From owner-freebsd-isp Tue Jan 6 19:40:43 1998 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id TAA01917 for isp-outgoing; Tue, 6 Jan 1998 19:40:43 -0800 (PST) (envelope-from owner-freebsd-isp) Received: from cam.grad.kiev.ua (grad-UTC-28k8.ukrtel.net [195.5.25.54]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id TAA01886 for ; Tue, 6 Jan 1998 19:40:27 -0800 (PST) (envelope-from Ruslan@Shevchenko.kiev.ua) Received: from Shevchenko.kiev.ua (localhost [127.0.0.1]) by cam.grad.kiev.ua (8.8.8/8.8.5) with ESMTP id FAA21834; Tue, 6 Jan 1998 05:02:45 GMT Message-ID: <34B1BAEF.76340760@Shevchenko.kiev.ua> Date: Tue, 06 Jan 1998 05:02:42 +0000 From: Ruslan Shevchenko X-Mailer: Mozilla 4.04 [en] (X11; I; FreeBSD 2.2.5-STABLE i386) MIME-Version: 1.0 To: Zeus CC: isp@freebsd.org Subject: Re: DNS - subnet question References: <3.0.32.19980106202544.00922950@nysingles.com> Content-Type: multipart/alternative; boundary="------------564A53704317322862423252" Sender: owner-freebsd-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk --------------564A53704317322862423252 Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 7bit Zeus wrote: > Is there a reverse entry for subnetted class c addresses? > > ie: if a class C is subnetted for 4 different customers who all run > their own name servers...what is the entry for each customer so > they can reliably access each others nets... > > 14.17.208.IN-ADDR.ARPA filename > > covers the whole class c...how would the local nameservers > know to go to other servers for specific subnets? > "Classless IN-ADDR.ARPA delegation"( ftp://ds.internic.net/internet-drafts/draft-ietf-dnsind-classless-inaddr-03.txt ) It is not yet standart (few month ago, now I don't know). Good primer in DNS FAQ. (comp.protocols.dns) Another common practic is simply insert such parts in rev zone of provider. > zm -- @= //RSSH mailto://Ruslan@Shevchenko.Kiev.UA --------------564A53704317322862423252 Content-Type: text/html; charset=koi8-r Content-Transfer-Encoding: 7bit Zeus wrote:
Is there a reverse entry for subnetted class c addresses?

ie: if a class C is subnetted for 4 different customers who all run
their own name servers...what is the entry for each customer so
they can reliably access each others nets...

14.17.208.IN-ADDR.ARPA   filename

covers the whole class c...how would the local nameservers
know to go to other servers for specific subnets?
 

  "Classless IN-ADDR.ARPA delegation"(
ftp://ds.internic.net/internet-drafts/draft-ietf-dnsind-classless-inaddr-03.txt
)

It is not yet standart  (few month ago, now I don't know).

Good primer in DNS FAQ.  (comp.protocols.dns)

Another common practic is simply insert such parts in rev zone of provider.
 

zm

  
-- 

    @=                                   
     //RSSH                              mailto://Ruslan@Shevchenko.Kiev.UA
  --------------564A53704317322862423252--