perform the same query as above after it's initial query of
82.192.147.12.in-addr.arpa.

If the IP address were 12.147.192.81, then it would end up querying
81.80/28.192.147.12.in-addr.arpa.

Does this clear it up at all?

Michael Breton
Commtel


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