Classless in-addr.arpa delegation.
Kevin Darcy
kcd at daimlerchrysler.com
Mon Aug 28 21:42:54 UTC 2000
Doing RFC 2317 on a non-bit-boundary is a little unusual, but certainly workable.
That's why I say that "classless delegation" is somewhat of a misnomer -- it's
really *aliasing* rather than "delegation" _per_se_. All your ISP needs to do is
add 10 CNAMEs to the 192.204.212.in-addr.arpa zone:
51 in cname 51.rev.jdimedia.nl.
52 in cname 52.rev.jdimedia.nl.
53 in cname 53.rev.jdimedia.nl.
(etc.)
I've used "rev.jdimedi.nl" here as the "container" zone for the PTR records, but
you could use *anything* mutually-acceptable between your and your ISP, as long as
it's a zone delegated to, and controlled by you.
- Kevin
Igmar Palsenberg wrote:
> > "Classless delegation" is a bit of a misnomer. Is it possible to add 10 CNAMEs
> > to the C-class zone? Sure.
>
> Well, since I've been reading the docs about 10 times, and still find it
> vague :)
>
> According to the docs, you can only delegate subnets of a subnet :
>
> something like :
>
> Networkadress : a.b.c.d/m
>
> In that case, I have to put :
>
> zone "d-m.revclassc.in-addr.arpa" {
> type master;
> file "blabla";
> }
>
> for example : 208.249.192.64/29, that would give :
>
> zone "64-29.192.249.208.in-addr.arpa." {
>
> }
>
> Reading this info, I can't find out how to do it with 10 IP's, without
> setting up 10 zones, which is ugly..
>
> Any docs / examples would be welcome..
>
> Regards,
>
> Igmar
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