PTR error

[Thomas Duterme]

Hi Joe,

I'm a newbie, so please bear with my mistakes. I went to APNIC
(http://www.apnic.net/db/domain.html) to check 32.108.202.in-addr.arpa and
found nothing.  I assume my ISP has to register this C class with APNIC....
I only have 4 fixed IP addresses but would like to make sure my PTR records
are correct.  I contacted my ISP (I'm in China and am hosting with the
largest Chinese ISP) and they told me I was the first client who ever had
this request (it seemed like they didn't even know what I was talking about)  

How would the delegation work for this class?  ie, since my ISP has
authority over all the Ip addresses of this Class C network, wouldn't their
name servers have to have correct PTR RRs?

Thanks for very much for the help.
Thomas


At 12:56 PM 7/12/00 -0400, Joseph S D Yao wrote:
>On Wed, Jul 12, 2000 at 05:49:48PM +0000, Thomas Duterme wrote:
>> I am using Mice and Men's DNS expert, which is a great tool to diagnose DNS
>> errors.  I have been able to fix all of my errors except for the following:
>> 
>> It claims that 
>> 
>> "There is no PTR record for the hose grendel.madeforchina.com which has the
>> IP address 202.108.32.164"  AND
>> "There is no PTR record for the hose madeforchina.com which has the IP
>> address 202.108.32.165"
>
>Since those are the only two addresses you have declared in forward
>DNS, I would venture to guess that the tool doesn't even see your
>reverse DNS domain.
>
>$ nslookup -type=ns madeforchina.com.
>
>Non-authoritative answer:
>madeforchina.com	nameserver = GRENDEL.madeforchina.com
>madeforchina.com	nameserver = BEAST.madeforchina.com
>
>Authoritative answers can be found from:
>GRENDEL.madeforchina.com	internet address = 202.108.32.164
>BEAST.madeforchina.com	internet address = 202.108.32.165
>
>$ nslookup -type=ns 32.108.202.in-addr.arpa.
>
>*** No address information is available for "32.108.202.in-addr.arpa."
>
>Yup.  Not delegated.  You will have to contact APNIC to get this done.
>
>I am surprised and pleased to note that the DNS Expert looks at
>external servers' notions of your DNS.  Presumably, the reverse DNS
>lookup works from your local name server.
>
>> Below are my db records for madeforchina.com. and my revlookup record.  Can
>> anyone tell me what is wrong here and what I need to do to make sure my PTR
>> records are correct?  Plus, aside from using DNS expert, how could I have
>> checked with something like nslookup to see if I had an error.  Thanks for
>> the help...Thomas
>
>Try both forward and reverse queries, from both local and remote
>servers.
>
>-- 
>Joe Yao				jsdy at cospo.osis.gov - Joseph S. D. Yao
>COSPO/OSIS Computer Support					EMT-B
>-----------------------------------------------------------------------
>This message is not an official statement of COSPO policies.
>