> > On 28.07.08 13:07, Tomasz Pajor wrote:
> > > How can I setup a revdns for a /16 subnet?
> > > Subnet is split to 1x /17 2x /18.

>
> > what do you mean split? are they 3 different ranges you got from your RIR o

> r
> > is that private subnet

>
> I've got a /16 and it will be split into 3 subnets, and I want to create a se
> parate revdns zone for each one.


Just create zones for each of the /24's that make up the /17's and
/18's. Delegate from the /16 to these /24's.

$ORIGIN x.y.in-addr.arpa.
@ SOA ...
@ NS ns1.example.net.
@ NS ns2.example.net.
0 NS ns1.sub1.example.net
0 NS ns2.sub1.example.net
...
127 NS ns1.sub1.example.net
127 NS ns2.sub1.example.net
128 NS ns1.sub2.example.net
128 NS ns2.sub2.example.net
...
191 NS ns1.sub2.example.net
191 NS ns2.sub2.example.net
192 NS ns1.sub3.example.net
192 NS ns2.sub3.example.net
...
255 NS ns1.sub3.example.net
255 NS ns2.sub3.example.net

> > > Do I need to create a separate zone file for each class
> > > (1.1.x.y.in-addr.arpa, 1.10.x.y.in-addr.arpa etc.) or can I create three
> > > zone files for each subnet and place PTR records there?

> >
> > You can create reverse zone for /16 (b.a.in-addr.arpa) or /24
> > (c.b.a.in-addr.arpa). It's easier to mainsain smaller files (256 reverse
> > zones for /24) but it's probably easier to register reverse for /16 if
> > that's public address space.

>
> That's a public address space.
> I found an rfc (http://www.rfc-archive.org/getrfc.php?rfc=4183) i tried to do
> as it says but it won't work :/
>
>
>
>

--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark_Andrews@isc.org