reverse zone delegation question

[Kevin Darcy]

Look OK to me. Check obvious things like typos, etc. Make sure that the 
example2.com nameserver actually accepts queries from the example.com 
nameserver, and gives back reasonable answers. Check the query log on 
the example2.com nameserver to verify that the queries are actually 
reaching it.

                                                                         
                                    - Kevin

dr sarcophagus wrote:
> hello.
> i have a class-b block of ip addresses.
> from that, i wish to delegate one or more /24-sized blocks of addresses to
> another nameserver, but i'm having some problems getting this to work.
>
> as i understand, since i'm using properly-aligned address blocks, i shouldn't
> have to employ any rfc2317-style antics to get this to work.
>
> in this, case, the zone file below serves 10.189.0.0/16, and i wish
> to delegate administration of 10.189.21.0/24 to dns1.example2.com.
>
> i've set up the 21.189.10.in-addr.arpa zone on dns1.example2.com, and can
> query the SOA record for that zone on that server, but when I attempt to 
> query the SOA record using the primary master here (dns1.example.com), it
> fails.
> queries of the PTR records below succeed.
>
> this should be a simple case, and i believe my syntax to be correct.
>
> any thoughts?  any help is much appreciated.
>
>
> ; --- 10.189.rev -----------------------------------------------------------
> $TTL	6h
> @			IN SOA	dns1.example.com. dns.example.com. (
> 				2006070612	21600	3600	3628800 21600)
> ;
> ;				Serial		Refresh Retry	Expire	Minimum
> ;				yyyymmddnn	6h	1h	42d	6h
> ;
> @			IN NS		dns1.example.com.
> 			IN NS		dns2.example.com.
> ;
> ; 10.189.0.0/16
> ;
> ; reverse mappings to hosts
> ;
> ;
> ; 10.189.0.0/24 - Loopback Addresses
> ;
> 1.0			IN PTR	a001.example.com.
> 2.0			IN PTR	a002.example.com.
> 3.0			IN PTR	a003.example.com.
> 4.0			IN PTR	a004.example.com.
> ;
> ; 10.189.16.0/24 - Server Farm
> ;
> 1.16			IN PTR	b001.example.com.
> 2.16			IN PTR	b002.example.com.
> 3.16			IN PTR	b003.example.com.
> ;
> ; 10.189.21.0/24 - delegate
> ;
> 21.189.10.in-addr.arpa.	IN NS	dns1.example2.com.
> ;
> ; 10.189.128.0/24 - User Network 1
> ;
> 1.128			IN PTR	c001.example.com.
> 2.128			IN PTR	c002.example.com.
> 3.128			IN PTR	c003.example.com.
>
>
>
>
>