Classless in-addr.arpa delegation
Ryan Weaver
ryanw at infohwy.com
Sat Jan 6 01:02:30 UTC 2001
The way I tend to delegate less than a class C, since we do not have
control of the entire class B is this...
; 240/28 (16ips)
; Subnet Resolution Delegated to Another DNS.
; Delegated DNS zone entry will look like
; zone "240-28.1.168.192.in-addr.arpa" {
; type master;
; file "in-addr/240-28.1.168.192.in-addr.arpa";
; };
; NS Alias and zone entry tags must match. (ie: 240-28)
ns.false.com IN A 192.168.1.242
ns2.false.com IN A 192.168.1.250
240-28 NS ns.false.com.
240-28 NS ns2.false.com.
240 IN CNAME 240.240-28.1.168.192.in-addr.arpa.
241 IN CNAME 241.240-28.1.168.192.in-addr.arpa.
242 IN CNAME 242.240-28.1.168.192.in-addr.arpa.
243 IN CNAME 243.240-28.1.168.192.in-addr.arpa.
244 IN CNAME 244.240-28.1.168.192.in-addr.arpa.
245 IN CNAME 245.240-28.1.168.192.in-addr.arpa.
246 IN CNAME 246.240-28.1.168.192.in-addr.arpa.
247 IN CNAME 247.240-28.1.168.192.in-addr.arpa.
248 IN CNAME 248.240-28.1.168.192.in-addr.arpa.
249 IN CNAME 249.240-28.1.168.192.in-addr.arpa.
250 IN CNAME 250.240-28.1.168.192.in-addr.arpa.
251 IN CNAME 251.240-28.1.168.192.in-addr.arpa.
252 IN CNAME 252.240-28.1.168.192.in-addr.arpa.
253 IN CNAME 253.240-28.1.168.192.in-addr.arpa.
254 IN CNAME 254.240-28.1.168.192.in-addr.arpa.
255 IN CNAME 255.240-28.1.168.192.in-addr.arpa.
----- Original Message -----
From: "Robert Stoll" <bob at esr.com>
To: <comp-protocols-dns-bind at moderators.isc.org>
Sent: Friday, January 05, 2001 6:40 PM
Subject: Classless in-addr.arpa delegation
>
> Hi everyone,
> I'm looking for the best way to delegate part of an in-addr.arpa domain
> to another name server. Let me paint the picture for you:
>
> We have a CIDR block assigned from our ISP, for the sake of this message,
> let's say its 172.16.0.0/18, which gives me 64 class C nets, 172.16.0.0 -
> 172.16.63.0. I want a branch office to have complete control over one of
> the class C address spaces. Setting up the forward delegation is easy, but
> what is the best way of delegating the reverse? I've read through RFC 2317,
> and I agree that it is pretty ugly, but since it is a couple of years old
> I'm hoping there is a better way of doing it.
>
> I'm sure I'm not the only person who has had to do this, so I'm hoping one
> of you can help me out. Sample zone files would be appreciated. :-)
>
>
> Thanks much.
>
> Bob...
>
>
>
>
More information about the bind-users
mailing list