subnets et in-addr.arpa

cmic cmic at caramail.com
Wed Aug 17 07:08:00 UTC 2005


Hello  /dev/smthing

/dev/rob0 a =E9crit :

> On Tuesday 2005-August-16 02:41, cmic wrote:
> > > Of course it is, why not? Your zone would be "21.172.in-addr.arpa."
>
> > 172.21.36.12 and 172.21.39.254 for example. This is why I post this
> > request.
>
> And you'll be authoritative for 172.21.0.0 through 172.21.255.255. Is
> that a problem for you? Does someone else "own" the rest of that /16?
> You are aware that it's a reserved netblock, yes?

Alas yes, the other subnets (particularly the neighbours) are reserved.
In fact the French ministery decided one day to allocate chunks of
"private" adresses for the 60000 and some users. So I am stuck with
172.21.36.0/22 . I have solved part of the problem making this in
named.conf:

zone "21.172.in-addr.arpa" {
   file "xxx";
   ...
};

And in file xxx :
.=2E.
$ORIGIN 36.21.172.in-addr.arpa.
12    PTR nacre.socio.prv.
6     PTR another.socio.prv.
$ORIGIN 37.21.172.in-addr.arpa.
6     PTR babel.socio.prv.
$ORIGIN 39.21.172.in-addr.arpa.
254    PTR fw4.socio.prv.
.=2E.
It works, though not elegant enough. (my point of view).
Thank for your help
--
cmic<at>caramail<dot>com>
> --
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