IPv4 not working reverse on > /24 cidr
Ryan Pavely
paradox at nac.net
Mon Jul 22 15:28:29 UTC 2013
Ryan Pavely
Net Access Corporation
http://www.nac.net/
On 7/22/2013 11:00 AM, Barry Margolin wrote:
> In article <mailman.877.1374504592.20661.bind-users at lists.isc.org>,
> Ryan Pavely <paradox at nac.net> wrote:
>
>> Ok. What am I doing wrong? As far as I know this has worked for years
>> and sometime, weeks, months, years, ago it stopped.
>>
>> This is for doing > /24 (greater in cidr smaller in size)
>> Example: we have a /25 that we host... and another /25 we host.. so we
>> split it up into smaller files unless we own the entire/24
>>
>>
>> The config is loaded.
>> Rndc reload reports all is well.
>> But a lookup fails.
>>
>> Help?
>>
>>
>> BIND 9.9.3-P1 on Linux
>>
>> == included file in named.conf
>> zone "128/27.1.10.10.IN-ADDR.ARPA" {
>> type master;
>> file "/usr/named/rev/10.10.1.128.rev";
>> };
> Do you also have a 1.10.10.in-addr.arpa zone, and does it have all the
> necessary CNAME records pointing x.1.10.10.in-addr.arpa to
> x.128/27.1.10.10.in-addr.arpa?
>
I do not. 10.10.1.128/27 is a RFC1918 sample. In a real-world example
I also have some ATT address space 12.44.51.192/27 or so.. They point it
to me.
If I host a partial class, in this case 10.10.x.x I need to have a
parent file that cnames?
Am I correct I would do something like the following...
$GENERATE 128-160 $ CNAME $.128/27.1.10.10.IN-ADDR.ARPA.
What about when the block is already cnamed -> pointed -> delegated to
my host from an external source?
I tested this. It appears to be true. Interesting.
So that would suggest any time any block > a /24 is hosted you must
actually host the parent zone, pointing to the larger cidr, and then
have your normal files for each cider in that block.
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