nanog mailing list archives

classless delegation [Re: IP address fee??]


From: Peter van Dijk <peter () dataloss nl>
Date: Fri, 6 Sep 2002 16:40:07 +0200


On Fri, Sep 06, 2002 at 04:06:40PM +0200, Brad Knowles wrote:
At 3:32 PM +0200 2002/09/06, Brad Knowles wrote:
 Have a look, for example, at the reverses for 193.109.122.192/28 and
 let me know if you can find anything wrong with those.
[snip]
      The key phrase is "A correctly operating resolving proxy DNS 
server must discard them ...".

Yes. This is your original complaint about matching apexes with
delegations. I am not violating that condition, however.

      Now, if you wanted to do separate zone files, and make sure that 
each zone file doesn't contain any out-of-zone data, that would be a 
different issue.  But this is like handing people sticks of dynamite, 
flamethrowers, and encouraging them to ignite the explosives they're 
holding in their hands.

I am doing separate zone files. Each IP delegated to me is a separate
zone. Now, again, what is wrong with that?

                              DNS Expert
          Detailed Report for 192.122.109.193.in-addr.arpa.
       9/6/02, 4:05 PM, using the analysis setting "Everything"
======================================================================

Information
----------------------------------------------------------------------
Serial number:           1031317961
Primary name server:     ns.dataloss.nl.
Primary mail server:     N/A
Number of records:       N/A


Errors
----------------------------------------------------------------------
o The reverse zone contains one or more A records
    The reverse domain "192.122.109.193.in-addr.arpa." contains one
    or more A records.  A records should only be placed in
    forward-mapping domains.

What A-records is it talking about? I am not seeing any.

[axfr is closed]
[banter about SOA values]
[all servers on the same subnet]

                              DNS Expert
          Detailed Report for 193.122.109.193.in-addr.arpa.
       9/6/02, 4:05 PM, using the analysis setting "Everything"
======================================================================

Information
----------------------------------------------------------------------
Serial number:           1031317961
Primary name server:     ns.dataloss.nl.
Primary mail server:     N/A
Number of records:       N/A


Errors
----------------------------------------------------------------------
o The reverse zone contains one or more A records
    The reverse domain "193.122.109.193.in-addr.arpa." contains one
    or more A records.  A records should only be placed in
    forward-mapping domains.

Again, I am not seeing any A records.

[no axfr]
[soa values]
[all servers on the same subnet]

      What about this?

% dnswalk -ralF 122.109.193.in-addr.arpa.
Checking 122.109.193.in-addr.arpa.
Getting zone transfer of 122.109.193.in-addr.arpa. from ns2.bit.nl...done.
SOA=ns.bit.nl   contact=root.bit.nl

[hosts outside my /29]
[failed zonetransfers]

Nothing there that's wrong with my /29.

                              DNS Expert
            Detailed Report for 122.109.193.in-addr.arpa.

This is the parent zone.

       9/6/02, 3:56 PM, using the analysis setting "Everything"
======================================================================

Information
----------------------------------------------------------------------
Serial number:           2002090401
Primary name server:     ns.bit.nl.
Primary mail server:     N/A
Number of records:       112 (34 NS, 0 MX, 0 A, 0 CNAME, 78 PTR, 0
                         Other)


Errors
----------------------------------------------------------------------
[hosts outside my /29]

Indeed, you found some things wrong with the /24 zone, but that was
not the subject, and nothing you found wrong with the /24 is related
to the /29.

Greetz, Peter
-- 
peter () dataloss nl  |  http://www.dataloss.nl/  |  Undernet:#clue


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